Figure 3.

Alignment of rat and marine ray predicted synaptotagmin amino acid sequences. The amino acid sequences of syt VI and syt X from rat and p65C from marine ray are aligned. Identical amino acid residues for all three genes are highlighted in black. The predicted syt X protein is most similar to syt VI and p65C, with overall identities of 62% and 52%, respectively. These three synaptotagmin genes share an additional region of amino acid homology that is not found in other synaptotagmin family members. This region is located between the transmembrane domain and the two C2 domains.