Fig. 1

Multiple amino acid sequence alignment of conserved zinc-finger DNA-binding domain from the abalone MTF-1 along with those from representative orthologs. In the alignment, conserved amino acid residues are indicated by red-colored letters, and two cysteines and two histidines typical of the C₂H₂ structure for each zinc finger are boxed. The putative auxiliary nuclear localization signal (aNLS) conserved in the front of the first zinc finger is indicated by upper line. The accession code for each sequence is noted at the end of alignment. The alignment with full-length polypeptide sequences and the full name of each species can be referred to Additional file 1: Figure S2