Bioscience, Biotechnology and Biochemistry p. 688 - 697 (1999)
Update date:2022-08-11
Topics:
Sakai, Yasuyoshi
Ishikawa, Junko
Fukasaka, Shunji
Yurimoto, Hiroya
Mitsui, Ryoji
Yanase, Hideshi
Kato, Nobuo
A carboxylesterase that is responsible for conversion of 1,4-butanediol diacrylate (BDA) to 4-hydroxybutyl acrylate (4HBA) was found in Brevibacterium lines IFO 12171, and purified to homogeneity. The purified enzyme was active toward a variety of diesters of ethylene glycol, 1,4-butanediol, and 1,6-hexanediol. The Km and kcat of the enzyme for BDA were 3.04 mM and 203,000 s-1, respectively. The reaction with the purified enzyme gave 98 mM 4HBA from 100 mM BDA for 60 min. The enzyme gene was cloned from the chromosomal DNA of the bacterium. The open reading frame encoding the enzyme was 1176 bp long, corresponding to a protein of 393 amino acid residues (molecular mass=42,569Da). The deduced amino acid sequence contained the tetra peptide motif sequence, STTK, and the serine residue was confirmed to be the catalytic center of BDA esterase by site-directed mutagenesis for several amino acid residues. The gene was expressed in Escherichia coli under the control of the lac promoter, and the gene product (a fusion protein with 6 amino acid residues from β-galactosidase) showed the same catalytic properties as the enzyme from the parent strain.
View MoreAstaTech ( Chengdu) BioPharmaceutical Corp.
website:http://www.astabiochem.cn/
Contact:+86-15680585308
Address:SICHUAN CHENGDU
WUXI KINGHAN BIO-MEDICAL&CHEMICAL INC.
Contact:13861062998
Address:Room 1316,No.1619 Huishan Avenue,Wuxi,China
Shijiazhuang Frontierchem Co., Ltd.
Contact:+86-311-89271196
Address:4-4-202 No.15 Biandian Street,Shijiazhuang
Ceresking Ecology & Technology co.,ltd
Contact:86 22 66218397
Address:Room 1613, Zheshang Mansion, No. 1988, Yingbin Avenue, Binhai New District, Tianjin,China.
suzhou chukai pharmateach co,.ltd
Contact:86-512-88812511
Address:Building 3, Wujiang Scientific Innovation Park, 2358 Changan Rd, Wujiang 215200, Jiangsu Province, P. R. China
Doi:10.1016/j.apcata.2013.01.042
(2013)Doi:10.14233/ajchem.2017.20356
(2017)Doi:10.1002/ejoc.201900719
(2019)Doi:10.1039/d1ra02269e
(2021)Doi:10.1016/S0022-328X(00)86321-4
(1968)Doi:10.1039/jr9540001836
(1954)