1
|
Schröder MP, Pfeiffer IPM, Mordhorst S. Methyltransferases from RiPP pathways: shaping the landscape of natural product chemistry. Beilstein J Org Chem 2024; 20:1652-1670. [PMID: 39076295 PMCID: PMC11285071 DOI: 10.3762/bjoc.20.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Accepted: 06/28/2024] [Indexed: 07/31/2024] Open
Abstract
This review article aims to highlight the role of methyltransferases within the context of ribosomally synthesised and post-translationally modified peptide (RiPP) natural products. Methyltransferases play a pivotal role in the biosynthesis of diverse natural products with unique chemical structures and bioactivities. They are highly chemo-, regio-, and stereoselective allowing methylation at various positions. The different possible acceptor regions in ribosomally synthesised peptides are described in this article. Furthermore, we will discuss the potential application of these methyltransferases as powerful biocatalytic tools in the synthesis of modified peptides and other bioactive compounds. By providing an overview of the various methylation options available, this review is intended to emphasise the biocatalytic potential of RiPP methyltransferases and their impact on the field of natural product chemistry.
Collapse
Affiliation(s)
- Maria-Paula Schröder
- Pharmaceutical Institute, Department of Pharmaceutical Biology, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Isabel P-M Pfeiffer
- Pharmaceutical Institute, Department of Pharmaceutical Biology, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| | - Silja Mordhorst
- Pharmaceutical Institute, Department of Pharmaceutical Biology, University of Tübingen, Auf der Morgenstelle 8, 72076 Tübingen, Germany
| |
Collapse
|
2
|
Dangi A, Qureshi T, Chinnathambi S, Kiran Marelli U. Macrocyclic peptides derived from AcPHF6* and AcPHF6 to selectively modulate the Tau aggregation. Bioorg Chem 2024; 151:107625. [PMID: 39013241 DOI: 10.1016/j.bioorg.2024.107625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2024] [Revised: 06/28/2024] [Accepted: 07/08/2024] [Indexed: 07/18/2024]
Abstract
Ten macrocyclic peptides, each comprising 14 amino acids, were designed and synthesized based on the Tau aggregation model hexapeptides AcPHF6* and AcPHF6. The design took into account the aggregation tendencies of each residue in AcPHF6* and AcPHF6, their aggregation models, while employing peptide-based structural design principles including N-methylation to promote turns and to block hydrogen bond propagation and elongation of the aggregation chain. NMR analysis supported that all these peptides adopted an antiparallel β-sheet conformation. Self-aggregation studies characterized the aggregation properties of these peptides, identifying two peptides with the highest (P3) and lowest (P8) aggregation tendencies. In cross-aggregation studies with the parent peptides AcPHF6* and AcPHF6, P3 and P8 were found to promote and reduce aggregation, respectively. Furthermore, P3 and P8 demonstrated an enhancement and diminution effect on the aggregation of K18wt, indicating their capacity to modulate aggregation even at the macromolecular level. Thus, the two simple peptides, P3 and P8 selectively exhibit pro- or anti-aggregation effects on PHF peptides and Tau. This study, has thus developed structurally well-defined non-complex peptides, derived from AcPHF6* and AcPHF6, to modulate Tau aggregation as desired, offering applications in Tau model studies and the development of Tau aggregation inhibitors or promoters.
Collapse
Affiliation(s)
- Abha Dangi
- Central NMR Facility, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, 411008 Pune, India; Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, 411008 Pune, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Sector 19, Kamla Nehru Nagar, Ghaziabad, UP, 201002, India
| | - Tazeen Qureshi
- Neurobiology Group, Biochemical Sciences Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, 411008 Pune, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Sector 19, Kamla Nehru Nagar, Ghaziabad, UP, 201002, India
| | - Subashchandrabose Chinnathambi
- Neurobiology Group, Biochemical Sciences Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, 411008 Pune, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Sector 19, Kamla Nehru Nagar, Ghaziabad, UP, 201002, India.
| | - Udaya Kiran Marelli
- Central NMR Facility, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, 411008 Pune, India; Division of Organic Chemistry, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, 411008 Pune, India; Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Sector 19, Kamla Nehru Nagar, Ghaziabad, UP, 201002, India.
| |
Collapse
|
3
|
Yeom S, Kim DY, Kim S, Gontala A, Park J, Lee YH, Kim HJ. Carboxylate-Directed Pd-Catalyzed β-C(sp 3)-H Arylation of N-Methyl Alanine Derivatives for Diversification of Bioactive Peptides. Org Lett 2023; 25:9008-9013. [PMID: 38084750 DOI: 10.1021/acs.orglett.3c03616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
This study presents a Pd(II)-catalyzed method for the β-C(sp3)-H arylation of N-Cbz- or N-Fmoc-protected N-methyl alanines, providing ready access to building blocks for N-methylated peptide synthesis. For this transformation, the native carboxylate was exploited as the directing group, attributing its success to the use of a monoprotected amino-pyridine ligand. Its synthetic utility was demonstrated by facile generation of nine analogues of the naturally occurring N-methylated cyclic peptide cycloaspeptide A.
Collapse
Affiliation(s)
- Suyeon Yeom
- Department of Chemistry and Center for Proteogenome Research, Korea University, Seoul 02841, Republic of Korea
| | - Do Young Kim
- Department of Chemistry and Center for Proteogenome Research, Korea University, Seoul 02841, Republic of Korea
| | - Seungwoo Kim
- Department of Chemistry and Center for Proteogenome Research, Korea University, Seoul 02841, Republic of Korea
| | - Arjun Gontala
- Department of Chemistry and Center for Proteogenome Research, Korea University, Seoul 02841, Republic of Korea
| | - Jimin Park
- Department of Chemistry and Center for Proteogenome Research, Korea University, Seoul 02841, Republic of Korea
| | - Yong Ho Lee
- Department of Chemistry and Center for Proteogenome Research, Korea University, Seoul 02841, Republic of Korea
| | - Hak Joong Kim
- Department of Chemistry and Center for Proteogenome Research, Korea University, Seoul 02841, Republic of Korea
| |
Collapse
|
4
|
Li X, Wang N, Liu Y, Li W, Bai X, Liu P, He CY. Backbone N-methylation of peptides: Advances in synthesis and applications in pharmaceutical drug development. Bioorg Chem 2023; 141:106892. [PMID: 37776681 DOI: 10.1016/j.bioorg.2023.106892] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Revised: 09/16/2023] [Accepted: 09/25/2023] [Indexed: 10/02/2023]
Abstract
Peptide-based drugs have garnered considerable attention in recent years owing to their increasingly crucial role in the treatment of diverse diseases. However, the limited pharmacokinetic properties of peptides have hindered their full potential. One prominent strategy for enhancing the druggability of peptides is N-methylation, which involves the addition of a methyl group to the nitrogen atom of the peptide backbone. This modification significantly improves the stability, bioavailability, receptor binding affinity and selectivity of peptide drug candidates. In this review, we provide a comprehensive overview of the advancements in synthetic methods for N-methylated peptide synthesis, as well as the associated limitations. Moreover, we explore the versatile effects of N-methylation on various aspects of peptide properties. Furthermore, we emphasize the efforts dedicated to N-methylated peptide pharmaceuticals that have successfully obtained marketing approval.
Collapse
Affiliation(s)
- Xuefei Li
- Key Laboratory of Basic Pharmacology of Ministry of Education, Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou 563000, China; Central Research Institute, United-Imaging Healthcare Group Co., Ltd, Shanghai, China
| | - Ningchao Wang
- Central Research Institute, United-Imaging Healthcare Group Co., Ltd, Shanghai, China
| | - Yuhang Liu
- Central Research Institute, United-Imaging Healthcare Group Co., Ltd, Shanghai, China
| | - Weipiao Li
- Key Laboratory of Basic Pharmacology of Ministry of Education, Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Xinyu Bai
- Key Laboratory of Basic Pharmacology of Ministry of Education, Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Ping Liu
- Key Laboratory of Basic Pharmacology of Ministry of Education, Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou 563000, China
| | - Chun-Yang He
- Key Laboratory of Basic Pharmacology of Ministry of Education, Key Laboratory of Biocatalysis & Chiral Drug Synthesis of Guizhou Province, Zunyi Medical University, Zunyi, Guizhou 563000, China.
| |
Collapse
|
5
|
Román T, Acosta G, Cárdenas C, de la Torre BG, Guzmán F, Albericio F. Protocol for Facile Synthesis of Fmoc-N-Me-AA-OH Using 2-CTC Resin as Temporary and Reusable Protecting Group. Methods Protoc 2023; 6:110. [PMID: 37987357 PMCID: PMC10660853 DOI: 10.3390/mps6060110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 10/12/2023] [Accepted: 11/07/2023] [Indexed: 11/22/2023] Open
Abstract
One approach to enhance the bioavailability and half-life of peptides in vivo is through N-methylation of one or more of the amino acids within the peptide sequence. However, commercially available Fmoc-N-Me-AA-OHs are limited and often expensive. In this study, a solid-phase synthesis method for Fmoc-N-Me-AA-OH was developed using a 2-chlorotrityl chloride (2-CTC) resin as a temporary protective group for the carboxylic acid strategy. Two strategies for the alkylation step were compared, employing either dimethyl sulfate or methyl iodide in the Biron-Kessler method. In this work we tested the protocol with two amino acids: Fmoc-Thr(tBu)-OH and Fmoc-βAla-OH. The first one is an alpha amino acid, very hindered and with the amine group directly influenced by the electronic effects of the carboxy group, whereas in Fmoc-βAla-OH, the presence of a methylene group weakens this influence due to the intervening carbon atoms. The desired amino acids, Fmoc-N-Me-Thr(tBu)-OH and Fmoc-N-Me-βAla-OH, were synthesized by both strategies with high yield and purity.
Collapse
Affiliation(s)
- Tanya Román
- Núcleo Biotecnología Curauma, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile; (T.R.); (C.C.)
- Doctorado en Biotecnología, Pontificia Universidad Católica de Valparaíso, Universidad Técnica Federico Santa María, Valparaíso 2373223, Chile
- Department of Organic Chemistry and CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, University of Barcelona, 08028 Barcelona, Spain;
| | - Gerardo Acosta
- Department of Organic Chemistry and CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, University of Barcelona, 08028 Barcelona, Spain;
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
| | - Constanza Cárdenas
- Núcleo Biotecnología Curauma, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile; (T.R.); (C.C.)
| | - Beatriz G. de la Torre
- KwaZulu-Natal Research Innovation and Sequencing Platform (KRISP), School of Laboratory Medicine and Medical Sciences, College of Health Sciences, University of KwaZulu-Natal, Durban 4041, South Africa;
| | - Fanny Guzmán
- Núcleo Biotecnología Curauma, Pontificia Universidad Católica de Valparaíso, Valparaíso 2373223, Chile; (T.R.); (C.C.)
| | - Fernando Albericio
- Department of Organic Chemistry and CIBER-BBN, Networking Centre on Bioengineering, Biomaterials and Nanomedicine, University of Barcelona, 08028 Barcelona, Spain;
- Institute for Advanced Chemistry of Catalonia (IQAC-CSIC), Jordi Girona 18-26, 08034 Barcelona, Spain
- School of Chemistry and Physics, University of KwaZulu-Natal, Durban 4001, South Africa
| |
Collapse
|
6
|
Einsiedler M, Gulder TAM. Discovery of extended product structural space of the fungal dioxygenase AsqJ. Nat Commun 2023; 14:3658. [PMID: 37339975 DOI: 10.1038/s41467-023-39111-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Accepted: 05/25/2023] [Indexed: 06/22/2023] Open
Abstract
The fungal dioxygenase AsqJ catalyses the conversion of benzo[1,4]diazepine-2,5-diones into quinolone antibiotics. A second, alternative reaction pathway leads to a different biomedically important product class, the quinazolinones. Within this work, we explore the catalytic promiscuity of AsqJ by screening its activity across a broad range of functionalized substrates made accessible by solid-/liquid-phase peptide synthetic routes. These systematic investigations map the substrate tolerance of AsqJ within its two established pathways, revealing significant promiscuity, especially in the quinolone pathway. Most importantly, two further reactivities leading to new AsqJ product classes are discovered, thus significantly expanding the structural space accessible by this biosynthetic enzyme. Switching AsqJ product selectivity is achieved by subtle structural changes on the substrate, revealing a remarkable substrate-controlled product selectivity in enzyme catalysis. Our work paves the way for the biocatalytic synthesis of diverse biomedically important heterocyclic structural frameworks.
Collapse
Affiliation(s)
- Manuel Einsiedler
- Chair of Technical Biochemistry, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Bergstraße 66, 01069, Dresden, Germany
| | - Tobias A M Gulder
- Chair of Technical Biochemistry, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Bergstraße 66, 01069, Dresden, Germany.
- Helmholtz Institute for Pharmaceutical Research Saarland (HIPS), Department of Natural Product Biotechnology, Helmholtz Centre for Infection Research (HZI) and Department of Pharmacy at Saarland University, Campus E8.1, 66123, Saarbrücken, Germany.
| |
Collapse
|
7
|
Meng Y, Huang R. Site-specific methylation on α-N-terminus of peptides through chemical and enzymatic methods. Methods Enzymol 2023; 684:113-133. [PMID: 37230586 PMCID: PMC10525076 DOI: 10.1016/bs.mie.2023.02.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Protein α-N-terminal (Nα) methylation is a post-translational modification catalyzed by N-terminal methyltransferase 1/2 (NTMT1/2) and METTL13. Nα methylation affects protein stability, protein-protein interaction, and protein-DNA interaction. Thus, Nα methylated peptides are essential tools to study the function of Nα methylation, generate specific antibodies for different states of Nα methylation, and characterize the enzyme kinetics and activity. Here, we describe chemical methods of site-specific synthesis of Nα mono-, di-, and trimethylated peptides in the solid phase. In addition, we describethe preparation of trimethylation peptides by recombinant NTMT1 catalysis.
Collapse
Affiliation(s)
- Ying Meng
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue Institute for Drug Discovery, Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN, United States
| | - Rong Huang
- Department of Medicinal Chemistry and Molecular Pharmacology, Purdue Institute for Drug Discovery, Purdue University Center for Cancer Research, Purdue University, West Lafayette, IN, United States.
| |
Collapse
|
8
|
Hosono Y, Uchida S, Shinkai M, Townsend CE, Kelly CN, Naylor MR, Lee HW, Kanamitsu K, Ishii M, Ueki R, Ueda T, Takeuchi K, Sugita M, Akiyama Y, Lokey SR, Morimoto J, Sando S. Amide-to-ester substitution as a stable alternative to N-methylation for increasing membrane permeability in cyclic peptides. Nat Commun 2023; 14:1416. [PMID: 36932083 PMCID: PMC10023679 DOI: 10.1038/s41467-023-36978-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2022] [Accepted: 02/23/2023] [Indexed: 03/19/2023] Open
Abstract
Naturally occurring peptides with high membrane permeability often have ester bonds on their backbones. However, the impact of amide-to-ester substitutions on the membrane permeability of peptides has not been directly evaluated. Here we report the effect of amide-to-ester substitutions on the membrane permeability and conformational ensemble of cyclic peptides related to membrane permeation. Amide-to-ester substitutions are shown to improve the membrane permeability of dipeptides and a model cyclic hexapeptide. NMR-based conformational analysis and enhanced sampling molecular dynamics simulations suggest that the conformational transition of the cyclic hexapeptide upon membrane permeation is differently influenced by an amide-to-ester substitution and an amide N-methylation. The effect of amide-to-ester substitution on membrane permeability of other cyclic hexapeptides, cyclic octapeptides, and a cyclic nonapeptide is also investigated to examine the scope of the substitution. Appropriate utilization of amide-to-ester substitution based on our results will facilitate the development of membrane-permeable peptides.
Collapse
Affiliation(s)
- Yuki Hosono
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Satoshi Uchida
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Moe Shinkai
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Chad E Townsend
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA, 95064, USA
| | - Colin N Kelly
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA, 95064, USA
| | - Matthew R Naylor
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA, 95064, USA
| | - Hsiau-Wei Lee
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA, 95064, USA
| | - Kayoko Kanamitsu
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Mayumi Ishii
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Ryosuke Ueki
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan
| | - Takumi Ueda
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Koh Takeuchi
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan
| | - Masatake Sugita
- Department of Computer Science, School of Computing, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
- Middle-Molecule IT-based Drug Discovery Laboratory (MIDL), Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan
| | - Yutaka Akiyama
- Department of Computer Science, School of Computing, Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan.
- Middle-Molecule IT-based Drug Discovery Laboratory (MIDL), Tokyo Institute of Technology, 2-12-1 Ookayama, Meguro-ku, Tokyo, 152-8550, Japan.
| | - Scott R Lokey
- Department of Chemistry and Biochemistry, University of California, Santa Cruz, CA, 95064, USA.
| | - Jumpei Morimoto
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
| | - Shinsuke Sando
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
- Department of Bioengineering, Graduate School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-8656, Japan.
| |
Collapse
|
9
|
van Neer RHP, Dranchak PK, Liu L, Aitha M, Queme B, Kimura H, Katoh T, Battaile KP, Lovell S, Inglese J, Suga H. Serum-Stable and Selective Backbone-N-Methylated Cyclic Peptides That Inhibit Prokaryotic Glycolytic Mutases. ACS Chem Biol 2022; 17:2284-2295. [PMID: 35904259 PMCID: PMC9900472 DOI: 10.1021/acschembio.2c00403] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
N-Methylated amino acids (N-MeAAs) are privileged residues of naturally occurring peptides critical to bioactivity. However, de novo discovery from ribosome display is limited by poor incorporation of N-methylated amino acids into the nascent peptide chain attributed to a poor EF-Tu affinity for the N-methyl-aminoacyl-tRNA. By reconfiguring the tRNA's T-stem region to compensate and tune the EF-Tu affinity, we conducted Random nonstandard Peptides Integrated Discovery (RaPID) display of a macrocyclic peptide (MCP) library containing six different N-MeAAs. We have here devised a "pool-and-split" enrichment strategy using the RaPID display and identified N-methylated MCPs against three species of prokaryotic metal-ion-dependent phosphoglycerate mutases. The enriched MCPs reached 57% N-methylation with up to three consecutively incorporated N-MeAAs, rivaling natural products. Potent nanomolar inhibitors ranging in ortholog selectivity, strongly mediated by N-methylation, were identified. Co-crystal structures reveal an architecturally related Ce-2 Ipglycermide active-site metal-ion-coordinating Cys lariat MCP, functionally dependent on two cis N-MeAAs with broadened iPGM species selectivity over the original nematode-selective MCPs. Furthermore, the isolation of a novel metal-ion-independent Staphylococcus aureus iPGM inhibitor utilizing a phosphoglycerate mimetic mechanism illustrates the diversity of possible chemotypes encoded by the N-MeAA MCP library.
Collapse
Affiliation(s)
- R H P van Neer
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - P K Dranchak
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland 20850, United States
| | - L Liu
- Protein Structure and X-ray Crystallography Laboratory, Structural Biology Center, University of Kansas, Lawrence, Kansas 66045, United States
| | - M Aitha
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland 20850, United States
| | - B Queme
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland 20850, United States
| | - H Kimura
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - T Katoh
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| | - K P Battaile
- New York Structural Biology Center, NSLS-II, Upton, New York 11973, United States
| | - S Lovell
- Protein Structure and X-ray Crystallography Laboratory, Structural Biology Center, University of Kansas, Lawrence, Kansas 66045, United States
| | - J Inglese
- National Center for Advancing Translational Sciences, National Institutes of Health, Rockville, Maryland 20850, United States
- National Human Genome Research Institute, National Institutes of Health, Bethesda, Maryland 20892, United States
| | - H Suga
- Department of Chemistry, Graduate School of Science, The University of Tokyo, Tokyo 113-0033, Japan
| |
Collapse
|
10
|
The Latest FDA-Approved Pharmaceuticals Containing Fragments of Tailor-Made Amino Acids and Fluorine. Pharmaceuticals (Basel) 2022; 15:ph15080999. [PMID: 36015147 PMCID: PMC9416721 DOI: 10.3390/ph15080999] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/07/2022] [Accepted: 08/11/2022] [Indexed: 01/19/2023] Open
Abstract
Nowadays, the selective introduction of fluorine into bioactive compounds is a mature strategy in the design of drugs allowing to increase efficiency, biological half-life and bio-absorption. On the other hand, amino acids (AAs) represent one of the most ubiquitious classes of naturally occurring organic compounds, which are found in over 40% of newly marked small-molecule pharmaceutical drugs and medical formulations. The primary goal of this work is to underscore two major trends in the design of modern pharmaceuticals. The first is dealing with the unique structural characteristics provided by the structure of amino acids featuring an abundance of functionality and the presence of a stereogenic center, all of which bodes well for the successful development of targeted bioactivity. The second is related to fine-tuning the desired activity and pharmacokinetics by selective introduction of fluorine. Historically, both trends were developed separately as innovative and prolific approaches in modern drug design. However, in recent decades, these approaches are clearly converging leading to an ever-increasing number of newly approved pharmaceuticals containing both structural features of amino acids and fluorine.
Collapse
|
11
|
Abstract
Peptides have traditionally been perceived as poor drug candidates due to unfavorable characteristics mainly regarding their pharmacokinetic behavior, including plasma stability, membrane permeability and circulation half-life. Nonetheless, in recent years, general strategies to tackle those shortcomings have been established, and peptides are subsequently gaining increasing interest as drugs due to their unique ability to combine the advantages of antibodies and small molecules. Macrocyclic peptides are a special focus of drug development efforts due to their ability to address so called ‘undruggable’ targets characterized by large and flat protein surfaces lacking binding pockets. Here, the main strategies developed to date for adapting peptides for clinical use are summarized, which may soon help usher in an age highly shaped by peptide-based therapeutics. Nonetheless, limited membrane permeability is still to overcome before peptide therapeutics will be broadly accepted.
Collapse
|
12
|
Hawkins PME, Hoi DM, Cheung CY, Wang T, Quan D, Sasi VM, Liu DY, Linington RG, Jackson CJ, Oehlers SH, Cook GM, Britton WJ, Clausen T, Payne RJ. Potent Bactericidal Antimycobacterials Targeting the Chaperone ClpC1 Based on the Depsipeptide Natural Products Ecumicin and Ohmyungsamycin A. J Med Chem 2022; 65:4893-4908. [PMID: 35293761 DOI: 10.1021/acs.jmedchem.1c02122] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Ohmyungsamycin A and ecumicin are structurally related cyclic depsipeptide natural products that possess activity against Mycobacterium tuberculosis (Mtb), the causative agent of tuberculosis (TB). Herein, we describe the design and synthesis of a library of analogues of these two natural products using an efficient solid-phase synthesis and late-stage macrolactamization strategy. Lead analogues possessed potent activity against Mtb in vitro (minimum inhibitory concentration 125-500 nM) and were shown to inhibit protein degradation by the mycobacterial ClpC1-ClpP1P2 protease with an associated enhancement of ClpC1 ATPase activity. The most promising analogue from the series exhibited rapid bactericidal killing activity against Mtb, capable of sterilizing cultures after 7 days, and retained bactericidal activity against hypoxic non-replicating Mtb. This natural product analogue was also active in an in vivo zebrafish model of infection.
Collapse
Affiliation(s)
- Paige M E Hawkins
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia.,Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - David M Hoi
- Research Institute of Molecular Pathology (IMP), Dr-Bohr-Gasse 7, Vienna 1030, Austria
| | - Chen-Yi Cheung
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, P.O. Box 56, Dunedin 9016, New Zealand
| | - Trixie Wang
- Tuberculosis Research Program at the Centenary Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Diana Quan
- Tuberculosis Research Program at the Centenary Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Vishnu Mini Sasi
- Research School of Chemistry, Australian National University, Acton, 2601 Australian Capital Territory, Australia
| | - Dennis Y Liu
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Roger G Linington
- Department of Chemistry, Simon Fraser University, Burnaby, British Columbia V5A 1S6, Canada
| | - Colin J Jackson
- Research School of Chemistry, Australian National University, Acton, 2601 Australian Capital Territory, Australia
| | - Stefan H Oehlers
- Tuberculosis Research Program at the Centenary Institute, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Gregory M Cook
- Department of Microbiology and Immunology, School of Biomedical Sciences, University of Otago, P.O. Box 56, Dunedin 9016, New Zealand
| | - Warwick J Britton
- Tuberculosis Research Program at the Centenary Institute, The University of Sydney, Sydney, New South Wales 2006, Australia.,Central Clinical School, Faculty of Medicine and Health, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Tim Clausen
- Research Institute of Molecular Pathology (IMP), Dr-Bohr-Gasse 7, Vienna 1030, Austria
| | - Richard J Payne
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia.,Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, New South Wales 2006, Australia
| |
Collapse
|
13
|
Koteva K, Sychantha D, Rotondo CM, Hobson C, Britten JF, Wright GD. Three-Dimensional Structure and Optimization of the Metallo-β-Lactamase Inhibitor Aspergillomarasmine A. ACS OMEGA 2022; 7:4170-4184. [PMID: 35155911 PMCID: PMC8829947 DOI: 10.1021/acsomega.1c05757] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 12/27/2021] [Indexed: 06/14/2023]
Abstract
The aminopolycarboxylic acid aspergillomarasmine A (AMA) is a natural Zn2+ metallophore and inhibitor of metallo-β-lactamases (MBLs) which reverses β-lactam resistance. The first crystal structure of an AMA coordination complex is reported and reveals a pentadentate ligand with distorted octahedral geometry. We report the solid-phase synthesis of 23 novel analogs of AMA involving structural diversification of each subunit (l-Asp, l-APA1, and l-APA2). Inhibitory activity was evaluated in vitro using five strains of Escherichia coli producing globally prevalent MBLs. Further in vitro assessment was performed with purified recombinant enzymes and intracellular accumulation studies. Highly constrained structure-activity relationships were demonstrated, but three analogs revealed favorable characteristics where either Zn2+ affinity or the binding mode to MBLs were improved. This study identifies compounds that can further be developed to produce more potent and broader-spectrum MBL inhibitors with improved pharmacodynamic/pharmacokinetic properties.
Collapse
Affiliation(s)
- Kalinka Koteva
- David
Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for
Infectious Disease Research, Department of Biochemistry and Biomedical
Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - David Sychantha
- David
Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for
Infectious Disease Research, Department of Biochemistry and Biomedical
Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - Caitlyn M. Rotondo
- David
Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for
Infectious Disease Research, Department of Biochemistry and Biomedical
Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - Christian Hobson
- David
Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for
Infectious Disease Research, Department of Biochemistry and Biomedical
Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
- Willow
Biosciences, 2250 Boundary
Rd, Burnaby, BC V5M 3Z3, Canada
| | - James F. Britten
- McMaster
Analytical X-ray Diffraction Facility (MAX), McMaster University, Hamilton, ON L8N 3Z5, Canada
| | - Gerard D. Wright
- David
Braley Centre for Antibiotic Discovery, M.G. DeGroote Institute for
Infectious Disease Research, Department of Biochemistry and Biomedical
Sciences, McMaster University, Hamilton, ON L8N 3Z5, Canada
| |
Collapse
|
14
|
Kitamura T, Suzuki R, Inuki S, Ohno H, McPhail KL, Oishi S. Design of Coibamide A Mimetics with Improved Cellular Bioactivity. ACS Med Chem Lett 2022; 13:105-110. [PMID: 35059129 PMCID: PMC8762706 DOI: 10.1021/acsmedchemlett.1c00591] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 12/06/2021] [Indexed: 11/30/2022] Open
Abstract
Coibamide A, a cyclic depsipeptide isolated from a Panamanian marine cyanobacterium, shows potent cytotoxic activity via the inhibition of the Sec61 translocon. We designed a coibamide A mimetic in which the ester linkage between MeThr and d-MeAla in coibamide A was replaced with an alkyl linker to provide a stable macrocyclic scaffold possessing a MeLys(Me) residue. Taking advantage of a facile solid-phase synthetic approach, an structure-activity relationship (SAR) study of the newly designed macrocyclic structure was performed, with a focus on altering the pattern of N-methyl substitution and amino acid configurations. Overall, the simplified macrocyclic scaffold with an alkyl linker resulted in a significantly reduced cytotoxicity. Instead, more potent coibamide A derivatives with a β-(4-biphenylyl)alanine (Bph) group were identified after the optimization of the Tyr(Me) position in the original macrocyclic scaffold of coibamide A based on the characteristic apratoxin A substructures. The similar SAR between coibamide A and apratoxin A suggests that the binding site of the Tyr(Me) side chain at the luminal end of Sec61α may be shared.
Collapse
Affiliation(s)
- Takashi Kitamura
- Graduate
School of Pharmaceutical Sciences, Kyoto
University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Rikito Suzuki
- Graduate
School of Pharmaceutical Sciences, Kyoto
University, Sakyo-ku, Kyoto 606-8501, Japan
- Department
of Medicinal Chemistry, Kyoto Pharmaceutical
University, Yamashina-ku, Kyoto 607-8412, Japan
| | - Shinsuke Inuki
- Graduate
School of Pharmaceutical Sciences, Kyoto
University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Hiroaki Ohno
- Graduate
School of Pharmaceutical Sciences, Kyoto
University, Sakyo-ku, Kyoto 606-8501, Japan
| | - Kerry L. McPhail
- Department
of Pharmaceutical Sciences, College of Pharmacy, Oregon State University, Corvallis, Oregon 97331, United States
| | - Shinya Oishi
- Graduate
School of Pharmaceutical Sciences, Kyoto
University, Sakyo-ku, Kyoto 606-8501, Japan
- Department
of Medicinal Chemistry, Kyoto Pharmaceutical
University, Yamashina-ku, Kyoto 607-8412, Japan
| |
Collapse
|
15
|
Aldemir H, Shu S, Schaefers F, Hong H, Richarz R, Harteis S, Einsiedler M, Milzarek TM, Schneider S, Gulder TAM. Carrier Protein-Free Enzymatic Biaryl Coupling in Arylomycin A2 Assembly and Structure of the Cytochrome P450 AryC*. Chemistry 2021; 28:e202103389. [PMID: 34725865 PMCID: PMC9299028 DOI: 10.1002/chem.202103389] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Indexed: 12/16/2022]
Abstract
The arylomycin antibiotics are potent inhibitors of bacterial type I signal peptidase. These lipohexapeptides contain a biaryl structural motif reminiscent of glycopeptide antibiotics. We herein describe the functional and structural evaluation of AryC, the cytochrome P450 performing biaryl coupling in biosynthetic arylomycin assembly. Unlike its enzymatic counterparts in glycopeptide biosynthesis, AryC converts free substrates without the requirement of any protein interaction partner, likely enabled by a strongly hydrophobic cavity at the surface of AryC pointing to the substrate tunnel. This activity enables chemo‐enzymatic assembly of arylomycin A2 that combines the advantages of liquid‐ and solid‐phase peptide synthesis with late‐stage enzymatic cross‐coupling. The reactivity of AryC is unprecedented in cytochrome P450‐mediated biaryl construction in non‐ribosomal peptides, in which peptidyl carrier protein (PCP)‐tethering so far was shown crucial both in vivo and in vitro.
Collapse
Affiliation(s)
- Hülya Aldemir
- Chair of Technical Biochemistry, Technical University of Dresden, Bergstraße 66, 01069, Dresden, Germany.,Biosystems Chemistry, Faculty of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85748, Garching, Germany
| | - Shuangjie Shu
- Chair of Technical Biochemistry, Technical University of Dresden, Bergstraße 66, 01069, Dresden, Germany.,Biosystems Chemistry, Faculty of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85748, Garching, Germany
| | - Francoise Schaefers
- Biosystems Chemistry, Faculty of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85748, Garching, Germany
| | - Hanna Hong
- Biosystems Chemistry, Faculty of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85748, Garching, Germany
| | - René Richarz
- Biosystems Chemistry, Faculty of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85748, Garching, Germany
| | - Sabrina Harteis
- Biosystems Chemistry, Faculty of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85748, Garching, Germany
| | - Manuel Einsiedler
- Chair of Technical Biochemistry, Technical University of Dresden, Bergstraße 66, 01069, Dresden, Germany
| | - Tobias M Milzarek
- Chair of Technical Biochemistry, Technical University of Dresden, Bergstraße 66, 01069, Dresden, Germany
| | - Sabine Schneider
- Department of Chemistry, Ludwig-Maximillians-University Munich, Butenandtstraße 5-13, 81377, Munich, Germany
| | - Tobias A M Gulder
- Chair of Technical Biochemistry, Technical University of Dresden, Bergstraße 66, 01069, Dresden, Germany.,Biosystems Chemistry, Faculty of Chemistry, Technical University of Munich, Lichtenbergstraße 4, 85748, Garching, Germany
| |
Collapse
|
16
|
Herlan CN, Sonnefeld A, Gloge T, Brückel J, Schlee LC, Muhle-Goll C, Nieger M, Bräse S. Macrocyclic Tetramers-Structural Investigation of Peptide-Peptoid Hybrids. Molecules 2021; 26:molecules26154548. [PMID: 34361700 PMCID: PMC8348019 DOI: 10.3390/molecules26154548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2021] [Revised: 07/23/2021] [Accepted: 07/24/2021] [Indexed: 11/16/2022] Open
Abstract
Outstanding affinity and specificity are the main characteristics of peptides, rendering them interesting compounds for basic and medicinal research. However, their biological applicability is limited due to fast proteolytic degradation. The use of mimetic peptoids overcomes this disadvantage, though they lack stereochemical information at the α-carbon. Hybrids composed of amino acids and peptoid monomers combine the unique properties of both parent classes. Rigidification of the backbone increases the affinity towards various targets. However, only little is known about the spatial structure of such constrained hybrids. The determination of the three-dimensional structure is a key step for the identification of new targets as well as the rational design of bioactive compounds. Herein, we report the synthesis and the structural elucidation of novel tetrameric macrocycles. Measurements were taken in solid and solution states with the help of X-ray scattering and NMR spectroscopy. The investigations made will help to find diverse applications for this new, promising compound class.
Collapse
Affiliation(s)
- Claudine Nicole Herlan
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (C.N.H.); (J.B.); (L.C.S.)
| | - Anna Sonnefeld
- Institute for Biological Interfaces 4, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (A.S.); (T.G.); (C.M.-G.)
| | - Thomas Gloge
- Institute for Biological Interfaces 4, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (A.S.); (T.G.); (C.M.-G.)
| | - Julian Brückel
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (C.N.H.); (J.B.); (L.C.S.)
| | - Luisa Chiara Schlee
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (C.N.H.); (J.B.); (L.C.S.)
| | - Claudia Muhle-Goll
- Institute for Biological Interfaces 4, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany; (A.S.); (T.G.); (C.M.-G.)
| | - Martin Nieger
- Department of Chemistry, University of Helsinki, P.O. Box 55 (A.I. Virtasen aukio 1), FIN-00014 Helsinki, Finland;
| | - Stefan Bräse
- Institute of Organic Chemistry, Karlsruhe Institute of Technology, Fritz-Haber-Weg 6, 76131 Karlsruhe, Germany; (C.N.H.); (J.B.); (L.C.S.)
- Institute of Biological and Chemical Systems—Functional Molecular Systems, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344 Eggenstein-Leopoldshafen, Germany
- Correspondence:
| |
Collapse
|
17
|
Tomassi S, D’Amore VM, Di Leva FS, Vannini A, Quilici G, Weinmüller M, Reichart F, Amato J, Romano B, Izzo AA, Di Maro S, Novellino E, Musco G, Gianni T, Kessler H, Marinelli L. Halting the Spread of Herpes Simplex Virus-1: The Discovery of an Effective Dual αvβ6/αvβ8 Integrin Ligand. J Med Chem 2021; 64:6972-6984. [PMID: 33961417 PMCID: PMC8279406 DOI: 10.1021/acs.jmedchem.1c00533] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Indexed: 02/08/2023]
Abstract
Over recent years, αvβ6 and αvβ8 Arg-Gly-Asp (RGD) integrins have risen to prominence as interchangeable co-receptors for the cellular entry of herpes simplex virus-1 (HSV-1). In fact, the employment of subtype-specific integrin-neutralizing antibodies or gene-silencing siRNAs has emerged as a valuable strategy for impairing HSV infectivity. Here, we shift the focus to a more affordable pharmaceutical approach based on small RGD-containing cyclic pentapeptides. Starting from our recently developed αvβ6-preferential peptide [RGD-Chg-E]-CONH2 (1), a small library of N-methylated derivatives (2-6) was indeed synthesized in the attempt to increase its affinity toward αvβ8. Among the novel compounds, [RGD-Chg-(NMe)E]-CONH2 (6) turned out to be a potent αvβ6/αvβ8 binder and a promising inhibitor of HSV entry through an integrin-dependent mechanism. Furthermore, the renewed selectivity profile of 6 was fully rationalized by a NMR/molecular modeling combined approach, providing novel valuable hints for the design of RGD integrin ligands with the desired specificity profile.
Collapse
Affiliation(s)
- Stefano Tomassi
- Dipartimento
di Farmacia, Università degli Studi
di Napoli “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Vincenzo Maria D’Amore
- Dipartimento
di Farmacia, Università degli Studi
di Napoli “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Francesco Saverio Di Leva
- Dipartimento
di Farmacia, Università degli Studi
di Napoli “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Andrea Vannini
- Department
of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy
| | - Giacomo Quilici
- Biomolecular
NMR Unit c/o IRCCS S. Raffaele, Via Olgettina 58, 20132 Milano, Italy
| | - Michael Weinmüller
- Institute
for Advanced Study, Department of Chemistry, Technische Universität München, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Florian Reichart
- Institute
for Advanced Study, Department of Chemistry, Technische Universität München, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Jussara Amato
- Dipartimento
di Farmacia, Università degli Studi
di Napoli “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Barbara Romano
- Dipartimento
di Farmacia, Università degli Studi
di Napoli “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Angelo Antonio Izzo
- Dipartimento
di Farmacia, Università degli Studi
di Napoli “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| | - Salvatore Di Maro
- DiSTABiF, University of Campania
“Luigi Vanvitelli”, Via Vivaldi 43, 81100 Caserta, Italy
| | - Ettore Novellino
- Dipartimento
di Farmacia, Università degli Studi
di Napoli “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
- Facoltà
di Medicina e Chirurgia, Università
Cattolica del Sacro Cuore, Largo Francesco Vito, 1, 00168 Roma, Italy
| | - Giovanna Musco
- Biomolecular
NMR Unit c/o IRCCS S. Raffaele, Via Olgettina 58, 20132 Milano, Italy
| | - Tatiana Gianni
- Department
of Experimental, Diagnostic and Specialty Medicine, University of Bologna, 40126 Bologna, Italy
| | - Horst Kessler
- Institute
for Advanced Study, Department of Chemistry, Technische Universität München, Lichtenbergstraße 4, 85748 Garching, Germany
| | - Luciana Marinelli
- Dipartimento
di Farmacia, Università degli Studi
di Napoli “Federico II”, Via D. Montesano 49, 80131 Naples, Italy
| |
Collapse
|
18
|
Improvement on Permeability of Cyclic Peptide/Peptidomimetic: Backbone N-Methylation as A Useful Tool. Mar Drugs 2021; 19:md19060311. [PMID: 34072121 PMCID: PMC8229464 DOI: 10.3390/md19060311] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 05/22/2021] [Accepted: 05/24/2021] [Indexed: 12/14/2022] Open
Abstract
Peptides have a three-dimensional configuration that can adopt particular conformations for binding to proteins, which are well suited to interact with larger contact surface areas on target proteins. However, low cell permeability is a major challenge in the development of peptide-related drugs. In recent years, backbone N-methylation has been a useful tool for manipulating the permeability of cyclic peptides/peptidomimetics. Backbone N-methylation permits the adjustment of molecule’s conformational space. Several pathways are involved in the drug absorption pathway; the relative importance of each N-methylation to total permeation is likely to differ with intrinsic properties of cyclic peptide/peptidomimetic. Recent studies on the permeability of cyclic peptides/peptidomimetics using the backbone N-methylation strategy and synthetic methodologies will be presented in this review.
Collapse
|
19
|
Einsiedler M, Jamieson CS, Maskeri MA, Houk KN, Gulder TAM. Fungal Dioxygenase AsqJ Is Promiscuous and Bimodal: Substrate-Directed Formation of Quinolones versus Quinazolinones. Angew Chem Int Ed Engl 2021; 60:8297-8302. [PMID: 33411393 PMCID: PMC8049060 DOI: 10.1002/anie.202017086] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Indexed: 11/10/2022]
Abstract
Previous studies showed that the FeII/α‐ketoglutarate dependent dioxygenase AsqJ induces a skeletal rearrangement in viridicatin biosynthesis in Aspergillus nidulans, generating a quinolone scaffold from benzo[1,4]diazepine‐2,5‐dione substrates. We report that AsqJ catalyzes an additional, entirely different reaction, simply by a change in substituent in the benzodiazepinedione substrate. This new mechanism is established by substrate screening, application of functional probes, and computational analysis. AsqJ excises H2CO from the heterocyclic ring structure of suitable benzo[1,4]diazepine‐2,5‐dione substrates to generate quinazolinones. This novel AsqJ catalysis pathway is governed by a single substituent within the complex substrate. This unique substrate‐directed reactivity of AsqJ enables the targeted biocatalytic generation of either quinolones or quinazolinones, two alkaloid frameworks of exceptional biomedical relevance.
Collapse
Affiliation(s)
- Manuel Einsiedler
- Department of Chemistry and Food Chemistry, Chair of Technical Biochemistry, Technical University of Dresden, Bergstraße 66, 01069, Dresden, Germany
| | - Cooper S Jamieson
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095-1569, USA
| | - Mark A Maskeri
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095-1569, USA
| | - Kendall N Houk
- Department of Chemistry and Biochemistry, University of California, Los Angeles, CA, 90095-1569, USA
| | - Tobias A M Gulder
- Department of Chemistry and Food Chemistry, Chair of Technical Biochemistry, Technical University of Dresden, Bergstraße 66, 01069, Dresden, Germany
| |
Collapse
|
20
|
Einsiedler M, Jamieson CS, Maskeri MA, Houk KN, Gulder TAM. Fungal Dioxygenase AsqJ Is Promiscuous and Bimodal: Substrate‐Directed Formation of Quinolones versus Quinazolinones. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202017086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Manuel Einsiedler
- Department of Chemistry and Food Chemistry Chair of Technical Biochemistry Technical University of Dresden Bergstraße 66 01069 Dresden Germany
| | - Cooper S. Jamieson
- Department of Chemistry and Biochemistry University of California Los Angeles CA 90095-1569 USA
| | - Mark A. Maskeri
- Department of Chemistry and Biochemistry University of California Los Angeles CA 90095-1569 USA
| | - Kendall N. Houk
- Department of Chemistry and Biochemistry University of California Los Angeles CA 90095-1569 USA
| | - Tobias A. M. Gulder
- Department of Chemistry and Food Chemistry Chair of Technical Biochemistry Technical University of Dresden Bergstraße 66 01069 Dresden Germany
| |
Collapse
|
21
|
Miller SE, Tsuji K, Abrams RPM, Burke TR, Schneider JP. Uncoupling the Folding-Function Paradigm of Lytic Peptides to Deliver Impermeable Inhibitors of Intracellular Protein-Protein Interactions. J Am Chem Soc 2020; 142:19950-19955. [PMID: 33175531 PMCID: PMC8916162 DOI: 10.1021/jacs.0c07921] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Here, we describe the use of peptide backbone N-methylation as a new strategy to transform membrane-lytic peptides (MLPs) into cytocompatible intracellular delivery vehicles. The ability of lytic peptides to engage with cell membranes has been exploited for drug delivery to carry impermeable cargo into cells, but their inherent toxicity results in narrow therapeutic windows that limit their clinical translation. For most linear MLPs, a prerequisite for membrane activity is their folding at cell surfaces. Modification of their backbone with N-methyl amides inhibits folding, which directly correlates to a reduction in lytic potential but only minimally affects cell entry. We synthesized a library of N-methylated peptides derived from MLPs and conducted structure-activity studies that demonstrated the broad utility of this approach across different secondary structures, including both β-sheet and helix-forming peptides. Our strategy is highlighted by the delivery of a notoriously difficult class of protein-protein interaction inhibitors that displayed on-target activity within cells.
Collapse
Affiliation(s)
- Stephen E Miller
- Chemical Biology Laboratory, National Cancer Institute, National Institutes of Health, Frederick, Maryland 21702 United States
| | - Kohei Tsuji
- Chemical Biology Laboratory, National Cancer Institute, National Institutes of Health, Frederick, Maryland 21702 United States
| | - Rachel P M Abrams
- Section of Infections of the Nervous System, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda Maryland 20892, United States
| | - Terrence R Burke
- Chemical Biology Laboratory, National Cancer Institute, National Institutes of Health, Frederick, Maryland 21702 United States
| | - Joel P Schneider
- Chemical Biology Laboratory, National Cancer Institute, National Institutes of Health, Frederick, Maryland 21702 United States
| |
Collapse
|
22
|
Chung JH, Tang AH, Geraghty K, Corcilius L, Kaiser M, Payne RJ. Total Synthesis and Antitrypanosomal Activity of Janadolide and Simplified Analogues. Org Lett 2020; 22:3089-3093. [PMID: 32251602 DOI: 10.1021/acs.orglett.0c00840] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Janadolide is a cyclic depsipeptide natural product isolated from the marine cyanobacterium Okeania sp. Herein, we describe the total synthesis of janadolide, along with eight simplified analogues, via an efficient solid-phase strategy. Crucial to the synthesis of the natural product was the construction of a key polyketide fragment via an enantioselective (-)-B-chlorodiisopinocampheylborane-mediated reduction and a B-alkyl Suzuki reaction. Janadolide and the simplified analogues exhibited antitrypanosomal activity against pathogenic Trypanosoma brucei rhodesiense and Trypanosoma cruzi parasites.
Collapse
Affiliation(s)
- Jonathan H Chung
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Arthur H Tang
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Kieran Geraghty
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Leo Corcilius
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Marcel Kaiser
- Swiss Tropical and Public Health Institute, Socinstrasse 57, 4051 Basel, Switzerland.,University of Basel, 4001 Basel, Switzerland
| | - Richard J Payne
- School of Chemistry, The University of Sydney, Sydney, New South Wales 2006, Australia
| |
Collapse
|
23
|
Goyal V, Gahtori J, Narani A, Gupta P, Bordoloi A, Natte K. Commercial Pd/C-Catalyzed N-Methylation of Nitroarenes and Amines Using Methanol as Both C1 and H2 Source. J Org Chem 2019; 84:15389-15398. [DOI: 10.1021/acs.joc.9b02141] [Citation(s) in RCA: 42] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Vishakha Goyal
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Joggers Road, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201 002, India
| | - Jyoti Gahtori
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Joggers Road, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201 002, India
| | - Anand Narani
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Joggers Road, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201 002, India
| | | | - Ankur Bordoloi
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Joggers Road, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201 002, India
| | - Kishore Natte
- Academy of Scientific and Innovative Research (AcSIR), CSIR-HRDC Campus, Joggers Road, Kamla Nehru Nagar, Ghaziabad, Uttar Pradesh 201 002, India
| |
Collapse
|
24
|
Denèfle T, Pramil E, Gómez-Morales L, Levasseur MD, Lardé E, Newton C, Herry K, Herbi L, Lamotte Y, Odile E, Ancellin N, Grondin P, Martinez-Torres AC, Viviani F, Merle-Beral H, Lequin O, Susin SA, Karoyan P. Homotrimerization Approach in the Design of Thrombospondin-1 Mimetic Peptides with Improved Potency in Triggering Regulated Cell Death of Cancer Cells. J Med Chem 2019; 62:7656-7668. [PMID: 31403795 DOI: 10.1021/acs.jmedchem.9b00024] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
In order to optimize the potency of the first serum-stable peptide agonist of CD47 (PKHB1) in triggering regulated cell death of cancer cells, we designed a maturation process aimed to mimic the trimeric structure of the thrombospondin-1/CD47 binding epitope. For that purpose, an N-methylation scan of the PKHB1 sequence was realized to prevent peptide aggregation. Structural and pharmacological analyses were conducted in order to assess the conformational impact of these chemical modifications on the backbone structure and the biological activity. This structure-activity relationship study led to the discovery of a highly soluble N-methylated peptide that we termed PKT16. Afterward, this monomer was used for the design of a homotrimeric peptide mimic that we termed [PKT16]3, which proved to be 10-fold more potent than its monomeric counterpart. A pharmacological evaluation of [PKT16]3 in inducing cell death of adherent (A549) and nonadherent (MEC-1) cancer cell lines was also performed.
Collapse
Affiliation(s)
- Thomas Denèfle
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France
| | - Elodie Pramil
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France.,Cell Death and Drug Resistance in Lymphoproliferative Disorders Team , Centre de Recherche des Cordeliers, INSERM UMRS 1138 , 75006 Paris , France
| | - Luis Gómez-Morales
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France.,Laboratory of Immunology and Virology , Autonomous University of Nuevo Leon , 66451 San Nicolas de los Garza , NL , Mexico
| | - Mikail D Levasseur
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France
| | - Eva Lardé
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France
| | - Clara Newton
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France
| | - Kenny Herry
- OncoDesign , 25 Avenue du Québec , 91140 Les Ulis , France
| | - Linda Herbi
- Cell Death and Drug Resistance in Lymphoproliferative Disorders Team , Centre de Recherche des Cordeliers, INSERM UMRS 1138 , 75006 Paris , France
| | - Yann Lamotte
- OncoDesign , 25 Avenue du Québec , 91140 Les Ulis , France
| | - Estelle Odile
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France
| | | | - Pascal Grondin
- OncoDesign , 25 Avenue du Québec , 91140 Les Ulis , France
| | - Ana-Carolina Martinez-Torres
- Laboratory of Immunology and Virology , Autonomous University of Nuevo Leon , 66451 San Nicolas de los Garza , NL , Mexico
| | | | - Hélène Merle-Beral
- Cell Death and Drug Resistance in Lymphoproliferative Disorders Team , Centre de Recherche des Cordeliers, INSERM UMRS 1138 , 75006 Paris , France
| | - Olivier Lequin
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France
| | - Santos A Susin
- Cell Death and Drug Resistance in Lymphoproliferative Disorders Team , Centre de Recherche des Cordeliers, INSERM UMRS 1138 , 75006 Paris , France
| | - Philippe Karoyan
- Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM , 75005 Paris , France.,Sorbonne Université , Ecole Normale Supérieure, PSL University, CNRS, Laboratoire des Biomolécules, LBM, Site OncoDesign , 25-27 Avenue du Québec , 91140 Les Ulis , France.,SiRIC CURAMUS (CANCER UNITED RESEARCH ASSOCIATING MEDICINE, UNIVERSITY & SOCIETY, Site de Recherche Intégrée sur le Cancer) IUC, AP-HP.6 , Sorbonne Université 75005 Paris , France.,Kayvisa AG , Industriestrasse, 44 , 6300 Zug , Switzerland.,Kaybiotix GmbH , Zugerstrasse 32 , 6340 Baar , Switzerland
| |
Collapse
|
25
|
Urbańczyk M, Jewgiński M, Krzciuk-Gula J, Góra J, Latajka R, Sewald N. Synthesis and conformational preferences of short analogues of antifreeze glycopeptides (AFGP). Beilstein J Org Chem 2019; 15:1581-1591. [PMID: 31435440 PMCID: PMC6664394 DOI: 10.3762/bjoc.15.162] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2019] [Accepted: 06/12/2019] [Indexed: 01/01/2023] Open
Abstract
Antifreeze glycoproteins are a class of biological agents which enable living at temperatures below the freezing point of the body fluids. Antifreeze glycopeptides usually consist of repeating tripeptide unit (-Ala-Ala-Thr*-), glycosylated at the threonine side chain. However, on the microscopic level, the mechanism of action of these compounds remains unclear. As previous research has shown, antifreeze activity of antifreeze glycopeptides strongly relies on the overall conformation of the molecule as well an on the stereochemistry of amino acid residues. The desired monoglycosylated analogues with acetylated amino termini and the carboxy termini in form of N-methylamide have been synthesized. Conformational nuclear magnetic resonance (NMR) studies of the designed analogues have shown a strong influence of the stereochemistry of amino acid residues on the peptide chain stability, which could be connected to the antifreeze activity of these compounds. A better understanding of the mechanism of action of antifreeze glycopeptides would allow applying these materials, e.g., in food industry and biomedicine.
Collapse
Affiliation(s)
- Małgorzata Urbańczyk
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspianskiego 27, Wroclaw, PL-50-370, Poland
| | - Michał Jewgiński
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspianskiego 27, Wroclaw, PL-50-370, Poland
| | - Joanna Krzciuk-Gula
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspianskiego 27, Wroclaw, PL-50-370, Poland
| | - Jerzy Góra
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspianskiego 27, Wroclaw, PL-50-370, Poland
| | - Rafał Latajka
- Department of Bioorganic Chemistry, Faculty of Chemistry, Wroclaw University of Science and Technology, Wybrzeże Wyspianskiego 27, Wroclaw, PL-50-370, Poland
| | - Norbert Sewald
- Organic and Bioorganic Chemistry, Department of Chemistry, Bielefeld University, Universitätsstraße 25, Bielefeld, D-33615, Germany
| |
Collapse
|
26
|
Rapid assembly and profiling of an anticoagulant sulfoprotein library. Proc Natl Acad Sci U S A 2019; 116:13873-13878. [PMID: 31221752 DOI: 10.1073/pnas.1905177116] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Abstract
Hematophagous organisms produce a suite of salivary proteins which interact with the host's coagulation machinery to facilitate the acquisition and digestion of a bloodmeal. Many of these biomolecules inhibit the central blood-clotting serine proteinase thrombin that is also the target of several clinically approved anticoagulants. Here a bioinformatics approach is used to identify seven tick proteins with putative thrombin inhibitory activity that we predict to be posttranslationally sulfated at two conserved tyrosine residues. To corroborate the biological role of these molecules and investigate the effects of amino acid sequence and sulfation modifications on thrombin inhibition and anticoagulant activity, a library of 34 homogeneously sulfated protein variants were rapidly assembled using one-pot diselenide-selenoester ligation (DSL)-deselenization chemistry. Downstream functional characterization validated the thrombin-directed activity of all target molecules and revealed that posttranslational sulfation of specific tyrosine residues crucially modulates potency. Importantly, access to this homogeneously modified protein library not only enabled the determination of key structure-activity relationships and the identification of potent anticoagulant leads, but also revealed subtleties in the mechanism of thrombin inhibition, between and within the families, that would be impossible to predict from the amino acid sequence alone. The synthetic platform described here therefore serves as a highly valuable tool for the generation and thorough characterization of libraries of related peptide and/or protein molecules (with or without modifications) for the identification of lead candidates for medicinal chemistry programs.
Collapse
|
27
|
Saavedra CJ, Carro C, Hernández D, Boto A. Conversion of “Customizable Units” into N-Alkyl Amino Acids and Generation of N-Alkyl Peptides. J Org Chem 2019; 84:8392-8410. [DOI: 10.1021/acs.joc.9b00114] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Carlos J. Saavedra
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
- BIOSIGMA, Antonio Domı́nguez Alfonso 16, 38003-Sta. Cruz de Tenerife, Tenerife, Spain
| | - Carmen Carro
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
- BIOSIGMA, Antonio Domı́nguez Alfonso 16, 38003-Sta. Cruz de Tenerife, Tenerife, Spain
| | - Dácil Hernández
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
| | - Alicia Boto
- Instituto de Productos Naturales y Agrobiología del CSIC, Avda. Astrofísico Francisco Sánchez 3, 38206 La Laguna, Tenerife, Spain
| |
Collapse
|
28
|
Merlino F, Billard É, Yousif AM, Di Maro S, Brancaccio D, Abate L, Carotenuto A, Bellavita R, d'Emmanuele di Villa Bianca R, Santicioli P, Marinelli L, Novellino E, Hébert TE, Lubell WD, Chatenet D, Grieco P. Functional Selectivity Revealed by N-Methylation Scanning of Human Urotensin II and Related Peptides. J Med Chem 2019; 62:1455-1467. [PMID: 30615452 DOI: 10.1021/acs.jmedchem.8b01601] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In accordance with their common but also divergent physiological actions, human urotensin II (1) and urotensin II-related peptide (2) could stabilize specific urotensin II receptor (UTR) conformations, thereby activating different signaling pathways, a feature referred to as biased agonism or functional selectivity. Sequential N-methylation of the amides in the conserved core sequence of 1, 2, and fragment U-II4-11 (3) shed light on structural requirements involved in their functional selectivity. Thus, 18 N-methylated UTR ligands were synthesized and their biological profiles evaluated using in vitro competition binding assays, ex vivo rat aortic ring bioassays and BRET-based biosensor experiments. Biological activity diverged from that of the parent structures contingent on the location of amide methylation, indicating relevant hydrogen-bond interactions for the function of the endogenous peptides. Conformational analysis of selected N-methyl analogs indicated the importance of specific amide residues of 2 for the distinct pharmacology relative to 1 and 3.
Collapse
Affiliation(s)
- Francesco Merlino
- Department of Pharmacy , University of Naples "Federico II" , via D. Montesano 49 , Naples 80131 , Italy
| | - Étienne Billard
- INRS-Institut Armand-Frappier, Groupe de Recherche en Ingénierie des Peptides et en Pharmacothérapie (GRIPP) , Université du Québec , 531 Boulevard des Prairies , Ville de Laval , Québec H7V 1B7 , Canada
| | - Ali M Yousif
- Department of Pharmacy , University of Naples "Federico II" , via D. Montesano 49 , Naples 80131 , Italy
| | - Salvatore Di Maro
- Department of Pharmacy , University of Naples "Federico II" , via D. Montesano 49 , Naples 80131 , Italy
| | - Diego Brancaccio
- Department of Pharmacy , University of Naples "Federico II" , via D. Montesano 49 , Naples 80131 , Italy
| | - Luigi Abate
- Department of Pharmacy , University of Naples "Federico II" , via D. Montesano 49 , Naples 80131 , Italy
| | - Alfonso Carotenuto
- Department of Pharmacy , University of Naples "Federico II" , via D. Montesano 49 , Naples 80131 , Italy
| | - Rosa Bellavita
- Department of Pharmacy , University of Naples "Federico II" , via D. Montesano 49 , Naples 80131 , Italy
| | | | - Paolo Santicioli
- Department of Pharmacology , Menarini Ricerche , via Rismondo 12/A , Florence 50131 , Italy
| | - Luciana Marinelli
- Department of Pharmacy , University of Naples "Federico II" , via D. Montesano 49 , Naples 80131 , Italy
| | - Ettore Novellino
- Department of Pharmacy , University of Naples "Federico II" , via D. Montesano 49 , Naples 80131 , Italy
| | - Terence E Hébert
- Department of Pharmacology and Therapeutics , McGill University , Montréal , Québec H3A 1A3 , Canada
| | - William D Lubell
- Département de Chimie , Université de Montréal , C.P. 6128, Station Centre-ville , Montréal , Québec H3C 3J7 , Canada
| | - David Chatenet
- INRS-Institut Armand-Frappier, Groupe de Recherche en Ingénierie des Peptides et en Pharmacothérapie (GRIPP) , Université du Québec , 531 Boulevard des Prairies , Ville de Laval , Québec H7V 1B7 , Canada
| | - Paolo Grieco
- Department of Pharmacy , University of Naples "Federico II" , via D. Montesano 49 , Naples 80131 , Italy
| |
Collapse
|
29
|
Chen Y. Recent Advances in Methylation: A Guide for Selecting Methylation Reagents. Chemistry 2018; 25:3405-3439. [DOI: 10.1002/chem.201803642] [Citation(s) in RCA: 119] [Impact Index Per Article: 19.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Yantao Chen
- Medicinal Chemistry, Cardiovascular, Renal and Metabolism, IMED Biotech UnitAstraZeneca Gothenburg Sweden
| |
Collapse
|
30
|
Zhou R, Sun Y, Li H, Long W, Liao X, Feng P, Xu S. Synthesis and Biological Evaluation of Reniochalistatins A-E and a Reniochalistatin E Analogue. ChemMedChem 2018; 13:2202-2207. [DOI: 10.1002/cmdc.201800529] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Indexed: 11/07/2022]
Affiliation(s)
- Rong Zhou
- Department of Chemistry; Jinan University; Guangzhou 510632 China
| | - Yueguang Sun
- Department of Chemistry; Jinan University; Guangzhou 510632 China
| | - Hangbin Li
- Department of Chemistry; Jinan University; Guangzhou 510632 China
| | - Weili Long
- Department of Chemistry; Jinan University; Guangzhou 510632 China
| | - Xiaojian Liao
- Department of Chemistry; Jinan University; Guangzhou 510632 China
| | - Pengju Feng
- Department of Chemistry; Jinan University; Guangzhou 510632 China
| | - Shihai Xu
- Department of Chemistry; Jinan University; Guangzhou 510632 China
| |
Collapse
|
31
|
Sousbie M, Vivancos M, Brouillette RL, Besserer-Offroy É, Longpré JM, Leduc R, Sarret P, Marsault É. Structural Optimization and Characterization of Potent Analgesic Macrocyclic Analogues of Neurotensin (8–13). J Med Chem 2018; 61:7103-7115. [DOI: 10.1021/acs.jmedchem.8b00175] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Marc Sousbie
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, 3001 12e Avenue Nord, Sherbrooke, Quebec J1H 5N4, Canada
| | - Mélanie Vivancos
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, 3001 12e Avenue Nord, Sherbrooke, Quebec J1H 5N4, Canada
| | - Rebecca L. Brouillette
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, 3001 12e Avenue Nord, Sherbrooke, Quebec J1H 5N4, Canada
| | - Élie Besserer-Offroy
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, 3001 12e Avenue Nord, Sherbrooke, Quebec J1H 5N4, Canada
| | - Jean-Michel Longpré
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, 3001 12e Avenue Nord, Sherbrooke, Quebec J1H 5N4, Canada
| | - Richard Leduc
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, 3001 12e Avenue Nord, Sherbrooke, Quebec J1H 5N4, Canada
| | - Philippe Sarret
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, 3001 12e Avenue Nord, Sherbrooke, Quebec J1H 5N4, Canada
| | - Éric Marsault
- Department of Pharmacology and Physiology, Faculty of Medicine and Health Sciences, Institut de Pharmacologie de Sherbrooke, Université de Sherbrooke, 3001 12e Avenue Nord, Sherbrooke, Quebec J1H 5N4, Canada
| |
Collapse
|
32
|
Improving oral bioavailability of cyclic peptides by N-methylation. Bioorg Med Chem 2018; 26:2766-2773. [DOI: 10.1016/j.bmc.2017.08.031] [Citation(s) in RCA: 106] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2017] [Revised: 08/16/2017] [Accepted: 08/18/2017] [Indexed: 01/19/2023]
|
33
|
Wesche F, Adihou H, Kaiser A, Wurglics M, Schubert-Zsilavecz M, Kaiser M, Bode HB. Combined Approach of Backbone Amide Linking and On-Resin N-Methylation for the Synthesis of Bioactive and Metabolically Stable Peptides. J Med Chem 2018; 61:3930-3938. [DOI: 10.1021/acs.jmedchem.7b01809] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Frank Wesche
- Molekulare Biotechnologie, Fachbereich Biowissenschaften, Goethe University Frankfurt, Max-von-Laue-Strasse 9, D-60438 Frankfurt am Main, Germany
| | - Hélène Adihou
- Molekulare Biotechnologie, Fachbereich Biowissenschaften, Goethe University Frankfurt, Max-von-Laue-Strasse 9, D-60438 Frankfurt am Main, Germany
| | - Astrid Kaiser
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Strasse 9, D-60438 Frankfurt am Main, Germany
| | - Mario Wurglics
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Strasse 9, D-60438 Frankfurt am Main, Germany
| | - Manfred Schubert-Zsilavecz
- Institute of Pharmaceutical Chemistry, Goethe University Frankfurt, Max-von-Laue-Strasse 9, D-60438 Frankfurt am Main, Germany
| | - Marcel Kaiser
- Parasite Chemotherapy, Swiss Tropical and Public Health Institute, Socinstrasse 57, CH-4051 Basel, Switzerland
- University of Basel, Petersplatz 1, CH-4003 Basel, Switzerland
| | - Helge B. Bode
- Molekulare Biotechnologie, Fachbereich Biowissenschaften, Goethe University Frankfurt, Max-von-Laue-Strasse 9, D-60438 Frankfurt am Main, Germany
- Buchmann Institute for Molecular Life Sciences (BMLS), Goethe University Frankfurt, Max-von-Laue-Strasse 15, D-60438 Frankfurt am Main, Germany
| |
Collapse
|
34
|
Durek T, Cromm PM, White AM, Schroeder CI, Kaas Q, Weidmann J, Ahmad Fuaad A, Cheneval O, Harvey PJ, Daly NL, Zhou Y, Dellsén A, Österlund T, Larsson N, Knerr L, Bauer U, Kessler H, Cai M, Hruby VJ, Plowright AT, Craik DJ. Development of Novel Melanocortin Receptor Agonists Based on the Cyclic Peptide Framework of Sunflower Trypsin Inhibitor-1. J Med Chem 2018; 61:3674-3684. [PMID: 29605997 DOI: 10.1021/acs.jmedchem.8b00170] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Ultrastable cyclic peptide frameworks offer great potential for drug design due to their improved bioavailability compared to their linear analogues. Using the sunflower trypsin inhibitor-1 (SFTI-1) peptide scaffold in combination with systematic N-methylation of the grafted pharmacophore led to the identification of novel subtype selective melanocortin receptor (MCR) agonists. Multiple bicyclic peptides were synthesized and tested toward their activity at MC1R and MC3-5R. Double N-methylated compound 18 showed a p Ki of 8.73 ± 0.08 ( Ki = 1.92 ± 0.34 nM) and a pEC50 of 9.13 ± 0.04 (EC50 = 0.75 ± 0.08 nM) at the human MC1R and was over 100 times more selective for MC1R. Nuclear magnetic resonance structural analysis of 18 emphasized the role of peptide bond N-methylation in shaping the conformation of the grafted pharmacophore. More broadly, this study highlights the potential of cyclic peptide scaffolds for epitope grafting in combination with N-methylation to introduce receptor subtype selectivity in the context of peptide-based drug discovery.
Collapse
Affiliation(s)
- Thomas Durek
- Institute for Molecular Bioscience , The University of Queensland , Brisbane , QLD 4072 , Australia
| | - Philipp M Cromm
- Institute for Molecular Bioscience , The University of Queensland , Brisbane , QLD 4072 , Australia.,Institute for Advanced Study and Center of Integrated Protein Science, Department Chemie , Technische Universität München , Lichtenbergstrasse 4 , 85747 Garching , Germany
| | - Andrew M White
- Institute for Molecular Bioscience , The University of Queensland , Brisbane , QLD 4072 , Australia
| | - Christina I Schroeder
- Institute for Molecular Bioscience , The University of Queensland , Brisbane , QLD 4072 , Australia
| | - Quentin Kaas
- Institute for Molecular Bioscience , The University of Queensland , Brisbane , QLD 4072 , Australia
| | - Joachim Weidmann
- Institute for Molecular Bioscience , The University of Queensland , Brisbane , QLD 4072 , Australia
| | - Abdullah Ahmad Fuaad
- Institute for Molecular Bioscience , The University of Queensland , Brisbane , QLD 4072 , Australia
| | - Olivier Cheneval
- Institute for Molecular Bioscience , The University of Queensland , Brisbane , QLD 4072 , Australia
| | - Peta J Harvey
- Institute for Molecular Bioscience , The University of Queensland , Brisbane , QLD 4072 , Australia
| | - Norelle L Daly
- Institute for Molecular Bioscience , The University of Queensland , Brisbane , QLD 4072 , Australia
| | - Yang Zhou
- Department of Chemistry and Biochemistry , University of Arizona , Tucson , Arizona 85721 , United States
| | - Anita Dellsén
- Mechanistic Biology & Profiling, Discovery Sciences, IMED Biotech Unit , AstraZeneca , Gothenburg 43183 Sweden
| | - Torben Österlund
- Discovery Biology, Discovery Sciences, IMED Biotech Unit , AstraZeneca , Gothenburg 43183 Sweden.,Drug Safety and Metabolism, IMED Biotech Unit , AstraZeneca , Gothenburg 43183 Sweden
| | - Niklas Larsson
- Discovery Biology, Discovery Sciences, IMED Biotech Unit , AstraZeneca , Gothenburg 43183 Sweden
| | - Laurent Knerr
- Medicinal Chemistry, Cardiovascular and Metabolic Diseases, IMED Biotech Unit , AstraZeneca , Gothenburg 43183 Sweden
| | - Udo Bauer
- Medicinal Chemistry, Cardiovascular and Metabolic Diseases, IMED Biotech Unit , AstraZeneca , Gothenburg 43183 Sweden
| | - Horst Kessler
- Institute for Advanced Study and Center of Integrated Protein Science, Department Chemie , Technische Universität München , Lichtenbergstrasse 4 , 85747 Garching , Germany
| | - Minying Cai
- Department of Chemistry and Biochemistry , University of Arizona , Tucson , Arizona 85721 , United States
| | - Victor J Hruby
- Department of Chemistry and Biochemistry , University of Arizona , Tucson , Arizona 85721 , United States
| | - Alleyn T Plowright
- Medicinal Chemistry, Cardiovascular and Metabolic Diseases, IMED Biotech Unit , AstraZeneca , Gothenburg 43183 Sweden
| | - David J Craik
- Institute for Molecular Bioscience , The University of Queensland , Brisbane , QLD 4072 , Australia
| |
Collapse
|
35
|
Lee LLH, Buckton LK, McAlpine SR. Converting polar cyclic peptides into membrane permeable molecules using N
-methylation. Pept Sci (Hoboken) 2018. [DOI: 10.1002/pep2.24063] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Leo L. H. Lee
- Chemistry; University of New South Wales; Sydney New South Wales Australia
| | - Laura K. Buckton
- Chemistry; University of New South Wales; Sydney New South Wales Australia
| | - Shelli R. McAlpine
- Chemistry; University of New South Wales; Sydney New South Wales Australia
| |
Collapse
|
36
|
Skogh A, Lesniak A, Gaugaz FZ, Svensson R, Lindeberg G, Fransson R, Nyberg F, Hallberg M, Sandström A. Impact of N-methylation of the substance P 1–7 amide on anti-allodynic effect in mice after peripheral administration. Eur J Pharm Sci 2017; 109:533-540. [DOI: 10.1016/j.ejps.2017.09.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 08/31/2017] [Accepted: 09/02/2017] [Indexed: 10/18/2022]
|
37
|
ISWI chromatin remodellers sense nucleosome modifications to determine substrate preference. Nature 2017; 548:607-611. [PMID: 28767641 DOI: 10.1038/nature23671] [Citation(s) in RCA: 118] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2017] [Accepted: 07/25/2017] [Indexed: 12/16/2022]
Abstract
ATP-dependent chromatin remodellers regulate access to genetic information by controlling nucleosome positions in vivo. However, the mechanism by which remodellers discriminate between different nucleosome substrates is poorly understood. Many chromatin remodelling proteins possess conserved protein domains that interact with nucleosomal features. Here we used a quantitative high-throughput approach, based on the use of a DNA-barcoded mononucleosome library, to profile the biochemical activity of human ISWI family remodellers in response to a diverse set of nucleosome modifications. We show that accessory (non-ATPase) subunits of ISWI remodellers can distinguish between differentially modified nucleosomes, directing remodelling activity towards specific nucleosome substrates according to their modification state. Unexpectedly, we show that the nucleosome acidic patch is necessary for maximum activity of all ISWI remodellers evaluated. This dependence also extends to CHD and SWI/SNF family remodellers, suggesting that the acidic patch may be generally required for chromatin remodelling. Critically, remodelling activity can be regulated by modifications neighbouring the acidic patch, signifying that it may act as a tunable interaction hotspot for ATP-dependent chromatin remodellers and, by extension, many other chromatin effectors that engage this region of the nucleosome surface.
Collapse
|
38
|
Naoum JN, Chandra K, Shemesh D, Gerber RB, Gilon C, Hurevich M. DMAP-assisted sulfonylation as an efficient step for the methylation of primary amine motifs on solid support. Beilstein J Org Chem 2017; 13:806-816. [PMID: 28546838 PMCID: PMC5433225 DOI: 10.3762/bjoc.13.81] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 04/11/2017] [Indexed: 11/23/2022] Open
Abstract
Several multistep strategies were developed to ensure single methylation of amines on solid support. These strategies rely on the introduction of the o-NBS protecting/activating group as a key step. We found that the state-of-the-art strategies fail for the methylation of several primary amine motifs, largely due to inefficient sulfonylation. Here we show that using the superior nucleophilic base DMAP instead of the commonly used base collidine as a sulfonylation additive is essential for the introduction of the o-NBS group to these amine motifs. DFT calculations provide an explanation by showing that the energy barrier of the DMAP intermediate is significantly lower than the one of the collidine. We demonstrate that using DMAP as a sole additive in the sulfonylation step results in an overall effective and regioselective N-methylation. The method presented herein proved highly efficient in solid-phase synthesis of a somatostatin analogue bearing three Nα-methylation sites that could not be synthesized using the previously described state-of-the-art methods.
Collapse
Affiliation(s)
- Johnny N Naoum
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond Safra Campus, Givat Ram, Jerusalem, 91904, Israel
| | - Koushik Chandra
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond Safra Campus, Givat Ram, Jerusalem, 91904, Israel
| | - Dorit Shemesh
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond Safra Campus, Givat Ram, Jerusalem, 91904, Israel
- Fritz Haber Research Center, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - R Benny Gerber
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond Safra Campus, Givat Ram, Jerusalem, 91904, Israel
- Fritz Haber Research Center, The Hebrew University of Jerusalem, Jerusalem 91904, Israel
| | - Chaim Gilon
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond Safra Campus, Givat Ram, Jerusalem, 91904, Israel
| | - Mattan Hurevich
- Institute of Chemistry, The Hebrew University of Jerusalem, Edmond Safra Campus, Givat Ram, Jerusalem, 91904, Israel
| |
Collapse
|
39
|
Zhang J, Mulumba M, Ong H, Lubell WD. Diversity-Oriented Synthesis of Cyclic Azapeptides by A3-Macrocyclization Provides High-Affinity CD36-Modulating Peptidomimetics. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201611685] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
- Jinqiang Zhang
- Département de Chimie; Université de Montréal; C.P. 6128, Succursale Centre-Ville Montréal Québec H3C 3J7 Canada
- Present address: School of Pharmaceutical Science; Chongqing University; Chongqing 401331 China
| | - Mukandila Mulumba
- Faculté de Pharmacie; Université de Montréal; C.P. 6128, Succursale Centre-Ville Montréal Québec H3C 3J7 Canada
| | - Huy Ong
- Faculté de Pharmacie; Université de Montréal; C.P. 6128, Succursale Centre-Ville Montréal Québec H3C 3J7 Canada
| | - William D. Lubell
- Département de Chimie; Université de Montréal; C.P. 6128, Succursale Centre-Ville Montréal Québec H3C 3J7 Canada
| |
Collapse
|
40
|
Zhang J, Mulumba M, Ong H, Lubell WD. Diversity-Oriented Synthesis of Cyclic Azapeptides by A 3 -Macrocyclization Provides High-Affinity CD36-Modulating Peptidomimetics. Angew Chem Int Ed Engl 2017; 56:6284-6288. [PMID: 28090719 DOI: 10.1002/anie.201611685] [Citation(s) in RCA: 52] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 12/14/2016] [Indexed: 11/11/2022]
Abstract
Macrocyclization has enabled the use of peptides in drug discovery creating a need for methods to synthesize diverse peptide macrocycles. Azapeptides have advanced to clinically used drugs, however, few cyclic azapeptides have been studied. A multiple component "A3 -macrocyclization" strategy is described for the preparation of diverse cyclic azapeptides and is demonstrated by the synthesis of 15 growth hormone releasing hormone-6 (GHRP-6) analogs. Certain cyclic aza-GHRP-6 analogs exhibited unprecedented affinity for the CD36 receptor, and capacity to modulate Toll-like receptor agonist-induced overproduction of nitric oxide, and reduce pro-inflammatory cytokine and chemokine production in macrophages.
Collapse
Affiliation(s)
- Jinqiang Zhang
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, Québec, H3C 3J7, Canada.,Present address: School of Pharmaceutical Science, Chongqing University, Chongqing, 401331, China
| | - Mukandila Mulumba
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, Québec, H3C 3J7, Canada
| | - Huy Ong
- Faculté de Pharmacie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, Québec, H3C 3J7, Canada
| | - William D Lubell
- Département de Chimie, Université de Montréal, C.P. 6128, Succursale Centre-Ville, Montréal, Québec, H3C 3J7, Canada
| |
Collapse
|
41
|
Marouseau E, Neckebroeck A, Larkin H, Le Roux A, Volkov L, Lavoie CL, Marsault É. Modular sub-monomeric cell-penetrating guanidine-rich peptoids – synthesis, assembly and biological evaluation. RSC Adv 2017. [DOI: 10.1039/c6ra27898a] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Development of a guanidinium-rich transporters toolset to study GAG-mediated cell permeation.
Collapse
Affiliation(s)
- Etienne Marouseau
- Institut de Pharmacologie de Sherbrooke
- Department of Pharmacology and Physiology
- Université de Sherbrooke
- Sherbrooke
- Canada
| | - Albane Neckebroeck
- Institut de Pharmacologie de Sherbrooke
- Department of Pharmacology and Physiology
- Université de Sherbrooke
- Sherbrooke
- Canada
| | - Heidi Larkin
- Institut de Pharmacologie de Sherbrooke
- Department of Pharmacology and Physiology
- Université de Sherbrooke
- Sherbrooke
- Canada
| | - Antoine Le Roux
- Institut de Pharmacologie de Sherbrooke
- Department of Pharmacology and Physiology
- Université de Sherbrooke
- Sherbrooke
- Canada
| | - Leonid Volkov
- Biophotonics Core Facility
- Centre de Recherche du Centre Hospitalier de l’Université de Sherbrooke
- Sherbrooke
- Canada
| | - Christine L. Lavoie
- Institut de Pharmacologie de Sherbrooke
- Department of Pharmacology and Physiology
- Université de Sherbrooke
- Sherbrooke
- Canada
| | - Éric Marsault
- Institut de Pharmacologie de Sherbrooke
- Department of Pharmacology and Physiology
- Université de Sherbrooke
- Sherbrooke
- Canada
| |
Collapse
|
42
|
Mohammed Y, Teixidó M, Namjoshi S, Giralt E, Benson H. Cyclic Dipeptide Shuttles as a Novel Skin Penetration Enhancement Approach: Preliminary Evaluation with Diclofenac. PLoS One 2016; 11:e0160973. [PMID: 27548780 PMCID: PMC4993479 DOI: 10.1371/journal.pone.0160973] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2016] [Accepted: 07/27/2016] [Indexed: 11/18/2022] Open
Abstract
This study demonstrates the effectiveness of a peptide shuttle in delivering diclofenac into and through human epidermis. Diclofenac was conjugated to a novel phenylalanyl-N-methyl-naphthalenylalanine-derived diketopiperazine (DKP) shuttle and to TAT (a classical cell penetrating peptide), and topically applied to human epidermis in vitro. DKP and TAT effectively permeated into and through human epidermis. When conjugated to diclofenac, both DKP and TAT enhanced delivery into and through human epidermis, though DKP was significantly more effective. Penetration of diclofenac through human epidermis (to receptor) was increased by conjugation to the peptide shuttle and cell penetrating peptide with enhancement of 6x by DKP-diclofenac and 3x by TAT-diclofenac. In addition, the amount of diclofenac retained within the epidermis was significantly increased by peptide conjugation. COX-2 inhibition activity of diclofenac was retained when conjugated to DKP. Our study suggests that the peptide shuttle approach may offer a new strategy for targeted delivery of small therapeutic and diagnostic molecules to the skin.
Collapse
Affiliation(s)
- Yousuf Mohammed
- School of Pharmacy, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia
- Therapeutics Research Centre, The University of Queensland, School of Medicine, Translational Research Institute, Brisbane, Queensland, Australia
| | - Meritxell Teixidó
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Science and Technology Institute (BIST), Barcelona, Spain
| | - Sarika Namjoshi
- Therapeutics Research Centre, The University of Queensland, School of Medicine, Translational Research Institute, Brisbane, Queensland, Australia
| | - Ernest Giralt
- Institute for Research in Biomedicine (IRB Barcelona), Barcelona Science and Technology Institute (BIST), Barcelona, Spain
- * E-mail: (HB); (EG)
| | - Heather Benson
- School of Pharmacy, Curtin Health Innovation Research Institute, Curtin University, Perth, Western Australia, Australia
- * E-mail: (HB); (EG)
| |
Collapse
|
43
|
Knuhtsen A, Legrand B, Van der Poorten O, Amblard M, Martinez J, Ballet S, Kristensen JL, Pedersen DS. Conformationally Constrained Peptidomimetics as Inhibitors of the Protein Arginine Methyl Transferases. Chemistry 2016; 22:14022-14028. [DOI: 10.1002/chem.201602518] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Indexed: 01/16/2023]
Affiliation(s)
- Astrid Knuhtsen
- Faculty of Health and Medical Sciences; University of Copenhagen; Universitetsparken 2 2100 Copenhagen Denmark
| | - Baptiste Legrand
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247 CNRS-Université Montpellier-ENSCM; 15 Avenue Charles Flahault 34093 Montpellier, cedex 5 France
| | - Olivier Van der Poorten
- Research Group of Organic Chemistry; Departments of Chemistry and Bio-engineering Sciences; Vrije Universiteit Brussel; Pleinlaan 2 1050 Brussels Belgium
| | - Muriel Amblard
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247 CNRS-Université Montpellier-ENSCM; 15 Avenue Charles Flahault 34093 Montpellier, cedex 5 France
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron (IBMM); UMR 5247 CNRS-Université Montpellier-ENSCM; 15 Avenue Charles Flahault 34093 Montpellier, cedex 5 France
| | - Steven Ballet
- Research Group of Organic Chemistry; Departments of Chemistry and Bio-engineering Sciences; Vrije Universiteit Brussel; Pleinlaan 2 1050 Brussels Belgium
| | - Jesper L. Kristensen
- Faculty of Health and Medical Sciences; University of Copenhagen; Universitetsparken 2 2100 Copenhagen Denmark
| | - Daniel Sejer Pedersen
- Faculty of Health and Medical Sciences; University of Copenhagen; Universitetsparken 2 2100 Copenhagen Denmark
| |
Collapse
|
44
|
Amso Z, Kowalczyk R, Park YE, Watson M, Lin JM, Musson DS, Cornish J, Brimble MA. Synthesis and in vitro bone cell activity of analogues of the cyclohexapeptide dianthin G. Org Biomol Chem 2016; 14:6231-43. [PMID: 27264279 DOI: 10.1039/c6ob00983b] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The cyclohexapeptide natural product dianthin G promotes osteoblast (bone-forming cell) proliferation in vitro at nanomolar concentrations, and is therefore considered a promising candidate for the treatment of osteoporosis. An N(α)-methyl amide bond scan of dianthin G was performed to probe the effect of modifying amide bonds on osteoblast proliferation. In addition, to provide greater structural diversity, a series of dicarba dianthin G analogues was synthesised using ring closing metathesis. Dianthin G and one novel dicarba analogue increased the number of human osteoblasts and importantly they did not increase osteoclast (bone-resorbing cell) differentiation in bone marrow cells.
Collapse
Affiliation(s)
- Zaid Amso
- School of Chemical Sciences, The University of Auckland, 23 Symonds St, Auckland 1142, New Zealand.
| | | | | | | | | | | | | | | |
Collapse
|
45
|
Brust A, Croker DE, Colless B, Ragnarsson L, Andersson Å, Jain K, Garcia-Caraballo S, Castro J, Brierley SM, Alewood PF, Lewis RJ. Conopeptide-Derived κ-Opioid Agonists (Conorphins): Potent, Selective, and Metabolic Stable Dynorphin A Mimetics with Antinociceptive Properties. J Med Chem 2016; 59:2381-95. [PMID: 26859603 DOI: 10.1021/acs.jmedchem.5b00911] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Opioid receptor screening of a conopeptide library led to a novel selective κ-opioid agonist peptide (conorphin T). Intensive medicinal chemistry, guided by potency, selectivity, and stability assays generated a pharmacophore model supporting rational design of highly potent and selective κ-opioid receptor (KOR) agonists (conorphins) with exceptional plasma stability. Conorphins are defined by a hydrophobic benzoprolyl moiety, a double arginine sequence, a spacer amino acid followed by a hydrophobic residue and a C-terminal vicinal disulfide moiety. The pharmacophore model was supported by computational docking studies, revealing receptor-ligand interactions similar to KOR agonist dynorphin A (1-8). A conorphin agonist inhibited colonic nociceptors in a mouse tissue model of chronic visceral hypersensitivity, suggesting the potential of KOR agonists for the treatment of chronic abdominal pain. This new conorphine KOR agonist class and pharmacophore model provide opportunities for future rational drug development and probes for exploring the role of the κ-opioid receptor.
Collapse
Affiliation(s)
- Andreas Brust
- Xenome Limited , Brisbane, Queensland 4068, Australia.,Institute for Molecular Biosciences, The University of Queensland , Brisbane, Queensland, 4072, Australia
| | - Daniel E Croker
- Xenome Limited , Brisbane, Queensland 4068, Australia.,Institute for Molecular Biosciences, The University of Queensland , Brisbane, Queensland, 4072, Australia
| | - Barbara Colless
- Xenome Limited , Brisbane, Queensland 4068, Australia.,Institute for Molecular Biosciences, The University of Queensland , Brisbane, Queensland, 4072, Australia
| | - Lotten Ragnarsson
- Xenome Limited , Brisbane, Queensland 4068, Australia.,Institute for Molecular Biosciences, The University of Queensland , Brisbane, Queensland, 4072, Australia
| | - Åsa Andersson
- Xenome Limited , Brisbane, Queensland 4068, Australia.,Institute for Molecular Biosciences, The University of Queensland , Brisbane, Queensland, 4072, Australia
| | - Kapil Jain
- Institute for Molecular Biosciences, The University of Queensland , Brisbane, Queensland, 4072, Australia
| | - Sonia Garcia-Caraballo
- Visceral Pain Group, Centre for Nutrition and Gastrointestinal Disease, Discipline of Medicine, The University of Adelaide, South Australian Health and Medical Research Institute, SAHMRI , Adelaide, SA 5000, Australia
| | - Joel Castro
- Visceral Pain Group, Centre for Nutrition and Gastrointestinal Disease, Discipline of Medicine, The University of Adelaide, South Australian Health and Medical Research Institute, SAHMRI , Adelaide, SA 5000, Australia
| | - Stuart M Brierley
- Visceral Pain Group, Centre for Nutrition and Gastrointestinal Disease, Discipline of Medicine, The University of Adelaide, South Australian Health and Medical Research Institute, SAHMRI , Adelaide, SA 5000, Australia
| | - Paul F Alewood
- Institute for Molecular Biosciences, The University of Queensland , Brisbane, Queensland, 4072, Australia
| | - Richard J Lewis
- Xenome Limited , Brisbane, Queensland 4068, Australia.,Institute for Molecular Biosciences, The University of Queensland , Brisbane, Queensland, 4072, Australia
| |
Collapse
|
46
|
Jobin S, Vézina-Dawod S, Herby C, Derson A, Biron E. Preparation of N-Substituted N-Arylsulfonylglycines and Their Use in Peptoid Synthesis. Org Lett 2015; 17:5626-9. [DOI: 10.1021/acs.orglett.5b02862] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Steve Jobin
- Faculty of Pharmacy, Université Laval, Québec, Québec G1V 0A6, Canada
- Laboratory
of Medicinal Chemistry, Centre de Recherche du Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier, Québec, Québec G1V 4G2, Canada
| | - Simon Vézina-Dawod
- Faculty of Pharmacy, Université Laval, Québec, Québec G1V 0A6, Canada
- Laboratory
of Medicinal Chemistry, Centre de Recherche du Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier, Québec, Québec G1V 4G2, Canada
| | - Claire Herby
- Faculty of Pharmacy, Université Laval, Québec, Québec G1V 0A6, Canada
- Laboratory
of Medicinal Chemistry, Centre de Recherche du Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier, Québec, Québec G1V 4G2, Canada
| | - Antoine Derson
- Faculty of Pharmacy, Université Laval, Québec, Québec G1V 0A6, Canada
- Laboratory
of Medicinal Chemistry, Centre de Recherche du Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier, Québec, Québec G1V 4G2, Canada
| | - Eric Biron
- Faculty of Pharmacy, Université Laval, Québec, Québec G1V 0A6, Canada
- Laboratory
of Medicinal Chemistry, Centre de Recherche du Centre Hospitalier Universitaire de Québec, 2705 Boulevard Laurier, Québec, Québec G1V 4G2, Canada
| |
Collapse
|
47
|
Fülöpová V, Soural M. Mining the Chemical Space: Application of 2/4-Nitrobenzenesulfonamides in Solid-Phase Synthesis. ACS COMBINATORIAL SCIENCE 2015; 17:570-91. [PMID: 26325251 DOI: 10.1021/acscombsci.5b00089] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Polymer-supported benzenesulfonamides prepared from various immobilized primary amines and 2/4-nitrobenzenesulfonyl chloride have been used as key intermediates in different chemical transformations, including unusual rearrangements to yield a number of diverse privileged scaffolds. This review summarizes individual strategies in their application to date.
Collapse
Affiliation(s)
- Veronika Fülöpová
- Department of Organic Chemistry,
Institute of Molecular and Translational Medicine, Faculty of Science, Palacky University, 17 listopadu 12, 771 46 Olomouc, Czech Republic
| | - Miroslav Soural
- Department of Organic Chemistry,
Institute of Molecular and Translational Medicine, Faculty of Science, Palacky University, 17 listopadu 12, 771 46 Olomouc, Czech Republic
| |
Collapse
|
48
|
Braun CR, Bird GH, Wuhr M, Erickson BK, Rad R, Walensky LD, Gygi SP, Haas W. Generation of multiple reporter ions from a single isobaric reagent increases multiplexing capacity for quantitative proteomics. Anal Chem 2015; 87:9855-63. [PMID: 26308379 PMCID: PMC4890644 DOI: 10.1021/acs.analchem.5b02307] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Isobaric labeling strategies for mass spectrometry-based proteomics enable multiplexed simultaneous quantification of samples and therefore substantially increase the sample throughput in proteomics. However, despite these benefits, current limits to multiplexing capacity are prohibitive for large sample sizes and impose limitations on experimental design. Here, we introduce a novel mechanism for increasing the multiplexing density of isobaric reagents. We present Combinatorial Isobaric Mass Tags (CMTs), an isobaric labeling architecture with the unique ability to generate multiple series of reporter ions simultaneously. We demonstrate that utilization of multiple reporter ion series improves multiplexing capacity of CMT with respect to a commercially available isobaric labeling reagent with preserved quantitative accuracy and depth of coverage in complex mixtures. We provide a blueprint for the realization of 16-plex reagents with 1 Da spacing between reporter ions and up to 28-plex at 6 mDa spacing using only 5 heavy isotopes per reagent. We anticipate that this improvement in multiplexing capacity will further advance the application of quantitative proteomics, particularly in high-throughput screening assays.
Collapse
Affiliation(s)
- Craig R. Braun
- Department of Cell Biology, Harvard Medical School, Harvard University, Boston, Massachusetts 02115, United States
| | - Gregory H. Bird
- Department of Pediatric Oncology and the Linde Program in Cancer Chemical Biology, Dana–Farber Cancer Institute, Boston, Massachusetts 02215, United States
| | - Martin Wuhr
- Department of Cell Biology, Harvard Medical School, Harvard University, Boston, Massachusetts 02115, United States
- Department of Systems Biology, Harvard Medical School, Harvard University, Boston, Massachusetts 02115, United States
| | - Brian K. Erickson
- Department of Cell Biology, Harvard Medical School, Harvard University, Boston, Massachusetts 02115, United States
| | - Ramin Rad
- Department of Cell Biology, Harvard Medical School, Harvard University, Boston, Massachusetts 02115, United States
| | - Loren D. Walensky
- Department of Pediatric Oncology and the Linde Program in Cancer Chemical Biology, Dana–Farber Cancer Institute, Boston, Massachusetts 02215, United States
| | - Steven P. Gygi
- Department of Cell Biology, Harvard Medical School, Harvard University, Boston, Massachusetts 02115, United States
| | - Wilhelm Haas
- Massachusetts General Hospital Cancer Center and Department of Medicine, Harvard Medical School, Charlestown, Massachusetts 02129, United States
| |
Collapse
|
49
|
Leggio A, Alò D, Belsito EL, Di Gioia ML, Romio E, Siciliano C, Liguori A. Lewis acid catalysed methylation ofN-(9H-fluoren-9-yl)methanesulfonyl (Fms) protected lipophilicα-amino acid methyl esters. J Pept Sci 2015; 21:644-50. [DOI: 10.1002/psc.2777] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 03/04/2015] [Accepted: 03/09/2015] [Indexed: 11/06/2022]
Affiliation(s)
- Antonella Leggio
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione; Università della Calabria; Ed. Polifunzionale Rende CS I-87036 Italy
| | - Danila Alò
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione; Università della Calabria; Ed. Polifunzionale Rende CS I-87036 Italy
| | - Emilia Lucia Belsito
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione; Università della Calabria; Ed. Polifunzionale Rende CS I-87036 Italy
| | - Maria Luisa Di Gioia
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione; Università della Calabria; Ed. Polifunzionale Rende CS I-87036 Italy
| | - Emanuela Romio
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione; Università della Calabria; Ed. Polifunzionale Rende CS I-87036 Italy
| | - Carlo Siciliano
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione; Università della Calabria; Ed. Polifunzionale Rende CS I-87036 Italy
| | - Angelo Liguori
- Dipartimento di Farmacia e Scienze della Salute e della Nutrizione; Università della Calabria; Ed. Polifunzionale Rende CS I-87036 Italy
| |
Collapse
|
50
|
Richardson SL, Mao Y, Zhang G, Hanjra P, Peterson DL, Huang R. Kinetic mechanism of protein N-terminal methyltransferase 1. J Biol Chem 2015; 290:11601-10. [PMID: 25771539 DOI: 10.1074/jbc.m114.626846] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2014] [Indexed: 01/10/2023] Open
Abstract
The protein N-terminal methyltransferase 1 (NTMT1) catalyzes the transfer of the methyl group from the S-adenosyl-l-methionine to the protein α-amine, resulting in formation of S-adenosyl-l-homocysteine and α-N-methylated proteins. NTMT1 is an interesting potential anticancer target because it is overexpressed in gastrointestinal cancers and plays an important role in cell mitosis. To gain insight into the biochemical mechanism of NTMT1, we have characterized the kinetic mechanism of recombinant NTMT1 using a fluorescence assay and mass spectrometry. The results of initial velocity, product, and dead-end inhibition studies indicate that methylation by NTMT1 proceeds via a random sequential Bi Bi mechanism. In addition, our processivity studies demonstrate that NTMT1 proceeds via a distributive mechanism for multiple methylations. Together, our studies provide new knowledge about the kinetic mechanism of NTMT1 and lay the foundation for the development of mechanism-based inhibitors.
Collapse
Affiliation(s)
- Stacie L Richardson
- From the Department of Medicinal Chemistry, the Institute for Structural Biology and Drug Discovery, and
| | - Yunfei Mao
- From the Department of Medicinal Chemistry, the Institute for Structural Biology and Drug Discovery, and
| | - Gang Zhang
- From the Department of Medicinal Chemistry, the Institute for Structural Biology and Drug Discovery, and
| | - Pahul Hanjra
- From the Department of Medicinal Chemistry, the Institute for Structural Biology and Drug Discovery, and
| | - Darrell L Peterson
- the Institute for Structural Biology and Drug Discovery, and the Department of Biochemistry and Molecular Biology, Virginia Commonwealth University, Richmond, Virginia 23219
| | - Rong Huang
- From the Department of Medicinal Chemistry, the Institute for Structural Biology and Drug Discovery, and
| |
Collapse
|