1
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Hemu X, El Sahili A, Hu S, Zhang X, Serra A, Goh BC, Darwis DA, Chen MW, Sze SK, Liu CF, Lescar J, Tam JP. Turning an Asparaginyl Endopeptidase into a Peptide Ligase. ACS Catal 2020. [DOI: 10.1021/acscatal.0c02078] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Xinya Hemu
- Synzymes and Natural Products Center (SYNC), School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
| | - Abbas El Sahili
- Synzymes and Natural Products Center (SYNC), School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
- NTU Institute of Structural Biology, Nanyang Technological University, Experimental Medicine Building, 59 Nanyang Drive, Singapore 636921
| | - Side Hu
- Synzymes and Natural Products Center (SYNC), School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
- NTU Institute of Structural Biology, Nanyang Technological University, Experimental Medicine Building, 59 Nanyang Drive, Singapore 636921
| | - Xiaohong Zhang
- Synzymes and Natural Products Center (SYNC), School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
| | - Aida Serra
- Synzymes and Natural Products Center (SYNC), School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
- IMDEA Food Research Institute, Carr. de Canto Blanco, 8, Madrid 28049, Spain
| | - Boon Chong Goh
- NTU Institute of Structural Biology, Nanyang Technological University, Experimental Medicine Building, 59 Nanyang Drive, Singapore 636921
- Antimicrobial Resistance Interdisciplinary Research Group, SMART, 1 CREATE Way, Singapore 138602
| | - Dina A. Darwis
- Synzymes and Natural Products Center (SYNC), School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
- Synthetic Biology for Clinical and Technological Innovation, National University of Singapore, 14 Medical Drive, Singapore 117599
| | - Ming Wei Chen
- Synzymes and Natural Products Center (SYNC), School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
| | - Siu Kwan Sze
- Synzymes and Natural Products Center (SYNC), School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
| | - Chuan-fa Liu
- Synzymes and Natural Products Center (SYNC), School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
| | - Julien Lescar
- Synzymes and Natural Products Center (SYNC), School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
- NTU Institute of Structural Biology, Nanyang Technological University, Experimental Medicine Building, 59 Nanyang Drive, Singapore 636921
| | - James P. Tam
- Synzymes and Natural Products Center (SYNC), School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
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2
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Yang F, Totsingan F, Dolan E, Khare SD, Gross RA. Protease-Catalyzed l-Aspartate Oligomerization: Substrate Selectivity and Computational Modeling. ACS OMEGA 2020; 5:4403-4414. [PMID: 32175488 PMCID: PMC7066554 DOI: 10.1021/acsomega.9b03290] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 12/11/2019] [Indexed: 05/20/2023]
Abstract
Poly(aspartic acid) (PAA) is a biodegradable water-soluble anionic polymer that can potentially replace poly(acrylic acid) for industrial applications and has shown promise for regenerative medicine and drug delivery. This paper describes an efficient and sustainable route that uses protease catalysis to convert l-aspartate diethyl ester (Et2-Asp) to oligo(β-ethyl-α-aspartate), oligo(β-Et-α-Asp). Comparative studies of protease activity for oligo(β-Et-α-Asp) synthesis revealed α-chymotrypsin to be the most efficient. Papain, which is highly active for l-glutamic acid diethyl ester (Et2-Glu) oligomerization, is inactive for Et2-Asp oligomerization. The assignment of α-linkages between aspartate repeat units formed by α-chymotrypsin catalysis is based on nuclear magnetic resonance (NMR) trifluoacetic acid titration, circular dichroism, and NMR structural analysis. The influence of reaction conditions (pH, temperature, reaction time, and buffer/monomer/α-chymotrypsin concentrations) on oligopeptide yield and average degree of polymerization (DPavg) was determined. Under preferred reaction conditions (pH 8.5, 40 °C, 0.5 M Et2-Asp, 3 mg/mL α-chymotrypsin), Et2-Asp oligomerizations reached maximum oligo(β-Et-α-Asp) yields of ∼60% with a DPavg of ∼12 (M n 1762) in just 5 min. Computational modeling using Rosetta software gave relative energies of substrate docking to papain and α-chymotrypsin active sites. The substrate preference calculated by Rosetta modeling of α-chymotrypsin and papain for Et2-Asp and Et2-Glu oligomerizations, respectively, is consistent with experimental results.
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Affiliation(s)
- Fan Yang
- Center for Biotechnology
and Interdisciplinary Studies (CBIS), Rensselaer
Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United
States
| | - Filbert Totsingan
- Center for Biotechnology
and Interdisciplinary Studies (CBIS), Rensselaer
Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United
States
| | - Elliott Dolan
- Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Sagar D. Khare
- Chemistry and Chemical Biology, Rutgers University, 610 Taylor Road, Piscataway, New Jersey 08854, United States
| | - Richard A. Gross
- Center for Biotechnology
and Interdisciplinary Studies (CBIS), Rensselaer
Polytechnic Institute, 1623 15th Street, Troy, New York 12180, United
States
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3
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Aguirre C, Condado-Morales I, Olguin LF, Costas M. Isothermal titration calorimetry determination of individual rate constants of trypsin catalytic activity. Anal Biochem 2015; 479:18-27. [PMID: 25823683 DOI: 10.1016/j.ab.2015.03.014] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Revised: 03/02/2015] [Accepted: 03/11/2015] [Indexed: 11/25/2022]
Abstract
Determination of individual rate constants for enzyme-catalyzed reactions is central to the understanding of their mechanism of action and is commonly obtained by stopped-flow kinetic experiments. However, most natural substrates either do not fluoresce/absorb or lack a significant change in their spectra while reacting and, therefore, are frequently chemically modified to render adequate molecules for their spectroscopic detection. Here, isothermal titration calorimetry (ITC) was used to obtain Michaelis-Menten plots for the trypsin-catalyzed hydrolysis of several substrates at different temperatures (278-318K): four spectrophotometrically blind lysine and arginine N-free esters, one N-substituted arginine ester, and one amide. A global fitting of these data provided the individual rate constants and activation energies for the acylation and deacylation reactions, and the ratio of the formation and dissociation rates of the enzyme-substrate complex, leading also to the corresponding free energies of activation. The results indicate that for lysine and arginine N-free esters deacylation is the rate-limiting step, but for the N-substituted ester and the amide acylation is the slowest step. It is shown that ITC is able to produce quality kinetic data and is particularly well suited for those enzymatic reactions that cannot be measured by absorption or fluorescence spectroscopy.
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Affiliation(s)
- César Aguirre
- Laboratorio de Biofisicoquímica, Departamento de Fisicoquímica, Facultad de Química, Universidad Nacional Autónoma de México, México, D.F. 04510, Mexico
| | - Itzel Condado-Morales
- Laboratorio de Biofisicoquímica, Departamento de Fisicoquímica, Facultad de Química, Universidad Nacional Autónoma de México, México, D.F. 04510, Mexico
| | - Luis F Olguin
- Laboratorio de Biofisicoquímica, Departamento de Fisicoquímica, Facultad de Química, Universidad Nacional Autónoma de México, México, D.F. 04510, Mexico.
| | - Miguel Costas
- Laboratorio de Biofisicoquímica, Departamento de Fisicoquímica, Facultad de Química, Universidad Nacional Autónoma de México, México, D.F. 04510, Mexico.
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4
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Fard MA, Khalili Najafabadi B, Hesari M, Workentin MS, Corrigan JF. New polydentate trimethylsilyl chalcogenide reagents for the assembly of polyferrocenyl architectures. Chemistry 2014; 20:7037-47. [PMID: 24806828 DOI: 10.1002/chem.201400185] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2014] [Indexed: 01/18/2023]
Abstract
A series of polychalcogenotrimethylsilane complexes Ar(CH2ESiMe3)n, (Ar = aryl; E = S, Se; n = 2, 3, and 4) can be prepared from the corresponding polyorganobromide and M[ESiMe3] (M = Na, Li). These represent the first examples of the incorporation of such a large number of reactive -ESiMe3 moieties onto an organic molecular framework. They are shown to be convenient reagents for the preparation of the polyferrocenylseleno- and thioesters from ferrocenoyl chloride. The synthesis, structures, and spectroscopic properties of the new silyl chalcogen complexes 1,4-(Me3SiECH2)2(C6Me4) (E = S, 1; E = Se, 2), 1,3,5-(Me3SiECH2)3(C6Me3) (E = S, 3; E = Se, 4) and 1,2,4,5-(Me3SiECH2)4(C6H2) (E = S, 5; E = Se, 6) and the polyferrocenyl chalcogenoesters [1,4-{FcC(O)ECH2}2(C6Me4)] (E = S, 7; E = Se, 8), [1,3,5-{FcC(O)ECH2}3(C6Me3)] (E = S, 9; E = Se, 10) and [1,2,4,5-{FcC(O)ECH2}4(C6H2)] (E = S, 11 illustrated; E = Se, 12) are reported. The new polysilylated reagents and polyferrocenyl chalcogenoesters have been characterized by multinuclear NMR spectroscopy ((1)H, (13)C, (77)Se), electrospray ionization mass spectrometry and, for complexes 1, 2, 3, 4, 7, 8, and 11, single-crystal X-ray diffraction. The cyclic voltammograms of complexes 7-11 are presented.
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Affiliation(s)
- Mahmood Azizpoor Fard
- Department of Chemistry, The University of Western Ontario, London, ON, N6A 5B7 (Canada), Fax: (+1)519-661-3022
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5
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Pan Y, Ye M, Zheng H, Cheng K, Sun Z, Liu F, Liu J, Wang K, Qin H, Zou H. Trypsin-Catalyzed N-Terminal Labeling of Peptides with Stable Isotope-Coded Affinity Tags for Proteome Analysis. Anal Chem 2014; 86:1170-7. [DOI: 10.1021/ac403060d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yanbo Pan
- Key
Laboratory of Separation Sciences for Analytical Chemistry, National
Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Mingliang Ye
- Key
Laboratory of Separation Sciences for Analytical Chemistry, National
Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Hao Zheng
- Key
Laboratory of Separation Sciences for Analytical Chemistry, National
Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Kai Cheng
- Key
Laboratory of Separation Sciences for Analytical Chemistry, National
Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhen Sun
- Key
Laboratory of Separation Sciences for Analytical Chemistry, National
Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fangjie Liu
- Key
Laboratory of Separation Sciences for Analytical Chemistry, National
Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jing Liu
- Key
Laboratory of Separation Sciences for Analytical Chemistry, National
Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Keyun Wang
- Key
Laboratory of Separation Sciences for Analytical Chemistry, National
Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Hongqiang Qin
- Key
Laboratory of Separation Sciences for Analytical Chemistry, National
Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
| | - Hanfa Zou
- Key
Laboratory of Separation Sciences for Analytical Chemistry, National
Chromatographic Research and Analysis Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian 116023, China
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6
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Chemical synthesis of proteins using N-sulfanylethylanilide peptides, based on N-S acyl transfer chemistry. Top Curr Chem (Cham) 2014; 363:33-56. [PMID: 25467538 DOI: 10.1007/128_2014_586] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Native chemical ligation (NCL), which features the use of peptide thioesters, is among the most reliable ligation protocols in chemical protein synthesis. Thioesters have conventionally been synthesized using tert-butyloxycarbonyl (Boc)-based solid-phase peptide synthesis (SPPS); however, the increasing use of 9-fluorenylmethyloxycarbonyl (Fmoc) SPPS requires an efficient preparative protocol for thioesters which is fully compatible with Fmoc chemistry. We have addressed this issue by mimicking the naturally occurring thioester-forming step seen in intein-mediated protein splicing of the intein-extein system, using an appropriate chemical device to induce N-S acyl transfer reaction, avoiding the problems associated with Fmoc strategies. We have developed N-sulfanylethylanilide (SEAlide) peptides, which can be synthesized by standard Fmoc SPPS and converted to the corresponding thioesters through treatment under acidic conditions. Extensive examination of SEAlide peptides showed that the amide-type SEAlide peptides can be directly and efficiently involved in NCL via thioester species in the presence of phosphate salts, even under neutral conditions. The presence or absence of phosphate salts provided kinetically controllable chemoselectivity in NCL for SEAlide peptides. This allowed SEAlide peptides to be used in both one-pot/N-to-C-directed sequential NCL under kinetically controlled conditions, and the convergent coupling of large peptide fragments, which facilitated the chemical synthesis of proteins over about 100 residues. The use of SEAlide peptides, enabling sequential NCL operated under kinetically controlled conditions, and the convergent coupling, were used for the total chemical synthesis of a 162-residue monoglycosylated GM2-activator protein (GM2AP) analog.
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7
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Wasmuth A, Ludwig C, Mootz HD. Structure-activity studies on the upstream splice junction of a semisynthetic intein. Bioorg Med Chem 2013; 21:3495-503. [PMID: 23618706 DOI: 10.1016/j.bmc.2013.03.065] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 03/24/2013] [Accepted: 03/26/2013] [Indexed: 01/30/2023]
Abstract
Protein trans-splicing by split inteins holds great potential for the chemical modification and semisynthesis of proteins. However, the structural requirements of the extein sequences immediately flanking the intein are only poorly understood. This knowledge is of particular importance for protein labeling, when synthetic moieties are to be attached to the protein of interest as seamlessly as possible. Using the semisynthetic Ssp DnaB intein both in form of its wild-type sequence and its evolved M86 mutant, we systematically varied the sequence upstream of the short synthetic Int(N) fragment using both proteinogenic amino acids and unnatural building blocks. We could show for the wild-type variant that the native N-extein sequence could be reduced to the glycine residue at the (-1) position directly flanking the intein without significant loss of activity. The glycine at this position is strongly preferred over building blocks containing a phenyl group or extended alkyl chain adjacent to the scissile amide bond of the N-terminal splice junction. Despite their negative effects on the splicing yields, these unnatural substrates were well processed in the N-S acyl shift to form the respective thioesters and did not result in an increased decoupling of the asparagine cyclization step at the C-terminal splicing junction. Therefore, the transesterification step appeared to be the bottleneck of the protein splicing pathway. The fluorophore 7-hydroxycoumarinyl-4-acetic acid as a minimal N-extein was efficiently ligated to the model protein, in particular with the M86 mutant, probably because of its higher resemblance to glycine with an aliphatic c-α carbon atom at the (-1) position. This finding indicates a way for the virtually traceless labeling of proteins without inserting extra flanking residues. Due to its overall higher activity, the M86 mutant appears most promising for many protein labeling and chemical modification schemes using the split intein approach.
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Affiliation(s)
- Alexandra Wasmuth
- Institute of Biochemistry, University of Muenster, Wilhelm-Klemm-Str. 2, 48149 Münster, Germany
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8
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Schröder H, Strohmeier GA, Leypold M, Nuijens T, Quaedflieg PJLM, Breinbauer R. Racemization-Free Chemoenzymatic Peptide Synthesis Enabled by the Ruthenium-Catalyzed Synthesis of Peptide Enol EstersviaAlkyne-Addition and Subsequent Conversion Using Alcalase-Cross-Linked Enzyme Aggregates. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201200423] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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9
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Nuijens T, Schepers AHM, Cusan C, Kruijtzer JAW, Rijkers DTS, Liskamp RMJ, Quaedflieg PJLM. Enzymatic Fragment Condensation of Side Chain-Protected Peptides using Subtilisin A in Anhydrous Organic Solvents: A General Strategy for Industrial Peptide Synthesis. Adv Synth Catal 2013. [DOI: 10.1002/adsc.201200694] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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10
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Otaka A, Sato K, Ding H, Shigenaga A. One-Pot/Sequential Native Chemical Ligation UsingN-Sulfanylethylanilide Peptide. CHEM REC 2012; 12:479-90. [DOI: 10.1002/tcr.201200007] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Indexed: 01/05/2023]
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11
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Sakamoto K, Sato K, Shigenaga A, Tsuji K, Tsuda S, Hibino H, Nishiuchi Y, Otaka A. Synthetic Procedure for N-Fmoc Amino Acyl-N-Sulfanylethylaniline Linker as Crypto-Peptide Thioester Precursor with Application to Native Chemical Ligation. J Org Chem 2012; 77:6948-58. [DOI: 10.1021/jo3011107] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Ken Sakamoto
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, Tokushima 770-8505, Japan
| | - Kohei Sato
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, Tokushima 770-8505, Japan
| | - Akira Shigenaga
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, Tokushima 770-8505, Japan
| | - Kohei Tsuji
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, Tokushima 770-8505, Japan
| | - Shugo Tsuda
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, Tokushima 770-8505, Japan
- Saito Research Center, Peptide Institute, Inc., 7-2-9 Saito Ibaraki, Osaka
567-0085, Japan
| | - Hajime Hibino
- Saito Research Center, Peptide Institute, Inc., 7-2-9 Saito Ibaraki, Osaka
567-0085, Japan
| | - Yuji Nishiuchi
- Saito Research Center, Peptide Institute, Inc., 7-2-9 Saito Ibaraki, Osaka
567-0085, Japan
- Department
of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan
| | - Akira Otaka
- Institute
of Health Biosciences and Graduate School of Pharmaceutical Sciences, The University of Tokushima, Tokushima 770-8505, Japan
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12
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de Beer RJAC, Nuijens T, Wiermans L, Quaedflieg PJLM, Rutjes FPJT. Improving the carboxyamidomethyl ester for subtilisin A-catalysed peptide synthesis. Org Biomol Chem 2012; 10:6767-75. [DOI: 10.1039/c2ob25662b] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Wagner AM, Fegley MW, Warner JB, Grindley CLJ, Marotta NP, Petersson EJ. N-terminal protein modification using simple aminoacyl transferase substrates. J Am Chem Soc 2011; 133:15139-47. [PMID: 21894909 PMCID: PMC3189496 DOI: 10.1021/ja2055098] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Methods for synthetically manipulating protein structure enable greater flexibility in the study of protein function. Previous characterization of the Escherichia coli aminoacyl tRNA transferase (AaT) has shown that it can modify the N-terminus of a protein with an amino acid from a tRNA or a synthetic oligonucleotide donor. Here, we demonstrate that AaT can efficiently use a minimal adenosine substrate, which can be synthesized in one to two steps from readily available starting materials. We have characterized the enzymatic activity of AaT with aminoacyl adenosyl donors and found that reaction products do not inhibit AaT. The use of adenosyl donors removes the substrate limitations imposed by the use of synthetases for tRNA charging and avoids the complex synthesis of an oligonucleotide donor. Thus, our AaT donors increase the potential substrate scope and reaction scale for N-terminal protein modification under conditions that maintain folding.
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Affiliation(s)
- Anne M. Wagner
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323 USA
| | - Mark W. Fegley
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323 USA
| | - John B. Warner
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323 USA
| | - Christina L. J. Grindley
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323 USA
| | | | - E. James Petersson
- Department of Chemistry, University of Pennsylvania, 231 South 34th Street, Philadelphia, Pennsylvania 19104-6323 USA
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14
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Mende F, Seitz O. 9-Fluorenylmethyloxycarbonyl-basierte Festphasensynthese von α-Peptidthioestern. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201005180] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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15
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Mende F, Seitz O. 9-Fluorenylmethoxycarbonyl-Based Solid-Phase Synthesis of Peptide α-Thioesters. Angew Chem Int Ed Engl 2010; 50:1232-40. [DOI: 10.1002/anie.201005180] [Citation(s) in RCA: 170] [Impact Index Per Article: 12.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2010] [Indexed: 01/26/2023]
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16
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17
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Celik I, Abdel-Fattah AA. Convenient synthesis of C-terminal di- and tri-peptide amides from N-protected dipeptidoylbenzotriazoles. Tetrahedron 2009. [DOI: 10.1016/j.tet.2009.02.070] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Ludwig C, Schwarzer D, Zettler J, Garbe D, Janning P, Czeslik C, Mootz HD. Semisynthesis of proteins using split inteins. Methods Enzymol 2009; 462:77-96. [PMID: 19632470 DOI: 10.1016/s0076-6879(09)62004-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Protein splicing is an autocatalytic reaction in which an internal protein domain, the intein, excises itself out of a precursor protein and concomitantly links the two flanking sequences, the exteins, with a native peptide bond. In split inteins, the intein domain is divided into two parts that undergo fragment association followed by protein splicing in trans. Thus, the extein sequences joined in the process originate from two separate molecules. The specificity and sequence promiscuity of split inteins make this approach a generally useful tool for the preparation of semisynthetic proteins. To this end, the recombinant part of the protein of interest is expressed as a fusion protein with one split intein fragment. The synthetic part is extended by the other, complementary fragment of the split intein. A recently introduced split intein, in which the N-terminal fragment consists of only 11 native amino acids, has greatly facilitated preparation of the synthetic part by solid-phase peptide synthesis. This intein enables the chemoenzymatic synthesis of N-terminally modified semisynthetic proteins. The reaction can be performed under native conditions and at protein and peptide concentrations in the low micromolar range. In contrast to chemical ligation procedures like native chemical ligation and expressed protein ligation, the incorporation of a thioester group and an aminoterminal cysteine into the two polypeptides to be linked is not necessary. We discuss properties of useful inteins, design rules for split inteins and intein insertion sites and we describe selected examples in detail.
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Affiliation(s)
- Christina Ludwig
- Fakultät Chemie - Chemische Biologie, Technische Universität Dortmund, Dortmund, Germany
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19
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Hackenberger C, Schwarzer D. Chemoselektive Ligations- und Modifikationsstrategien für Peptide und Proteine. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200801313] [Citation(s) in RCA: 204] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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20
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Hackenberger C, Schwarzer D. Chemoselective Ligation and Modification Strategies for Peptides and Proteins. Angew Chem Int Ed Engl 2008; 47:10030-74. [DOI: 10.1002/anie.200801313] [Citation(s) in RCA: 651] [Impact Index Per Article: 40.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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21
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Wehofsky N, Pech A, Liebscher S, Schmidt S, Komeda H, Asano Y, Bordusa F. D-amino acid specific proteases and native all-L-proteins: a convenient combination for semisynthesis. Angew Chem Int Ed Engl 2008; 47:5456-60. [PMID: 18551688 DOI: 10.1002/anie.200800340] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Nicole Wehofsky
- Max-Planck Research Unit for Enzymology of Protein Folding, 06120 Halle/Saale, Germany
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22
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Wehofsky N, Pech A, Liebscher S, Schmidt S, Komeda H, Asano Y, Bordusa F. D‐Aminosäure‐spezifische Proteasen und native All‐L‐Proteine: eine zweckmäßige Kombination für die Semisynthese. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200800340] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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23
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Tan XH, Wirjo A, Liu CF. An enzymatic approach to the synthesis of peptide thioesters: mechanism and scope. Chembiochem 2007; 8:1512-5. [PMID: 17647206 DOI: 10.1002/cbic.200700284] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Xiao-Hong Tan
- Division of Chemical Biology and Biotechnology, School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551, Singapore
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24
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Corbett PT, Leclaire J, Vial L, West KR, Wietor JL, Sanders JKM, Otto S. Dynamic combinatorial chemistry. Chem Rev 2007; 106:3652-711. [PMID: 16967917 DOI: 10.1021/cr020452p] [Citation(s) in RCA: 1497] [Impact Index Per Article: 88.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Peter T Corbett
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, United Kingdom
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25
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Ludwig C, Pfeiff M, Linne U, Mootz HD. Ligation of a synthetic peptide to the N terminus of a recombinant protein using semisynthetic protein trans-splicing. Angew Chem Int Ed Engl 2007; 45:5218-21. [PMID: 16823791 DOI: 10.1002/anie.200600570] [Citation(s) in RCA: 83] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Christina Ludwig
- Philipps-Universität Marburg, Fachbereich Chemie/Biochemie, Hans-Meerwein-Strasse, 35032 Marburg, Germany
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26
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Ludwig C, Pfeiff M, Linne U, Mootz HD. Ligation eines synthetischen Peptids an den N-Terminus eines rekombinanten Proteins durch semisynthetischestrans-Proteinspleißen. Angew Chem Int Ed Engl 2006. [DOI: 10.1002/ange.200600570] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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27
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Durek T, Becker CFW. Protein semi-synthesis: New proteins for functional and structural studies. ACTA ACUST UNITED AC 2005; 22:153-72. [PMID: 16188500 DOI: 10.1016/j.bioeng.2005.07.004] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2005] [Revised: 07/26/2005] [Accepted: 07/27/2005] [Indexed: 12/19/2022]
Abstract
Our ability to alter and control the structure and function of biomolecules, and of proteins in particular, will be of utmost importance in order to understand their respective biological roles in complex systems such as living organisms. This challenge has prompted the development of powerful modern techniques in the fields of molecular biology, physical biochemistry and chemical biology. These fields complement each other and their successful combination has provided unique insights into protein structure and function at the level of isolated molecules, cells and organisms. Chemistry is without doubt most suited for introducing subtle changes into biomolecules down to the atomic level, but often struggles when it comes to large targets, such as proteins. In this review, we attempt to give an overview of modern and broadly applicable techniques that permit chemical synthesis to be applied to complex protein targets in order to gain control over their structure and function. As will be demonstrated, these approaches offer unique possibilities in our efforts to understand the molecular basis of protein functioning in vitro and in vivo. We will discuss modern synthetic reactions that can be applied to proteins and give examples of recent highlights. Another focus of this review will be the application of inteins as versatile protein engineering tools.
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Affiliation(s)
- Thomas Durek
- Institute for Biophysical Dynamics, University of Chicago, Chicago, IL 60637, USA
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28
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Abstract
We demonstrate that proteases can catalyze the ligation of peptidomimetic oligomers. The enzyme clostripain was used to facilitate the native ligation of N-substituted glycine oligomers, or peptoids. In addition to mediating the efficient condensation of two peptoid fragments, iterative ligation events were also performed, giving rise to concatenation products with molecular weights up to 20 kDa. Efficient ligation of peptoid foldamers may enable the chemical synthesis of biomimetic macromolecules capable of forming complex tertiary structures.
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Affiliation(s)
- Barney Yoo
- Department of Chemistry, New York University, 100 Washington Square East, New York, New York 10003-6688, USA
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29
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Heidler P, Link A. N-Acyl-N-alkyl-sulfonamide anchors derived from Kenner’s safety-catch linker: powerful tools in bioorganic and medicinal chemistry. Bioorg Med Chem 2005; 13:585-99. [PMID: 15653327 DOI: 10.1016/j.bmc.2004.10.045] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2004] [Accepted: 10/18/2004] [Indexed: 11/16/2022]
Abstract
In 1971 Kenner et al. introduced the safety-catch principle into solid phase peptide synthesis. Thus two contradicting needs were addressed. On the one hand, sufficient stability of the linker substrate bond to impede hydrolysis or similar side reactions, on the other hand mild chemical conditions allowing for unscathed liberation of the precious products. Over the years this linker type emerged in several different chemical disciplines and nowadays it presents a useful and broadly applicable tool. Recent advancements and applications based on Kenner's safety-catch linker are reviewed.
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Affiliation(s)
- Philipp Heidler
- Faculty of Pharmacy, Philipps-University Marburg, Marbacher Weg 6, D-35032, Germany
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30
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Günther R, Elsner C, Schmidt S, Hofmann HJ, Bordusa F. On the rational design of substrate mimetics: the function of docking approaches for the prediction of protease specificities. Org Biomol Chem 2004; 2:1442-6. [PMID: 15136799 DOI: 10.1039/b316641d] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The behaviour of substrate mimetics in mediating the acceptance of nonspecific acyl moieties by proteases has been investigated as a direct function of their site-specific ester leaving groups. In this contribution we report on a computational approach to rationalise this interplay and to predict the power of a potential ester moiety to act as a suitable substrate mimetic for a given enzyme by means of an automated docking procedure. Investigations with seven distinct substrate mimetics and two proteases, subtilisin and chymotrypsin, show a clear correlation between the theoretically calculated binding energies DeltaE and the specificity constants k(cat)KM(-1) obtained from parallel hydrolysis kinetic studies. These results prove the general function of the docking approach as a rational model not only in predicting the general acceptance of a substrate mimetic in a qualitative manner, but also to provide reliable information on its individual specificity towards proteases.
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Affiliation(s)
- Robert Günther
- University of Leipzig, Faculty of Biosciences, Pharmacy and Psychology, Institute of Biochemistry, Bruderstr. 34, D-04103 Leipzig, Germany.
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