Fig. 3From: Phylogenetic analysis of ionotropic L-glutamate receptor genes in the Bilateria, with special notes on Aplysia californica Conserved motifs in Aplysia and H. sapiens. Boxed region denotes SYTANLAAFL motif vital for formation of the channel pore and activation gate, and in all subunits this high selective pressure has resulted in highly conserved amino acid sequences over large evolutionary distances. This motif is also conserved in all other chordates in this studyBack to article page