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公开(公告)号:US20090311727A1
公开(公告)日:2009-12-17
申请号:US12425605
申请日:2009-04-17
申请人: MICHAEL I. WATKINS , GREGORY A. MARR , XIAOYUN YANG , RICHARD BRUEHL , DAMING SHAN , PATRICK F. COLEMAN
发明人: MICHAEL I. WATKINS , GREGORY A. MARR , XIAOYUN YANG , RICHARD BRUEHL , DAMING SHAN , PATRICK F. COLEMAN
IPC分类号: G01N33/53 , C07K14/415 , C07H21/04 , C12N15/63 , C12N5/10
CPC分类号: G01N33/564 , C07K14/415 , C07K2319/20 , C07K2319/21 , C07K2319/23 , C07K2319/70 , C12N9/1044 , G01N2333/415 , G01N2333/91085 , G01N2800/24
摘要: The present invention provides a method for determining whether a subject is suffering from celiac disease by contacting a sample of bodily fluid from the subject, with an antigen formed from a gliadin fusion protein immobilized on a solid support. The gliadin fusion protein of the antigen includes a recombinant deamidated gliadin linked to a tag such as Glutathione-S transferase (GST) protein. The antigen is prepared by immobilizing on the solid support the gliadin fusion protein via the tag. The antigen can further include tissue Transglutaminase (tTG) cross-linked to the gliadin fusion protein. When tTG is present, the tTG and recombinant deamidated gliadin are mixed together prior to immobilization to the solid phase.
摘要翻译: 本发明提供了一种用于通过使来自受试者的体液样品与固定在固体支持物上的麦醇溶蛋白融合蛋白形成的抗原来确定受试者是否患有乳糜泻的方法。 抗原的麦醇溶蛋白融合蛋白包括与诸如谷胱甘肽-S转移酶(GST)蛋白质的标签连接的重组脱酰胺麦醇溶蛋白。 通过经由标签固定在固体支持物上的麦醇溶蛋白融合蛋白来制备抗原。 抗原可以进一步包括与麦醇溶蛋白融合蛋白交联的组织转谷氨酰胺酶(tTG)。 当存在tTG时,将tTG和重组脱酰基麦醇溶蛋白在固定固相之前混合在一起。