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Arch Microbiol. 1996 Aug;166(2):128-31.

Sequence analysis of the gene encoding a novel L-2,4-diaminobutyrate decarboxylase of Acinetobacter baumannii: similarity to the group II amino acid decarboxylases.

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Faculty of Pharmaceutical Sciences, Okayama University, 1-1-1 Tsushima-naka, Okayama 700, Japan.


The gene (ddc) encoding a novel enzyme, l-2,4-diaminobutyrate decarboxylase (DABA-DC; EC 4.1.1.-) in Acinetobacter baumannii was sequenced, and an open reading frame of 1,530 nucleotides was detected. The sequence of 20 N-terminal amino acids of purified DABA-DC and of its proteolytic peptide fragments coincided with those deduced from the nucleotide sequence determined. Comparison of the predicted amino acid sequence of the A. baumannii enzyme with those of other pyridoxal 5'-phosphate-dependent decarboxylases revealed significant similarity to the group II amino acid decarboxylases and conservation of the putative pyridoxal 5'-phosphate-binding domain.

[Indexed for MEDLINE]

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