Fig. 4.

Alignment of the deduced amino acid sequence of P. vulgaris cDNAs PvPIP1;1 (accession no. U97023), PvPIP1;2 (accession no. AY995196) and PvPIP2;1 (accession no. AY995195), and comparison with AtPIP1;1 (accession no. X75881) and AtPIP2;3 (accession no. D13254). Two conserved NPA motifs are in bold. Putative membrane-spanning regions are in bold and italics. Putative phosphorylation sites at Ser117 and Ser280 are in italics, underlined and in bold. Regions recognized by antibodies are underlined. Asterisks indicate conserved sites in all the genes aligned. : and . indicate degree of amino acid similarity among protein sequences.