Universitetet i Tromsø - Startsida Universitetet i Tromsø - Startsida
 
Medisinsk biologi


Johansen, Steinar Daae

Professor
Medisinsk biologi

Funksjon
Professor

Telefon
776 45367

Epost

Kontor/besøksadresse
Medisin og Helsefag
MH L9.249
SDJ.JPG

Verv

Nestleder - Institutt for Medisinsk Biologi, Helsefakultetet, Universitetet i Tromsø

Professor II - Marin Genomikk, FBA, Universitetet i Nordland


Forskningsinteresser

Struktur, funksjon og biologi til arvestoffet RNA, og dets betydning innen molekylær medisin og det marine miljø.

Utvikling av teknologi innen transkriptomikk og genomikk basert på dybdesekvensering.


Forskningsprosjekter
  • Regulatorisk RNA nettverk i tumorer og sykdom (brystkreft)
  • Genom/transkriptom i koralldyr (ColdWaterCoralSeq; Lophelia, Urticina, Hormathia, Bolocera)
  • Genom/transkriptom i marine fisk (Atlantisk torsk, Atlantisk kveite)
  • Genom/transkriptom i myxomyceter (Didymium, Diderma)
  • Struktur og funksjon av katalytiske RNA (gruppe I ribozymer, LC ribozymer) 
 
Forskningsgruppe for RNA og molekylær patologi (RAMP)
 
Unik teknologi innen RNA forskning - 2011
 
NextGen Sequencing Facility

Andre publikasjoner

Publications 

Papers accepted or in review:

Sea anemones possess dynamic mitogenome structures.
Emblem Å, Okkenhaug S, Weiss ES, Denver DR, Karlsen BO, Moum T, Johansen SD. (2013).
In review (MPE-S-13-00544). 
 
Mitogenome sequence variation in migratory and stationary ecotypes of North-east Atlantic cod.
Karlsen BO, Emblem Å, Jørgensen TE, Klingan K, Nordeide JT, Moum T, Johansen SD. (2013).
In review (MARGEN-D-13-00064).

 

2013

Genomic divergence between the migratory and stationary ecotypes of Atlantic cod.
Karlsen BO, Klingan K, Emblem Å, Jørgensen TE, Jueterbock A, Furmanek T, Hoarau G, Johansen SD, Nordeide JT, Moum T. (2013).
Mol Ecol. 22: 5098-5111. (IF 6.3; Nivå 2).
 
Impact of the Tumor Necrosis Factor Receptor-Associated Protein 1 (Trap1) on Renal DNaseI Shutdown and on Progression of Murine and Human Lupus Nephritis.
Fismen S, Thiyagarajan D, Seredkina N, Nielsen H, Jacobsen S, Elung-Jensen T, Kamper AL, Johansen SD, Mortensen ES, Rekvig OP. (2013).
Am J Pathol. 182: 688-700. (IF 5.3; Nivå 2).
 
Performance comparison of digital microRNA profiling technologies applied to human breast cancer cell lines.
Knutsen E, Fiskaa T, Ursvik A, Jørgensen TE, Perander M, Lund E, Seternes OM, Johansen SD, Andreassen M. (2013).
PLoS One. 8: e75813 (IF 3.7)
 
Characterization of novel precursor miRNAs using next generation sequencing and prediction of miRNA targets in Atlantic halibut.
Bizuayehu TT, Fernandes JM, Johansen SD, Babiak I. (2013).
PLoS One. 8: e61378. (IF 3.7).
 
Nuclear group I introns in self-splicing and beyond. (review)
Hedberg A, Johansen SD. (2013).
Mobile DNA. 4: 17. (IF 2.6).
 
 

2012

Sex-Biased miRNA Expression in Atlantic Halibut (Hippoglossus hippoglossus) Brain and Gonads.
Bizuayehu TT, Babiak J, Norberg B, Fernandes JM, Johansen SD, Babiak I. (2012).
Sex Dev. 25: 257-266. (IF 2.2)
 
Polyphyletic origin of the genus Physarum (Physarales, Myxomycetes) revealed by nuclear rDNA mini-chromosome analysis and group I intron synapomorphy.
Nandipati SC, Haugli K, Coucheron DH, Haskins EF, Johansen SD. (2012).
BMC Evol Biol. 12: 166. (IF 3.3; Nivå 2)
 
Digital marine bioprospecting: mining new neurotoxin drug candidates from the transcriptomes of cold-water sea anemones.
Urbarova I, Karlsen BO, Okkenhaug S, Seternes OM, Johansen SD, Emblem A. (2012).
Mar Drugs. 10: 2265-2279. (IF 4.0).
 
Mitogenome polymorphism in a single branch sample revealed by SOLiD deep sequencing of the Lophelia pertusa coral genome.
Emblem Å, Karlsen BO, Evertsen J, Miller DJ, Moum T, Johansen SD. (2012).
Gene 506: 344-349. (IF 2.2)
 
Differential expression patterns of conserved miRNAs and isomiRs during Atlantic halibut development.
Bizuayehu TT, Lanes CF, Furmanek T, Karlsen BO, Fernandes JM, Johansen SD, Babiak I. (2012).
BMC Genomics. 13: 11. (IF 4.4)

2011 

A natural fast-cleaving branching ribozyme from the amoeboflagellate Naegleria pringsheimi.
Tang Y, Nielsen H, Birgisdottir AB, Johansen SD. (2011).
RNA Biol. 8: 997-1004. (IF 4.8).
 
The genome sequence of Atlantic cod reveals a unique immune system.
Star B, Nederbragt AJ, Jentoft S, Grimholt U, Malmstrøm M, Gregers TF, Rounge TB, Paulsen J, Solbakken MH, Sharma A, Wetten OF, Lanzén A, Winer R, Knight J, Vogel JH, Aken B, Andersen O, Lagesen K, Tooming-Klunderud A, Edvardsen RB, Tina KG, Espelund M, Nepal C, Previti C, Karlsen BO, Moum T, Skage M, Berg PR, Gjøen T, Kuhl H, Thorsen J, Malde K, Reinhardt R, Du L, Johansen SD, Searle S, Lien S, Nilsen F, Jonassen I, Omholt SW, Stenseth NC, Jakobsen KS. (2011).
Nature. 477: 207-210. (IF 36.6; Nivå 2)
 
Mitogenome rearrangement in the cold-water scleractinian coral Lophelia pertusa (Cnidaria, Anthozoa) involves a long-term evolving group I intron.
Emblem Å, Karlsen BO, Evertsen J, Johansen SD. (2011)
Mol Phylogenet Evol. 61: 495-503. (IF 4.1; Nivå 2)
 
Population connectivity among migratory and stationary cod Gadus morhua in the Northeast Atlantic - A review of 80 years of study.
Nordeide JT, Johansen SD, Jørgensen TE, Karlsen BO, Moum T. (2011).
Mar Ecol Prog Ser. 435: 269-283. 
 
Intermolecular interaction between a branching ribozyme and associated homing endonuclease mRNA.
Birgisdottir AB, Nielsen H, Beckert B, Masquida B, Johansen SD. (2011).
Biol Chem. 392: 491-499.
 
Characterization of mitochondrial mRNAs in codfish reveals unique features compared to mammals.
Coucheron DH, Nymark M, Breines R, Karlsen BO, Andreassen M, Jørgensen TE, Moum T, Johansen SD. (2011).
Curr Genet. 57: 213-222.

2010 

RNA deep sequencing of the Atlantic cod transcriptome.
Johansen SD, Karlsen BO, Furmanek T, Andreassen M, Jørgensen TE, Bizuayehu TT, Breines R, Emblem A, Kettunen P, Luukko K, Edvardsen RB, Nordeide JT, Coucheron DH, Moum T. (2010).
Comp Biochem Physiol Part D Genomics Proteomics. 6: 18-22.
 
Special review issue on RNA in basic and applied research.
Coucheron DH, Johansen SD. (2010).
N Biotechnol. 27: 169.
 
Approaching marine bioprospecting in hexacorals by RNA deep sequencing.
Johansen SD, Emblem A, Karlsen BO, Okkenhaug S, Hansen H, Moum T, Coucheron DH, Seternes OM. (2010).
N Biotechnol. 27: 267-275.

2009 

Group I introns: Moving in new directions.
Nielsen H, Johansen SD. (2009).
RNA Biol. 6: 375-383. Review.
 
Morphological and nuclear ribosomal DNA data support to distinguish two new species of Umbilicaria (Umbilicariaceae, Ascomycota) from Europe.
Krzewicka B, García MA, Johansen SD, Sancho LG, Martín MP. (2009).
Lichenologist. 41: 1-18.
 
Large-scale sequence analyses of Atlantic cod.
Johansen SD, Coucheron DH, Andreassen M, Karlsen BO, Furmanek T, Jørgensen TE, Emblem A, Breines R, Nordeide JT, Moum T, Nederbragt AJ, Stenseth NC, Jakobsen KS. (2009).
N Biotechnol. 25: 263-271. Review.
 
A conformational switch in the DiGIR1 ribozyme involved in release and folding of the downstream I-DirI mRNA.
Nielsen H, Einvik C, Lentz TE, Hedegaard MM, Johansen SD. (2009).
RNA. 15: 958-967.

2008 

Molecular modelling of the GIR1 branching ribozyme gives new insight into evolution of structurally related ribozymes.
Beckert B, Nielsen H, Einvik C, Johansen SD, Westhof E, Masquida B. (2008).
EMBO J. 27: 667-678. (Nivå 2)
 
Complete mitochondrial genome sequence of the Arctic Ocean codfishes Arctogadus glacialis and Boreogadus saida reveal oriL and tRNA gene duplications.
Breines R, Ursvik A, Nymark M, Johansen SD, Coucheron DH. (2008).
Polar Biol. 31: 1245-1252.
 
Halibut mitochondrial genomes contain extensive heteroplasmic tandem repeat arrays involved in DNA recombination.
Mjelle KA, Karlsen BO, Jørgensen TE, Moum T, Johansen SD. (2008).
BMC Genomics. 9:10.
 
The GIR1 branching ribozyme. 
Nielsen H, Beckert B, Masquida B, Johansen SD. (2008).
Ribozymes and RNA Catalysis (eds. D.M. Lilley, F. Eckstein) pp. 229-252. RSC Biomolecular Sciences, RSC Publishing, Cambridge, UK.

2007 

Expression of protein-coding genes embedded in ribosomal DNA.
Johansen SD, Haugen P, Nielsen H. (2007).
Biol Chem. 388: 679-686. Review.
 
A mitogenomic approach to the taxonomy of pollocks: Theragra chalcogramma and T. finnmarchica represent one single species.
Ursvik A, Breines R, Christiansen JS, Fevolden SE, Coucheron DH, Johansen SD. (2007).
BMC Evol Biol. 7:86. (Nivå 2)
 
The molecular evolution and structural organization of group I introns at position 1389 in nuclear small subunit rDNA of myxomycetes.
Wikmark OG, Haugen P, Lundblad EW, Haugli K, Johansen SD. (2007).
J Eukaryot Microbiol. 54: 49-56.
 
A new RNA branching activity: the GIR1 ribozyme.
Nielsen H, Johansen SD. (2007).
Blood Cells Mol Dis. 38: 102-109.
 
Obligatory group I introns with unusual features at positions 1949 and 2449 in nuclear LSU rDNA of Didymiaceae myxomycetes.
Wikmark OG, Haugen P, Haugli K, Johansen SD. (2007).
Mol Phylogenet Evol. 43: 596-604. (Nivå 2)

2006 

RNA reprogramming of alpha-mannosidase mRNA sequences in vitro by myxomycete group IC1 and IE ribozymes.
Fiskaa T, Lundblad EW, Henriksen JR, Johansen SD, Einvik C. (2006).
FEBS J. 273: 2789-2800. (Nivå 2)
 
Short-term sequence evolution and vertical inheritance of the Naegleria twin-ribozyme group I intron.
Wikmark OG, Einvik C, De Jonckheere JF, Johansen SD. (2006).
BMC Evol Biol. 6:39. (Nivå 2)
 
In vivo expression of a group I intron HEG from the antisense strand of Didymium ribosomal DNA.
Johansen SD, Vader A, Sjøttem E, Nielsen H. (2006).
RNA Biol. 3: 157-162.

2005 

An mRNA is capped by a 2', 5' lariat catalyzed by a group I-like ribozyme.
Nielsen H, Westhof E, Johansen S. (2005)
Science. 309: 1584-1587. (Nivå 2)
 
Reverse splicing of a mobile twin-ribozyme group I intron into the natural small subunit rRNA insertion site.
Birgisdottir AB, Johansen SD. (2005).
Biochem Soc Trans. 33: 482-484.
 
Site-specific reverse splicing of a HEG-containing group I intron in ribosomal RNA.
Birgisdottir AB, Johansen S. (2005).
Nucleic Acids Res. 33:2042-2051. (Nivå 2)
 
The recent transfer of a homing endonuclease gene.
Haugen P, Wikmark OG, Vader A, Coucheron DH, Sjøttem E, Johansen SD. (2005).
Nucleic Acids Res. 33: 2734-2741. (Nivå 2)
 
Molecular phylogenetics of gadidae and related gadiformes based on mitochondrial DNA sequences.
Bakke I, Johansen SD. (2005).
Mar Biotechnol. 7: 61-69.

2004 

Trans-splicing of a mutated glycosylasparaginase mRNA sequence by a group I ribozyme deficient in hydrolysis.
Lundblad EW, Haugen P, Johansen SD. (2004).
Eur J Biochem. 271:4932-4938.
 
Twelve Group I introns in the same pre-rRNA transcript of the myxomycete Fuligo septica: RNA processing and evolution.
Lundblad EW, Einvik C, Rønning S, Haugli K, Johansen S. (2004).
Mol Biol Evol. 21:1283-1293. (Nivå 2)
 
Optimization and application of the group I ribozyme trans-splicing reaction.
Einvik C, Fiskaa T, Lundblad EW, Johansen S. (2004).
Methods Mol Biol. 252: 359-371.
 
Hydrolytic cleavage by a group I intron ribozyme is dependent on RNA structures not important for splicing.
Haugen P, Andreassen M, Birgisdottir AB, Johansen S. (2004).
Eur J Biochem. 271: 1015-1024.

2003 

The molecular evolution and structural organization of self-splicing group I introns at position 516 in nuclear SSU rDNA of myxomycetes.
Haugen P, Coucheron DH, Rønning SB, Haugli K, Johansen S. (2003).
J Eukaryot Microbiol. 50:283-292.
 
The ability to form full-length intron RNA circles is a general property of nuclear group I introns.
Nielsen H, Fiskaa T, Birgisdottir AB, Haugen P, Einvik C, Johansen S. (2003).
RNA. 9: 1464-1475.
 
Structural features and evolutionary considerations of group IB introns in SSU rDNA of the lichen fungus Teloschistes.
Martín MP, Coucheron DH, Johansen S. (2003).
Fungal Genet Biol. 40: 252-260.
 
Amplification and direct sequencing of rDNA ITS region from Myxomycetes with specific primers.
Martin MP, Lados C, Johansen S. (2003).
Mycologia. 95: 474-479.

2002 

DiGIR1 and NaGIR1: naturally occurring group I-like ribozymes with unique core organization and evolved biological role.
Johansen S, Einvik C, Nielsen H. (2002).
Biochimie. 84: 905-912. Review.
 
Characterization of mitochondrial ribosomal RNA genes in gadiformes: sequence variations, secondary structural features, and phylogenetic implications.
Bakke I, Johansen S. (2002).
Mol Phylogenet Evol. 25: 87-100. (Nivå 2)
 
Molecular-phylogenetic, structural and biochemical features of a cold-adapted, marine ichthyosporean near the animal-fungal divergence, described from in vitro cultures.
Jøstensen JP, Sperstad S, Johansen S, Landfald B. (2002). 
Eur J Protistol. 38: 93-104.
 
Characterization of the self-splicing products of two complex Naegleria LSU rDNA group I introns containing homing endonuclease genes.
Haugen P, De Jonckheere JF, Johansen S. (2002).
Eur J Biochem. 269: 1641-1649.

2001 

A new nomenclature of group I introns in ribosomal DNA.
Johansen S, Haugen P. (2001).
RNA. 7: 935-936.
 
Group I introns in nuclear ribosomal DNA of Naegleria.
Johansen S, Coucheron DH, Haugen P. (2001).
IXth International Meeting on the Biology and Pathogenicity of Free-Living Amoebae Proceedings. Billot-Bonef S, Cabanes PA, Marciano-Cabral F, Pernin P, Pringuez E. (eds.). John Libbey Eurotext, Paris, pp. 254-260.

2000 

Functional characterization of isoschizomeric His-Cys box homing endonucleases from Naegleria.
Elde M, Willassen NP, Johansen S. (2000).
Eur J Biochem. 267: 7257-7266.
 
Expression of the Naegleria intron endonuclease is dependent on a functional group I self-cleaving ribozyme.
Decatur WA, Johansen S, Vogt VM. (2000).
RNA. 6: 616-627.
 
Flanking sequences with an essential role in hydrolysis of a self-cleaving group I-like ribozyme.
Einvik C, Nielsen H, Nour R, Johansen S. (2000).
Nucleic Acids Res. 28: 2194-2200. (Nivå 2)

1999 

Complex group-I introns in nuclear SSU rDNA of red and green algae: evidence of homing-endonuclease pseudogenes in the Bangiophyceae.
Haugen P, Huss VA, Nielsen H, Johansen S. (1999).
Curr Genet. 36: 345-353.
 
Sequence Characterization of a Unique Intergenic Spacer in Gadiformes Mitochondrial DNA.
Bakke I, Shields GF, Johansen S. (1999).
Mar Biotechnol. 1: 411-415.
 
Structural characteristics and possible horizontal transfer of group I introns between closely related plant pathogenic fungi.
Holst-Jensen A, Vaage M, Schumacher T, Johansen S. (1999).
Mol Biol Evol. 16: 114-126. (Nivå 2)
 
A complex group I intron in Nectria galligena rDNA.
Johansen S, Haugen P. (1999).
Microbiology. 145: 516-517.
 
In vivo expression of the nucleolar group I intron-encoded I-dirI homing endonuclease involves the removal of a spliceosomal intron.
Vader A, Nielsen H, Johansen S. (1999).
EMBO J. 18: 1003-1013. (Nivå 2)
 
I-NjaI, a nuclear intron-encoded homing endonuclease from Naegleria, generates a pentanucleotide 3' cleavage-overhang within a 19 base-pair partially symmetric DNA recognition site.
Elde M, Haugen P, Willassen NP, Johansen S. (1999).
Eur J Biochem. 259: 281-288.

1998 

Group I twintrons: genetic elements in myxomycete and schizopyrenid amoeboflagellate ribosomal DNAs.
Einvik C, Elde M, Johansen S. (1998).
J Biotechnol. 64: 63-74. Review.
 
Group I-like ribozymes with a novel core organization perform obligate sequential hydrolytic cleavages at two processing sites.
Einvik C, Nielsen H, Westhof E, Michel F, Johansen S. (1998).
RNA. 4: 530-541.

1997 

Naegleria nucleolar introns contain two group I ribozymes with different functions in RNA splicing and processing.
Einvik C, Decatur WA, Embley TM, Vogt VM, Johansen S. (1997).
RNA. 3: 710-720.
 
Group I introns in biotechnology: prospects of application of ribozymes and rare-cutting homing endonucleases.
Johansen S, Einvik C, Elde M, Haugen P, Vader A, Haugli F. (1997).  
Biotechnol Annual Rev. 3: 111-150. 
 
In vivo mobility of a group I twintron in nuclear ribosomal DNA of the myxomycete Didymium iridis.
Johansen S, Elde M, Vader A, Haugen P, Haugli K, Haugli F. (1997).
Mol Microbiol. 24: 737-745. (Nivå 2)

1996 

The complete mitochondrial DNA sequence of Atlantic cod (Gadus morhua): relevance to taxonomic studies among codfishes.
Johansen S, Bakke I. (1996).
Mol Mar Biol Biotechnol. 5: 203-214.
 
Insertion Elements in Ribosomal DNA.
Johansen S, Muscarella DE, Vogt VM. (1996). 
Ribosomal RNA: Structure, Evolution, Processing, and Function in Protein Biosynthesis. Zimmermann RA and Dahlberg AE (eds.). CRC Press, pp. 89-108.
 
Lack of population subdivision among the minke whales (Balaenoptera acutorostrata) from Icelandic and Norwegian waters based on mitochondrial DNA sequences. 
Bakke I, Johansen S, Bakke Ø, El-Gewely MR. (1996). 
Mar Biol. 125: 1-9.

1995 

Variable numbers of simple tandem repeats make birds of the order ciconiiformes heteroplasmic in their mitochondrial genomes.
Berg T, Moum T, Johansen S. (1995).
Curr Genet.27: 257-262.
 
Two group I ribozymes with different functions in a nuclear rDNA intron.
Decatur WA, Einvik C, Johansen S, Vogt VM. (1995)
EMBO J. 14: 4558-4568. (Nivå 2)
 
Sequence characteristics of mitochondrial DNA regions of Atlantic cod and seabirds.
Johansen S, Berg T, Moum T. (1995).
J Mar Biotechnol. 3: 235-238. (IF 2.4).

1994 

Nucleolar introns from Physarum flavicomum contain insertion elements that may explain how mobile group I introns gained their open reading frames.
Vader A, Naess J, Haugli K, Haugli F, Johansen S. (1994).
Nucleic Acids Res. 22: 4553-4559. (Nivå 2)
 
Phylogeny and evolution of the auks (subfamily Alcinae) based on mitochondrial DNA sequences.
Moum T, Johansen S, Erikstad KE, Piatt JF. (1994).
Proc Natl Acad Sci USA. 91: 7912-7916. (Nivå 2)
 
Sequence analysis of 12 structural genes and a novel non-coding region from mitochondrial DNA of Atlantic cod, Gadus morhua.
Johansen S, Johansen T. (1994).
Biochim Biophys Acta. 1218: 213-217.
 
Intragenic rearrangements in the mitochondrial NADH dehydrogenase subunit 6 gene of vertebrates.
Moum T, Willassen NP, Johansen S. (1994).
Curr Genet. 25: 554-557.
 
An intron in the nuclear ribosomal DNA of Didymium iridis codes for a group I ribozyme and a novel ribozyme that cooperate in self-splicing.
Johansen S, Vogt VM. (1994).
Cell. 76: 725-734. (Nivå 2)

1993 

A family of nuclear homing endonucleases.
Johansen S, Embley TM, Willassen NP. (1993).
Nucleic Acids Res. 21: 4405. (Nivå 2)
 
The putative origin of heavy strand replication (oriH) in mitochondrial DNA is highly conserved among the teleost fishes.
Johansen S, Johansen T. (1993).
DNA Seq. 3: 397-399.

1992 

Characterization of the self-splicing products of a mobile intron from the nuclear rDNA of Physarum polycephalum.
Ruoff B, Johansen S, Vogt VM. (1992).
Nucleic Acids Res. 20: 5899-5906. (Nivå 2)
 
The mitochondrial NADH dehydrogenase subunit 6 (ND6) gene in Murres: relevance to phylogenetic and population studies among birds.
Moum T, Johansen S. (1992).
Genome. 35: 903-906.
 
Extrachromosomal ribosomal DNA of Didymium iridis: sequence analysis of the large subunit ribosomal RNA gene and sub-telomeric region.
Johansen S, Johansen T, Haugli F. (1992).
Curr Genet. 22: 305-312.
 
Structure and evolution of myxomycete nuclear group I introns: a model for horizontal transfer by intron homing.
Johansen S, Johansen T, Haugli F. (1992).
Curr Genet. 22: 297-304.

1991 

Strain-dependent sequence heterogeneity in the nuclear group I introns and large subunit ribosomal RNA in Physarum polycephalum.
Johansen S. (1991).
DNA Seq. 2: 193-196.
 
Rapid disappearance of one parental mitochondrial genotype after isogamous mating in the myxomycete Physarum polycephalum.
Meland S, Johansen S, Johansen T, Haugli K, Haugli F. (1991).
Curr Genet. 19: 55-59.

1990 

Organization of the mitochondrial genome of Atlantic cod, Gadus morhua.
Johansen S, Guddal PH, Johansen T. (1990).
Nucleic Acids Res. 18: 411-419. (Nivå 2)

1988 

Determination of sequence copy numbers by quantitative RNA-DNA filter hybridization
Johansen S, Johansen T, Haugli F. (1988).
DNA Prot Engin Techn. 1: 90-94.
 
Rapid isolation and purification of mitochondrial DNA from fish
Johansen S. (1988). 
DNA Prot Engin Techn. 1: 77-79.
 
Nucleotide sequence of the Physarum polycephalum small subunit ribosomal RNA as inferred from the gene sequence: secondary structure and evolutionary implications.
Johansen T, Johansen S, Haugli FB. (1988).
Curr Genet. 14: 265-273.

Interesser

interesse



Arbeider i CRIStin

  • Bizuayehu, Teshome; Fernandes, Jorge; Johansen, Steinar Daae; Babiak, Igor. Characterization of novel precursor miRNAs using next generation sequencing and prediction of miRNA targets in Atlantic halibut. (fulltekst) PLoS ONE 2013; Volum 8 (4). ISSN 1932-6203.s doi: 10.1371/journal.pone.0061378.
  • Knutsen, Erik; Fiskaa, Tonje; Ursvik, anita; Jørgensen, Tor Erik; Perander, maria; Lund, Eiliv; Seternes, Ole Morten; Johansen, Steinar; Andreassen, morten. Performance Comparison of Digital microRNA Profiling Technologies Applied on Human Breast Cancer Cell Lines. PLoS ONE 2013; Volum 8 (10). ISSN 1932-6203.s doi: 10.1371/journal.pone.0075813.
  • Karlsen, Bård Ove; Klingan, Kevin; Emblem, Åse; Jørgensen, Tor Erik; Jüterbock, Alexander; Furmanek, Tomasz; Hoarau, Galice; Johansen, Steinar; Nordeide, Jarle Tryti; Moum, Truls Borg. Genomic divergence between the migratory and stationary ecotypes of Atlantic cod. Molecular Ecology 2013; Volum 22 (20). ISSN 0962-1083.s 5098 - 5111.s doi: 10.1111/mec.12454.
  • Hedberg, Annica; Johansen, Steinar. Nuclear group I introns in self-splicing and beyond. Mobile DNA 2013; Volum 4:17. ISSN 1759-8753.s doi: 10.1186/1759-8753-4-17.
  • Fismen, Silje; Thiyagarajan, Dhivya; Seredkina, Natalya; Nielsen, Henrik; Jacobsen, Søren; Elung-Jensen, Thomas; Kamper, Anne-Lise; Johansen, Steinar; Mortensen, Elin Synnøve; Rekvig, Ole Petter. Impact of the Tumor Necrosis Factor Receptor-Associated Protein 1 (Trap1) on Renal DNaseI Shutdown and on Progression of Murine and Human Lupus Nephritis. American Journal of Pathology 2013; Volum 182 (3). ISSN 0002-9440.s 688 - 700.s doi: 10.1016/j.ajpath.2012.11.013.
  • Bizuayehu, Teshome; Lanes, Carlos Fredrico Ceccon; Furmanek, Tomasz; Karlsen, Bård Ove; Fernandes, Jorge; Johansen, Steinar; Babiak, Igor. Differential expression patterns of conserved miRNAs and isomiRs during Atlantic halibut development. (fulltekst) BMC Genomics 2012; Volum 13. ISSN 1471-2164.s doi: 10.1186/1471-2164-13-11.
  • Nandipati, Satish C R; Haugli, kari b.; Coucheron, Dag-Hugo; Haskins, Edward F.; Johansen, Steinar. Polyphyletic origin of the genus Physarum (Physarales, Myxomycetes) revealed by nuclear rDNA mini-chromosomal analysis and group I intron synapomorphy. BMC Evolutionary Biology 2012; Volum 12 (166). ISSN 1471-2148.s doi: 10.1186/1471-2148-12-166.
  • Urbarova, Ilona; Karlsen, Bård Ove; Okkenhaug, Siri; Seternes, Ole Morten; Johansen, Steinar; Emblem, Åse. Digital Marine Bioprospecting: Mining New Neurotoxin Drug Candidates from the Transcriptomes of Cold-Water Sea Anemones. Marine Drugs 2012; Volum 10 (10). ISSN 1660-3397.s 2265 - 2279.s doi: 10.3390/md10102265.
  • Emblem, Åse; Karlsen, Bård Ove; Evertsen, Jussi; Miller, DJ; Moum, Truls Borg; Johansen, Steinar. Mitogenome polymorphism in a single branch sample revealed by SOLiD deep sequencing of the Lophelia pertusa coral genome. Gene 2012; Volum 506 (2). ISSN 0378-1119.s 344 - 349.s doi: 10.1016/j.gene.2012.06.040.
  • Bizuayehu, Teshome; Babiak, Joanna; Norberg, Birgitta; Fernandes, Jorge; Johansen, Steinar; Babiak, Igor. Sex-biased miRNA expression in Atlantic halibut (Hippoglossus hippoglossus) brain and gonads. (fulltekst) Sexual Development 2012; Volum 6 (5). ISSN 1661-5425.s 257 - 266.s doi: 10.1159/000341378.
  • Johansen, Steinar Daae; Karlsen, Bård Ove; Furmanek, Tomasz; Andreassen, morten; Jørgensen, Tor Erik; Bizuayehu, Teshome; Breines, Ragna; Emblem, Åse; Kettunen, Paivi; Luukko, Keijo; Edvardsen, Rolf; Nordeide, Jarle Tryti; Coucheron, Dag-Hugo; Moum, Truls. RNA deep sequencing of the Atlantic cod transcriptome. Comparative Biochemistry and Physiology - Part D:Genomics and Proteomics 2011; Volum 6 (1). ISSN 1744-117X.s 18 - 22.s doi: 10.1016/j.cbd.2010.04.005.
  • Tang, Yunjia; Nielsen, Henrik; Birgisdottir, Åsa birna; Johansen, Steinar Daae. A natural fast-cleaving branching ribozyme from the amoeboflagellate Naegleria pringsheimi. RNA Biology 2011; Volum 8. ISSN 1547-6286.s 997 - 1004.s doi: 10.4161/rna.8.6.16027.
  • Nordeide, Jarle Tryti; Johansen, Steinar Daae; Jørgensen, Tor Erik; Karlsen, Bård Ove; Moum, Truls. Population connectivity among migratory and stationary cod Gadus morhua in the Northeast Atlantic-A review of 80 years of study. Marine Ecology Progress Series 2011; Volum 435. ISSN 0171-8630.s 269 - 283.s doi: 10.3354/meps09232.
  • Birgisdottir, Åsa birna; Nielsen, Henrik; Beckert, Bertrand; Masquida, Benoît; Johansen, Steinar Daae. Intermolecular interaction between a branching ribozyme and associated homing endonuclease mRNA. Biological chemistry (Print) 2011; Volum 392 (6). ISSN 1431-6730.s 491 - 499.s doi: 10.1515/BC.2011.055.
  • Coucheron, Dag-Hugo; Nymark, Marianne; Breines, Ragna; Karlsen, Bård Ove; Andreassen, morten; Jørgensen, Tor Erik; Moum, Truls; Johansen, Steinar Daae. Characterization of mitochondrial mRNAs in codfish reveals unique features compared to mammals. Current Genetics 2011; Volum 57 (3). ISSN 0172-8083.s 213 - 222.s doi: 10.1007/s00294-011-0338-2.
  • Star, Bastiaan; Nederbragt, Alexander Johan; Jentoft, Sissel; Grimholt, Unni; Malmstrøm, Martin; Gregers, Tone Fredsvik; Rounge, Trine Ballestad; Paulsen, Jonas; Solbakken, Monica Hongrø; Sharma, Animesh; Wetten, Ola Frang; Lanzén, Anders; Winer, Roger; Knight, James; Vogel, Jan-Hinnerk; Aken, Bronwen; Andersen, Øivind; Lagesen, Karin; Tooming-Klunderud, Ave; Edvardsen, Rolf; Kirubakaran, G. Tina; Espelund, Mari; Nepal, Chirag; Previti, A. Christopher; Karlsen, Bård Ove; Moum, Truls; Skage, Morten; Berg, Paul Ragnar; Gjøen, Tor; Kuhl, Heiner; Thorsen, Jim; Malde, Ketil; Reinhardt, Richard; Du, Lei; Johansen, Steinar Daae; Searle, Steve; Lien, Sigbjørn; Nilsen, Frank; Jonassen, Inge; Omholt, Stig W; Stenseth, Nils Christian; Jakobsen, Kjetill Sigurd. The genome sequence of Atlantic cod reveals a unique immune system. Nature 2011; Volum 477 (7363). ISSN 0028-0836.s 207 - 210.s doi: 10.1038/nature10342.
  • Emblem, Åse; Karlsen, Bård Ove; Evertsen, Jussi; Johansen, Steinar Daae. Mitogenome rearrangement in the cold-water scleractinian coral Lophelia pertusa (Cnidaria, Anthozoa) involves a long-term evolving group I intron. Molecular Phylogenetics and Evolution 2011; Volum 61 (2). ISSN 1055-7903.s 495 - 503.s doi: 10.1016/j.ympev.2011.07.012.
  • Johansen, Steinar D.; Emblem, Åse; Karlsen, Bård Ove; Okkenhaug, Siri; Hansen, Hilde; Moum, Truls; Coucheron, Dag-Hugo; Seternes, ole morten. Approaching marine bioprospecting in hexacorals by RNA deep sequencing. New Biotechnology 2010; Volum 27 (3). ISSN 1871-6784.s 267 - 275.s doi: 10.1016/j.nbt.2010.02.019.
  • Coucheron, Dag H.; Andreassen, Morten; Karlsen, Bård O.; Furmanek, Tomasz; Jørgensen, Tor Erik; Emblem, Åse; Breines, Ragna; Nordeide, Jarle Tryti; Johansen, Steinar D.; Moum, Truls; Nederbragt, Alexander J.; Stenseth, Nils Christian; Jakobsen, Kjetill S.. Large-scale sequence analyses of Atlantic cod. New Biotechnology 2009; Volum 25 (5). ISSN 1871-6784.s 263 - 271.
  • Nielsen, Henrik; Johansen, Steinar. Group I introns: Moving in new directions. RNA Biology 2009; Volum 6 (4). ISSN 1547-6286.s 375 - 383.s doi: http://dx.doi.org/10.4161/rna.6.4.9334.
  • Johansen, Steinar; Coucheron, Dag-Hugo; Andreassen, morten; Karlsen, Bård Ove; Furmanek, T; Jorgensen, TE; Jørgensen, Tor Erik; Emblem, A; Emblem, Åse; Breines, Ragna; Nordeide, JT; Moum, Truls; Nederbragt, AJ; Stenseth, Nils Christian; Jakobsen, KS. Large-scale sequence analyses of Atlantic cod. New Biotechnology 2009; Volum 25 (5). ISSN 1871-6784.s 263 - 271.s doi: 10.1016/j.nbt.2009.03.014.
  • Krzewicka, B; Garcia, MA; Johansen, Steinar; Sancho, LG; Martin, Maria. Morphological and nuclear ribosomal DNA data support distinguishing two new species of Umbilicaria (Umbilicariaceae, Ascomycota) from Europe. The Lichenologist 2009; Volum 41. ISSN 0024-2829.s 631 - 648.s doi: 10.1017/S0024282909990120.
  • Nielsen, Henrik; Einvik, christer; Lentz, Thomas E; Hedegaard, MM; Johansen, Steinar. A conformational switch in the DiGIR1 ribozyme involved in release and folding of the downstream I-DirI mRNA. RNA: A publication of the RNA Society 2009; Volum 15 (5). ISSN 1355-8382.s 958 - 967.s doi: 10.1261/rna.669209.
  • Beckert, B; Nielsen, Henrik; Einvik, christer; Johansen, Steinar; Westhof, E; Masquida, B. Molecular modelling of the GIR1 branching ribozyme gives new insight into evolution of structurally related ribozymes. EMBO Journal 2008; Volum 27 (4). ISSN 0261-4189.s 667 - 678.s doi: 10.1038/emboj.2008.4.
  • Breines, Ragna; Ursvik, Anita; Nymark, Marianne; Johansen, Steinar D.; Coucheron, Dag H.. Complete mitochondrial genome sequences of the Arctic Ocean codfishes Arctogadus glacialis and Boreogadus saida reveal oriL and tRNA gene duplications. Polar Biology 2008; Volum 31 (10). ISSN 0722-4060.s 1245 - 1252.
  • Johansen, Steinar D.; Mjelle, Kenneth A; Karlsen, Bård O.; Jørgensen, Tor Erik; Moum, Truls. Halibut mitochondrial genomes contain extensive heteroplasmic tandem repeat arrays involved in DNA recombination. BMC Genomics 2008; Volum 9. ISSN 1471-2164.s 11 - .
  • Breines, Ragna; Ursvik, anita; Nymark, Marianne; Johansen, Steinar; Coucheron, Dag-Hugo. Complete mitochondrial genome sequences of the Arctic Ocean codfishes Arctogadus glacialis and Boreogadus saida reveal oriL and tRNA gene duplications. Polar Biology 2008; Volum 31. ISSN 0722-4060.s 1245 - 1252.s doi: 10.1007/s00300-008-0463-7.
  • Mjelle, Kenneth A; Karlsen, Bård Ove; Jørgensen, Tor E; Moum, Truls; Johansen, Steinar. Halibut mitochondrial genomes contain extensive heteroplasmic tandem repeat arrays involved in DNA recombination. BMC Genomics 2008; Volum 9. ISSN 1471-2164.s doi: 10.1186/1471-2164-9-10.
  • Wikmark, Odd-Gunnar; Haugen, Peik; Lundblad, eirik wasmuth; Haugli, kari b.; Johansen, Steinar. The molecular evolution and structural organization of group I introns at position 1389 in nuclear small subunit rDNA of myxomycetes. Journal of Eukaryotic Microbiology 2007; Volum 54. ISSN 1066-5234.s doi: 10.1111/j.1550-7408.2006.00145.x.
  • Ursvik, Anita; Breines, Ragna; Johansen, Steinar D.; Christiansen, Jørgen Schou; Fevolden, Svein-Erik; Coucheron, Dag H.. A mitogenomic approach to the taxonomy of pollocks: Theragra chalcogramma and T-finnmarchica represent one single species. (omtale) BMC Evolutionary Biology 2007; Volum 7 (Artikkel 86). ISSN 1471-2148.s 8 - .
  • Wikmark, Odd-Gunnar; Johansen, Steinar D.; Haugen, Peik; Haugli, K. Obligatory group I introns with unusual features at positions 1949 and 2449 in nuclear LSU rDNA of Didymiaceae myxomycetes. Molecular Phylogenetics and Evolution 2007; Volum 43. ISSN 1055-7903.s 596 - 604.
  • Johansen, Steinar D.; Wikmark, Odd-Gunnar; Haugen, Peik; Lundblad, E W; Haugli, K. The molecular evolution and structural organization of group I introns at position 1389 in nuclear small subunit rDNA of myxomycetes. Journal of Eukaryotic Microbiology 2007; Volum 54 (1). ISSN 1066-5234.s 49 - 56.
  • Johansen, Steinar; Haugen, Peik; Nielsen, Henrik. Expression of protein-coding genes embedded in ribosomal DNA. Biological chemistry (Print) 2007; Volum 388. ISSN 1431-6730.s 679 - 686.s doi: 10.1515/BC.2007.089.
  • Ursvik, Anita; Breines, Ragna; Christiansen, Jørgen Schou; Fevolden, Svein-Erik; Coucheron, Dag-Hugo; Johansen, Steinar. A mitogenomic approach to the taxonomy of pollocks: Theragra chalcogramma and T-finnmarchica represent one single species. BMC Evolutionary Biology 2007; Volum 7. ISSN 1471-2148.s doi: 10.1186/1471-2148-7-86.
  • Nielsen, Henrik; Johansen, Steinar. A new RNA branching activity: The GIR1 ribozyme. Blood Cells, Molecules & Diseases 2007; Volum 38. ISSN 1079-9796.s doi: 10.1016/j.bcmd.2006.11.001.
  • Wikmark, Odd-Gunnar; Haugen, Peik; Haugli, kari b.; Johansen, Steinar. Obligatory group I introns with unusual features at positions 1949 and 2449 in nuclear LSU rDNA of Didymiaceae myxomycetes. Molecular Phylogenetics and Evolution 2007; Volum 43. ISSN 1055-7903.s 596 - 604.s doi: 10.1016/j.ympev.2006.11.004.
  • Wikmark, Odd-Gunnar; Johansen, Steinar D.; Einvik, C; De Jonckheere, J.. Short-term sequence evolution and vertical inheritance of the Naegleria twin-ribozyme group I intron. BMC Evolutionary Biology 2006; Volum 6 (39). ISSN 1471-2148.s 12 - .
  • Wikmark, Odd Gunnar; Einvik, Christer; De Jonckheere, JF; Johansen, Steinar. Short-term sequence evolution and vertical inheritance of the Naegleria twin-ribozyme group I intron. BMC Evolutionary Biology 2006; Volum 6. ISSN 1471-2148.
  • Fiskaa, Tonje; Lundblad, Eirik Wasmuth; Henriksen, Jørn Remi; Johansen, Steinar; Einvik, Christer. RNA reprogramming of alpha-mannosidase mRNA sequences in vitro by myxomycete group IC1 and IE ribozymes. The FEBS Journal 2006; Volum 273. ISSN 1742-464X.
  • Johansen, Steinar; Vader, Anna; Sjøttem, Eva; Nielsen, Henrik. In vivo expression of a group I intron HEG from the antisense strand of Didymium ribosomal DNA. RNA Biology 2006; Volum 3 (4). ISSN 1547-6286.s 157 - 162.
  • Johansen, Steinar D.; Birgisdottir, Åsa B.. Reverse splicing of a mobile twin-ribozyme group I intron into the natural small subunit rRNA insertion site. (omtale) Biochemical Society Transactions 2005; Volum 33 (3). ISSN 0300-5127.s 482 - 484.
  • Johansen, Steinar D.; Birgisdottir, Åsa B.. Site-specific reverse splicing of a HEG-containing group I intron in ribosomal RNA. (omtale) Nucleic Acids Research 2005; Volum 33 (6). ISSN 0305-1048.s 2042 - 2051.
  • Haugen, Peik; Wikmark, Odd-Gunnar; Vader, Anna; Coucheron, Dag H.; Sjøttem, Eva; Johansen, Steinar D.. The recent transfer of a homing endonuclease gene. (omtale) Nucleic Acids Research 2005; Volum 33 (8). ISSN 0305-1048.s 2734 - 2741.
  • Johansen, Steinar D.; Bakke, Ingrid. Molecular phylogenetics of Gadidae and related Gadiformes based on mitochondrial DNA sequences. Marine Biotechnology 2005; Volum 7 (1). ISSN 1436-2228.s 61 - 69.
  • Bakke, Ingrid; Johansen, Steinar. Molecular phylogenetics of Gadidae and related Gadiformes based on mitochondrial DNA sequences. Marine Biotechnology 2005; Volum 7. ISSN 1436-2228.
  • Nielsen, Henrik; Westhof, E; Johansen, Steinar. An mRNA is capped by a 2 ',5 ' lariat catalyzed by a group I-like ribozyme. Science 2005; Volum 309. ISSN 0036-8075.s 1584 - 1587.
  • Birgisdottir, Åsa Birna; Johansen, Steinar. Reverse splicing of a mobile twin-ribozyme group I intron into the natural small subunit rRNA insertion site. Biochemical Society Transactions 2005; Volum 33. ISSN 0300-5127.
  • Birgisdottir, Åsa Birna; Johansen, Steinar. Site-specific reverse splicing of a HEG-containing group I intron in ribosomal RNA. Nucleic Acids Research 2005; Volum 33. ISSN 0305-1048.
  • Haugen, Peik; Wikmark, Odd Gunnar; Vader, A; Coucheron, Dag-Hugo; Sjøttem, Eva; Johansen, Steinar. The recent transfer of a homing endonuclease gene. Nucleic Acids Research 2005; Volum 33. ISSN 0305-1048.
  • Johansen, Steinar D.. Optimization and application of the group I ribozyme trans-splicing reaction. Methods in Molecular Biology 2004; Volum 252. ISSN 1064-3745.s 359 - 371.
  • Johansen, Steinar D.. Molecular phylogenetics of gadidae and related gadiformesbased on mitochondrial DNA sequences. Marine Biotechnology 2004; Volum 6 (6). ISSN 1436-2228.
  • Lundblad, E W; Einvik, C; Ronning, S; Johansen, Steinar D.; Haugli, K. Twelve group I Introns in the same pre-rRNA transcript of the myxomycete Fuligo septica: RNA processing and evolution. Molecular biology and evolution 2004; Volum 21 (7). ISSN 0737-4038.s 1283 - 1293.
  • Johansen, Steinar D.; Lundblad, E W; Haugen, Peik. Trans-splicing of a mutated glycosylasparaginase mRNA sequence by a group I ribozyme deficient in hydrolysis. European Journal of Biochemistry 2004; Volum 271 (23-24). ISSN 0014-2956.s 4932 - 4938.
  • Haugen, Peik; Birgisdottir, Åsa B.; Johansen, Steinar D.. Hydrolytic cleavage by a group I intron ribozyme is dependent on RNA structures not important for splicing. European Journal of Biochemistry 2004; Volum 271 (5). ISSN 0014-2956.s 1015 - 1024.
  • Einvik, Christer; Fiskaa, Tonje; Lundblad, Eirik Wasmuth; Johansen, Steinar. Optimization and application of the group I ribozyme trans-splicing reaction.. Methods in Molecular Biology 2004; Volum 252. ISSN 1064-3745.s 359 - 371.
  • Lundblad, Eirik Wasmuth; Einvik, Christer; Rønning, S; Haugli, Kari B.; Johansen, Steinar. Twelve group I Introns in the same pre-rRNA transcript of the myxomycete Fuligo septica: RNA processing and evolution. Molecular biology and evolution 2004; Volum 21. ISSN 0737-4038.s 1283 - 1293.
  • Lundblad, Eirik Wasmuth; Haugen, Peik; Johansen, Steinar. Trans-splicing of a mutated glycosylasparaginase mRNA sequence by a group I ribozyme deficient in hydrolysis. European Journal of Biochemistry 2004; Volum 271. ISSN 0014-2956.s 4932 - 4938.
  • Haugen, Peik; Birgisdottir, Åsa Birna; Johansen, S; Johansen, Steinar. Hydrolytic cleavage by a group I intron ribozyme is dependent on RNA structures not important for splicing. European Journal of Biochemistry 2004; Volum 271. ISSN 0014-2956.s 1015 - 1024.
  • Martin, Maria; Lados, C; Johansen, Steinar. Amplification and direct sequencing of rDNA ITS region from Myxomycetes with specific primers. Mycologia 2003; Volum 95. ISSN 0027-5514.s 474 - 479.
  • Nielsen, Henrik; Fiskaa, Tonje; Birgisdottir, Åsa Birna; Haugen, Peik; Einvik, christer; Johansen, Steinar. The ability to form full-length intron RNA circles is a general property of nuclear group I introns. RNA: A publication of the RNA Society 2003; Volum 9. ISSN 1355-8382.s 1464 - 1475.
  • Martin, Maria; Coucheron, Dag-Hugo; Johansen, Steinar. Structural features and evolutionary considerations of group IB introns in SSU rDNA of the lichen fungus Teloschistes. Fungal Genetics and Biology 2003; Volum 40. ISSN 1087-1845.s 252 - 260.
  • Haugen, Peik; Coucheron, Dag-Hugo; Rønning, S; Haugli, kari b.; Johansen, Steinar. The molecular evolution and structural organization of self-splicing group I introns at position 516 in nuclear SSU rDNA of myxomycetes. Journal of Eukaryotic Microbiology 2003; Volum 50 (4). ISSN 1066-5234.s 283 - 292.
  • Vader, Anna; Johansen, Steinar; Nielsen, Henrik. The group I-like ribozyme DiGIR1 mediates alternative processing of pre-rRNA transcripts in Didymium iridis. European Journal of Biochemistry 2002; Volum 269. ISSN 0014-2956.s 5804 - 5812.
  • Johansen, Steinar Daae; Andreassen, morten; Birgisdottir, Åsa birna; Coucheron, Dag-Hugo; Einvik, Christer; Fiskaa, Tonje; Haugli, kari b.; Lundblad, Eirik Wasmuth; Sjøttem, Eva; SkjÆveland, ingrid; Wikmark, Odd Gunnar. Group I introns are very common in nuclear SSU rDNA and LSU rDNA of Myxomycetes. Scripta Botanica Belgica 2002; Volum 22. ISSN 0779-2387.s 43 - .
  • Johansen, Steinar Daae; Haugli, kari b.; Coucheron, Dag-Hugo; Clark, J; Haskins, E.F.. Phylogeny of Myxomycetes based on combined SSU rDNA and LSU rDNA sequence data. Scripta Botanica Belgica 2002; Volum 22. ISSN 0779-2387.s 44 - .
  • Johansen, Steinar; Einvik, christer; Nielsen, Henrik. DiGIR1 and NaGIR1: naturally occurring group I-like ribozymes with unique core organization and evolved biological role.. Biochimie 2002; Volum 84. ISSN 0300-9084.s 905 - 912.
  • Haugen, Peik; De Jonckheere, JF; Johansen, Steinar. Characterization of the self-splicing products of two complex Naegleria LSU rDNA group I introns containing homing endonuclease genes. European Journal of Biochemistry 2002; Volum 269. ISSN 0014-2956.s 1641 - 1649.
  • Bakke, Ingrid; Johansen, Steinar. Characterization of the mitochondrial ribosomal RNA genes in gadoids: sequence variation, secondary structure and phylogenetic implications. Molecular Phylogenetics and Evolution 2002; Volum 25. ISSN 1055-7903.s 87 - 100.
  • Jøstensen, J-P; Sperstad, sigmund; Johansen, Steinar; Landfald, Bjarne. Molecular-phylogenetic, structural and biochemical features of a cold-adapted, marine ichthyosporean near the animal-fungal divergence, described from in vitro cultures. European Journal of Protistology 2002; Volum 38. ISSN 0932-4739.s 93 - 104.
  • Johansen, Steinar; Haugen, Peik. New nomenclature system for group I introns in ribosomal DNA. RNA: A publication of the RNA Society 2001; Volum 7. ISSN 1355-8382.s 935 - 936.
  • Decatur, W; Johansen, Steinar; Vogt, V. Nuclear expression of the Naegleria intron endonuclease is dependent on a functional group I self-cleaving ribozyme. RNA: A publication of the RNA Society 2000; Volum 6. ISSN 1355-8382.s 616 - 627.
  • 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.
  • Einvik, christer; Nielsen, Henrik; Nour, R; Johansen, Steinar. Flanking sequences with essential role in hydrolysis of a self-cleaving group I-like ribozyme. Nucleic Acids Research 2000; Volum 28. ISSN 0305-1048.s 2194 - 2200.
  • Holst-Jensen, Arne; Vaage, Marianne; Schumacher, Trond; Johansen, Steinar. Structural characteristics and possible horizontal transfer of group I introns between closely related plant pathogenic fungi. Molecular biology and evolution 1999; Volum 16. ISSN 0737-4038.s 114 - 126.
  • Johansen, Steinar; Haugen, Peik. A complex group I intron in Nectria galligena rDNA. Microbiology 1999; Volum 145. ISSN 1350-0872.s 516 - 517.
  • 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.
  • Vader, Anna; Nielsen, Henrik; Johansen, Steinar. In vivo expression of the nucleolar DiSSU1 group I intron encoded endonuclease involves the removal of a spliceosomal intron. EMBO Journal 1999; Volum 18. ISSN 0261-4189.s 1003 - 1013.
  • Berg, Thomas; Moum, Truls; Johansen, Steinar D.. Variable numbers of simple tandem repeats make birds of the order Ciconiiformes heteroplasmic in their mitochondrial genomes. Current Genetics 1995; Volum 27. ISSN 0172-8083.s 257 - 262.
  • Solstad, Runar Gjerp; Blencke, Hans-Matti; Andreev, Yaroslav A.; Sydnes, Magne Olav; Moe, Morten Kaare; Johansen, Steinar Daae; Mishchenko, Ekaterina; Devold, Hege; Bjørsvik, Magnus S.; Strøm, Morten B.; Karp, Matti; Svenson, Johan; Grishin, Eugene V.; Haug, Tor; Stensvåg, Klara. Exploring the bioactive peptide space of arctic marine invertebrates. The 3rd International Meeting on Antimicrobial Peptides IMAP 2013 2013-09-23 - 2013-09-24 2013.
  • Johansen, Steinar; Moum, Truls. Jakten på sannheten om Berlevågsfisken. Avisa Nordland 2012.s 3 - .
  • Johansen, Steinar Daae. Approaching marine bioprospecting by whole genome and transcriptome sequencing. Bioprosp 2011 2011-02-23 - 2011-02-25 2011.
  • Johansen, Steinar Daae; Andreassen, morten; Babiak, Igor; Bizuayehu, Teshome; Coucheron, Dag-Hugo; El-Gewely, M. Raafat; Emblem, Åse; Fiskaa, Tonje; Furmanek, Tomasz; Haugli, kari b.; Karlsen, Bård Ove; Klingan, Kevin; Knutsen, Erik; Jørgensen, Tor Erik; Moum, Truls Borg; Nordeide, Jarle Tryti; Okkenhaug, Siri; Rekvig, Ole Petter; Seternes, ole morten; Ursvik, anita. Investigating miRNAs and transcriptomes at our local SOLiD sequencing facility. The Norwegian Biochemical Society 47th Contact Meeting 2011-02-03 - 2011-02-06 2011.
  • Masquida, Benoît; Beckert, Bertrand; Nielsen, Henrik; Tang, Yunjia; Johansen, Steinar Daae. Molecular modelling of the regulatory domains of the GIR1 branching ribozymes. RNA 2011 2011-06-14 - 2011-06-18 2011.
  • Tang, Yunjia; Beckert, Bertrand; Birgisdottir, Åsa birna; Johansen, Steinar Daae; Nielsen, Henrik. A new model of group I-like ribozyme - structure and function study of Naegleria pringsheimi GIR1. RNA 2011 2011-06-14 - 2011-06-18 2011.
  • Nielsen, Henrik; Tang, Yunjia; Beckert, Bertrand; Masquida, Benoît; Johansen, Steinar Daae. Identification of the on-switch in two different GIR1 ribozymes. RNA 2011 2011-06-14 - 2011-06-18 2011.
  • Bizuayehu, Teshome; Lanes, Carlos Fredrico Ceccon; Babiak, Joanna; Fernandes, Jorge; Johansen, Steinar Daae; Babiak, Igor. SEXUAL DIFFERENCES IN MIRNA EXPRESSION IN ATLANTIC HALIBUT BRAIN AND GONADS. World Aquaculture Society 2011-06-06 - 2011-06-10 2011.
  • Bizuayehu, Teshome; Lanes, Carlos Fredrico Ceccon; Furmanek, Tomasz; Karlsen, Bård Ove; Babiak, Joanna; Fernandes, Jorge; Johansen, Steinar Daae; Babiak, Igor. SMALLRNAS IN ATLANTIC HALIBUT (Hippoglossus hippoglossus L.). Marine Bioprospecting 2011-02-23 - 2011-02-25 2011.
  • Johansen, Steinar D.; Bizuayehu, Teshome; Lanes, Carlos Frederico Ceccon; Furmanek, Tomasz; Karlsen, Bård O.; Fernandes, Jorge; Babiak, Igor. MicroRNA profiling using Solid 3 platform during early development of Atlantic halibut (Hippoglossus hippoglossus). Aquaculture Europe 2010 2010-10-05 - 2010-10-08 2010.
  • Coucheron, Dag-Hugo; Johansen, Steinar Daae. Special review issue on RNA in basic and applied research. New Biotechnology 2010; Volum 27 (3). ISSN 1871-6784.s 169 - 169.s doi: 10.1016/j.nbt.2010.02.011.
  • Johansen, Steinar Daae. Der Darwin tok feil. Darwin 200 år - jubileum symposium 2009-02-11 - 2009-02-11 2009.
  • Johansen, Steinar Daae. Sequence profiling of ribozymes, regulatory RNAs, and transcriptomes. RNA NordForsk 2009-10-30 - 2009-11-02 2009.
  • Johansen, Steinar Daae. MicroRNA profiling in cod. GenoFisk workshop 2009-10-14 - 2009-10-14 2009.
  • Johansen, Steinar Daae. Sequencing the Atlantic cod genome and transcriptome. Genomics in Aquaculture 2009-07-05 - 2009-07-07 2009.
  • Johansen, Steinar Daae. Structural and functional divertsity of catalytic RNA introns. Invitasjon 2009-06-18 - 2009-06-19 2009.
  • Johansen, Steinar Daae. Structural and functional diversity of group I introns in eukaryotic microbes. Konferanse CAMST plattform (FUGE) 2009-05-07 - 2009-05-08 2009.
  • Wikmark, Odd Gunnar; Johansen, Steinar. Molecular Evolution and Adaptation of group I introns in Nuclear Ribosomal DNA. 2006.
  • Johansen, Steinar D.; Mjelle, Kenneth A; Jørgensen, Tor Erik; Karlsen, Bård O.; Moum, Truls. Genetic markers in Atlantic halibut: tools for breeding success.. Norsk Biokjemisk Selskaps vintermøte 2006-01-19 - 2006-01-22 2006.
  • Haugen, Peik; Wikmark, Odd Gunnar; Vader, A; SjØttem, eva; Johansen, Steinar. The recent transfer of a homing endonuclease gene. Tenth Annual Meeting of the RNA Society 2005-05-24 - 2005-05-29 2005.
  • Janssen, Kirstin; Moum, Truls; Erikstad, Kjell Einar; Johansen, Steinar. On the genetics, ecology and evolution of colour polymorphism. A study of the Arctic skua (Stercorarius parasiticus). 2004.
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