Inhibition of platelet collagen interactions by the C1s subcomponent of the first component of the first component of complement.
D000818:Animals; D001792:Blood Platelets / Q000502:physiology*; D002417:Cattle; D003094:Collagen / Q000378:metabolism* / Q000494:pharmacology; D003172:Complement C1; D004952:Esters; D005455:Fluorescent Antibody Technique; D006461:Hemolysis; D006801:Humans; D010973:Platelet Adhesiveness; D010974:Platelet Aggregation
D003172:Complement C1; D004952:Esters; D003094:Collagen