Phage T4 polynucleotide kinase/phosphatase (Pnkp) and RNA ligase 1 (Rnl1) are prototypal RNA healing and sealing enzymes. They function in vivo to repair a break in E. coli tRNA Lys triggered by phage ...

For example, when A and C were mixed with polynucleotide phosphorylase, the resulting RNA molecules contained eight different triplet codons: AAA, AAC, ACC, ACA, CAA, CCA, CAC, and CCC.

For instance, he was the first to discover the order of the three major components of a single nucleotide (phosphate-sugar-base); the first to discover the carbohydrate component of RNA (ribose ...