RECOMBINANT DEAMIDATED GLIADIN ANTIGEN

The present invention provides a method for determining whether a subj ect is suffering from celiac disease by contacting a sample of bodily fluid from the subject, with an antigen formed from a hexamer of a gliadin fusion protein immobilized on a solid support. The gliadin fusion protein of the ant...

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Bibliographische Detailangaben
Hauptverfasser: SHAN, DAMING, DESAI, URVEE, WALKER, ROGER, LU, YABIN
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:The present invention provides a method for determining whether a subj ect is suffering from celiac disease by contacting a sample of bodily fluid from the subject, with an antigen formed from a hexamer of 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 the gliadin fusion protein on the solid support. 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.