Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 5 of 5 for “"Type IV secretion systems"”.
-
Development of Chimeric Type Iv Secretion Systems For Transfer of Heterologous Substrates Across The Gram-Negative Cell Envelope
<p>Many bacteria use Type IV Secretion Systems (T4SSs) to aid in pathogenesis by translocating virulence factors across the cell envelope and into eukaryotic cells. These systems are structurally and functionally diverse, but are often compared to the archetypal VirB/VirD4 T4SS of <em>Agrobacterium …
-
Characterization of an exclusion mechanism in an integrative and conjugative element in Bacillus subtilis
… new genetic material that can confer novel phenotypes to bacteria and contribute to their evolution. Conjugation is an important mechanism of horizontal gene transfer that involves the direct transfer of DNA between two cells and is mediated by mobile genetic elements encoding type IV secretion …
-
Characterization of The Role of The Pkm101-Encoded T4Ss Outer Membrane Core Complex In Substrate Transfer, Pilus Biogenesis, and Recipient Cell Contact
<p>The bacterial type IV secretion systems (T4SS) encoded on the <em>Escherichia coli</em> pKM101 and R388 conjugative plasmids and the <em>Agrobacterium tumefaciens</em> <em>virB</em> operon are composed of 12 subunits arranged in an architecturally similar fashion. Structural studies of the T4SS …
-
Characterization of The Agrobacterium Tumefaciens Virb2 Pilin of The Virb/D4 Type Iv Secretion System
… <em>tumefaciens</em> VirB/D4 type IV secretion system (T4SS) delivers oncogenic T-DNA and effector proteins to susceptible plant cells. This leads to the formation of tumors termed Crown Galls. The VirB/D4 T4SS is comprised of 12 subunits (VirB1 to VirB11 and VirD4), which …
-
An exploratory study of Helicobacter suis control strategies
Helicobacter suis is a Gram-negative, spiral-shaped bacterium that colonizes the stomach of the majority of slaughter pigs worldwide. An infection with this microorganism has been associated with erosive and ulcerative lesions in the non-glandular part of the porcine stomach and with chronic …