Formulation: A lyophilized powder
Formal Name: L-α-aspartyl-L-methionyl-L-histidyl-L-α-aspartyl-L-phenylalanyl-L-phenylalanyl-L-valylglycyl-L-leucyl-L-methioninamide, 2,2,2-trifluoroacetate
Purity: ≥95%
Formula Markup: C55H79N13O14S2 • XCF3COOH
Formula Weight: 1210,4
Shelf life (days): 1460
Notes: Neurokinin B is a tachykinin peptide agonist of the neurokinin-3 receptor (NK3; Ki = 0.8 nM).{41381,28052} In vitro, neurokinin B dose-dependently induces calcium mobilization in HEK293 cells expressing NK3 (EC50 = 0.5 nM), an effect inhibited by NK3 antagonists. Neurokinin B potentiates electrically-induced contractions in rat vas deferens and increases vasodilation in rat hind paw in a dose-dependent manner.{41381} In juvenile male rhesus monkeys, neurokinin B (100 µg, i.v.) stimulates luteinizing hormone (LH) release and acts within the hypothalamus, suggesting a role in initiating puberty.{37409}