The 5’ end cDNA fragment(ER1’) of early responsive gene(ER1) of rice(Oryza sativa L. subsp. japonica No.4) induced by blast fungus M. grisea has been isolated and sequenced (606 bp) by 5’RACE technique(Fig. 2). DNA sequence analysis showed that ER1’ (606 bp) can encode 134 amino acids and there are 309 bp nucleotides located at the 3’ end of the untranslated region of mRNA of ER1 gene(Fig. 3). The 89 bp overlapping fragment was found between the 5’ end of ER1 cDNA fragment and the 3’ end of ER1’(Fig. 3). The partial identities of amino acid sequence deduced from ER1’ with an unknown protein(gene accession number AC002409) of Arabidopsis thaliana was 82%(Fig. 4).
