using a newly developed radioactive crosslinking reagent , n-succinimidyl-3- [ ( 2-nitro-4-azidophenyl ) -2-aminoethyldithio ] propionate , we observed crosslinking between thrombospondin released from the platelets and surface-bound fibronectin or collagen .
C0076560
thrombospondin
C0005821
platelets