Suzuki_2002_Biosci.Biotechnol.Biochem_66_1682

Reference

Title : Primary structure and catalytic properties of a cold-active esterase from a psychrotroph, Acinetobacter sp. strain No. 6. isolated from Siberian soil - Suzuki_2002_Biosci.Biotechnol.Biochem_66_1682
Author(s) : Suzuki T , Nakayama T , Kurihara T , Nishino T , Esaki N
Ref : Biosci Biotechnol Biochem , 66 :1682 , 2002
Abstract :

We cloned a gene coding for a cold-active esterase from a genomic library of Acinetobacter sp. strain No. 6, a psychrotroph isolated from Siberian soil. The gene, aest, encoded a protein of 301 amino acid residues, the deduced sequence of which had less than 17% identity to sequences of known esterases and lipases. However, the esterase seemed to belong to the alpha/beta hydrolase superfamily, because it contained a sequence, Gly-Xaa-Ser-Xaa-Gly (with Xaa an arbitrary amino acid residue), found in most serine hydrolases of this superfamily. Sequence comparison earlier suggested a weak phylogenetic relationship of gene product AEST to the EST group of the esterase-lipase family, which has been found only in eukaryotes. The aest gene was expressed in Escherichia coli BL21(DE3) cells under the control of the T7 promoter, and the expression product was purified to homogeneity and characterized. It catalyzed the hydrolysis of esters with short-chain acyl groups and had lower activation energy and lower thermostability than do mesophilic enzymes, as expected from the cold-adapted nature of this enzyme.

PubMedSearch : Suzuki_2002_Biosci.Biotechnol.Biochem_66_1682
PubMedID: 12353628
Gene_locus related to this paper: acisp-AEST

Related information

Gene_locus acisp-AEST

Citations formats

Suzuki T, Nakayama T, Kurihara T, Nishino T, Esaki N (2002)
Primary structure and catalytic properties of a cold-active esterase from a psychrotroph, Acinetobacter sp. strain No. 6. isolated from Siberian soil
Biosci Biotechnol Biochem 66 :1682

Suzuki T, Nakayama T, Kurihara T, Nishino T, Esaki N (2002)
Biosci Biotechnol Biochem 66 :1682