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Gao H, Shi M, Wang R, Wang C, Shao C, Gu Y, Yu W. A widely compatible expression system for the production of highly O-GlcNAcylated recombinant protein in Escherichia coli. Glycobiology 2019; 28:949-957. [PMID: 30462203 DOI: 10.1093/glycob/cwy077] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Accepted: 08/22/2018] [Indexed: 02/06/2023] Open
Abstract
O-GlcNAcylation is a ubiquitous and dynamic post-translational modification on serine/threonine residues of nucleocytoplasmic proteins in metazoa, which plays a critical role in numerous physiological and pathological processes. But the O-GlcNAcylation on most proteins is often substoichiometric, which hinders the functional study of the O-GlcNAcylation. This study aimed to improve the production of highly O-GlcNAcylated recombinant proteins in Escherichia coli (E. coli). To achieve this goal, we constructed a bacterial artificial chromosome-based chloramphenicol-resistant expression vector co-expressing O-GlcNAc transferase (OGT) and key enzymes (phosphoglucose mutase, GlmM and N-acetylglucosamine-1-phosphate uridyltransferase, GlmU) of the uridine diphosphate N-acetylglucosamine (UDP-GlcNAc) synthesis pathway in E. coli, which can effectively increase the O-GlcNAcylation of the OGT target protein expressed by another vector. The results revealed that the expression of GlmM and GlmU increases the cellular concentration of UDP-GlcNAc in E. coli, which markedly enhanced the activity of the co-expressed OGT to its target proteins, such as H2B, p53 and TAB1. Altogether, we established a widely compatible E. coli expression system for producing highly O-GlcNAcylated protein, which could be used for modifying OGT target proteins expressed by almost any commercial expression vectors in E. coli. This new expression system provides possibility for investigating the roles of O-GlcNAcylation in the enzymatic activity, protein-protein interaction and structure of OGT target proteins.
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Affiliation(s)
- Hong Gao
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Wenhai Road, Aoshanwei, Qingdao, China
| | - Minghui Shi
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Wenhai Road, Aoshanwei, Qingdao, China
| | - Ruihong Wang
- Outpatient Department, Qingdao Central Hospital, 127 Siliu Road, Qingdao, China
| | - Chaojie Wang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Wenhai Road, Aoshanwei, Qingdao, China.,Key Laboratory of Glycoscience & Glycotechnology of Shandong Province, Qingdao, China
| | - Changlun Shao
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Wenhai Road, Aoshanwei, Qingdao, China.,Key Laboratory of Glycoscience & Glycotechnology of Shandong Province, Qingdao, China
| | - Yuchao Gu
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Wenhai Road, Aoshanwei, Qingdao, China.,Key Laboratory of Glycoscience & Glycotechnology of Shandong Province, Qingdao, China
| | - Wengong Yu
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, 5 Yushan Road, Qingdao, China.,Laboratory for Marine Drugs and Bioproducts of Qingdao National Laboratory for Marine Science and Technology, Wenhai Road, Aoshanwei, Qingdao, China.,Key Laboratory of Glycoscience & Glycotechnology of Shandong Province, Qingdao, China
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Zhai Y, Liang M, Fang J, Wang X, Guan W, Liu XW, Wang P, Wang F. NahK/GlmU fusion enzyme: characterization and one-step enzymatic synthesis of UDP-N-acetylglucosamine. Biotechnol Lett 2012; 34:1321-6. [PMID: 22456903 DOI: 10.1007/s10529-012-0910-y] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Accepted: 03/14/2012] [Indexed: 10/28/2022]
Abstract
The availability of uridine 5'-diphosphate N-acetylglucosamine (UDP-GlcNAc) is a prerequisite for the GlcNAc-transferase-catalyzed glycosylation reaction. UDP-GlcNAc has already been synthesized using an N-acetylhexosamine 1-kinase (NahK) and a GlcNAc-1-P uridyltransferase (truncated GlmU) and here, a fusion enzyme was constructed with truncated GlmU and NahK. After determination of the optimum catalytic condition (pH 8.0 at 40 °C), the fusion enzyme was used to synthesize UDP-GlcNAc in a single step with a yield of 88 % from GlcNAc, ATP and UTP. Furthermore, a simplified purification method was demonstrated using separation by gel filtration after by-product digestion with alkaline phosphatase. An overall yield of 77 % and a purity of over 90 % were achieved.
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Abstract
This review describes the various manifestations of the pyrimidine system (alkylated, glycosylated, benzo-annelated.). These comprise pyrimidine nucleosides as well as alkaloids and antibiotics--some of them have been discovered and isolated from natural sources already long time ago, others have been reported very recently. A short overview on pyrimidine syntheses (prebiotic synthesis, biosynthesis, and metabolism) is given. The biological activities of most of the pyrimidine analogs are briefly described, and, in some cases, syntheses are formulated.
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Affiliation(s)
- Irene M Lagoja
- Laboratory of Medicinal Chemistry, Rega Institute for Medical Research, Katholieke Universiteit Leuven, Minderbroedersstraat 10, B-3000 Leuven.
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Becker HF, Thellend A, Piffeteau A, Vidal-Cros A. Chemoenzymatic synthesis of stable isotope labeled UDP-N-[2H]-acetyl-glucosamine and [2H]-acetyl-chitooligosaccharides. Glycoconj J 2006; 23:687-92. [PMID: 17123165 DOI: 10.1007/s10719-006-9018-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2006] [Revised: 09/05/2006] [Accepted: 09/06/2006] [Indexed: 10/23/2022]
Abstract
Labeled UDP-GlcNAc and chitooligosaccharides should be powerful tools for studies of N-acetylglucosaminyltransferase such as chitin synthases. We describe here a rapid, inexpensive and a common strategie for the chemoenzymatic synthesis of uridine 5'-diphospho-N-[(2)H]-acetyl-glucosamine and the chemical preparation of N-[(2)H]-acetyl chitooligosaccharides (from 2 to 5 mers). Deuterated UDP-GlcNAc analogue was tested as chitin synthase substrate and it exhibited an incorporation level in chitin as the natural substrate. Deuterium labeling of carbohydrates present different advantages: it is a stable isotope and allows glycosyltransferase mechanism studies by a mass spectrometry approach.
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Affiliation(s)
- Hubert F Becker
- Synthèse, Structure et Fonction de Molécules Bioactives UMR7613, Université Pierre et Marie Curie, Tour 44-45, 3ème étage, 4 place Jussieu, 75252, Paris, France.
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Hyland SA, Anderson MS. A high-throughput solid-phase extraction assay capable of measuring diverse polyprenyl phosphate: sugar-1-phosphate transferases as exemplified by the WecA, MraY, and MurG proteins. Anal Biochem 2003; 317:156-65. [PMID: 12758253 DOI: 10.1016/s0003-2697(03)00088-5] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The bacterial proteins WecA and MraY are members of the polyprenyl phosphate:N-acetylhexosamine-1-phosphate transferase family, each of which catalyzes the transfer of a specific hexosamine 1-P from a soluble UDP-hexosamine substrate to a bactoprenyl phosphate carrier at the membrane surface. Currently, assays designed to quantitate the activity of these enzymes rely on paper chromatography or liquid-liquid extractions or are specialized to a few members of the family. We describe a generalizable, high-throughput, one-pot assay for these activities that uses a solid-liquid bead-based separation system to selectively adsorb the highly hydrophobic products of reaction. By judicious choice of radiolabeled UDP-hexosamine precursor, the same format can be used to quantitate not only diverse members of this transferase family, but also enzymes that catalyze the further modification of these transferase products. This possibility is exemplified by the MurG protein of bacterial cell wall synthesis, which catalyzes the addition of an N-acetylglucosamine residue to the product of the MraY reaction. Thus, the use of this flexible assay tool will allow a critical biochemical and enzymologic analysis of many such membrane-bound transferases in a similar setting.
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Affiliation(s)
- Sheryl A Hyland
- Department of Atherosclerosis and Endocrinology, Merck Research Laboratories, P.O. Box 2000, Rahway, NJ 07065, USA
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