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. 2018 Feb 28;9:319. doi: 10.3389/fmicb.2018.00319

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Copyright © 2018 Hansen and Atlung.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The dnaA region of the E. coli chromosome. 26,332 bp between the outmost EcoRI sites is the chromosomal DNA present on two λtna phages (λtna 552 and λ tna 530). The drawing is based on the published complete E. coli sequence version (acc.no. U00096.2). The genes (proteins) stained green are those that could be identified on SDS-polyacrylamide gels. The light gray proteins and the dark gray protein encoded by the tnaA gene were not visible (Hansen and von Meyenburg, 1979; Ream et al., 1980).