OANA ZAINEA*, V.V. MORARIU*, O. POPESCU**

*Department of Molecular and Biomolecular Physics, National Institute for R&D of Isotopic and Molecular Technology, P.O.Box 700, Cluj-Napoca 5, 400293, Romania
**Faculty of Biology, “Babeş-Bolyai” University, Cluj-Napoca, Romania

Abstract. The cell division coding sequences of Escherichia coli K12, O157:H7 Sakai and O157-H7 EDL933 strains were subject to a simple ranking method in connection to the origin and terminus of replication. These coding sequences were found to be distributed all along the chromosome. Data have a non-random organization. A clear grouping of genes around terminus and origin of replication is plainly observed.

Corresponding author’s e-mail: oanaz@L40.itim cj.ro

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