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

Oxytocin Receptor

OXTR

Oxytocin Receptor

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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.

Cat. No. Product Name Effect Purity Chemical Structure
  • 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.
    OT antagonist 1 demethyl derivative
  • HY-P2168
    Demoxytocin
    Demoxytocin, a heterodetic cyclic peptide, is an analog of oxytocin. Demoxytocin affects the permeability of the cell membrane, increasing the content of calcium ions in smooth muscle cells, increasing its contraction. Demoxytocin also stimulates the contraction of smooth muscles of the uterus. Demoxytocin has the function of oxytocin. Demoxytocin can be used to research stimulation of labor in cases of premature rupture.
    Demoxytocin
  • HY-P10325
    Kalata B7
    		Agonist
    Kalata B7 is a cyclotide that can be isolated from Oldenlandia affinis DC (Rubiaceae) and possesses membrane-permeating capabilities. Kalata B7 is also a partial agonist of oxytocin and vasopressin V1a receptors.
    Kalata B7
  • HY-P4397
    (d(CH2)51,Tyr(Me)2,Thr4,Orn8,des-Gly-NH29)-Vasotocin
    (d(CH2)51,Tyr(Me)2,Thr4,Orn8,des-Gly-NH29)-Vasotocin, an oxytocin receptor antagonist, abolishes oxytocin-enhanced inhibitory postsynaptic currents in CA1 pyramidal neurons.
    (d(CH2)51,Tyr(Me)2,Thr4,Orn8,des-Gly-NH29)-Vasotocin
  • HY-17572R
    Atosiban (Standard)
    		Antagonist
    Atosiban (Standard) is the analytical standard of Atosiban. This product is intended for research and analytical applications. 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 (Standard)
  • HY-129333
    L-364918
    		Antagonist
    L-364918 is a potent and selective oxytocin and arginine vasopressin antagonist with Ki values of 30, 1300, 2400 nM for OT, AVP-V1, AVP-V2, respectively. L-364918 has the potential for the research of preterm labor and disturbances in water balance.
    L-364918
  • HY-17573R
    Carbetocin (Standard)
    		Agonist
    Carbetocin (Standard) is the analytical standard of Carbetocin. This product is intended for research and analytical applications. 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 (Standard)
  • HY-17571AR
    Oxytocin acetate (Standard)
    		Agonist
    Oxytocin (acetate) (Standard) is the analytical standard of Oxytocin (acetate). This product is intended for research and analytical applications. 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 (Standard)
  • HY-120585
    L-365209
    		Antagonist
    L-365209 is a oxytocin antagonist and can be isolated from Streptomyces .
    L-365209
  • HY-17572AR
    Atosiban (acetate) (Standard)
    		Antagonist
    Atosiban (acetate) (Standard) is the analytical standard of Atosiban (acetate). This product is intended for research and analytical applications. 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) (Standard)
  • HY-W587861
    5β-Dihydroprogesterone
    		Antagonist
    5β-Dihydroprogesterone (5βDHP) is the metabolite of Progesterone (HY-N0437). 5β-Dihydroprogesterone binds to oxytocin receptor, reduces the Oxytocin (HY-17571)-induced calcium signal transduction, thereby exhibiting the tocolytic activity.
    5β-Dihydroprogesterone
Cat. No. Product Name / Synonyms Application Reactivity