Comparison between the N-terminal sequences deduced from different plant ICDH-encoding cDNAs. pST5 (this work, X96728), tobacco (3), potato (15), alfalfa (13), soybean (14), and Eucalyptus (U80912). With respect to the pST5 sequence, identical residues are replaced by hyphens although different amino acids are shown. ⇓ indicates the amino acid changed to the “start” methionine in pGFP5. The 38 amino acids of the putative mature protein situated between ▿ and ⇓ were placed in front of the GFP.