Figure 1.

Esi47 encodes a protein Ser/Thr kinase-like protein. The amino acid sequence is deduced from the nucleotide sequence of the Esi47 cDNA (GenBank accession no. AF131222). The catalytic domain is underlined. The amino acid residues conserved in all protein Ser/Thr kinases and protein Tyr kinases (Hanks and Quinn, 1991) are shown in bold letters; the positions at which the Esi47 gene product has an amino acid residue other than the one conserved in protein Tyr kinases (Hanks and Quinn, 1991) are highlighted.