1. Signaling Pathways
  2. GPCR/G Protein
    Neuronal Signaling
  3. GPR55

GPR55

G protein-coupled receptor 55

GPR55 (G protein-coupled receptor 55) is a G protein-coupled receptor that in humans is encoded by the GPR55 gene. GPR55, along with GPR119 and GPR18, have been implicated as novel cannabinoid receptors. GPR55 is activated by the plant cannabinoids 9-THC and cannabidiol, and the endocannabinoids anandamide, 2-AG, noladin ether in the low nanomolar range. Recent research suggests that lysophosphatidylinositol and its 2-arachidonoyl derivative may be the endogenous ligands for GPR55, and the receptor appears likely to be a possible target for treatment of inflammation and pain as with the other cannabinoid receptors. The physiological role of GPR55 is unclear. GPR55 has been proposed as a new potential drug target for the treatment of diabetes, Parkinson’s disease, neuropathic pain, and cancer.

GPR55 Related Products (20):

Cat. No. Product Name Effect Purity Chemical Structure
  • HY-10863
    Anandamide
    Activator ≥99.0%
    Anandamide is an endocannabinoid. Anandamide modulates both neuronal and immune functions through two protein-coupled cannabinoid receptors (CB1 and CB2). Anandamide can activate numerous other receptors like PPARS, TRPV1, and GPR18/GPR55. Anandamide also has potential anti-fungal and anti-inflammatory activities. Anandamide can be used for the research of Alzheimer’s disease (AD) and ulcerative colitis.
    Anandamide
  • HY-16697
    CID 16020046
    Antagonist 99.87%
    CID 16020046 is a potent and selective GPR55 antagonist and inhibits GPR55 constitutive activity with an IC50 of 0.15 μM. CID 16020046 inhibits GPR55-mediated Ca2+ signaling and GPR55-mediated ERK1/2 phosphorylation. CID 16020046 reduces wound healing in endothelial cells and is involved in the regulation of platelet function.
    CID 16020046
  • HY-107541
    O-1602
    Agonist 99.79%
    O-1602 is an agonist of GPR55 (G protein-coupled receptor 55). O-1602 reduces the number and activation of hippocampal microglia induced by METH (methamphetamine). O-1602 decreases the expression levels of NLRP3 inflammasome proteins, including NLRP3, ASC and Caspase-1.
    O-1602
  • HY-110125
    ML-193
    Antagonist 99.82%
    ML-193 (CID 1261822) is a potent and selective antagonist of GPR55, with an IC50 of 221 nM. ML-193 shows more than 27-fold selectivity for GPR55 over GPR35, CB1 and CB2. ML-193 can improve the motor and the sensorimotor deficits of Parkinson’s disease (PD) rats.
    ML-193
  • HY-116461
    ML-184
    Agonist 99.53%
    ML-184 (CID2440433) is a selective GPR55 agonist with an EC50 of 250 nM and exhibits >100-fold selectivity for GPR55 over GPR35, CB1 and CB2. ML-184 induces phosphorylation of ERK1/2 and translocation of PKCβII to the plasma membrane by activating GPR55. ML-184(CID2440433) increases proliferation of neural stem cells and promotes neuronal differentiation in vitro.
    ML-184
  • HY-10863S
    Anandamide-d8
    Activator
    Anandamide-d8 is a deuterated labeled Anandamide. Anandamide is an endocannabinoid. Anandamide modulates both neuronal and immune functions through two protein-coupled cannabinoid receptors (CB1 and CB2). Anandamide can activate numerous other receptors like PPARS, TRPV1, and GPR18/GPR55. Anandamide also has potential anti-fungal and anti-inflammatory activities. Anandamide can be used for the research of Alzheimer’s disease (AD) and ulcerative colitis.
    Anandamide-d<sub>8</sub>
  • HY-10863S1
    Anandamide-d11
    Anandamide-d11 is deuterium labeled Anandamide. Anandamide is an immune modulator in the central nervous system acts via not only cannabinoid receptors (CB1 and CB2) but also other targets (e.g., GPR18/GPR55)[1][2].
    Anandamide-d<sub>11</sub>
  • HY-116637
    Tetrahydromagnolol
    Antagonist 99.79%
    Tetrahydromagnolol (Magnolignan), a main metabolite of Magnolol, is a potent and selective cannabinoid CB2 receptor agonist with an EC50 of 170 nM and a Ki of 416 nM. Tetrahydromagnolol possesses 20-fold more selective for CB2 receptor than CB1 receptor. Tetrahydromagnolol is also a weak GPR55 receptor antagonist.
    Tetrahydromagnolol
  • HY-122246
    ML192
    Antagonist
    ML192 is a selective ligand antagonist of GPR55. ML192 inhibits the β-arrestin trafficking, ERK1/2 phosphorylation and PKCβII translocation.
    ML192
  • HY-111083
    ML191
    Antagonist 99.65%
    ML-191 is an antagonist of GPR55. It inhibits GPR55 signaling induced by lysophosphatidylinositol (EC50=1.076 µM in U2OS cells overexpressing GPR55). ML-191 inhibits LPI-induced phosphorylation of ERK1/2 (IC50=328 nM) and receptor-dependent translocation of PKCβII when used at a concentration of 30 µM.
    ML191
  • HY-W020035
    L-α-lysophosphatidylinositol (Soy) (sodium)
    ≥99.0%
    L-α-lysophosphatidylinositol Soy sodium is an endogenous ligand of GPR55. L-α-lysophosphatidylinositol Soy sodium is an endogenous lysophospholipid and endocannabinoid neurotransmitter that belongs to the class of lysophospholipids.
    L-α-lysophosphatidylinositol (Soy) (sodium)
  • HY-156157
    GPR55 agonist 4
    Agonist 98.36%
    GPR55 agonist 4 (Compound 28) is a GPR55 agonist (EC50: 131 nM, and 1.41 nM for hGPR55 and rGPR55). GPR55 agonist 4 induces β-arrestin recruitment to human GPR55.
    GPR55 agonist 4
  • HY-103336
    Tocrifluor 1117
    Agonist
    Tocrifluor 1117 (T1117), a fluorescent form of the cannabinoid CB1 receptor antagonist AM251 (HY-15443), is a selective fluorescent GPR55 ligand. Tocrifluor 1117 is a potent tool for identifying the cellular location of cannabinoid receptors (including GPR55 in living tissues) (Ex/Em=543/590 nm).
    Tocrifluor 1117
  • HY-125111
    PSB-SB-487
    Antagonist 99.36%
    PSB-SB-487 is a potent GPR55 antagonist and CB2 agonist with an IC50 value of 0.113 µM for GPR55, and a Ki value of 0.292 µM for human CB2. PSB-SB-487 can be used for researching diabetes, Parkinson’s disease, neuropathic pain, and cancer.
    PSB-SB-487
  • HY-123239
    KLS-13019
    Antagonist
    KLS-13019 is an orally active GPR55 receptor antagonist and a structural analogue of cannabidiol (CBD). It can prevent and reverse chemotherapy-induced peripheral neuropathy (CIPN) in a dose-dependent manner in rats.
    KLS-13019
  • HY-156107
    GPR55 agonist 3
    Agonist 99.17%
    GPR55 agonist 3 (Compound 26) is a GPR55 agonist (EC50: 0.239 nM, and 1.76 nM for hGPR55 and rGPR55). GPR55 agonist 3 induces β-arrestin recruitment to human GPR55 (EC50: 6.2 nM).
    GPR55 agonist 3
  • HY-114954
    CID1792197
    Agonist
    CID1792197 is a GPR55 agonist with an EC50 value of 0.11 μM.
    CID1792197
  • HY-111162
    GSK494581A
    GSK494581A is a specific ligand for human GPR55 (pEC50 of 6.8) and also acts as an inhibitor of glycine transporter subtype 1 (GlyT1). GSK494581A may regulate pain signaling, bone morphogenesis, and vascular endothelial cell formation by binding to GPR55.
    GSK494581A
  • HY-107541R
    O-1602 (Standard)
    Agonist
    O-1602 (Standard) is the analytical standard of O-1602. This product is intended for research and analytical applications. O-1602 is an agonist of GPR55 (G protein-coupled receptor 55). O-1602 reduces the number and activation of hippocampal microglia induced by METH (methamphetamine). O-1602 decreases the expression levels of NLRP3 inflammasome proteins, including NLRP3, ASC and Caspase-1.
    O-1602 (Standard)
  • HY-123302
    CID1172084
    Agonist
    CID1172084 (compound 3) is a selective GPR55 agonist (EC50=0.16 μM). CID1172084 is more than 100-fold selective for GPR55 over GPR35, CB1, and CB2. CID1172084 can be used to further explore the biological functions and signaling pathways of the GPR55 receptor.
    CID1172084