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A novel highly unsaturated fatty acid moiety of lipo-oligosaccharide signals determines host specificity of Rhizobium
In Rhizobium leguminosarum biovar viciae, the nodABCand nodFEL operons are involved in the production of lipo-oligosaccharide signals which mediate host specificity and links the nodE and nodi genes to specific chemical features of the signal molecules. Expand
The function of cytidine coenzymes in the biosynthesis of phospholipides.
The ratio of P32 to Cl4 in the product was closely similar to that of the labeled P-choline, suggesting incorporation of both phosphorus and choline as an intact unit into a phospholipide, presumably lecithin. Expand
Magnesium transport in Escherichia coli. Inhibition by cobaltous ion.
It appears likely that Co++ is transported into cells of E. coli by the same system responsible for Mg++ transport, however, this transport requires a much higher concentration of Co++ than is normally found in growth media, and the transport system described here may not be responsible for the uptake ofCo++ present in very low concentrations during normal growth. Expand
Osmotic regulation and the biosynthesis of membrane-derived oligosaccharides in Escherichia coli.
- E. P. Kennedy
- Biology, Medicine
- Proceedings of the National Academy of Sciences…
- 1 February 1982
The membrane-derived oligosaccharides (MDO) of Escherichia coli are periplasmic constituents containing 8-10 glucose units in a highly branched structure, linked by beta 1-2 and beta 1-6 bonds… Expand
Osmotic adaptation by gram-negative bacteria: possible role for periplasmic oligosaccharides.
A general role for periplasmic oligosaccharides in the osmotic adaptation of Gram-negative bacteria as ecologically diverse as enteric and soil bacteria is suggested. Expand
The enzymatic phosphorylation of proteins.
UTP: alpha-D-glucose-1-phosphate uridylyltransferase of Escherichia coli: isolation and DNA sequence of the galU gene and purification of the enzyme
The galU gene of Escherichia coli, thought to encode the enzyme UTP:alpha-D-glucose-1-phosphate uridylyltransferase, was mapped to the 27-min region of the chromosome and the nucleotide sequences of five galU mutations were determined. Expand
The enzymatic synthesis of inositol monophosphatide.
It is found that free inositol may be incorporated into lipid as a result of an enzymatic exchange reaction with inositl phosphatide present in the enzyme preparation. Expand