– Tat-NR2BAA TFA serves as the inactive control peptide for Tat-NR2B9c, featuring a comparable sequence with a crucial distinction: a double-point mutation in its COOH-terminal tSXV motif. This alteration renders Tat-NR2BAA TFA unable to bind to PSD-95, in contrast to Tat-NR2B9c. The latter is a membrane-permeant peptide that impedes PSD-95/NMDAR interaction, specifically detaching NR2B- and/or NR2A-type NMDARs from PSD-95 [1].