Wang H, Shao SH. Detection and analysis of
OipA,
HopX and
HopW of Helicobacter pylori.
Shijie Huaren Xiaohua Zazhi 2007;
15:3710-3714. [DOI:
10.11569/wcjd.v15.i35.3710]
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Abstract
AIM: To detect three genes of Helicobacter pylori (H pylori) outer membrane proteins in NCTC11637 and clinical strains, and to make a homologous comparison of the nucleotides in strains 26695 and J99.
METHODS: The three genes were detected with PCR in H pylori strains NCTC11637 and 27. The PCR products were sent for nucleotide sequence analysis, and compared with those in strains 26695 and J99 using GenBank.
RESULTS: The sequences of the genes of interest were obtained in strain NCTC11637. Among 27 clinical samples, OipA and HopX genes were detected in 10 and 23 H pylori strains, respectively. Only the HopW gene was obtained in 27 H pylori strains. Moreover, in NCTC11637, the homology of the OipA gene between NCTC11637 and 26695, and J99 in nucleotide acid was 95.38% and 94.60%, respectively, which was lower than the homology between 26695 and J99, at 95.50%. The homology of the HopX gene between NCTC11637 and 26695, and J99 in nucleotide acid was 94.90% and 95.15%, respectively, which was lower than the homology between 26695 and J99, at 96.49%. The homology of the HopW gene between NCTC11637 and 26695, and J99 in nucleotide acid was 97.38% and 94.90%, respectively. The homology between 26695 and J99 was 95.20%.
CONCLUSION: The gene sequences can be obtained in NCTC11637 and clinical strains. The HopW gene sequence is conservative.
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