PMID:9339543

Citation	Yamamoto, Y, Miwa, Y, Miyoshi, K, Furuyama, J and Ohmori, H (1997) The Escherichia coli ldcC gene encodes another lysine decarboxylase, probably a constitutive enzyme. Genes Genet. Syst. 72:167-72
Abstract	A gene (designated ldcC) mapped at 4.6 min on the Escherichia coli chromosome codes for a protein of 713 amino acids (aa) that shows strong similarities in both size and amino-acid sequence (69% identical residues and 85% conserved residues) to lysine decarboxylase (LDC) from E. coli (CadA, acid-inducible LDC, 715 aa) or from Hafnia alvei (739 aa). A pUC18 derivative carrying the ldcC gene conferred high LDC activities on an E. coli strain devoid of the functional cadA gene, even when the bacteria were grown under non-inducing conditions at physiological pH. Thus, the gene encodes another lysine decarboxylase, probably a constitutively expressed enzyme, the presence of which was suggested from the previous observations that low LDC activities were detectable in cadA- mutant and non-induced wild-type cells.
Links	PubMed
Keywords	Bacterial Proteins/genetics; Base Sequence; Carboxy-Lyases/genetics; DNA, Bacterial/genetics; Escherichia coli/enzymology; Escherichia coli/genetics; Gene Expression Regulation, Bacterial; Genes, Bacterial; Genetic Complementation Test; Molecular Sequence Data; Sequence Alignment; Sequence Homology, Amino Acid
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