type	Journal Article
authors	Matsui D, Fuhshuku KI, Nagamori S, Takata M, Asano Y
title	Isolation and characterization of racemase from Ensifer sp. 23-3 that acts on α-aminolactams and α-amino acid amides
journal	J Ind Microbiol Biotechnol
Activity	5.1.1.15
Family	5.1.1.15
sel	selected
ui	28929416
year	(2017)
volume	44
number	11
pages	1503-1510
keywords	Racemase; Racemization; α-Amino acid amide; α-Amino-ε-caprolactam; α-Aminolactam
abstract	Limited information is available on α-amino-ε-caprolactam (ACL) racemase (ACLR), a pyridoxal 5'-phosphate-dependent enzyme that acts on ACL and α-amino acid amides. In the present study, eight bacterial strains with the ability to racemize α-amino-ε-caprolactam were isolated and one of them was identified as Ensifer sp. strain 23-3. The gene for ACLR from Ensifer sp. 23-3 was cloned and expressed in Escherichia coli. The recombinant ACLR was then purified to homogeneity from the E. coli transformant harboring the ACLR gene from Ensifer sp. 23-3, and its properties were characterized. This enzyme acted not only on ACL but also on α-amino-δ-valerolactam, α-amino-ω-octalactam, α-aminobutyric acid amide, and alanine amide.
last changed	2018/04/03 14:54