The study of the biosynthetic pathway leading to synthesis of the amino acid histidine in
prokaryotes and lower eukaryotes was begun more than 40 years ago (119) and has …

The ability to degrade the amino acid histidine to ammonia, glutamate, and a one-carbon
compound (formate or formamide) is a property that is widely distributed among bacteria …

Bacterial Physiology and Metabolism focuses on research on bacteria, as well as
metabolism of carbohydrates, fermentation, and oxidation of acids. The book first offers …

A class of mutations that increase the efficiency of a suppressor tRNA in translating a
particular amber codon has been characterized. The increased efficiency is due to a …

The universal genetic code includes three codons which signal polypeptide chain
termination. These termination or nonsense codons are UAG (amber), UAA (ochre), and …

Modified nucleosides, which are derivatives of the four normal nucleosides, adenosine (A),
guanosine (G), cytidine (C), and uridine (U), were found in nucleic acids as early as 1948 …

The biosynthesis of histidine in Escherichia coli and Salmonella typhimurium has been an
important model system for the study of relationships between the flow of intermediates …

抄録< jats: p> A method is described for isolating mutants of< jats: italic> Saccharomyces
cerevisiae</jats: italic> which have lost repressibility by exogenous arginine for ornithine …

Other investigators have shown that several polycyclic carcinogens are frameshift mutagens
in Salmonella. Mutagenic potency of these compounds is assessed by ability to induce …

A model is proposed that accounts for regulation of the histidine operon by a mechanism
involving alternative configuration of mRNA secondary structure (the alternative stem …