Results 1 to 10 of about 72,244 (252)

Genomic sequence is highly predictive of local nucleosome depletion. [PDF]

open access: yesPLoS Computational Biology, 2008
The regulation of DNA accessibility through nucleosome positioning is important for transcription control. Computational models have been developed to predict genome-wide nucleosome positions from DNA sequences, but these models consider only nucleosome ...
Guo-Cheng Yuan, Jun S Liu
doaj   +1 more source

FACT, the Bur kinase pathway, and the histone co-repressor HirC have overlapping nucleosome-related roles in yeast transcription elongation. [PDF]

open access: yesPLoS ONE, 2011
Gene transcription is constrained by the nucleosomal nature of chromosomal DNA. This nucleosomal barrier is modulated by FACT, a conserved histone-binding heterodimer.
Jennifer R Stevens   +6 more
doaj   +1 more source

Predicting nucleosome positioning using a duration Hidden Markov Model

open access: yesBMC Bioinformatics, 2010
Background The nucleosome is the fundamental packing unit of DNAs in eukaryotic cells. Its detailed positioning on the genome is closely related to chromosome functions.
Widom Jonathan   +5 more
doaj   +1 more source

NUCOME: A comprehensive database of nucleosome organization referenced landscapes in mammalian genomes

open access: yesBMC Bioinformatics, 2021
Background Nucleosome organization is involved in many regulatory activities in various organisms. However, studies integrating nucleosome organization in mammalian genomes are very limited mainly due to the lack of comprehensive data quality control (QC)
Xiaolan Chen   +3 more
doaj   +1 more source

NAP1-assisted nucleosome assembly on DNA measured in real time by single-molecule magnetic tweezers.

open access: yesPLoS ONE, 2012
While many proteins are involved in the assembly and (re)positioning of nucleosomes, the dynamics of protein-assisted nucleosome formation are not well understood.
Rifka Vlijm   +3 more
doaj   +1 more source

Distinct modes of regulation by chromatin encoded through nucleosome positioning signals.

open access: yesPLoS Computational Biology, 2008
The detailed positions of nucleosomes profoundly impact gene regulation and are partly encoded by the genomic DNA sequence. However, less is known about the functional consequences of this encoding.
Yair Field   +7 more
doaj   +1 more source

Cell cycle-specified fluctuation of nucleosome occupancy at gene promoters.

open access: yesPLoS Genetics, 2006
The packaging of DNA into nucleosomes influences the accessibility of underlying regulatory information. Nucleosome occupancy and positioning are best characterized in the budding yeast Saccharomyces cerevisiae, albeit in asynchronous cell populations or
Gregory J Hogan   +2 more
doaj   +1 more source

Defining transcription factor nucleosome binding with Pioneer-seq.

open access: yesPLoS Genetics
Gene expression requires the targeting of transcription factors (TFs) to regulatory sequences often occluded within nucleosomes. To comprehensively examine TF nucleosome binding, we developed Pioneer-Seq.
Maria Tsompana   +4 more
doaj   +1 more source

Insights into distinct regulatory modes of nucleosome positioning

open access: yesBMC Genomics, 2009
Background The nucleosome is the fundamental unit of eukaryotic genomes. Experimental evidence suggests that the genomic DNA sequence and a variety of protein factors contribute to nucleosome positioning in vivo.
Feng Jihua   +5 more
doaj   +1 more source

Diversity of eukaryotic DNA replication origins revealed by genome-wide analysis of chromatin structure. [PDF]

open access: yesPLoS Genetics, 2010
Eukaryotic DNA replication origins differ both in their efficiency and in the characteristic time during S phase when they become active. The biological basis for these differences remains unknown, but they could be a consequence of chromatin structure ...
Nicolas M Berbenetz   +2 more
doaj   +1 more source

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