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Germline mutations in TGM2 do not contribute to coeliac disease susceptibility in the Swedish population
Linköping University, Faculty of Health Sciences. Linköping University, Department of Molecular and Clinical Medicine, Pediatrics.
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2001 (English)In: European Journal of Gastroenterology and Hepathology, ISSN 0954-691X, Vol. 13, no 12, 1477-1479 p.Article in journal (Refereed) Published
Abstract [en]

Objective: Coeliac disease (CD) shows a strong genetic predisposition involving HLA-DQ2 and non-HLA components. Tissue transglutaminase, encoded by TGM2, occupies a central role in the CD pathogenesis, necessary for the deamidation of specific glutamine residues of a-gliadin creating a T-cell epitope that binds with increased affinity to DQ2. To investigate whether germline mutations in TGM2 contribute to disease susceptibility we have carried out a comprehensive analysis of the gene in 52 patients with CD. Design: Blood samples were collected from 52 children with biopsy proven CD attending one Swedish centre. DNA was estracted from lymphocytes and all exons and intronexon boundaries of the TGM2 gene and the alternatively spliced form of the gene were screened for mutations. Methods: Mutational analysis was undertaken by a combination of conformational specific gel electrophoresis and direct sequencing. Results: Three novel polymorphisms were identified but no pathogenic mutations were detected. Conclusions: There is no evidence from this study that mutations in TGM2, which lead to an altered protein, contribute to CD susceptibility.

Place, publisher, year, edition, pages
2001. Vol. 13, no 12, 1477-1479 p.
National Category
Medical and Health Sciences
Identifiers
URN: urn:nbn:se:liu:diva-25969DOI: 10.1097/00042737-200112000-00011Local ID: 10417OAI: oai:DiVA.org:liu-25969DiVA: diva2:246517
Available from: 2009-10-08 Created: 2009-10-08 Last updated: 2011-01-13

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Stenhammar, Lars

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