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Fig. 1. Alignments of amino acid sequences of aquaporin 1 isoforms (A) and
aquaporin 5 isoforms (B) in mammals and birds with the partial duck sequences
obtained in this study. Amino acids with a black background are conserved in
all species, black letters on a grey background indicate amino acids that are
different in mammals and birds, white letters on grey background indicate N-
and C-terminal portions of sequence in mammals and birds which have not been
determined in ducks. GenBank accession numbers for AQP1: chicken, NM001039453;
quail, AY692368; rat, NM_012778; mouse, NM_007472; human, BC022486. Accession
numbers for AQP5: chicken, AJ829443; rat, U16245; mouse, NM_009701; human,
NM_001651.