On the biological significance of modified nucleosides in tRNA.

Adenosine/analogs & derivatives Animals Bacterial Physiological Phenomena Base Sequence Binding Sites Biological Evolution Cell Differentiation Cell Transformation, Neoplastic Codon Guanine/analogs & derivatives,physiology Isopentenyladenosine/physiology Operon Peptide Chain Elongation, Translational Peptide Chain Initiation, Translational Protein Biosynthesis RNA, Transfer/physiology Ribosomes/metabolism Spores, Bacterial Uridine/analogs & derivatives,physiology

Codon ribothymidine Guanine queuine Isopentenyladenosine RNA, Transfer Adenosine Uridine