Sökning: "post modification"

Visar resultat 1 - 5 av 173 avhandlingar innehållade orden post modification.

  1. 1. Ribosomal RNA Modification Enzymes : Structural and functional studies of two methyltransferases for 23S rRNA modification in Escherichia coli

    Författare :Avinash S. Punekar; Maria Selmer; Martino Bolognesi; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Escherichia coli; ribosome biogenesis; ribosome assembly; ribosomal RNA; peptidyltransferase center; domain V; post-transcriptional modification; methyltransferases; S-adenosyl-methionine; RlmM; Cm2498; RlmJ; m6A2030; X-ray crystallography; substrate recognition; substrate specificity; catalytic mechanism; evolution; Biology with specialization in Structural Biology; Biologi med inriktning mot strukturbiologi; Biokemi; Biochemistry;

    Sammanfattning : Escherichia coli ribosomal RNA (rRNA) is post-transcriptionally modified by site-specific enzymes. The role of most modifications is not known and little is known about how these enzymes recognize their target substrates. LÄS MER

  3. 2. Studier kring 36 § avtalslagen med inriktning på rent kommersiella förhållanden

    Författare :Claes-Robert von Post; Lars Gorton; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; LAW JURISPRUDENCE; RÄTTSVETENSKAP JURIDIK; Legal Science; rättsvetenskap;

    Sammanfattning : In 1976 the Swedish Contracts Act was amended by the introduction of a new, so called 'general clause' stipulating provisions concerning modification and settings aside of contract terms. The provisions are applied in the first place when a contract term is found unreasonable. LÄS MER

  4. 3. Study of the colonic mucus layer by mass spectrometry

    Författare :Sjoerd van der Post; Göteborgs universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MUC2; mucin; intestine; proteomics; mass spectrometry;

    Sammanfattning : The mucus covering our internal mucosal surfaces is a part of the innate immune system, and the first line of defense against microbial challenges. The need of an efficient defense system is especially important in the lower parts of the digestive tract where the microbiota reaches its highest density. LÄS MER

  5. 4. Modification of zeolites and synthesis of SAPO-templated carbon

    Författare :Yunxiang Li; Niklas Hedin; Anders Palmqvist; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; microporous material; zeolite; SAPO templated carbon; hydrothermal synthesis; CVD; post modification; direct modification; snowflake; Materials Chemistry; materialkemi;

    Sammanfattning : Zeolites are crystalline aluminosilicates with diverse structures and uniform porosities. They are widely used as catalysts, adsorbents and ion-exchangers in industry. Direct or post modifications optimize the performance of zeolites for different applications. In this thesis, IZM-2 and TON-type zeolites were synthesized, modified and studied. LÄS MER

  7. 5. Structured molecular sieves : synthesis, modification and characterization

    Författare :Valeri Naydenov; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Chemical Technology; Kemisk teknologi;

    Sammanfattning : The work presented concerns synthesis of structured molecular sieves. The preparation procedure is based on the use of ion exchange resins as macrotemplates. Macroporous cation or anion exchange resin types were used depending on the molecular sieve type to be synthesized. LÄS MER