Search for dissertations about: "capsid formation"

Showing result 1 - 5 of 18 swedish dissertations containing the words capsid formation.

  1. 1. The role of the capsid protein in Semliki Forest virus assembly

    Author : Kerstin Forsell; Karolinska Institutet; Karolinska Institutet; []
    Keywords : Semliki Forest virus; RNA encapsidation; NC assembly; virus budding; RNA uncoating;

    Abstract : Enveloped viruses, like the Alphaviruses, encapsidate their genomes into a nucleocapsid (NC) or core structure which is surrounded by a lipid bilayer (envelope) with spike proteins. The alphavirus Semliki Forest virus (SFV), is an RNA virus with a genomic 42 S RNA of positive polarity. READ MORE

  2. 2. The effect of alpha-HGA on HIV-1 replication

    Author : Masoud Youssefi; Karolinska Institutet; Karolinska Institutet; []
    Keywords : HIV-1; p24; capsid formation; alpha-HGA; antiretroviral; uptake;

    Abstract : Different classes of anti HIV-1 drugs are now available for treatment of HIV-1 infection. Although improved, these drugs show adverse effects and their long-term efficiency is severely hampered by the emergence of resistant viruses. Therefore, less toxic and more effective anti HIV-1 therapeutics agents are still needed. READ MORE

  3. 3. Studies on HIV-1 core assembly

    Author : Samir Abdurahman; Karolinska Institutet; Karolinska Institutet; []
    Keywords : HIV-1; mutation; capsid; p24; capsid assembly; alpha-HGA; antiviral;

    Abstract : The main objective of this thesis was to define the roles of Gag (p55), in particular, the capsid (CA, p24) protein in human immunodeficiency virus type 1 (HIV-1) particle assembly. More specifically, i) to determine the relative contribution of some specific residues and/or sequences in HIV-1 CA core assembly and virus release, ii) to characterize the importance of two conserved residues with quite opposing intra-molecular contacts with other CA residues in capsid assembly, iii) to define the role and significance of a specific amino acid involved in formation of a conserved β-hairpin structure in HIV-1 capsid assembly, and iv) to define the active antiviral metabolite of an antiviral tripeptide amide previously found to affect HIV-1 capsid assembly and infectivity. READ MORE

  4. 4. Effect of the tri-peptide glycyl-prolyl-glycine amide on HIV-1 replication

    Author : Jin Su; Karolinska Institutet; Karolinska Institutet; []
    Keywords : HIV-1; antiretrovirals; peptides; tri-peptides; GPG-NH2; capsid formation; p24 dimerization; coneshaped core; GPG motif; V3 loop; infectivity;

    Abstract : The human immunodeficiency virus type 1 (HIV-1) is the etiological agent responsible for AIDS worldwide. The aim of this thesis was to evaluate the anti-HIV-1 activity of short peptides and to investigate their mode of inhibition. READ MORE

  5. 5. Experimental studies of human fetal liver cells : in regard to in utero hematopoietic stem cell transplantation

    Author : Bim Lindton; Karolinska Institutet; Karolinska Institutet; []
    Keywords : In utero transplantation; fetal liver cells; mixed lymphocyte culture; CD3; CD56; HLA class II; parvovirus B 19 capsids; corticosteroids; cytotoxic drugs; colony formation.;

    Abstract : Successful in utero hematopoietic stem cell transplantation represents a potential step forward in the management of patients with severe inherited hematological, metabolic and immunological disorders. Animal data from a number of species have demonstrated evidence of engraftment, but to date the only effective in utero transplantations (IUTx) in humans have been performed in fetuses with severe immunodeficiencies, suggesting that the fetal immune system play a vital role in the success or failure of in utero transplantation. READ MORE