Polar lipids from the radiation resistant bacterium Deinococcus radiodurans: structural investigations on glucosaminyl and N-acetyl glucosaminyl lipids.

Deinococcus radiodurans, although a gram-positive bacterium, has a complex cell wall with multiple layers and associates to this structural particularity, a quite unusual lipid composition for gram-positive bacteria. The conventional phospholipids (phosphatidyl ethanolamine, phosphatidyl choline, phosphatidyl glycerol..

[Lipids and lipopolysaccharides of "Micrococcus radiodurans" (author's transl)].

Studies were carried out on lipid composition of Micrococcus radiodurans. The polar lipid components were found to be 4 glycolipids, 3 phospholipids and 2 phosphoglycolipids. The major fraction belongs to the last group.

[Lipid-protein interactions in blood serum].

The lipoprotein-fatty acid complexes show an electrophoretic mobility greater than that lipoproteins alone, but that phenomenon does not appear when those complexes have previously incubates for two days at 37 degrees C: an hypothesis on the evolution in time of the patterns of interaction binding lipoproteins and fatty acids has been confirmed by studies in isoelectric focusing.