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Cat.No. 3678 - G-15 | C19H16BrNO2 | CAS No. 1161002-05-6
Description: High affinity and selective GPER antagonist
Chemical Name: (3aS*,4R*,9bR*)-4-(6-Bromo-1,3-benzodioxol-5-yl)-3a,4,5,9b-3H-cyclopenta[c]quinoline
Purity: ≥99% (HPLC)
Citations (21)
Reviews (1)
Literature (1)
Pathways (1)

Biological Activity for G-15

G-15 is a high affinity and selective GPER receptor antagonist (Ki = 20 nM) that displays no affinity for ERα and ERβ at concentrations up to 10 μM. Inhibits agonist-induced calcium mobilization in vitro (EC50 of ~185 nM) and antagonizes the antidepressive and renoprotective effects of estrogen in vivo.

Technical Data for G-15

M. Wt 370.24
Formula C19H16BrNO2
Storage Store at -20°C
Purity ≥99% (HPLC)
CAS Number 1161002-05-6
PubChem ID 90488870
Smiles BrC1=CC4=C(OCO4)C=[C@@]1[C@@H]2NC(C=CC=C5)=C5[C@@]3([H])[C@@]([H])2CC=C3.BrC6=CC9=C(OCO9)C=[C@@]6[C@H]7NC(C=CC=C%10)=C%10[C@]8([H])[C@]([H])7CC=C8

The technical data provided above is for guidance only. For batch specific data refer to the Certificate of Analysis.

Tocris products are intended for laboratory research use only, unless stated otherwise.

Solubility Data for G-15

Solvent Max Conc. mg/mL Max Conc. mM
DMSO 18.51 50

Preparing Stock Solutions for G-15

The following data is based on the product molecular weight 370.24. Batch specific molecular weights may vary from batch to batch due to the degree of hydration, which will affect the solvent volumes required to prepare stock solutions.

Select a batch to recalculate based on the batch molecular weight:
Concentration / Solvent Volume / Mass 1 mg 5 mg 10 mg
0.5 mM 5.4 mL 27.01 mL 54.02 mL
2.5 mM 1.08 mL 5.4 mL 10.8 mL
5 mM 0.54 mL 2.7 mL 5.4 mL
25 mM 0.11 mL 0.54 mL 1.08 mL

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Product Datasheets for G-15

Certificate of Analysis / Product Datasheet
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References for G-15

References are publications that support the biological activity of the product.

Dennis et al (2009) In vivo effects of a GPR30 antagonist. Nat.Chem.Biol. 5 421 PMID: 19430488

Hutchens et al (2012) Estrogen protects renal endothelial barrier function from ischemia-reperfusion in vitro and in vivo. Am.J.Physiol.Renal Physiol. 303 377 PMID: 22622457

Yue et al (2019) Activation of G-protein-coupled receptor 30 protects neurons against excitotoxicity through inhibiting excessive autophagy induced by glutamate. ACS Chem.Neurosci. 10 4227 PMID: 31545891

If you know of a relevant reference for G-15, please let us know.

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Keywords: G-15, G-15 supplier, high, affinity, selective, GPR30, antagonist, estrogen, oestrogen, receptors, GPER, Estrogen, (GPER), Receptors, 3678, Tocris Bioscience

21 Citations for G-15

Citations are publications that use Tocris products. Selected citations for G-15 include:

Bugel et al (2016) Phenotype anchoring in zebrafish reveals a potential role for matrix metalloproteinases (MMPs) in tamoxifen's effects on skin epithelium. Toxicol Appl Pharmacol 296 31 PMID: 26908177

Mazzuca et al (2015) Estrogen receptor subtypes mediate distinct microvascular dilation and reduction in [Ca2+]I in mesenteric microvessels of female rat. J Pharmacol Exp Ther 352 291 PMID: 25472954

Bian et al (2019) 17β-E2 Regulates Glucose Metabolism and Ins. Secretion in Rat Islet β Cells Through GPER and Akt/mTOR/GLUT2 Pathway. Front Endocrinol (Lausanne) 10 531 PMID: 31447779

Loiola et al (2019) Estrogen Promotes Pro-resolving Microglial Behavior and Phagocytic Cell Clearance Through the Actions of Annexin A1. Front Endocrinol (Lausanne) 10 420 PMID: 31297095

Koong and Watson (2014) Direct OE and diethylstilbestrol actions on early- versus late-stage prostate cancer cells. Prostate 74 1589 PMID: 25213831

Cortes et al (2019) TAX mechanically deactivates hepatic stellate cells via the G protein-coupled estrogen receptor. Oncogene 38 2910 PMID: 30575816

Cortes et al (2019) TAX mechanically reprograms the tumor microenvironment via HIF-1A and reduces cancer cell survival. EMBO Rep 20 PMID: 30538116

Cortes et al (2019) GPER is a mechanoregulator of pancreatic stellate cells and the tumor microenvironment. EMBO Rep 20 PMID: 30538117

An et al (2014) Estrogen rapidly enhances incisional pain of ovariectomized rats primarily through the G protein-coupled estrogen receptor. J Neurosci 15 10479 PMID: 24921706

Liu et al (2011) Spinal synthesis of estrogen and concomitant signaling by membrane estrogen receptors regulate spinal κ- and μ-opioid receptor heterodimerization and female-specific spinal mor. antinociception. J Neurosci 31 11836 PMID: 21849544

Caballero et al (2017) Understanding the dynamics of Toll-like Receptor 5 response to flagellin and its regulation by estradiol. Sci Rep 7 40981 PMID: 28112187

Treen et al (2016) Divergent regulation of ER and kiss genes by 17 beta -OE in hypothalamic ARC versus AVPV models. Mol.Endocrinol. 30 217 PMID: 26726951

Bertrand et al (2015) HIV-1 Tat and cocaine mediated synaptopathy in cortical and midbrain neurons is prevented by the isoflavone Equol. Mol Med Rep 6 894 PMID: 26441850

Chen et al (2015) G-protein-coupled receptor 30-mediated antiapoptotic effect of estrogen on spinal motor neurons following injury and its underlying mechanisms. Sci Rep 12 1733 PMID: 25872489

Villa et al (2015) Estrogen accelerates the resolution of inflammation in macrophagic cells. Breast Cancer Res 5 15224 PMID: 26477569

Yuan et al (2015) Acquisition of epithelial-mesenchymal transition phenotype in the tamoxifen-resistant breast cancer cell: a new role for G protein-coupled estrogen receptor in mediating tamox. resistance through cancer-associated fibroblast-derived fibronectin and PLoS One 17 69 PMID: 25990368

Carnesecchi et al (2015) Estrogens induce rapid cytoskeleton re-organization in human dermal fibroblasts via the non-classical receptor GPR30. Int J Mol Sci 10 e0120672 PMID: 25781607

Francesco et al (2014) GPER mediates activation of HIF1α/VEGF signaling by estrogens. Cancer Res 74 4053 PMID: 24894716

Duncan et al (2012) 2-MethoxyOE inhibits experimental autoimmune encephalomyelitis through suppression of immune cell activation. Proc Natl Acad Sci U S A 109 21034 PMID: 23213242

Kanageswaran et al (2016) Modulatory Effects of Sex Steroids Progesterone and OE on Odorant Evoked Responses in Olfactory Receptor Neurons. PLoS One 11 e0159640 PMID: 27494699

Sandner et al (2014) Expression of the oestrogen receptor GPER by testicular peritubular cells is linked to sexual maturation and male fertility. Andrology 2 695 PMID: 25052196

Do you know of a great paper that uses G-15 from Tocris? Please let us know.

Reviews for G-15

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G-15 as inhibitor of gper30 in rat endothelial cells.
By Anonymous on 01/04/2018
Assay Type: In Vitro
Species: Rat
Cell Line/Tissue: endothelial cell primary culture

i used to blocked the gper30 receptor in endothelial cell culture to quantificate if estradiol and metabolites induce mobilization of calcium

I order this product from chile

Literature in this Area

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GPCR Product Listing

A collection of over 450 products for G protein-coupled receptors, the listing includes research tools for the study of:

  • Rhodopsin-like Receptors
  • Glutamate Receptors
  • Frizzled Receptors
  • GPCR Signaling

Pathways for G-15


Estrogen Signaling Pathway

Estrogen is a steroid hormone that is responsible for the regulation of growth, differentiation and function of the reproductive system. Estrogen signaling is often dysregulated in breast cancer and osteoporosis.