Some unique properties of the deoxyribonucleic acid-bearing portion of the bacterial membrane
- PMID: 4627921
- PMCID: PMC251396
- DOI: 10.1128/jb.112.1.195-199.1972
Some unique properties of the deoxyribonucleic acid-bearing portion of the bacterial membrane
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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