Integrins alpha-4/beta-1 (VLA-4) and alpha-4/beta-7 are receptors for fibronectin. They recognize one or more domains within the alternatively spliced CS-1 and CS-5 regions of fibronectin. They are also receptors for VCAM1. Integrin alpha-4/beta-1 recognizes the sequence Q-I-D-S in VCAM1. Integrin alpha-4/beta-7 is also a receptor for MADCAM1. It recognizes the sequence L-D-T in MADCAM1. On activated endothelial cells integrin VLA-4 triggers homotypic aggregation for most VLA-4-positive leukocyte cell lines. It may also participate in cytolytic T-cell interactions with target cells.1) Iida J., Meijne A. M. L., Oegema T. R. Jr., Yednock T. A., Kovach N. L., Furcht L. T., McCarthy J. B. J. Biol. Chem. 273:5955-5962 (1998) Liu S., Thomas S. M., Woodside D. G., Rose D. M., Kiosses W. B., Pfaff M., Ginsberg M. H. Nature 402:676-681 (1999)
Immunogen
LPAM-1 (Integrin a4, CD49d) antibody was raised against a peptide sequence around aa.1024~1028 (Y-I-N-S-K) derived from Human LPAM-1 (Integrin α4, CD49d).