| UniProt Protein 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. May regulate phagocytosis-induced apoptosis in extravasated neutrophils (PubMed:8986723). May play a role in mast cell development (PubMed:9862668). | 
| UniProt Code: | P05555 | 
| NCBI GenInfo Identifier: | 124956 | 
| NCBI Gene ID: | 16409 | 
| NCBI Accession: | P05555.2 | 
| UniProt Secondary Accession: | P05555,Q8CA73, | 
| UniProt Related Accession: | P05555 | 
| Molecular Weight: |  | 
| NCBI Full Name: | Integrin alpha-M | 
| NCBI Synonym Full Names: | integrin alpha M | 
| NCBI Official Symbol: | Itgam | 
| NCBI Official Synonym Symbols: | CR3; CR3A; MAC1; Cd11b; Ly-40; Mac-1; Mac-1a; CD11b/CD18; F730045J24Rik | 
| NCBI Protein Information: | integrin alpha-M | 
| UniProt Protein Name: | Integrin alpha-M | 
| UniProt Synonym Protein Names: | CD11 antigen-like family member B; CR-3 alpha chain; Cell surface glycoprotein MAC-1 subunit alpha; Leukocyte adhesion receptor MO1; CD_antigen: CD11b | 
| UniProt Gene Name: | Itgam |