Zebrafish SEPT6. (A) Alignment of amino acid sequences of SEPT6 from human (Uniprot accession number Q14141.4), mouse (Q9R1T4.4), frog (AAH77941.1), and zebrafish (AAH56592.1). The GTPase CDC domain, septin unique element, and coiled-coil domain are highlighted in different colors. The G1, G3, G4, S1, S2, S3, and S4 motifs are boxed. (B) Phylogenetic analysis of amino acid sequences from the indicated species. The distance scale represents the degree of difference between sequences (e.g., 0.1 indicates a 10% difference between two sequences). (C) Chromosome linkage analysis of sept6 from the indicated species.