000 01937nam a2200301Ia 4500
003 MX-MdCICY
005 20250625153905.0
040 _cCICY
090 _aB-12682
245 1 0 _aGenome-wide mapping of Arabidopsis thaliana origins of DNA replication and their associated epigenetic marks
490 0 _vNature Structural & Molecular Biology, 18, p.395-400, 2011
520 3 _aGenome integrity requires faithful chromosome duplication. Origins of replication, the genomic sites at which DNA replication initiates, are scattered throughout the genome. Their mapping at a genomic scale in multicellular organisms has been challenging. In this study we profiled origins in Arabidopsis thaliana by high-throughput sequencing of newly synthesized DNA and identified ~1,500 putative origins genome-wide. This was supported by chromatin immunoprecipitation and microarray (ChIP-chip)experiments to identify ORC1- and CDC6-binding sites. We validated origin activity independently by measuring the abundance of nascent DNA strands. The midpoints of most A. thaliana origin regions are preferentially located within the 5_O half of genes, enriched in G+C, histone H2A.Z, H3K4me2, H3K4me3 and H4K5ac, and depleted in H3K4me1 1 and H3K9me2. Our data help clarify the epigenetic specification of DNA replication origins in A. thaliana and have implications for other eukaryotes.
700 1 2 _aCostas, C.
700 1 2 _aSanchez, M.
700 1 2 _aStroud, H.
700 1 2 _aYu, Y.
700 1 2 _aOliveros, J.C.
700 1 2 _aFeng, S.
700 1 2 _aBenguria, A.
700 1 2 _aBenguria, A.
700 1 2 _aZhang, X.
700 1 2 _aSolano, R.
700 1 2 _aJacobsen, S.E.
700 1 2 _aGutierrez, C.
856 4 0 _uhttps://drive.google.com/file/d/1J7YDYNbMLA6RRqUOEeyZkSlkpqYQXSAU/view?usp=drivesdk
_zPara ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942 _2Loc
_cREF1
008 250602s9999 xx |||||s2 |||| ||und|d
999 _c46889
_d46889