A chloroplast RNA polymerase sigma factor is encoded by a nuclear gene, sigA, in the red alga Cyanidium caldarium RK-1. The encoded protein functions as an... MJ Bibb - 《Journal of Bacteriology》 被引量: 215发表: 2000年 Aromatic amino acids in region 2.3 of Escherichia coli sigma 70 ...
Schuster, W, Brennicke, A (1991) RNA editing in ATPase subunit 6 mRNAs in Oenothera mitochondria, a new termination codon shortens the reading frame by 35 amino acids. FEBS Lett 295: pp. 97-101Stadler PF, Happel R (1992) Correlation structure of the landscape of the graph-bipartitioning-...
1c). Sites of cross-linking at the protein were centered at two phenylalanines (F126 and F160), with a distribution of 1-3 amino acids flanking these positions37. This was confirmed from analysis of the MS/MS spectra in which fragment ions localize the RNA adducts unambiguously on the ...
Amino acid - Nonstandard, Synthesis, Biochemistry: Nonstandard amino acids refer to those amino acids that have been chemically modified after they have been incorporated into a protein (called a “posttranslational modification”) and those amino acids
Any of a large number of compounds that are found in living cells, contain carbon, oxygen, hydrogen, and nitrogen, and join together to form proteins. ♦ About 20 amino acids are needed by animal cells to produce proteins, but only about half, callednonessential amino acids, can be produ...
Amino acids are a crucial, yet basic unit of protein, and they contain an amino group and a carboxylic group. They play an extensive role in gene expression process, which includes an adjustment of protein functions that facilitate messenger RNA (mRNA) translation....
Transfer RNA Covalently Binds Amino Acids and Recognizes Specific Regions of mRNA How does mRNA specify the sequence of amino acids in a protein? Which amino acid is to be incorporated into the protein is specified by a sequence of three nucleotides called a codon. The mRNA triplets do not di...
1. What is the primary fate of excess amino acids in vertebrates? A. Storage in the liver B. Excretion as is C. Oxidation or conversion D. Transformation intolipids E. Immediate use inprotein synthesis Answer: C 2. Where is the major site of amino acid degradation in vertebrates?
Amino acid - Reactions, Structure, Synthesis: Amino acids via their various chemical functionalities (carboxyls, amino, and R groups) can undergo numerous chemical reactions. However, two reactions (peptide bond and cysteine oxidation) are of particular
groups, -COOH. The alpha-amino acids RCH(NH2)COOH (where R is either hydrogen or an organic group) are the component molecules of proteins; some can be synthesized in the body (nonessential amino acids) and others cannot and are thus essential components of the diet (essential amino acids...