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. 1972 Oct;112(1):195-9.
doi: 10.1128/jb.112.1.195-199.1972.

Some unique properties of the deoxyribonucleic acid-bearing portion of the bacterial membrane

Some unique properties of the deoxyribonucleic acid-bearing portion of the bacterial membrane

J P Ballesta et al. J Bacteriol. 1972 Oct.

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.

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