Fixed amino acid differences between a given DLX gene and all other DLX genes (excluding fast evolving sequences).

aincluding Teleostei sequences.bsequences from Teleostei.cAn H is observed in the Elasmobranchii DLX4 sequence.dNot observed in DLX4 Ornithorhynchus anatinus. Amphibian DLX1 and DLX6 sequences also show a Y at this position.eAn H is also observed in Amphibian DLX1 sequences and in the Elasmobranchii DLX4 sequence.