1
|
Microwave assisted synthesis of rhodium(+Ⅰ) N-heterocyclic carbene complexes and their cytotoxicity against tumor cell lines. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
2
|
Truong D, Lam NYS, Kamalov M, Riisom M, Jamieson SMF, Harris PWR, Brimble MA, Metzler-Nolte N, Hartinger C. A solid support-based synthetic strategy for the site-selective functionalization of peptides with organometallic half-sandwich moieties. Chemistry 2021; 28:e202104049. [PMID: 34967066 DOI: 10.1002/chem.202104049] [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: 11/10/2021] [Indexed: 11/11/2022]
Abstract
The number of donor atoms available on peptides that can competitively coordinate to metal centers renders the site-selective generation of advanced metal-peptide conjugates in high purity a challenging venture. Herein, we present a transmetalation-based synthetic approach on solid support in which an imidazolium proligand can be used to selectively anchor a range of transition metal half-sandwich complexes onto peptides in the presence of multiple coordinative motifs. Amenable to solid support, a range of N-terminus and/or lysine conjugated metal-peptide conjugates were obtained in high purity after cleavage from the resin. The metalated peptides were evaluated for their anticancer properties against human cancer cell lines. While no cytotoxic activity was observed, this platform has the potential to i) provide a pathway to site-selective peptide labelling, ii) be explored as a biorthogonal handle and/or iii) generate a new strategy for ligand design in transition metal catalysts.
Collapse
Affiliation(s)
- Dianna Truong
- University of Auckland, School of Chemical Sciences, NEW ZEALAND
| | - Nelson Y S Lam
- The Scripps Research Institute, Department of Chemistry, UNITED STATES
| | - Meder Kamalov
- University of Auckland, School of Chemical Sciences, NEW ZEALAND
| | - Mie Riisom
- University of Auckland, School of Chemical Sciences, NEW ZEALAND
| | | | - Paul W R Harris
- University of Auckland, School of Chemical Sciences, NEW ZEALAND
| | | | | | - Christian Hartinger
- University of Auckland, School of Chemical Sciences, 23 Symonds Street, 1010, Auckland, NEW ZEALAND
| |
Collapse
|
3
|
Brewster RC, Labeaga IC, Soden CE, Jarvis AG. Macrocylases as synthetic tools for ligand synthesis: enzymatic synthesis of cyclic peptides containing metal-binding amino acids. ROYAL SOCIETY OPEN SCIENCE 2021; 8:211098. [PMID: 34737880 PMCID: PMC8564625 DOI: 10.1098/rsos.211098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/28/2021] [Accepted: 10/07/2021] [Indexed: 06/13/2023]
Abstract
Improving the sustainability of synthesis is a major goal in green chemistry, which has been greatly aided by the development of asymmetric transition metal catalysis. Recent advances in asymmetric catalysis show that the ability to control the coordination sphere of substrates can lead to improvements in enantioselectivity and activity, in a manner resembling the operation of enzymes. Peptides can be used to mimic enzyme structures and their secondary interactions and they are easily accessible through solid-phase peptide synthesis. Despite this, cyclic peptides remain underexplored as chiral ligands for catalysis due to synthetic complications upon macrocyclization. Here, we show that the solid-phase synthesis of peptides containing metal-binding amino acids, bipyridylalanine (1), phenyl pyridylalanine (2) and N,N-dimethylhistidine (3) can be combined with peptide macrocylization using peptide cyclase 1 (PCY1) to yield cyclic peptides under mild conditions. High conversions of the linear peptides were observed (approx. 90%) and the Cu-bound cyclo(FSAS(1)SSKP) was shown to be a competent catalyst in the Friedel-Crafts/conjugate addition of indole. This study shows that PCY1 can tolerate peptides containing amino acids with classic inorganic and organometallic ligands as side chains, opening the door to the streamlined and efficient development of cyclic peptides as metal ligands.
Collapse
Affiliation(s)
- Richard C. Brewster
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Rd, Edinburgh EH9 3FJ, Scotland
| | - Irati Colmenero Labeaga
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Rd, Edinburgh EH9 3FJ, Scotland
| | - Catriona E. Soden
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Rd, Edinburgh EH9 3FJ, Scotland
| | - Amanda G. Jarvis
- EaStCHEM School of Chemistry, University of Edinburgh, Joseph Black Building, David Brewster Rd, Edinburgh EH9 3FJ, Scotland
| |
Collapse
|
4
|
Lenzen K, Planchestainer M, Feller I, Padrosa DR, Paradisi F, Albrecht M. Minimalistic peptidic scaffolds harbouring an artificial carbene-containing amino acid modulate reductase activity. Chem Commun (Camb) 2021; 57:9068-9071. [PMID: 34498652 PMCID: PMC8427656 DOI: 10.1039/d1cc03158a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Inspired by the boom of new artificial metalloenzymes, we developed an Fmoc-protected histidinium salt (Hum) as N-heterocyclic carbene precursor. Hum was placed via solid-phase peptide synthesis into short 7-mer peptides. Upon iridation, the metallo-peptidic construct displayed activity in catalytic hydrogenation that outperforms small molecule analogues and which is dependent on the peptide sequence, a typical feature of metalloenzymes.
Collapse
Affiliation(s)
- Karst Lenzen
- Department of Chemistry, Biochemistry & Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland.
| | - Matteo Planchestainer
- Department of Chemistry, Biochemistry & Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland.
| | - Isabelle Feller
- Department of Chemistry, Biochemistry & Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland.
| | - David Roura Padrosa
- Department of Chemistry, Biochemistry & Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland.
| | - Francesca Paradisi
- Department of Chemistry, Biochemistry & Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland.
| | - Martin Albrecht
- Department of Chemistry, Biochemistry & Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland.
| |
Collapse
|
5
|
Daubit IM, Sullivan MP, John M, Goldstone DC, Hartinger CG, Metzler-Nolte N. A Combined Spectroscopic and Protein Crystallography Study Reveals Protein Interactions of Rh I(NHC) Complexes at the Molecular Level. Inorg Chem 2020; 59:17191-17199. [PMID: 33180473 DOI: 10.1021/acs.inorgchem.0c02438] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
While most Rh-N-heterocyclic carbene (NHC) complexes currently investigated in anticancer research contain a Rh(III) metal center, an increasing amount of research is focusing on the cytotoxic activity and mode of action of square-planar [RhCl(COD)(NHC)] (where COD = 1,5-cyclooctadiene) which contains a Rh(I) center. The enzyme thioredoxin reductase (TrxR) and the protein albumin have been proposed as potential targets, but the molecular processes taking place upon protein interaction remain elusive. Herein, we report the preparation of peptide-conjugated and its nonconjugated parent [RhCl(COD)(NHC)] complexes, an in-depth investigation of both their stability in solution, and a crystallographic study of protein interaction. The organorhodium compounds showed a rapid loss of the COD ligand and slow loss of the NHC ligand in aqueous solution. These ligand exchange reactions were reflected in studies on the interaction with hen egg white lysozyme (HEWL) as a model protein in single-crystal X-ray crystallographic investigations. Upon treatment of HEWL with an amino acid functionalized [RhCl(COD)(NHC)] complex, two distinct rhodium adducts were found initially after 7 d of incubation at His15 and after 4 weeks also at Lys33. In both cases, the COD and chlorido ligands had been substituted with aqua and/or hydroxido ligands. While the histidine (His) adduct also indicated a loss of the NHC ligand, the lysine (Lys) adduct retained the NHC core derived from the amino acid l-histidine. In either case, an octahedral coordination environment of the metal center indicates oxidation to Rh(III). This investigation gives the first insight on the interaction of Rh(I)(NHC) complexes and proteins at the molecular level.
Collapse
Affiliation(s)
- Isabelle M Daubit
- Inorganic Chemistry I - Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - Matthew P Sullivan
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand.,School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Milena John
- Inorganic Chemistry I - Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| | - David C Goldstone
- School of Biological Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Christian G Hartinger
- School of Chemical Sciences, University of Auckland, Private Bag 92019, Auckland 1142, New Zealand
| | - Nils Metzler-Nolte
- Inorganic Chemistry I - Bioinorganic Chemistry, Faculty of Chemistry and Biochemistry, Ruhr-Universität Bochum, Universitätsstr. 150, 44801 Bochum, Germany
| |
Collapse
|
6
|
Sahoo RK, Mahato M, Jana A, Nembenna S. Zinc Hydride-Catalyzed Hydrofuntionalization of Ketones. J Org Chem 2020; 85:11200-11210. [PMID: 32786632 DOI: 10.1021/acs.joc.0c01285] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Three new dimeric bis-guanidinate zinc(II) alkyl, halide, and hydride complexes [LZnEt]2 (1), [LZnI]2 (2) and [LZnH]2 (3) were prepared. Compound 3 was successfully employed for the hydrosilylation and hydroboration of a vast number of ketones. The catalytic performance of 3 in the hydroboration of acetophenone exhibits a turnover frequency, reaching up to 5800 h-1, outperforming that of reported zinc hydride catalysts. Notably, both intra- and intermolecular chemoselective hydrosilylation and hydroboration reactions have been investigated.
Collapse
Affiliation(s)
- Rajata Kumar Sahoo
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Homi Bhabha National Institute (HBNI), Bhubaneswar 752 050, India
| | - Mamata Mahato
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Homi Bhabha National Institute (HBNI), Bhubaneswar 752 050, India
| | - Achintya Jana
- Undergraduate Programme, Indian Institute of Science, Bangalore 560 012, India
| | - Sharanappa Nembenna
- School of Chemical Sciences, National Institute of Science Education and Research (NISER), Homi Bhabha National Institute (HBNI), Bhubaneswar 752 050, India
| |
Collapse
|
7
|
Jakob CHG, Dominelli B, Hahn EM, Berghausen TO, Pinheiro T, Marques F, Reich RM, Correia JDG, Kühn FE. Antiproliferative Activity of Functionalized Histidine-derived Au(I) bis-NHC Complexes for Bioconjugation. Chem Asian J 2020; 15:2754-2762. [PMID: 32592289 PMCID: PMC7689731 DOI: 10.1002/asia.202000620] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/20/2020] [Indexed: 12/23/2022]
Abstract
A series of histidine derived Au(I) bis-NHC complexes bearing different ester, amide and carboxylic acid functionalities as well as wingtip substituents is synthesized and characterized. The stability in aqueous media, in vitro cytotoxicity in a set of cancer cell lines (MCF7, PC3 and A2780/A2780cisR) along with the cellular uptake are evaluated. Stability tests suggest hydrolysis of the ester within 8 h, which might lead to deactivation. Furthermore, the bis-NHC system shows a sufficient stability against cysteine and the thiol containing peptide GSH. The benzyl ester and amide show the highest activity comparable to the benchmark compound cisplatin, with the ester only displaying a slightly lower cytotoxicity than the amide. A cellular uptake study revealed that the benzyl ester and the amide could have different intracellular distribution profiles but both complexes induce perturbations of the cellular physiological processes. The simple modifiability and high stability of the complexes provides a promising system for upcoming post modifications to enable targeted cancer therapy.
Collapse
Affiliation(s)
- Christian H. G. Jakob
- Molecular CatalysisCatalysis Research Center and Department of Chemistry Department Technische Universität MünchenLichtenbergstrasse 4D-85748Garching bei MünchenGermany
| | - Bruno Dominelli
- Molecular CatalysisCatalysis Research Center and Department of Chemistry Department Technische Universität MünchenLichtenbergstrasse 4D-85748Garching bei MünchenGermany
| | - Eva M. Hahn
- Molecular CatalysisCatalysis Research Center and Department of Chemistry Department Technische Universität MünchenLichtenbergstrasse 4D-85748Garching bei MünchenGermany
| | - Tobias O. Berghausen
- Molecular CatalysisCatalysis Research Center and Department of Chemistry Department Technische Universität MünchenLichtenbergstrasse 4D-85748Garching bei MünchenGermany
| | - Teresa Pinheiro
- Institute for Bioengineering and BiosciencesDepartamento de Engenharia e Ciências NuclearesInstituto Superior TécnicoUniversidade de LisboaAv. Rovisco Pais 11049-001LisboaPortugal
| | - Fernanda Marques
- Centro de Ciências e Tecnologias NuclearesDepartamento de Engenharia e Ciências NuclearesInstituto Superior TécnicoUniversidade de LisboaCTN, Estrada Nacional 10 (km 139,7)2695-066Bobadela LRSPortugal
| | - Robert M. Reich
- Molecular CatalysisCatalysis Research Center and Department of Chemistry Department Technische Universität MünchenLichtenbergstrasse 4D-85748Garching bei MünchenGermany
| | - João D. G. Correia
- Centro de Ciências e Tecnologias NuclearesDepartamento de Engenharia e Ciências NuclearesInstituto Superior TécnicoUniversidade de LisboaCTN, Estrada Nacional 10 (km 139,7)2695-066Bobadela LRSPortugal
| | - Fritz E. Kühn
- Molecular CatalysisCatalysis Research Center and Department of Chemistry Department Technische Universität MünchenLichtenbergstrasse 4D-85748Garching bei MünchenGermany
| |
Collapse
|
8
|
Daubit IM, Wolf J, Metzler-Nolte N. Rhodium(I) and Iridium(I) N-Heterocyclic carbene complexes of imidazolium functionalized amino acids and peptides. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2019.121096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
9
|
Gupta A, Nigam S, Avasthi I, Sharma B, Ateeq B, Verma S. Caspase-3 mediated programmed cell death by a gold-stabilised peptide carbene. Bioorg Med Chem Lett 2019; 29:126672. [PMID: 31570209 DOI: 10.1016/j.bmcl.2019.126672] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 09/01/2019] [Accepted: 09/04/2019] [Indexed: 01/11/2023]
Abstract
The synthesis of novel N-heterocyclic carbene complexes derived from a tripeptide ligand (L), containing non-natural amino acid, thiazolylalanine is described here. The peptide ligand was reacted with suitable precursors to generate gold and mercury carbene complexes. The plausible structures of both complexes were predicted by spectroscopic data and DFT calculations. The binding energy data was also analyzed to predict their stability. The gold carbene complex (1A), showed activity against MCF7 breast cancer cell line due to mitochondrial triggered caspase-3 mediated programmed cell death. Its internalization inside cells could be observed due to autofluorescence. This study affords a methodology for successful generation of peptide carbene complexes for their therapeutic potential.
Collapse
Affiliation(s)
- Astha Gupta
- Department of Chemical Engineering, Indian Institute of Technology Kanpur, Kanpur, India
| | - Shivansh Nigam
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, India
| | - Ilesha Avasthi
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, India
| | - Bikramjit Sharma
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, India
| | - Bushra Ateeq
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, India
| | - Sandeep Verma
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur, India.
| |
Collapse
|
10
|
Ohata J, Martin SC, Ball ZT. Metallvermittelte Funktionalisierung natürlicher Peptide und Proteine: Biokonjugation mit Übergangsmetallen. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201807536] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Jun Ohata
- Department of Chemistry Rice University 6100 Main Houston TX 77005 USA
| | - Samuel C. Martin
- Department of Chemistry Rice University 6100 Main Houston TX 77005 USA
| | - Zachary T. Ball
- Department of Chemistry Rice University 6100 Main Houston TX 77005 USA
| |
Collapse
|
11
|
Ohata J, Martin SC, Ball ZT. Metal‐Mediated Functionalization of Natural Peptides and Proteins: Panning for Bioconjugation Gold. Angew Chem Int Ed Engl 2019; 58:6176-6199. [DOI: 10.1002/anie.201807536] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2018] [Indexed: 01/02/2023]
Affiliation(s)
- Jun Ohata
- Department of Chemistry Rice University 6100 Main Houston TX 77005 USA
| | - Samuel C. Martin
- Department of Chemistry Rice University 6100 Main Houston TX 77005 USA
| | - Zachary T. Ball
- Department of Chemistry Rice University 6100 Main Houston TX 77005 USA
| |
Collapse
|
12
|
Daubit IM, Metzler-Nolte N. On the interaction of N-heterocyclic carbene Ir+I complexes with His and Cys containing peptides. Dalton Trans 2019; 48:13662-13673. [DOI: 10.1039/c9dt01338e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In the interaction of an [Ir(+i)(COD)(NHC)Cl] complex with model peptides a chelating motif with a particularly interesting bimetallic peptide-bridged Ir(+iii)–NHC motif was identified with loss of the COD and Cl ligands and oxidation of the metal.
Collapse
Affiliation(s)
- Isabelle Marie Daubit
- Faculty of Chemistry and Biochemistry
- Inorganic Chemistry I – Bioinorganic Chemistry
- Ruhr-Universität Bochum
- 44801 Bochum
- Germany
| | - Nils Metzler-Nolte
- Faculty of Chemistry and Biochemistry
- Inorganic Chemistry I – Bioinorganic Chemistry
- Ruhr-Universität Bochum
- 44801 Bochum
- Germany
| |
Collapse
|
13
|
|
14
|
Vicens L, Costas M. Biologically inspired oxidation catalysis using metallopeptides. Dalton Trans 2018; 47:1755-1763. [DOI: 10.1039/c7dt03657d] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Metalloenzymes can catalyze the oxidation of hydrocarbons with high efficiency and selectivity. For this reason, they are taken as inspiration for the development of new catalyst. A promising strategy is the combination of metal coordination complexes and peptide chains. The use of metallopeptides in oxidation reactions is discussed.
Collapse
Affiliation(s)
- Laia Vicens
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química
- Universitat de Girona
- Girona E-17071
- Spain
| | - Miquel Costas
- Institut de Química Computacional i Catàlisi (IQCC) and Departament de Química
- Universitat de Girona
- Girona E-17071
- Spain
| |
Collapse
|
15
|
Albada B, Metzler-Nolte N. Organometallic–Peptide Bioconjugates: Synthetic Strategies and Medicinal Applications. Chem Rev 2016; 116:11797-11839. [DOI: 10.1021/acs.chemrev.6b00166] [Citation(s) in RCA: 149] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Bauke Albada
- Laboratory of Organic Chemistry, Wageningen University & Research, Stippeneng 4, 6708 WE Wageningen, The Netherlands
| | - Nils Metzler-Nolte
- Inorganic
Chemistry I − Bioinorganic Chemistry, Ruhr University Bochum, Universitätsstrasse 150, 44780-D Bochum, Germany
| |
Collapse
|
16
|
Pellegrino S, Facchetti G, Contini A, Gelmi ML, Erba E, Gandolfi R, Rimoldi I. Ctr-1 Mets7 motif inspiring new peptide ligands for Cu(i)-catalyzed asymmetric Henry reactions under green conditions. RSC Adv 2016. [DOI: 10.1039/c6ra16255j] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Hybrid catalysts were developed from the Cu(i) binding domain of Ctr1 protein and their activity was evaluated in an asymmetric Henry reaction.
Collapse
Affiliation(s)
- Sara Pellegrino
- Dipartimento di Scienze Farmaceutiche
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Giorgio Facchetti
- Dipartimento di Scienze Farmaceutiche
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Alessandro Contini
- Dipartimento di Scienze Farmaceutiche
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Maria Luisa Gelmi
- Dipartimento di Scienze Farmaceutiche
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Emanuela Erba
- Dipartimento di Scienze Farmaceutiche
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Raffaella Gandolfi
- Dipartimento di Scienze Farmaceutiche
- Università degli Studi di Milano
- 20133 Milano
- Italy
| | - Isabella Rimoldi
- Dipartimento di Scienze Farmaceutiche
- Università degli Studi di Milano
- 20133 Milano
- Italy
| |
Collapse
|
17
|
Lewis JC. Metallopeptide catalysts and artificial metalloenzymes containing unnatural amino acids. Curr Opin Chem Biol 2015; 25:27-35. [PMID: 25545848 PMCID: PMC4380757 DOI: 10.1016/j.cbpa.2014.12.016] [Citation(s) in RCA: 60] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 12/03/2014] [Accepted: 12/11/2014] [Indexed: 01/24/2023]
Abstract
Metallopeptide catalysts and artificial metalloenzymes built from peptide scaffolds and catalytically active metal centers possess a number of exciting properties that could be exploited for selective catalysis. Control over metal catalyst secondary coordination spheres, compatibility with library based methods for optimization and evolution, and biocompatibility stand out in this regard. A wide range of unnatural amino acids (UAAs) have been incorporated into peptide and protein scaffolds using several distinct methods, and the resulting UAAs containing scaffolds can be used to create novel hybrid metal-peptide catalysts. Promising levels of selectivity have been demonstrated for several hybrid catalysts, and these provide a strong impetus and important lessons for the design of and optimization of hybrid catalysts.
Collapse
Affiliation(s)
- Jared C Lewis
- University of Chicago, Department of Chemistry, 5735 South Ellis Avenue, Chicago, IL 60637, United States.
| |
Collapse
|
18
|
Drost RM, Broere DLJ, Hoogenboom J, de Baan SN, Lutz M, de Bruin B, Elsevier CJ. Allylpalladium(II) Histidylidene Complexes and Their Application in
Z
‐Selective Transfer Semihydrogenation of Alkynes. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201403104] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Ruben M. Drost
- Molecular Inorganic Chemistry, Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1090 GD Amsterdam, the Netherlands, http://hims.uva.nl/research/research‐groups/content/molecular‐ inorganic‐chemistry/molecular‐inorganic‐chemistry.html
| | - Daniël L. J. Broere
- Homogeneous Catalysis, Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1090 GD Amsterdam, The Netherlands
| | - Jorin Hoogenboom
- Molecular Inorganic Chemistry, Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1090 GD Amsterdam, the Netherlands, http://hims.uva.nl/research/research‐groups/content/molecular‐ inorganic‐chemistry/molecular‐inorganic‐chemistry.html
| | - Simone N. de Baan
- Molecular Inorganic Chemistry, Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1090 GD Amsterdam, the Netherlands, http://hims.uva.nl/research/research‐groups/content/molecular‐ inorganic‐chemistry/molecular‐inorganic‐chemistry.html
| | - Martin Lutz
- Crystal and Structural Chemistry, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
| | - B. de Bruin
- Homogeneous Catalysis, Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1090 GD Amsterdam, The Netherlands
| | - C. J. Elsevier
- Molecular Inorganic Chemistry, Van 't Hoff Institute for Molecular Sciences, University of Amsterdam, Science Park 904, 1090 GD Amsterdam, the Netherlands, http://hims.uva.nl/research/research‐groups/content/molecular‐ inorganic‐chemistry/molecular‐inorganic‐chemistry.html
| |
Collapse
|
19
|
Lázaro G, Fernández-Alvarez FJ, Munárriz J, Polo V, Iglesias M, Pérez-Torrente JJ, Oro LA. Orthometallation of N-substituents at the NHC ligand of [Rh(Cl)(COD)(NHC)] complexes: its role in the catalytic hydrosilylation of ketones. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01556h] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Orthometallation of one N-substituent of the NHC ligand in Rh-NHC species affords hydrido-bridged binuclear rhodium(iii) complexes which have proven to be resting states in catalytic ketone hydrosilylation reactions.
Collapse
Affiliation(s)
- Guillermo Lázaro
- Departamento de Química Inorgánica – Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- Universidad de Zaragoza-CSIC
- Facultad de Ciencias
- 50009 Zaragoza
- Spain
| | - Francisco J. Fernández-Alvarez
- Departamento de Química Inorgánica – Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- Universidad de Zaragoza-CSIC
- Facultad de Ciencias
- 50009 Zaragoza
- Spain
| | - Julen Munárriz
- Departamento de Química Física – Instituto de Biocomputación y Física de Sistemas Complejos (BIFI)
- Universidad de Zaragoza
- Facultad de Ciencias
- 50009 Zaragoza
- Spain
| | - Víctor Polo
- Departamento de Química Física – Instituto de Biocomputación y Física de Sistemas Complejos (BIFI)
- Universidad de Zaragoza
- Facultad de Ciencias
- 50009 Zaragoza
- Spain
| | - Manuel Iglesias
- Departamento de Química Inorgánica – Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- Universidad de Zaragoza-CSIC
- Facultad de Ciencias
- 50009 Zaragoza
- Spain
| | - Jesús J. Pérez-Torrente
- Departamento de Química Inorgánica – Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- Universidad de Zaragoza-CSIC
- Facultad de Ciencias
- 50009 Zaragoza
- Spain
| | - Luis A. Oro
- Departamento de Química Inorgánica – Instituto de Síntesis Química y Catálisis Homogénea (ISQCH)
- Universidad de Zaragoza-CSIC
- Facultad de Ciencias
- 50009 Zaragoza
- Spain
| |
Collapse
|
20
|
Kier BL, Andersen NH. Captides: rigid junctions between beta sheets and small molecules. J Pept Sci 2014; 20:704-15. [PMID: 24909552 DOI: 10.1002/psc.2657] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2014] [Revised: 04/29/2014] [Accepted: 04/30/2014] [Indexed: 12/15/2022]
Abstract
An extensive series of covalently linked small molecule-peptide adducts based on a terminally capped-beta hairpin motif is reported. The constructs can be prepared by standard solid-phase Fmoc chemistry with one to four peptide chains linked to small molecule hubs bearing carboxylic acid moieties. The key feature of interest is the precise, buried environment of the small molecule, and its rigid orientation relative to one or more short but fully structured peptide chain(s). Most of this study employs a minimalist nine residue 'captide', a capped β-turn, but we illustrate general applicability to peptides which can terminate in a beta strand. The non-peptide portion of these adducts can include nearly any molecule bearing one or more carboxylic acid groups. Fold-dependent rigidity sets this strategy apart from the currently available bioconjugation methods, which typically engender significant flexibility between peptide and tag. Applications to catalyst enhancement, drug design, higher-order assembly, and FRET calibration rulers are discussed.
Collapse
Affiliation(s)
- Brandon L Kier
- University of Washington - Chemistry, Bagley Hall Room 205 Box 351700, Seattle, WA, 98195-1700, USA
| | | |
Collapse
|
21
|
Bos J, Roelfes G. Artificial metalloenzymes for enantioselective catalysis. Curr Opin Chem Biol 2014; 19:135-43. [DOI: 10.1016/j.cbpa.2014.02.002] [Citation(s) in RCA: 105] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2013] [Revised: 01/29/2014] [Accepted: 02/03/2014] [Indexed: 01/14/2023]
|
22
|
Cassani MC, Brucka MA, Femoni C, Mancinelli M, Mazzanti A, Mazzoni R, Solinas G. N-Heterocyclic carbene rhodium(i) complexes containing an axis of chirality: dynamics and catalysis. NEW J CHEM 2014. [DOI: 10.1039/c3nj01620j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel rhodium(i) complexes [RhCl(NBD)(NHC)] [NHC = 1-benzyl-3-R-imidazolin-2-ylidene; R = Me, Bz, Tr, tBu]: determination of the rotation barriers about the Rh-carbene and catalytic activity in the hydrosilylation of terminal alkynes.
Collapse
Affiliation(s)
| | - Marta Anna Brucka
- Dipartimento di Chimica Industriale “Toso-Montanari”
- I-40136 Bologna, Italy
| | - Cristina Femoni
- Dipartimento di Chimica Industriale “Toso-Montanari”
- I-40136 Bologna, Italy
| | - Michele Mancinelli
- Dipartimento di Chimica Industriale “Toso-Montanari”
- I-40136 Bologna, Italy
| | - Andrea Mazzanti
- Dipartimento di Chimica Industriale “Toso-Montanari”
- I-40136 Bologna, Italy
| | - Rita Mazzoni
- Dipartimento di Chimica Industriale “Toso-Montanari”
- I-40136 Bologna, Italy
| | - Gavino Solinas
- Dipartimento di Chimica Industriale “Toso-Montanari”
- I-40136 Bologna, Italy
| |
Collapse
|
23
|
Canseco-Gonzalez D, Petronilho A, Mueller-Bunz H, Ohmatsu K, Ooi T, Albrecht M. Carbene Transfer from Triazolylidene Gold Complexes as a Potent Strategy for Inducing High Catalytic Activity. J Am Chem Soc 2013; 135:13193-203. [DOI: 10.1021/ja406999p] [Citation(s) in RCA: 117] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Daniel Canseco-Gonzalez
- School of Chemistry and Chemical
Biology, University College Dublin, Belfield,
Dublin 4, Ireland
| | - Ana Petronilho
- School of Chemistry and Chemical
Biology, University College Dublin, Belfield,
Dublin 4, Ireland
| | - Helge Mueller-Bunz
- School of Chemistry and Chemical
Biology, University College Dublin, Belfield,
Dublin 4, Ireland
| | - Kohsuke Ohmatsu
- Department
of Applied Chemistry,
Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
- Institute of Transformative Bio-Molecules
(WPI-ITbM), Nagoya University, Nagoya 464-8602,
Japan
| | - Takashi Ooi
- Department
of Applied Chemistry,
Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan
- Institute of Transformative Bio-Molecules
(WPI-ITbM), Nagoya University, Nagoya 464-8602,
Japan
| | - Martin Albrecht
- School of Chemistry and Chemical
Biology, University College Dublin, Belfield,
Dublin 4, Ireland
| |
Collapse
|