• 5-hydroxymethylcytosine marks mammalian origins acting as a barrier to replication 

      Prikrylova, Terezia; Robertson, Julia; Ferrucci, Francesca; Konorska, Dorota Joanna; Aanes, Håvard; Manaf, Adeel; Zhang, Beibei; Vågbø, Cathrine Broberg; Kusnierczyk, Anna; Gilljam, Karin Margaretha; Løvkvam-Køster, Caroline; Otterlei, Marit; Dahl, John Arne; Enserink, Jorrit; Klungland, Arne; Robertson, Adam Brian (Journal article; Peer reviewed, 2019)
      In most mammalian cells, DNA replication occurs once, and only once between cell divisions. Replication initiation is a highly regulated process with redundant mechanisms that prevent errant initiation events. In lower ...
    • A novel method for the efficient and selective identification of 5-hydroxymethylcytosine in genomic DNA 

      Robertson, Adam Brian; Dahl, John Arne; Vågbø, Cathrine Broberg; Tripathi, P; Krokan, Hans Einar; Klungland, Arne (Journal article; Peer reviewed, 2011)
      Recently, 5-hydroxymethylcytosine (5hmC) was identified in mammalian genomic DNA. The biological role of this modification remains unclear; however, identifying the genomic location of this modified base will assist in ...
    • DNA base modifications in honey bee and fruit fly genomes suggest an active demethylation machinery with species- and tissue-specific turnover rates 

      Rasmussen, Erik; Vågbø, Cathrine Broberg; Münch, Daniel; Krokan, Hans Einar; Klungland, Arne; Amdam, Gro Vang; Dahl, John Arne (Journal article; Peer reviewed, 2016)
      Well-known epigenetic DNA modifications in mammals include the addition of a methyl group and a hydroxyl group to cytosine, resulting in 5-methylcytosine (5mC) and 5-hydroxymethylcytosine (5hmC) respectively. In contrast, ...
    • Genome-wide profiling of DNA 5-hydroxymethylcytosine during rat Sertoli cell maturation 

      Landfors, Miriam; Johansen, Jostein; Aronsen, Jan Magnus; Vågbø, Cathrine Broberg; Doré, Louis C.; He, Chuan; Sjaastad, Ivar; Sætrom, Pål; Fedorcsák, Péter; Dahl, John Arne; Aanes, Håvard; Fusser, Markus; Klungland, Arne (Journal article; Peer reviewed, 2017)
      Sertoli cells have dual roles during the cells’ lifetime. In the juvenile mammal, Sertoli cells proliferate and create the structure of the testis, and during puberty they cease to proliferate and take on the adult role ...
    • Histone methylations define neural stem/progenitor cell subtypes in the mouse subventricular zone 

      Zhang, Zhichao; Manaf, Adeel; Li, Yanjiao; Pérez, Sonia Peña; Suganthan, Rajikala; Dahl, John Arne; Bjørås, Magnar; Klungland, Arne (Journal article; Peer reviewed, 2019)
      Neural stem/progenitor cells (NSPCs) persist in the mammalian brain throughout life and can be activated in response to the physiological and pathophysiological stimuli. Epigenetic reprogramming of NPSC represents a novel ...