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. 1971 Dec;68(12):2972-6.
doi: 10.1073/pnas.68.12.2972.

On the similarity between the tRNAs of organelles and prokaryotes

S A Fairfield, W E Barnett

On the similarity between the tRNAs of organelles and prokaryotes

S A Fairfield et al. Proc Natl Acad Sci U S A. 1971 Dec.

Abstract

Fluorescence studies with organelle transfer RNAs separated from their cytoplasmic counterparts revealed that phenylalanine tRNA from Euglena chloroplasts or Neurospora mitochondria does not contain a fluorescent "base Y." In contrast, cytoplasmic phenylalanine tRNA from Euglena and cytoplasmic tRNA from Neurospora were found to contain fluorescent bases. The fluorescence-emission spectra of Neurospora cytoplasmic tRNAs and those of the related ascomycete Saccharomyces cerevisiue were observed to be quite different. The results support the generalization that eukaryotic tRNAs contain a fluorescent base, but indicate that their respective organelle tRNAs do not. They also indicate a striking parallelism between organelle and prokaryotic tRNAs.

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