Sökning: "bacterial proteins"

Visar resultat 1 - 5 av 540 avhandlingar innehållade orden bacterial proteins.

1. 1. The Ins and Outs of Membrane Proteins : Topology Studies of Bacterial Membrane Proteins

   Författare :Mikaela Rapp; Gunnar von Heijne; Christopher Tate; Stockholms universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; membrane protein; topology; dual topology; Biochemistry; Biokemi;

   Sammanfattning : α-helical membrane proteins comprise about a quarter of all proteins in a cell and carry out a wide variety of essential cellular functions. This thesis is focused on topology analyses of bacterial membrane proteins. The topology describes the two-dimensional structural arrangement of a protein relative to the membrane. LÄS MER

3. 2. NMR Studies of Bacterial Albumin-Binding Modules

   Författare :Maria U Johansson; Biofysikalisk kemi; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fysikalisk kemi; Biotechnology; Bioteknik; Proteins; enzymology; Proteiner; enzymologi; Physical chemistry; three-helix bundle; protein structure; protein PAB; protein-protein interactions; protein G; protein dynamics; NMR; module shuffling; GA module; evolution; albumin-binding; bacterial surface proteins;

   Sammanfattning : Peptostreptococcus magnus and group C/G streptococci are Gram-positive cocci that are part of the normal flora and reside in more or less the same locations in the host. Protein G of group C/G streptococci was originally described as binding IgGFc of several species and later shown to also bind human serum albumin and albumins from various animal species. LÄS MER

4. 3. Removal and Replacement of Ribosomal Proteins : Effects on Bacterial Fitness and Ribosome Function

   Författare :Christina Tobin; Dan I. Andersson; Richard Buckingham; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; ribosome; protein synthesis; ribosomal proteins; translation initiation; ribosome biogenesis; fitness costs; compensatory evolution; horizontal gene transfer; Microbiology; Mikrobiologi; Biochemistry; Biokemi; Mikrobiologi; Microbiology;

   Sammanfattning : Protein synthesis is a complex process performed by sophisticated cellular particles known as ribosomes. Although RNA constitutes the major structural and functional component, ribosomes from all kingdoms contain an extensive array of proteins with largely undefined functional roles. LÄS MER

5. 4. Peptidoglycan Recognition Proteins : Major Regulators of Drosophila Immunity

   Författare :Peter Mellroth; Håkan Steiner; Julien Royet; Stockholms universitet; []
   Nyckelord :LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; Innate immunity; peptidoglycan recognition protein; PGRP; Toll; Imd; Drosophila immunity; Microbiology and immunology; Mikrobiologi och immunologi;

   Sammanfattning : All eukaryotic organisms have an innate immune system characterized by germ-line encoded receptors and effector molecules, which mediate detection and clearance of microbes such as bacteria, fungi, and parasites. VertebrateDrosophila as a genetically tractable organism with a This thesis concerns the peptidoglycan recognition protein (PGRP) gene family in the fruit fly. LÄS MER

7. 5. PII proteins as global regulators of bacterial nitrogen metabolism

   Författare :Pedro Filipe Teixeira; Stefan Nordlund; Ray Dixon; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Rhodospirillum rubrum; nitrogen metabolism; signal transduction; PII proteins; Biochemistry; Biokemi; Biochemistry; biokemi;

   Sammanfattning : Nitrogen is an essential element to sustain life, being a component of most biological macromolecules. In spite of the abundance of gaseous N2, the availability of nitrogen compounds that can be readily used by most microorganisms is scarce and its production energetically demanding. LÄS MER