“…NcTb␣3, -␣5, and -␣6) or contained an artifactual internal deletion (NcTb␣1). NcTb␣7, -␣2, and -␣8 are encoded by a tightly linked cluster of three ␣-tubulin genes, NcGTb␣a (A), NcGTb␣b (B), and NcGTb␣c (C) (14). The vertebrate ␣-tubulin consensus (Con␣Tb) was established using isotypes from chicken (chains ␣3-␣5, ␣8; GenBank TM / Swiss-Prot accession numbers P09642-P09645), human (␣1, ␣4; P04687, P05215), mouse (␣1-␣3, ␣6; P02551, P05213, P05214, P05216), pig (␣-chain, P02550), Chinese hamster ovary cells (␣1, P05209), Xenopus laevis (␣-chain, P08537), three salmonid fishes (Oncorhynchus mykiss testis-specific ␣, P18288; O. keta ␣, P30436; Notophthalmus viridescens ␣, Q91060), and the electric ray (Torpedo marmorata ␣T6, P36220).…”