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Fig. 1. Primary structure of the urea transporter (UT) isolated from the kidney of
Triakis scyllia. The deduced amino acid sequence is aligned with
those of the Squalus acanthias UT (accession number AF257331), rat
UT-A2 (U09957) and rat UT-B2 (U81518) using the Clustal algorithm. Amino acid
residues identical to the Triakis UT are indicated in black. A
putative N-glycosylation site and polypeptides used as antigens to
generate antibodies are indicated with horizontal bars.