|
1
|
Exploiting the Reversibility of GTBP1 Catalyzed One-pot Reactions for the Synergistical Synthesis of Ponasterone A and Phenolic Glycosides. BIOTECHNOL BIOPROC E 2021. [DOI: 10.1007/s12257-020-0135-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
|
2
|
Li B, Chang S, Jin D, Zhang S, Chen T, Pan X, Fan B, Lv K, He X. Ca 2+ assisted glycosylation of phenolic compounds by phenolic-UDP-glycosyltransferase from Bacillus subtilis PI18. Int J Biol Macromol 2019; 135:373-378. [PMID: 31108143 DOI: 10.1016/j.ijbiomac.2019.05.098] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 05/16/2019] [Accepted: 05/16/2019] [Indexed: 12/27/2022]
Abstract
A phenolic-UDP-glycosyltransferase Bs-PUGT from Bacillus subtilis PI18 was cloned and expressed in Escherichia coli BL21 (DE3). The purified Bs-PUGT could catalyze the glycosylation of tyrosol, 4-hydroxybenzyl alcohol, 2-hydroxybenzyl alcohol, caffeic acid, cinnamic alcohol, ferulic acid, and so on. This enzyme showed a high activity and stability over a broad pH range and was sensitive to temperature. Studies on the kinetic parameters indicated that the affinity of Bs-PUGT to UDP-G (Km) and its catalytic efficiency (Kcat) increased by 1.5-fold and 1.7-fold, respectively, with the addition of 10 mM Ca2+. The most effective glycosylation of caffeic acid catalyzed by whole-cell E. coli/Bs-PUGT was achieved with a molar yield of 78.3% in a system with pH 8.0, 30 °C, 25 g/L sucrose, 10 mM Ca2+, and 0.5 g/L substrate concentration. The addition of Ca2+ increased the molar yield of caffeic acid glucosides and shortened the reaction. This work proposes a strategy for the efficient glycosylation of phenolic compounds by microbe-derived glycosyltransferase assisted by metal ions.
Collapse
Affiliation(s)
- Bingfeng Li
- School of Biology and Environment, Nanjing Polytechnic Institute, 625 Geguan Road, Nanjing 210048, Jiangsu, China
| | - Siyuan Chang
- School of Biology and Environment, Nanjing Polytechnic Institute, 625 Geguan Road, Nanjing 210048, Jiangsu, China; College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhunan Road, Nanjing 211816, Jiangsu, China
| | - Di Jin
- School of Biology and Environment, Nanjing Polytechnic Institute, 625 Geguan Road, Nanjing 210048, Jiangsu, China
| | - Sen Zhang
- Jiangsu Collaboration Innovation Center of Chinese Medical Resources Industrialization, College of Pharmacy, Nanjing University of Chinese Medicine, 138 Xianlin Road, Nanjing 210023, Jiangsu, China
| | - Tianyi Chen
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhunan Road, Nanjing 211816, Jiangsu, China
| | - Xin Pan
- Department of Cardiology, The Second Affiliated Hospital of Yangzhou University, Yangzhou 225001, Jiangsu, China
| | - Bo Fan
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhunan Road, Nanjing 211816, Jiangsu, China
| | - Kemin Lv
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, 30 Puzhunan Road, Nanjing 211816, Jiangsu, China
| | - Xuejun He
- School of Biology and Environment, Nanjing Polytechnic Institute, 625 Geguan Road, Nanjing 210048, Jiangsu, China.
| |
Collapse
|
|
3
|
Li B, He X, Zhang S, Chang S, He B. Efficient synthesis of 4-O-β-d-glucopyranosylferulic acid from ferulic acid by whole cells harboring glycosyltransferase GTBP1. Biochem Eng J 2018. [DOI: 10.1016/j.bej.2017.11.014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|