T-cell surface glycoprotein CD3 epsilon chain
T-cell surface glycoprotein CD3 epsilon chain
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T-cell surface glycoprotein CD3 epsilon chain

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T-cell surface glycoprotein CD3 epsilon chain

CD3e molecule, epsilon also known as CD3E is a polypeptide which in humans is encoded by the CD3E gene which resides on chromosome 11.

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 severe immunodeficiency. This gene has also been linked to a susceptibility to type I diabetes in women.

T-cell surface glycoprotein CD3 epsilon chain has been shown to interact with TOP2B, CD3EAP and NCK2.

This article incorporates text from the United States National Library of Medicine, which is in the public domain.

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