1. Signaling Pathways
  2. GPCR/G Protein
    Neuronal Signaling
  3. Opioid Receptor

Opioid Receptor

Opioid receptors are a group of G protein-coupled receptors with opioids as ligands. The endogenous opioids are dynorphins, enkephalins, endorphins, endomorphins and nociceptin. Opioid receptors are distributed widely in the brain, and are found in the spinal cord and digestive tract. Opioid receptors are molecules, or sites, within the body that are activated by opioid substances. Opioid receptors inhibit the transmission of impulse in excitatory pathways within the human body system. These pathways include the serotonin, catecholamine, and substance P pathways, which are all implicated in pain perception and feelings of well-being. Opioid receptors are further subclassified into mu, delta, and kappa receptors. All the classes, while exhibiting differing modes of action, share some basic similarities. They all are driven by the potassium pump mechanism, which is found on the plasma membrane of the majority of cells.

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-115500
    PL265
    Activator
    PL265 is an orally active dual enkephalinase inhibitor. PL265 is a prodrug of PL254, which can simultaneously and efficiently inhibit neutral endopeptidase (Neprilysin) and Aminopeptidase N. PL265 can effectively protect and significantly increase the local concentration of enkephalins (such as Met-Enkephalin and Leu-Enkephalin) released by cells at the pain or inflammation sites, thereby activating μ and δ opioid receptors to produce a potent analgesic effect. PL254 can also inhibit leukotriene A4 hydrolase (LTA4H), which may contribute to its additional anti-inflammatory effect by reducing the production of pro-inflammatory mediator leukotriene B4 (LTB4). PL265 can be used in non-addictive chronic pain research.
    PL265
  • HY-161812
    MOR agonist-4
    Agonist
    MOR agonist-4 (2d) is a G protein signaling-biased Kappa opioid receptor (KOR) agonist with an EC50 value of 11 nM. MOR agonist-4 contains an electron withdrawing CF3 group and a bias factor of 38 based on triazole. MOR agonist-4 is used in the research of pruritis and analgesia.
    MOR agonist-4
  • HY-175366
    DOR agonist 3
    Modulator
    DOR agonist 3 (Compound 10) is a δ-opioid receptor (DOR)-selective positive allosteric modulator. DOR agonist 3 enhances G protein signaling while reducing β-arrestin2 recruitment. DOR agonist 3 is promising for research of chronic pain and depression.
    DOR agonist 3
  • HY-120925
    TRV0109101
    Agonist
    TRV0109101 is a μ-opioid peptide receptor (MOPR) selective agonist (KD = 70 nM) with blood-brain barrier permeability. TRV0109101 selectively promotes G protein signaling pathway coupling while reducing the recruitment of β-arrestin. TRV0109101 inhibits opioid-induced mechanical hyperalgesia and induces antinociceptive tolerance. TRV0109101 is applicable for pain-related research.
    TRV0109101
  • HY-170973
    KOR agonist 4
    Agonist
    KOR agonist 4 (compound 39) is an agonist of Kappa Opioid Receptor. KOR agonist 4 is an activator of G-protein signaling. KOR agonist 4 binds with GTPγS with an EC50 of 14 nM and with an Emax of 83 %. KOR agonist 4 demonstrates moderate to high intrinsic clearance in human hepatocytes. KOR agonist 4 exhibits 60- and 810-fold selectivities versus the related mu (MOR) and delta (DOR) opioid receptors. KOR agonist 4 is potential for central nervous system (CNS) disorders research.
    KOR agonist 4
  • HY-120144
    SR-8993
    SR-8993 is a highly selective nociceptin receptor agonist that can penetrate the blood-brain barrier and has the activity of reducing alcohol intake and relieving withdrawal anxiety. SR-8993 has shown mild anxiolytic effects in animal models and can effectively reverse anxiety caused by acute alcohol withdrawal. SR-8993 further reduces restricted drinking, operant responses for alcohol, and increased drinking induced by long-term intermittent exposure to alcohol. SR-8993 also reduces stress- and cue-related alcohol-seeking relapse.
    SR-8993
  • HY-147560
    σ1 Receptor/μ Opioid receptor modulator 1
    Agonist
    σ1 Receptor/μ Opioid receptor modulator 1 (Compound 44) is a potent σ1 receptor antagonist and μ opioid receptor agonist with Kis of 1.86 nM and 2.1 nM, respectively.σ1 Receptor/μ Opioid receptor modulator 1 exhibits potent analgesic activity. σ1 Receptor/μ Opioid receptor modulator 1 can be used for the research of neuropathic pain.
    σ1 Receptor/μ Opioid receptor modulator 1
  • HY-105235A
    Enadoline hydrochloride
    Agonist
    Enadoline (CI-977) hydrochloride is a highly selective, brain-penetrating, and nonpeptide kappa-opioid receptor (KOR) agonist (Ki=1.25 nM). Antinociceptive effects.
    Enadoline hydrochloride
  • HY-76657AR
    Alvimopan dihydrate (Standard)
    Antagonist
    Alvimopan (dihydrate) (Standard) is the analytical standard of Alvimopan (dihydrate). This product is intended for research and analytical applications. Alvimopan dihydrate (ADL 8-2698 dihydrate) is a potent, selective, orally active and reversible μ-opioid receptor antagonist, with an IC50 of 1.7 nM. Alvimopan dihydrate has selectivity for μ-opioid receptor (Ki=0.47 nM) over κ- and δ-opioid receptors (Kis=100, 12 nM, respectively). Alvimopan dihydrate can be used for the research of postoperative ileus.
    Alvimopan dihydrate (Standard)
  • HY-P2199
    SNF 9007
    SNF 9007 is a cholecystokinin analog. SNF 9007 induces analgesia by acting on δ-1, δ-2, and μ opioid receptors in the mouse brain.
    SNF 9007
  • HY-P10395
    DP50
    Agonist
    DP50 is a bifunctional compound that contains an opioid receptor (MOP) agonist and a neuropeptide FF receptor (NPFFR) antagonist. DP50 can be used in analgesia-related research.
    DP50
  • HY-123389
    MR2034
    MR2034 ((R)-UM-1071) is a κ-opioid receptor agonist with activity that stimulates the hypothalamic-pituitary-adrenal axis. MR2034 has shown the potential to promote mood and inhibit addictive behaviors in animal models and can be used to study inhibitory approaches related to mood and addictive disorders. MR2034 is selective for κ-opioid receptors and can effectively modulate biological processes related to stress and mood.
    MR2034
  • HY-G0021S
    N-Desmethylclozapine-d8
    Agonist 98.73%
    N-Desmethylclozapine-d8 is the deuterium labeled N-Desmethylclozapine. N-Desmethylclozapine is a major active metabolite of the atypical antipsychotic agent Clozapine. N-Desmethylclozapine is a potent, allosteric and partial M1 receptors agonist (EC50=115 nM) and is able to potentiate hippocampal N-methyl-d-aspartate (NMDA) receptor currents through M1 receptor activation. N-Desmethylclozapine is also a δ-opioid agonist.
    N-Desmethylclozapine-d<sub>8</sub>
  • HY-P2052
    AWL 60
    Agonist
    AWL 60 is a compound with SP antagonist and weak opioid agonist properties, which can antagonize SP-agonists in vitro and attenuate the decrease in blood pressure caused by SP-agonists in vivo.
    AWL 60
  • HY-P1317
    Nociceptin (1-13), amide
    Agonist
    Nociceptin (1-13),amide is a potent ORL1 receptor (opioid receptor-like 1 receptor,OP4) agonist with a pEC50 of 7.9 for mouse vas deferens and a Ki of 0.75 nM for binding to rat forebrain membranes.
    Nociceptin (1-13), amide
  • HY-162771
    Mu opioid receptor agonist 1
    Agonist
    Mu opioid receptor agonist 1 (compound 12) is a Mu opioid receptor agonist. Mu opioid receptor agonist 1 can be used in nervous system related research.
    Mu opioid receptor agonist 1
  • HY-144609
    Mu opioid receptor antagonist 4
    Antagonist
    Mu opioid receptor antagonist 4 (compound 31) is a potent and selective μ opioid receptor (MOR) antagonist with a Ki of 0.38 nM and an EC50 of 1.07 nM. Mu opioid receptor antagonist 4 has remarkable CNS antagonism against morphine, and precipitated fewer withdrawal symptoms than Naloxone. Mu opioid receptor antagonist 4 Mu opioid receptor antagonist 4 can be used for researching opioid use disorders (OUD).
    Mu opioid receptor antagonist 4
  • HY-18618
    SB-612111
    Inhibitor
    SB-612111 is a novel and potent opiate receptor-like orphan receptor (ORL-1) antagonist with a high affinity for hORL-1 (Ki=0.33 nM). SB-612111 exhibits selectivity for μ-, κ- and δ-receptors with Ki values of 57.6 nM, 160.5 nM and 2109 nM, respecticely. SB-612111 effectively antagonizes the pronociceptive action of Nociceptin (HY-P0183) in an acute pain model.
    SB-612111
  • HY-162850
    DOR agonist 2
    Agonist
    DOR agonist 2 (Compound 3) is a Delta Opioid Receptor agonist. DOR agonist 2 can inhibit the expression of TNF-α, prevent NF-κB transport to the nucleus, and activate the G protein-mediated ERK1/2 pathway. DOR agonist 2 can be used in the study of neurodegenerative diseases.
    DOR agonist 2
  • HY-P10006
    Leumorphin, human
    Agonist
    Leumorphin, human is a potent kappa opioid receptor (κ opioid receptor) agonist. Leumorphin, human inhibits the contraction of the myenteric plexus-longitudinal muscle preparation of the guinea pig ileum.
    Leumorphin, human
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