Rodin, Andrei S One ancestor for two codes viewed from the perspective of two complementary modes of tRNA aminoacylation. [electronic resource] - Biology direct Jan 2009 - 4 p. digital Publication Type: Journal Article; Research Support, Non-U.S. Gov't ISSN: 1745-6150 Standard No.: 10.1186/1745-6150-4-4 doi Subjects--Topical Terms: Amino Acid SequenceAmino Acids--chemistryBase SequenceComputational BiologyEvolution, MolecularGenetic Code--geneticsModels, GeneticNucleic Acid ConformationRNA, Transfer--chemistryTransfer RNA Aminoacylation--genetics