1
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Wu H, Tan Y, Ngai WL, Li X. Total synthesis of interleukin-2 via a tunable backbone modification strategy. Chem Sci 2023; 14:1582-1589. [PMID: 36794182 PMCID: PMC9906654 DOI: 10.1039/d2sc05660g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2022] [Accepted: 01/06/2023] [Indexed: 01/08/2023] Open
Abstract
Chemical synthesis of hydrophobic proteins presents a formidable task as they are often difficultly achieved via peptide synthesis, purification, and peptide ligation. Thus, peptide solubilizing strategies are needed to integrate with peptide ligation to achieve protein total synthesis. Herein, we report a tunable backbone modification strategy, taking advantage of the tunable stability of the Cys/Pen ligation intermediate, which allows for readily introducing a solubilizing tag for both peptide purification and ligation processes. The effectiveness of this strategy was demonstrated by the chemical synthesis of interleukin-2.
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Affiliation(s)
- Hongxiang Wu
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, The University of Hong Kong Hong Kong SAR P. R. China
| | - Yi Tan
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, The University of Hong Kong Hong Kong SAR P. R. China
| | - Wai Lok Ngai
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, The University of Hong Kong Hong Kong SAR P. R. China
| | - Xuechen Li
- Department of Chemistry, State Key Laboratory of Synthetic Chemistry, The University of Hong Kong Hong Kong SAR P. R. China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology Qingdao 266237 P. R. China
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2
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Kulkarni SS, Watson EE, Maxwell JWC, Niederacher G, Johansen‐Leete J, Huhmann S, Mukherjee S, Norman AR, Kriegesmann J, Becker CFW, Payne RJ. Expressed Protein Selenoester Ligation. ANGEWANDTE CHEMIE (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 134:e202200163. [PMID: 38505698 PMCID: PMC10947028 DOI: 10.1002/ange.202200163] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Indexed: 03/21/2024]
Abstract
Herein, we describe the development and application of a novel expressed protein selenoester ligation (EPSL) methodology for the one-pot semi-synthesis of modified proteins. EPSL harnesses the rapid kinetics of ligation reactions between modified synthetic selenopeptides and protein aryl selenoesters (generated from expressed intein fusion precursors) followed by in situ chemoselective deselenization to afford target proteins at concentrations that preclude the use of traditional ligation methods. The utility of the EPSL technology is showcased through the efficient semi-synthesis of ubiquitinated polypeptides, lipidated analogues of the membrane-associated GTPase YPT6, and site-specifically phosphorylated variants of the oligomeric chaperone protein Hsp27 at high dilution.
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Affiliation(s)
- Sameer S. Kulkarni
- School of Chemistry and Australian Research Council Centre of Excellence for Innovations in Peptide and Protein ScienceThe University of SydneySydneyNSW 2006Australia
| | - Emma E. Watson
- School of Chemistry and Australian Research Council Centre of Excellence for Innovations in Peptide and Protein ScienceThe University of SydneySydneyNSW 2006Australia
| | - Joshua W. C. Maxwell
- School of Chemistry and Australian Research Council Centre of Excellence for Innovations in Peptide and Protein ScienceThe University of SydneySydneyNSW 2006Australia
| | - Gerhard Niederacher
- Faculty of Chemistry, Institute of Biological ChemistryUniversity of ViennaViennaAustria
| | - Jason Johansen‐Leete
- School of Chemistry and Australian Research Council Centre of Excellence for Innovations in Peptide and Protein ScienceThe University of SydneySydneyNSW 2006Australia
| | - Susanne Huhmann
- Faculty of Chemistry, Institute of Biological ChemistryUniversity of ViennaViennaAustria
| | - Somnath Mukherjee
- Faculty of Chemistry, Institute of Biological ChemistryUniversity of ViennaViennaAustria
| | - Alexander R. Norman
- School of Chemistry and Australian Research Council Centre of Excellence for Innovations in Peptide and Protein ScienceThe University of SydneySydneyNSW 2006Australia
| | - Julia Kriegesmann
- Faculty of Chemistry, Institute of Biological ChemistryUniversity of ViennaViennaAustria
| | - Christian F. W. Becker
- Faculty of Chemistry, Institute of Biological ChemistryUniversity of ViennaViennaAustria
| | - Richard J. Payne
- School of Chemistry and Australian Research Council Centre of Excellence for Innovations in Peptide and Protein ScienceThe University of SydneySydneyNSW 2006Australia
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3
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Kulkarni SS, Watson EE, Maxwell JWC, Niederacher G, Johansen-Leete J, Huhmann S, Mukherjee S, Norman AR, Kriegesmann J, Becker CFW, Payne RJ. Expressed Protein Selenoester Ligation. Angew Chem Int Ed Engl 2022; 61:e202200163. [PMID: 35194928 PMCID: PMC9314092 DOI: 10.1002/anie.202200163] [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: 01/05/2022] [Indexed: 12/23/2022]
Abstract
Herein, we describe the development and application of a novel expressed protein selenoester ligation (EPSL) methodology for the one‐pot semi‐synthesis of modified proteins. EPSL harnesses the rapid kinetics of ligation reactions between modified synthetic selenopeptides and protein aryl selenoesters (generated from expressed intein fusion precursors) followed by in situ chemoselective deselenization to afford target proteins at concentrations that preclude the use of traditional ligation methods. The utility of the EPSL technology is showcased through the efficient semi‐synthesis of ubiquitinated polypeptides, lipidated analogues of the membrane‐associated GTPase YPT6, and site‐specifically phosphorylated variants of the oligomeric chaperone protein Hsp27 at high dilution.
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Affiliation(s)
- Sameer S Kulkarni
- School of Chemistry and Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - Emma E Watson
- School of Chemistry and Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - Joshua W C Maxwell
- School of Chemistry and Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - Gerhard Niederacher
- Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Vienna, Austria
| | - Jason Johansen-Leete
- School of Chemistry and Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - Susanne Huhmann
- Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Vienna, Austria
| | - Somnath Mukherjee
- Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Vienna, Austria
| | - Alexander R Norman
- School of Chemistry and Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, NSW 2006, Australia
| | - Julia Kriegesmann
- Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Vienna, Austria
| | - Christian F W Becker
- Faculty of Chemistry, Institute of Biological Chemistry, University of Vienna, Vienna, Austria
| | - Richard J Payne
- School of Chemistry and Australian Research Council Centre of Excellence for Innovations in Peptide and Protein Science, The University of Sydney, Sydney, NSW 2006, Australia
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4
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Huang DL, Li Y, Zheng JS. Removable Backbone Modification (RBM) Strategy for the Chemical Synthesis of Hydrophobic Peptides/Proteins. Methods Mol Biol 2022; 2530:241-256. [PMID: 35761053 DOI: 10.1007/978-1-0716-2489-0_16] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Chemical synthesis can provide hydrophobic proteins with natural or man-made modifications (e.g. S-palmitoylation, site-specific isotope labeling and mirror-image proteins) that are difficult to obtain through the recombinant expression technology. The difficulty of chemical synthesis of hydrophobic proteins stems from the hydrophobic nature. Removable backbone modificaiton (RBM) strategy has been developed for solubilizing the hydrophobic peptides/proteins. Here we take the chemical synthesis of a S-palmitoylated peptide as an example to describe the detailed procedure of RBM strategy. Three critical steps of this protocol are: (1) installation of Lys6-tagged RBM groups into the peptides by Fmoc (9-fluorenylmethyloxycarbonyl) solid-phase peptide synthesis, (2) chemical ligation of the peptides, and (3) removal of the RBM tags by TFA (trifluoroacetic acid) cocktails to give the target peptide.
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Affiliation(s)
- Dong-Liang Huang
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, China
| | - Ying Li
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, China
| | - Ji-Shen Zheng
- The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui, China.
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5
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Bialas F, Becker CFW. Biomimetic Silica Encapsulation of Lipid Nanodiscs and β-Sheet-Stabilized Diacylglycerol Kinase. Bioconjug Chem 2021; 32:1742-1752. [PMID: 34288667 PMCID: PMC8382255 DOI: 10.1021/acs.bioconjchem.1c00260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 07/08/2021] [Indexed: 12/21/2022]
Abstract
Integral membrane proteins (IMPs) comprise highly important classes of proteins such as transporters, sensors, and channels, but their investigation and biotechnological application are complicated by the difficulty to stabilize them in solution. We set out to develop a biomimetic procedure to encapsulate functional integral membrane proteins in silica to facilitate their handling under otherwise detrimental conditions and thereby extend their applicability. To this end, we designed and expressed new fusion constructs of the membrane scaffold protein MSP with silica-precipitating peptides based on the R5 sequence from the diatom Cylindrotheca fusiformis. Transmission electron microscopy (TEM) and atomic force microscopy (AFM) revealed that membrane lipid nanodiscs surrounded by our MSP variants fused to an R5 peptide, so-called nanodiscs, were formed. Exposing them to silicic acid led to silica-encapsulated nanodiscs, a new material for stabilizing membrane structures and a first step toward incorporating membrane proteins in such structures. In an alternative approach, four fusion constructs based on the amphiphilic β-sheet peptide BP-1 and the R5 peptide were generated and successfully employed toward silica encapsulation of functional diacylglycerol kinase (DGK). Silica-encapsulated DGK was significantly more stable against protease exposure and incubation with simulated gastric fluid (SGF) and intestinal fluid (SIF).
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Affiliation(s)
- Friedrich Bialas
- Institute of Biological Chemistry,
Faculty of Chemistry, University of Vienna, Währinger Straße 38, 1090 Vienna, Austria
| | - Christian F. W. Becker
- Institute of Biological Chemistry,
Faculty of Chemistry, University of Vienna, Währinger Straße 38, 1090 Vienna, Austria
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6
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Hojo H, Takei T, Asahina Y, Okumura N, Takao T, So M, Suetake I, Sato T, Kawamoto A, Hirabayashi Y. Total Synthesis and Structural Characterization of Caveolin‐1. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202100826] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Hironobu Hojo
- Institute for Protein Research Osaka University Osaka 565-0871 Japan
| | - Toshiki Takei
- Institute for Protein Research Osaka University Osaka 565-0871 Japan
| | - Yuya Asahina
- Institute for Protein Research Osaka University Osaka 565-0871 Japan
| | - Nobuaki Okumura
- Institute for Protein Research Osaka University Osaka 565-0871 Japan
| | - Toshifumi Takao
- Institute for Protein Research Osaka University Osaka 565-0871 Japan
| | - Masatomo So
- Institute for Protein Research Osaka University Osaka 565-0871 Japan
| | - Isao Suetake
- Nakamura Gakuen University Fukuoka 814-0198 Japan
| | - Takeshi Sato
- Kyoto Pharmaceutical University Kyoto 607-8414 Japan
| | - Akihiro Kawamoto
- Institute for Protein Research Osaka University Osaka 565-0871 Japan
| | - Yoshio Hirabayashi
- RIKEN Cluster for Pioneering Research Saitama 351-0198 Japan
- Institute for Environmental and Gender-Specific Medicine Juntendo University Graduate School of Medicine Chiba 279-0021 Japan
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7
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Hojo H, Takei T, Asahina Y, Okumura N, Takao T, So M, Suetake I, Sato T, Kawamoto A, Hirabayashi Y. Total Synthesis and Structural Characterization of Caveolin-1. Angew Chem Int Ed Engl 2021; 60:13900-13905. [PMID: 33825275 DOI: 10.1002/anie.202100826] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2021] [Indexed: 11/06/2022]
Abstract
Caveolin-1, which is an essential protein for caveola formation, was chemically synthesized. It is composed of 177 amino acid residues, is triply palmitoylated at the C-terminal region, and is inserted into the lipid bilayer to form a V-shaped structure in the middle of the polypeptide chain. The entire sequence was divided into five peptide segments, each of which was synthesized by the solid-phase method. To improve the solubility of the C-terminal region, O-acyl isopeptide structures were incorporated. After ligation by the thioester method and the introduction of the palmitoyl groups, all the protecting groups were removed and the isopeptide structures were converted into the native peptide bond. Finally, the obtained polypeptide was successfully inserted into bicelles, thus showing the success of the synthesis.
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Affiliation(s)
- Hironobu Hojo
- Institute for Protein Research, Osaka University, Osaka, 565-0871, Japan
| | - Toshiki Takei
- Institute for Protein Research, Osaka University, Osaka, 565-0871, Japan
| | - Yuya Asahina
- Institute for Protein Research, Osaka University, Osaka, 565-0871, Japan
| | - Nobuaki Okumura
- Institute for Protein Research, Osaka University, Osaka, 565-0871, Japan
| | - Toshifumi Takao
- Institute for Protein Research, Osaka University, Osaka, 565-0871, Japan
| | - Masatomo So
- Institute for Protein Research, Osaka University, Osaka, 565-0871, Japan
| | - Isao Suetake
- Nakamura Gakuen University, Fukuoka, 814-0198, Japan
| | - Takeshi Sato
- Kyoto Pharmaceutical University, Kyoto, 607-8414, Japan
| | - Akihiro Kawamoto
- Institute for Protein Research, Osaka University, Osaka, 565-0871, Japan
| | - Yoshio Hirabayashi
- RIKEN Cluster for Pioneering Research, Saitama, 351-0198, Japan.,Institute for Environmental and Gender-Specific Medicine, Juntendo University Graduate School of Medicine, Chiba, 279-0021, Japan
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8
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Structure of membrane diacylglycerol kinase in lipid bilayers. Commun Biol 2021; 4:282. [PMID: 33674677 PMCID: PMC7935881 DOI: 10.1038/s42003-021-01802-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 02/05/2021] [Indexed: 12/17/2022] Open
Abstract
Diacylglycerol kinase (DgkA) is a small integral membrane protein, responsible for the ATP-dependent phosphorylation of diacylglycerol to phosphatidic acid. Its structures reported in previous studies, determined in detergent micelles by solution NMR and in monoolein cubic phase by X-ray crystallography, differ significantly. These differences point to the need to validate these detergent-based structures in phospholipid bilayers. Here, we present a well-defined homo-trimeric structure of DgkA in phospholipid bilayers determined by magic angle spinning solid-state NMR (ssNMR) spectroscopy, using an approach combining intra-, inter-molecular paramagnetic relaxation enhancement (PRE)-derived distance restraints and CS-Rosetta calculations. The DgkA structure determined in lipid bilayers is different from the solution NMR structure. In addition, although ssNMR structure of DgkA shows a global folding similar to that determined by X-ray, these two structures differ in monomeric symmetry and dynamics. A comparative analysis of DgkA structures determined in three different detergent/lipid environments provides a meaningful demonstration of the influence of membrane mimetic environments on the structure and dynamics of membrane proteins. Jianping Li et al. present the homo-trimeric structure of the small integral membrane protein diacylglycerol kinase (DgkA) in phospholipid bilayers determined by magic angle spinning solid-state NMR spectroscopy. They compare the structure with structures solved by solution NMR and X-ray crystallography and provide insights into the influence of membrane mimetic environments on membrane proteins.
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9
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Abboud SA, Cisse EH, Doudeau M, Bénédetti H, Aucagne V. A straightforward methodology to overcome solubility challenges for N-terminal cysteinyl peptide segments used in native chemical ligation. Chem Sci 2021; 12:3194-3201. [PMID: 34164087 PMCID: PMC8179351 DOI: 10.1039/d0sc06001a] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 01/10/2021] [Indexed: 02/06/2023] Open
Abstract
One of the main limitations encountered during the chemical synthesis of proteins through native chemical ligation (NCL) is the limited solubility of some of the peptide segments. The most commonly used solution to overcome this problem is to derivatize the segment with a temporary solubilizing tag. Conveniently, the tag can be introduced on the thioester segment in such a way that it is removed concomitantly with the NCL reaction. We herein describe a generalization of this approach to N-terminal cysteinyl segment counterparts, using a straightforward synthetic approach that can be easily automated from commercially available building blocks, and applied it to a well-known problematic target, SUMO-2.
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Affiliation(s)
- Skander A Abboud
- Centre de Biophysique Moléculaire, CNRS UPR 4301 Rue Charles Sadron 45071 Orléans Cedex 2 France
| | - El Hadji Cisse
- Centre de Biophysique Moléculaire, CNRS UPR 4301 Rue Charles Sadron 45071 Orléans Cedex 2 France
| | - Michel Doudeau
- Centre de Biophysique Moléculaire, CNRS UPR 4301 Rue Charles Sadron 45071 Orléans Cedex 2 France
| | - Hélène Bénédetti
- Centre de Biophysique Moléculaire, CNRS UPR 4301 Rue Charles Sadron 45071 Orléans Cedex 2 France
| | - Vincent Aucagne
- Centre de Biophysique Moléculaire, CNRS UPR 4301 Rue Charles Sadron 45071 Orléans Cedex 2 France
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10
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Huang DL, Li Y, Liang J, Yu L, Xue M, Cao XX, Xiao B, Tian CL, Liu L, Zheng JS. The New Salicylaldehyde S,S-Propanedithioacetal Ester Enables N-to-C Sequential Native Chemical Ligation and Ser/Thr Ligation for Chemical Protein Synthesis. J Am Chem Soc 2020; 142:8790-8799. [DOI: 10.1021/jacs.0c01561] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Dong-Liang Huang
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
| | - Ying Li
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Jun Liang
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
| | - Lu Yu
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
| | - Min Xue
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
| | - Xiu-Xiu Cao
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
| | - Bin Xiao
- Department of Chemistry, University of Science and Technology of China, Hefei 230026, China
| | - Chang-Lin Tian
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
| | - Lei Liu
- Department of Chemistry, Tsinghua University, Beijing 100084, China
| | - Ji-Shen Zheng
- Hefei National Laboratory for Physical Sciences at the Microscale, School of Life Sciences, University of Science and Technology of China, Hefei 230027, China
- High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031, China
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11
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Mueller LK, Baumruck AC, Zhdanova H, Tietze AA. Challenges and Perspectives in Chemical Synthesis of Highly Hydrophobic Peptides. Front Bioeng Biotechnol 2020; 8:162. [PMID: 32195241 PMCID: PMC7064641 DOI: 10.3389/fbioe.2020.00162] [Citation(s) in RCA: 48] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Accepted: 02/18/2020] [Indexed: 12/31/2022] Open
Abstract
Solid phase peptide synthesis (SPPS) provides the possibility to chemically synthesize peptides and proteins. Applying the method on hydrophilic structures is usually without major drawbacks but faces extreme complications when it comes to "difficult sequences." These includes the vitally important, ubiquitously present and structurally demanding membrane proteins and their functional parts, such as ion channels, G-protein receptors, and other pore-forming structures. Standard synthetic and ligation protocols are not enough for a successful synthesis of these challenging sequences. In this review we highlight, summarize and evaluate the possibilities for synthetic production of "difficult sequences" by SPPS, native chemical ligation (NCL) and follow-up protocols.
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Affiliation(s)
- Lena K. Mueller
- Clemens-Schöpf Institute of Organic Chemistry and Biochemistry, Darmstadt University of Technology, Darmstadt, Germany
| | - Andreas C. Baumruck
- Clemens-Schöpf Institute of Organic Chemistry and Biochemistry, Darmstadt University of Technology, Darmstadt, Germany
| | - Hanna Zhdanova
- Department of Chemistry and Molecular Biology, Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
| | - Alesia A. Tietze
- Department of Chemistry and Molecular Biology, Wallenberg Centre for Molecular and Translational Medicine, University of Gothenburg, Gothenburg, Sweden
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12
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Zhang B, Deng Q, Zuo C, Yan B, Zuo C, Cao XX, Zhu TF, Zheng JS, Liu L. Ligation of Soluble but Unreactive Peptide Segments in the Chemical Synthesis of Haemophilus Influenzae DNA Ligase. Angew Chem Int Ed Engl 2019; 58:12231-12237. [PMID: 31250514 DOI: 10.1002/anie.201905149] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Indexed: 01/28/2023]
Abstract
During the total chemical synthesis of the water-soluble globular Haemophilus Influenzae DNA ligase (Hin-Lig), we observed the surprising phenomenon of a soluble peptide segment that failed to undergo native chemical ligation. Based on dynamic light scattering and transmission electron microscopy experiments, we determined that the peptide formed soluble colloidal particles in a homogeneous solution containing 6 m guanidine hydrochloride. Conventional peptide performance-improving strategies, such as installation of a terminal/side-chain Arg tag or O-acyl isopeptide, failed to enable the reaction, presumably because of their inability to disrupt the formation of soluble colloidal particles. However, a removable backbone modification strategy recently developed for the synthesis of membrane proteins did disrupt the formation of the colloids, and the desired ligation of this soluble but unreactive system was eventually accomplished. This work demonstrates that an appropriate solution dispersion state, in addition to good peptide solubility, is a prerequisite for successful peptide ligation.
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Affiliation(s)
- Baochang Zhang
- Tsinghua-Peking Joint Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Qiang Deng
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Chong Zuo
- Tsinghua-Peking Joint Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Bingjia Yan
- Tsinghua-Peking Joint Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Chao Zuo
- Tsinghua-Peking Joint Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
| | - Xiu-Xiu Cao
- School of Life Sciences, University of Science and Technology of China, and High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230026, China
| | - Ting F Zhu
- School of Life Sciences, Tsinghua University, Beijing, 100084, China
| | - Ji-Shen Zheng
- School of Life Sciences, University of Science and Technology of China, and High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei, 230026, China
| | - Lei Liu
- Tsinghua-Peking Joint Center for Life Sciences, Ministry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical Biology, Center for Synthetic and Systems Biology, Department of Chemistry, Tsinghua University, Beijing, 100084, China
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13
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Zhang B, Deng Q, Zuo C, Yan B, Zuo C, Cao X, Zhu TF, Zheng J, Liu L. Ligation of Soluble but Unreactive Peptide Segments in the Chemical Synthesis of
Haemophilus Influenzae
DNA Ligase. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201905149] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Baochang Zhang
- Tsinghua–Peking Joint Center for Life SciencesMinistry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Qiang Deng
- School of Life SciencesTsinghua University Beijing 100084 China
| | - Chong Zuo
- Tsinghua–Peking Joint Center for Life SciencesMinistry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Bingjia Yan
- Tsinghua–Peking Joint Center for Life SciencesMinistry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Chao Zuo
- Tsinghua–Peking Joint Center for Life SciencesMinistry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
| | - Xiu‐Xiu Cao
- School of Life SciencesUniversity of Science and Technology of China, and High Magnetic Field LaboratoryChinese Academy of Sciences Hefei 230026 China
| | - Ting F. Zhu
- School of Life SciencesTsinghua University Beijing 100084 China
| | - Ji‐Shen Zheng
- School of Life SciencesUniversity of Science and Technology of China, and High Magnetic Field LaboratoryChinese Academy of Sciences Hefei 230026 China
| | - Lei Liu
- Tsinghua–Peking Joint Center for Life SciencesMinistry of Education Key Laboratory of Bioorganic Phosphorus Chemistry and Chemical BiologyCenter for Synthetic and Systems BiologyDepartment of ChemistryTsinghua University Beijing 100084 China
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14
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Agouridas V, El Mahdi O, Diemer V, Cargoët M, Monbaliu JCM, Melnyk O. Native Chemical Ligation and Extended Methods: Mechanisms, Catalysis, Scope, and Limitations. Chem Rev 2019; 119:7328-7443. [DOI: 10.1021/acs.chemrev.8b00712] [Citation(s) in RCA: 243] [Impact Index Per Article: 48.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Vangelis Agouridas
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
| | - Ouafâa El Mahdi
- Faculté Polydisciplinaire de Taza, University Sidi Mohamed Ben Abdellah, BP 1223 Taza Gare, Morocco
| | - Vincent Diemer
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
| | - Marine Cargoët
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
| | - Jean-Christophe M. Monbaliu
- Center for Integrated Technology and Organic Synthesis, Department of Chemistry, University of Liège, Building B6a, Room 3/16a, Sart-Tilman, B-4000 Liège, Belgium
| | - Oleg Melnyk
- UMR CNRS 8204, Centre d’Immunité et d’Infection de Lille, University of Lille, CNRS, Institut Pasteur de Lille, F-59000 Lille, France
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15
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Zhao DD, Fan XW, Hao H, Zhang HL, Guo Y. Temporary Solubilizing Tags Method for the Chemical Synthesis of Hydrophobic Proteins. CURR ORG CHEM 2019. [DOI: 10.2174/1385272822666181211121758] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Hydrophobic proteins, as one of the cellular protein classifications, play an essential function in maintaining the normal life cycle of living cells. Researches on the structure and function of hydrophobic proteins promote the exploration of the causes of major diseases, and development of new therapeutic agents for disease treatment. However, the poor water solubility of hydrophobic proteins creates problems for their preparation, separation, characterization and functional studies. The temporary solubilizing tags are considered a practical strategy to effectively solve the poor water solubility problem of hydrophobic proteins. This strategy can significantly improve the water solubility of hydrophobic peptides/proteins, making them like water-soluble peptides/proteins easy to be purified, characterized. More importantly, the temporary solubilizing tags can be removed after protein synthesis, so thus the structure and function of the hydrophobic proteins are not affected. At present, temporary solubilizing tags have been successfully used to prepare many important hydrophobic proteins such as membrane proteins, lipoproteins and chaperones. In this review, we summarize the recent researches and applications of temporary solubilizing tags.
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Affiliation(s)
- Dong-Dong Zhao
- Department of Pharmacy, Baotou Medical College, Baotou, Inner Mongolia 014060, China
| | - Xiao-Wen Fan
- Department of Pharmacy, Baotou Medical College, Baotou, Inner Mongolia 014060, China
| | - He Hao
- Department of Pharmacy, Baotou Medical College, Baotou, Inner Mongolia 014060, China
| | - Hong-Li Zhang
- Department of Pharmacy, Baotou Medical College, Baotou, Inner Mongolia 014060, China
| | - Ye Guo
- Department of Pharmacy, Baotou Medical College, Baotou, Inner Mongolia 014060, China
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16
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Chemical synthesis of membrane proteins by the removable backbone modification method. Nat Protoc 2017; 12:2554-2569. [DOI: 10.1038/nprot.2017.129] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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17
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Li JB, Tang S, Zheng JS, Tian CL, Liu L. Removable Backbone Modification Method for the Chemical Synthesis of Membrane Proteins. Acc Chem Res 2017; 50:1143-1153. [PMID: 28374993 DOI: 10.1021/acs.accounts.7b00001] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Chemical synthesis can produce water-soluble globular proteins bearing specifically designed modifications. These synthetic molecules have been used to study the biological functions of proteins and to improve the pharmacological properties of protein drugs. However, the above advances notwithstanding, membrane proteins (MPs), which comprise 20-30% of all proteins in the proteomes of most eukaryotic cells, remain elusive with regard to chemical synthesis. This difficulty stems from the strong hydrophobic character of MPs, which can cause considerable handling issues during ligation, purification, and characterization steps. Considerable efforts have been made to improve the solubility of transmembrane peptides for chemical ligation. These methods can be classified into two main categories: the manipulation of external factors and chemical modification of the peptide. This Account summarizes our research advances in the development of chemical modification especially the two generations of removable backbone modification (RBM) strategy for the chemical synthesis of MPs. In the first RBM generation, we install a removable modification group at the backbone amide of Gly within the transmembrane peptides. In the second RBM generation, the RBM group can be installed into all primary amino acid residues. The second RBM strategy combines the activated intramolecular O-to-N acyl transfer reaction, in which a phenyl group remains unprotected during the coupling process, which can play a catalytic role to generate the activated phenyl ester to assist in the formation of amide. The key feature of the RBM group is its switchable stability in trifluoroacetic acid. The stability of these backbone amide N-modifications toward TFA can be modified by regulating the electronic effects of phenol groups. The free phenol group is acylated to survive the TFA deprotection step, while the acyl phenyl ester will be quantitatively hydrolyzed in a neutral aqueous solution, and the free phenol group increases the electron density of the benzene ring to make the RBM labile to TFA. The transmembrane peptide segment bearing RBM groups behaves like a water-soluble peptide during fluorenylmethyloxycarbonyl based solid-phase peptide synthesis (Fmoc SPPS), ligation, purification, and characterization. The quantitative removal of the RBM group can be performed to obtain full-length MPs. The RBM strategy was used to prepare the core transmembrane domain Kir5.1[64-179] not readily accessible by recombinant protein expression, the influenza A virus M2 proton channel with phosphorylation, the cation-specific ion channel p7 from the hepatitis C virus with site-specific NMR isotope labels, and so on. The RBM method enables the practical engineering of small- to medium-sized MPs or membrane protein domains to address fundamental questions in the biochemical, biophysical, and pharmaceutical sciences.
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Affiliation(s)
- Jia-Bin Li
- School of Life Sciences, University of Science and Technology of China , Hefei 230027, China
- Tsinghua-Peking Center for Life Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University , Beijing 100084, China
| | - Shan Tang
- Tsinghua-Peking Center for Life Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University , Beijing 100084, China
| | - Ji-Shen Zheng
- School of Life Sciences, University of Science and Technology of China , Hefei 230027, China
| | - Chang-Lin Tian
- School of Life Sciences, University of Science and Technology of China , Hefei 230027, China
| | - Lei Liu
- Tsinghua-Peking Center for Life Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University , Beijing 100084, China
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18
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Jacobsen MT, Petersen ME, Ye X, Galibert M, Lorimer GH, Aucagne V, Kay MS. A Helping Hand to Overcome Solubility Challenges in Chemical Protein Synthesis. J Am Chem Soc 2016; 138:11775-82. [PMID: 27532670 DOI: 10.1021/jacs.6b05719] [Citation(s) in RCA: 63] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Although native chemical ligation (NCL) and related chemoselective ligation approaches provide an elegant method to stitch together unprotected peptides, the handling and purification of insoluble and aggregation-prone peptides and assembly intermediates create a bottleneck to routinely preparing large proteins by completely synthetic means. In this work, we introduce a new general tool, Fmoc-Ddae-OH, N-Fmoc-1-(4,4-dimethyl-2,6-dioxocyclo-hexylidene)-3-[2-(2-aminoethoxy)ethoxy]-propan-1-ol, a heterobifunctional traceless linker for temporarily attaching highly solubilizing peptide sequences ("helping hands") onto insoluble peptides. This tool is implemented in three simple and nearly quantitative steps: (i) on-resin incorporation of the linker at a Lys residue ε-amine, (ii) Fmoc-SPPS elongation of a desired solubilizing sequence, and (iii) in-solution removal of the solubilizing sequence using mild aqueous hydrazine to cleave the Ddae linker after NCL-based assembly. Successful introduction and removal of a Lys6 helping hand is first demonstrated in two model systems (Ebola virus C20 peptide and the 70-residue ribosomal protein L31). It is then applied to the challenging chemical synthesis of the 97-residue co-chaperonin GroES, which contains a highly insoluble C-terminal segment that is rescued by a helping hand. Importantly, the Ddae linker can be cleaved in one pot following NCL or desulfurization. The purity, structure, and chaperone activity of synthetic l-GroES were validated with respect to a recombinant control. Additionally, the helping hand enabled synthesis of d-GroES, which was inactive in a heterochiral mixture with recombinant GroEL, providing additional insight into chaperone specificity. Ultimately, this simple, robust, and easy-to-use tool is expected to be broadly applicable for the synthesis of challenging peptides and proteins.
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Affiliation(s)
- Michael T Jacobsen
- Department of Biochemistry, University of Utah School of Medicine , 15 North Medical Drive East, Room 4100, Salt Lake City, Utah 84112-5650, United States
| | - Mark E Petersen
- Department of Biochemistry, University of Utah School of Medicine , 15 North Medical Drive East, Room 4100, Salt Lake City, Utah 84112-5650, United States
| | - Xiang Ye
- Department of Chemistry & Biochemistry, 8051 Regents Drive, University of Maryland , College Park, Maryland 20742-4454, United States
| | - Mathieu Galibert
- Centre de Biophysique Moléculaire, CNRS UPR4301 , Rue Charles Sadron, Orléans CEDEX 2 45071, France
| | - George H Lorimer
- Department of Chemistry & Biochemistry, 8051 Regents Drive, University of Maryland , College Park, Maryland 20742-4454, United States
| | - Vincent Aucagne
- Centre de Biophysique Moléculaire, CNRS UPR4301 , Rue Charles Sadron, Orléans CEDEX 2 45071, France
| | - Michael S Kay
- Department of Biochemistry, University of Utah School of Medicine , 15 North Medical Drive East, Room 4100, Salt Lake City, Utah 84112-5650, United States
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19
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Lee CL, Liu H, Wong CTT, Chow HY, Li X. Enabling N-to-C Ser/Thr Ligation for Convergent Protein Synthesis via Combining Chemical Ligation Approaches. J Am Chem Soc 2016; 138:10477-84. [DOI: 10.1021/jacs.6b04238] [Citation(s) in RCA: 62] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Chi Lung Lee
- Department of Chemistry,
The State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Han Liu
- Department of Chemistry,
The State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Clarence T. T. Wong
- Department of Chemistry,
The State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Hoi Yee Chow
- Department of Chemistry,
The State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
| | - Xuechen Li
- Department of Chemistry,
The State Key Laboratory of Synthetic Chemistry, The University of Hong Kong, Pokfulam, Hong Kong SAR, China
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20
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Maity SK, Mann G, Jbara M, Laps S, Kamnesky G, Brik A. Palladium-Assisted Removal of a Solubilizing Tag from a Cys Side Chain To Facilitate Peptide and Protein Synthesis. Org Lett 2016; 18:3026-9. [PMID: 27268382 DOI: 10.1021/acs.orglett.6b01442] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Reversible attachment of solubilizing tags to hydrophobic peptides to facilitate their purification and ligation is an essential yet challenging task in chemical protein synthesis. The efficient palladium-assisted removal of the solubilizing tag linked to the Cys side chain is reported. The strategy was applied for the efficient preparation of histone protein H4 from two fragments via one-pot operation of ligation, removal of the solubilizing tag, and desulfurization.
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Affiliation(s)
- Suman Kumar Maity
- Schulich Faculty of Chemistry Technion, Israel Institute of Technology , 32000 Haifa, Israel
| | - Guy Mann
- Schulich Faculty of Chemistry Technion, Israel Institute of Technology , 32000 Haifa, Israel
| | - Muhammad Jbara
- Schulich Faculty of Chemistry Technion, Israel Institute of Technology , 32000 Haifa, Israel
| | - Shay Laps
- Schulich Faculty of Chemistry Technion, Israel Institute of Technology , 32000 Haifa, Israel
| | - Guy Kamnesky
- Schulich Faculty of Chemistry Technion, Israel Institute of Technology , 32000 Haifa, Israel
| | - Ashraf Brik
- Schulich Faculty of Chemistry Technion, Israel Institute of Technology , 32000 Haifa, Israel
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21
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Chemuru S, Kodali R, Wetzel R. Improved chemical synthesis of hydrophobic Aβ peptides using addition of C-terminal lysines later removed by carboxypeptidase B. Biopolymers 2016; 102:206-21. [PMID: 24488729 DOI: 10.1002/bip.22470] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 01/21/2014] [Accepted: 01/27/2014] [Indexed: 01/11/2023]
Abstract
Many amyloidogenic peptides are highly hydrophobic, introducing significant challenges to obtaining high quality peptides by chemical synthesis. For example, while good yield and purity can be obtained in the solid-phase synthesis of the Alzheimer's plaque peptide Aβ40, addition of a C-terminal Ile-Ala sequence to generate the more toxic Aβ42 molecule creates a much more difficult synthesis resulting in low yields and purities. We describe here a new method that significantly improves the Fmoc solid-phase synthesis of Aβ peptides. In our method, Lys residues are linked to the desired peptide's C-terminus through standard peptide bonds during the synthesis. These Lys residues are then removed post-purification using immobilized carboxypeptidase B (CPB). With this method we obtained both Aβ42 and Aβ46 of superior quality that, for Aβ42, rivals that obtained by recombinant expression. Intriguingly, the method appears to provide independent beneficial effects on both the total synthetic yield and on purification yield and final purity. Reversible Lys addition with CPB removal should be a generally useful method for making hydrophobic peptides that is applicable to any sequence not ending in Arg or Lys. As expected from the additional hydrophobicity of Aβ46, which is extended from the sequence Aβ42 by a C-terminal Thr-Val-Ile-Val sequence, this peptide makes typical amyloid at rates significantly faster than for Aβ42 or Aβ40. The enhanced amyloidogenicity of Aβ46 suggests that, even though it is present in relatively low amounts in the human brain, it could play a significant role in helping to initiate Aβ amyloid formation.
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Affiliation(s)
- Saketh Chemuru
- Department of Structural Biology and Pittsburgh Institute for Neurodegenerative Diseases, University of Pittsburgh School of Medicine, Pittsburgh, PA
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22
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Bondalapati S, Jbara M, Brik A. Expanding the chemical toolbox for the synthesis of large and uniquely modified proteins. Nat Chem 2016; 8:407-18. [DOI: 10.1038/nchem.2476] [Citation(s) in RCA: 245] [Impact Index Per Article: 30.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2015] [Accepted: 02/04/2016] [Indexed: 12/18/2022]
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23
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Cohen LS, Arshava B, Kauffman S, Mathew E, Fracchiolla KE, Ding FX, Dumont ME, Becker JM, Naider F. Guided reconstitution of membrane protein fragments. Biopolymers 2016; 102:16-29. [PMID: 23897574 DOI: 10.1002/bip.22349] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 06/13/2013] [Accepted: 06/26/2013] [Indexed: 11/12/2022]
Abstract
Structural analysis by NMR of G protein-coupled receptors (GPCRs) has proven to be extremely challenging. To reduce the number of peaks in the NMR spectra by segmentally labeling a GPCR, we have developed a Guided Reconstitution method that includes the use of charged residues and Cys activation to drive heterodimeric disulfide bond formation. Three different cysteine-activating reagents: 5-5'-dithiobis(2-nitrobenzoic acid) [DTNB], 2,2'-dithiobis(5-nitropyridine) [DTNP], and 4,4'-dipyridyl disulfide [4-PDS] were analyzed to determine their efficiency in heterodimer formation at different pHs. Short peptides representing the N-terminal (NT) and C-terminal (CT) regions of the first extracellular loop (EL1) of Ste2p, the Saccharomyces cerevisiae alpha-factor mating receptor, were activated using these reagents and the efficiencies of activation and rates of heterodimerization were analyzed. Activation of NT peptides with DTNP and 4-PDS resulted in about 60% yield, but heterodimerization was rapid and nearly quantitative. Double transmembrane domain protein fragments were biosynthesized and used in Guided Reconstitution reactions. A 102-residue fragment, 2TM-tail [Ste2p(G31-I120C)], was heterodimerized with CT-EL1-tail(DTNP) at pH 4.6 with a yield of ∼75%. A 132-residue fragment, 2TMlong-tail [Ste2p(M1-I120C)], was expressed in both unlabeled and (15)N-labeled forms and used with a peptide comprising the third transmembrane domain, to generate a 180-residue segmentally labeled 3TM protein that was found to be segmentally labeled using [(15)N,(1)H]-HSQC analysis. Our data indicate that the Guided Reconstitution method would be applicable to the segmental labeling of a membrane protein with 3 transmembrane domains and may prove useful in the preparation of an intact reconstituted GPCR for use in biophysical analysis and structure determination.
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Affiliation(s)
- Leah S Cohen
- Department of Chemistry, The College of Staten Island, City University of New York (CUNY), Staten Island, NY, 10314
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24
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Zheng JS, He Y, Zuo C, Cai XY, Tang S, Wang ZA, Zhang LH, Tian CL, Liu L. Robust Chemical Synthesis of Membrane Proteins through a General Method of Removable Backbone Modification. J Am Chem Soc 2016; 138:3553-61. [PMID: 26943264 DOI: 10.1021/jacs.6b00515] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Chemical protein synthesis can provide access to proteins with post-translational modifications or site-specific labelings. Although this technology is finding increasing applications in the studies of water-soluble globular proteins, chemical synthesis of membrane proteins remains elusive. In this report, a general and robust removable backbone modification (RBM) method is developed for the chemical synthesis of membrane proteins. This method uses an activated O-to-N acyl transfer auxiliary to install in the Fmoc solid-phase peptide synthesis process a RBM group with switchable reactivity toward trifluoroacetic acid. The method can be applied to versatile membrane proteins because the RBM group can be placed at any primary amino acid. With RBM, the membrane proteins and their segments behave almost as if they were water-soluble peptides and can be easily handled in the process of ligation, purification, and mass characterizations. After the full-length protein is assembled, the RBM group can be readily removed by trifluoroacetic acid. The efficiency and usefulness of the new method has been demonstrated by the successful synthesis of a two-transmembrane-domain protein (HCV p7 ion channel) with site-specific isotopic labeling and a four-transmembrane-domain protein (multidrug resistance transporter EmrE). This method enables practical synthesis of small- to medium-sized membrane proteins or membrane protein domains for biochemical and biophysical studies.
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Affiliation(s)
- Ji-Shen Zheng
- High Magnetic Field Laboratory, Chinese Academy of Sciences, and School of Life Sciences, University of Science and Technology of China , Hefei 230031, China
| | - Yao He
- High Magnetic Field Laboratory, Chinese Academy of Sciences, and School of Life Sciences, University of Science and Technology of China , Hefei 230031, China
| | - Chao Zuo
- Tsinghua-Peking Center for Life Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University , Beijing 100084, China
| | - Xiao-Ying Cai
- High Magnetic Field Laboratory, Chinese Academy of Sciences, and School of Life Sciences, University of Science and Technology of China , Hefei 230031, China
| | - Shan Tang
- Tsinghua-Peking Center for Life Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University , Beijing 100084, China
| | - Zhipeng A Wang
- Tsinghua-Peking Center for Life Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University , Beijing 100084, China
| | - Long-Hua Zhang
- High Magnetic Field Laboratory, Chinese Academy of Sciences, and School of Life Sciences, University of Science and Technology of China , Hefei 230031, China
| | - Chang-Lin Tian
- High Magnetic Field Laboratory, Chinese Academy of Sciences, and School of Life Sciences, University of Science and Technology of China , Hefei 230031, China
| | - Lei Liu
- Tsinghua-Peking Center for Life Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University , Beijing 100084, China
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25
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Behrendt R, White P, Offer J. Advances in Fmoc solid-phase peptide synthesis. J Pept Sci 2016; 22:4-27. [PMID: 26785684 PMCID: PMC4745034 DOI: 10.1002/psc.2836] [Citation(s) in RCA: 420] [Impact Index Per Article: 52.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2015] [Accepted: 10/20/2015] [Indexed: 12/13/2022]
Abstract
Today, Fmoc SPPS is the method of choice for peptide synthesis. Very-high-quality Fmoc building blocks are available at low cost because of the economies of scale arising from current multiton production of therapeutic peptides by Fmoc SPPS. Many modified derivatives are commercially available as Fmoc building blocks, making synthetic access to a broad range of peptide derivatives straightforward. The number of synthetic peptides entering clinical trials has grown continuously over the last decade, and recent advances in the Fmoc SPPS technology are a response to the growing demand from medicinal chemistry and pharmacology. Improvements are being continually reported for peptide quality, synthesis time and novel synthetic targets. Topical peptide research has contributed to a continuous improvement and expansion of Fmoc SPPS applications.
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Affiliation(s)
- Raymond Behrendt
- Novabiochem, Merck & CieIm Laternenacker 58200SchaffhausenSwitzerland
| | - Peter White
- Novabiochem, Merck Chemicals LtdPadge RoadBeestonNG9 2JRUK
| | - John Offer
- The Francis Crick Institute215 Euston RoadLondonNW1 2BEUK
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26
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Hojo H. A strategy for the synthesis of hydrophobic proteins and glycoproteins. Org Biomol Chem 2016; 14:6368-74. [DOI: 10.1039/c6ob00827e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The hydrophobic glycoprotein was successfully synthesized by the reverse polarity protection strategy combined with the O-acylisopeptide method, which will be useful for the synthesis of various hydrophobic (glyco)proteins.
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Affiliation(s)
- Hironobu Hojo
- Institute for Protein Research
- Osaka University
- Suita
- Japan
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27
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Koniev O, Wagner A. Developments and recent advancements in the field of endogenous amino acid selective bond forming reactions for bioconjugation. Chem Soc Rev 2015; 44:5495-551. [PMID: 26000775 DOI: 10.1039/c5cs00048c] [Citation(s) in RCA: 391] [Impact Index Per Article: 43.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Bioconjugation methodologies have proven to play a central enabling role in the recent development of biotherapeutics and chemical biology approaches. Recent endeavours in these fields shed light on unprecedented chemical challenges to attain bioselectivity, biocompatibility, and biostability required by modern applications. In this review the current developments in various techniques of selective bond forming reactions of proteins and peptides were highlighted. The utility of each endogenous amino acid-selective conjugation methodology in the fields of biology and protein science has been surveyed with emphasis on the most relevant among reported transformations; selectivity and practical use have been discussed.
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Affiliation(s)
- Oleksandr Koniev
- Laboratory of Functional Chemo-Systems (UMR 7199), Labex Medalis, University of Strasbourg, 74 Route du Rhin, 67401 Illkirch-Graffenstaden, France.
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28
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Schmitz M, Kuhlmann M, Reimann O, Hackenberger CR, Groll J. Side-chain cysteine-functionalized poly(2-oxazoline)s for multiple peptide conjugation by native chemical ligation. Biomacromolecules 2015; 16:1088-94. [PMID: 25728550 PMCID: PMC4428813 DOI: 10.1021/bm501697t] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2014] [Revised: 02/27/2015] [Indexed: 12/19/2022]
Abstract
We prepared statistical copolymers composed of 2-methyl-2-oxazoline (MeOx) in combination with 2-butenyl-2-oxazoline (BuOx) or 2-decenyl-2-oxazoline (DecOx) as a basis for polymer analogous introduction of 1,2-aminothiol moieties at the side chain. MeOx provides hydrophilicity as well as cyto- and hemocompatibility, whereas the alkene groups of BuOx and DecOx serve for functionalization with a thiofunctional thiazolidine by UV-mediated thiol-ene reaction. After deprotection the cysteine content in functionalized poly(2-oxazoline) (POx) is quantified by NMR and a modified trinitrobenzenesulfonic acid assay. The luminescent cell viability assay shows no negative influence of cysteine-functionalized POx (cys-POx) concerning cell viability and cell number. cys-POx was used for multiple chemically orthogonal couplings with thioester-terminated peptides through native chemical ligation (NCL), which was performed and confirmed by NMR and MALDI-ToF measurements.
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Affiliation(s)
- Michael Schmitz
- Department
of Functional Materials in Medicine and Dentistry, University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
| | - Matthias Kuhlmann
- Department
of Functional Materials in Medicine and Dentistry, University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
| | - Oliver Reimann
- Department
Chemical Biology II, Leibniz-Institut für
Molekulare Pharmakologie (FMP), Robert-Rössle-Straße 10, 13125 Berlin, Germany
| | - Christian
P. R. Hackenberger
- Department
Chemical Biology II, Leibniz-Institut für
Molekulare Pharmakologie (FMP), Robert-Rössle-Straße 10, 13125 Berlin, Germany
- Humboldt
Universität zu Berlin, Department
Chemie, Brook-Taylor-Straße
2, 12489 Berlin, Germany
| | - Jürgen Groll
- Department
of Functional Materials in Medicine and Dentistry, University of Würzburg, Pleicherwall 2, 97070 Würzburg, Germany
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29
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Kuhlmann M, Reimann O, Hackenberger CPR, Groll J. Cysteine-Functional Polymers via Thiol-ene Conjugation. Macromol Rapid Commun 2015; 36:472-6. [DOI: 10.1002/marc.201400703] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 12/25/2014] [Indexed: 01/18/2023]
Affiliation(s)
- Matthias Kuhlmann
- Department for Functional Materials in Medicine and Dentistry; University of Würzburg; Pleicherwall 2 97070 Würzburg Germany
| | - Oliver Reimann
- Department Chemical Biology II; Leibniz-Institut für Molekulare Pharmakologie (FMP); Robert-Rössle-Strasse 10 13125 Berlin Germany
| | - Christian P. R. Hackenberger
- Department Chemical Biology II; Leibniz-Institut für Molekulare Pharmakologie (FMP); Robert-Rössle-Strasse 10 13125 Berlin Germany
- Department Chemie; Humboldt Universität zu Berlin; Brook-Taylor-Strasse 2 12489 Berlin Germany
| | - Jürgen Groll
- Department for Functional Materials in Medicine and Dentistry; University of Würzburg; Pleicherwall 2 97070 Würzburg Germany
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30
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Zuo C, Tang S, Zheng JS. Chemical synthesis and biophysical applications of membrane proteins. J Pept Sci 2014; 21:540-9. [DOI: 10.1002/psc.2721] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 10/30/2014] [Accepted: 10/31/2014] [Indexed: 12/16/2022]
Affiliation(s)
- Chao Zuo
- High Magnetic Field Laboratory; Chinese Academy of Sciences; Hefei 230031 China
- Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Shan Tang
- Department of Chemistry; Tsinghua University; Beijing 100084 China
| | - Ji-Shen Zheng
- High Magnetic Field Laboratory; Chinese Academy of Sciences; Hefei 230031 China
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31
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Cohen LS, Fracchiolla KE, Becker J, Naider F. Invited review GPCR structural characterization: Using fragments as building blocks to determine a complete structure. Biopolymers 2014; 102:223-43. [DOI: 10.1002/bip.22490] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2014] [Revised: 03/24/2014] [Accepted: 03/27/2014] [Indexed: 12/30/2022]
Affiliation(s)
- Leah S. Cohen
- Department of Chemistry; The College of Staten Island, City University of New York (CUNY); Staten Island NY 10314
| | - Katrina E. Fracchiolla
- Department of Chemistry; The College of Staten Island, City University of New York (CUNY); Staten Island NY 10314
| | - Jeff Becker
- Department of Microbiology; University of Tennessee; Knoxville TN 37996
| | - Fred Naider
- Department of Chemistry; The College of Staten Island, City University of New York (CUNY); Staten Island NY 10314
- Department of Biochemistry; The Graduate Center; CUNY NY 10016-4309
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32
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Zheng JS, Yu M, Qi YK, Tang S, Shen F, Wang ZP, Xiao L, Zhang L, Tian CL, Liu L. Expedient total synthesis of small to medium-sized membrane proteins via Fmoc chemistry. J Am Chem Soc 2014; 136:3695-704. [PMID: 24559202 DOI: 10.1021/ja500222u] [Citation(s) in RCA: 117] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Total chemical synthesis provides a unique approach for the access to uncontaminated, monodisperse, and more importantly, post-translationally modified membrane proteins. In the present study we report a practical procedure for expedient and cost-effective synthesis of small to medium-sized membrane proteins in multimilligram scale through the use of automated Fmoc chemistry. The key finding of our study is that after the attachment of a removable arginine-tagged backbone modification group, the membrane protein segments behave almost the same as ordinary water-soluble peptides in terms of Fmoc solid-phase synthesis, ligation, purification, and mass spectrometry characterization. The efficiency and practicality of the new method is demonstrated by the successful preparation of Ser64-phosphorylated M2 proton channel from influenza A virus and the membrane-embedded domain of an inward rectifier K(+) channel protein Kir5.1. Functional characterizations of these chemically synthesized membrane proteins indicate that they provide useful and otherwise-difficult-to-access materials for biochemistry and biophysics studies.
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Affiliation(s)
- Ji-Shen Zheng
- Tsinghua-Peking Center for Life Sciences, Key Laboratory of Bioorganic Phosphorus Chemistry & Chemical Biology (Ministry of Education), Department of Chemistry, Tsinghua University , Beijing 100084, China
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33
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Verzele D, Madder A. Patchwork protein chemistry: a practitioner's treatise on the advances in synthetic peptide stitchery. Chembiochem 2014; 14:1032-48. [PMID: 23775826 DOI: 10.1002/cbic.201200775] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Indexed: 12/22/2022]
Abstract
With the study of peptides and proteins at the heart of many scientific endeavors, the omics era heralded a multitude of opportunities for chemists and biologists alike. Across the interface with life sciences, peptide chemistry plays an indispensable role, and progress made over the past decades now allows proteins to be treated as molecular patchworks stitched together through synthetic tailoring. The continuous elaboration of sophisticated strategies notwithstanding, Merrifield's solid-phase methodology remains a cornerstone of chemical protein design. Although the non-practitioner might misjudge peptide synthesis as trivial, routine, or dull given its long history, we comment here on its many advances, obstacles, and prospects from a practitioner's point of view. While sharing our perspectives through thematic highlights across the literature, this treatise provides an interpretive overview as a guide to novices, and a recap for specialists.
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Affiliation(s)
- Dieter Verzele
- Organic and Biomimetic Chemistry Research Group, Department of Organic Chemistry, Faculty of Sciences, Ghent University, Krijgslaan 281 (S4), 9000 Ghent, Belgium.
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34
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Dittmann M, Seidel R, Chizhov I, Engelhard M. Total chemical synthesis of a membrane protein domain analogue containing two transmembrane helices: functional reconstitution of the semisynthetic sensory rhodopsin/transducer complex. J Pept Sci 2014; 20:137-44. [DOI: 10.1002/psc.2605] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2013] [Revised: 11/25/2013] [Accepted: 11/25/2013] [Indexed: 12/15/2022]
Affiliation(s)
- Marc Dittmann
- Max Planck Institute of Molecular Physiology; Otto Hahn Str. 11 44227 Dortmund Germany
| | - Ralf Seidel
- Max Planck Institute of Molecular Physiology; Otto Hahn Str. 11 44227 Dortmund Germany
| | - Igor Chizhov
- Medizinische Hochschule Hannover; Carl-Neuberg-Str. 1 30625 Hannover Germany
| | - Martin Engelhard
- Max Planck Institute of Molecular Physiology; Otto Hahn Str. 11 44227 Dortmund Germany
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35
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Schmid AW, Fauvet B, Moniatte M, Lashuel HA. Alpha-synuclein post-translational modifications as potential biomarkers for Parkinson disease and other synucleinopathies. Mol Cell Proteomics 2013; 12:3543-58. [PMID: 23966418 DOI: 10.1074/mcp.r113.032730] [Citation(s) in RCA: 141] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
The development of novel therapies against neurodegenerative disorders requires the ability to detect their early, presymptomatic manifestations in order to enable treatment before irreversible cellular damage occurs. Precocious signs indicative of neurodegeneration include characteristic changes in certain protein levels, which can be used as diagnostic biomarkers when they can be detected in fluids such as blood plasma or cerebrospinal fluid. In the case of synucleinopathies, cerebrospinal alpha-synuclein (α-syn) has attracted great interest as a potential biomarker; however, there is ongoing debate regarding the association between cerebrospinal α-syn levels and neurodegeneration in Parkinson disease and synucleinopathies. Post-translational modifications (PTMs) have emerged as important determinants of α-syn's physiological and pathological functions. Several PTMs are enriched within Lewy bodies and exist at higher levels in α-synucleinopathy brains, suggesting that certain modified forms of α-syn might be more relevant biomarkers than the total α-syn levels. However, the quantification of PTMs in bodily fluids poses several challenges. This review describes the limitations of current immunoassay-based α-syn quantification methods and highlights how these limitations can be overcome using novel mass-spectrometry-based assays. In addition, we describe how advances in chemical synthesis, which have enabled the preparation of α-syn proteins that are site-specifically modified at single or multiple residues, can facilitate the development of more accurate assays for detecting and quantifying α-syn PTMs in health and disease.
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Affiliation(s)
- Adrien W Schmid
- Proteomics Core Facility, School of Life Sciences, Station 19, Ecole Polytechnique Fédérale de Lausanne, CH-1015 Lausanne, Switzerland
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36
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Li D, Lyons JA, Pye VE, Vogeley L, Aragão D, Kenyon CP, Shah STA, Doherty C, Aherne M, Caffrey M. Crystal structure of the integral membrane diacylglycerol kinase. Nature 2013; 497:521-4. [PMID: 23676677 PMCID: PMC3740270 DOI: 10.1038/nature12179] [Citation(s) in RCA: 83] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2012] [Accepted: 04/12/2013] [Indexed: 11/09/2022]
Abstract
Diacylglycerol kinase catalyses the ATP-dependent phosphorylation of diacylglycerol to phosphatidic acid for use in shuttling water-soluble components to membrane-derived oligosaccharide and lipopolysaccharide in the cell envelope of Gram-negative bacteria. For half a century, this 121-residue kinase has served as a model for investigating membrane protein enzymology, folding, assembly and stability. Here we present crystal structures for three functional forms of this unique and paradigmatic kinase, one of which is wild type. These reveal a homo-trimeric enzyme with three transmembrane helices and an amino-terminal amphiphilic helix per monomer. Bound lipid substrate and docked ATP identify the putative active site that is of the composite, shared site type. The crystal structures rationalize extensive biochemical and biophysical data on the enzyme. They are, however, at variance with a published solution NMR model in that domain swapping, a key feature of the solution form, is not observed in the crystal structures.
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Affiliation(s)
- Dianfan Li
- School of Biochemistry and Immunology & School of Medicine, Trinity College Dublin, Dublin 2, Ireland
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37
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Nikolov DB, Xu K, Himanen JP. Eph/ephrin recognition and the role of Eph/ephrin clusters in signaling initiation. BIOCHIMICA ET BIOPHYSICA ACTA-PROTEINS AND PROTEOMICS 2013; 1834:2160-5. [PMID: 23628727 DOI: 10.1016/j.bbapap.2013.04.020] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Revised: 04/17/2013] [Accepted: 04/19/2013] [Indexed: 11/15/2022]
Abstract
The Eph receptors and their ephrin ligands play crucial roles in a large number of cell-cell interaction events, including those associated with axon pathfinding, neuronal cell migration and vasculogenesis. They are also involved in the patterning of most tissues and overall cell positioning in the development of the vertebrate body plan. The Eph/ephrin signaling system manifests several unique features that differentiate it from other receptor tyrosine kinases, including initiation of bi-directional signaling cascades and the existence of ligand and receptor subclasses displaying promiscuous intra-subclass interactions, but very rare inter-subclass interactions. In this review we briefly discuss these features and focus on recent studies of the unique and expansive high-affinity Eph/ephrin assemblies that form at the sites of cell-cell contact and are required for Eph signaling initiation. This article is part of a Special Issue entitled: Emerging recognition and activation mechanisms of receptor tyrosine kinases.
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Affiliation(s)
- Dimitar B Nikolov
- Structural Biology Program, Memorial Sloan-Kettering Cancer Center, New York, NY 10065, USA.
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38
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Huang YC, Li YM, Chen Y, Pan M, Li YT, Yu L, Guo QX, Liu L. Synthesis of Autophagosomal Marker Protein LC3-II under Detergent-Free Conditions. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201209523] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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39
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Huang YC, Li YM, Chen Y, Pan M, Li YT, Yu L, Guo QX, Liu L. Synthesis of Autophagosomal Marker Protein LC3-II under Detergent-Free Conditions. Angew Chem Int Ed Engl 2013; 52:4858-62. [DOI: 10.1002/anie.201209523] [Citation(s) in RCA: 80] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2012] [Revised: 02/06/2013] [Indexed: 11/10/2022]
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40
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Raibaut L, Adihou H, Desmet R, Delmas AF, Aucagne V, Melnyk O. Highly efficient solid phase synthesis of large polypeptides by iterative ligations of bis(2-sulfanylethyl)amido (SEA) peptide segments. Chem Sci 2013. [DOI: 10.1039/c3sc51824h] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
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41
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Caffrey M, Li D, Dukkipati A. Membrane protein structure determination using crystallography and lipidic mesophases: recent advances and successes. Biochemistry 2012; 51:6266-88. [PMID: 22783824 DOI: 10.1021/bi300010w] [Citation(s) in RCA: 81] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
The crystal structure of the β(2)-adrenergic receptor in complex with an agonist and its cognate G protein has just recently been determined. It is now possible to explore in molecular detail the means by which this paradigmatic transmembrane receptor binds agonist, communicates the impulse or signaling event across the membrane, and sets in motion a series of G protein-directed intracellular responses. The structure was determined using crystals of the ternary complex grown in a rationally designed lipidic mesophase by the so-called in meso method. The method is proving to be particularly useful in the G protein-coupled receptor field where the structures of 13 distinct receptor types have been determined in the past 5 years. In addition to receptors, the method has proven to be useful with a wide variety of integral membrane protein classes that include bacterial and eukaryotic rhodopsins, light-harvesting complex II (LHII), photosynthetic reaction centers, cytochrome oxidases, β-barrels, an exchanger, and an integral membrane peptide. This attests to the versatility and range of the method and supports the view that the in meso method should be included in the arsenal of the serious membrane structural biologist. For this to happen, however, the reluctance to adopt it attributable, in part, to the anticipated difficulties associated with handling the sticky, viscous cubic mesophase in which crystals grow must be overcome. Harvesting and collecting diffraction data with the mesophase-grown crystals are also viewed with some trepidation. It is acknowledged that there are challenges associated with the method. Over the years, we have endeavored to establish how the method works at a molecular level and to make it user-friendly. To these ends, tools for handling the mesophase in the pico- to nanoliter volume range have been developed for highly efficient crystallization screening in manual and robotic modes. Methods have been implemented for evaluating the functional activity of membrane proteins reconstituted into the bilayer of the cubic phase as a prelude to crystallogenesis. Glass crystallization plates that provide unparalleled optical quality and sensitivity to nascent crystals have been built. Lipid and precipitant screens have been designed for a more rational approach to crystallogenesis such that the method can now be applied to an even wider variety of membrane protein types. In this work, these assorted advances are outlined along with a summary of the membrane proteins that have yielded to the method. The prospects for and the challenges that must be overcome to further develop the method are described.
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Affiliation(s)
- Martin Caffrey
- Membrane Structural and Functional Biology Group, School of Medicine and School of Biochemistry and Immunology, Trinity College Dublin, Dublin, Ireland.
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42
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Westerlind U. Synthetic glycopeptides and glycoproteins with applications in biological research. Beilstein J Org Chem 2012; 8:804-18. [PMID: 23015828 PMCID: PMC3388868 DOI: 10.3762/bjoc.8.90] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2012] [Accepted: 05/22/2012] [Indexed: 12/21/2022] Open
Abstract
Over the past few years, synthetic methods for the preparation of complex glycopeptides have been drastically improved. The need for homogenous glycopeptides and glycoproteins with defined chemical structures to study diverse biological phenomena further enhances the development of methodologies. Selected recent advances in synthesis and applications, in which glycopeptides or glycoproteins serve as tools for biological studies, are reviewed. The importance of specific antibodies directed to the glycan part, as well as the peptide backbone has been realized during the development of synthetic glycopeptide-based anti-tumor vaccines. The fine-tuning of native chemical ligation (NCL), expressed protein ligation (EPL), and chemoenzymatic glycosylation techniques have all together enabled the synthesis of functional glycoproteins. The synthesis of structurally defined, complex glycopeptides or glyco-clusters presented on natural peptide backbones, or mimics thereof, offer further possibilities to study protein-binding events.
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Affiliation(s)
- Ulrika Westerlind
- Gesellschaft zur Förderung der Analytischen Wissenschaften e.V., ISAS - Leibniz Institute for Analytical Sciences, Otto-Hahn-Str. 6b, D-44227 Dortmund, Germany, Tel: (+49)231-1392 4215
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43
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Dittmann M, Sadek M, Seidel R, Engelhard M. Native chemical ligation in dimethylformamide can be performed chemoselectively without racemization. J Pept Sci 2012; 18:312-6. [PMID: 22431434 DOI: 10.1002/psc.2401] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Revised: 01/04/2012] [Accepted: 01/10/2012] [Indexed: 11/11/2022]
Abstract
Native chemical ligation of unprotected peptides in organic solvents has been previously reported as a fast, efficient, and suitable method for coupling of hydrophobic peptides. However, it has not been determined whether the reaction can be carried out without possible side reactions or racemization. Here, we present a study on the chemoselectivity of this method by model reactions designed to test the reactivity of Arg and Lys side chains as well as that of α-amino groups. A possible racemization of the C-terminal amino acid of the N-terminal peptide was also investigated. The results show that ligation in organic solvents can be conducted chemoselectively without side reactions with other nucleophilic groups. Furthermore, no racemization of the C-terminal amino acid was observed if both educts were added simultaneously. Thus, native chemical ligation can be performed either in aqueous buffer systems or in organic solvents paving the way for the synthesis of larger hydrophobic peptides and/or membrane proteins.
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Affiliation(s)
- Marc Dittmann
- Max Planck Institute of Molecular Physiology, Otto Hahn Str. 11, 44227, Dortmund, Germany
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44
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Nagorny P, Sane N, Fasching B, Aussedat B, Danishefsky SJ. Probing the frontiers of glycoprotein synthesis: the fully elaborated β-subunit of the human follicle-stimulating hormone. Angew Chem Int Ed Engl 2012; 51:975-9. [PMID: 22162182 PMCID: PMC3285374 DOI: 10.1002/anie.201107482] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2011] [Indexed: 01/22/2023]
Affiliation(s)
| | | | - Bernhard Fasching
- Laboratory for Bioorganic Chemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10065, and Department of Chemistry, Columbia University, Havemeyer Hall, 3000 Broadway, New York, New York 10027(USA), Fax: (+1)212-772-8691
| | - Baptiste Aussedat
- Laboratory for Bioorganic Chemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10065, and Department of Chemistry, Columbia University, Havemeyer Hall, 3000 Broadway, New York, New York 10027(USA), Fax: (+1)212-772-8691
| | - Samuel J. Danishefsky
- Laboratory for Bioorganic Chemistry, Sloan-Kettering Institute for Cancer Research, 1275 York Avenue, New York, New York 10065, and Department of Chemistry, Columbia University, Havemeyer Hall, 3000 Broadway, New York, New York 10027(USA), Fax: (+1)212-772-8691
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45
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Raibaut L, Ollivier N, Melnyk O. Sequential native peptide ligation strategies for total chemical protein synthesis. Chem Soc Rev 2012; 41:7001-15. [DOI: 10.1039/c2cs35147a] [Citation(s) in RCA: 180] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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46
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Monbaliu JCM, Katritzky AR. Recent trends in Cys- and Ser/Thr-based synthetic strategies for the elaboration of peptide constructs. Chem Commun (Camb) 2012; 48:11601-22. [DOI: 10.1039/c2cc34434c] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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47
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Abstract
Prokaryotic diacylglycerol kinase (DAGK) and undecaprenol kinase (UDPK) are the lone members of a family of multispan membrane enzymes that are very small, lack relationships to any other family of proteins-including water soluble kinases-and exhibit an unusual structure and active site architecture. Escherichia coli DAGK plays an important role in recycling diacylglycerol produced as a by-product of biosynthesis of molecules located in the periplasmic space. UDPK seems to play an analogous role in gram-positive bacteria, where its importance is evident because UDPK is essential for biofilm formation by the oral pathogen Streptococcus mutans. DAGK has also long served as a model system for studies of membrane protein biocatalysis, folding, stability, and structure. This review explores our current understanding of the microbial physiology, enzymology, structural biology, and folding of the prokaryotic DAGK family, which is based on over 40 years of studies.
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Affiliation(s)
- Wade D Van Horn
- Department of Biochemistry and Center for Structural Biology, Vanderbilt University, Nashville, Tennessee 37232, USA
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48
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Yang R, Hou W, Zhang X, Liu CF. N-to-C Sequential Ligation Using Peptidyl N,N-Bis(2-mercaptoethyl)amide Building Blocks. Org Lett 2011; 14:374-7. [DOI: 10.1021/ol2031284] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Renliang Yang
- Structural Biology and Biochemistry Division, School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
| | - Wen Hou
- Structural Biology and Biochemistry Division, School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
| | - Xiaohong Zhang
- Structural Biology and Biochemistry Division, School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
| | - Chuan-Fa Liu
- Structural Biology and Biochemistry Division, School of Biological Sciences, Nanyang Technological University, 60 Nanyang Drive, Singapore 637551
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49
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Nagorny P, Sane N, Fasching B, Aussedat B, Danishefsky SJ. Probing the Frontiers of Glycoprotein Synthesis: The Fully Elaborated β-Subunit of the Human Follicle-Stimulating Hormone. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201107482] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
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50
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Ollivier N, Vicogne J, Vallin A, Drobecq H, Desmet R, El Mahdi O, Leclercq B, Goormachtigh G, Fafeur V, Melnyk O. A One-Pot Three-Segment Ligation Strategy for Protein Chemical Synthesis. Angew Chem Int Ed Engl 2011; 51:209-13. [DOI: 10.1002/anie.201105837] [Citation(s) in RCA: 118] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2011] [Indexed: 11/11/2022]
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