Characterization of Cg10062 from Corynebacterium glutamicum: implications for the evolution of cis-3-chloroacrylic acid dehalogenase activity in the tautomerase superfamily.

ABSTRACT: A 149-amino acid protein designated Cg10062 is encoded by a gene from Corynebacterium glutamicum. The physiological function of Cg10062 is unknown, and the gene encoding this protein has no obvious genomic context. Sequence analysis links Cg10062 to the cis-3-chloroacrylic acid dehalogenase ( cis-CaaD) family, one of the five known families of the tautomerase superfamily. The characterized tautomerase superfamily members have two distinctive characteristics: a beta-alpha-beta structure motif and a catalytic amino-terminal proline. Pro-1 is present in the Cg10062 amino acid sequence along with His-28, Arg-70, Arg-73, Tyr-103, and Glu-114, all of which have been implicated as critical residues for cis-CaaD activity. The gene for Cg10062 has been cloned and the protein overproduced, purified,

SUBMITTER: Poelarends GJ 

PROVIDER: S-EPMC2659011 | biostudies-literature | 2008 Aug

REPOSITORIES: biostudies-literature