Yarus, M Amino acids as RNA ligands: a direct-RNA-template theory for the code's origin. [electronic resource] - Journal of molecular evolution Jul 1998 - 109-17 p. digital Publication Type: Journal Article; Research Support, U.S. Gov't, P.H.S. ISSN: 0022-2844 Standard No.: 10.1007/pl00006357 doi Subjects--Topical Terms: Amino Acids--metabolismArginine--geneticsBinding SitesEvolution, MolecularGenetic CodeLigandsModels, GeneticNucleic Acid ConformationPeptide Biosynthesis--geneticsRNA--chemistryRNA, Protozoan--genetics