Národní úložiště šedé literatury Nalezeno 35 záznamů.  začátekpředchozí21 - 30další  přejít na záznam: Hledání trvalo 0.01 vteřin. 
Biogenesis of mitochondria in parasitic protist Trypanosoma brucei
Mach, Jan
Výzkum zaměřený na mitochondrie, včetně jejich redukovaných forem, jako jsou hydrogenosomy a mitosomy, vedl v poslední době u této nepostradatelné organely k objevu nečekané diverzity. Je zajímavé, že mitochondrie parazitického prvoka Trypanosoma brucei je schopna, v závislosti na dostupných zdrojích uhlíku, projít pozoruhodnými funkčními a strukturními změnami. Mimoto bylo navrženo, že trypanosomy patří mezi nejstarší známá eukaryota a jako taková vzbuzuje jejich mitochondrie u biologů o to větší zájem. Abychom přispěli k poznání mitochondriální biogeneze a funkce, zaměřili jsme se na studium dvou klíčových mitochondriálních procesů, štěpení preproteinů importovaných do mitochondrie a mechanismus transportu pyruvátu do těchto organel. Navíc jsme studovali příjem železa do T. brucei. Tento kov je nezbytný pro funkci mnoha proteinů, především pro železo-sirné mitochondriální proteiny. Evoluční historie trypanosom a jejich mitochondrie je sporná. Na základě některých zpráv představuje mitochondrie trypanosom původní formu této organely, což je podpořeno objevením domnělé archaické translokázy vnější mitochondriální membrány (ATOM) a jediného typu translokázy, tvořící pór na vnitřní mitochondriální membráně. My jsme naopak identifikovali a charakterizovali mitochondriální procesující peptidázu v...
Elucidating the subunit composition of tRNA-guanine transglycosylase in \kur{Trypanosoma brucei}
BĚHÁLKOVÁ, Veronika
The aim of this thesis was to elucidate the relationship and/or interaction between two tRNA-guanine transglycosylase paralogs (putative subunits of the TGT enzyme) identified in Trypanosoma brucei. The overexpression of these proteins was tested in a rescue experiment in a Schizosaccharomyces pombe experimental system.
Characterization of TbPH1, a kinetoplastid-specific pleckstrin homology domain containing kinesin-like protein
KALTENBRUNNER, Sabine
The aim of this master thesis was the investigation of the uncharacterized protein TbPH1, by in silico studies, determining effects of its knock-down, studying the effect of a knock-down on the cell cycle, examining its cellular localization, and finding out about possible complexes and interaction-partners.
Identifying Protein-Protein Interactions of \kur{Trypanosoma brucei} F\dindex{0}F\dindex{1}-ATP Synthase Subunits Using the Yeast Two Hybrid System
KUNZOVÁ, Michaela
We are utilizing the yeast two-hybrid screen to identify the interacting partners of the T. brucei FoF1-ATP synthase subunits that have no known homologues outside of Trypanosomatids. A better understanding of the framework of these 14 unknown proteins may suggest their function within this essential enzyme.
Kinetoplastids biology, from the group phylogeny and evolution into the secrets of the mitochondrion of one representative: \kur{Trypanosoma brucei}, the model organism in which new roles of the evolutionary conserved genes can be explored
TÝČ, Jiří
This thesis is composed of two topics, for which trypanosomatids and evolution are common denominators. First part deals with phylogenetic relationships among monoxenous trypanosomatids, with emphasis on flagellates parasitizing dipteran hosts, analyzed mainly from biogeographical and evolutionary perspectives. Second part focuses on the trypanosomatid Trypanosoma brucei, causative agent of severe diseases, which serves as a model organism for functional studies of evolutionary conserved mitochondrial proteins, in particular those involved in replication, maintenance and expression of the mitochondrial genome, also termed the kinetoplast. This thesis identified the mtHsp70/mtHsp40 chaperone machinery as an essential component of replication and maintenance of the kinetoplast, and also identified numerous conditions under which mtHsp70 has a tendency to aggregate. Moreover, several conserved proteins, previously identified to be part of the mitochondrial ribosome, were shown to be important for translation of the mitochondrial transcripts.
FoF1-ATP synthase/ATPase in the parasitic protist, \kur{Trypanosoma brucei}
ŠUBRTOVÁ, Karolína
This thesis primarily focuses on the FoF1-ATP synthase/ATPase complex in the parasitic protist, Trypanosoma brucei. Instead of its normal aerobic function to synthesize ATP, it is required to hydrolyze ATP to maintain the m in the infective bloodstream stage of T. brucei and the related parasite, T. b. evansi. To better understand the composition, structure and function of this druggable target, my work focused on deciphering the function of three of the unique Euglenozoa specific subunits that comprise this complex molecular machine. Furthermore, the ADP/ATP carrier, which provides substrates for the FoF1-ATP synthase/ATPase, was functionally characterized and evaluated if it is physically associated with the complexes of the oxidative phosphorylation pathway.
Erv1 associated mitochondrial import-export pathway and the cytosolic iron-sulfur protein assembly machinery in Trypanosoma brucei
BASU, Somsuvro
This thesis highlights a divergent mitochondrial intermembrane assembly pathway in the parasitic protist Trypanosoma brucei. A comparative genomic study reveals the connection of Erv1 with the cytosolic iron-sulfur protein assembly (CIA) pathway in trypanosomatids. Further, the CIA machinery of T. brucei has been described using RNAi interference and other biochemical and complementation assays. Finally, part of the divergent CIA machinery has been identified in the human intestinal pathogen Giardia intestinalis by means of complementation assays in T. brucei.
Enzymes of Purine Salvage Pathway in \kur{Trypanosoma brucei} and the Trypanocidal Action of Acyclic Nucleoside Phosphonates
KOTRBOVÁ, Zuzana
This study aims to functionally characterize two enzymes, HGPRT and XPRT, of an essential purine salvage pathway in the infection stage of Trypanosoma brucei. Localization, in vivo function and in vitro activity of these enzymes were characterized. Effect of acyclic nucleoside phosphonates, putative inhibitors of HGXPRT, on the viability of bloodstream form of T. brucei was evaluated.
The Localization of the Mitochondrial Proteins MRP1, KREL2 and LSU1 of Trypanosoma brucei
KALTENBRUNNER, Sabine
The aim of this thesis was to investigate the localization of the mitochondrial proteins MRP1, KREL2 and LSU1 of Trypanosoma brucei. Furthermore, the proper functioning of the eYFP-tagged protein MRP1 was investigated.
Iron-Sulfur Cluster Assembly in Trypanosoma brucei
HAINDRICH, Alexander Christoph
In this thesis we investigated genes of the Cytosolic Iron sulfur cluster assembly (CIA) pathway in T. brucei procyclic and blood-stream form for their possible functional redundancy. For this, RNAi double knockdown plasmids were generated containing knockdown partners which were selected based on the proposed model of the CIA pathway in S. cerevisiae. The generated plasmids were transfected into T. brucei cells, and growth effects on the transfectants upon tetracycline induced RNAi was measured.

Národní úložiště šedé literatury : Nalezeno 35 záznamů.   začátekpředchozí21 - 30další  přejít na záznam:
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