JIANG Zheng, et al. The cloning and recombinant vector constructing of lower-weight outer membrane protein encoding gene of Helicobacter pylori[J]. Journal of Chongqing Medical University, 2002,(3):243-246.
JIANG Zheng, et al. The cloning and recombinant vector constructing of lower-weight outer membrane protein encoding gene of Helicobacter pylori[J]. Journal of Chongqing Medical University, 2002,(3):243-246.DOI:
Objective: To construct a recombinant vector which could express 18kDa outer membrane protein (OMP) from Helicobacter pylori (Hp)
and explore the possibility to obtain the vaccine conferring protection from Hp infection and a diagnostic reagent kit quickly detecting Hp infection. Methods: The gene encoding the structural 18kDa outer membrane protein of Hp was amplified from Hp chromosomal DNA by PCR
and inserted in the prokaryotic expression vector pQE30. The recombinant vector was transformed into the Top10 E. coli strain
а()selected and identified in order to be transformed into DH5PREP4strain and expressed recombinant protein. Results: The gene of 18kDa OMP was amplified to be 528 base pairs
compared with Toom et al reports: 2% of the gene was mutated
1.68% of amino acid residues was changed
but the homogenicity was about 98% between them. Conclusion: This result suggested that recombinant vector expressed 18kDa OMP may be a potential source for the vaccine and diagnostic reagent kit of Hp.
关键词
幽门螺杆菌外膜蛋白基因原核表达
Keywords
Helicobacter pyloriOuter membrane protein geneprokaryotic expression