Rhyme or reason: RNA-arginine interactions and the genetic code

Rhyme or reason: RNA-arginine interactions and the genetic code.

Theories about the origin of the genetic code require specific recognition between nucleic acids and amino acids at some stage of the code's evolution. A statistical analysis of arginine-binding RNA aptamers now offers the opportunity to test such interactions and provides the strongest support for an intrinsic affinity between any amino acid and its codons.

The RNA world, the genetic code and the tRNA molecule.

Rhyme and reason: the role of circadian rhythms in skin and its implications for physicians

The study of the day and night cycle and its effects on the human body has been a field of interest for many decades. In more recent years, the effects of these diurnal variations have been looked into with respect to human skin. To encourage future medical interest in this subject as well as to discuss the futuristic concept of transdermal drug delivery incorpo­ rating the effects of circadian...

Translation of RNA: The Genetic Code and Protein Metabolism

352 12.1 The Process of Protein Synthesis Characteristics of Translation 12.2 The Three Stages of Protein Synthesis Initiation, Elongation, and Termination Polyribosomes Protein Synthesis and Energy Inhibition of Protein Synthesis by Antibiotics 12.4 Regulation of Protein Synthesis and Gene Expression Principles of Regulating Gene Expression Three Classes of Regulatory Proteins Examples of Gene...

Transfer RNA: From minihelix to genetic code

The amino acid-trinucleotide relationships of the genetic code have long prompted interest in finding a historical rationale for why particular nucleotide triplets correspond to specific amino acids. Efforts to find stereochemical complementarity between a particular amino acid side chain and a specific triplet have been largely unsuccessful, as have been attempts to demonstrate specific amino ...