Description: Peptide to [Tyr69, Ala71, 72, Lys74]-C3a (69-77) Form: Lyophilized powder Molecular Formula : C45H77N13O11Molecular Weight : 976.2Purity : > 95%Chemical Structure : Tyr-Ala-Ala-Ala-Leu-Lys-Leu-Ala-ArgApplication : The peptide YAAALKLAR, which has been modeled after the C-terminus of the anaphylatoxin C3a, constitutes a potent inhibitor of C3a activity. The Lys74 residue contributes to the separation between deactivation and activation of the C3a receptor.Storage/Stability : Shipped at 4°C. Store at -20°C for one year.