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2020
1 Ásgeirsson, Bjarni; Markússon, Sigurbjörn; Hlynsdóttir, Sigríður S.; Helland, Ronny; Hjörleifsson, Jens G..
X-ray crystal structure of Vibrio alkaline phosphatase with the non-competitive inhibitor cyclohexylamine. Biochemistry and Biophysics Reports 2020 ;Volum 24. s. -
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2 Hjörleifsson, Jens Guðmundur; Helland, Ronny; Magnusdottir, Manuela; Ásgeirsson, Bjarni.
The high catalytic rate of the cold-active Vibrio alkaline phosphatase requires a hydrogen bonding network involving a large interface loop. FEBS Open Bio 2020 ;Volum 11.(1) s. 173-184
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3 Mazurkewich, Scott; Helland, Ronny; Mackenzie, Alasdair; Eijsink, Vincent; Pope, Phillip Byron; Brändén, Gisela; Larsbrink, Johan.
Structural insights of the enzymes from the chitin utilization locus of Flavobacterium johnsoniae. Scientific Reports 2020 s. -
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2019
4 Gurung, Man Kumari; Altermark, Bjørn; Helland, Ronny; Smalås, Arne O.; Ræder, Inger Lin Uttakleiv.
Features and structure of a cold active N-acetylneuraminate lyase. PLOS ONE 2019 ;Volum 14.(6) s. 1-27
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5 Helland, Ronny; Bjørkeng, Eva katrin; Rothweiler, Ulli; Sydnes, Magne Olav; Pampanin, Daniela Maria.
The crystal structure of haemoglobin from Atlantic cod. Acta Crystallographica. Section F : Structural Biology and Crystallization Communications 2019 ;Volum F75.(8) s. 537-542
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2017
6 De Santi, Concetta; Gani, Osman A. B. S. M.; Helland, Ronny; Williamson, Adele Kim.
Structural insight into a CE15 esterase from the marine bacterial metagenome. Scientific Reports 2017 ;Volum 7:17278. s. 1-10
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7 Gurung, Man Kumari; Berg, Tor Olav; Halsør, Marie-Josée Haglund; Altermark, Bjørn; Leiros, Ingar; Helland, Ronny; Rothweiler, Ulli; Smalås, Arne O.; Ræder, Inger Lin Uttakleiv.
Efficient production of sialic acids- Using enzymes for biomass conversion. BIOPROSP2017; 2017-03-08 - 2017-03-10
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8 Gurung, Man Kumari; Berg, Tor Olav; Halsør, Marie-Josée Haglund; Altermark, Bjørn; Leiros, Ingar; Helland, Ronny; Rothweiler, Ulli; Smalås, Arne O.; Ræder, Inger Lin Uttakleiv.
Efficient production of sialic acids- Using enzymes for biomass conversion. Eurocarb 2017; 2017-07-02 - 2017-07-06
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2016
9 Berg, Tor Olav; Altermark, Bjørn; Leiros, Ingar; Helland, Ronny; Ræder, Inger Lin Uttakleiv.
Production of sialic acids and derivatives by enzyme catalysis. NBS Contact meeting 2016; 2016-01-21 - 2016-01-23
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10 Berg, Tor Olav; Halsør, Marie-Josée Haglund; Gurung, Man Kumari; Altermark, Bjørn; Leiros, Ingar; Rothweiler, Ulli; Helland, Ronny; Smalås, Arne O.; Ræder, Inger Lin Uttakleiv.
From marine rest raw materials to sialic acids: Using enzymes for biomass conversion. Frontiers in Sialic Acid Research; 2016-04-23 - 2016-04-25
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11 Seppola, Marit; Bakkemo, Kathrine Ryvold; Mikkelsen, Helene V.; Myrnes, Bjørnar; Helland, Ronny; Irwin, David; Nilsen, Inge Waller.
Multiple specialised goose-type lysozymes potentially compensate for an exceptional lack of chickentype lysozymes in Atlantic cod. Scientific Reports 2016 ;Volum 6. s. -
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2015
12 Berg, Tor Olav; Altermark, Bjørn; Leiros, Ingar; Helland, Ronny; Ræder, Inger Lin Uttakleiv.
Biocatalytical production of sialic acids and derivatives. Annual BioStruct Conference 2015; 2015-08-27 - 2015-08-30
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13 Christopeit, Tony; Carlsen, Trine Josefine Olsen; Helland, Ronny; Leiros, Hanna-Kirsti S..
Discovery of novel inhibitor scaffolds against the metallo-β-lactamase VIM-2 by surface plasmon resonance (SPR) based fragment screening. Journal of Medicinal Chemistry 2015 ;Volum 58.(21) s. 8671-8682
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14 Lysvand, Hilde; Helland, Ronny; Hagen, Lars; Slupphaug, Geir; Iversen, Ole-Jan.
Psoriasis pathogenesis – Pso p27 constitutes a compact structure forming large aggregates. Biochemistry and Biophysics Reports 2015 ;Volum 2. s. 132-136
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15 Piotrowski, Yvonne; Assefa, Netsanet Gizaw; Helland, Ronny; Johannessen, Kirsti Merete; Willassen, Nils Peder; Larsen, Atle Noralf.
Enzymes from the Arctic - The cold gold. BioProsp 2015; 2015-02-18 - 2015-02-20
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2014
16 Forsberg, Zarah; Mackenzie, Alasdair; Sørlie, Morten; Røhr, Åsmund Kjendseth; Helland, Ronny; Arvai, Andrew S.; Vaaje-Kolstad, Gustav; Eijsink, Vincent.
Structural and functional characterization of a conserved pair of bacterial cellulose-oxidizing lytic polysaccharide monooxygenases. Proceedings of the National Academy of Sciences of the United States of America 2014 ;Volum 111.(23) s. 8446-8451
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17 Forsberg, Zarah; Mackenzie, Alasdair; Sørlie, Morten; Røhr, Åsmund Kjendseth; Helland, Ronny; Vaaje-Kolstad, Gustav; Eijsink, Vincent.
Characterization of cellulose-active lytic polysaccharide monooxygenases with complementary activities. Biokjemisk Kontaktmøte 2014; 2014-01-23 - 2014-01-26
UiO UiT NMBU Untitled
 
18 Johnson, Kenneth; Ve, Thomas; Larsen, Øivind; Pedersen, Rolf B.; Lillehaug, Johan R.; Jensen, Harald B; Helland, Ronny; Karlsen, Odd Andre.
CorA is a copper repressible surface-associated copper(I)-binding protein produced in Methylomicrobium album BG8. PLOS ONE 2014 ;Volum 9.(2:e87750)
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19 Piotrowski, Yvonne; Assefa, Netsanet Gizaw; Helland, Ronny; Johannessen, Kirsti Merete; Landfald, Bjarne; Smalås, Arne O.; Jørgensen, Trond Ø.; Willassen, Nils Peder; Larsen, Atle Noralf.
Enzymes from the Arctic - The cold gold. DNA polymerases: Biology, Diseases and Biomedical Applications; 2014-08-31 - 2014-09-04
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20 Ræder, Inger Lin Uttakleiv; Altermark, Bjørn; Gurung, Man Kumari; Helland, Ronny; Smalås, Arne O..
Sialic acids in marine bacteria. Microbial Glycobiology; 2014-06-08 - 2014-06-13
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2013
21 Cazamea-Catalan, D.; Magnanou, E.; Helland, Ronny; Besseau, L.; Boeuf, Gilles; Falcòn, Jack; Jørgensen, Even Hjalmar.
Unique arylalkylamine N-acetyltransferase-2 polymorphism in salmonids and profound variations in thermal stability and catalytic efficiency conferred by two residues. Journal of Experimental Biology 2013 ;Volum 216.(10) s. 1938-1948
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22 Gurung, Man Kumari; Altermark, Bjørn; Ræder, Inger Lin Uttakleiv; Helland, Ronny; Smalås, Arne O..
Features and structure of a sialic acid aldolase from Aliivibrio salmonicida. BIOPROSP 2013; 2013-02-20 - 2013-02-22
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23 Ræder, Inger Lin Uttakleiv; Gurung, Man Kumari; Altermark, Bjørn; Berg, Tor Olav; Helland, Ronny; Smalås, Arne O..
Sialic acid biosynthesis in marine bacteria. BIOPROSP 2013; 2013-02-20 - 2013-02-22
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2012
24 D. Cazamèa-Catalan, Damien; Magnanou, Elodie; Helland, Ronny; Vanegas, Gilmer; Besseau, Laurence; Boeuf, Gilles; Paulin, Charles-Hubert; Jørgensen, Even Hjalmar; Falcòn, Jack.
Functional diversity of Teleost arylalkylamine N-acetyltransferase-2: is the timezyme evolution driven by habitat temperature?. Molecular Ecology 2012 ;Volum 21.(20) s. 5027-5041
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25 Lagos, Leidy; Iliev, Dimitar Borisov; Helland, Ronny; Rosemblatt, Mario; Jørgensen, Jorunn B.
CD40L-A costimulatory molecule involved in the maturation of antigen presenting cells in Atlantic salmon (Salmo salar). Developmental and Comparative Immunology 2012 ;Volum 38.(3) s. 416-430
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26 Ve, Thomas; Mathisen, Karina; Helland, Ronny; Karlsen, Odd Andre; Fjellbirkeland, Anne; Røhr, Åsmund Kjendseth; Andersson, K. Kristoffer; Pedersen, Rolf B.; Lillehaug, Johan R.; Jensen, Harald B.
The Methylococcus capsulatus (Bath) Secreted Protein, MopE*, Binds Both Reduced and Oxidized Copper. PLOS ONE 2012 ;Volum 7.(8) s. -
NTNU UiB UiO UiT Untitled
 
2010
27 Kyomuhendo, Peter; Myrnes, Bjørnar; Brandsdal, Bjørn Olav; Smalås, Arne; Nilsen, Inge Waller; Helland, Ronny.
Thermodynamics and structure of a salmon cold active goose-type lysozyme. Comparative Biochemistry and Physiology - Part B: Biochemistry & Molecular Biology 2010 ;Volum 156.(4) s. 254-263
NOFIMA UiT Untitled
 
28 Olsen, Odd-Arne; Johansen, Wenche; Emilsen, Sidsel; Belova, Tatiana; Liang, Zhe; Smalås, Arne; Johnson, Ken; Helland, Ronny; Schrøder Leiros, Hanna-Kirsti; Jakobsen, Kjetill S.; Shalchian-Tabrizi, Kamran; Quatrano, Ralph; Cove, David; Perroud, Pierre-Francois; Dutcher, Susan; Wilson, Robert; Wilson, Robert.
Structural & functional significance of the DEK1 phytocalpain during land plant evolution from green algae. NBS kontaktmøte; 2010-01-14 - 2010-01-17
HINN UiO UiT NMBU Untitled
 
2009
29 Helland, Ronny; Larsen, Renate Lie; Finstad, Solrun; Kyomuhendo, Peter; Larsen, Atle Noralf.
Crystal structures of g-type lysozyme from Atlantic cod shed new light on substrate binding and the catalytic mechanism. Cellular and Molecular Life Sciences (CMLS) 2009 ;Volum 66.(15) s. 2585-2598
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30 Helland, Ronny; Larsen, Renate Lie; Åsgeirsson, Bjarni.
The 1.4 angstrom crystal structure of the large and cold-active Vibrio sp. alkaline phosphatase. Biochimica et Biophysica Acta - Proteins and Proteomics 2009 ;Volum 1794.(2) s. 297-308
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31 Szlachcic, Anna; Zakrzewska, M; Krowarsch, D; Os, vibeke; Helland, Ronny; Smalås, Arne Oskar; Otlewski, J.
Structure of a highly stable mutant of human fibroblast growth factor 1. Acta Crystallographica Section D: Biological Crystallography 2009 ;Volum 65. s. 67-73
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2008
32 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. s. 368-376
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33 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. s. 368-376
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34 Helland, Ronny; Fjellbirkeland, Anne; Karlsen, Odd-Arne; Lillehaug, Johan Richard; Jensen, Harald; Ve, Thomas.
An oxidized tryptophan facilitates copper binding in Methylococcus capsulatus-secreted protein MopE. Journal of Biological Chemistry 2008 ;Volum 283.(20) s. 13897-13904
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35 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. s. 1593-1605
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2007
36 Larsen, Atle Noralf; Helland, Ronny; Svineng, Gunbjørg; Jørgensen, Trond Ø..
Identification, cloning and recombinant expression of a goose-type lysozyme from Atlantic cod (Gadus Morhua). The 7th Nordic symposium on Fish Immunology; 2007-06-18 - 2007-06-22
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37 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. s. 135-148
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38 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. s. 585-596
NORCE UiB UiT Untitled
 
2006
39 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 Bioinformatics 2006 ;Volum 62.
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40 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
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41 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. s. 1387-1391
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42 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.
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43 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) s. 47-60
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44 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)
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2005
45 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
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46 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
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2004
47 Czapinska, Honorata; Helland, Ronny; Smalås, Arne Oskar; Otlewski, Jacek.
Crystal Structures of Five Bovine Chymotrypsin Complexes with P1 BPTI Variants. Journal of Molecular Biology (JMB) 2004 ;Volum 344.(4) s. 1005-1020
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48 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. s. 1056-1070
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49 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
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2003
50 Heikinheimo, Pirkko a; Helland, Ronny; Frostad, Hilde Monica RS; Hansen, Gaute; Evjen, Gry; Berg, Thomas; Michalski, J C; McSweeney, Sean; Nilssen, Øivind; Tollersrud, Ole Kristian; Hough, Edward.
Structural and Functional Characterisation of mutations causing lysosomal a-mannosidosis. 21st European Crystallographic Meeting; 2003-08-24 - 2003-08-29
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