Results 91 to 100 of about 26,352 (303)

An asymmetric centromeric nucleosome

open access: yeseLife, 2018
Nucleosomes contain two copies of each core histone, held together by a naturally symmetric, homodimeric histone H3-H3 interface. This symmetry has complicated efforts to determine the regulatory potential of this architecture. Through molecular design and in vivo selection, we recently generated obligately heterodimeric H3s, providing a powerful tool ...
Yuichi Ichikawa   +2 more
openaire   +4 more sources

High Sugar Induced RCC2 Lactylation Drives Breast Cancer Tumorigenicity Through Upregulating MAD2L1

open access: yesAdvanced Science, EarlyView.
This study finds that KAT2A mediates the lactylation modification of the non‐histone protein RCC2 at K124, facilitating the recruitment of free SERBP1 and aiding in the formation of the initial SERBP1‐MAD2L1 complex. SERBP1 enhances the stability of MAD2L1 mRNA and promotes cellular proliferation.
Bowen Zheng   +11 more
wiley   +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

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

SUMO control of centromere homeostasis

open access: yesFrontiers in Cell and Developmental Biology, 2023
Centromeres are unique chromosomal loci that form the anchorage point for the mitotic spindle during mitosis and meiosis. Their position and function are specified by a unique chromatin domain featuring the histone H3 variant CENP-A.
Sebastiaan J. W. van den Berg   +2 more
doaj   +1 more source

What's in a centromere?

open access: yesGenome biology, 2004
The complete sequence of rice centromere 8 reveals a small amount of centromere-specific satellite sequence in blocks interrupted by retrotransposons and other repetitive DNA, in an arrangement that is strikingly similar in overall size and content to other centromeres of multicellular eukaryotes.
James Theuri   +2 more
openaire   +3 more sources

A genome-wide survey of genetic variation in gorillas using reduced representation sequencing [PDF]

open access: yes, 2013
All non-human great apes are endangered in the wild, and it is therefore important to gain an understanding of their demography and genetic diversity. To date, however, genetic studies within these species have largely been confined to mitochondrial DNA and a small number of other loci.
arxiv   +1 more source

Enhancer Extrachromosomal Circular DNA ANKRD28 Elicits Drug Resistance via POU2F2‐Mediated Transcriptional Network in Multiple Myeloma

open access: yesAdvanced Science, EarlyView.
Enhancer eccANKRD28‐manipulated MM cells have been demonstrated to facilitate drug resistance and promote MM progression by activating the key transcription factor, POU2F2. POU2F2 interacts with sequence‐specific eccANKRD28 as well as RUNX1 and RUNX2 motifs to form the protein complex, which activates the promoter of oncogenes (IRF4, JUNB, IKZF3, et al.
Binzhen Chen   +12 more
wiley   +1 more source

Neocentromeres Provide Chromosome Segregation Accuracy and Centromere Clustering to Multiple Loci along a Candida albicans Chromosome. [PDF]

open access: yesPLoS Genetics, 2016
Assembly of kinetochore complexes, involving greater than one hundred proteins, is essential for chromosome segregation and genome stability. Neocentromeres, or new centromeres, occur when kinetochores assemble de novo, at DNA loci not previously ...
Laura S Burrack   +12 more
doaj   +1 more source

Inbreeding drives maize centromere evolution

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2016
Significance The diversity of centromere-specific DNA repeats in different species (centromere paradox) and the seemingly parallel rapid evolution of the cenH3 histone protein have previously been interpreted to be related to evolutionary pressures ...
Kevin L. Schneider   +3 more
semanticscholar   +1 more source

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