Integrin alpha-1/beta-1 is a receptor for laminin and collagen. It recognizes the proline-hydroxylated sequence G-F-P-G-E-R in collagen. Involved in anchorage-dependent, negative regulation of EGF-stimulated cell growth. . This is the function of Ensembl gene identifier ENSG00000213949 (ITGA1, integrin subunit alpha 1).