1
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Li X, Zhang B, Hu Q, Chen C, Huang J, Liu L, Wang S. Refinement of the Fusion Tag PagP for Effective Formation of Inclusion Bodies in Escherichia coli. Microbiol Spectr 2023; 11:e0380322. [PMID: 37222613 PMCID: PMC10269538 DOI: 10.1128/spectrum.03803-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Accepted: 05/05/2023] [Indexed: 05/25/2023] Open
Abstract
Methods for efficient insoluble protein production require further exploration. PagP, an Escherichia coli outer membrane protein with high β-sheet content, could function as an efficient fusion partner for inclusion body-targeted expression of recombinant peptides. The primary structure of a given polypeptide determines to a large extent its propensity to aggregate. Herein, aggregation "hot spots" (HSs) in PagP were analyzed using the web-based software AGGRESCAN, leading to identification of a C-terminal region harboring numerous HSs. Moreover, a proline-rich region was found in the β-strands. Substitution of these prolines by residues with high β-sheet propensity and hydrophobicity significantly improved its ability to form aggregates. Consequently, the absolute yields of recombinant antimicrobial peptides Magainin II, Metchnikowin, and Andropin were increased significantly when expressed in fusion with this refined version of PagP. We describe separation of recombinant target proteins expressed in inclusion bodies fused with the tag. An artificial NHT linker peptide with three motifs was implemented for separation and purification of authentic recombinant antimicrobial peptides. IMPORTANCE Fusion tag-induced formation of inclusion bodies provides a powerful means to express unstructured or toxic proteins. For a given fusion tag, how to enhance the formation of inclusion bodies remains to be explored. Our study illustrated that the aggregation HSs in a fusion tag played important roles in mediating its insoluble expression. Efficient production of inclusion bodies could also be implemented by refining its primary structure to form a more stable β-sheet with higher hydrophobicity. This study provides a promising method for improvement of the insoluble expression of recombinant proteins.
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Affiliation(s)
- Xuefeng Li
- College of Life Sciences, South China Agricultural University, Guangzhou, People’s Republic of China
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, Guangzhou, People’s Republic of China
| | - Baorong Zhang
- College of Life Sciences, South China Agricultural University, Guangzhou, People’s Republic of China
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, Guangzhou, People’s Republic of China
| | - Quan Hu
- College of Life Sciences, South China Agricultural University, Guangzhou, People’s Republic of China
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, Guangzhou, People’s Republic of China
| | - Changchao Chen
- College of Life Sciences, South China Agricultural University, Guangzhou, People’s Republic of China
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, Guangzhou, People’s Republic of China
| | - Jiahua Huang
- College of Life Sciences, South China Agricultural University, Guangzhou, People’s Republic of China
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, Guangzhou, People’s Republic of China
| | - Lu Liu
- College of Life Sciences, South China Agricultural University, Guangzhou, People’s Republic of China
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, Guangzhou, People’s Republic of China
| | - Shengbin Wang
- College of Life Sciences, South China Agricultural University, Guangzhou, People’s Republic of China
- Guangdong Provincial Key Laboratory of Protein Function and Regulation in Agricultural Organisms, Guangzhou, People’s Republic of China
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2
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Denda M, Otaka A. Advances in Preparation of Peptide and Protein Thioesters Aiming to Use in Medicinal Sciences. Chem Pharm Bull (Tokyo) 2022; 70:316-323. [DOI: 10.1248/cpb.c21-01019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Masaya Denda
- Institute of Biomedical Sciences and Graduate School of Pharmaceutical Sciences, Tokushima University
| | - Akira Otaka
- Institute of Biomedical Sciences and Graduate School of Pharmaceutical Sciences, Tokushima University
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3
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Study of native SMAC protein production in the pUbiq expression system: molecular cloning, biosynthesis and molecular modelling. ELECTRON J BIOTECHN 2022. [DOI: 10.1016/j.ejbt.2022.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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4
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Morgan IL, Avinery R, Rahamim G, Beck R, Saleh OA. Glassy Dynamics and Memory Effects in an Intrinsically Disordered Protein Construct. PHYSICAL REVIEW LETTERS 2020; 125:058001. [PMID: 32794838 DOI: 10.1103/physrevlett.125.058001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Accepted: 07/07/2020] [Indexed: 06/11/2023]
Abstract
Glassy, nonexponential relaxations in globular proteins are typically attributed to conformational behaviors that are missing from intrinsically disordered proteins. Yet, we show that single molecules of a disordered-protein construct display two signatures of glassy dynamics, logarithmic relaxations and a Kovacs memory effect, in response to changes in applied tension. We attribute this to the presence of multiple independent local structures in the chain, which we corroborate with a model that correctly predicts the force dependence of the relaxation. The mechanism established here likely applies to other disordered proteins.
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Affiliation(s)
- Ian L Morgan
- BMSE Program, University of California, Santa Barbara, California 93106, USA
| | - Ram Avinery
- The Raymond and Beverly Sackler School of Physics and Astronomy and The Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv 69978, Israel
| | - Gil Rahamim
- The Raymond and Beverly Sackler School of Physics and Astronomy and The Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv 69978, Israel
| | - Roy Beck
- The Raymond and Beverly Sackler School of Physics and Astronomy and The Center for Nanoscience and Nanotechnology, Tel Aviv University, Tel Aviv 69978, Israel
| | - Omar A Saleh
- BMSE Program, University of California, Santa Barbara, California 93106, USA
- Materials Department, University of California, Santa Barbara, California 93106, USA
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5
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Abd Elhameed HAH, Hajdu B, Jancsó A, Kéri A, Galbács G, Hunyadi-Gulyás É, Gyurcsik B. Modulation of the catalytic activity of a metallonuclease by tagging with oligohistidine. J Inorg Biochem 2020; 206:111013. [PMID: 32088594 DOI: 10.1016/j.jinorgbio.2020.111013] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 01/23/2020] [Accepted: 01/27/2020] [Indexed: 11/19/2022]
Abstract
Peptide tags are extensively used for affinity purification of proteins. In an optimal case, these tags can be completely removed from the purified protein by a specific protease mediated hydrolysis. However, the interactions of these tags with the target protein may also be utilized for the modulation of the protein function. Here we show that the C-terminal hexahistidine (6 × His) tag can influence the catalytic activity of the nuclease domain of the Colicin E7 metallonuclease (NColE7) used by E. coli to kill competing bacteria under stress conditions. This enzyme non-specifically cleaves the DNA that results in cytotoxicity. We have successfully cloned the genes of NColE7 protein and its R447G mutant into a modified pET-21a DNA vector fusing the affinity tag to the protein upon expression, which would be otherwise not possible in the absence of the gene of the Im7 inhibitory protein. This reflects the inhibitory effect of the 6 × His fusion tag on the nuclease activity, which proved to be a complex process via both coordinative and non-specific steric interactions. The modulatory effect of Zn2+ ion was observed in the catalytic activity experiments. The DNA cleavage ability of the 6 × His tagged enzyme was first enhanced by an increase of metal ion concentration, while high excess of Zn2+ ions caused a lower rate of the DNA cleavage. Modelling of the coordinative effect of the fusion tag by external chelators suggested ternary complex formation instead of removal of the metal ion from the active center.
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Affiliation(s)
- Heba A H Abd Elhameed
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
| | - Bálint Hajdu
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
| | - Attila Jancsó
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
| | - Albert Kéri
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
| | - Gábor Galbács
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary
| | - Éva Hunyadi-Gulyás
- Laboratory of Proteomics Research, Biological Research Centre, Temesvári krt. 62, H-6726 Szeged, Hungary
| | - Béla Gyurcsik
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720 Szeged, Hungary.
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6
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Ly HGT, Mihaylov TT, Proost P, Pierloot K, Harvey JN, Parac‐Vogt TN. Chemical Mimics of Aspartate‐Directed Proteases: Predictive and Strictly Specific Hydrolysis of a Globular Protein at Asp−X Sequence Promoted by Polyoxometalate Complexes Rationalized by a Combined Experimental and Theoretical Approach. Chemistry 2019; 25:14370-14381. [DOI: 10.1002/chem.201902675] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/13/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Hong Giang T. Ly
- Laboratory of Bioinorganic ChemistryDepartment of ChemistryKU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Tzvetan T. Mihaylov
- Laboratory of Computational Coordination ChemistryDepartment of ChemistryKU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Paul Proost
- Laboratory of Molecular ImmunologyRega InstituteDepartment of Microbiology, Immunology, and TransplantationKU Leuven Herestraat 49 3000 Leuven Belgium
| | - Kristine Pierloot
- Laboratory of Computational Coordination ChemistryDepartment of ChemistryKU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Jeremy N. Harvey
- Laboratory of Computational Coordination ChemistryDepartment of ChemistryKU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
| | - Tatjana N. Parac‐Vogt
- Laboratory of Bioinorganic ChemistryDepartment of ChemistryKU Leuven Celestijnenlaan 200F 3001 Leuven Belgium
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7
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Dang B, Mravic M, Hu H, Schmidt N, Mensa B, DeGrado WF. SNAC-tag for sequence-specific chemical protein cleavage. Nat Methods 2019; 16:319-322. [PMID: 30923372 DOI: 10.1038/s41592-019-0357-353] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 02/06/2019] [Indexed: 05/28/2023]
Abstract
Site-specific protein cleavage is essential for many protein-production protocols and typically requires proteases. We report the development of a chemical protein-cleavage method that is achieved through the use of a sequence-specific nickel-assisted cleavage (SNAC)-tag. We demonstrate that the SNAC-tag can be inserted before both water-soluble and membrane proteins to achieve fusion protein cleavage under biocompatible conditions with efficiency comparable to that of enzymes, and that the method works even when enzymatic cleavages fail.
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Affiliation(s)
- Bobo Dang
- School of Life Sciences, Westlake University, Hangzhou, China.
- Institute of Biology, Westlake Institute for Advanced Study, Hangzhou, China.
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA.
| | - Marco Mravic
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA
| | - Hailin Hu
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA
- School of Medicine, Tsinghua University, Beijing, China
| | - Nathan Schmidt
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA
| | - Bruk Mensa
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA
| | - William F DeGrado
- Department of Pharmaceutical Chemistry, University of California, San Francisco, San Francisco, CA, USA.
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8
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SNAC-tag for sequence-specific chemical protein cleavage. Nat Methods 2019; 16:319-322. [PMID: 30923372 PMCID: PMC6443254 DOI: 10.1038/s41592-019-0357-3] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 02/06/2019] [Indexed: 11/25/2022]
Abstract
Biocompatible chemical protein cleavage methods have been long-sought to replace enzymatic cleavages, but have yet to be realized. Here, we report the development of the SNAC-tag (Sequence-specific Nickel Assisted Cleavage) to achieve sequence-specific chemical protein cleavage under biocompatible conditions with comparable efficiency to enzymes. We demonstrate that the SNAC-tag can be inserted before both water-soluble and membrane proteins to achieve fusion protein cleavage, even when enzymatic cleavages fail.
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9
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Abd Elhameed HAH, Hajdu B, Balogh RK, Hermann E, Hunyadi-Gulyás É, Gyurcsik B. Purification of proteins with native terminal sequences using a Ni(II)-cleavable C-terminal hexahistidine affinity tag. Protein Expr Purif 2019; 159:53-59. [PMID: 30905870 DOI: 10.1016/j.pep.2019.03.009] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Revised: 03/16/2019] [Accepted: 03/18/2019] [Indexed: 11/26/2022]
Abstract
The role of the termini of protein sequences is often perturbed by remnant amino acids after the specific protease cleavage of the affinity tags and/or by the amino acids encoded by the plasmid at/around the restriction enzyme sites used to insert the genes. Here we describe a method for affinity purification of a metallonuclease with its precisely determined native termini. First, the gene encoding the target protein is inserted into a newly designed cloning site, which contains two self-eliminating BsmBI restriction enzyme sites. As a consequence, the engineered DNA code of Ni(II)-sensitive Ser-X-His-X motif is fused to the 3'-end of the inserted gene followed by the gene of an affinity tag for protein purification purpose. The C-terminal segment starting from Ser mentioned above is cleaved off from purified protein by a Ni(II)-induced protease-like action. The success of the purification and cleavage was confirmed by gel electrophoresis and mass spectrometry, while structural integrity of the purified protein was checked by circular dichroism spectroscopy. Our new protein expression DNA construct is an advantageous tool for protein purification, when the complete removal of affinity or other tags, without any remaining amino acid residue is essential. The described procedure can easily be generalized and combined with various affinity tags at the C-terminus for chromatographic applications.
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Affiliation(s)
- Heba A H Abd Elhameed
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720, Szeged, Hungary
| | - Bálint Hajdu
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720, Szeged, Hungary
| | - Ria K Balogh
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720, Szeged, Hungary
| | - Enikő Hermann
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720, Szeged, Hungary
| | - Éva Hunyadi-Gulyás
- Laboratory of Proteomics Research, Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62, H-6726, Szeged, Hungary
| | - Béla Gyurcsik
- Department of Inorganic and Analytical Chemistry, University of Szeged, Dóm tér 7, H-6720, Szeged, Hungary.
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10
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Otaka A, Shigenaga A. Protein Synthetic Chemistry Inspired by Intein-mediated Protein Splicing. J SYN ORG CHEM JPN 2018. [DOI: 10.5059/yukigoseikyokaishi.76.45] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Akira Otaka
- Institutes of Biomedical Sciences and Graduate School of Pharmaceutical Sciences, Tokushima University
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11
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Belczyk-Ciesielska A, Csipak B, Hajdu B, Sparavier A, Asaka MN, Nagata K, Gyurcsik B, Bal W. Nickel(ii)-promoted specific hydrolysis of zinc finger proteins. Metallomics 2018; 10:1089-1098. [DOI: 10.1039/c8mt00098k] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The (S/T)XH sequence in Cys2His2zinc fingers can be hydrolytically cleaved by Ni(ii) ions. This reaction can be applied for purification, inhibition or activation of designed zinc finger fusion proteins.
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Affiliation(s)
| | - Brigitta Csipak
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- Szeged H-6720
- Hungary
| | - Bálint Hajdu
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- Szeged H-6720
- Hungary
| | | | - Masamitsu N. Asaka
- Nagata Special Laboratory
- Faculty of Medicine
- University of Tsukuba
- Tsukuba 305-8575
- Japan
| | - Kyosuke Nagata
- Nagata Special Laboratory
- Faculty of Medicine
- University of Tsukuba
- Tsukuba 305-8575
- Japan
| | - Béla Gyurcsik
- Department of Inorganic and Analytical Chemistry
- University of Szeged
- Szeged H-6720
- Hungary
| | - Wojciech Bal
- Institute of Biochemistry and Biophysics
- Polish Academy of Sciences
- Warsaw
- Poland
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12
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Yadav DK, Yadav N, Yadav S, Haque S, Tuteja N. An insight into fusion technology aiding efficient recombinant protein production for functional proteomics. Arch Biochem Biophys 2016; 612:57-77. [DOI: 10.1016/j.abb.2016.10.012] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Revised: 10/15/2016] [Accepted: 10/18/2016] [Indexed: 11/27/2022]
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13
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Metal assisted peptide bond hydrolysis: Chemistry, biotechnology and toxicological implications. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.02.009] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Tsuda Y, Shigenaga A, Tsuji K, Denda M, Sato K, Kitakaze K, Nakamura T, Inokuma T, Itoh K, Otaka A. Development of a Chemical Methodology for the Preparation of Peptide Thioesters Applicable to Naturally Occurring Peptides Using a Sequential Quadruple Acyl Transfer System. ChemistryOpen 2015; 4:448-52. [PMID: 26478838 PMCID: PMC4603404 DOI: 10.1002/open.201500086] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Indexed: 02/04/2023] Open
Abstract
Peptide thioesters are very useful in protein chemistry, and chemistry- and biochemistry-based protocols are used for the preparation of thioesters. Among such protocols, only a few biochemistry-based approaches have been use for naturally occurring peptide sequences. The development of chemistry-based protocols applicable to natural sequences remains a challenge, and the development of such methods would be a major contribution to protein science. Here, we describe the preparation of peptide thioesters using innovative methodology that features nickel(II)-mediated alcoholysis of a naturally occurring peptide sequence, followed by O−N and N−S acyl transfers. This protocol involves sequential quadruple acyl transfer, termed SQAT. Notably, the SQAT system consists of sequential chemical reactions that allow naturally occurring peptide sequences to be converted to thioesters without requiring an artificial chemical unit.
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Affiliation(s)
- Yusuke Tsuda
- Institute of Health Bioscience, Graduate School of PharmaceuticalSciences, Tokushima University Shomachi, Tokushima, 770-8505, Japan
| | - Akira Shigenaga
- Institute of Health Bioscience, Graduate School of PharmaceuticalSciences, Tokushima University Shomachi, Tokushima, 770-8505, Japan
| | - Kohei Tsuji
- Institute of Health Bioscience, Graduate School of PharmaceuticalSciences, Tokushima University Shomachi, Tokushima, 770-8505, Japan
| | - Masaya Denda
- Institute of Health Bioscience, Graduate School of PharmaceuticalSciences, Tokushima University Shomachi, Tokushima, 770-8505, Japan
| | - Kohei Sato
- Institute of Health Bioscience, Graduate School of PharmaceuticalSciences, Tokushima University Shomachi, Tokushima, 770-8505, Japan
| | - Keisuke Kitakaze
- Institute of Health Bioscience, Graduate School of PharmaceuticalSciences, Tokushima University Shomachi, Tokushima, 770-8505, Japan
| | - Takahiro Nakamura
- Institute of Health Bioscience, Graduate School of PharmaceuticalSciences, Tokushima University Shomachi, Tokushima, 770-8505, Japan
| | - Tsubasa Inokuma
- Institute of Health Bioscience, Graduate School of PharmaceuticalSciences, Tokushima University Shomachi, Tokushima, 770-8505, Japan
| | - Kohji Itoh
- Institute of Health Bioscience, Graduate School of PharmaceuticalSciences, Tokushima University Shomachi, Tokushima, 770-8505, Japan
| | - Akira Otaka
- Institute of Health Bioscience, Graduate School of PharmaceuticalSciences, Tokushima University Shomachi, Tokushima, 770-8505, Japan
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15
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Wezynfeld NE, Bossak K, Goch W, Bonna A, Bal W, Frączyk T. Human annexins A1, A2, and A8 as potential molecular targets for Ni(II) ions. Chem Res Toxicol 2014; 27:1996-2009. [PMID: 25330107 DOI: 10.1021/tx500337w] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Nickel is harmful for humans, but molecular mechanisms of its toxicity are far from being fully elucidated. One of such mechanisms may be associated with the Ni(II)-dependent peptide bond hydrolysis, which occurs before Ser/Thr in Ser/Thr-Xaa-His sequences. Human annexins A1, A2, and A8, proteins modulating the immune system, contain several such sequences. To test if these proteins are potential molecular targets for nickel toxicity we characterized the binding of Ni(II) ions and hydrolysis of peptides Ac-KALTGHLEE-am (A1-1), Ac-TKYSKHDMN-am (A1-2), and Ac-GVGTRHKAL-am (A1-3), from annexin A1, Ac-KMSTVHEIL-am (A2-1) and Ac-SALSGHLET-am (A2-2), from annexin A2, and Ac-VKSSSHFNP-am (A8-1), from annexin A8, using UV-vis and circular dichroism (CD) spectroscopies, potentiometry, isothermal titration calorimetry, high-performance liquid chromatography (HPLC), and electrospray ionization mass spectrometry (ESI-MS). We found that at physiological conditions (pH 7.4 and 37 °C) peptides A1-2, A1-3, A8-1, and to some extent A2-2 bind Ni(II) ions sufficiently strongly in 4N complexes and are hydrolyzed at sufficiently high rates to justify the notion that these annexins can undergo nickel hydrolysis in vivo. These results are discussed in the context of specific biochemical interactions of respective proteins. Our results also expand the knowledge about Ni(II) binding to histidine peptides by determination of thermodynamic parameters of this process and spectroscopic characterization of 3N complexes. Altogether, our results indicate that human annexins A1, A2, and A8 are potential molecular targets for nickel toxicity and help design appropriate cellular studies.
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Affiliation(s)
- Nina E Wezynfeld
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences , Pawińskiego 5a, 02-106 Warsaw, Poland
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16
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Atomic resolution structure of a protein prepared by non-enzymatic His-tag removal. Crystallographic and NMR study of GmSPI-2 inhibitor. PLoS One 2014; 9:e106936. [PMID: 25233114 PMCID: PMC4169406 DOI: 10.1371/journal.pone.0106936] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2014] [Accepted: 08/09/2014] [Indexed: 12/03/2022] Open
Abstract
Purification of suitable quantity of homogenous protein is very often the bottleneck in protein structural studies. Overexpression of a desired gene and attachment of enzymatically cleavable affinity tags to the protein of interest made a breakthrough in this field. Here we describe the structure of Galleria mellonella silk proteinase inhibitor 2 (GmSPI-2) determined both by X-ray diffraction and NMR spectroscopy methods. GmSPI-2 was purified using a new method consisting in non-enzymatic His-tag removal based on a highly specific peptide bond cleavage reaction assisted by Ni(II) ions. The X-ray crystal structure of GmSPI-2 was refined against diffraction data extending to 0.98 Å resolution measured at 100 K using synchrotron radiation. Anisotropic refinement with the removal of stereochemical restraints for the well-ordered parts of the structure converged with R factor of 10.57% and Rfree of 12.91%. The 3D structure of GmSPI-2 protein in solution was solved on the basis of 503 distance constraints, 10 hydrogen bonds and 26 torsion angle restraints. It exhibits good geometry and side-chain packing parameters. The models of the protein structure obtained by X-ray diffraction and NMR spectroscopy are very similar to each other and reveal the same β2αβ fold characteristic for Kazal-family serine proteinase inhibitors.
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17
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Podobas EI, Bonna A, Polkowska-Nowakowska A, Bal W. Dual catalytic role of the metal ion in nickel-assisted peptide bond hydrolysis. J Inorg Biochem 2014; 136:107-14. [DOI: 10.1016/j.jinorgbio.2014.03.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2013] [Revised: 03/08/2014] [Accepted: 03/10/2014] [Indexed: 10/25/2022]
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18
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Belczyk-Ciesielska A, Zawisza IA, Mital M, Bonna A, Bal W. Sequence-specific Cu(II)-dependent peptide bond hydrolysis: similarities and differences with the Ni(II)-dependent reaction. Inorg Chem 2014; 53:4639-46. [PMID: 24735221 DOI: 10.1021/ic5003176] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Potentiometry and UV-vis and circular dichroism spectroscopies were applied to characterize Cu(II) coordination to the Ac-GASRHWKFL-NH2 peptide. Using HPLC and ESI-MS, we demonstrated that Cu(II) ions cause selective hydrolysis of the Ala-Ser peptide bond in this peptide and characterized the pH and temperature dependence of the reaction. We found that Cu(II)-dependent hydrolysis occurs solely in 4N complexes, in which the equatorial coordination positions of the Cu(II) ion are saturated by peptide donor atoms, namely, the pyridine-like nitrogen of the His imidazole ring and three preceding peptide bond nitrogens. Analysis of the reaction products led to the conclusion that Cu(II)-dependent hydrolysis proceeds according to the mechanism demonstrated previously for Ni(II) ions (Kopera, E.; Krężel, A.; Protas, A. M.; Belczyk, A.; Bonna, A.; Wysłouch-Cieszyńska, A.; Poznański, J.; Bal, W. Inorg. Chem. 2010, 49, 6636-6645). However, the pseudo-first-order reaction rate found for Cu(II) is, on average, 100 times lower than that for Ni(II) ions. The greater ability of Cu(II) ions to form 4N complexes at lower pH partially compensates for this difference in rates, resulting in similar hydrolytic activities for the two ions around pH 7.
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Protas AM, Ariani HHN, Bonna A, Polkowska-Nowakowska A, Poznański J, Bal W. Sequence-specific Ni(II)-dependent peptide bond hydrolysis for protein engineering: Active sequence optimization. J Inorg Biochem 2013; 127:99-106. [DOI: 10.1016/j.jinorgbio.2013.07.037] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2013] [Revised: 07/27/2013] [Accepted: 07/27/2013] [Indexed: 10/26/2022]
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Peana M, Medici S, Nurchi VM, Crisponi G, Zoroddu MA. Nickel binding sites in histone proteins: Spectroscopic and structural characterization. Coord Chem Rev 2013. [DOI: 10.1016/j.ccr.2013.02.022] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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Hwang PM, Pan JS, Sykes BD. Targeted expression, purification, and cleavage of fusion proteins from inclusion bodies in Escherichia coli. FEBS Lett 2013; 588:247-52. [PMID: 24076468 DOI: 10.1016/j.febslet.2013.09.028] [Citation(s) in RCA: 71] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2013] [Accepted: 09/20/2013] [Indexed: 01/24/2023]
Abstract
Today, proteins are typically overexpressed using solubility-enhancing fusion tags that allow for affinity chromatographic purification and subsequent removal by site-specific protease cleavage. In this review, we present an alternative approach to protein production using fusion partners specifically designed to accumulate in insoluble inclusion bodies. The strategy is appropriate for the mass production of short peptides, intrinsically disordered proteins, and proteins that can be efficiently refolded in vitro. There are many fusion protein systems now available for insoluble expression: TrpLE, ketosteroid isomerase, PurF, and PagP, for example. The ideal fusion partner is effective at directing a wide variety of target proteins into inclusion bodies, accumulates in large quantities in a highly pure form, and is readily solubilized and purified in commonly used denaturants. Fusion partner removal under denaturing conditions is biochemically challenging, requiring harsh conditions (e.g., cyanogen bromide in 70% formic acid) that can result in unwanted protein modifications. Recent advances in metal ion-catalyzed peptide bond cleavage allow for more mild conditions, and some methods involving nickel or palladium will likely soon appear in more biological applications.
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Affiliation(s)
- Peter M Hwang
- Department of Biochemistry, University of Alberta, Edmonton, AB, Canada; Division of General Internal Medicine, Department of Medicine, University of Alberta, Edmonton, AB, Canada.
| | - Jonathan S Pan
- Department of Biochemistry, University of Alberta, Edmonton, AB, Canada
| | - Brian D Sykes
- Department of Biochemistry, University of Alberta, Edmonton, AB, Canada
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Schirrmeister J, Zocher S, Flor L, Göttfert M, Zehner S. The domain of unknown function DUF1521 exhibits metal ion-inducible autocleavage activity - a novel example from a putative effector protein ofVibrio coralliilyticusATCC BAA-450. FEMS Microbiol Lett 2013; 343:177-82. [DOI: 10.1111/1574-6968.12145] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Revised: 03/21/2013] [Accepted: 03/28/2013] [Indexed: 01/13/2023] Open
Affiliation(s)
| | - Sara Zocher
- Technische Universität Dresden; Institute of Genetics; Dresden; Germany
| | - Liane Flor
- Technische Universität Dresden; Institute of Genetics; Dresden; Germany
| | - Michael Göttfert
- Technische Universität Dresden; Institute of Genetics; Dresden; Germany
| | - Susanne Zehner
- Technische Universität Dresden; Institute of Genetics; Dresden; Germany
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Ariani HH, Polkowska-Nowakowska A, Bal W. Effect of d-Amino Acid Substitutions on Ni(II)-Assisted Peptide Bond Hydrolysis. Inorg Chem 2013; 52:2422-31. [DOI: 10.1021/ic3022672] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Hanieh H. Ariani
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106
Warsaw, Poland
| | | | - Wojciech Bal
- Institute of Biochemistry and Biophysics, Polish Academy of Sciences, Pawinskiego 5a, 02-106
Warsaw, Poland
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