An antagonist of the thrombin receptor
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Thrombin Receptor Peptide Ligand (trifluoroacetate salt)

Item No. 24995

Technical Information
Formal Name
L-alanyl-L-phenylalanyl-L-leucyl-L-alanyl-L-arginyl-L-alanyl-L-alanine, trifluoroacetate salt
Synonyms
  • AFLARAA
  • Ala-Phe-Leu-Ala-Arg-Ala-Ala
Molecular Formula
C33H54N10O8 • XCF3COOH
Formula Weight
Purity
≥95%
A lyophilized powder
Water: 1 mg/ml
SMILES
N[C@@H](C)C(N[C@@H](CC1=CC=CC=C1)C(N[C@H](C(N[C@@H](C)C(N[C@H](C(N[C@@H](C)C(N[C@@H](C)C(O)=O)=O)=O)CCCNC(N)=N)=O)=O)CC(C)C)=O)=O.FC(F)(C(O)=O)F
InChi Code
InChI=1S/C33H54N10O8.C2HF3O2/c1-17(2)15-24(43-31(49)25(42-26(44)18(3)34)16-22-11-8-7-9-12-22)30(48)39-20(5)28(46)41-23(13-10-14-37-33(35)36)29(47)38-19(4)27(45)40-21(6)32(50)51;3-2(4,5)1(6)7/h7-9,11-12,17-21,23-25H,10,13-16,34H2,1-6H3,(H,38,47)(H,39,48)(H,40,45)(H,41,46)(H,42,44)(H,43,49)(H,50,51)(H4,35,36,37);(H,6,7)/t18-,19-,20-,21-,23-,24-,25-;/m0./s1
InChi Key
NYJFFJOZEDVBPN-WUQYVZKUSA-N
Shipping & Storage Information
Storage
-20°C
Shipping
Room temperature in continental US; may vary elsewhere
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    Product Description

    Thrombin receptor peptide ligand is antagonist of the thrombin receptor (EC50s = 16-33 µM to inhibit platelet aggregation in vitro).1 It inhibits α-thrombin and platelet aggregation induced by thrombin receptor activating peptide (TRAP; Item No. 24125) in vitro when used at a concentration of 32 µM but does not affect platelet aggregation induced by ADP or collagen. It also inhibits thrombin- and TRAP-induced proliferation of vascular smooth muscle cells (VSMCs).2 Thrombin receptor peptide ligand (100 µmol/kg bolus, i.v., plus 900 µmol/kg infusion) inhibits arterial thrombosis in a rabbit model of partial carotid artery occlusion without increasing bleeding time.3

    WARNING This product is not for human or veterinary use.

    References & Product Citations
    Product Description References

    1. Pakala, R., Liang, T.C., and Benedict, C.R. A peptide ligand of the human thrombin receptor antagonizes thrombin receptor activating peptide and α-thrombin-induced platelet aggregation. Fibrinolysis Proteol. 14(1), 15-21 (2000).

    2. Pakala, R., Liang, C.T., and Benedict, C.R. A peptide analogue of thrombin receptor-activating peptide inhibits thrombin and thrombin-receptor-activating peptide-induced vascular smooth muscle cell proliferation. J. Cardiovasc. Pharmacol. 37(5), 619-629 (2001).

    3. Pakala, R., Liang, C.T., and Benedict, C.R. Inhibition of arterial thrombosis by a peptide ligand of the thrombin receptor. Thromb. Res. 100(1), 89-96 (20000).