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J Bacteriol. 1972 December; 112(3): 1425-1427
Copyright © 1972 American Society for Microbiology. All Rights Reserved.

Pattern of Replication of a Colicin Factor During the Cell Cycle of Escherichia coli

^a University Institute of Microbiology, Øster Farimagsgade 2 A, DK 1353 Copenhagen K, Denmark

ABSTRACT

The ColBM, trp, lac episome was transferred to a lacZ derivative of Escherichia coli B/r, and the manner of replication of this colicinogenic factor was followed through the cell cycle. The results suggest a pattern of replication not connected with any particular stage in the cell cycle.

¹ Present address: Institute for Medical Cell Research and Genetics, Medical Nobel Institute, Karolinska Institutet, S 10401 Stockholm 60, Sweden.

² Present address: Department of Biology, Bjelorussian University, Minsk 80, U.S.S.R.

³ Present address: Division of Research, National Jewish Hospital and Research Center, Denver, Colo. 80206.