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Literature DB >> 9098074

Novel Vibrio cholerae O139 genes involved in lipopolysaccharide biosynthesis.

U H Stroeher¹, G Parasivam, B K Dredge, P A Manning.

Abstract

The sequence of part of the rfb region of Vibrio cholerae serogroup O139 and the physical map of a 35-kb region of the O139 chromosome have been determined. The O139 rfb region presented contains a number of open reading frames which show similarities to other rfb and capsular biosynthesis genes found in members of the Enterobacteriaceae family and in V. cholerae O1. The cloned and sequenced region can complement the defects in O139 antigen biosynthesis in transposon insertions within the O139 rfb cluster. Linkage is demonstrated among IS1358 of V. cholerae O139, the rfb region, and the recently reported otnA and otnB genes (E. M. Bik, A. E. Bunschoten, R. D. Gouw, and F. R. Mooi, EMBO J. 14:209-216, 1995). In addition, the whole of this region has been linked to the rfaD gene. Furthermore, determination of the sequence flanking IS1358 has revealed homology to other rfb-like genes. The exact site of insertion with respect to rfaD is defined for the novel DNAs of both the Bengal and the Argentinian O139 isolates.

Entities: Chemical Species

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Year: 1997 PMID： 9098074 PMCID： PMC179025 DOI： 10.1128/jb.179.8.2740-2747.1997

Source DB: PubMed Journal: J Bacteriol ISSN： 0021-9193 Impact factor: 3.490

50 in total

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27 in total

1. Cloning and sequencing of the genes downstream of the wbf gene cluster of Vibrio cholerae serogroup O139 and analysis of the junction genes in other serogroups.

Authors: S Sozhamannan; Y K Deng; M Li; A Sulakvelidze; J B Kaper; J A Johnson; G B Nair; J G Morris
Journal: Infect Immun Date: 1999-10 Impact factor: 3.441

10. Evolutionary genetic analysis of the emergence of epidemic Vibrio cholerae isolates on the basis of comparative nucleotide sequence analysis and multilocus virulence gene profiles.

Authors: Yvonne A O'Shea; F Jerry Reen; Anne Marie Quirke; E Fidelma Boyd
Journal: J Clin Microbiol Date: 2004-10 Impact factor: 5.948

Novel Vibrio cholerae O139 genes involved in lipopolysaccharide biosynthesis.

1. Detection of specific sequences among DNA fragments separated by gel electrophoresis.

2. Preferential unequal recombination in the glyS region of the Escherichia coli chromosome.

3. Cholera isolates in relation to the "eighth pandemic".

4. A simple method for displaying the hydropathic character of a protein.

5. O-antigenic lipopolysaccharide of Vibrio cholerae O139 Bengal, a new epidemic strain for recent cholera in the Indian subcontinent.

6. Cloning and sequence of a region encoding a surface polysaccharide of Vibrio cholerae O139 and characterization of the insertion site in the chromosome of Vibrio cholerae O1.

7. A surface polysaccharide of Escherichia coli O111 contains O-antigen and inhibits agglutination of cells by O-antiserum.

8. A bacteriophage T7 RNA polymerase/promoter system for controlled exclusive expression of specific genes.

9. Morphological heterogeneity among Salmonella lipopolysaccharide chemotypes in silver-stained polyacrylamide gels.

10. Structural studies of the O-specific side-chain of the lipopolysaccharide from Escherichia coli O 55.

1. Cloning and sequencing of the genes downstream of the wbf gene cluster of Vibrio cholerae serogroup O139 and analysis of the junction genes in other serogroups.

2. Acquisition of the rfb-gnd cluster in evolution of Escherichia coli O55 and O157.

3. Genetic diversity and population structure of Vibrio cholerae.

4. Allelic diversity and population structure in Vibrio cholerae O139 Bengal based on nucleotide sequence analysis.

5. An epimerase gene essential for capsule synthesis in Vibrio vulnificus.

6. Transposon-derived Brucella abortus rough mutants are attenuated and exhibit reduced intracellular survival.

7. Molecular analysis of antibiotic resistance gene clusters in vibrio cholerae O139 and O1 SXT constins.

8. Emergence and evolution of Vibrio cholerae O139.

9. Structural and functional characterization of IS1358 from Vibrio cholerae.

10. Evolutionary genetic analysis of the emergence of epidemic Vibrio cholerae isolates on the basis of comparative nucleotide sequence analysis and multilocus virulence gene profiles.