Figure 3.

Esi47 and its Arabidopsis homologous gene F8A24.12 are similar in gene structure. The genomic DNA sequences corresponding to the 5′-UTRs of the two genes are shown. The bold letters indicate mRNA transcript region sequences confirmed by cDNA clones or the primer extension result. The transcription initiation site for Esi47 determined by primer extension is indicated by the arrow. The 5′-UTR introns are shown in lowercase letters. The uORFs are underlined and the peptides they might encode are shown in italic letters below. The amino terminal amino acid sequences encoded by the major protein kinase ORFs are also shown. The first nucleotide of the kinase coding regions are designated positions +1. The GenBank accession numbers are AF339747 (Esi47 genomic sequence), AC015985 (F8A24.12 genomic sequence), and AI993614 (cDNA sequence for F8A24.12 derived from the EST clone 701496785).