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L-(+)-2-Amino-4-phosphonobutyric acid

optical purity optical purity: ≥95% (HPLC, Marfey′s reagent)

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L-AP-4, L-AP4
Empirical Formula (Hill Notation):
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optical purity

optical purity: ≥95% (HPLC, Marfey′s reagent)

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optical purity

optical purity: ≥95% (HPLC, Marfey′s reagent)

optical purity


optical purity


optical purity


Gene Information

human ... GRM1(2911), GRM2(2912), GRM3(2913), GRM4(2914), GRM6(2916), GRM7(2917), GRM8(2918)
rat ... Grm1(24414), Grm2(24415), Grm4(24417), Grm5(24418), Grm6(24419), Grm7(81672)

Gene Information

human ... GRIN1(2902), GRIN2A(2903), GRIN2B(2904), GRIN2C(2905), GRIN2D(2906), GRINA(2907)
rat ... Grin2b(24410)

Gene Information


Gene Information

human ... TPH1(7166), TPH2(121278)
mouse ... TPH1(21990), TPH2(216343)
rat ... TPH1(24848), TPH2(317675)

Biochem/physiol Actions

mGluR4 and mGluR6 metabotropic glutamate receptor agonist.

Storage Class

11 - Combustible Solids




dust mask type N95 (US), Eyeshields, Gloves

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Yong Lu et al.
The Journal of physiology, 596(10), 1981-1997 (2018-03-25)
Binaural excitatory inputs to coincidence detection neurons in nucleus laminaris (NL) play essential roles in interaural time difference coding for sound localization. Here, we show that the two excitatory inputs are physiologically nearly completely segregated. Synaptic integration shows linear summation
Chelliah Selvam et al.
Journal of medicinal chemistry, 53(7), 2797-2813 (2010-03-12)
(R)-PCEP (3-amino-3-carboxypropyl-2'-carboxyethyl phosphinic acid, 1), a new metabotropic glutamate receptor 4 (mGlu4R) agonist, was discovered in a previously reported virtual screening. The (S)-enantiomer and a series of derivatives were synthesized and tested on recombinant mGlu4 receptors. A large number of
Nazarul Hasan et al.
eNeuro, 7(1) (2020-01-22)
The first retinal synapse, photoreceptor→bipolar cell (BC), is both anatomically and functionally complex. Within the same synaptic region, a change in presynaptic glutamate release is sensed by both ON BCs (DBCs) via the metabotropic glutamate receptor 6 (mGluR6), and OFF
Pauline Sibille et al.
Journal of medicinal chemistry, 50(15), 3585-3595 (2007-07-03)
Stereoisomers of 1-amino-2-phosphonomethylcyclopropanecarboxylic acid (APCPr), conformationally restricted analogues of L-AP4 (2-amino-4-phosphonobutyric acid), have been prepared and evaluated at recombinant group III metabotropic glutamate receptors. They activate these receptors over a broad range of potencies. The most potent isomer (1S,2R)-APCPr displays
Y Nakajima et al.
The Journal of biological chemistry, 268(16), 11868-11873 (1993-06-05)
A cDNA clone for a new metabotropic glutamate receptor, termed mGluR6, was isolated from a rat retinal cDNA library by cross-hybridization with the previously isolated cDNA clone for a metabotropic glutamate receptor. The cloned mGluR6 subtype consists of 871 amino

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