Common gamma chain

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interleukin 2 receptor, gamma (severe combined immunodeficiency)
Identifiers
Symbol IL2RG
Alt. Symbols SCIDX1, IMD4
Entrez 3561
HUGO 6010
OMIM 308380
RefSeq NM_000206
UniProt P31785
Other data
Locus Chr. X q13

Common gamma chainc) is a cytokine receptor subunit that is located on the surface of certain sub-sets of lymphocytes (white blood cells).

Contents

Structure

It has one end outside the cell like an antenna and the other end inside to transmit signals to the cell's nucleus.

Ligands

The common gamma chain partners with other ligand-specific receptors to direct lymphocytes to respond to cytokines including IL-2, IL-4, IL-7, IL-9, IL-15 and IL-21. [1]

Function

Lymphocytes expressing the common gamma chain can form functional receptors for these cytokine proteins, which transmit signals from one cell to another and direct programs of cellular differentiation.

Clinical significance

A deficiency is associated with severe combined immunodeficiency.

References

  1. Asao H, Okuyama C, Kumaki S, et al (2001). "Cutting edge: the common gamma-chain is an indispensable subunit of the IL-21 receptor complex". J. Immunol. 167 (1): 1-5. PMID 11418623.

External links


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