title: Amino group modification inhibits ristocetin cofactor activity of human von Willebrand factor.
mesh_terms: D001779:Blood Coagulation Factors / Q000502:physiology*; D006801:Humans; D066298:In Vitro Techniques; D012310:Ristocetin; D013329:Structure-Activity Relationship; D014302:Trinitrobenzenesulfonic Acid; D014841:von Willebrand Factor / Q000502:physiology*
chemical_list: D001779:Blood Coagulation Factors; D014841:von Willebrand Factor; D012310:Ristocetin; D014302:Trinitrobenzenesulfonic Acid