Dag Emil Helland
Stilling
Emeritus
Tilhørighet
Publikasjoner
Vitenskapelig artikkel
- A. M. Szilway; S. Nordnes; I. R. Haugen et al. (1992). Epitope mapping of HIV-1 reverse transcripase and RNase H activities. (ekstern lenke)
- Rein Aasland; Lisbeth Charlotte Olsen; N. K. Spurr et al. (1990). Chromosomal assignment of Human Uracil-DNA Glycosylase to Chromosome 12. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- G. Slupphaug; F.-H. Markussen; Lisbeth Charlotte Olsen et al. (1993). Human Uracil-DNA glycosylase is shared by the nucleus and the mitochondria. (ekstern lenke)
- 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. (ekstern lenke)
- Ikramul Huq; Bjørn Ivar Haukanes; Dag Emil Helland (1992). Purification to homogeneity and characterization of a redoxyendonuclease from calf thymus. (ekstern lenke)
- 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. (ekstern lenke)
- Dag Emil Helland; J. L. Welles; A. Caputo et al. (1991). Transcellular transactivation by the HIV-1 #_t#_a#_t protein. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- Ikramul Huq; B.-I. Haukanes; Dag Emil Helland (1992). Purification to homogeneity and characterization of a redoxyendonuclease from calf thymus. (ekstern lenke)
- Lisbeth Charlotte Olsen; Rein Aasland; H. E. Krokan et al. (1992). Human uracil DNA glycosylase cDNA complements E.coli ung mutants. (ekstern lenke)
- 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. (ekstern lenke)
- Bjørn Ivar Haukanes; Krzysztof Szajko; Dag Emil Helland (1990). Action of spermidine, N1-acetylspermidine, and N8-acetylspermidine at apurinic sites in DNA. (ekstern lenke)
- Dag Emil Helland; Rune Male; Ruth Karin Kleppe et al. (1984). Properties of Enzymes that Recognize Modified Structures in DNA. (ekstern lenke)
- 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. (ekstern lenke)
- Bjørn Ivar Haukanes; Dag Emil Helland; kjell kleppe (1989). Action of mammalian AP-endonuclease on DNAs of defined sequences. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- Dag Emil Helland; Arnt Johan Raae; Per Fadnes et al. (1985). Properties of a DNA repair endonuclease from mouse plasmacytoma cells. (ekstern lenke)
- Rune Male; Bjørn Ivar Haukanes; Dag Emil Helland et al. (1987). Substrate specificity of 3-methyladenine-DNA glycosylase from calf thymus. (ekstern lenke)
- Dag Emil Helland; Rune Male; Bjørn Ivar Haukanes et al. (1987). Properties and mechanism of action of eukaryotic 3-methyladenine-DNA glycosylases. (ekstern lenke)
- Bjørn Ivar Haukanes; Christian-Urs Wittwer; Dag Emil Helland (1989). Mechanism of incision by an apurinic/apyrimidinic endonuclease present in human placenta. (ekstern lenke)
Vitenskapelig bokkapittel
- B. Bjorvatn; Dag Emil Helland (1990). Vaccines in health strategies of developing countries. The role of biotechnology and social sciences. (ekstern lenke)
- Dag Emil Helland; H. Repke; A. Caputo et al. (1991). The exogenous transactiviation of HIV-1 #_t#_a#_t. (ekstern lenke)
- Dag Emil Helland (1992). Genterapi - nytt håp for mange pasientgrupper. (ekstern lenke)
- Dag Emil Helland (1992). Genteknologi og AIDS-forskning. (ekstern lenke)
- Dag Emil Helland; A. Chilatifard; R. D. Cummings (1993). Structure of the oligosaccharides in the HIV-1 envelope glycoproteins. (ekstern lenke)
Leserbrev
Forelesning
- Dag Emil Helland (2003). Hype and hope i biomnedisinsk forsking. (ekstern lenke)
- Ragnar Fjelland; Dag Emil Helland; Paola De Cuzzani (2005). Ånd versus materie. (ekstern lenke)
- Dag Emil Helland (2003). Bioetiske utfordringar. (ekstern lenke)
- Dag Emil Helland (2003). Hype and hope i bioteknologi. (ekstern lenke)
Konferanseforedrag
Masteroppgave
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- 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. (ekstern lenke)
- Irene Fredriksen; Svend Davanger; Dag Emil Helland (2005). Framstilling og analyse av antiserum mot dei presynaptiske proteina synaptotagmin I, SNAP-25 og VAMP 2. (ekstern lenke)
- Svend Davanger; Dag Emil Helland; Almir Feta (2005). An effort to produce the proteins sec5 and sec6 recombinantly in bacteria and insect cells. (ekstern lenke)
Doktorgradsavhandling
Antologi
- 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). (ekstern lenke)
- Lars Haarr; Dag Emil Helland (1998). Genteknologi og det menneskelege. (ekstern lenke)