Fusion protein amino acids 208-427 (C-terminus) of mouse Arl13b (also known as ADP-ribosylation factor-like protein 13B, ADP-ribosylation factor-like protein 2-like 1, ARL2-like protein 1 and Arl2l1, accession number Q640N2)Rat: 85% identity (189/220 amino acids identical)Human: 68% identity (154/224 amino acids identical)<40% identity with Arl13a