Fusion protein amino acids 77-299 (PDZ domains 1 and 2) of human PSD-95 (also known as Postsynaptic density protein 95, Disks large homolog 4, Synapse-associated protein 90, DLG4, Dlgh4 and SAP-90, accession number P78352)
Rat: 100% identity (223/223 amino acids identical)Mouse: 99% identity (221/223 amino acids identical)65-80% identity with DLG1/SAP97, DLG2/Chapsyn-110 and DLG3/SAP102