Integrin alpha-M (P05555)

Uniprot ID P05555
Protein Name Integrin alpha-M
Gene Name Itgam
Species Mus musculus (Mouse)
Signal peptide(a) Y Secretome P(b) 0.0
Function Integrin ITGAM/ITGB2 is implicated in various adhesive interactions of monocytes, macrophages and granulocytes as well as in mediating the uptake of complement-coated particles. It is identical with CR-3, the receptor for the iC3b fragment of the third complement component. It probably recognizes the R-G-D peptide in C3b. Integrin ITGAM/ITGB2 is also a receptor for fibrinogen, factor X and ICAM1. It recognizes P1 and P2 peptides of fibrinogen gamma chain. Regulates neutrophil migration (PubMed:8986723, PubMed:9382884, PubMed:9862668). In association with beta subunit ITGB2/CD18, required for CD177-PRTN3-mediated activation of TNF primed neutrophils (By similarity). May regulate phagocytosis-induced apoptosis in extravasated neutrophils (PubMed:8986723). May play a role in mast cell development (PubMed:9862668). .
GO - Molecular function
  • complement component C3b binding : IGI:ARUK-UCL
  • heat shock protein binding : ISO:MGI
  • heparan sulfate proteoglycan binding : IDA:MGI
  • heparin binding : IDA:MGI
  • metal ion binding : IEA:UniProtKB-KW
  • opsonin binding : IDA:MGI
  • protein heterodimerization activity : ISO:MGI
GO - Biological process
  • activated T cell proliferation : IMP:MGI
  • amyloid-beta clearance : IMP:ARUK-UCL
  • cell adhesion : IMP:MGI
  • cell-cell adhesion : IGI:MGI
  • cellular extravasation : IMP:MGI
  • integrin-mediated signaling pathway : IEA:UniProtKB-KW
  • leukocyte adhesion to vascular endothelial cell : IMP:UniProtKB
  • leukocyte cell-cell adhesion : IMP:MGI
  • leukocyte migration involved in inflammatory response : IMP:MGI
  • microglia development : IDA:MGI
  • microglial cell activation : IMP:ARUK-UCL
  • negative regulation of dopamine metabolic process : IDA:ARUK-UCL
  • neutrophil apoptotic process : IMP:UniProtKB
  • neutrophil chemotaxis : IMP:MGI
  • phagocytosis : IMP:UniProtKB
  • phagocytosis, engulfment : IMP:ARUK-UCL
  • positive regulation of mast cell differentiation : IMP:UniProtKB
  • positive regulation of microglial cell activation : IMP:ARUK-UCL
  • positive regulation of neuron death : IMP:ARUK-UCL
  • positive regulation of neutrophil degranulation : ISO:MGI
  • positive regulation of oxidative stress-induced neuron death : IMP:ARUK-UCL
  • positive regulation of prostaglandin-E synthase activity : IMP:ARUK-UCL
  • positive regulation of protein targeting to membrane : IMP:ARUK-UCL
  • positive regulation of superoxide anion generation : IMP:ARUK-UCL
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(a) The Signal peptide D-score cutoff for "YES"(having signal peptide) is 0.45.
(b) Non-classically secreted proteins should obtain an NN-score(Neural Networks score) exceeding the normal threshold of 0.5, but not at the same time be predicted to contain a signal peptide.