Dag E. Helland

1.4k total citations
50 papers, 1.2k citations indexed

About

Dag E. Helland is a scholar working on Molecular Biology, Infectious Diseases and Virology. According to data from OpenAlex, Dag E. Helland has authored 50 papers receiving a total of 1.2k indexed citations (citations by other indexed papers that have themselves been cited), including 41 papers in Molecular Biology, 8 papers in Infectious Diseases and 7 papers in Virology. Recurrent topics in Dag E. Helland's work include DNA and Nucleic Acid Chemistry (19 papers), DNA Repair Mechanisms (18 papers) and HIV Research and Treatment (7 papers). Dag E. Helland is often cited by papers focused on DNA and Nucleic Acid Chemistry (19 papers), DNA Repair Mechanisms (18 papers) and HIV Research and Treatment (7 papers). Dag E. Helland collaborates with scholars based in Norway, United States and France. Dag E. Helland's co-authors include William A. Haseltine, Paul W. Doetsch, Hans E. Krokan, Rein Aasland, Lisbeth C. Olsen, Kjell Kleppe, Geir Slupphaug, Antonella Caputo, W. David Henner and Richard P. Cunningham and has published in prestigious journals such as Nucleic Acids Research, Journal of Biological Chemistry and The EMBO Journal.

In The Last Decade

Dag E. Helland

48 papers receiving 1.2k citations

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name h Career Trend Papers Cites
Dag E. Helland Norway 19 945 225 149 138 128 50 1.2k
Michael S. Boosalis United States 23 1.7k 1.8× 107 0.5× 217 1.5× 248 1.8× 104 0.8× 37 2.1k
Charles Garrett United States 9 1.2k 1.3× 52 0.2× 97 0.7× 181 1.3× 175 1.4× 10 1.5k
Lawrence A. Loeb United States 10 537 0.6× 133 0.6× 133 0.9× 137 1.0× 36 0.3× 10 724
Federico Focher Italy 27 1.0k 1.1× 163 0.7× 112 0.8× 406 2.9× 407 3.2× 95 1.7k
Giovanni Ciarrocchi Italy 24 1.1k 1.2× 40 0.2× 132 0.9× 165 1.2× 139 1.1× 70 1.5k
Mary H. Hanlon United States 17 925 1.0× 210 0.9× 98 0.7× 283 2.1× 143 1.1× 27 1.3k
Himadri Samanta United States 19 676 0.7× 268 1.2× 63 0.4× 298 2.2× 116 0.9× 35 1.2k
H Pelletier France 10 684 0.7× 74 0.3× 54 0.4× 187 1.4× 32 0.3× 16 879
Edwin C. Murphy United States 20 821 0.9× 73 0.3× 66 0.4× 35 0.3× 83 0.6× 47 1.1k
Corinne Rommens France 14 640 0.7× 50 0.2× 74 0.5× 30 0.2× 121 0.9× 28 1.0k

Countries citing papers authored by Dag E. Helland

Since Specialization
Citations

This map shows the geographic impact of Dag E. Helland's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Dag E. Helland with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Dag E. Helland more than expected).

Fields of papers citing papers by Dag E. Helland

Since Specialization
Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Dag E. Helland. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Dag E. Helland. The network helps show where Dag E. Helland may publish in the future.

Co-authorship network of co-authors of Dag E. Helland

This figure shows the co-authorship network connecting the top 25 collaborators of Dag E. Helland. A scholar is included among the top collaborators of Dag E. Helland based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Dag E. Helland. Dag E. Helland is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

20 of 20 papers shown
1.
Myhr, Kjell‐Morten, P. Frost, M. Grønning, et al.. (2009). Absence of HTLV-1 related sequences in MS from high prevalence areas in Western Norway. Acta Neurologica Scandinavica. 89(1). 65–68. 1 indexed citations
2.
Dar, Mohd Jamal, Blandine Monel, Lavanya Krishnan, et al.. (2009). Biochemical and virological analysis of the 18-residue C-terminal tail of HIV-1 integrase. Retrovirology. 6(1). 94–94. 31 indexed citations
3.
Szilvay, Anne Marie, et al.. (2000). Structural and functional similarities between HIV‐1 reverse transcriptase and the Escherichia coli RNA polymerase β′ subunit. FEBS Letters. 484(1). 43–47. 7 indexed citations
4.
Digranes, Asbjørn, Inger Lise Haugen, Dag E. Helland, et al.. (1995). Systemic and mucosal antibody responses to group B streptococci following immunization of the colonic-rectal mucosa. Journal of Reproductive Immunology. 28(3). 247–262. 11 indexed citations
5.
Slupphaug, Geir, Rein Aasland, Niels Aarsæther, et al.. (1993). Nuclear and mitochondrial forms of human uracil-DNA glycosylase are encoded by the same gene. Nucleic Acids Research. 21(11). 2579–2584. 121 indexed citations
6.
Szilvay, Anne Marie, 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. Archives of Virology. 131(3-4). 393–403. 5 indexed citations
7.
Huq, Ikramul, Bjørn Ivar Haukanes, & Dag E. Helland. (1992). Purification to homogeneity and characterization of a redoxyendonuclease from calf thymus. European Journal of Biochemistry. 206(3). 833–839. 3 indexed citations
8.
Olsen, Lisbeth C., Rein Aasland, Hans E. Krokan, & Dag E. Helland. (1991). Human uracil-DNA glycosylase complementsE.coli ungmutants. Nucleic Acids Research. 19(16). 4473–4478. 31 indexed citations
9.
Merkle, Roberta K., et al.. (1991). gp160 of HIV-I 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. 290(1). 248–257. 25 indexed citations
10.
Slupphaug, Geir, et al.. (1991). Cell cycle regulation andin vitrohybrid arrest analysis of the major human uracil-DNA glycosylase. Nucleic Acids Research. 19(19). 5131–5137. 64 indexed citations
11.
Haukanes, Bjørn Ivar, Katarzyna Szajko, & Dag E. Helland. (1990). Action of spermidine, N1‐acetylspermidine, and N8acetylspermidine at apurinic sites in DNA. FEBS Letters. 269(2). 389–393. 4 indexed citations
12.
Krokan, Hans E., Lisbeth C. Olsen, Rein Aasland, et al.. (1990). DNA Repair in Mammalian Tissues and Cells. PubMed. 53. 175–190. 2 indexed citations
13.
Haukanes, Bjørn Ivar, Paul W. Doetsch, Lisbeth C. Olsen, et al.. (1990). Damage Specific Mammalian Endonucleases. PubMed. 53. 191–202. 3 indexed citations
14.
Sage, Évelyne, Trung Le Doan, Dag E. Helland, et al.. (1989). Oxidative DNA damage photo-induced by 3-carbethoxypsoralen and other furocoumarins. Journal of Molecular Biology. 209(2). 297–314. 53 indexed citations
15.
Haukanes, Bjørn Ivar, et al.. (1989). Mechanism of incision by an apurinic≤apyrimidinjc endonuclease present in human placenta. Nucleic Acids Research. 17(14). 5529–5536. 3 indexed citations
16.
Haukanes, Bjørn Ivar, Dag E. Helland, & Kjell Kleppe. (1989). Action of a mammalian AP-endonuclease on DNAs of defined sequences. Nucleic Acids Research. 17(4). 1493–1509. 10 indexed citations
17.
Haukanes, Bjørn Ivar, Dag E. 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. Nucleic Acids Research. 16(14). 6871–6882. 8 indexed citations
18.
Doetsch, Paul W., W. David Henner, Richard P. Cunningham, Jeffrey H. Toney, & Dag E. Helland. (1987). A Highly Conserved Endonuclease Activity Present in Escherichia Coli, Bovine, and Human Cells Recognizes Oxidative DNA Damage at Sites of Pyrimidines. Molecular and Cellular Biology. 7(1). 26–32. 19 indexed citations
19.
Olsen, Lisbeth C., Dag E. Helland, & Ian F. Pryme. (1987). Regulation of mammalian DNA repair enzymes during the cell cycle. European Journal of Cancer and Clinical Oncology. 23(11). 1784–1785. 1 indexed citations
20.
Helland, Dag E., Paul W. Doetsch, & William A. Haseltine. (1986). Substrate Specificity of a Mammalian DNA Repair Endonuclease That Recognizes Oxidative Base Damage. Molecular and Cellular Biology. 6(6). 1983–1990. 8 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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