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Zhu HJ, Liu D, Tran VP, Wu Z, Jiang K, Zhu H, Zhang J, Gibbons C, Xue B, Shi H, Wang PG. N-Linked Glycosylation Prevents Deamidation of Glycopeptide and Glycoprotein. ACS Chem Biol 2020; 15:3197-3205. [PMID: 33270417 DOI: 10.1021/acschembio.0c00734] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Deamidation has been recognized as a common spontaneous pathway of protein degradation and a prevalent concern in the pharmaceutical industry; deamidation caused the reduction of protein/peptide drug efficacy and shelf life in several cases. More importantly, deamidation of physiological proteins is related to several human diseases and considered a "timer" for the diseases. N-linked glycosylation has a variety of significant biological functions, and it interestingly occurs right on the deamidation site-asparagine. It has been perceived that N-glycosylation could prevent deamidation, but experimental support is still lacking for clearly understanding the role of N-glycosylation on deamidation. Our results presented that deamidation is prevented by naturally occurring N-linked glycosylation. Glycopeptides and corresponding nonglycosylated peptides were used to compare their deamidation rates. All the nonglycosylated peptides have different half-lives ranging from one to 20 days, for the corresponding glycosylated peptides; all the results showed that the deamidation reaction was significantly reduced by the introduction of N-linked glycosylation. A glycoprotein, RNase B, also showed a significantly elongated deamidation half-life compared to nonglycosylated protein RNase A. At last, N-linked glycosylation on INGAP-P, a therapeutic peptide, increased the deamidation half-life of INGAP-P as well as its therapeutic potency.
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Affiliation(s)
- Hailiang Joshua Zhu
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Ding Liu
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Vy P. Tran
- Department of Biology, Georgia State University, Atlanta, Georgia 30303, United States
| | - Zhigang Wu
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Kuan Jiang
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - He Zhu
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Jiabin Zhang
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Christopher Gibbons
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
| | - Bingzhong Xue
- Department of Biology, Georgia State University, Atlanta, Georgia 30303, United States
| | - Hang Shi
- Department of Biology, Georgia State University, Atlanta, Georgia 30303, United States
| | - Peng George Wang
- Department of Chemistry, Georgia State University, Atlanta, Georgia 30303, United States
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Brückner C, Bunz SC, Imhof D, Neusüß C, Scriba GKE. Isomerization and epimerization of the aspartyl tetrapeptide Ala-Phe-Asp-GlyOH at pH 10-A CE study. Electrophoresis 2013; 34:2666-73. [DOI: 10.1002/elps.201200685] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2012] [Revised: 01/11/2013] [Accepted: 01/16/2013] [Indexed: 12/12/2022]
Affiliation(s)
- Christin Brückner
- Department of Pharmaceutical Chemistry; School of Pharmacy; Friedrich Schiller University Jena; Jena; Germany
| | | | - Diana Imhof
- Department of Pharmaceutical Chemistry I; School of Pharmacy; University of Bonn; Bonn; Germany
| | | | - Gerhard K. E. Scriba
- Department of Pharmaceutical Chemistry; School of Pharmacy; Friedrich Schiller University Jena; Jena; Germany
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Brückner C, Imhof D, Scriba GK. Capillary electrophoretic study of the degradation pathways and kinetics of the aspartyl model tetrapeptide Gly-Phe-Asp-GlyOH in alkaline solution. J Pharm Biomed Anal 2013; 76:96-103. [DOI: 10.1016/j.jpba.2012.12.012] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Revised: 12/08/2012] [Accepted: 12/10/2012] [Indexed: 10/27/2022]
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Brückner C, Fahr A, Imhof D, Scriba GK. Degradation Kinetics of an Aspartyl-Tripeptide-Derived Diketopiperazine under Forced Conditions. J Pharm Sci 2012; 101:4178-90. [DOI: 10.1002/jps.23272] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2012] [Revised: 05/13/2012] [Accepted: 07/02/2012] [Indexed: 12/23/2022]
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Zhao SS, Zhong X, Tie C, Chen DD. Capillary electrophoresis-mass spectrometry for analysis of complex samples. Proteomics 2012; 12:2991-3012. [DOI: 10.1002/pmic.201200221] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 07/10/2012] [Accepted: 07/18/2012] [Indexed: 12/20/2022]
Affiliation(s)
- Shuai Sherry Zhao
- Department of Chemistry; University of British Columbia; Vancouver BC Canada
| | - Xuefei Zhong
- Department of Chemistry; University of British Columbia; Vancouver BC Canada
| | - Cai Tie
- Department of Chemistry; University of British Columbia; Vancouver BC Canada
| | - David D.Y. Chen
- Department of Chemistry; University of British Columbia; Vancouver BC Canada
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CE-MS Identification of Amino Acid Sequence Inversion as a New Degradation Pathway of an Aspartyl Model Tripeptide. Chromatographia 2012. [DOI: 10.1007/s10337-012-2306-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Kašička V. Recent developments in CE and CEC of peptides (2009-2011). Electrophoresis 2011; 33:48-73. [DOI: 10.1002/elps.201100419] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2011] [Revised: 09/19/2011] [Accepted: 09/20/2011] [Indexed: 12/12/2022]
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Ludewig R, Nietzsche S, Scriba GKE. A weak cation-exchange monolith as stationary phase for the separation of peptide diastereomers by CEC. J Sep Sci 2010; 34:64-9. [DOI: 10.1002/jssc.201000616] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2010] [Revised: 09/30/2010] [Accepted: 09/30/2010] [Indexed: 11/11/2022]
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10
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Ludewig R, Dong J, Zou H, Scriba GKE. Separation of peptide diastereomers using CEC and a hydrophobic monolithic column. J Sep Sci 2010; 33:1085-9. [DOI: 10.1002/jssc.200900739] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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