Visar resultat 1 - 5 av 46 avhandlingar innehållade ordet Retrovirus.
Sammanfattning : Reverse transcriptase (RT) is a crucial enzyme for retrovirus replication, and its presence in the virion is indispensable for infectivity. This thesis illustrates the use of RT activity assays as tools for quantitation and characterization of different retroviruses, particularly HIV. LÄS MER
2. On the etiology and pathogenesis of systemic lupus erythematosus with special reference to environmental factors
Sammanfattning : Systemic lupus erythematosus (SLE) is a complex autoimmune disease in which environmental factors interact with genetic factors in the development of the disease process and evolution of clinical manifestations. In this thesis both exogenous factors and host factors were investigated, as well as important immunopathological aspects including involvement of immune complex (IC), the complement system and interferon-alpha (IFN-α). LÄS MER
Sammanfattning : The enzyme deoxyuridine 5’-triphosphate nucleotidohydrolase (dUTPase, EC 126.96.36.199) catalyzes the hydrolysis of dUTP to dUMP and pyrophosphate. LÄS MER
4. On Monomeric and Trimeric dUTPases. Recombinant Expression, Purification, Conformational Properties and Catalytic Characteristics
Sammanfattning : Nucleotide metabolism and replication of nucleic acids are processes of fundamental importance. A crucial enzyme in nucleotide metabolism is dUTPase (E.C. 3. LÄS MER
Sammanfattning : Long terminal repeats (LTRs) are non-coding repeats flanking the protein-coding genes of LTR retrotransposons. The variability of LTRs poses a challenge in studying them. Hidden Markov models (HMMs), probabilistic models widely used in pattern recognition, are useful in dealing with this variability. LÄS MER