Results 71 to 80 of about 99,978 (325)

Replication Fork Stability Is Essential for the Maintenance of Centromere Integrity in the Absence of Heterochromatin

open access: yesCell Reports, 2013
The centromere of many eukaryotes contains highly repetitive sequences marked by methylation of histone H3K9 by Clr4KMT1. This recruits multiple heterochromatin proteins, including Swi6 and Chp1, to form a rigid centromere and ensure accurate chromosome ...
Pao-Chen Li   +5 more
doaj   +1 more source

Alpha-satellite RNA transcripts are repressed by centromere–nucleolus associations

open access: yeseLife, 2020
Although originally thought to be silent chromosomal regions, centromeres are instead actively transcribed. However, the behavior and contributions of centromere-derived RNAs have remained unclear.
Leah Bury   +5 more
doaj   +1 more source

Pan-centromere reveals widespread centromere repositioning of soybean genomes

open access: yesProceedings of the National Academy of Sciences, 2023
Centromere repositioning refers to a de novo centromere formation at another chromosomal position without sequence rearrangement. This phenomenon was frequently encountered in both mammalian and plant species and has been implicated in genome evolution and speciation.
Yang Liu   +11 more
openaire   +2 more sources

Lipid Droplet‐Localized Spindle Apparatus Coiled‐Coil Protein 1 Regulates Lipid Droplet Distribution

open access: yesAdvanced Science, EarlyView.
SPDL1‐L, a long isoform of SPDL1, is identified as a bona fide lipid droplet‐associated protein that acts as a dynein adaptor to drive perinuclear clustering of lipid droplets. By linking lipid droplets to the microtubule network, SPDL1‐L extends the function of SPDL1 beyond mitosis and contributes to lipid droplet organization and nuclear remodeling ...
Honggang Su   +10 more
wiley   +1 more source

The micronucleus assay in radiation accidents [PDF]

open access: yes, 2009
The cytokinesis-block micronucleus assay in peripheral blood lymphocytes is a standardised and validated technique for biodosimetry. Automated scoring of micronuclei allows large scale applications as in population triage in case of radiation accidents ...
Thierens, Hubert, Vral, Anne
core   +1 more source

Transcription of satellite DNAs in insects [PDF]

open access: yes, 2011
Chromatin condensation is an important regulatory mechanism of gene silencing as well as gene activation for the hundreds of functional protein genes harbored in heterochromatic regions of different insect species.
D. Ugarkovic   +3 more
core   +1 more source

Centromere mechanical maturation during mammalian cell mitosis

open access: yesNature Communications, 2019
During mitosis, tension at the centromere occurs from the spindle but the role of centromere mechanics in controlling metaphase tension is poorly understood.
Lauren A. Harasymiw   +4 more
doaj   +1 more source

Structural Variation and 3D Genome‐Driven DNA/RNA Methylation Divergence Contributing to Cotton Fiber Domestication

open access: yesAdvanced Science, EarlyView.
These findings elucidated the crucial role of the “SVs‐3D genome remodeling‐epigenetic modifications‐gene expression” cascade regulatory network in cotton fiber domestication, offering both a theoretical foundation and genetic resources for molecular design breeding in fiber crops.
Lei Shao   +11 more
wiley   +1 more source

Clinical and serological features of systemic sclerosis in a multicenter African American cohort: Analysis of the genome research in African American scleroderma patients clinical database. [PDF]

open access: yes, 2017
Racial differences exist in the severity of systemic sclerosis (SSc). To enhance our knowledge about SSc in African Americans, we established a comprehensive clinical database from the largest multicenter cohort of African American SSc patients assembled
Boin, Francesco   +28 more
core   +1 more source

EGR Proteins Mediate Interferon‐Independent Anti‐HSV‐1 Responses Through Viral and Host Targets

open access: yesAdvanced Science, EarlyView.
Early antiviral responses are typically mediated by interferons. However, during HSV‐1 infection, host early growth response (Egr) genes, which are not interferon‐stimulated genes, are quickly induced by viral protein ICP0. EGR proteins, in turn, suppress viral lytic infection by activating viral latency‐associated (LAT) and host immune regulatory ...
Shuaishuai Wang   +4 more
wiley   +1 more source

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