Some Unique Properties of the Deoxyribonucleic Acid-Bearing Portion of the Bacterial Membrane

Author:

Ballesta J. P.1,Cundliffe E.1,Daniels M. J.1,Silverstein Judith L.1,Susskind Miriam M.1,Schaechter M.1

Affiliation:

1. Department of Molecular Biology and Microbiology, Tufts University School of Medicine, Boston, Massachusetts 02111, and Department of Biochemistry, Oxford University, Oxford, OX1 3QU, England

Abstract

By using the M-band technique we have shown that portions of the membranes of Bacillus megaterium and Escherichia coli vary in their affinity for magnesium-Sarkosyl crystals and in phospholipid composition. The portion to which deoxyribonucleic acid is attached comprises as little as 4% of the total cell membrane, has a particularly high degree of affinity for magnesium-Sarkosyl crystals, and is rich in phosphatidylethanolamine. The M-band fractionation does not depend on the use of lysozyme.

Publisher

American Society for Microbiology

Subject

Molecular Biology,Microbiology

Reference14 articles.

1. Effect of shiftdown and growth inhibition on phospholipid metabolism of Escherichia coli;Ballesta J. P.;J. Bacteriol.,1971

2. Intracellular distribution of ribosomes and polyribosomes in Bacillus megaterium;Cundliffe E.;J. Mol. Biol.,1970

3. Some features of the bacterial membrane studied with the aid of new fractionation technique;Daniels M. J.;Biochem. J.,1971

4. A hydrolytic procedure for the identification and estimation of individual phospholipids in biological samples;Dawson R. M.;Arch. Biochem. Biophys.,1960

5. DNA replication studied by a new method for the isolation of cell membrane-DNA complexes;Earhart C. F.;Cold Spring Harbor Symp. Quant. Biol.,1968

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