S-EMCA   Click here for help

GtoPdb Ligand ID: 7048

Synonyms: 6α-ethyl-23(S)-methyl-cholic acid | INT-777 | INT777
PDB Ligand Immunopharmacology Ligand
Compound class: Synthetic organic
Comment: S-EMCA (INT-777) is a potent and selective agonist of the G-protein-coupled bile acid receptor TGR5 (gene symbol GPBAR1) which is formally known as the GPBA receptor [3]. The GPBA receptor was historically identified as a metabolic regulator with roles in energy homeostasis, bile acid homeostasis, and glucose metabolism. More recently additional functions for the GPBA receptor such as regulation of the inflammatory response, cancer and liver regeneration have been described [1].
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2D Structure
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Physico-chemical Properties
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Hydrogen bond acceptors 5
Hydrogen bond donors 4
Rotatable bonds 5
Topological polar surface area 97.99
Molecular weight 450.33
XLogP 5.25
No. Lipinski's rules broken 1
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Isomeric SMILES CC[C@H]1[C@@H](O)[C@H]2[C@@H]3CC[C@@H]([C@@]3(C)[C@H](C[C@@H]2[C@@]2([C@H]1C[C@H](O)CC2)C)O)[C@@H](C[C@@H](C(=O)O)C)C
InChI InChI=1S/C27H46O5/c1-6-17-20-12-16(28)9-10-26(20,4)21-13-22(29)27(5)18(14(2)11-15(3)25(31)32)7-8-19(27)23(21)24(17)30/h14-24,28-30H,6-13H2,1-5H3,(H,31,32)/t14-,15+,16-,17-,18-,19+,20+,21+,22+,23+,24-,26+,27-/m1/s1
1. Guo C, Chen WD, Wang YD. (2016)
TGR5, Not Only a Metabolic Regulator.
Front Physiol, 7: 646. [PMID:28082913]
2. Li B, Yang N, Li C, Li C, Gao K, Xie X, Dong X, Yang J, Yang Q, Tong Z et al.. (2018)
INT-777, a bile acid receptor agonist, extenuates pancreatic acinar cells necrosis in a mouse model of acute pancreatitis.
Biochem Biophys Res Commun, 503 (1): 38-44. [PMID:29859191]
3. Pellicciari R, Gioiello A, Macchiarulo A, Thomas C, Rosatelli E, Natalini B, Sardella R, Pruzanski M, Roda A, Pastorini E et al.. (2009)
Discovery of 6alpha-ethyl-23(S)-methylcholic acid (S-EMCA, INT-777) as a potent and selective agonist for the TGR5 receptor, a novel target for diabesity.
J Med Chem, 52 (24): 7958-61. [PMID:20014870]