Results 91 to 100 of about 133,661 (356)
The Journal of Cell Biology, 2005 In 1953—the year that Watson and Crick published those findings “of considerable biological interest”—Howard and Pelc (1953) showed that DNA synthesis occurred in a discrete phase of the cell cycle. They had labeled DNA with radioactive phosphate.
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Targeting and regulatory mechanisms in chromosome-wide gene regulation using Drosophila melanogaster as a model organism [PDF]
, 2010 Tese de mestrado. Biologia (Biologia Molecular e Genética). Universidade de Lisboa, Faculdade de Ciências, 2010O cromossoma 4 de Drosophila melanogaster é muito heterocromático, sendo rico em DNA satélite e DNA de elementos transposáveis. Apesar das suas
Figueiredo, Ana Margarida Adónis, 1986-
core
UHRF1 Controls the Timing of RAD51 Removal During DNA Damage Repair Through Suppressing RFWD3
Advanced Science, EarlyView.We demonstrate here that the recombinase RAD51 is protected by UHRF1 through ubiquitinating RFWD3, an E3 for RAD51, and this very process is inhibited by RAD51, leading to a triple negative feedback circuit that ensures appropriate levels of RFWD3 and RAD51 for DNA damage response. Abstract The RAD51 recombinase is evolutionarily conserved critical for
Guangxue Liu +4 more
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Selfish centromeres, selfless heterochromatin
Cell, 2021 Centromeres are specialized regions on chromosomes recruiting a set of proteins required for faithful chromosome segregation. Differences in centromere strength can potentially bias chromosome segregation toward one of the daughter cells during division. Kumon et al. propose a new model of evolutionary impact on the balance of centromere strength.
Nikalayevich, Elvira +1 more
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A molecular cytogenetic perspective on chromosome biology and crop improvement. [PDF]
Plant GenomeAbstract The age of molecular cytogenetic analysis of crop plants dawned in the late 1960s and early 1970s with new advances in the identification of somatic chromosomes by C‐banding and fluorescence in situ hybridization concurrent with advances in DNA cloning, sequencing, and mapping. In this perspective article dedicated to Ronald Phillips, I review
Gill BS.
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The Drosophila histone variant H2A.V works in concert with HP1 to promote kinetochore-driven microtubule formation [PDF]
, 2015 Unlike other organisms that have evolved distinct H2A variants for different functions, Drosophila melanogaster has just one variant which is capable of filling many roles.
Cenci, Giovanni, Verni', Fiammetta
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Advanced Science, EarlyView.Liver aging is characterized by a decline in the expression of the SUMO‐conjugating enzyme Ubc9, resulting in reduced SUMOylation levels in hepatocytes, particularly in the case of ribosomal protein RPL3. Disruption of RPL3 SUMOylation increases its nuclear translocation. Interestingly, ribosome‐free RPL3 facilitates the recruitment of helicase DHX9 to
Hao Xie +22 more
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Early-replicating heterochromatin [PDF]
Genes & Development, 2003 Euchromatin, which has an open structure and is frequently transcribed, tends to replicate in early S phase. Heterochromatin, which is more condensed and rarely transcribed, usually replicates in late S phase. Here, we report significant deviation from this correlation in the fission yeast,Schizosaccharomyces pombe.
Soo-Mi Kim +2 more
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The HSV-1 Latency-Associated Transcript Functions to Repress Latent Phase Lytic Gene Expression and Suppress Virus Reactivation from Latently Infected Neurons [PDF]
, 2016 open access articleHerpes simplex virus 1 (HSV-1) establishes life-long latent infection within sensory neurons, during which viral lytic gene expression is silenced.
Coleman, Heather M. +7 more
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Advanced Science, EarlyView.Cyclic stretching of fibroblasts triggers coordinated nuclear mechanosensing events, including calcium ion release, perinuclear actin assembly, emerin translocation, and H3K9me3 loss, increasing chromatin accessibility for specific genes related to mechanotransduction and repair.
Hye‐Won Shim +10 more
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