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Sirpa (Tyrosine-protein phosphatase non-receptor type substrate 1)
FEATURES
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DESCRIPTION
Also known as SHPS1_RAT, Sirpa, Bit, Mfr, Ptpns1, Shps1, Sirp. Immunoglobulin-like cell surface receptor for CD47. Acts as docking protein and induces translocation of PTPN6, PTPN11 and other binding partners from the cytosol to the plasma membrane. Supports adhesion of cerebellar neurons, neurite outgrowth and glial cell attachment. May play a key role in intracellular signaling during synaptogenesis and in synaptic function. Involved in the negative regulation of receptor tyrosine kinase-coupled cellular responses induced by cell adhesion, growth factors or insulin. Mediates negative regulation of phagocytosis, mast cell activation and dendritic cell activation. CD47 binding prevents maturation of immature dendritic cells and inhibits cytokine production by mature dendritic cells. May play a role in the release of nitric oxide by macrophages (By similarity). Binds PTPN11 when tyrosine-phosphorylated, except in macrophages, where it primarily binds PTPN6. Binds GRB2 in vitro. Binds FGR. Binds JAK2 irrespective of its phosphorylation status and forms a stable complex. Binds SCAP1 and/or SCAP2. The resulting complex recruits FYB1. Binds PTK2B (By similarity).
Also known as SHPS1_RAT, Sirpa, Bit, Mfr, Ptpns1, Shps1, Sirp. Immunoglobulin-like cell surface receptor for CD47. Acts as docking protein and induces translocation of PTPN6, PTPN11 and other binding partners from the cytosol to the plasma membrane. Supports adhesion of cerebellar neurons, neurite outgrowth and glial cell attachment. May play a key ... More
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Sirpa

Tyrosine-protein phosphatase non-receptor type substrate 1

Molecular Synopsis