the 120-kd glycoprotein , which could be labeled with 32p-orthophosphate and appeared to be noncovalently associated with the 140- and 180-kd proteins , cross reacted with antibodies to the beta-subunit ( band 3 ) of the avian integrin complex , itself a receptor or receptors for the ecm constituents ln , fn , and some collagens .
C0017968
glycoprotein
C0022984
ln