(±)-2-Amino-4-phosphonobutyric acid may be used as a glutamic acid receptor blocker in perfusion solution in the eye tissue electroretinography studies.
(±)-2-Amino-4-phosphonobutyric acid or DL-AP4 is a group III nonselective metabotropic glutamate receptor (mGluR) agonist. L-2-amino-4-phosphonobutyric acid (L-Ap4) displays close to 500-fold selectivity for group III mGluRs.
Broad spectrum EAA ligand. See separate isomers (D-(-)-2-Amino-4-phosphonobutyric acid and L-(+)-2-Amino-4-phosphonobutyric acid).
