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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

The minisatellite in the diabetes susceptibility locus IDDM2 regulates insulin transcription.

Genetic susceptibility to insulin-dependent diabetes mellitus (IDDM) is inherited as a polygenic trait. One of the loci implicated in IDDM is a polymorphic minisatellite 5' of the human insulin ( INS) gene on chromosome 11. This insulin-linked polymorphic region (ILPR) is composed of tandemly repeated sequences, which fall into three size classes: IDDM is strongly associated with short ILPR alleles. We now show that the ILPR is capable of transducing a transcriptional signal in pancreatic beta-cells, with a long ILPR possessing greater activity than a short ILPR. The ILPR contains numerous high-affinity binding sites for the transcription factor Pur-1, and transcriptional activation by Pur-1 is modulated by naturally occurring sequences in the ILPR. Our results demonstrate a possible function for this unique minisatellite, which may have implications for type 1 diabetes.[1]

References

  1. The minisatellite in the diabetes susceptibility locus IDDM2 regulates insulin transcription. Kennedy, G.C., German, M.S., Rutter, W.J. Nat. Genet. (1995) [Pubmed]
 
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