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University of Bergen
Dag Emil Helland's picture

Dag Emil Helland

Emeritus
Department of Biological Sciences (BIO)
  • E-mailhelland@uib.no
  • Visitor Address
    Thormøhlens gate 53 A/B
    5006 Bergen
  • Postal Address
    Postboks 7803
    5020 Bergen
Academic article
  • Show author(s) (2009). Biochemical and virological analysis of the 18-residue C-terminal tail of HIV-1 integrase. Retrovirology. 13 pages.
  • Show author(s) (2000). Structural and functional similarities between HIV-1 reverse transcriptase and the E. coli RNA polymerase ß' subunit. FEBS Letters. 43-47.
  • Show author(s) (1996). Monoclonal antibodies against human immunodeficiency virus type 1 integrase: Epitope mapping and differential effects on integrase activitties in vitro. Journal of Virology. 1580-1587.
  • Show author(s) (1996). A monoclonal antibody defines a novel HIV type 1 Tat domain involved in trans-cellular trans-activation. AIDS Research and Human Retroviruses. 611-619.
  • Show author(s) (1996). A monoclonal antibody defines a novel HIV type 1 Tat domain involved in trans-cellular trans-activation. AIDS Research and Human Retroviruses. 611-619.
  • Show author(s) (1993). The Complex-Type-N-Linked Oligosaccharides of gp120 from HIV-1 Contain Sulfated N-Acetylglucosamine Residues. Journal of Virology. 943-954.
  • Show author(s) (1993). Human Uracil-DNA glycosylase is shared by the nucleus and the mitochondria. Nucleic Acid Res. 2579-2584.
  • Show author(s) (1993). Characterization of HIV-1 reverse transcriptase with antibodies indicates conformational differences between the RNAse H domains of p 66 and p 15. Archives of Virology. Supplementum. 393-403.
  • Show author(s) (1993). Characterization of HIV-1 reverse transcriptase with antibodies indicate conformational differences between the RNAseH domains of p66 and p15. Archives of Virology. 393-403.
  • Show author(s) (1993). Characterization of HIV-1 reverse transcriptase With antibodies indicates conformational differences between the RNaseH domains of p66 and p15. Archives of Virology. 393-403.
  • Show author(s) (1992). Purification to homogeneity and characterization of a redoxyendonuclease from calf thymus. European Journal of Biochemistry (EJB). 833-839.
  • Show author(s) (1992). Purification to homogeneity and characterization of a redoxyendonuclease from calf thymus. European Journal of Biochemistry (EJB). 833-839.
  • Show author(s) (1992). Human uracil DNA glycosylase cDNA complements E.coli ung mutants. Nucleic Acid Res. 4473-4478.
  • Show author(s) (1992). Epitope mapping of HIV-1 reverse transcriptase with monoclonal antibodies which inhibit the polymerase and the RNaseH activities. Journal of Acquired Immune Deficiency Syndromes. 647-657.
  • Show author(s) (1992). Epitope mapping of HIV-1 reverse transcripase and RNase H activities. Journal of Acquired Immune Deficiency Syndromes. 647-657.
  • Show author(s) (1991). Transcellular transactivation by the HIV-1 #_t#_a#_t protein. Journal of Virology. 4547-4549.
  • Show author(s) (1991). Gp160 of HIV-1 synthesized by persistently infected Molt-3 cells is terminally glycosylated: Evidence that cleavage of gp160 occurs subsequent to oligosaccharide processing. Archives of Biochemistry and Biophysics.
  • Show author(s) (1991). Cell cycle regulation and in vitro hybrid arrest analysis of the major human uracil- DNA glycosylase. Nucleic Acids Research (NAR). 5131-5137.
  • Show author(s) (1990). Chromosomal assignment of Human Uracil-DNA Glycosylase to Chromosome 12. Genomics.
  • Show author(s) (1990). Action of spermidine, N1-acetylspermidine, and N8-acetylspermidine at apurinic sites in DNA. FEBS Letters. 389-393.
  • Show author(s) (1989). Mechanism of incision by an apurinic/apyrimidinic endonuclease present in human placenta. Nucleic Acids Research (NAR). 5529-5535.
  • Show author(s) (1989). Action of mammalian AP-endonuclease on DNAs of defined sequences. Nucleic Acids Research (NAR). 1493-1509.
  • Show author(s) (1988). Analysis of cleavage Products of DNA repair enzymes and other nucleases. Characterization of an apurinic/apyrimidinic specific endonuclease from mouse plasmacytoma cells. Nucleic Acids Research (NAR). 6871-6882.
  • Show author(s) (1987). Substrate specificity of 3-methyladenine-DNA glycosylase from calf thymus. European Journal of Biochemistry (EJB). 13-19.
  • Show author(s) (1987). Properties and mechanism of action of eukaryotic 3-methyladenine-DNA glycosylases. Journal of Cell Science, Supplement. 139-146.
  • Show author(s) (1985). Properties of a DNA repair endonuclease from mouse plasmacytoma cells. European Journal of Biochemistry (EJB). 471-477.
  • Show author(s) (1984). Properties of Enzymes that Recognize Modified Structures in DNA. Journal of Protein Chemistry. 73-85.
Report
  • Show author(s) (2007). Årsrapport 2006. De nasjonale forskningsetiske komiteer. .
Popular scientific lecture
  • Show author(s) (2005). Ånd versus materie.
  • Show author(s) (2003). Hype and hope i bioteknologi.
  • Show author(s) (2003). Hype and hope i biomnedisinsk forsking.
  • Show author(s) (2003). Bioetiske utfordringar.
Academic lecture
  • Show author(s) (2003). lentiviral reverse Transcriptases.
  • Show author(s) (2003). Bioetikkundervising ved Universitetet i Bergen.
  • Show author(s) (2003). Bioetikkundervising.
Academic anthology/Conference proceedings
  • Show author(s) (1990). Damage specific mammalian endonucleases. In "DNA Damage and Repair in Human Tissues" (eds. Sutherland, B.M. and A.D. Woodhead). Plenum Press.
Academic commentary
  • Show author(s) (2008). Patentnemd uten portefølje? En analyse av etiske utfordringer ved patentering.
Non-fiction book
  • Show author(s) (1998). Genteknologi og det menneskelege. Alma Mater.
Thesis at a second degree level
  • Show author(s) (2005). Framstilling og analyse av antiserum mot dei presynaptiske proteina synaptotagmin I, SNAP-25 og VAMP 2.
  • Show author(s) (2005). An effort to produce the proteins sec5 and sec6 recombinantly in bacteria and insect cells.
Masters thesis
  • Show author(s) (2005). Establishing a Yeast Three-Hybrid System to study Ternary Complex formation between Nucleocapsid and the Hetrodimer reverse Transcriptase of HIV-1.
  • Show author(s) (2005). Comparison of the systemic cytokine and antibody responses after influenza vaccination or infection of mice.
  • Show author(s) (2005). A study of Heterodimerization of HIV-1 Reverse Transcriptase Using Deletion Mutations in the RNase H domain.
  • Show author(s) (2005). A genetic approach to study heterodimerization of HIV-1 Reverse Transcriptase by site-directed mutagenesis using the yeast-two-hybrid system: a special emphasis on the role of the Rnase H domain.
Feature article
  • Show author(s) (2003). Modellen som løyste gåta. Bergens Tidende.
Doctoral dissertation
  • Show author(s) (2004). The subcellular localization, function and trafficking of lentiviral Tat protein.
  • Show author(s) (1981). Symmetrically transcribed T4RNA.
Academic chapter/article/Conference paper
  • Show author(s) (1993). Structure of the oligosaccharides in the HIV-1 envelope glycoproteins.
  • Show author(s) (1992). Genterapi - nytt håp for mange pasientgrupper. 5 pages.
  • Show author(s) (1992). Genteknologi og AIDS-forskning. 6 pages.
  • Show author(s) (1991). The exogenous transactiviation of HIV-1 #_t#_a#_t. 10 pages.
  • Show author(s) (1990). Vaccines in health strategies of developing countries. The role of biotechnology and social sciences. 1 pages.
Popular scientific book
  • Show author(s) (1998). Genteknologi og det menneskelege. Alma mater.

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