Ribonucleotide reductase (RNR) catalyses the reduction of the four ribonucleotides to their corresponding deoxyribonucleotides needed for synthesis and repair of DNA. RNR is found in the genome of all living organisms, ...

The repair of DNA damage is crucial for the maintenance of genome stability. In base excision repair, lesion-specific DNA glycosylases recognize and cleave a variety of base lesions. The human Nei-like (NEIL) DNA glycosylases ...

Fusion genes have key roles in the development and progression of many human cancers. Detection of oncogenic fusion genes is already implemented in routine diagnostics and fusion proteins are targets in molecularly tailored ...

A highly conserved RNA-motif, called stem-loop-2-motif (s2m), has been identified in the 3' end of the genomes of viruses belonging to different RNA virus families which infect a broad range of animal species. Currently, ...

Bacteriocins are ribosomally synthesized antimicrobial peptides (AMPs) and proteins produced by bacteria. The two-peptide (class-IIb) bacteriocins consist of two different peptides and optimal antimicrobial activity requires ...

Varmelabilt enterotoxin (LT) er den viktigste virulensfaktoren for det bakterielle patogenet enterotoxigent Escherichia coli (ETEC), som er ansvarlig for reisediaré i utviklingsland. LT består av en enzymatisk aktiv ...

Certain species of lactic acid bacteria produce and secrete bacteriocins, which are ribosomally synthesized antimicrobial peptides. These peptides recognize and kill target cells by rendering their membrane permeable for ...

Chemokines are small, secreted proteins (5-15 kDa) that mediate leukocyte transmigration and can be secreted from endothelial cells in a constitutive or regulated manner. Regulated secretion shortens the response time to ...

The bacteriocin plantaricin J/K consists of the two peptides PlnJ and PlnK, and the two peptides must be present for optimal bacteriocin function. In this study, the three dimensional structure of the PlnJ peptide was ...

The use of monoclonal antibodies in the search for anti-cancer therapeutics has been a research field of great potential since the hybridoma technology was introduced by Köhler and Milstein in the mid 70s. The use of ...

This study is part of a project where the Chlamydomonas reindhardtii rbcL 5’UTR is analyzed for its effect on transcript stability. Two different mutated rbcL 5’UTRs were fused to GUS reporter genes, and introduced into ...

Oppgaven går videre med resultater som er funnet ved forskningsgruppen tidligere om aktivering av ribonukleotid reduktase (RNR) subenhet R2 i celler under hypoksi. Det ble funnet at celler som er gjort resistente mot et ...

Newly synthesised proteins are therefore subjected to a strict control machinery in the ER lumen where different chaperones facilitate folding during and after translocation. If the folding process is incomplete, misfolded ...

Cyanobakteriestammer fra slektene Anabaena, Microcystis, Planktothrix og Nostoc er vidt utbredt i elver og sjøer over hele jorden. Disse og andre cyanobakterier bruker store multifunksjonelle enzymer, ikke-ribosomale peptid ...

Non-ribosomal peptide synthetases (NRPSs) are highly refined natural machines for the biosynthesis of secondary oligopeptides which cannot be synthesised by the ribosomal machinery. Due to the attractive biological potential ...

Sammendrag Transkripsjonsfaktorer har en viktig rolle i normale cellefunksjoner, men har også vist seg å være involvert i kreftutvikling. Transkripsjonsfaktoren c-Myb spiller en betydelig rolle i hematopoiesen hvor den ...

Transmissible spongiform encephalopathies (TSEs) are fatal, neurodegenerative diseases in human and animals, caused by prion protein (PrP). The functions of PrP and the basis of these diseases are still under debate. In ...

Cancer is a disease resulting from an accumulation of acquired genetic mutations. The consequence is an uncontrolled growth of cells and disruption of normal control mechanisms. Complex chromosomal aberrations such as ...

Photochemical internalisation (PCI) is a method for efficient delivery of macromolecules, like genes used in gene therapy, to the cytosol of cells. Most macromolecules enter a cell by endocytosis and are trapped in the ...

The major histocompatibility (MHC) class II molecules present peptides to the T cell receptor on CD4+ lymphocytes. The diversity of the epitopes presented depends critically on the processing of the ingested antigens, and ...

Covalent modifications of the DNA and histones through acetylation, phosphorylation, methylation, etc are central to gene regulation, recombination, DNA replication and many other processes in the cell. With respect to ...

Histone lysine methylation is considered to be a relatively stable modification associated with important functions in epigenetic gene control and for organizing chromatin domains. Genes encoding mammalian homologues of ...

Abstract Nuclear receptors that work as heterodimers with RXR control several aspects of lipid metabolism. One such nuclear receptor, pregnane X receptor (PXR) is the molecular target for a wide variety of endogenous and ...

NUCKS-proteinet ble oppdaget i 1985 av Anne Carine Østvold og hennes medarbeidere ved Biokjemisk Institutt, Universitetet i Oslo. NUCKS genet er klonet og proteinet nøye karakterisert, men dets biologiske funksjon er ...