The rfaD locus: a region of rearrangement in Vibrio cholerae O139.
Gene
; 185(1): 43-7, 1997 Jan 31.
Article
em En
| MEDLINE
| ID: mdl-9034311
ABSTRACT
We analyzed the rfaD locus of the novel epidemic Vibrio cholerae strain O139, a putative region of rearrangement. This region includes 4 orfs in the same orientation. Two orfs, rfaD(O139) and orf2(O139) were almost identical to those described in V. cholerae O1. In contrast, the two other orfs upstream from rfaD(O139), designated orfA(O139) and orfB(O139), were absent from V. cholerae O1, but present in environmental strains of V. cholerae O22, O141 and O155. These results suggest that a chromosomal rearrangement might have occurred in the vicinity of rfaD in V. cholerae O1, resulting in the emergence of V. cholerae O139. The putative source of exogenous DNA might have been V. cholerae O22, O141 and O155.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Vibrio cholerae
/
Carboidratos Epimerases
/
Rearranjo Gênico
/
Antígenos O
/
Antígenos de Bactérias
Idioma:
En
Revista:
Gene
Ano de publicação:
1997
Tipo de documento:
Article
País de afiliação:
França