ISSN:
1617-4623
Keywords:
Protein export
;
Pathogenicity
;
DNA sequence
;
Xanthomonas campestris pv. campestris
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary The nucleotide sequence was determined of a 5.3 kb region of the Xanthomonas campestris pathovar campestris genome carrying a gene cluster encoding protein secretion and pathogenicity functions. A putative promoter sequence and five open reading frames (ORF) which may be part of an operon were revealed. The five predicted primary translation products comprise 531, 390, 147, 169 and 138 amino acids with Mr values of 58854, 42299, 15548, 18214 and 15108 respectively. A sixth, partial ORF is also present. Between ORF1 and ORF2 is a sequence of unknown function showing 7 by duplications. The deduced amino acid sequence of ORF1 is related to the Klebsiella pneumoniae PulE protein, to the Bacillus subtilis ComG ORF1 and to the Agrobacterium tumefaciens VirB ORF11 products. In addition, the deduced amino acid sequence of ORF2 showed homology to the Pu1F and to the ComG ORF2 products. The proteins encoded by ORF3, 4 and 5 showed amino acid homology to PulG, H and I products respectively. The proteins encoded by ORF2, 3, 4 and 5 showed significant hydrophobic domains which may represent membrane-spanning regions. By contrast the protein encoded by ORF1 was largely hydrophilic and had two putative nucleoside triphosphate binding sites.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00267456
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