/ UiT Norges arktiske universitet
 

Willassen, Nils P


Professor
Kjemi


Telefon: 776 44651
Mobil jobb / Mobil privat: /
Epost : nils-peder.willassen@uit.no
Kontor/besøksadresse : FPARK G 121 / Forskningsparken 3
Funksjon : Professor, Molekylære biosystemer, Norstruct

Arbeider i CRIStin

  • Bjerga, Gro Elin Kjæreng; Hjerde, Erik; De Santi, Concetta; Williamson, Adele Kim; Smalås, Arne O.; Willassen, Nils Peder; Altermark, Bjørn. High quality draft genome sequence of Streptomyces sp. strain AW19M42 isolated from a sea squirt in Northern Norway. Standards in Genomic Sciences 2014; Volum 9 (3). ISSN 1944-3277.s doi: 10.4056/sigs.5039801.
  • Hjerde, Erik; Pierechod, Marcin Miroslaw; Williamson, Adele Kim; Bjerga, Gro Elin Kjæreng; Willassen, Nils Peder; Smalås, Arne O.; Altermark, Bjørn. Draft Genome Sequence of the Actinomycete Rhodococcus sp. Strain AW25M09, Isolated from the Hadsel Fjord, Northern Norway. Genome Announcements 2013; Volum 1 (2). ISSN 2169-8287.s doi: 10.1128/genomeA.00055-13.
  • Purohit, Amit Anand; Johansen, Jostein a; Hansen, Hilde; Leiros, Hanna-Kirsti S.; Kashulin, Alexander; Karlsen, Christian; Smalås, Arne O.; Haugen, Peik; Willassen, Nils Peder. Presence of acyl-homoserine lactones in 57 members of the Vibrionaceae family. Journal of Applied Microbiology 2013; Volum 115 (3). ISSN 1364-5072.s 835 - 847.s doi: 10.1111/jam.12264.
  • Karlsen, Christian; Sørum, Henning; Willassen, Nils P; Åsbakk, Kjetil. Moritella viscosa bypasses Atlantic salmon epidermal keratocyte clearing activity and might use skin surfaces as a port of infection. Veterinary Microbiology 2012; Volum 154 (3-4). ISSN 0378-1135.s 353 - 362.s doi: 10.1016/j.vetmic.2011.07.024.
  • Kahlke, Tim; Goesmann, Alexander; Hjerde, Erik; Willassen, Nils Peder; Haugen, Peik. Unique core genomes of the bacterial family vibrionaceae: insights into niche adaptation and speciation. BMC Genomics 2012; Volum 13. ISSN 1471-2164.s doi: 10.1186/1471-2164-13-179.
  • Lindell, Kristoffer; Fahlgren, Anna; Hjerde, Erik; Willassen, Nils Peder; Fällman, Maria; Milton, Debra L. Lipopolysaccharide O-Antigen Prevents Phagocytosis of Vibrio anguillarum by Rainbow Trout (Oncorhynchus mykiss) Skin Epithelial Cells. PLoS ONE 2012; Volum 7 (5). ISSN 1932-6203.s doi: 10.1371/journal.pone.0037678.
  • Ahmad, Rafi; Hansen, Geir Åsmund; Hansen, Hilde; Hjerde, Erik; Pedersen, hege lynum; Paulsen, steinar; Nyrud, May Liss Julianne; Strauss, Anja; Willassen, Nils Peder; Haugen, Peik. Prediction, microarray and northern blot analyses identify new intergenic small RNAs in aliivibrio salmonicida. Journal of Molecular Microbiology and Biotechnology 2012; Volum 22 (6). ISSN 1464-1801.s 352 - 360.s doi: 10.1159/000345769.
  • Bjornsdottir, Bryndis; Hjerde, Erik; Bragason, Birkir Th.; Gudmundsdottir, Thorunn; Willassen, Nils Peder; Gudmundsdottir, Bjarnheidur. Identification of type VI secretion systems in Moritella viscosa. Veterinary Microbiology 2012; Volum 158 (3-4). ISSN 0378-1135.s 436 - 442.s doi: 10.1016/j.vetmic.2012.02.030.
  • Pedersen, Edvard; Willassen, Nils Peder; Bongo, Lars Ailo. GeStore – Incremental Computation for Metagenomic Pipelines. NIK: Norsk Informatikkonferanse 2012. ISSN 1892-0713.s 251 - 254.
  • Hansen, Geir Åsmund; Ahmad, Rafi; Hjerde, erik; Fenton, Christopher Graham; Willassen, Nils Peder; Haugen, Peik. Expression profiling reveals Spot 42 small RNA as a key regulator in the central metabolism of Aliivibrio salmonicida. BMC Genomics 2012; Volum 13. ISSN 1471-2164.s doi: 10.1186/1471-2164-13-37.
  • Bjelland, Ane Mohn; Sørum, Henning; Tegegne, Daget Ayana; Winther-Larsen, Hanne Cecilie; Willassen, Nils Peder; Hansen, Hilde. LitR of Vibrio salmonicida Is a Salinity-Sensitive Quorum-Sensing Regulator of Phenotypes Involved in Host Interactions and Virulence. Infection and Immunity 2012; Volum 80 (5). ISSN 0019-9567.s 1681 - 1689.s doi: 10.1128/IAI.06038-11.
  • Assefa, Netsanet Gizaw; Niiranen, Laila; Willassen, Nils P; Smalås, Arne O.; Moe, Elin. Thermal unfolding studies of cold adapted uracil-DNA N-glycosylase (UNG) from Atlantic cod (Gadus morhua). A comparative study with human UNG. Comparative Biochemistry and Physiology - Part B: Biochemistry & Molecular Biology 2012; Volum 161 (1). ISSN 1096-4959.s 60 - 68.s doi: 10.1016/j.cbpb.2011.09.007.
  • Weber, Barbara; Lindell, Kristoffer; El Qaidi, Samir; Hjerde, erik; Willassen, Nils P; Milton, Debra L. The phosphotransferase VanU represses expression of four qrr genes antagonizing VanO-mediated quorum-sensing regulation in Vibrio anguillarum. Microbiology 2011; Volum 157. ISSN 1350-0872.s 3324 - 3339.s doi: 10.1099/mic.0.051011-0.
  • Karlsen, Christian; Espelid, sigrun; Willassen, Nils P; Paulsen, steinar. Identification and cloning of immunogenic Aliivibrio salmonicida Pal-like protein present in profiled outer membrane and secreted subproteome. Diseases of Aquatic Organisms 2011; Volum 93 (3). ISSN 0177-5103.s 215 - 223.s doi: 10.3354/dao02302.
  • Pedersen, hege lynum; Ahmad, Rafi; Riise, EK; Leiros, Hanna-Kirsti S.; Hauglid, Stefan; Espelid, S; Brandsdal, Bjørn Olav; Leiros, Ingar; Willassen, Nils P; Haugen, Peik. Experimental and computational characterization of the ferric uptake regulator from Aliivibrio salmonicida (Vibrio salmonicida). Journal of Microbiology 2010; Volum 48 (2). ISSN 1225-8873.s 174 - 183.s doi: 10.1007/s12275-010-9199-5.
  • Pedersen, hege lynum; Hjerde, erik; Paulsen, steinar; Hansen, Hilde; Olsen, Lotte; Thode, Sunniva Katharina; Dos Santos, Marcos Tadeu; Paulssen, Ruth H; Willassen, Nils P; Haugen, Peik. Global responses of Aliivibrio salmonicida to hydrogen peroxide as revealed by microarray analysis. Marine Genomics 2010; Volum 3. ISSN 1874-7787.s 193 - 200.s doi: 10.1016/j.margen.2010.10.002.
  • Thorvaldsen, Steinar; Flå, Tor; Willassen, Nils P. DeltaProt: a software toolbox for comparative genomics. BMC Bioinformatics 2010; Volum 11. ISSN 1471-2105.s doi: 10.1186/1471-2105-11-573.
  • Ræder, Inger Lin Uttakleiv; Moe, Elin; Willassen, Nils Peder; Smalås, Arne Oskar; Leiros, Ingar. Structure of uracil-DNA N-glycosylase (UNG) from Vibrio cholerae: mapping temperature adaptation through structural and mutational analysis. Acta Crystallographica. Section F : Structural Biology and Crystallization Communications 2010; Volum 66. ISSN 1744-3091.s 130 - 136.s doi: 10.1107/S1744309109052063.
  • Ahmad, Rafi; Brandsdal, Bjørn Olav; Michaud-Soret, Isabelle; Willassen, Nils Peder. Ferric uptake regulator protein: Binding free energy calculations and per-residue free energy decomposition. Proteins: Structure, Function, and Genetics 2009; Volum 75 (2). ISSN 0887-3585.s 373 - 386.s doi: 10.1002/prot.22247.
  • Ahmad, Rafi; Hjerde, erik; Hansen, Geir Åsmund; Haugen, Peik; Willassen, Nils Peder. Prediction and Experimental Testing of Ferric Uptake Regulator Regulons in Vibrios. Journal of Molecular Microbiology and Biotechnology 2009; Volum 16 (3-4). ISSN 1464-1801.s 159 - 168.s doi: 10.1159/000128322.
  • Pedersen, hege lynum; Willassen, Nils Peder; Leiros, Ingar. The first structure of a cold-adapted superoxide dismutase (SOD): biochemical and structural characterization of iron SOD from Aliivibrio salmonicida. Acta Crystallographica. Section F : Structural Biology and Crystallization Communications 2009; Volum 65. ISSN 1744-3091.s 84 - 92.s doi: 10.1107/S1744309109001110.
  • Ahmad, Rafi; Hjerde, erik; Hansen, Geir Åsmund; Haugen, Peik; Willassen, Nils Peder. Prediction and Experimental Testing of Ferric Uptake Regulator Regulons in Vibrios.. Journal of Molecular Microbiology and Biotechnology 2008. ISSN 1464-1801.s doi: 10.1159/000128322.
  • Karlsen, Christian; Paulsen, Steinar Martin; Tunsjø, Hege Smith; Krinner, Simone; Sørum, Henning; Haugen, Peik; Willassen, Nils Peder. Motility and flagellin gene expression in the fish pathogen Vibrio salmonicida: Effects of salinity and temperature. Microbial Pathogenesis 2008; Volum 45. ISSN 0882-4010.s 258 - 264.
  • Niiranen, Laila Mirja; Altermark, Bjørn; Brandsdal, Bjørn Olav; Leiros, Hanna-Kirsti S.; Helland, Ronny; Smalås, Arne Oskar; Willassen, Nils Peder. Effects of salt on the kinetics and thermodynamic stability of endonuclease I from Vibrio salmonicida and Vibrio cholerae. The FEBS Journal 2008; Volum 275. ISSN 1742-464X.s 1593 - 1605.s doi: 10.1111/j.1742-4658.2008.06317.x.
  • Altermark, Bjørn; Helland, Ronny; Moe, Elin; Willassen, Nils Peder; Smalås, Arne Oskar. Environmental adaptation of endonuclease I from Vibrio salmonicida. Acta Crystallographica Section D: Biological Crystallography 2008; Volum 64. ISSN 0907-4449.s 368 - 376.
  • Ræder, Inger Lin Uttakleiv; Leiros, Ingar; Willassen, Nils Peder; Smalås, Arne Oskar; Moe, Elin. Uracil-DNA N-glycosylase (UNG) from the marine, psychrophilic bacterium Vibrio salmonicida shows cold adapted features A comparative analysis to Vibrio cholerae uracil-DNA N-glycosylase. Enzyme and microbial technology 2008; Volum 42 (7). ISSN 0141-0229.s 594 - 600.s doi: 10.1016/j.enzmictec.2008.02.005.
  • Altermark, Bjørn; Helland, Ronny; Moe, Elin; Willassen, Nils Peder; Smalås, Arne Oskar. Structural adaptation of endonuclease I from the cold-adapted and halophilic bacterium Vibrio salmonicida. Acta Crystallographica Section D: Biological Crystallography 2008; Volum 64. ISSN 0907-4449.s 368 - 376.s doi: 10.1107/S0907444908000097.
  • Ahmad, Rafi; Brandsdal, Bjørn Olav; Michaud-Soret, Isabelle; Willassen, Nils Peder. Ferric uptake regulator protein: Binding free energy calculations and per-residue free energy decomposition.. Proteins: Structure, Function, and Genetics 2008. ISSN 0887-3585.s doi: 10.1002/prot.22247.
  • Hjerde, erik; Lorentzen, marit sjo; Holden, MT; Seeger, K; Paulsen, steinar; Bason, N; Churcher, C; Harris, D; Norbertczak, H; Quail, MA; Sanders, S; Thurston, S; Parkhill, J; Willassen, Nils Peder; Thomson, NR. The Genome Sequence Of The Fish Pathogen Aliivibrio salmonicida Strain LFI1238 shows extensive evidence of gene decay.. BMC Genomics 2008; Volum 9. ISSN 1471-2164.s 616 - .s doi: 10.1186/1471-2164-9-616.
  • Karlsen, Christian; Paulsen, steinar; Tunsjø, HS; Krinner, Simone; Sørum, Henning; Haugen, Peik; Willassen, Nils Peder. Motility and flagellin gene expression in the fish pathogen Vibrio salmonicida: effects of salinity and temperature. Microbial Pathogenesis 2008; Volum 45 (4). ISSN 0882-4010.s 258 - 264.s doi: 10.1016/j.micpath.2008.06.002.
  • Altermark, Bjørn; Niiranen, Laila Mirja; Willassen, Nils Peder; Smalås, Arne Oskar; Moe, Elin. Comparative studies of endonuclease I from cold-adapted Vibrio salmonicida and mesophilic Vibrio cholerae. The FEBS Journal 2007; Volum 274. ISSN 1742-464X.s doi: 10.1111/j.1742-4658.2006.05580.x.
  • Ræder, Inger Liv Uttakleiv; Paulsen, Steinar; Smalås, Arne Oskar; Willassen, Nils Peder. Effect of fish skin mucus on the soluble proteome of Vibrio salmonicida analysed by 2-D gel electrophoresis and tandem mass spectrometry. Microbial Pathogenesis 2007; Volum 42. ISSN 0882-4010.s 36 - 45.s doi: 10.1016/j.micpath.2006.10.003.
  • Riise, Ellen Kristin; Lorentzen, marit sjo; Helland, Ronny; Smalås, Arne Oskar; Leiros, Hanna-Kirsti S.; Willassen, Nils Peder. The first structure of a cold-active catalase from Vibrio salmonicida at 1.96 angstrom reveals structural aspects of cold adaptation. Acta Crystallographica Section D: Biological Crystallography 2007; Volum 63. ISSN 0907-4449.s 135 - 148.s doi: 10.1107/S0907444906043812.
  • Altermark, Bjørn; Thorvaldsen, Steinar; Moe, Elin; Smalås, Arne Oskar; Willassen, Nils Peder. Sequence comparison and environmental adaptation of a bacterial endonuclease. Computational biology and chemistry (Print) 2007; Volum 31 (3). ISSN 1476-9271.s 163 - 172.s doi: 10.1016/j.compbiolchem.2007.03.003.
  • Thorvaldsen, Steinar; Hjerde, Erik; Fenton, Christopher Graham; Willassen, Nils Peder. Molecular characterization of cold adaptation based on ortholog protein sequences from Vibrionaceae species. Extremophiles 2007; Volum 11 (5). ISSN 1431-0651.s 719 - 732.s doi: 10.1007/s00792-007-0093-y.
  • Sælensminde, Gisle; Saelensminde, G; Halskau, Øyvind; Halskau, O; Helland, Ronny; Willassen, Nils Peder; Jonassen, I. Structure-dependent relationships between growth temperature of prokaryotes and the amino acid frequency in their proteins. Extremophiles 2007; Volum 11. ISSN 1431-0651.s 585 - 596.s doi: 10.1007/s00792-007-0072-3.
  • Niiranen, Laila Mirja; Espelid, Sigrun; Karlsen, Christian; Mustonen, M; Paulsen, Steinar; Heikinheimo, Pirkko a; Willassen, Nils Peder. Comparative expression study to increase the solubility of cold adapted Vibrio proteins in Escherichia coli.. Protein Expression and Purification 2007; Volum 52. ISSN 1046-5928.s 210 - 218.
  • Lorentzen, Marit Sjo; Moe, Elin; Jouve, HM; Willassen, Nils Peder. Cold adapted features of Vibrio salmonicida catalase: characterisation and comparison to the mesophilic counterpart from Proteus mirabilis. Extremophiles 2006; Volum 10 (5). ISSN 1431-0651.s 427 - 440.
  • Sørum, Henning; Willassen, Nils Peder; Johansen, Renate. Quorum sensing inhibitorer åpner for muligheter til å bekjempe sykdommer også i akvakultur. Norsk Veterinærtidsskrift 2006; Volum 118 (7). ISSN 0332-5741.s 458 - 461.
  • Adekoya, Olayiwola; Willassen, Nils Peder; Sylte, Ingebrigt. Molecular insight into pseudolysin inhibition using the MM-PBSA and LIE methods. Journal of Structural Biology 2006; Volum 153. ISSN 1047-8477.s 129 - 144.
  • Larsen, Atle Noralf; Moe, Elin; Helland, Ronny; Gjellesvik, Dag Rune; Willassen, Nils Peder. Characterization of a recombinantly expressed proteinase K-like enzyme from a psychrotrophic Serratia sp.. The FEBS Journal 2006; Volum 273 (1). ISSN 1742-464X.s 47 - 60.
  • Helland, Ronny; Larsen, Atle Noralf; Smalås, Arne Oskar; Willassen, Nils Peder. The 1.8 angstrom crystal structure of a proteinase K-like enzyme from a psychrotroph Serratia species. The FEBS Journal 2006; Volum 273. ISSN 1742-464X.
  • Adekoya, Olayiwola; Helland, Ronny; Willassen, Nils P; Sylte, Ingebrigt. Comparative sequence and structure analysis reveal features of cold adaptation of an enzyme in the thermolysin family. Proteins: Structure, Function, and Genetics 2006; Volum 62. ISSN 0887-3585.
  • Riise, Ellen Kristin; Lorentzen, Marit Sjo; Helland, Ronny; Willassen, Nils P. Crystallization and preliminary X-ray diffraction analysis of a cold-adapted catalase from Vibrio salmonicida. Acta Crystallographica. Section F : Structural Biology and Crystallization Communications 2006; Volum 62 (1). ISSN 1744-3091.
  • Altermark, Bjørn; Smalås, Arne Oskar; Willassen, Nils Peder; Helland, Ronny. The structure of Vibrio cholerae extracellular endonuclease I reveals the presence of a buried chloride ion. Acta Crystallographica Section D: Biological Crystallography 2006; Volum 62. ISSN 0907-4449.s 1387 - 1391.
  • Niiranen, Laila Mirja; Espelid, Sigrun; Karlsen, Christian; Mustonen, Milla; Paulsen, steinar; Heikinheimo, Pirkko; Willassen, Nils Peder. Comparative expression study to increase the solubility of cold adapted Vibrio proteins in Escherichia coli.. Protein Expression and Purification 2006. ISSN 1046-5928.
  • Johansen, R.; Nesse, Live L.; Gram, Lone; Willassen, Nils Peder; Sørum, Henning. Quorum sensing inhibitorer åpner for muligheter til å bekjempe sykdommer også i akvakultur. Norsk Veterinærtidsskrift 2006; Volum 118 (7). ISSN 0332-5741.s 460 - 464.
  • Adekoya, Olayiwola Adedotun; Willassen, Nils Peder; Sylte, Ingebrigt. The protein-protein interactions between SMPI and thermolysin studied by molecular dynamics and MM/PBSA calculations. Journal of Biomolecular Structure and Dynamics 2005; Volum 22 (5). ISSN 0739-1102.s 521 - 532.
  • Thorvaldsen, Steinar; Flå, Tor; Willassen, Nils Peder. Extracting Molecular Diversity between Populations through Sequence Alignments. (fulltekst) Lecture Notes in Computer Science 2005; Volum 3745. ISSN 0302-9743.s 317 - 328.s doi: 10.1007/11573067_32.
  • Moe, Elin; Leiros, Ingar; Riise, Ellen Kristin; Olufsen, Magne; Lanes, Olav; Smalås, Arne Oskar; Willassen, Nils Peder. Optimisation of the surface electrostatics as a strategy for cold adaptation of uracil-DNA N-glycosylase (UNG) from Atlantic cod (Gadus morhua).. Journal of Molecular Biology 2004; Volum 343. ISSN 0022-2836.s 1221 - 1230.
  • Leiros, Hanna-Kirsti S.; Leiros, Hanna Kirsti Schrøder; Brandsdal, Bjørn Olav; Andersen, Ole Andreas; Os, vibeke; Leiros, Ingar; Leiros, Ingar; Helland, Ronny; Otlewski, J.; Otlewski, Jacek; Willassen, Nils Peder; Smalås, Arne Oskar. Trypsin specificity as elucidated by LIE calculations, X-ray structures, and association constant measurements. Protein Science 2004; Volum 13. ISSN 0961-8368.s 1056 - 1070.
  • Moe, Elin; Leiros, Ingar; Riise, Ellen Kristin; Olufsen, Magne; Lanes, Olav; Smalås, Arne Oskar; Willassen, Nils Peder. Optimisation of the surface electrostatics as a strategy for cold adaptation of uracil-DNA N-glycosylase (UNG) from Atlantic cod (Gadus morhua).. Journal of Molecular Biology 2004; Volum 343 (5). ISSN 0022-2836.s 1221 - 1230.
  • Leiros, Ingar; Moe, Elin; Lanes, Olav; Smalås, Arne Oskar; Willassen, Nils Peder. The crystal structure of uracil-DNA-glycosylase from Atlantic cod (Gadus morhua) reveals cold-adaptation fetures.. Acta Crystallographica Section D: Biological Crystallography 2003; Volum 59. ISSN 0907-4449.s 1357 - 1365.
  • Leiros, Ingar; Moe, Elin; Lanes, Olav; Smalås, Arne Oskar; Willassen, Nils Peder. The crystal structure of uracil-DNA-glycosylase from Atlantic cod (Gadus morhua) reveals cold-adaptation fetures.. Acta Crystallographica Section D: Biological Crystallography 2003; Volum 59. ISSN 0907-4449.s 1357 - 1365.
  • Lanes, Olav; Leiros, Ingar; Smalås, Arne Oskar; Willassen, Nils Peder. Identification, cloning, and expression of uracil-DNA glycosylase from Atlantic cod (gadus morhua): charcterization and homology modeling of the cold-active catalytic domain.. Extremophiles 2002; Volum 6. ISSN 1431-0651.s 73 - 86.
  • Leiros, Ingar; Lanes, Olav; Sundheim, Ottar; Helland, Ronny; Smalås, Arne Oskar; Willassen, Nils Peder. Crystallization and preliminary X-ray diffraction analysis of a cold-adapted uracil-DNA glycosylase from Atlantic cod (Gadus morhua). Acta Crystallographica Section D: Biological Crystallography 2001; Volum 57. ISSN 0907-4449.s 1706 - 1708.
  • Leiros, Ingar; Lanes, Olav; Sundheim, Ottar; Helland, Ronny; Smalås, Arne O; Willassen, Nils P. Crystallization and preliminary X-ray diffraction analysis of a cold-adapted uracil-DNA glycosylase from Atlantic cod (Gadus morhua). Acta Crystallographica Section D: Biological Crystallography 2001; Volum 57 (11). ISSN 0907-4449.s 1706 - 1708.s doi: 10.1107/S0907444901013427.
  • Elde, Morten; Willassen, Nils Peder; Johansen, Steinar. Functional characteriztion of isoschizomeric His-Cys box homing endonucleases from Naegleria. European Journal of Biochemistry 2000; Volum 267. ISSN 0014-2956.s 7257 - 7266.
  • Smalås, Arne Oskar; Leiros, H. -K. S.; Os, V.; Willassen, Nils Peder. Cold adapted enzymes.. Biotechnology Annual Review 2000; Volum 6. ISSN 1387-2656.s 1 - 57.
  • Leiros, H. -K. S.; Willassen, Nils Peder; Smalås, Arne Oskar. Structural comparison of psychrophilic and mesophilic trypsins: elucidating the molecular basis of cold-adaptation.. European Journal of Biochemistry 2000; Volum 267 (4). ISSN 0014-2956.s 1039 - 1049.
  • Smalås, Arne Oskar; Leiros, Hanna-Kirsti S.; Os, V.; Willassen, Nils Peder. Cold adapted Enzymes. Biotechnology Annual Review 2000; Volum 6. ISSN 1387-2656.s 1 - 57.
  • Elde, Morten; Haugen, Peik; Willassen, Nils Peder; Johansen, Steinar. I-Nja I, a nuclear intron-encoded homing endonuclease from Naegleria, generates a pentanucleotide 3' cleavage-overhang within a 19 base pair partially symmetric DNA recognition site. European Journal of Biochemistry 1999; Volum 259. ISSN 0014-2956.s 281 - 288.
  • Helland, Ronny; Berglund, Gunnar Inge; Otlewski, Jacek; Apostoluk, Wlodek; Andersen, Ole Andreas; Willassen, Nils Peder; Smalås, Arne Oskar. High-resolution structures of three new trypsin-squash-inhibitor complexes: a detailed comparison with other trypsins and their complexes. Acta Crystallographica Section D: Biological Crystallography 1999; Volum 55. ISSN 0907-4449.s 139 - 148.
  • Leiros, H. -K. S.; Willassen, Nils Peder; Smalås, Arne Oskar. Residue determinants and sequence analysis of cold-adapted trypsins.. Extremophiles 1999; Volum 3. ISSN 1431-0651.s 205 - 219.
  • Leiros, Hanna-Kirsti S.; Willassen, Nils Peder; Smalås, Arne Oskar. Residue determinants and sequence analysis of cold-adapted trypsins. Extremophiles 1999; Volum 3. ISSN 1431-0651.s 205 - 219.
  • Leiros, Hanna-Kirsti S.; Willassen, Nils Peder; Smalås, Arne Oskar. Structural comparison of psychrophilic and mesophilic trypsins. Elucidating the molecular basis of cold-adaptation. European Journal of Biochemistry 1999; Volum 267. ISSN 0014-2956.s 1039 - 1049.
  • Berglund, G. I.; Outzen, H.; Smalås, Arne Oskar; Willassen, Nils Peder. Purification and Characterization of Pancreatic Elastase from the North Atlantic Salmon (Salmo salar).. Molecular Marine Biology and Biotechnology 1998; Volum 7. ISSN 1053-6426.s 105 - 114.
  • Schrøder, H. -K.; Willassen, Nils Peder; Smalås, Arne Oskar. Structure of a Non-Psychrophilic Trypsin from a Cold-Adapted Fish Species.. Acta Crystallographica Section D: Biological Crystallography 1998; Volum 54. ISSN 0907-4449.s 780 - 798.
  • Helland, Ronny; Leiros, Ingar; Berglund, Gunnar Inge; Willassen, Nils Peder; Smalås, Arne Oskar. The crystal structure of anionic salmon trypsin in complex with bovine pancreatic trypsin inhibitor.. European Journal of Biochemistry 1998; Volum 256 (2). ISSN 0014-2956.s 317 - 324.
  • Schrøder, Hanna-Kirsti; Willassen, Nils Peder; Smalås, Arne Oskar. Structure of a Non-Psychrophilic Trypsin From a Cold-Adapted Fish Species.. Acta Crystallographica Section D: Biological Crystallography 1998; Volum 54. ISSN 0907-4449.s 780 - 798.
  • Outzen, heidi; Berglund, Gunnar; Smalås, Arne Oskar; Willassen, Nils Peder. Temperature and pH Sensitivity of trypsins from Atlantic Salmon (Salmo salar) in Comparison with Bovine and Porcine Trypsin.. Comparative Biochemistry and Physiology - Part B: Biochemistry & Molecular Biology 1996; Volum 115. ISSN 1096-4959.s 33 - 45.
  • Berglund, Gunnar; Smalås, Arne Oskar; Hordvik, Asbjørn; Willassen, Nils Peder. The crystal structure of salmon pancreatic elastase at 1.6 Å resolution. Acta Crystallographica Section D: Biological Crystallography 1995; Volum 51. ISSN 0907-4449.s 925 - 937.
  • De Santi, Concetta; Altermark, Bjørn; Williamson, Adele Kim; De pascale, Donatella; Willassen, Nils Peder. Bioprospecting around Arctic islands: Marine bacteria as a rich source of biocatalysts and polyunsaturated fatty acids. The 6th international BIOPROSP Conference 2013-02-20 - 2013-02-22 2013.
  • Lærdahl, Jon Kristen; Nygård, Ståle; Jonassen, Inge; Hovig, Johannes Eivind; Petersen, Kjell; Drabløs, Finn; Willassen, Nils Peder; Våge, Dag Inge. The national technology platform for bioinformatics.. NBS - Contact Meeting 2013 2013-01-31 - 2013-02-03 2013.
  • Nguyen, Tan Thi; Robertsen, Espen; Willassen, Nils Peder; Lanes, Olav; Landfald, Bjarne. Viral enzymes from marine sediment. The 6th international BIOPROSP Conference on Marine Bioprospecting from cold marine environment 2013-02-20 - 2013-02-22 2013.
  • Pedersen, hege lynum; Altermark, Bjørn; Hjerde, Erik; Williamson, Adele Kim; Pierechod, Marcin Miroslaw; Bjerga, Gro Elin Kjæreng; De Santi, Concetta; Willassen, Nils Peder; Smalås, Arne O.. Genome Sequencing of Bacteria Isolated from the Arctic Marine Environment. The 6th international BIOPROSP Conference 2013-02-20 - 2013-02-22 2013.
  • Williamson, Adele Kim; Altermark, Bjørn; Pierechod, Marcin Miroslaw; Bjerga, Gro Elin Kjæreng; Pedersen, hege lynum; De Santi, Concetta; Willassen, Nils Peder; Smalås, Arne O.. Hot Investigations into Cold-Sourced Enzymes. The 6th international BIOPROSP Conference 2013-02-20 - 2013-02-22 2013.
  • De Santi, Concetta; Tedesco, P; Altermark, Bjørn; Willassen, Nils Peder; De pascale, Donatella. Marine Biotechnology in the Arctic context: new hydrolytic enzymes for challenging reactions. Marine Microbiology & Biotechnology:Biodiscovery, Biodiversity and Bioremediation 2012 2012-11-14 - 2012-11-16 2012.
  • Pedersen, Edvard; Bongo, Lars Ailo; Willassen, Nils Peder. GeStore - Incremental Computation for Metagenomic Pipelines. 2012.
  • Pedersen, Edvard; Willassen, Nils Peder; Bongo, Lars Ailo. GeStore - Incremental Computations for Metagenomic Pipelines. Norsk Bioinformatikk Forum 2012-10-18 - 2012-10-19 2012.
  • Pedersen, Edvard; Willassen, Nils Peder; Bongo, Lars Ailo. GeStore - Incremental Computations for Metagenomic Pipelines. The 11th Annual Meeting on High Performance Computing and Infrastructure in Norway - NOTUR 2012 2012-06-14 - 2012-06-15 2012.
  • Pedersen, Edvard; Willassen, Nils Peder; Bongo, Lars Ailo. GeStore – Incremental Computation for Metagenomic Pipelines. Norsk informatikkonferanse NIK 2012 2012-11-19 - 2012-11-21 2012.
  • Thorvaldsen, Steinar; Flå, Tor; Willassen, Nils P. Comparative bioinformatics and statistical inference of extremophile proteins. Bioinformatics 2011 (fulltekst) (omtale) 2011-05-10 - 2011-05-12 2011.
  • Altermark, Bjørn; Pierechod, Marcin Miroslaw; Williamson, Adele Kim; Bjerga, Gro Elin Kjæreng; Høgås, Stian Bjørn; Jørgensen, Trond Ø.; Willassen, Nils Peder; Smalås, Arne O.. Molecules For The Future “Novel enzyme activities from environmental libraries - MARZymes”. The 5th international Conference on Marine Bioprospecting. BIOPROSP 2011 2011-02-23 - 2011-02-25 2011.
  • Thorvaldsen, Steinar; Kahlke, Tim; Willassen, Nils P. COLD ADAPTATION OF THE VIBRIONACEAE MEMBRANE PROTEINS. 2011 ISBN 9788415045076.s 182 - .
  • Thorvaldsen, Steinar; Kahlke, Tim; Willassen, Nils P. COLD ADAPTATION OF THE VIBRIONACEAE MEMBRANE PROTEINS. The Fourth Conference on the Biology of Vibrios 2011-11-01 - 2011-11-04 2011.
  • Thorvaldsen, Steinar; Flå, Tor; Willassen, Nils Peder. Some statistical methods in the comparative genomics of environmental adaptation. Bioprosp 2009 (fulltekst) (omtale) 2009-02-24 - 2009-02-25 2009.
  • Assefa, Netsanet Gizaw; Moe, Elin; Smalås, Arne Oskar; Willassen, Nils Peder. Thermodynamic characterization of uracil-DNA N-glycosylase (UNG) from Atlantic cod (Gadus morhua). The FEBS Journal 2008; Volum 275. ISSN 1742-464X.s 188 - 188.
  • Thorvaldsen, Steinar; Flå, Tor; Willassen, Nils Peder. DeltaProt: Molecular comparison of proteins based on sequence alignments. ISBRA 2007, Third International Symposium (fulltekst) (prosjekt) 2007-05-07 - 2007-05-10 2007.
  • Thorvaldsen, Steinar; Willassen, Nils Peder; Flå, Tor. DeltaProt: Molecular comparison of proteins. Det 14. norske statistikermøtet (omtale) 2007-06-19 - 2007-06-21 2007.
  • Thorvaldsen, Steinar; Willassen, Nils Peder; Flå, Tor. DeltaProt: Toolbox for Molecular Comparison of Proteins based on Sequence Alignments. 5th European Conference on Computational Biology. ECCB2006 (omtale) 2007-01-21 - 2007-01-24 2007.
  • Paulsen, steinar; Uttakleiv Ræder, Inger Lin; Hjerde, Erik; Willassen, Nils Peder. The Vibrio salmonicda genome project.. The Biology of Vibrios 2006-11-07 - 2006-11-08 2006.
  • Thorvaldsen, Steinar; Flå, Tor; Willassen, Nils Peder. Statistical and bioinformatical analyses of protein sequences from cold marine environments. A comparative study of alignments.. (data) 2006 ISBN 82-92461-60-4.
  • Ræder, Inger Lin Uttakleiv; Leiros, Ingar; Willassen, Nils Peder; Smalås, Arne Oskar; Moe, Elin. Uracil-DNA N-glycosylase (UNG) from the marine psychrophilic bacterium Vibrio salmonicida shows cold adapted features. BIOPROSP 2006 2006-10-11 - 2006-10-12 2006.
  • Khan, Mahmud Tareq Hassan; Adekoya, Olayiwola Adedotun; Lorentzen, marit sjo; Willassen, Nils Peder; Smalås, Arne Oskar; Sylte, Ingebrigt. Molecular features and inhibition of the thermolysin family of enzymes. Open day 2006. PhD-school in Molecular and Structural Biology 2006-11-15 - 2006.
  • Altermark, Bjørn; Helland, Ronny; Niiranen, Laila Mirja; Moe, Elin; Brandsdal, Bjørn Olav; Smalås, Arne Oskar; Willassen, Nils Peder. Optimum enzymatic activity of endonuclease I from Vibrio salmonicida and Vibrio cholerae correlateswith the bacterial growth habitat. BIOPROSP 2006 2006-10-11 - 2006-10-12 2006.
  • Adekoya, Olayiwola Adedotun; Helland, Ronny; Willassen, Nils Peder; Sylte, Ingebrigt. Structural determinants for a cold adapted enzyme in the thermolysin family. The Norwegian Biochemical Society 41st Contact meeting 2005-01-13 - 2005-01-16 2005.
  • Helland, Ronny; Larsen, Atle Noralf; Willassen, Nils Peder. Structural basis for substrate specificity in two enzymes in the Proteinase K family. 1st ESF and MAX-INF2 Course on Membrane Proteins. The rocky road from gene to structure. Oeiras, Portugal 2005-09-19 - 2005-09-25 2005.
  • Yang, Nannan; Espelid, sigrun; Willassen, Nils Peder; Smalås, Arne Oskar. Hypothetical proteins from Vibrio salmonicida genome: strategies for target selection, cloning and expression. . The Norwegian Biochemical Society 41st Contact meeting 2005-01-13 - 2005-01-16 2005.
  • Ræder, Inger Liv Uttakleiv; Pedersen, hege lynum; Paulsen, steinar; Jørgensen, Trond; Willassen, Nils Peder; Smalås, Arne Oskar. Proteomic studies of Vibrio Salmonicida. The Norwegian Biochemical Society 41st Contact meeting 2005-01-13 - 2005-01-16 2005.
  • Fenton, christopher graham; Ahmad, Rafi; Sælensminde, Gisle; Willassen, Nils Peder. Envision Software Package for the Concerted Study of Biological Data. . The Norwegian Biochemical Society 41st Contact meeting, Tromsø 2005-01-13 - 2005-01-16 2005.
  • Lorentzen, marit sjo; Hjerde, erik; Fenton, Chris; Willassen, Nils Peder. Sequencing and annotation of two cryptic plasmids from the fish pathogen Vibrio salmonicida. The Norwegian Biochemical Society 41st Contact meeting 2005-01-13 - 2005-01-16 2005.
  • Niiranen, Laila; Riise, Ellen Kristine; Espelid, sigrun; Heikenheimo, Pirrko; Smalås, Arne Oskar; Willassen, Nils Peder. Expression screen of three Vibrio salmonicida proteins. The Norwegian Biochemical Society 41st Contact meeting 2005-01-13 - 2005-01-16 2005.
  • Smith Tunsjø, Hege; Mikkelsen, Helene; Paulsen, steinar; L'Abée-Lund, Trine; Willassen, Nils Peder; Sørum, Henning. Adaptive features in cold water Vibrio pathogens. The Biology of Vibrios 2005-11-07 - 2005-11-08 2005.
  • Hansen, Geir Å; Krentz, Corinne; Ahmad, Rafi; Haugen, Peik; Paulsen, steinar; Willassen, Nils Peder. Identification of small RNAs involved in iron homeostasis and quorum sensing in Vibrio salmonicida and V. fischeri. NORSTRUCT Minisymposium 2005-11-29 - 2005-11-30 2005.
  • Lorentzen, marit sjo; Moe, Elin; Willassen, Nils Peder. Vibrio salmonicida catalase shows cold-adapted features. . The Norwegian Biochemical Society 41st Contact meeting 2005-01-13 - 2005-01-16 2005.
  • Altermark, Bjørn; Moe, Elin; Smalås, Arne Oskar; Willassen, Nils Peder. Are Lysines important for cold adaptation of Vibrio salmonicida nuclease?. BIOPROSP 2004 2004-10-13 - 2004-10-14 2004.
  • Denstadli, Vegard; Eijsink, Vincent; Willassen, Nils Peder; Storebakken, Trond. Effect of phytic acid (IP6) on the activity of bovine trypsin and trypsin from Atlantic salmon (Salmo salar). 11th International Symposium on Nutrition and Feeding in Fish 2004-05-02 - 2004-05-07 2004.
  • Moe, Elin; Leiros, Ingar; Smalås, Arne Oskar; Willassen, Nils Peder. Screening for cold adapted enzymes. BIOPROSP 2004 2004-10-13 - 2004-10-14 2004.
  • Solem, Stein Tore; Muller, Anita; Willassen, Nils Peder; Smalås, Arne Oskar; Mjaaland, Siri; Jørgensen, Trond Ø.. Molecular aspects of antigenic determinants in the ISAV hemagglutinin. NORSTRUCT-hurtigruteseminar 2004-12-01 - 2004-12-03 2004.
  • Larsen, Atle Noralf; Helland, Ronny; Gjellesvik, Dag Rune; Willassen, Nils Peder. Structural basis for S1-S4 specificity in two enzymes of the proteinase K family. Bioprosp 2004 2004-10-13 - 2004-10-14 2004.
  • Olufsen, Magne; Moe, Elin; Brandsdal, Bjørn Olav; Willassen, Nils Peder; Smalås, Arne Oskar. STRUCTURAL AND ENERGETIC ASPECTS OF PROTEIN DNA-RECOGNITION. hurtigrute seminar 2003-12-01 - 2003-12-02 2003.
  • Helland, Ronny; Czapinska, Honorata; Otlewski, Jacek; Willassen, Nils Peder; Smalås, Arne Oskar. Primary and secondary specificity of serine proteinases of the chymotrypsin family.. Strategies in Macromolecular Structure Determination at 3rd Generation Synchrotron Sources (EMBO practical course) 2003-06-17 - 2003.
  • Thorvaldsen, Steinar; Hjerde, Erik; Willassen, Nils Peder; Fenton, Chris; Flå, Tor. Celsius: A Database of Temperature Adapted Protein Structures.. ECCB'2003 European Conference on Computational Biology (fulltekst) 2003-09-27 - 2003-09-30 2003.
  • Mekonnen, Seble Merid; Olufsen, Magne; Helland, Ronny; Brandsdal, Bjørn Olav; Willassen, Nils Peder; Smalås, Arne Oskar. Residue determinants for substrate specificity from computational analysis and modeling of protein-inhibitor complexes of the subfamily S8A subtilisin-like family of serine proteinases. The 4th European Work Shop in Drug Design (4EWDD) 2003-05-25 - 2003-06-01 2003.
  • Helland, Ronny; Adekoya, Olayiwola; Mekonnen, Seble Merid; Gjellesvik, Dag Rune; Edvardsen, Øyvind; Høgda, Kjell Arild; Grøttum, Karl Johan; Sylte, Ingebrigt; Smalås, Arne Oskar; Willassen, Nils Peder. Determination of Molecular Descriptors from Analysis of Sequence and Genome Data.. Bioinformatics 2002 2002-04-04 - 2002-04-07 2002.
  • Helland, Ronny; Adekoya, Olayiwola; Mekonnen, Seble Merid; Gjellesvik, Dag Rune; Edvardsen, Øyvind; Høgda, Kjell Arild; Grøttum, Karl Johan; Sylte, Ingebrigt; Smalås, Arne Oskar; Willassen, Nils Peder. Determination of Molecular Descriptors from Analysis of Sequence and Genome Data.. Functional Genomics in Tromsø 2001-10-17 - 2001-10-18 2001.
  • Leiros, H. -K. S.; Willassen, Nils Peder; Smalås, Arne Oskar. Trypsins from Fish: What is so special?. 9th Annual Biotechnology Center Sympositum 1998-11-12 - 1998.
  • Schrøder, H. -K.; Smalås, Arne Oskar; Willassen, Nils Peder. Structure-Function Relation Studies of Trypsin from Cold-Adapted Species.. Proteins, Gordon Research Conference 1997-06-15 - 1997-06-20 1997.
  • Schrøder, H. -K.; Willassen, Nils Peder; Smalås, Arne Oskar. Crystal Structure of a New, Non-Psychrophilic Trypsin from a Cold-Adapted Fish Species.. 3rd Coastal Biotechnology Symposium and 8th Annual Biotechnology Center Symposium 1997-09-09 - 1997-09-10 1997.
  • Schrøder, H. -K.; Willassen, Nils Peder; Smalås, Arne Oskar. Crystal Structure of a Non-Psychrophilic Trypsin from a Cold-Adapted Fish Species.. Norsk Kjemisk Selskaps Landsmøte 1997-10-09 - 1997-10-10 1997.
  • Helland, Ronny; Berglund, Gunnar; Hansen, Lars Kr; Heimstad, Eldbjørg S.; Hordvik, Asbjørn; Leiros, Ingar; Leiros, Hanna-Kirsti S.; Os, vibeke; Outzen, Heidi; Willassen, Nils Peder; Smalås, Arne Oskar. Structure-Function Relation Studies of Enzymes from Cold Adapted Species.. Higher European Research Course for Users of Large Experimental Systems (HERCULES) 1995-02-26 - 1995-04-07 1995.



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