Takeshi Itoh (firstname.lastname@example.org)
Minoru Yano (email@example.com)
Keiko Takemoto (firstname.lastname@example.org)
Miwako Kajihara (email@example.com)
Hirotada Mori (firstname.lastname@example.org)
 Research and Education Center for Genetic Information,
Nara Institute of Science and Technology
8916-5 Takayama, Ikoma, Nara 630-01, Japan
 Institute for Virus Research, Kyoto Univ.
Syougoin-Kawahara, Sakyo, Kyoto 606-01, Japan
At present, the non redundant contig sequences of E.coli which covers about 70% of the whole chromosome are constructed. We predicted ORF's (Open Reading Frames) from 2,554,518 bp contig sequences on the basis of Shine-Dalgarno (ribosome binding) sequence. All ORF's were classified according to the structural similarities. Through examining the homology of ORF's in each group in detail, some structural units were revealed.