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PubMed1969

Ribosomal ribonucleic acid maturation during bacterial spore germination.

All the ribosomal ribonucleic acid made during the early stages of germination of spores of Bacillus subtilis is of the "precursor" type, i.e., that type appearing in the incomplete forms of the ribosome. Shortly before the onset of deoxyribonucleic acid synthesis in germination, this precursor ribonucleic acid changed to the mature ribosomal ribonucleic acid characteristic of the 30S and 50S ribosomal subunits.

Bacillus subtilis↗
PubMed1969

Enzymatic phosphorylation of streptomycin by extracts of streptomycin-producing strains of Streptomyces.

Extracts of post-exponential phase mycelia of Streptomyces bikiniensis ATCC 11062, and other streptomycin-producers, catalyze phosphorylation of streptomycin and dihydrostreptomycin with adenosine-5'-triphosphate. The phosphate is esterified with an -OH group of the streptidine moiety. It is suggested that O-phosphoryl-streptomycin might serve as an intracellular precursor of extracellular streptomycin or as a detoxification product of streptomycin or that it might serve an unknown physiological function in the producing organism.

Adenosine Triphosphate↗