Patent ID: 8981059
Filing Date: 2015-03-17
Classification: C07K,Y10T

Abstract:
1. A platelet aggregation inducing substance comprising as an active ingredient an un-crosslinked polypeptide having a peptide fragment represented by formula (1) (component A): wherein n represents an integer of from 20 to 5,000, wherein the peptide fragment of formula (1) is selected from the group consisting of -(Pro-Pro-Gly)- (Component B) and -(Pro-Hyp-Gly)- (Component C), wherein the molar ratio of the Component B:Component C in said peptide fragment is 10/90 to 0/100, and wherein said un-crosslinked polypeptide is capable of inducing said platelet aggregation even in the presence of an inhibitory amount of aspirin, as compared to collagen.