
Phylogenetic analysis of vertebrate Na,K-ATPase α subunits. Consensus tree generated using the distance matrix method is shown atleft with the scale of evolutionary distances below. Consensus tree generated using maximum parsimony method is at right. Numbers at each branch point indicate percent support from bootstrap analysis. Na,K-ATPase α subunit sequences were obtained from SwissProt or GenBank: rat α1 (atn_rat), α2 (atn2_rat), α3 (atn3_rat), and α4 (AAB81285); chicken α1 (atn1_chick), α2 (atn2_chick), and α3 (atn3_chick); sheep α1 (atn1_sheep); Bufo marinus α1 (atn1_bufma); Xenopus laevis α1 (atn1_xenla); European eel α1 (atna_angan); Tilipia mossambica α1(AAD11455) and α3 (AAF75108); mullet α1 (atna_catco); Torpedo californica α1 (atna_torca).Electrophorus electricus α subunit sequence is from Kaya et al. (1997).











