Modification-deficient transfer ribonucleic acids from relaxed control Escherichia coli: structures of the major undermodified phenylalanine and leucine transfer RNAs produced during leucine starvation.

Abstract

The structures of the major, chromatographically unique phenylalanine and leucine tRNAs produced during leucine starvation of a relaxed control (rel-) mutant of E. coli have been determined. The results demonstrate that the unique species are modification-deficient forms of the major, normally occurring isoacceptor species. The unique tRNAphe differs from… (More)

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