in conclusion , these findings show clearly that cultured t lymphocytes use two independent receptors during attachment to fibronectin and that ( a ) alpha 5 beta 1 is the receptor for the rgd containing cell adhesion domain , and ( b ) alpha 4 beta 1 is the receptor for a carboxy-terminal cell adhesion region containing the heparin ii and iiics domains .
C0209606
alpha 4 beta 1
C0007577
the