GR 231118

Discontinued Product

GR 231118 (Cat. No. 1486) has been withdrawn from sale for commercial reasons.
Description: Potent NPY Y1 antagonist/NPY Y4 agonist. Binds to NPFF receptors
Alternative Names: 1229U91,GW 1229
Literature (1)

Biological Activity for GR 231118

GR 231118 is a potent neuropeptide Y (NPY) Y1 receptor antagonist (pA2 = 10 and 10.5 at rY1 and hY1, receptors respectively). Also a potent and selective NPY Y4 receptor agonist (pEC50 values are 6.0, 8.6 and 6.1 for rY2, hY4 and rY5 receptors respectively). Suppresses food intake in rats in vivo. Also has affinity for neuropeptide FF (NPFF) receptors in vitro (Ki = 43-73 nM).

Technical Data for GR 231118

M. Wt 2352.77
Formula C110H170N34O24

(Modifications: X = Dpr, Amide Bridge = 2 - 4*, 4 - 2*, Tyr-9 = C-terminal amide)

Storage Desiccate at -20°C
CAS Number 158859-98-4
PubChem ID 24868178
Smiles [H]N[C@@H]([C@@H](C)CC)C(=O)N[C@H]1CCC(=O)NCC(NC(=O)[C@@H]2CCCN2C(=O)[C@H](CCC(=O)NCC(NC(=O)[C@@H]2CCCN2C1=O)C(=O)N[C@@H](CC1=CC=C(O)C=C1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC1=CC=C(O)C=C1)C(N)=O)NC(=O)[C@@H](N[H])[C@@H](C)CC)C(=O)N[C@@H](CC1=CC=C(O)C=C1)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC(C)C)C(=O)N[C@@H](CCCNC(N)=N)C(=O)N[C@@H](CC1=CC=C(O)C=C1)C(N)=O

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.

Product Datasheets for GR 231118

Certificate of Analysis / Product Datasheet
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References for GR 231118

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

Ishihara et al (1998) A potent neuropeptide Y antagonist, 1229U91, suppressed spontaneous food intake in Zucker fatty rats. Am.J.Physiol. 274 R1500 PMID: 9612420

Mollereau et al (2001) Agonist and antagonist activities on human NPFF2 receptors of the NPY ligands GR231118 and BIBP3226. Br.J.Pharmacol. 133 1 PMID: 11325787

Parker et al (1998) GR231118 (1229U91) and other analogues of the C-terminus of neuropeptide Y are potent neuropeptide Y Y1 receptor antagonists and neuropeptide Y Y4 receptor agonists. Eur.J.Pharmacol. 349 97 PMID: 9669502

Keywords: GR 231118, GR 231118 supplier, NPFF, receptor, ligands, NPY, Y1, antagonists, Y4, agonists, Neuropeptide, FF, GR231118, npffr1, npffr2, npff1, npff2, GW1229, 1229, U91, neuropeptides, 1229U91, GW, Receptors, FF/AF, 1486, Tocris Bioscience

Citations for GR 231118

Citations are publications that use Tocris products.

Currently there are no citations for GR 231118.

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Literature in this Area

Tocris offers the following scientific literature in this area to showcase our products. We invite you to request* your copy today!

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Peptides Involved in Appetite Modulation Scientific Review

Peptides Involved in Appetite Modulation Scientific Review

Written by Sonia Tucci, Lynsay Kobelis and Tim Kirkham, this review provides a synopsis of the increasing number of peptides that have been implicated in appetite regulation and energy homeostasis; putative roles of the major peptides are outlined and compounds available from Tocris are listed.