Results 1 to 10 of about 109,383 (351)

Toward a molecular understanding of yeast silent chromatin : roles for H4K16 acetylation and the Sir3 C-terminus [PDF]

open access: yes, 2012
Discrete regions of the eukaryotic genome assume a heritable chromatin structure that is refractory to gene expression. In budding yeast, silent chromatin is characterized by the loading of the Silent Information Regulatory (Sir) proteins (Sir2, Sir3 and
Oppikofer, Mariano
core   +1 more source

Desempenho diagnóstico e associações clínicas dos anticorpos contra componentes da cromatina no lúpus eritematoso sistêmico juvenil Diagnostic performance and clinical associations of antibodies to the chromatin antigenic system in juvenile systemic lupus erythematosus

open access: yesRevista Brasileira de Reumatologia, 2012
OBJETIVOS: Determinar a frequência de anticorpos contra componentes da cromatina no lúpus eritematoso sistêmico juvenil (LESJ) e correlacionar a presença desses autoanticorpos com manifestações clínicas e atividade da doença.
Silene Peres Keusseyan   +5 more
doaj   +1 more source

HP1 reshapes nucleosome core to promote phase separation of heterochromatin [PDF]

open access: yes, 2019
Heterochromatin affects genome function at many levels. It enables heritable gene repression, maintains chromosome integrity and provides mechanical rigidity to the nucleus1,2.
Burlingame, AL   +8 more
core  

A quantitative investigation of linker histone interactions with nucleosomes and chromatin

open access: yesScientific Reports, 2016
Linker histones such as H1 are abundant basic proteins that bind tightly to nucleosomes, thereby acting as key organizers of chromatin structure. The molecular details of linker histone interactions with the nucleosome and in particular the contributions
Alison E. White, Aaron R Hieb, K. Luger
semanticscholar   +1 more source

Accessibility of promoter DNA is not the primary determinant of chromatin-mediated gene regulation [PDF]

open access: yes, 2019
DNA accessibility is thought to be of major importance in regulating gene expression. We test this hypothesis using a restriction enzyme as a probe of chromatin structure and as a proxy for transcription factors.
Chereji, Razvan V.   +4 more
core   +1 more source

Transfer learning reveals sequence determinants of the quantitative response to transcription factor dosage

open access: yesCell Genomics
Summary: Deep learning models have advanced our ability to predict cell-type-specific chromatin patterns from transcription factor (TF) binding motifs, but their application to perturbed contexts remains limited.
Sahin Naqvi   +6 more
doaj   +1 more source

Job Opening for Nucleosome Mechanic: Flexibility Required

open access: yesCells, 2020
The nucleus has been studied for well over 100 years, and chromatin has been the intense focus of experiments for decades. In this review, we focus on an understudied aspect of chromatin biology, namely the chromatin fiber polymer’s mechanical ...
Mary Pitman   +2 more
doaj   +1 more source

Circulating Nucleosomes and Histones in the Development of Lung Injury and Sepsis

open access: yesCurrent Issues in Molecular Biology
Cellular nucleosomes—the structural and functional units of chromatin—are inherently present in cells. During cellular damage or cell death, nucleosomes are released into circulation, either actively or passively.
Saugata Dutta   +5 more
doaj   +1 more source

Proximal-end bias from in-vitro reconstituted nucleosomes and the result on downstream data analysis.

open access: yesPLoS ONE, 2021
The most basic level of eukaryotic gene regulation is the presence or absence of nucleosomes on DNA regulatory elements. In an effort to elucidate in vivo nucleosome patterns, in vitro studies are frequently used.
David A Bates   +7 more
doaj   +1 more source

The size of the nucleosome [PDF]

open access: yes, 2011
The structural origin of the size of the 11 nm nucleosomal disc is addressed. On the nanometer length-scale the organization of DNA as chromatin in the chromosomes involves a coiling of DNA around the histone core of the nucleosome.
A. Travers   +3 more
core   +2 more sources

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