From one amino acid to another: tRNA-dependent amino acid biosynthesis
نویسندگان
چکیده
منابع مشابه
From one amino acid to another: tRNA-dependent amino acid biosynthesis
Aminoacyl-tRNAs (aa-tRNAs) are the essential substrates for translation. Most aa-tRNAs are formed by direct aminoacylation of tRNA catalyzed by aminoacyl-tRNA synthetases. However, a smaller number of aa-tRNAs (Asn-tRNA, Gln-tRNA, Cys-tRNA and Sec-tRNA) are made by synthesizing the amino acid on the tRNA by first attaching a non-cognate amino acid to the tRNA, which is then converted to the cog...
متن کاملAmino acid modifications on tRNA.
The accurate formation of cognate aminoacyl-transfer RNAs (aa-tRNAs) is essential for the fidelity of translation. Most amino acids are esterified onto their cognate tRNA isoacceptors directly by aa-tRNA synthetases. However, in the case of four amino acids (Gln, Asn, Cys and Sec), aminoacyl-tRNAs are made through indirect pathways in many organisms across all three domains of life. The process...
متن کاملAmino Acid Biosynthesis Inhibiting Herbicides
The identification of herbicide families that act through the inhibition of amino acid biosynthesis has resulted in revolutionary progress in agricultural practices. This review describes three herbicide classes which act through this mode-of-action; including glufosinate (also called phosphinothricin, Liberty, Ignite, or Finale) which inhibits ammonia assimilation, glyphosate (Roundup, Tou...
متن کاملAromatic Amino Acid Biosynthesis 529 Regulation of Aromatic Amino Acid Biosynthesis in Gamma-Proteobacteria
Computational comparative techniques were applied to analysis of the aromatic amino acid regulons in gamma-proteobacteria. This resulted in characterization of the TrpR and TyrR regulons in the genomes of Yersinia pestis, Haemophilus influenzae, Vibrio cholerae and other bacteria and identification of new members of the PhhR regulon in the genome of Pseudomonas aeruginosa. Candidate attenuators...
متن کاملPreliminary Report of NAD+-Dependent Amino Acid Dehydrogenase Producing Bacteria Isolated from Soil
Amino acid dehydrogenases (L-amino acid: oxidoreductase deaminating EC 1.4.1.X) are members of the wider superfamily of oxidoreductases that catalyze the reversible oxidative deamination of an amino acid to its keto acid and ammonia with the concomitant reduction of either NAD+, NADP+ or FAD. These enzymes have been received much attention as biocatalysts for use in biosensors or diagnostic kit...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nucleic Acids Research
سال: 2008
ISSN: 0305-1048,1362-4962
DOI: 10.1093/nar/gkn015