1. Signaling Pathways
  2. GPCR/G Protein
  3. Oxytocin Receptor

Oxytocin Receptor

Oxytocin, a hormone involved in numerous physiologic processes, plays a central role in the mechanisms of parturition and lactation. It acts through its receptor, which is a transmembrane receptor belonging to the rhodopsin-type class I G-protein-coupled receptor (GPCR) superfamily, while Gq/phospholipase C (PLC)/inositol 1,4,5-triphosphate (InsP3) is the main pathway via which it exerts its action in the myometrium. The main signaling pathway is the Gq/LPC/Ins3 pathway, but the MAPK and the RhoA/Rho kinase pathways are also activated, contributing to increased prostaglandin production and direct contractile effect on myometrial cells. Various peptide and nonpeptide antagonists have been developed as potential tocolytic agents or research tools for the various Oxytocin functions. Many of these oxytocin receptor antagonists are used only as pharmacological tools, while others have tocolytic action.

Oxytocin Receptor Related Products (11):

Cat. No. Product Name Effect Purity
  • HY-17571A
    Oxytocin acetate Agonist 99.79%
    Oxytocin acetate (α-Hypophamine acetate) is a mammalian neurohypophysial hormone; its actions are mediated by specific, high-affinity oxytocin receptors; ligand of oxytocin receptor.
  • HY-15023
    Cligosiban Antagonist 99.85%
    Cligosiban (PF-3274167), a high oral bioavailability and good brain-penetrant non-peptide oxytocin receptor antagonist, shows a high-affinity (Ki=9.5 nM) and an excellent selectivity versus the vasopressin receptors with almost no affinity for the V1b and V1a subtypes. Cligosiban inhibits ejaculatory physiology in rodents.
  • HY-17572
    Atosiban Antagonist 99.09%
    Atosiban (RW22164; RWJ22164) is a nonapeptide competitive vasopressin/oxytocin receptor antagonist, and is a desamino-oxytocin analogue. Atosiban is the main tocolytic agent and has the potential for spontaneous preterm labor research.
  • HY-108677
    L-368,899 hydrochloride Antagonist 98.00%
    L-368,899 hydrochloride is a potent, selective, orally bioavailable, non-peptide oxytocin receptor antagonist, with IC50s of 8.9 nM and 26 nM for rat uterus and human uterus oxytocin receptor, respectively, used as a tocolytic agent.
  • HY-17573
    Carbetocin Agonist >98.0%
    Carbetocin (Lonactene; Duratocin) is an obstetric drug used to control postpartum hemorrhage and bleeding after giving birth; an agonist at peripheral oxytocin receptors.
  • HY-17572A
    Atosiban acetate Antagonist 99.92%
    Atosiban acetate (RW22164 acetate;RWJ22164 acetate) is a nonapeptide competitive vasopressin/oxytocin receptor antagonist, and is a desamino-oxytocin analogue. Atosiban is the main tocolytic agent and has the potential for spontaneous preterm labor research.
  • HY-14778
    Retosiban Antagonist
    Retosiban (GSK221149A) is a potent and selective oxytocin antagonist with a Ki of 0.65 nM.
  • HY-124733A
    LIT-001 Agonist 98.52%
    LIT-001 is the first nonpeptide oxytocin receptor (OT-R) agonist (EC50=55 nM; Ki=226 nM). LIT-001 improves social interaction in a mouse model of autism.
  • HY-17571
    Oxytocin Agonist 98.68%
    Oxytocin (α-Hypophamine) is a mammalian neurohypophysial hormone; its actions are mediated by specific, high-affinity oxytocin receptors; ligand of oxytocin receptor.
  • HY-15010
    L-371,257 Antagonist >99.0%
    L-371,257 is an orally bioavailable, non-blood-brain barrier penetrant, selective and competitive antagonist of oxytocin receptor (pA2=8.4) with high affinity at both the oxytocin receptor (Ki=19 nM) and vasopressin V1a receptor (Ki=3.7 nM).
  • HY-103651
    OT antagonist 1 demethyl derivative Antagonist
    OT antagonist 1 demethyl derivative is the demethyl derivative of OT antagonist 1. OT antagonist 1 (Compound 4) is a potent, selective Oxytocin antagonist with a Ki of 50 nM.
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