Phosphorylation of ITIM motif in SIRP alpha

Stable Identifier
R-HSA-391156
Type
Reaction [transition]
Species
Homo sapiens
Compartment
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Various growth factors and events such as integrin-mediated cell adhesion to extracellular matrix (ECM) proteins induce the tyrosine phosphorylation of SIRP alpha. The cytoplasmic tail of SIRP alpha has two ITIMs with four tyrosine residues that are potential sites for phosphorylation. Phosphorylation is not dependent on CD47 engagement but the presence of CD47 may enhance the effect. Src family kinases may be involved in the phosphorylation.

Participants
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Catalyst Activity
Catalyst Activity
Title
protein tyrosine kinase activity of SRC-1, PTK2 [cytosol]
Physical Entity
Activity
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Created