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

Oxytocin Receptor

OXTR

The oxytocin receptor belongs to the G-protein-coupled seven-transmembrane receptor superfamily. Its main physiological role is regulating the contraction of uterine smooth muscle at parturition and the ejection of milk from the lactating breast. The oxytocin receptors are activated in response to binding oxytocin and a similar nonapeptide, vasopressin. Oxytocin receptor triggers Gi or Gq protein-mediated signaling cascades leading to the regulation of a variety of neuroendocrine and cognitive functions.

Oxytocin is a nonapeptide of the neurohypophyseal protein family that binds specifically to the oxytocin receptor to produce a multitude of central and peripheral physiological responses. In vivo, oxytocin acts as a paracrine and/or autocrine mediator of multiple biological effects. These effects are exerted primarily through interactions with G-protein-coupled oxytocin/vasopressin receptors, which, via Gq and Gi, stimulate phospholipase C-mediated hydrolysis of phosphoinositides.

Oxytocin Receptor Related Products (43):

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-17571A
    Oxytocin acetate
    Agonist 99.44%
    Oxytocin (α-Hypophamine) acetate is a pleiotropic, hypothalamic peptide known for facilitating parturition, lactation, and prosocial behaviors. Oxytocin acetate can function as a stress-coping molecule with anti-inflammatory, antioxidant, and protective effects especially in the face of adversity or trauma.
    Oxytocin acetate
  • HY-17572A
    Atosiban acetate
    Antagonist 99.88%
    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.
    Atosiban acetate
  • HY-108677
    L-368,899 hydrochloride
    Antagonist 98.78%
    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. L-368,899 hydrochloride used as a tocolytic agent.
    L-368,899 hydrochloride
  • HY-124733A
    LIT-001
    Agonist 98.14%
    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.
    LIT-001
  • HY-17573
    Carbetocin
    Agonist 99.97%
    Carbetocin, an oxytocin (OT) analogue, is an oxytocin receptor agonist with a Ki of 7.1 nM. Carbetocin has high affinity to chimeric N-terminus (E1) of the oxytocin receptor (Ki=1.17 μM). Carbetocin has the potential for postpartum hemorrhage research. Carbetocin can crosse the blood-brain barrier and produces antidepressant-like activity via activation of oxytocin receptors in the CNS.
    Carbetocin
  • HY-17571
    Oxytocin
    Agonist 99.79%
    Oxytocin (α-Hypophamine; Oxytocic hormone) is a pleiotropic, hypothalamic peptide known for facilitating parturition, lactation, and prosocial behaviors. Oxytocin can function as a stress-coping molecule with anti-inflammatory, antioxidant, and protective effects especially in the face of adversity or trauma.
    Oxytocin
  • HY-P5213
    Vasopressin Dimer (parallel) (TFA)
    Activator
    Vasopressin Dimer (parallel) TFA is a parallel dimer of Vasopressin (HY-B1811). Vasopressin Dimer (parallel) TFA can activate four G protein-coupled receptors, V1aR, V1bR, V2R, and OTR.
    Vasopressin Dimer (parallel) (TFA)
  • HY-153964A
    PF-06478939 TFA
    Agonist
    PF-06478939 TFA is a non-brain-penetrating peptide that is an agonist at oxytocin (OT) receptor and vasopressin receptor with EC50 values of 0.01 nM and 0.078 nM, respectively.
    PF-06478939 TFA
  • HY-15010
    L-371,257
    Antagonist 99.90%
    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).
    L-371,257
  • HY-P3467
    (Thr4,Gly7)-Oxytocin
    Agonist 99.90%
    (Thr4,Gly7)-Oxytocin, an Oxytocin analogue, is a specific OT receptor agonist. (Thr4,Gly7)-Oxytocin also excites subicular neurons via activation of TRPV1 channels, and depression of K+ channels. .
    (Thr4,Gly7)-Oxytocin
  • HY-14778
    Retosiban
    Antagonist 98.97%
    Retosiban (GSK221149A) is a potent and selective oxytocin antagonist with a Ki of 0.65 nM.
    Retosiban
  • HY-17573A
    Carbetocin acetate
    Agonist 99.86%
    Carbetocin acetate, an oxytocin (OT) analogue, is an oxytocin receptor agonist with a Ki of 7.1 nM. Carbetocin acetate has high affinity to chimeric N-terminus (E1) of the oxytocin receptor (Ki=1.17 μM). Carbetocin acetate has the potential for postpartum hemorrhage research. Carbetocin acetate can crosse the blood-brain barrier and produces antidepressant-like activity via activation of oxytocin receptors in the CNS.
    Carbetocin acetate
  • HY-17572
    Atosiban
    Antagonist 99.55%
    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.
    Atosiban
  • HY-P3217
    [Asp5]-Oxytocin
    Agonist 99.19%
    [Asp5]-Oxytocin is the first 5-position neurohypophyseal hormone analogue possessing significant biological activity. [Asp5]-Oxytocin causes uterine contractions in vitro, enhanced by Mg2+. [Asp5]-Oxytocin has the ability of rat uteroconstrictor, avian vasodilator, and rat antidiuretic.
    [Asp5]-Oxytocin
  • HY-15015A
    OT-R antagonist 2
    Antagonist 99.86%
    OT-R antagonist 2 is a nonpeptide low molecular weight OT-R antagonist.
    OT-R antagonist 2
  • HY-128351
    SHR1653
    Antagonist 99.69%
    SHR1653 is a highly potent, selective and brain penetrated oxytocin receptor (OTR) antagonist, with an IC50 of 15 nM for hOTR.
    SHR1653
  • HY-15023
    Cligosiban
    Antagonist 99.89%
    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.
    Cligosiban
  • HY-P3217A
    [Asp5]-Oxytocin acetate
    Agonist 99.13%
    [Asp5]-Oxytocin acetate is the first 5-position neurohypophyseal hormone analogue possessing significant biological activity. [Asp5]-Oxytocin acetate causes uterine contractions in vitro, enhanced by Mg2+. [Asp5]-Oxytocin acetate has the ability of rat uteroconstrictor, avian vasodilator, and rat antidiuretic.
    [Asp5]-Oxytocin acetate
  • HY-15015
    OT-R antagonist 1
    Antagonist 98.37%
    OT-R antagonist 1 is a new potent and selective nonpeptide low molecular weight OT-R antagonist.
    OT-R antagonist 1
  • HY-108678
    TC OT 39
    Agonist
    TC OT 39 is a synthetic oxytocin analog, as well as a selective agonist of oxytocin receptor (OXTR, EC50=180 nM). TC OT 39 is also an Avprla vasopressin receptor antagonist with an Ki value of 330 nM. TC OT 39 exhibits sedative effects in mouse models.
    TC OT 39