Bibliothek

feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
  • 1
    Digitale Medien
    Digitale Medien
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 21 (1982), S. 23-36 
    ISSN: 0570-0833
    Schlagwort(e): Ribosomes ; Enzymes ; Protein biosynthesis ; Chemistry ; General Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: Ribosome-dependent protein synthesis in bacteria represents a complex sequence of reactions involving more than 150 compounds. The ribosome, constructed from 53 individual proteins and 3 nucleic acids, functions as the enzyme which catalyzes peptide bond formation. In contrast to most known enzymes the ribosome is “programmed” by the mRNA-the short-lived transcript of DNA. The ribosome reads the nucleotide message of the mRNA and transforms its information into the amino acid sequence of a protein. In the course of this process, chemical bond energy is converted into directed mechanical motion. The model of protein biosynthesis on the programmable ribosome provides answers to the following questions: how is the mRNA framed into information units, how is the substrate specificity of the ribosome modulated by the codon of the mRNA, and how does the mRNA move with respect to the ribosome by one trinucleotide per peptide bond formed?
    Zusätzliches Material: 15 Ill.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 2
    Digitale Medien
    Digitale Medien
    Weinheim : Wiley-Blackwell
    Angewandte Chemie International Edition in English 36 (1997), S. 24-41 
    ISSN: 0570-0833
    Schlagwort(e): enzyme catalysis leukotrienes ; mercapturic acid pathway ; metabolism ; xenobiotics ; Enzyme catalysis ; Leukotrienes ; Mercapturic acid pathway ; Metabolism ; Xenobiotics ; Chemistry ; General Chemistry
    Quelle: Wiley InterScience Backfile Collection 1832-2000
    Thema: Chemie und Pharmazie
    Notizen: The blood-brain barrier is an anatomical constraint that maintains homeostasis within the brain and consists of uniquely structured brain capillaries. In addition to these morphological features, a number of specific proteins and transport systems (which are relevant to pharmaceutical applications) can be described that complement barrier functions and ensure a selective supply of substances from the blood to the brain. The additional role of the blood-brain barrier as a site of active detoxication by metabolizing and thus defending against neurotoxic substances has only become apparent in the past few years. Fundamental to understanding these processes are the principles of detoxication reactions and metabolic pathways of excretory organs, which will be described briefly here. The confirmation of these mechanisms in the brain enhances understanding of the complex protective functions of the blood-brain barrier. Evidently, these detoxication pathways simultaneously produce metabolites with neurotoxic or, in case of leukotriene, blood-brain barrier damaging potential. Finally, a detailed description of the mercapturic acid pathway of detoxication will be used to illustrate how evidence of representative enzymes can be used to distinguish definite functions of particular cell types and marker proteins of the blood-brain barrier.
    Zusätzliches Material: 7 Ill.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
    BibTip Andere fanden auch interessant ...
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...