Rabbit anti-Human CISH Polyclonal Antibody

Uniprot Id

Q9NSE2

Target Species

Human

Target Name

CISH

Target Full Name

Cytokine-inducible SH2-containing protein

Target Function

SOCS family proteins form part of a classical negative feedback system that regulates cytokine signal transduction. CIS is involved in the negative regulation of cytokines that signal through the JAK-STAT5 pathway such as erythropoietin, prolactin and interleukin 3 (IL3) receptor. Inhibits STAT5 trans-activation by suppressing its tyrosine phosphorylation. May be a substrate-recognition component of a SCF-like ECS (Elongin BC-CUL2/5-SOCS-box protein) E3 ubiquitin-protein ligase complex which mediates the ubiquitination and subsequent proteasomal degradation of target proteins.

Target Tissue Specificity

Expressed in various epithelial tissues. Abundantly expressed in liver and kidney, and to a lesser extent in lung. The tissue distribution of isoforms 1 and 1B is distinct.

Target Research Area

Signal Transduction

Target Synonyms

BACTS2; cis 1; CIS; CIS-1; CIS1; Cish; CISH_HUMAN; Cytokine inducible inhibitor of signaling type 1B; Cytokine inducible SH2 containing protein; Cytokine-inducible SH2-containing protein; G18; Protein G18; SOCS; Suppressor of cytokine signaling

Target Background

The protein encoded by this gene contains a SH2 domain and a SOCS box domain. The protein thus belongs to the cytokine-induced STAT inhibitor (CIS), also known as suppressor of cytokine signaling (SOCS) or STAT-induced STAT inhibitor (SSI), protein family. CIS family members are known to be cytokine-inducible negative regulators of cytokine signaling. The expression of this gene can be induced by IL2, IL3, GM-CSF and EPO in hematopoietic cells. Proteasome-mediated degradation of this protein has been shown to be involved in the inactivation of the erythropoietin receptor. Multiple transcript variants encoding different isoforms have been found for this gene.