Amino acid sequence alignment of three new zinnia expansins. The deduced amino acid sequence alignments for zinnia expansins are compared with the Arabidopsis expansin 1 (AtExp1) using the CLUSTAL W algorithm (Thompson et al., 1994). Identical amino acids are marked with asterisks. Dashes represent gaps that were used to facilitate alignment. Eight Cys residues (+) and four Trp residues (♦) conserved among expansins are indicated. Putative signal peptides are shown in lowercase. Accession numbers for ZeExp1, ZeExp2, and ZeExp3 are AF230331, AF230332, and AF230333, respectively.