Recombinant Human Interferon gamma receptor 1 (IFNGR1), Truncated

Uniprot Id

P15260

Target Species

Human

Target Name

IFNGR1

Target Full Name

Interferon gamma receptor 1

Target Function

Receptor subunit for interferon gamma/INFG that plays crucial roles in antimicrobial, antiviral, and antitumor responses by activating effector immune cells and enhancing antigen presentation. Associates with transmembrane accessory factor IFNGR2 to form a functional receptor. Upon ligand binding, the intracellular domain of IFNGR1 opens out to allow association of downstream signaling components JAK1 and JAK2. In turn, activated JAK1 phosphorylates IFNGR1 to form a docking site for STAT1. Subsequent phosphorylation of STAT1 leads to dimerization, translocation to the nucleus, and stimulation of target gene transcription. STAT3 can also be activated in a similar manner although activation seems weaker. IFNGR1 intracellular domain phosphorylation also provides a docking site for SOCS1 that regulates the JAK-STAT pathway by competing with STAT1 binding to IFNGR1.

Target Involvement

Immunodeficiency 27A (IMD27A); Immunodeficiency 27B (IMD27B)

Target Subcellular Location

Cell membrane; Single-pass type I membrane protein.

Target Protein Families

Type II cytokine receptor family

Target Research Area

Immunology

Target Synonyms

IFNGR1; Interferon gamma receptor 1; IFN-gamma receptor 1; IFN-gamma-R1; CDw119; Interferon gamma receptor alpha-chain; IFN-gamma-R-alpha; CD antigen CD119

Target Background

This gene (IFNGR1) encodes the ligand-binding chain (alpha) of the gamma interferon receptor. Human interferon-gamma receptor is a heterodimer of IFNGR1 and IFNGR2. A genetic variation in IFNGR1 is associated with susceptibility to Helicobacter pylori infection. In addition, defects in IFNGR1 are a cause of mendelian susceptibility to mycobacterial disease, also known as familial disseminated atypical mycobacterial infection.