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Cytokine. 2000 May;12(5):477-82.

Differential glycosylation of interleukin 2, the molecular basis for the NOD Idd3 type 1 diabetes gene?

Author information

1
Department of Autoimmune Diseases Research, Merck Research Laboratories, Rahway, New Jersey 07065, USA.

Abstract

The insulin-dependent diabetes (Idd) gene, Idd3, has been localised to a 0.35 cM region of chromosome 3 containing the structural gene for the cytokine interleukin 2 (IL-2). While variation of the N-terminal amino acid sequence of IL-2 has been shown to correlate with Idd3 allelic variation, differences in induction of proliferation by IL-2 allotypes have not been detected. In the current study, we examined the electrophoretic migration of IL-2 allotypes and have found two distinct patterns, consistent with differences in glycosylation, that correlate with diabetes-resistance and susceptibility. These findings strongly suggest that IL-2 variants may be functionally distinct.

PMID:
10857762
DOI:
10.1006/cyto.1999.0609
[Indexed for MEDLINE]

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