Results 81 to 90 of about 92,899 (342)

Phase Separation of SF3B1 Serves as a Critical Post‐Transcriptional Regulator During Early Mouse Embryogenesis

open access: yesAdvanced Science, EarlyView.
Phase separation of SF3B1 acts as a key regulatory mechanism for dynamic alternative splicing throughout early mouse embryogenesis. Its absence triggers extensive splicing errors, which induce persistent DNA damage, defective cell cycle progression, and failed cell lineage commitment, and ultimately hinder the normal growth and development of ...
Kang Zhao   +15 more
wiley   +1 more source

Repetitive Fragile Sites: Centromere Satellite DNA as a Source of Genome Instability in Human Diseases

open access: yesGenes, 2018
Maintenance of an intact genome is essential for cellular and organismal homeostasis. The centromere is a specialized chromosomal locus required for faithful genome inheritance at each round of cell division.
E. M. Black, Simona Giunta
semanticscholar   +1 more source

Centromere RNA is a key component for the assembly of nucleoproteins at the nucleolus and centromere [PDF]

open access: yes, 2007
The centromere is a complex structure, the components and assembly pathway of which remain inadequately defined. Here, we demonstrate that centromeric alpha-satellite RNA and proteins CENPC1 and INCENP accumulate in the human interphase nucleolus in an ...
E. Williams   +21 more
core   +1 more source

A Living Multi‐Omics PDX Biobank of High‐Risk Sarcomas Reveals ecDNA‐Driven Oncogene Amplification in Osteosarcoma and Enables Preclinical Precision Oncology

open access: yesAdvanced Science, EarlyView.
A living multi‐omics sarcoma PDX biobank is enriched for high‐risk disease and preserves key patient tumor features at histopathological and molecular levels. Integrated profiling reveals ecDNA‐driven oncogene amplification in osteosarcoma and preferential retention of ecDNA during PDX evolution.
Weisong Zhao   +34 more
wiley   +1 more source

Centromere repositioning causes inversion of meiosis and generates a reproductive barrier

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
Significance Mutations in inner kinetochore components induce centromere repositioning without alteration in the centromeric DNA sequence, revealing a feedback mechanism underlying the high epigenetic stability of the centromere.
Min Lu, Xiang-Wei He
semanticscholar   +1 more source

Gapless Complete Genome and Multi‐Omics Illuminate Immune Adaptation and Host‐Virus Interactions in a Coronavirus Reservoir

open access: yesAdvanced Science, EarlyView.
We present a complete T2T genome assembly for a key bat reservoir. Integrating population genomics, comparative genomics, transcriptomics, single‐cell omics, and functional assays, we resolve previously inaccessible genomic regions and identify evolutionary signatures associated with immune adaptation.
Yuting Wang   +15 more
wiley   +1 more source

Structure of centromere chromatin: from nucleosome to chromosomal architecture. [PDF]

open access: yes, 2016
The centromere is essential for the segregation of chromosomes, as it serves as attachment site for microtubules to mediate chromosome segregation during mitosis and meiosis.
Florian A. Steiner (7735019)   +1 more
core   +4 more sources

Selective Y centromere inactivation triggers chromosome shattering in micronuclei and repair by canonical NHEJ

open access: yesNature Cell Biology, 2016
Chromosome missegregation into a micronucleus can cause complex and localized genomic rearrangements known as chromothripsis, but the underlying mechanisms remain unresolved.
P. Ly   +7 more
semanticscholar   +1 more source

Centromere-linked LacO position in wildtype and anaphase cells.

open access: yes, 2016
GAL-CEN3 proximal lacO arrays in metaphase (A) (n = 84 to 92 cells) and anaphase (B) (n = 34 to 51 cells) cells. Cells were grown on galactose for 3h prior to image analysis.
Benjamin Harrison (2634193)   +8 more
core   +1 more source

Genetic dissection of centromere function. [PDF]

open access: yes, 1993
A system to detect a minimal function of Saccharomyces cerevisiae centromeres in vivo has been developed. Centromere DNA mutants have been examined and found to be active in a plasmid copy number control assay in the absence of segregation.
Schulman, I G   +3 more
core   +1 more source

Home - About - Disclaimer - Privacy