Suppressor of cytokine signaling 7 (SOCS7)

Suppressor of cytokine signaling 7 (SOCS7) is a member of the SOCS family of intracellular proteins that function as negative regulators of cytokine signaling. SOCS7 acts by recruiting the ubiquitin transferase system via its C-terminal SOCS box, targeting proteins such as IRS1 and DAB1 for ubiquitin-mediated degradation, thereby downregulating signaling pathways like insulin and growth factor signaling. SOCS7 can inhibit prolactin, growth hormone, and leptin signaling by binding to and sequestering STAT3 or STAT5, attenuating their function. It is involved in regulating glucose homeostasis, brain development, and fat cell differentiation and is primarily localized in the cytosol/cytoplasm. SOCS7 does not currently qualify as a classic therapeutic target (receptor, enzyme), but its modulatory roles in key metabolic and developmental pathways have implicated it in diseases such as diabetes and cancer[3][5][1][2].

Other names

Suppressor of cytokine signaling 7SOCS7NAP4SOCS-7NAP-4NCK-associated protein 4NCKAP4Nck, Ash and phospholipase C gamma-binding protein

Proteasomal degradation via E3 ubiquitin ligase complex formation; SH2-domain-mediated recognition and inhibition of phosphorylated signaling proteins; sequestration of STAT transcription factors