VU0652835 is a metabotropic glutamate receptor subtype 5 (mGlu5) negative allosteric modulator with an IC50 of 81 nM[1].
DCG-IV is a potent agonist of group II mGluRs with EC50s of 0.35 and 0.09 μM for mGlu2R and mGlu3R, reapectively. DCG-IV is also a competitive antagonist at group I (IC50: mGlu1R/5R=389/630 μM) and III receptors (IC50: mGlu4R/6R/7R/8R= 22.5/39.6/40.1/32 μM). DCG-IV has anticonvulsive and neuroprotective effects[1][2].
VU0155094 is a potent, selective pan-Group III mGlu positive allosteric modulator with IC50 of 3.43/1.5/0.93 uM for mGlu8/7/4, respectively; displays >30-fold selectivity over groups I and II mGlus (mGlu1/2/3/5/6).
L-Glutamine is a non-essential amino acid present abundantly throughout the body and is involved in gastrointestinal disorders.Target: mGluRGlutamine (abbreviated as Gln or Q) is one of the 20 amino acids encoded by the standard genetic code. It is not recognized as an essential amino acid, but may become conditionally essential in certain situations, including intensive athletic training or certain gastrointestinal disorders. Its side-chain is an amide formed by replacing the side-chain hydroxyl of glutamic acid with an amine functional group, making it the amide of glutamic acid. Its codons are CAA and CAG. In human blood, glutamine is the most abundant free amino acid, with a concentration of about 500-900 μmol/L. Glutamine is synthesized by the enzyme glutamine synthetase from glutamate and ammonia. The most relevant glutamine-producing tissue is the muscle mass, accounting for about 90% of all glutamine synthesized. Glutamine is also released, in small amounts, by the lung and the brain. Although the liver is capable of relevant glutamine synthesis, its role in glutamine metabolism is more regulatory than producing, since the liver takes up large amounts of glutamine derived from the gut. The most eager consumers of glutamine are the cells of intestines, the kidney cells for the acid-base balance, activated immune cells, and manycancer cells. In respect to the last point mentioned, different glutamine analogues, such as DON, Azaserine or Acivicin, are tested as anticancer drugs.
Ro 01-6128 is a positive allosteric modulator of mGluR1[1].
L-CCG-I is an extended isomer of conformationally restricted glutamate analog. L-CCG-I also is a potent agonist for mGluR2 with an EC50 value of 0.3 nM. L-CCG-I can be used for the research of mGluR family[1].
Biphenylindanone A (BINA) is a selective human mGluR2 (hmGluR2) potentiator for the treatment of many neurological disorders[1].
ACPT-II is an agonist of group III mGluRs with diverse biological activities including neuroprotective, anticonvulsant, and anxiolytic-like effects[1][2][3][4][5].
VU6004909 is a mGlu5 receptor positive allosteric modulator (pEC50: 7.59). VU6004909 shows antipsychotic-like effects. VU6004909 can reverse MK801-induced cortical hyperactivity and cognitive deficits[1][2].
Decoglurant (RO4995819) is a negative allosteric modulator of mGluR2 and mGluR3. Decoglurant is developed as an antidepressant[1].
JNJ16259685 is a selective antagonist of mGlu1 receptor, and inhibits the synaptic activation of mGlu1 in a concentration-dependent manner with IC50 of 19 nM.
MCPG is a carboxylic phenyl glycine. MCPG can block metabotropic glutamate receptor (mGluR)(HY-15129) and has antagonistic activity of mGluR subtype. MCPG can be used to study the induction and maintenance of long-term potentiation (LTP) [1].
VU0080241 is a positive allosteric modulator (PAM) of the metabotropic glutamate receptor subtype 4 (mGluR4), with an EC50 of 4.6 μM[1].
NPEC-caged-LY379268 is a type II mGluR agonist[1].
mGluR2 antagonist 1 is a highly potent, orally bioavailable and selective class of mGluR2 negative allosteric modulator (IC50 of 9 nM) with excellent brain permeability[1].
mGluR2 modulator 1 (compound 95) is a potent and BBB-penetrated mGluR2 (metabotropic glutamate receptor-2) positive allosteric modulator, with an EC50 of 0.03 μM. mGluR2 modulator 1 can be used for psychosis research[1].
L-Cysteinesulfinic acid is a potent agonist at several rat metabotropic glutamate receptors (mGluRs) with pEC50s of 3.92±0.03, 4.6±0.2, 3.9±0.2, 2.7±0.2, 4.0±0.2, and 3.94±0.08 for mGluR1, mGluR5, mGluR2, mGluR4, mGluR6, and mGluR8, respectively.
MPEP hydrochloride is a potent and highly selective non-competitive antagonist at the mGlu5 receptor subtype with IC50 of 36 nM.IC50 Value: 36 nMTarget: mGluRin vitro: MPEP has no appreciable agonist or antagonist activity at the closely related recombinant human mGlu1b receptor expressed in CHO-K1 cells or a purinoreceptor endogenously expressed in L(tk-) cells up to concentrations of 100 μM. Furthermore, MPEP shows no appreciable agonist or antagonist activity in cAMP accumulation or [35S]-GTPγS binding assays at the recombinant human group II and III metabotropic receptors (human mGlu2, -3, -4a, -6, -7b, -8a) as well as the human NMDA (NMDAR1A/2A, -1A/2B), rat AMPA (GluR3) and human kainate (GluR6) receptor subtypes. In slices of rat neonatal hippocampus, striatum, and cortex but not cerebellum, MPEP inhibits DHPG-stimulated PI hydrolysis with IC50 of 8.0 nM, 20.5 nM, and 17.9 nM, respectively. MPEP positively modulates the hmGluR4 in a recombinant expression system, and the effect of MPEP is fully dependent on the activation of the orthosteric agonist L-AP4.in vivo: MPEP (1-30 mg/kg) induces anxiolytic-like effects in the conflict drinking test and the elevated plus-maze test in rats as well as in the four-plate test in mice. MPEP (1-20 mg/kg) shortens the immobility time in a tail suspension test in mice, but it is inactive in the behavioural despair test in rats. MPEP has no effect on locomotor activity or motor coordination. MPEP significantly reduces fmr1 but not wild-type center square entries and duration. In open field tests, MPEP reduces fmr1tm1Cgr center field behavior to one indistinguishable from wild-type. MPEP produces a significant reduction of total locomotor activity in three of four groups tested, at both 10 mg/kg and 30 mg/kg.
mGluR5 antagonist-1 (compound 10) is a high-affinity mGluR5 antagonist, with an IC50 value of 11.5 nM. mGluR5 antagonist-1 has anti-depressant effect[1].
MMPIP is an allosteric metabotropic glutamate receptor 7 (mGluR7) selective antagonist (KB values 24 -30 nM). MMPIP acts as a pharmacological tool for elucidating the roles of mGluR7 on central nervous system functions. MMPIP alleviates pain and normalizes affective and cognitive behavior in neuropathic mice[1][2].
L-Glutamine-15N2 (L-Glutamic acid 5-amide-15N2) is the 15N-labeled L-Glutamine. L-Glutamine (L-Glutamic acid 5-amide) is a non-essential amino acid present abundantly throughout the body and involved in many metabolic processes. L-Glutamine provides a source of carbons for oxidation in some cells[1][2].
VU0364770 hydrochloride is a selective and potent positive allosteric modulator (PAM) of mGlu4. VU0346770 hydrochloride exhibits EC50s of 290 nM and 1.1 μM at rat mGlu4 and human mGlu4 receptor, respectively. VU0364770 hydrochloride exhibits antagonist activity at mGlu5 with a potency of 17.9 μM and PAM activity at mGlu6 with a potency of 6.8 μM. VU0364770 hydrochloride also possesses activity at MAO with Ki values of 8.5 and 0.72 μM for human MAO-A and human MAO-B, respectively[1].
(rel)-Eglumegad ((rel)-LY354740) is the racemic isomer of Eglumegad (HY-18941). Eglumegad is a highly potent and selective group II (mGlu2/3) receptor agonist with EC50s of 5 and 24 nM for transfected human mGlu2 and mGlu3 receptors, respectively[1].
VU0360172 is a potent and selective mGlu5 receptor positive allosteric modulator with an EC50 value of 16 nM and a Ki of 195 nM, respectively. VU0360172 stimulates polyphosphoinositide (PI) hydrolysis in vivo, which is abrogated in mGlu5 receptors gene deleted mice[1].
MTEP is a potent, non-competitive and highly selective mGluR5 antagonist, with an IC50 of 5 nM and a Ki of 16 nM. MTEP shows antidepressant and anxiolytic-like effects. MTEP can be used for Parkinson's disease research[1][2][3][4].
MK-8768 is a highly potent, orally bioavailable and selective class of mGluR2 negative allosteric modulator (IC50 of 9 .6nM) with excellent brain permeability.
(RS)-MCPG is a non-selective group I/group II metabotropic glutamate receptor antagonist.
DL-AP3 is a competitive mGluR1 and mGluR5 antagonist. DL-AP3 is also an inhibitor of phosphoserine phosphatase. DL-AP3 has neuroprotective effect[1][2][3].
L-AP4 (L-APB) monohydrate is a potent and specific agonist for the group III mGluRs, with EC50s of 0.13, 0.29, 1.0, 249 μM for mGlu4, mGlu8, mGlu6 and mGlu7 receptors, respectively[1][2].
VU0364289 is a highly selective mGlu5 positive allosteric modulator (PAM) (binds to the MPEP (HY-14609A) site), with an EC50 of 1.6 µM. VU0364289 can reverse amphetamine-induced hyperlocomotion in a dose-dependent manner, which can be used for schizophrenia and other psychiatric research[1][2][3].