Objective To express the Hp1501 protein of Helicobacter pylori NCTC11637 strain in prokaryotic cells and purify the expressed product.Methods The Hp1501a sequence in encoding region of Hp1501 gene of H.pylori NCTC11637 strain was amplified by PCR and cloned into vector pQE30.The constructed recombinant plasmid pQE30-Hp1501a was transformed to E.coli XL1-blue and induced with IPTG,and the expressed recombinant protein was analyzed for form then purified by Ni-NTAHis column chromatography.Results Restriction ...