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-145404
    Mitragynine pseudoindoxyl
    Agonist
    Mitragynine pseudoindoxyl is a potent MOR agonist. Mitragynine pseudoindoxyl displays reduced hyperlocomotion, inhibition of GI transit and reinforcing properties.
    Mitragynine pseudoindoxyl
  • 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-P4531
    H-Ser-Tyr-OH
    Activator
    H-Ser-Tyr-OH is a dipeptide consisting of glutamic acid, glycine and histidine. H-Ser-Tyr-OH can form a copper(II) complex with copper ions to form a strong free radical scavenging activity. H-Ser-Tyr-OH also increases the intracellular uptake of the delta opioid receptor ligand deltorphin.
    H-Ser-Tyr-OH
  • 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
  • HY-P1863
    α-Neoendorphin (1-8)
    α-Neoendorphin (1-8) is a 8-amino acid peptide derived from the N-terminal of α-Neoendorphin. α-Neoendorphin is an endogenous opioid peptide.
    α-Neoendorphin (1-8)
  • HY-P1338
    PL-017
    Agonist
    PL-017 is a potent and selective μ opioid receptor agonist with an IC50 of 5.5 nM for 125I-FK 33,824 binding to μ site. PL-017 produces long-lasting, reversible analgesia in rats.
    PL-017
  • HY-P4107
    Bilaid C
    Agonist
    Bilaid C, a tetrapeptide, can be isolated from the Australian estuarine isolate of Penicillium sp. MST-MF667. Bilaid C is also a potent and selective μ-Opioid Receptor (MOPr) agonist (Ki=210 nM, hMOPr).
    Bilaid C
  • HY-P3629
    Dynorphin B 29 (pig)
    Dynorphin B 29 (Leumorphin) (pig) is a petide. Dynorphin B 29 (pig) can interact with multiple receptors in the brain, as well as in isolated tissue systems. Dynorphin B 29 (pig) can be used for the research of immunoreaction.
    Dynorphin B 29 (pig)
  • HY-P0244A
    Dermorphin TFA
    Agonist
    Dermorphin TFA is a natural heptapeptide μ-opioid receptor (MOR) agonist found in amphibian skin. Inhibition of neuropathic pain.
    Dermorphin TFA
  • HY-W325509
    AH 8532
    AH 8532, an opioid, possesses anti-nociceptive effect and inhibits writhing induced by phenylquinone, with a ED50 of 16 mg/kg in mice orally.
    AH 8532
  • HY-P3870
    DALDA
    Agonist
    DALDA is a potent and highly selective μ-opioid receptor agonist with a Ki of 1.69 nM. DALDA shows antinociceptive and respiratory effects.
    DALDA
  • HY-142919
    μ opioid receptor agonist 2
    Agonist
    μ opioid receptor agonist 2 (Compound H-3)is an optically pure oxaspiro ring substituted pyrrolopyrazole derivative, acts as a MOR receptor agonist and can be used for the research of pain and pain related diseases.
    μ opioid receptor agonist 2
  • HY-129661
    AH 7959
    AH 7959 is an orally active N-substituted cyclohexyl methyl benzamide compound that has analgesic effects, the oral and subcutaneous ED50 of AH 7959 in mice is greater than 100 mg/kg.
    AH 7959
  • HY-P1300A
    [(pF)Phe4]Nociceptin(1-13)NH2 TFA
    Agonist
    [(pF)Phe4]Nociceptin(1-13)NH2 TFA is a highly potent and selective NOP receptor (OP4) agonist, with a pKi of 10.68 and a pEC50 of 9.31. [(pF)Phe4]Nociceptin(1-13)NH2 TFA displays high selectivity over δ, κ, and μ opioid receptors (>3000 fold).
    [(pF)Phe4]Nociceptin(1-13)NH2 TFA
  • HY-162552
    KOR/DOR agonist 1
    Agonist
    KOR/DOR agonist 2 is a KOR and DOR opioid receptors agonist with Ki values of 0.14 nM, and 0.93 nM, respectively. KOR/DOR agonist 2 shows significant antinociceptive effects. KOR/DOR agonist 2 penetrates the blood-brain barrier.
    KOR/DOR agonist 1
  • HY-P10177
    Acetalin-3
    Antagonist
    Acetalin-3 (Ac-RFMWMT-NH2), a hexapeptide, is a μ opioid receptor antagonist with high affinity for μ and κ3 opioid receptor, weak affinity for κ1 receptors and no affinity for κ2 receptors.
    Acetalin-3
  • HY-N0923R
    Corydaline (Standard)
    Agonist
    Corydaline (Standard) is the analytical standard of Corydaline. This product is intended for research and analytical applications. Corydaline ((+)-Corydaline), an isoquinoline alkaloid isolated from Corydalis yanhusuo, is an AChE inhibitor with an IC50 of 226 μM. Corydaline is a μ-opioid receptor (Ki of 1.23 μM) agonist and inhibits enterovirus 71 (EV71) replication (IC50 of 25.23 μM). Corydaline has anti-angiogenic, anti-allergic and gastric-emptying and antinociceptive activities.
    Corydaline (Standard)
  • HY-P5892
    β-Endorphin (1-27) (human)
    Antagonist
    β-Endorphin (1-27) (human) is an opioid antagonist that binds μ-, δ-, and κ-opioid receptors with Kis of 5.31, 6.17, and 39.82 nM, respectively. β-Endorphin (1-27) (human) inhibits β-Endorphin (HY-P1502)-induced and etorphine-induced analgesia.
    β-Endorphin (1-27) (human)
Cat. No. Product Name / Synonyms Application Reactivity

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