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Spontaneous mutants of the bacteriophage fd and mutants resulting from fd-infected cultures of E. coli grown in the presence of 2.7-diaminofluoren and proflavin were isolated by means of free flow electrophoresis.The amino acid analyses of the mutant coat proteins (B-proteins) show significant differences in comparison with the amino acid analyses of wild type coat protein.
Several glycolipid fractions have been isolated from the bound lipids of N. brasiliensis. The main fraction was characterized as a monoester of nocardomycolic acids and D-arabinose. Fractionation of the free lipids yielded a glycolipid fraction consisting of nocardomycouc acids, arabinose, galactose and several amino acids. This last fraction appears to be similar to wax D of Mycobacteria; mild acid...
The incorporations of 2,3- 14 C-succinate 2- 14 C-acetate into fatty acids of different cellular fractions of rat liver were studied. Acetate was incorporated mainly into supernatant and succinate into microsomal fatty acids. Mitochondria only could intensively decarboxylate pyruvate. Avidine inhibited fatty acid synthesis from succinate mainly in the supernatant. It is suggested...
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