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J. Bacteriol., Nov 1995, 6492-6498, Vol 177, No. 22
A Lezhava, T Mizukami, T Kajitani, D Kameoka, M Redenbach, H Shinkawa, O Nimi and H Kinashi
The chromosomal DNA of Streptomyces griseus 2247 (a derivative of strain
IFO3237) was digested with several restriction endonucleases and analyzed
by pulsed-field gel electrophoresis (PFGE). Digestion with AseI and DraI
gave 15 and 9 fragments, respectively, the total sizes of which were 7.8
Mb. All the AseI and DraI fragments were aligned on a linear chromosome map
by using linking plasmids and cosmids. PFGE analysis of the intact
chromosome also showed a linear DNA band of about 8 Mb. Detailed physical
maps of both terminal regions were constructed; they revealed the presence
of a 24-kb terminal inverted repeat on each end. PFGE analysis with and
without proteinase K treatment suggested that each end of the chromosome
carries a protein molecule.
Copyright © 1995, American Society for Microbiology
Physical map of the linear chromosome of Streptomyces griseus
Department of Fermentation Technology, Faculty of Engineering, Hiroshima University, Japan.
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