Whole-genome bisulfite DNA sequencing of a DNMT3B mutant patient (Articolo in rivista)

Type
Label
  • Whole-genome bisulfite DNA sequencing of a DNMT3B mutant patient (Articolo in rivista) (literal)
Anno
  • 2012-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.4161/epi.20523 (literal)
Alternative label
  • Heyn H.; Vidal E.; Sayols S.; Sanchez-Mut J.V.; Moran S.; Medina I.; Sandoval J.; Simo-Riudalbas L.; Szczesna K.; Huertas D.; Gatto S.; Matarazzo M.R.; Dopazo J.; Esteller M. (2012)
    Whole-genome bisulfite DNA sequencing of a DNMT3B mutant patient
    in Epigenetics; Landes Bioscience, Austin (Stati Uniti d'America)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Heyn H.; Vidal E.; Sayols S.; Sanchez-Mut J.V.; Moran S.; Medina I.; Sandoval J.; Simo-Riudalbas L.; Szczesna K.; Huertas D.; Gatto S.; Matarazzo M.R.; Dopazo J.; Esteller M. (literal)
Pagina inizio
  • 542 (literal)
Pagina fine
  • 550 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 7 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 6 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Bellvitge Biomed Res Inst IDIBELL, Canc Epigenet & Biol Program PEBC, Barcelona, Catalonia, Spain CIPF, Dept Bioinformat, Valencia, Spain CIBERER, Valencia, Spain CIPF, Funct Genom Node INB, Valencia, Spain CNR, Inst Genet & Biophys ABT, I-80125 Naples, Italy Univ Barcelona, Sch Med, Dept Physiol Sci 2, Barcelona, Catalonia, Spain ICREA, Barcelona, Catalonia, Spain (literal)
Titolo
  • Whole-genome bisulfite DNA sequencing of a DNMT3B mutant patient (literal)
Abstract
  • The immunodeficiency, centromere instability and facial anomalies (ICF) syndrome is associated to mutations of the DNA methyl-transferase DNMT3B, resulting in a reduction of enzyme activity. Aberrant expression of immune system genes and hypomethylation of pericentromeric regions accompanied by chromosomal instability were determined as alterations driving the disease phenotype. However, so far only technologies capable to analyze single loci were applied to determine epigenetic alterations in ICF patients. In the current study, we performed whole-genome bisulphite sequencing to assess alteration in DNA methylation at base pair resolution. Genome-wide we detected a decrease of methylation level of 42%, with the most profound changes occurring in inactive heterochromatic regions, satellite repeats and transposons. Interestingly, transcriptional active loci and rRNA repeats escaped global hypomethylation. Despite a genome-wide loss of DNA methylation the epigenetic landscape and crucial regulatory structures were conserved. Remarkably, we revealed a mislocated activity of mutant DNMT3B to H3K4me1 loci resulting in hypermethylation of active promoters. Functionally, we could associate alterations in promoter methylation with the ICF syndrome immunodeficient phenotype by detecting changes in genes related to the B-cell receptor mediated maturation pathway. (literal)
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