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Background:The protein encoded by this gene is the CD3-epsilon polypeptide , which together with CD3-gamma , -delta and -zeta , and the T-cell receptor alpha/beta and gamma/delta heterodimers , forms the T-cell receptor-CD3 complex. This complex plays an important role in coupling antigen recognition to several intracellular signal-transduction pathways. The genes encoding the epsilon , gamma and delta polypeptides are located in the same cluster on chromosome 11. The epsilon polypeptide plays an essential role in T-cell development. Defects in this gene cause immunodeficiency. This gene has also been linked to a susceptibility to type I diabetes in women. [provided by RefSeq , Jul 2008] ,






