Sökning: "misreading"

Hittade 3 avhandlingar innehållade ordet misreading.

  1. 1. Accuracy of mRNA Translation in Bacterial Protein Synthesis

    Författare :Jingji Zhang; Måns Ehrenberg; Olke C. Uhlenbeck; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; protein synthesis; genetic code; misreading; error hot spots; kinetics; aminoglycoside; Biokemi; Biochemistry;

    Sammanfattning : Reading of messenger RNA (mRNA) by aminoacyl-tRNAs (aa-tRNAs) on the ribosomes in the bacterial cell occurs with high accuracy. It follows from the physical chemistry of enzymatic reactions that there must be a trade-off between rate and accuracy of initial tRNA selection in protein synthesis: when the current accuracy, the A-value, approaches its maximal possible value, the d-value, the kinetic efficiency of the reaction approaches zero. LÄS MER

  3. 2. Computational Studies of Protein Synthesis on the Ribosome and Ligand Binding to Riboswitches

    Författare :Christoffer Lind; Johan Åqvist; Alexander MacKerell Jr; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Binding free energy; Ribosome; Codon reading; Translation initiation; Translation termination; Mitochondrial translation; Release factor; Purine riboswitch; Molecular Dynamics; Free Energy Perturbation; Biology with specialization in Molecular Biotechnology; Biologi med inriktning mot molekylär bioteknik;

    Sammanfattning : The ribosome is a macromolecular machine that produces proteins in all kingdoms of life. The proteins, in turn, control the biochemical processes within the cell. It is thus of extreme importance that the machine that makes the proteins works with high precision. LÄS MER

  4. 3. Translational termination, frameshift and ribosome assembly

    Författare :Monica Rydén Aulin; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : The aim of this thesis was to study components involved in translational termination. Most of the work is centered around this, but the outcome of some of the experiments, led me onto other paths too.Firstly, isolation of a mutant which was shown to be in release factor one, was mapped to min 26,5 on the Escherichia coli chromosome. LÄS MER