Ro 5212773_product_DataBase

Bioactivity

Ro 5212773 (EPPTB) is a potent and selective trace amine-associated receptor 1 (TAAR1) antagonist (Ki=0.9 nM for mouse TAAR1), with no significant effects on other TAARs. TAAR1 is a G protein-coupled receptor (GPCR) that is nonselectively activated by endogenous metabolites of amino acids[1][2].

Invitro

Ro 5212773 (EPPTB) suppresses the excitability of hippocampal pyramidal neurons. EPPTB also reduceds seizure-like events (SLEs) and seizure activity[1].Ro 5212773 blocks the TAAR1-mediated activation of an inwardly rectifying K+ current[2].Ro 5212773 potently antagonizes cAMP production induced by activating mouse TAAR1 with 1.5 μM β-phenylethylamine (IC50=27.5 nM). cAMP levels are dose-dependently reduced by Ro 5212773 in HEK293 cells in the absence of TAAR1 agonist (IC50= 19 nM). EPPTB is significantly more potent in antagonizing cAMP production by mouse, as compared to rat (IC50= 4539 nM) and human (IC50= 7487 nM) TAAR1[2].

Name

Ro 5212773

CAS

1110781-88-8

Formula

C20H21F3N2O2

Molar Mass

378.39

Appearance

Solid

Transport

Room temperature in continental US; may vary elsewhere.

Storage

Powder	-20°C	3 years
	4°C	2 years
In solvent	-80°C	6 months
	-20°C	1 month

Reference

[1]. Bradaia A, et al. The selective antagonist EPPTB reveals TAAR1-mediated regulatory mechanisms in dopaminergic neurons of the mesolimbic system. Proc Natl Acad Sci U S A. 2009;106(47):20081-20086.

PeptideDB

Ro 5212773

CAS: 1110781-88-8 F: C20H21F3N2O2 W: 378.39