c5b-9 assembly caused secretory fusion of the alpha-granule membrane with the plasma membrane and the release of membrane vesicles ( approximately 0.1-micron diameter ) that contained the plasma membrane glycoproteins ( gp ) gp ib and gp iib-iiia as well as the alpha-granule membrane protein gmp-140 .
C0007603
plasma
C0016011
gp iib-iiia