Symbol Ornatin InterPro IPR002463 PDB RCSB PDB; PDBe; PDBj | Pfam PF02088 Pfam structures PDBsum structure summary | |
In molecular biology, ornatin is a potent glycoprotein IIb-IIIa (GP IIb-IIIa) antagonist and platelet aggregation inhibitor isolated from Placobdella ornata (Turtle leech). The protein is 41-52 amino acids in length and contains the RGD recognition motif common in adhesion proteins, and 6 conserved cysteine residues. These form three disulphide bonds, which are required for activity. The sequences of ornatin B, C, D and E are highly similar, while A2 and A3 are less similar, lacking the N-terminal 9 residues. Ornatins share ~40% identity with decorsin, a GP IIb-IIIa antagonist isolated from the leech (Macrobdella decora).
References
Ornatin Wikipedia(Text) CC BY-SA