FIG. 6.

Alignment of amino acid sequences deduced from a bacterial (Escherichia coli; Ec), a cyanobacterial (Synechocystis strain PCC 6803; Sy), and a plant (Adonis aestivalis; Aa) lytB gene or cDNA. Residues identical in a given position for the three sequences are in white text on a black background. Where two of the three are identical, residues are in black text on a grey background. A pound sign (#) below the alignment denotes a position at which the amino acid residues are identical in more than 90% and/or similar in 100% of 22 sequences deduced from lytB homologues for which the complete coding regions are currently available in GenBank (5 April 2000). GenBank accession numbers are as follows: A. aestivalis, AF270978:27-1421; E. coli, AE000113:5618-6568; and Synechocystis strain PCC 6803, D64000:46364-47584.