Ribonucleic acid synthesis by Escherichia coli C3000/L after infection by the ribonucleic acid coliphage ZIK/1, and properties of coliphage-ZIK/1 ribonucleic acid.

The metabolism of ribonucleic acid in normal and bacteriophage infected Escherichia coli.

Cohen (1948a) has reported that during the multiplication of the bacteriophages T2r+ and T4r+ in Escherichia coli, strain B, the ribonucleic acid content of the host remains constant. Similar observations were made by Kozloff et al. (1951) who investigated the origin of the nitrogen of T6r+ multiplying in the same host. Cohen (1948b) also examined the possibility that the ribonucleic acid was u...

Deoxyribonucleic acid-ribonucleic acid hybridization studies on the L-Arabinose operon of Escherichia coli B-r.

An increase in the rate of synthesis of ara-specific messenger ribonucleic acid as measured by deoxyribonucleic acid-ribonucleic acid hybridization has been detected in the induced wild-type (ara(+)) strain of Escherichia coli B/r as compared with the uninduced control, thus providing evidence that regulation of the positively controlled l-arabinose operon is at the level of transcription.

The role of deoxyribonucleic acid in ribonucleic acid synthesis. I. The purification and properties of ribonucleic acid polymerase.

It has become evident that several enzymatic reactions exist which lead to the incorporation of the mononucleotide moiety of the ribonucleoside triphosphates into ribonucleic acid (1). The first of these enzymes to be characterized catalyzes the addition of cytosine 5’-phosphate and adenosine 5’-phosphate to the nucleoside terminal end of soluble ribonucleic acid (2,3). The product of this reac...

Factors affecting virulence of Shigella flexneri: strain with relaxed control of ribonucleic acid synthesis.

An Escherichia coli-Shigella flexneri hybrid strain which produces an abortive, nonfatal experimental dysentery has inherited relaxed control of ribonucleic acid synthesis from its E. coli parent. This property, coupled with a partial methionine requirement, has been used to explain its long lag phase in vitro, relative to its Shigella parent. It was suggested that such characteristics may cont...

Indirect evidence for the presence of Ribonucleic acid in vesicular stomatitis Virions