Comparison in the amino acid sequence between BTBD10 and KCTD20 and KCTD20 expression in mouse tissues. A, Amino acid sequences of human BTBD10 and human KCTD20 were aligned by ClustalW. Identical residues are shown by red characters while residues that are strongly similar or weakly similar are shown by green or blue characters, respectively. A dash (-) means the gap. B, Mouse tissue lysates were subjected to SDS-PAGE, followed by immunoblot analysis using anti-KCTD20 antibody (upper panel) or anti-GAPDH antibody (lower panel).