SPSB2

This gene encodes a member of a subfamily of proteins containing a central SPRY (repeats in splA and RyR) domain and a C-terminal suppressor of cytokine signaling (SOCS) box. This protein plays a role in cell signaling. This gene is present in a gene-rich cluster on chromosome 12p13 in the vicinity of the CD4 antigen and triosephosphate isomerase genes. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Feb 2016]

Full Name

SplA/Ryanodine Receptor Domain And SOCS Box Containing 2

Function

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 (PubMed:15601820, PubMed:21199876).
Negatively regulates nitric oxide (NO) production and limits cellular toxicity in activated macrophages by mediating the ubiquitination and proteasomal degradation of NOS2 (PubMed:21199876).
Acts as a bridge which links NOS2 with the ECS E3 ubiquitin ligase complex components ELOC and CUL5 (PubMed:21199876).

Biological Process

Biological Process intracellular signal transductionIEA:InterPro
Biological Process proteasome-mediated ubiquitin-dependent protein catabolic processManual Assertion Based On ExperimentIBA:GO_Central
Biological Process protein ubiquitinationManual Assertion Based On ExperimentIDA:UniProtKB
Biological Process ubiquitin-dependent protein catabolic processManual Assertion Based On ExperimentIDA:UniProtKB

Cellular Location

Cytoplasm
Cytoplasm, cytosol
Exhibits a diffuse cytosolic localization.