Fluoroglutamine (2S,4R) is a Glutamine analog, not metabolized in the TCA cycle, but it can be incorporated into proteins and peptides. Fluoroglutamine (2S,4R) can be used as assess transporter (ASCT2) activity or protein synthesis rate.
V-9302 hydrochloride is a potent and selective competitive antagonist that inhibits transmembrane glutamine flux by specifically targeting the amino acid transporter ASCT2 (SLC1A5), and not ASCT1. In HEK-293 cells, V-9302 hydrochloride effectively inhibits ASCT2-mediated glutamine uptake with an IC50 value of 9.6 μM.