Integrin alpha-M (Itgam) is a 1153-residue protein from Mus musculus. This is its AlphaFold structure prediction, created 1 Aug 2025. UniProt accession: P05555.
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The mean pLDDT of this model is 86.1 (confident overall). pLDDT is AlphaFold's per-residue confidence score from 0 to 100. In MolViewer, choose the B-factor color scheme to color the model by pLDDT, because AlphaFold stores it in the B-factor column.
| pLDDT band | Meaning | Share of residues |
|---|---|---|
| Above 90 | Very high: backbone and side chains are usually accurate | 50% |
| 70 to 90 | Confident: backbone generally right | 40% |
| 50 to 70 | Low: treat with caution | 7% |
| Below 50 | Very low: often disordered regions | 3% |
What pLDDT means and how to read it
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 and pathogens (By similarity). 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, and factor X. It recognizes P1 and P2 peptides of fibrinogen gamma chain. Regulates neutrophil migration. In association with beta subunit ITGB2/CD18, required for CD177-PRTN3-mediated activation of TNF primed neutrophils. Integrin ITGAM/ITGB2 is also a receptor for ICAM1 ligand ensuring…
Heterodimer of an alpha and a beta subunit. ITGAM associates with ITGB2. Found in a complex with CD177 and ITGB2/CD18. Interacts with JAM3. Interacts with THBD. Interacts with complement factor H/CFH; this interaction mediates adhesion of neutrophils to pathogens leading to pathogen clearance (By similarity). Interacts with TMEM268; this interaction inhibits ITGAM degradation via the…
Cell membrane, Membrane raft
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