rat mglur4

VU0155041 is an effective and positive allosteric modulator allosteric agonist at mGlu4 receptors (EC50: 798 693 nM, at human rat).

(1R,2S)-VU0155041 is the cis regioisomer of VU0155041 and a partial agonist of mGluR4.

VU0361737 (ML-128) is a specific positive allosteric modulator (PAM) of the mGlu4 receptor with an EC50 of 240 nM for human receptors and 110 nM for rat receptors. It exhibits weak activity at mGlu5 and mGlu8 receptors and is inactive at mGlu1, mGlu2, mGlu3, mGlu6, and mGlu7 receptors. The compound can penetrate the CNS.

VU-29 is a positive allosteric mGlu5 receptor modulator with an EC50 of 9 nM and a Ki of 244 nM for rmGluR5. It is selective for mGluR5 relative to other mGluR subtypes [EC50: rmGluR1 rmGluR2=557 nM 1.5 μM; hmGluR4=154 nM].

L-Cysteinesulfinic acid monohydrate is a potent agonist at rat metabotropic glutamate receptors (mGluRs) with pEC50s of 3.92, 4.6, 3.9, 2.7, 4.0, and 3.94 for mGluR1, mGluR5, mGluR2, mGluR4, mGluR6, and mGluR8, respectively [1].