National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Modelling of tick borne enecephalitis virus (TBEV) proteins and their complexes
HALBEISEN, Marco
In this bachelor thesis the focus was on the study of non-structural proteins of the tick-borne encephalitis virus involved in the replicatory process of the virus. Non-structural protein number 3 (NS3) and number 5 (NS5) contain a helicase and an RNA-dependent RNA polymerase domain, respectively, and play a crucial role in the life cycle of the virus. Therefore, they are of interest to develop a potential antiviral drug inhibiting the replication of the pathogen. It has been found that these two proteins form a dimer during the replication of the viral RNA. The aim of the thesis was to identify the exact interaction of the two proteins with existing hydrogen-deuterium mass spectroscopy data as well as modelling the RNA into the complexes. The research was conducted by using computational biology tools including homology modelling using MODELLER, manual modelling in PyMOL and Chimera as well as Molecular Dynamics Simulations in GROMACS.
Preparation and Characterization of Protein Binders Mimicking Epitopes of HIV-1 Neutralizing Antibodies
Šulc, Josef ; Malý, Petr (advisor) ; Novotný, Marian (referee)
For three decades, the ongoing HIV pandemic has taken the lives of tens of millions of people. Still, more tens of millions are fighting this incurable disease today. Current failures in combating this global problem are caused mainly by the virus's extreme ability of mutation, its very effective molecular shield which repels the immune system's attacks, and its immense variability. A breakthrough, achieved relatively recently, is the discovery of the so-called broadly neutralizing antibodies against HIV-1, which carry a very efficient and broad neutralizing response. So far, it's not known how to elucidate the production of these antibodies in the infected hosts to quell or altogether eliminate the virus. This work deals with experimental results, which led to both in vivo and in vitro proof-of-concept of the so-called protein mimetics, the ability to imitate viral surface epitopes, and therefore stimulate an efficient immune response carried by targeted broadly neutralizing antibodies. This effect is mediated by recombinant binding proteins, based on the Myomedin scaffold. This work describes the selection and characterization of these binding proteins mimicking the epitopes of one of the most effective broadly neutralizing antibodies, 10E8. It shows that the binding affinities of selected...

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