Aliases for PSTPIP1 Gene
External Ids for PSTPIP1 Gene
Previous GeneCards Identifiers for PSTPIP1 Gene
The protein encoded by this gene binds to the cytoplasmic tail of CD2, an effector of T cell activation and adhesion, negatively affecting CD2-triggered T cell activation. The encoded protein appears to be a scaffold protein and a regulator of the actin cytoskeleton. It has also been shown to bind ABL1, PTPN18, WAS, CD2AP, and PTPN12. Mutations in this gene are a cause of PAPA syndrome. [provided by RefSeq, Jul 2008]
GeneCards Summary for PSTPIP1 Gene
PSTPIP1 (Proline-Serine-Threonine Phosphatase Interacting Protein 1) is a Protein Coding gene. Diseases associated with PSTPIP1 include pyogenic arthritis, pyoderma gangrenosum and acne and pyogenic sterile arthritis, pyoderma gangrenosum, and acne. Among its related pathways are Immune System and B cell receptor signaling pathway (KEGG). GO annotations related to this gene include actin binding and protein phosphatase binding. An important paralog of this gene is PSTPIP2.
UniProtKB/Swiss-Prot for PSTPIP1 Gene
Involved in regulation of the actin cytoskeleton. May regulate WAS actin-bundling activity. Bridges the interaction between ABL1 and PTPN18 leading to ABL1 dephosphorylation. May play a role as a scaffold protein between PTPN12 and WAS and allow PTPN12 to dephosphorylate WAS. Has the potential to physically couple CD2 and CD2AP to WAS. Acts downstream of CD2 and CD2AP to recruit WAS to the T-cell:APC contact site so as to promote the actin polymerization required for synapse induction during T-cell activation (By similarity). Down-regulates CD2-stimulated adhesion through the coupling of PTPN12 to CD2. Also has a role in innate immunity and the inflammatory response. Recruited to inflammasomes by MEFV. Induces formation of pyroptosomes, large supramolecular structures composed of oligomerized PYCARD dimers which form prior to inflammatory apoptosis. Binding to MEFV allows MEFV to bind to PYCARD and facilitates pyroptosome formation. Regulates endocytosis and cell migration in neutrophils.