G Protein Coupled Receptors (GPCRs) perceive many extracellular signals and transduce them to heterotrimeric G proteins, which further transduce these signals intracellular to appropriate downstream effectors and thereby play an important role in various signaling pathways. G proteins are specialized proteins with the ability to bind the nucleotides guanosine triphosphate (GTP) and guanosine diphosphate (GDP). In unstimulated cells, the state of G alpha is defined by its interaction with GDP, G beta-gamma, and a GPCR. Upon receptor stimulation by a ligand, G alpha dissociates from the receptor and G beta-gamma, and GTP is exchanged for the bound GDP, which leads to G alpha activation. G alpha then goes on to activate other molecules in the cell. These effects include activating the MAPK and PI3K pathways, as well as inhibition of the Na+/H+ exchanger in the plasma membrane, and the lowering of intracellular Ca2+ levels.

Most human GPCRs can be grouped into five main families named; Glutamate, Rhodopsin, Adhesion, Frizzled/Taste2, and Secretin, forming the GRAFS classification system.

A series of studies showed that aberrant GPCR Signaling including those for GPCR-PCa, PSGR2, CaSR, GPR30, and GPR39 are associated with tumorigenesis or metastasis, thus interfering with these receptors and their downstream targets might provide an opportunity for the development of new strategies for cancer diagnosis, prevention and treatment. At present, modulators of GPCRs form a key area for the pharmaceutical industry, representing approximately 27% of all FDA-approved drugs.

References:
[1] Moreira IS. Biochim Biophys Acta. 2014 Jan;1840(1):16-33.
[2] Tuteja N. Plant Signal Behav. 2009 Oct;4(10):942-7.
[3] Williams C, et al. Methods Mol Biol. 2009;552:39-50.
[4] Schiöth HB, et al. Gen Comp Endocrinol. 2005 May 15;142(1-2):94-101.
[5] Wu J, et al. Cancer Genomics Proteomics. 2012 Jan;9(1):37-50.


Anti-infection >
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Corydalmine hydrochloride

Corydalmine hydrochloride inhibits spore germination of some plant pathogenic as well as saprophytic fungi[1]. Corydalmine hydrochloride acts as an oral analgesic agent, exhibiting potent analgesic activity[2]. Corydalmine hydrochloride alleviates Vincristine-induced neuropathic pain in mice by inhibiting an NF-κB-dependent CXCL1/CXCR2 signaling pathway[3].

  • CAS Number: 2428393-60-4
  • MF: C20H24ClNO4
  • MW: 377.86
  • Catalog: Fungal
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Acefylline

Acefylline is an adenosine receptor antagonist.

  • CAS Number: 652-37-9
  • MF: C9H10N4O4
  • MW: 238.200
  • Catalog: Adenosine Receptor
  • Density: 1.6±0.1 g/cm3
  • Boiling Point: 555.7±56.0 °C at 760 mmHg
  • Melting Point: 270-272 °C
  • Flash Point: 289.9±31.8 °C

LY320135

LY320135 is a potent and selective antagonist of CB1 receptor, with a Ki of 141 nM. LY320135 also binds to 5-HT2 and muscarinic receptors with Kis of 6.4 μM and 2.1 μM, respectively. LY320135 exhibits neuroprotective effect[1][2].

  • CAS Number: 176977-56-3
  • MF: C24H17NO4
  • MW: 383.39600
  • Catalog: 5-HT Receptor
  • Density: 1.31g/cm3
  • Boiling Point: 617.2ºC at 760mmHg
  • Melting Point: N/A
  • Flash Point: 327.1ºC

Solriamfetol hydrochloride

Solriamfetol (JZP-110) is a selective dopamine and norepinephrine reuptake inhibitor with robust wake-promoting effects. Solriamfetol binds to dopamine and norepinephrine transporters, so it can inhibit reuptake of dopamine and norepinephrine. Solriamfetol treatment significantly improves the ability to stay awake and subjective symptoms of excessive sleepiness in adults with narcolepsy.

  • CAS Number: 178429-62-4
  • MF: C10H14N2O2
  • MW: 194.23
  • Catalog: Dopamine Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Sitaxentan sodium

Sitaxsentan (sodium) is an orally active, highly selective antagonist of endothelin A receptors.

  • CAS Number: 210421-74-2
  • MF: C18H14ClN2NaO6S2
  • MW: 476.88600
  • Catalog: Endothelin Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

2-Ethyl-5,7-Dimethyl-3H-Imidazo[4,5-B]Pyridine

Adenosine receptor antagonist 4 (compound 2) is an adenosine A1 receptor antagonist with a Ki of 101 nM for human A1 receptor[1].

  • CAS Number: 133240-06-9
  • MF: C10H13N3
  • MW: 175.23
  • Catalog: Adenosine Receptor
  • Density: 1.14g/cm3
  • Boiling Point: 370.502ºC at 760 mmHg
  • Melting Point: 142-146 °C
  • Flash Point: 174.175ºC

Galanin (1-13)-Substance P (5-11) amide

Galantide is a reversible and non-specific galanin receptor antagonist.

  • CAS Number: 138579-66-5
  • MF: C104H151N25O26S
  • MW: 2199.53000
  • Catalog: Peptides
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Dynorphin (2-17), amide (porcine)

Dynorphin (2-17), amide (porcine) is a dynorphin derivative with some analgesic effects. Dynorphin is a class of opioid peptides produced by the precursor protein dynorphinogen and is involved in pain, addiction and mood regulation[1].

  • CAS Number: 161874-98-2
  • MF: C90H147N31O20
  • MW: 1983.33
  • Catalog: Opioid Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

α-Helical CRF (9-41) trifluoroacetate salt

α-Helical Corticotropin Releasing Factor (9-41) is a corticotropin releasing factor (CRF) antagonist. α-Helical Corticotropin Releasing Factor (9-41) decreases plasma growth hormone (GH) values in vivo[1][2].

  • CAS Number: 99658-03-4
  • MF: C166H274N46O53S2
  • MW: 3826.36
  • Catalog: CRFR
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 717.1±60.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 387.5±32.9 °C

Decoglurant

Decoglurant (RO4995819) is a negative allosteric modulator of mGluR2 and mGluR3. Decoglurant is developed as an antidepressant[1].

  • CAS Number: 911115-16-7
  • MF: C21H11F6N5
  • MW: 447.33600
  • Catalog: mGluR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

G Protein Antagonist

G-Protein antagonist peptide is the substance P-related peptide that inhibits binding of G proteins to their receptors. G-Protein antagonist peptide competitively and reversibly inhibits M2 muscarinic receptor activation of Gi or Go and inhibits Gs activation by β-adrenoceptors.

  • CAS Number: 143675-79-0
  • MF: C57H64N12O9S
  • MW: 1093.26000
  • Catalog: Adrenergic Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Sulfinalol

Sulfinalol is an orally active β-adrenoceptor antagonist with direct vasodilator activity[1].

  • CAS Number: 66264-77-5
  • MF: C20H27NO4S
  • MW: 377.50
  • Catalog: Adrenergic Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Blonanserin

Blonanserin(AD-5423) is a D2/5-HT2 receptor antagonist, atypical antipsychotic. Target: D2 receptor; 5-HT2 receptorBlonanserin(AD-5423) is a relatively new atypical antipsychotic for the treatment of schizophrenia. Blonanserin belongs to a series of 4-phenyl-2-(1-piperazinyl)pyridines and acts as an antagonist at dopamine D2, D3, and serotonin 5-HT2A receptors. Blonanserin has low affinity for 5-HT2C, adrenergic α1, histamine H1, and muscarinic M1 receptors, but displays relatively high affinity for 5-HT6 receptors [1]. AD-5423 bound preferentially to dopamine (DA)-D2 (Ki, 14.8 nM; cf. haloperidol, 8.79 nM; and clozapine, 149 nM) and serotonin (5-HT)-S2 (Ki, 3.98 nM; cf. haloperidol, 26.8 nM; and clozapine, 8.66 nM) receptors. It displayed low affinity for adrenaline (Ad)-alpha-1 (Ki, 56.3 nM) receptors and was virtually devoid of binding to DA-D1 (Ki, 2870 nM), 5-HT-S3, Ad-alpha-2, Ad-beta, muscarine, tau-aminobutyric acid and benzodiazepine receptors. In addition, AD-5423 was only a weak inhibitor of DA, 5-HT and noradrenaline uptake systems. AD-5423 (0.2-2 mg/kg p.o.) decreased exploratory activity in mice. AD-5423 (10 mg/kg p.o.), unlike haloperidol, did not antagonize SKF38393-induced vacuous oral movements in rats. Head twitches induced by 1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane in mice and by para-chloroamphetamine in rats were antagonized by AD-5423 at much lower doses (0.5-2 mg/kg p.o.) than those of haloperidol and clozapine [2].

  • CAS Number: 132810-10-7
  • MF: C23H30FN3
  • MW: 367.503
  • Catalog: 5-HT Receptor
  • Density: 1.1±0.1 g/cm3
  • Boiling Point: 540.8±50.0 °C at 760 mmHg
  • Melting Point: 117-119°C
  • Flash Point: 280.9±30.1 °C

Adenosine receptor antagonist 1

Adenosine receptor antagonist 1 is a A2aR-selective antagonist with an IC50 of 0.29 nM and displays 14-fold more selective for A2aRthan A2bR.

  • CAS Number: 2682930-40-9
  • MF: C22H15ClFN7O
  • MW: 447.85
  • Catalog: Adenosine Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

KRAS G12C inhibitor 61

KRAS G12C inhibitor 61 (Example 3) inhibits phospho-ERK 1/2 in MIA PaCa-2 cells with an IC50 value of 9 nM. KRAS G12C inhibitor 61 can be used for research of pancreatic, colorectal, and lung cancers[1].

  • CAS Number: 2300967-40-0
  • MF: C31H33ClFN7O2
  • MW: 590.09
  • Catalog: Ras
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

JNJ 16259685

JNJ16259685 is a selective antagonist of mGlu1 receptor, and inhibits the synaptic activation of mGlu1 in a concentration-dependent manner with IC50 of 19 nM.

  • CAS Number: 409345-29-5
  • MF: C20H23NO3
  • MW: 325.40200
  • Catalog: mGluR
  • Density: 1.21g/cm3
  • Boiling Point: 502.5ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 257.7ºC

S 16474

S 16474 is an antagonist of Neurokinin-1 Receptor.

  • CAS Number: 149250-10-2
  • MF: C44H48N6NaO8
  • MW: 811.892
  • Catalog: Neurokinin Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

LY-255582

LY255582 is a pan-opioid antagonist and has high affinity for mu, delta, and kappa receptors (Ki: 0.4 nM, 5.2, 2.0 nM respectively). LY255582 can decrease food intake and body weight. LY255582 can be used for the research of obesity[1][2][3][4].

  • CAS Number: 119193-09-8
  • MF: C22H35NO2
  • MW: 345.51900
  • Catalog: Opioid Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

APD 668

APD668 is a potent GPR119 agonist with EC50 of 2.7 nM and 33 nM for hGPR119 and ratGPR119 respectively..IC50 value: 2.7 nM (EC50) [1]Target: GPR119Chronic treatment withAPD668 showed for the first time that blood glucose and glycated hemoglobin (HbA1c) levels could be significantly reduced in Zucker Diabetic Fatty (ZDF) rats over several weeks of dosing. APD668 was the ?rst compound with thismechanism of action to be progressed into clinical development for the treatment of diabetes.

  • CAS Number: 832714-46-2
  • MF: C21H24FN5O5S
  • MW: 477.509
  • Catalog: GPR119
  • Density: 1.5±0.1 g/cm3
  • Boiling Point: 611.6±55.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 323.7±31.5 °C

MK-7622

MK-7622 is a muscarinic M1 receptor positive allosteric modulator.Target: M1 receptorMK-7622 is useful in the treatment of diseases in which the M1 receptor is involved, such as Alzheimer's disease, schizophrenia, pain or sleep disorders.

  • CAS Number: 1227923-29-6
  • MF: C25H25N3O2
  • MW: 399.485
  • Catalog: mAChR
  • Density: 1.3±0.1 g/cm3
  • Boiling Point: 643.0±65.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 342.7±34.3 °C

Quinpirole dihydrochloride

rel-Quinpirole (rel-LY 141865) dihydrochloride, an ergot compound, is a selective dopamine (DA) D2 receptor agonist. rel-Quinpirole dihydrochloride can be used for research on neurological diseases[1].

  • CAS Number: 73625-62-4
  • MF: C13H22ClN3
  • MW: 255.78700
  • Catalog: Dopamine Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Argipressin Acetate

Argipressin (Arg8-vasopressin) (acetate) binds to the V1, V2, V3-vascular arginine vasopressin receptor, with a Kd value of 1.31 nM in A7r5 rat aortic smooth muscle cells for V1[1][2][3][4].

  • CAS Number: 129979-57-3
  • MF: C48H69N15O14S2
  • MW: 1144.28000
  • Catalog: Apoptosis
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Vemtoberant mesylate

Vemtoberant mesylate is an β3 Adrenergic Receptor antagonist. Vemtoberant mesylate can be used for research of β3 adrenergic receptor-mediated disorder, such as, heart failure[1][2].

  • CAS Number: 2169905-97-7
  • MF: C30H41N3O11S3
  • MW: 715.86
  • Catalog: Adrenergic Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

SR59230A

SR59230A is a potent, selective, and blood-brain barrier penetrating β3-adrenergic receptor antagonist[1] with IC50s of 40, 408, and 648 nM for β3, β1, and β2 receptors, respectively[2].

  • CAS Number: 174689-39-5
  • MF: C23H29NO6
  • MW: 415.47900
  • Catalog: Adrenergic Receptor
  • Density: N/A
  • Boiling Point: 542.6ºC at 760mmHg
  • Melting Point: N/A
  • Flash Point: 281.9ºC

SB-277011

SB-277011 is a potent and delective dopamine D3 receptor antagonist (pKi values are 8.0, 6.0, 5.0 and <5.2 for D3, D2, 5-HT1D and 5-HT1B respectively); brain penetrant.IC50 value: 8.0 (pKi)Target: D3 receptor

  • CAS Number: 215803-78-4
  • MF: C28H30N4O
  • MW: 438.564
  • Catalog: Dopamine Receptor
  • Density: 1.2±0.1 g/cm3
  • Boiling Point: 679.3±55.0 °C at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 364.6±31.5 °C

PAT-IN-1

PAT-IN-1 is a protein acyl transferases (PAT) inhibitor. PAT-IN-1 competitively inhibits Erf2 autopalmitoylation (WO2017011518A1; compound 13)[1].

  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

Chrysin 6-C-glucoside 8-C-arabinoside

Chrysin 6-C-glucoside 8-C-arabinoside can inhibit the CGRP releasing and the activation of TRPV1 channel. Chrysin 6-C-glucoside 8-C-arabinoside can be used for anti-migraine research[1].

  • CAS Number: 185145-34-0
  • MF: C26H28O13
  • MW: 548.49
  • Catalog: CGRP Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

(Tyr8)-Bradykinin

[Tyr8] Bradykinin is a B2 kinin receptor agonist. [Tyr8] Bradykinin also stimulates ERK1/2 phosphorylation. [Tyr8] Bradykinin can be used as an internal standard[1].

  • CAS Number: 32222-00-7
  • MF: C50H73N15O12
  • MW: 1076.21000
  • Catalog: Bradykinin Receptor
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A

ICI 192605

ICI 192605 is a potent TXA2R (thromboxane A2 receptor) antagonist as cell signaling prostaglandin. ICI 192605 blocks contraction of isolated guinea pig trachea induced by U-46619[1].

  • CAS Number: 117621-64-4
  • MF: C22H23ClO5
  • MW: 402.86800
  • Catalog: Prostaglandin Receptor
  • Density: 1.262 g/cm3
  • Boiling Point: 540.1ºC at 760 mmHg
  • Melting Point: N/A
  • Flash Point: 280.4ºC

(±)-Darifenacin

(±)-Darifenacin is the racemate of Darifenacin. Darifenacin is a selective M3 muscarinic receptor antagonist[1].

  • CAS Number: 133033-93-9
  • MF: C28H30N2O2
  • MW: 426.55
  • Catalog: mAChR
  • Density: N/A
  • Boiling Point: N/A
  • Melting Point: N/A
  • Flash Point: N/A