Dag Emil Helland
Position
Emeritus
Affiliation
Publications
Academic article
- Mohd J Dar; Blandine Monel; Lavanya Krishnan et al. (2009). Biochemical and virological analysis of the 18-residue C-terminal tail of HIV-1 integrase. (external link)
- Anne Marie Szilvay; Beate Stern; Arne Blichenberg et al. (2000). Structural and functional similarities between HIV-1 reverse transcriptase and the E. coli RNA polymerase ß' subunit. (external link)
- B.M. Nilsen; I.R. Haugan; Karin Berg et al. (1996). Monoclonal antibodies against human immunodeficiency virus type 1 integrase: Epitope mapping and differential effects on integrase activitties in vitro. (external link)
- Håvard Valvatne; Anne Marie Szilvay; Dag Emil Helland (1996). A monoclonal antibody defines a novel HIV type 1 Tat domain involved in trans-cellular trans-activation. (external link)
- Håvard Valvatne; Anne Marie Szilvay; Dag Emil Helland (1996). A monoclonal antibody defines a novel HIV type 1 Tat domain involved in trans-cellular trans-activation. (external link)
- Anne Marie Szilvay; S. Nornes; A. Kannapiran et al. (1993). Characterization of HIV-1 reverse transcriptase with antibodies indicate conformational differences between the RNAseH domains of p66 and p15. (external link)
- A. Shilatifard; R. M. Merkle; Dag Emil Helland et al. (1993). The Complex-Type-N-Linked Oligosaccharides of gp120 from HIV-1 Contain Sulfated N-Acetylglucosamine Residues. (external link)
- G. Slupphaug; F.-H. Markussen; Lisbeth Charlotte Olsen et al. (1993). Human Uracil-DNA glycosylase is shared by the nucleus and the mitochondria. (external link)
- Anne Marie Szilvay; Svanhild Nornes; Amirtheligam Kannapiran et al. (1993). Characterization of HIV-1 reverse transcriptase With antibodies indicates conformational differences between the RNaseH domains of p66 and p15. (external link)
- Anne Marie Szilvay; S. Nornes; Amirtheligam Kannapiran et al. (1993). Characterization of HIV-1 reverse transcriptase with antibodies indicates conformational differences between the RNAse H domains of p 66 and p 15. (external link)
- A. M. Szilway; S. Nordnes; I. R. Haugen et al. (1992). Epitope mapping of HIV-1 reverse transcripase and RNase H activities. (external link)
- Ikramul Huq; Bjørn Ivar Haukanes; Dag Emil Helland (1992). Purification to homogeneity and characterization of a redoxyendonuclease from calf thymus. (external link)
- Ikramul Huq; B.-I. Haukanes; Dag Emil Helland (1992). Purification to homogeneity and characterization of a redoxyendonuclease from calf thymus. (external link)
- Lisbeth Charlotte Olsen; Rein Aasland; H. E. Krokan et al. (1992). Human uracil DNA glycosylase cDNA complements E.coli ung mutants. (external link)
- Anne Marie Szilvay; S. Nornes; I. R. Haugan et al. (1992). Epitope mapping of HIV-1 reverse transcriptase with monoclonal antibodies which inhibit the polymerase and the RNaseH activities. (external link)
- R. K. Merkle; Dag Emil Helland; J. L. Welles et al. (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. (external link)
- Dag Emil Helland; J. L. Welles; A. Caputo et al. (1991). Transcellular transactivation by the HIV-1 #_t#_a#_t protein. (external link)
- G. Slupphaug; Lisbeth Charlotte Olsen; Dag Emil Helland et al. (1991). Cell cycle regulation and in vitro hybrid arrest analysis of the major human uracil- DNA glycosylase. (external link)
- Rein Aasland; Lisbeth Charlotte Olsen; N. K. Spurr et al. (1990). Chromosomal assignment of Human Uracil-DNA Glycosylase to Chromosome 12. (external link)
- Bjørn Ivar Haukanes; Krzysztof Szajko; Dag Emil Helland (1990). Action of spermidine, N1-acetylspermidine, and N8-acetylspermidine at apurinic sites in DNA. (external link)
- Bjørn Ivar Haukanes; Dag Emil Helland; kjell kleppe (1989). Action of mammalian AP-endonuclease on DNAs of defined sequences. (external link)
- Bjørn Ivar Haukanes; Christian-Urs Wittwer; Dag Emil Helland (1989). Mechanism of incision by an apurinic/apyrimidinic endonuclease present in human placenta. (external link)
- Bjørn Ivar Haukanes; Dag Emil Helland; kjell kleppe (1988). Analysis of cleavage Products of DNA repair enzymes and other nucleases. Characterization of an apurinic/apyrimidinic specific endonuclease from mouse plasmacytoma cells. (external link)
- Rune Male; Bjørn Ivar Haukanes; Dag Emil Helland et al. (1987). Substrate specificity of 3-methyladenine-DNA glycosylase from calf thymus. (external link)
- Dag Emil Helland; Rune Male; Bjørn Ivar Haukanes et al. (1987). Properties and mechanism of action of eukaryotic 3-methyladenine-DNA glycosylases. (external link)
- Dag Emil Helland; Arnt Johan Raae; Per Fadnes et al. (1985). Properties of a DNA repair endonuclease from mouse plasmacytoma cells. (external link)
- Dag Emil Helland; Rune Male; Ruth Karin Kleppe et al. (1984). Properties of Enzymes that Recognize Modified Structures in DNA. (external link)
Academic book chapter
- Dag Emil Helland; A. Chilatifard; R. D. Cummings (1993). Structure of the oligosaccharides in the HIV-1 envelope glycoproteins. (external link)
- Dag Emil Helland (1992). Genterapi - nytt håp for mange pasientgrupper. (external link)
- Dag Emil Helland (1992). Genteknologi og AIDS-forskning. (external link)
- Dag Emil Helland; H. Repke; A. Caputo et al. (1991). The exogenous transactiviation of HIV-1 #_t#_a#_t. (external link)
- B. Bjorvatn; Dag Emil Helland (1990). Vaccines in health strategies of developing countries. The role of biotechnology and social sciences. (external link)
Academic commentary
Book anthology
- Lars Haarr; Dag Emil Helland (1998). Genteknologi og det menneskelege. (external link)
- Bjørn Ivar Haukanes; P.W. Doetsch; Lisbeth Charlotte Olsen et al. (1990). Damage specific mammalian endonucleases. In "DNA Damage and Repair in Human Tissues" (eds. Sutherland, B.M. and A.D. Woodhead). (external link)
Conference lecture
Doctoral thesis (PhD)
Lecture
- Ragnar Fjelland; Dag Emil Helland; Paola De Cuzzani (2005). Ånd versus materie. (external link)
- Dag Emil Helland (2003). Hype and hope i biomnedisinsk forsking. (external link)
- Dag Emil Helland (2003). Bioetiske utfordringar. (external link)
- Dag Emil Helland (2003). Hype and hope i bioteknologi. (external link)
Letter to the editor
Master’s thesis
- Siri Bakke; Dag Emil Helland; Rune Male (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. (external link)
- Christel Gill Haanshuus; Dag Emil Helland; Rune Male (2005). A study of Heterodimerization of HIV-1 Reverse Transcriptase Using Deletion Mutations in the RNase H domain. (external link)
- Silje Sørum Markussen; Dag Emil Helland; Rune Male (2005). Establishing a Yeast Three-Hybrid System to study Ternary Complex formation between Nucleocapsid and the Hetrodimer reverse Transcriptase of HIV-1. (external link)
- Ewa Alicja Szyszko; Abdullah Sami Madhun; Dag Emil Helland (2005). Comparison of the systemic cytokine and antibody responses after influenza vaccination or infection of mice. (external link)
- Irene Fredriksen; Svend Davanger; Dag Emil Helland (2005). Framstilling og analyse av antiserum mot dei presynaptiske proteina synaptotagmin I, SNAP-25 og VAMP 2. (external link)
- Svend Davanger; Dag Emil Helland; Almir Feta (2005). An effort to produce the proteins sec5 and sec6 recombinantly in bacteria and insect cells. (external link)