Fusion protein amino acids 834-883 (EFCYKSRAEAKRMKVAKNPQNINPSSSQNSQNFATYKEGYNVYGIESVKI, cytoplasmic C-terminus) of rat GluA2/GluR2 (also known as Glutamate receptor 2, AMPA-selective glutamate receptor 2, Glutamate receptor ionotropic AMPA 2, GluR-B, GluR-K2 and Gria2, accession number P19491)
Mouse: 98% identity (49/50 amino acids identical)
Human: 98% identity (49/50 amino acids identical)
100% identity between Flip and Flop isoforms
>70% identity with GluA3/GluR3 and less identity with GluA1/GluR1 and GluA4/GluR4