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Lei B, Wang S, Zhang X, Chen T, Lin Y. Novel protein ligase based on dual split intein. Biochem Biophys Res Commun 2024; 720:150097. [PMID: 38754162 DOI: 10.1016/j.bbrc.2024.150097] [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] [Received: 04/18/2024] [Accepted: 05/08/2024] [Indexed: 05/18/2024]
Abstract
Inteins are unique single-turnover enzymes that can excise themselves from the precursor protein without the aid of any external cofactors or energy. In most cases, inteins are covalently linked with the extein sequences and protein splicing happens spontaneously. In this study, a novel protein ligation system was developed based on two atypical split inteins without cross reaction, in which the large segments of one S1 and one S11 split intein fusion protein acted as a protein ligase, the small segments (only several amino acids long) was fused to the N-extein and C-extein, respectively. The splicing activity was demonstrated in E. coli and in vitro with different extein sequences, which showed ∼15% splicing efficiency in vitro. The protein trans-splicing in vitro was further optimized, and possible reaction explanations were explored. As a proof of concept, we expect this approach to expand the scope of trans-splicing-based protein engineering and provide new clues for intein based protein ligase.
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Affiliation(s)
- Bing Lei
- College of Biological Science and Medical Engineering, Donghua University, Shanghai, 201620, PR China
| | - Suyang Wang
- College of Biological Science and Medical Engineering, Donghua University, Shanghai, 201620, PR China
| | - Xiaomeng Zhang
- College of Biological Science and Medical Engineering, Donghua University, Shanghai, 201620, PR China
| | - Tianqi Chen
- College of Biological Science and Medical Engineering, Donghua University, Shanghai, 201620, PR China
| | - Ying Lin
- College of Biological Science and Medical Engineering, Donghua University, Shanghai, 201620, PR China.
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Xu M, Wang S, Zhan Q, Lin Y. Conditional protein splicing triggered by SUMO protease. Biochem Biophys Res Commun 2023; 655:44-49. [PMID: 36924678 DOI: 10.1016/j.bbrc.2023.03.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 03/09/2023] [Indexed: 03/12/2023]
Abstract
Conditional protein splicing is a powerful biotechnological tool that can be used to post-translationally control the activity of target proteins. Here we demonstrated a novel conditional protein splicing approach in which the small ubiquitin-like modifier (SUMO) protease induced the splicing of an atypical split intein. The engineered Ter DnaE-3 S11 split intein which has a small C-intein segment with only 6 amino acids was used in this study. A SUMO tag was fused to the N-terminus of the C-intein to inhibit the protein trans-splicing in vitro. The splicing products could be detected in 15 min with the addition of SUMO protease by western blotting and the splicing efficiency was ∼4-fold higher than the control without SUMO protease for overnight reaction. This engineered Ter DnaE-3 S11 split intein-mediated protein trans-splicing had been further shown to be triggered by SUMO protease in different exteins in vitro. Our study provides new insights into the regulation of protein splicing and is a promising tool for the control of protein structure and function in vitro.
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Affiliation(s)
- Minghui Xu
- College of Biological Science and Medical Engineering, Donghua University, Shanghai, 201620, PR China
| | - Suyang Wang
- College of Biological Science and Medical Engineering, Donghua University, Shanghai, 201620, PR China
| | - Qin Zhan
- College of Biological Science and Medical Engineering, Donghua University, Shanghai, 201620, PR China
| | - Ying Lin
- College of Biological Science and Medical Engineering, Donghua University, Shanghai, 201620, PR China.
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Li X, Zhang L, Wang S, Liu X, Lin Y. Site-specific internal protein labeling through trans-splicing. Int J Biol Macromol 2021; 186:40-46. [PMID: 34246886 DOI: 10.1016/j.ijbiomac.2021.07.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 06/26/2021] [Accepted: 07/01/2021] [Indexed: 10/20/2022]
Abstract
Atypical S1 and S11 split inteins have been used for N-terminal or C-terminal protein labeling. Here we reported a novel site-specific internal protein labeling method based on two atypical split inteins, Ter DnaE3 S11 and Rma DnaB S1. Protein-peptide trans-splicing activity was first demonstrated in vitro between a short peptide (Flag tag, FLAG) and two recombinant proteins (Maltose binding protein, MBP, and Thioredoxin, Trx) by trans-splicing between MBP-TE3S11N (MBP-N fragment of Ter DnaE3 S11), TE3S11C-FLAG-RBS1N (C fragment of Ter DnaE3 S11-FLAG-N fragment of Rma DnaB S1), and RBS1C-Trx (C fragment of Rma DnaB S1-Trx). To minimize the middle synthetic peptide (TE3S11C-linker-RBS1N), we reduced the number of native extein amino acids, which may play a role in protein trans-splicing. The results showed at least 3 (CKG) native extein amino acids were required for detectable trans-splicing activity. This method was further demonstrated to be effective in facilitating the incorporation of fluorescent probe (FITC) to the internal site of recombinant protein, generating the FITC-labeled protein. Besides the fluorescent group, these two split inteins can also be useful for adding any desirable chemical groups into a protein of interest, which may include biotin, modified and unnatural amino acids, or drug molecules.
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Affiliation(s)
- Xue Li
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China
| | - Lu Zhang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China
| | - Suyang Wang
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China
| | - Xiangqin Liu
- Department of Biochemistry and Molecular Biology, Dalhousie University, Halifax, Nova Scotia B3H 4R2, Canada
| | - Ying Lin
- College of Chemistry, Chemical Engineering and Biotechnology, Donghua University, Shanghai 201620, PR China.
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Miura D, Kimura H, Tsugawa W, Ikebukuro K, Sode K, Asano R. Rapid, convenient, and highly sensitive detection of human hemoglobin in serum using a high-affinity bivalent antibody-enzyme complex. Talanta 2021; 234:122638. [PMID: 34364447 DOI: 10.1016/j.talanta.2021.122638] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2021] [Revised: 06/16/2021] [Accepted: 06/19/2021] [Indexed: 10/21/2022]
Abstract
Human hemoglobin (Hb) is a biomarker of several diseases, and monitoring of Hb levels is required during emergent surgery. However, rapid and sensitive Hb detection methods are yet to be developed. The present study established a rapid, convenient, and highly sensitive detection method for Hb in human serum using a bivalent antibody-enzyme complex (AEC). AECs are promising sensing elements because of their ability to bind specific targets and their catalytic activity that produce signals. We recently reported a convenient and universal method to fabricate bivalent AECs with two antibody fragments, using the SpyCatcher/SpyTag system. The present study applied a bivalent AEC for highly sensitive and quantitative detection of human Hb. The bivalent anti-Hb AEC was successfully prepared by incubating both N- and C-terminus SpyCatcher-fused glucose dehydrogenase and SpyTag-fused anti-Hb single-chain variable fragments at 4 °C. As expected, the bivalent AEC for Hb with a multimeric structure showed higher affinity than the monovalent AEC, by means of avidity effects, unlike that for soluble epidermal growth factor receptor with a monomeric structure; this contributed to a great improvement in sensitivity. Finally, we established a rapid and wash-free homogeneous electrochemical detection system for Hb by integrating magnetic beads. The linear range of the system completely covered the clinically required Hb levels, even in human serum. This technology provides an ideal point-of-care test for Hb and other multimeric biomarkers.
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Affiliation(s)
- Daimei Miura
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo, 184-8588, Japan
| | - Hayato Kimura
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo, 184-8588, Japan
| | - Wakako Tsugawa
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo, 184-8588, Japan
| | - Kazunori Ikebukuro
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo, 184-8588, Japan
| | - Koji Sode
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, NC, 27599, USA
| | - Ryutaro Asano
- Department of Biotechnology and Life Science, Graduate School of Engineering, Tokyo University of Agriculture and Technology, Tokyo, 184-8588, Japan.
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Rapid and homogeneous electrochemical detection by fabricating a high affinity bispecific antibody-enzyme complex using two Catcher/Tag systems. Biosens Bioelectron 2021; 175:112885. [DOI: 10.1016/j.bios.2020.112885] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 11/27/2020] [Accepted: 12/07/2020] [Indexed: 02/08/2023]
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Kimura H, Asano R, Tsukamoto N, Tsugawa W, Sode K. Convenient and Universal Fabrication Method for Antibody–Enzyme Complexes as Sensing Elements Using the SpyCatcher/SpyTag System. Anal Chem 2018; 90:14500-14506. [DOI: 10.1021/acs.analchem.8b04344] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
| | | | | | | | - Koji Sode
- Joint Department of Biomedical Engineering, University of North Carolina at Chapel Hill and North Carolina State University, Chapel Hill, North Carolina 27599, United States
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Zhou Y, Rising A, Johansson J, Meng Q. Production and Properties of Triple Chimeric Spidroins. Biomacromolecules 2018; 19:2825-2833. [DOI: 10.1021/acs.biomac.8b00402] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Affiliation(s)
- Yizhong Zhou
- Institute of Biological Sciences and Biotechnology, Donghua University, Shanghai 201620, People’s Republic of China
| | - Anna Rising
- Department of Anatomy, Physiology and Biochemistry, Swedish University of Agricultural Sciences, Uppsala, Sweden
- Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet, Stockholm, Sweden
| | - Jan Johansson
- Department of Neurobiology, Care Sciences and Society (NVS), Karolinska Institutet, Stockholm, Sweden
| | - Qing Meng
- Institute of Biological Sciences and Biotechnology, Donghua University, Shanghai 201620, People’s Republic of China
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