2. Signaling Pathways
  3. Neuronal Signaling
  4. Sigma Receptor

Sigma Receptor

Sigma Receptor

Related Products

PDF 0.68 MB

Sigma receptors (subtypes sigma-1 and sigma-2) are a unique class of binding sites expressed throughout the mammalian body. The endogenous ligand for these sites has not been identified, but steroid hormones (particularly progesterone), sphingolipid-derived amines and N,N-dimethyltryptamine can bind with fairly high affinity.

The sigma-1 receptor (σ1R) is an endoplasmic reticulum (ER)-resident chaperone protein that acts like an inter-organelle signaling modulator. It participates in many biological processes including nociception, cancer, stroke, memory, drug addiction, cardiac activity, and Alzheimer’s disease. The sigma-2 (σ2R) receptor is overexpressed in various human tumors. It has been validated as a biomarker for proliferating tumors.

Sigma Receptor Isoform Specific Products:

Sigma Receptor Isoform Comparison
Cat. No. Product Name Effect Purity Chemical Structure
  • HY-153091
    BMY 14802
    		Antagonist 98.96%
    BMY 14802 is a sigma-1 receptor (σ1R) antagonist, as well as an agonist at serotonin (5-HT) 1A and adrenergic alpha-1 receptors. BMY 14802 inhibits abnormal involuntary movement (AIM) in rat Parkinson's disease (PD) model, with down-regulating the expression of AIM.
    BMY 14802
  • HY-116594
    OPC-14523 free base
    		Agonist
    OPC-14523 free base is an orally active sigma and 5-HT1A receptor agonist, with high affinity for sigma receptors (σ1/2 IC50=47/56 nM), the 5-HT1A receptor (IC50=2.3 nM), and the 5-HT transporter (IC50=80 nM). OPC-14523 free base shows antidepressant-like activity.
    OPC-14523 free base
  • HY-134189A
    EST73502 monohydrochloride
    		Antagonist 99.58%
    EST73502 monohydrochloride is a selective, orally active and blood-brain barrier (BBB) penetrant dual μ-opioid receptor (MOR) agonist and σ1 receptor (σ1R) antagonist, with Kis of 64 nM and 118 nM for MOR and σ1R, respectively. EST73502 monohydrochloride has antinociceptive activity.
    EST73502 monohydrochloride
  • HY-135608
    BD-1008
    		Antagonist 98.41%
    BD-1008 is a nonselective σ receptor antagonist with Kis against σ1 receptor and σ2 receptor of 2 nM and 8 nM. The BD-1008 has an extremely low affinity for the D2 receptor (Ki = 1112 nM) and dopamine transporter (DAT) (Ki > 10,000 nM). BD-1008 significantly antagonizes dopamine release in the shell region of the nucleus accumbens via the σ₂ receptor. BD-1008 blocks the self-administration behavior of σ agonists.BD-1008 can be used for the study of addiction therapy that target the σ receptor.
    BD-1008
  • HY-101626
    Sigma-LIGAND-1
    		99.67%
    Sigma-LIGAND-1 is a selective sigma receptor ligand with an IC50s of 16 nM, 19 nM at the DTG site and the PPP site, respectively. Sigma-LIGAND-1 has a Ki of 4000 nM at the dopamine D2 receptor.
    Sigma-LIGAND-1
  • HY-149804
    S1R agonist 2
    		Agonist ≥98.0%
    S1R agonist 2 (Compound 8b) is a selective S1R agonist with Kis of 1.1 nM and 88 nM for S1R and S2R, respectively. S1R agonist 2 exhibits neuroprotection against ROS and NMDA-induced neurotoxicity.
    S1R agonist 2
  • HY-14895
    Fabomotizole
    		Inhibitor 99.96%
    Fabomotizole (CM346) is an insecticide with anxiolytic, antianxiety, and neuroprotective activities and a substrate of p-glycoprotein. Fabomotizole inhibits the ST-segment depression induced by isoproterenol in a rat model of acute subendocardial ischemia. Fabomotizole also inhibits Giardia lamblia and has the potential to inhibit giardiasis. Fabomotizole also targets Sigma1R, NRH:quinone reductase 2 (NQO2), and MAO-A to exert anxiolytic effects.
    Fabomotizole
  • HY-13751A
    SR-31747 free base
    SR-31747 free base is a sigma ligand with immunosuppressive and anti-inflammatory properties. SR-31747 blocks cell proliferation by inhibiting sterol isomerase.
    SR-31747 free base
  • HY-13575A
    Blonanserin dihydrochloride
    		Antagonist
    Blonanserin dihydrochloride is a potent and orally active 5-HT2A and dopamine D2 receptor antagonist, with Ki values of 0.812 and 0.142 nM, respectively. Blonanserin dihydrochloride is usually acts as an atypical antipsychotic agent, and can be used for the research of extrapyramidal symptoms, excessive sedation, or hypotension.
    Blonanserin dihydrochloride
  • HY-116586
    AF710B
    		Agonist
    AF710B is a highly potent and selective allosteric M1 muscarinic and σ1 receptor agonist. AF710B can be used for the research of Alzheimer’s disease.
    AF710B
  • HY-100966S
    BD-1008-d5 dihydrobromide
    		Antagonist
    BD-1008-d5 dihydrobromide is the deuterium labeled BD-1008 dihydrobromide (HY-100966). BD-1008 dihydrobromide is a nonselective σ receptor antagonist with Kis against σ1 receptor and σ2 receptor of 2 nM and 8 nM. The BD-1008 dihydrobromide has an extremely low affinity for the D2 receptor (Ki = 1112 nM) and dopamine transporter (DAT) (Ki > 10,000 nM). BD-1008 dihydrobromide significantly antagonizes dopamine release in the shell region of the nucleus accumbens via the σ₂ receptor. BD-1008 dihydrobromide blocks the self-administration behavior of σ agonists.BD-1008 dihydrobromide can be used for the study of addiction therapy that target the σ receptor.
    BD-1008-d<sub>5</sub> dihydrobromide
  • HY-123408
    Umespirone
    Umespirone (KC 9172) is a potential antipsychotic/antianxiety agent.
    Umespirone
  • HY-14221B
    Siramesine fumarate
    		Agonist
    Siramesine (Lu 28-179) fumarate is a potent sigma-2 receptor agonist. Siramesine fumarate has a subnanomolar affinity for sigma-2 receptors (IC50=0.12?nM) and exhibits a 140-fold selectivity for sigma-2 receptors over sigma-1 receptors (IC50=17?nM). Siramesine fumarate triggers cell death through destabilisation of mitochondria, but not lysosomes. Anti-cancer activity.
    Siramesine fumarate
  • HY-163075
    SYB4
    SYB4 (compound 5) is a PET tracer which suitable for imaging the Sigma-2 Receptor in the brain of nonhuman primates.
    SYB4
  • HY-158197
    RC-106
    		Inhibitor
    RC-106 is a proteasome inhibitor (IC50: 35 μM) and Sigma receptor modulator with anticancer activity. RC-106 has antiproliferative activity against cancer cells including glioblastoma (GB) and multiple myeloma (MM).
    RC-106
  • HY-149855
    AB10
    		Antagonist
    AB10 is a selective S1R antagonist. AB10 with Ki of 10, 165 nM for S1R and S2R, respectively. AB10 reverses the effect of Capsaicin (HY-10448) caused pain in model.
    AB10
  • HY-159997
    AD353
    AD353 is a selective sigma-1 receptor ligand with antiallodynic activity. AD353 exhibits high potency both in a model of Capsaicin (HY-10448)-induced allodynia and in PGE2-induced mechanical hyperalgesia. AD353 exhibits a favorable pharmacokinetic profile.
    AD353
  • HY-155616
    KSK94
    		Antagonist
    KSK94 is a high-affinity histamine H3 receptor antagonist, with Kis of 7.9, 2958, 75.2 nM for H3 receptor, sigma-1, sigma-2 receptor respectively. KSK94 can be used for research of nociceptive and neuropathic pain.
    KSK94
  • HY-147560
    σ1 Receptor/μ Opioid receptor modulator 1
    		Antagonist
    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-RS12910
    Sigmar1 Rat Pre-designed siRNA Set A
    		Inhibitor

    Sigmar1 Rat Pre-designed siRNA Set A contains three designed siRNAs for Sigmar1 gene (Rat), as well as a negative control, a positive control, and a FAM-labeled negative control.
    Sigmar1 Rat Pre-designed siRNA Set A
Sigma Receptor Isoform Comparison

Your Search Returned No Results.

Sorry. There is currently no product that acts on isoform together.

Please try each isoform separately.