Search for dissertations about: "reverse transcriptase"

Showing result 21 - 25 of 127 swedish dissertations containing the words reverse transcriptase.

  2. 21. Targeting HIV-1 entry and reverse transcription by vaccination

    Author : Bartek Zuber; Karolinska Institutet; Karolinska Institutet; []
    Keywords : HIV-1; DNA vaccination; coreceptor; CCR5; RT; drug resistance; CpG; pseudovirus;

    Abstract : Human immunodeficiency virus type I (HIV-1) is a complex retrovirus, which uses the CD4 receptor and chemokine receptors to infect its target cells. The chemokine receptor CCR5 is essential for primary HIV-1 infection. The hallmark of retroviruses is the enzyme reverse transcriptase (RT), which transcribes the virus genome from RNA to DNA. READ MORE

  4. 22. Transcriptional and post-transcriptional regulation of telomerase reverse transcriptase (hTERT) expression : the role of histone modification and alternative splicing

    Author : Zheng Ge; Karolinska Institutet; Karolinska Institutet; []
    Keywords : ;

    Abstract : Telomerase, an RNA-dependent DNA polymerase responsible for telomeric DNA elongation, is silent in most normal differentiated human cells due to the tight repression of its catalytic unit, telomerase reverse transcriptase (hTERT), whereas constitutive hTERT expression and telomerase activation are prerequisites for cellular immortalization/malignant transformation. As reconfiguration of chromatin acts like a master on/off switch, determining whether particular genes are active or inactive, the project was specifically designed to first elucidate molecular strategies that integrate diverse signalling pathways at the hTERT chromatin and consequently result in telomerase activation or repression in normal and malignant human cells. READ MORE

  5. 23. Biosensor Studies of Ligand Interactions with Structurally Flexible Enzymes : Applications for Antiviral Drug Development

    Author : Matthis Geitmann; U. Helena Danielson; Marc H. V. van Regenmortel; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; SPR biosensor; HIV-1 reverse transcriptase; HCMV protease; interaction kinetics; drug discovery; non-nucleoside inhibitor; resistance; Biokemi; Biochemistry; Biokemi;

    Abstract : The use of a surface plasmon biosensor fills a missing link in kinetic studies of enzymes, since it measures directly the interaction between biomolecules and allows determination of parameters that are determined only indirectly in activity assays. The present thesis deals with kinetic and dynamic aspects of ligand binding to two viral enzymes: the human cytomegalovirus (HCMV) protease and the human immunodeficiency virus type 1 reverse transcriptase (HIV-1 RT). READ MORE

  6. 24. Gene expression profiling with real-time PCR

    Author : Anders Ståhlberg; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; single cell biology; reverse transcription; LightUp probe; cancer diagnostics; real-time PCR; gene expression profiling; tumor biology;

    Abstract : The sequence of the entire human genome is available today, and this information can be used to understand, characterize, and treat complex diseases such as cancer. Many cellular functions related to survival, growth and differentiation are reflected in the gene expression pattern, and the ability to quantify transcription levels of specific genes is, and always has been, central to research on gene function. READ MORE

  7. 25. Computational Modelling of Ligand Complexes with G-Protein Coupled Receptors, Ion Channels and Enzymes

    Author : Lars Boukharta; Johan Åqvist; Christopher A. Reynolds; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; computer simulations; molecular dynamics; ligand binding; free energy perturbation; linear interaction energy; binding free energy; homology modelling; structure prediction; alanine scanning; site-directed mutagenesis; hERG; GPCR; neuropeptide Y; HIV-1 reverse transcriptase; integron integrase; Molecular Biotechnology; Molekylär bioteknik;

    Abstract : Accurate predictions of binding free energies from computer simulations are an invaluable resource for understanding biochemical processes and drug action. The primary aim of the work described in the thesis was to predict and understand ligand binding to several proteins of major pharmaceutical importance using computational methods. READ MORE