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幽门螺杆菌尿素酶抗原的分离和纯化 被引量:6

STUDY ON PURIFICATION OF H. PYLORI UREASE ANTIGEN
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摘要 本研究采用层析技术,以Sephadex G200分离幽门螺杆菌尿素酶,从幽门螺杆菌超声破碎物离心上清中一次提纯了尿素酶抗原,产物接近电泳纯并保持了良好的抗原性。我们对55份抗幽门螺杆菌抗体阴性标本和50份阳性标本检测发现,符合率达100%,假阴性和假阳性均为零;大样本临床标本检测也取得了很好的结果。提示此法纯化的抗原用于ELISA检测血清抗幽门螺杆菌抗体具有良好的应用前景,为大量用于幽门螺杆菌感染的临床诊断和流行病学调查奠定了基础。 H. pylori urease was purified with Sephadex G200 Colum from H. pylori that had subjected to ultrasonication. The products only contained H.pyloriurease (SDS-PAGE ; showed 30kD and 66kDH. pylori urease subunits only) and showed good antigenic characteristics. The further use of ELISA for detecting the antibodies aginst H. pylori showed extreme sensitivity and specificity.
出处 《中华微生物学和免疫学杂志》 CAS CSCD 北大核心 1995年第5期344-346,共3页 Chinese Journal of Microbiology and Immunology
基金 国家自然科学基金 卫生部青年基金资助
关键词 幽门螺杆菌 柱层析 尿素酶 免疫印迹 H.pylori Urease Column chromatography SDS-PAGE Western-blot
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参考文献1

  • 1金灵,生物化学与生物物理进展,1989年,16卷,148页

同被引文献21

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