NCIt definition : Integrin alpha-9 (1035 aa, 114 kDa) is encoded by the human ITGA9 gene. This protein
is involved in cell-matrix binding and cell adhesion-dependent signaling.;
NCIt note : Like integrin alpha-4 (ITGA4), ITGA9 is not cleaved and lacks an I domain.; A heterodimer consisting of integrins alpha-9 (ITGA9) and beta-1 (ITGB1) is the functional,
cell membrane-bound receptor for vascular cell adhesion protein 1 (VCAM1), thrombospondin-1
(THBS1), cytotactin and osteopontin.;