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National Repository of Grey Literature 12 records found  previous11 - 12  jump to record: Search took 0.00 seconds. 
How Intracellular Pathogens Manipulate Cellular Trafficking.
 Petrů, Markéta ; Doležal, Pavel (advisor) ; Pyrih, Jan (referee)
Many intracellular single-celled organisms belong to medically important human pathogens. The selected parasites are subject of this thesis - Chlamydia spp., Legionella pneumophila, Trypanosoma cruzi and Toxoplasma gondii - as well as their interactions with the vesicular transport of the host cell. Basic pathways of vesicular transport are delineated and important participating molecules described. Furthermore, the effector proteins of pathogens that interact with these molecules are included. The special chapter is devoted to phenomenon of mimetics of SNARE proteins by bacteria. The manuscript concludes with a chapter on LpSNARE of Legionella pneumophila, which was found in our laboratory and which is a topic of my experimental work herein.
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Functional analysis of syntaxin 16 phosphorylation using yeast as a model
 Volfová, Barbora ; Entlicher, Gustav (advisor) ; Dráber, Petr (referee)
4 Abstract Mechanism of fusion of intracellular membranes in eukaryotic cells involves several protein families including soluble N-ethylmaleimide-sensitive-factor attachment protein receptor (SNARE) proteins and Sec1/Munc-18 related proteins (SM proteins). It is known that the transport is evolutionary conserved from yeast to man. Therefore for facilitating of the research, we can use simple eukaryotes Saccharomyces cerevisiae. Mammalian SNARE protein syntaxin 16 has a yeast homologue Tlg2p which is used in this study as a model for studying affects of phosphorylation to the syntaxin 16 function. Also their binding partners, SM proteins mVps45p (mammalian) and yeast Vps45p are homologous. Phosphorylation of SNARE proteins is known as a possible way of regulation of membrane fusion. Abolishment of one of the putative phosphorylation sites in Tlg2p protein, serine 90 leads to dominant effects on the exocytic and endocytic pathways. The work presented in this study shows some phenotypes of mutants based on this phosphorylation site of protein Tlg2p. Those mutants are S90A (cannot be phosphorylated) and S90D (phosphomimetic - acid carboxyl group mimics phosphate group). It was revealed that the phosphorylation of Tlg2p protein at serine 90 or the mutation Tlg2p-S90D may play some role in protecting Tlg2p...
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National Repository of Grey Literature : 12 records found   previous11 - 12  jump to record:
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