Home / Production Assistant, Diabetes In Control (page 6)

Production Assistant, Diabetes In Control

International Textbook of Diabetes Mellitus, 4th Ed., Excerpt #167: Molecular Genetics of Type 1 Diabetes Part 4

The CTLA4 gene on chromosome 2q33.2 encodes a transmembrane co-receptor expressed on the surface of T cells. This functions as a negative regulator of T-cell activation via interaction with the B7 molecule on antigen-presenting cells (Figure 30.3). The G allele of the +49A/G SNP in exon 1 of CTLA4 has been implicated as a susceptibility marker for T1DM, but was rejected as a causal SNP by a fine-mapping study, which showed that its effect could be explained by more strongly associated variants in a 6.1 kb noncoding region, 3′ of the gene.

Read More »