Results 21 to 30 of about 119,158 (272)

Comprehensive analysis of the chromatin landscape in Drosophila melanogaster. [PDF]

open access: yes, 2010
Chromatin is composed of DNA and a variety of modified histones and non-histone proteins, which have an impact on cell differentiation, gene regulation and other key cellular processes.
Alekseyenko, Artyom A   +29 more
core   +4 more sources

UBR2 of the N-end rule pathway is required for chromosome stability via histone ubiquitylation in spermatocytes and somatic cells [PDF]

open access: yes, 2012
The N-end rule pathway is a proteolytic system in which its recognition components (N-recognins) recognize destabilizing N-terminal residues of short-lived proteins as an essential element of specific degrons, called N-degrons.
An, JY   +12 more
core   +1 more source

Spt2p defines a new transcription-dependent gross chromosomal rearrangement pathway.

open access: yesPLoS Genetics, 2008
Large numbers of gross chromosomal rearrangements (GCRs) are frequently observed in many cancers. High mobility group 1 (HMG1) protein is a non-histone DNA-binding protein and is highly expressed in different types of tumors.
Nilabja Sikdar   +4 more
doaj   +1 more source

c-Myc-Induced Extrachromosomal Elements Carry Active Chromatin

open access: yesNeoplasia: An International Journal for Oncology Research, 2003
Murine Pre-13 lymphocytes with experimentally activated MycER show both chromosomal and extrachromosomal gene amplification. In this report, we have elucidated the size, structure, functional components of c-Myc-induced extrachromosomal elements (EEs ...
Greg Smith   +5 more
doaj   +1 more source

CenH3 distribution reveals extended centromeres in the model beetle Tribolium castaneum.

open access: yesPLoS Genetics, 2020
Centromeres are chromosomal domains essential for kinetochore assembly and correct chromosome segregation. Inconsistent in their underlying DNA sequences, centromeres are defined epigenetically by the presence of the centromere-specific histone H3 ...
Tena Gržan   +4 more
doaj   +1 more source

Sequence-specific targeting of dosage compensation in Drosophila favors an active chromatin context. [PDF]

open access: yesPLoS Genetics, 2012
The Drosophila MSL complex mediates dosage compensation by increasing transcription of the single X chromosome in males approximately two-fold. This is accomplished through recognition of the X chromosome and subsequent acetylation of histone H4K16 on X ...
Artyom A Alekseyenko   +18 more
doaj   +1 more source

Histone H3 lysine 56 acetylation by Rtt109 is crucial for chromosome positioning [PDF]

open access: yes, 2008
Peer reviewedPublisher ...
Botsios, Sotirios   +2 more
core   +3 more sources

Emerging roles of telomeric chromatin alterations in cancer [PDF]

open access: yes, 2019
Telomeres, the nucleoprotein structures that cap the ends of eukaryotic chromosomes, play important and multiple roles in tumorigenesis. Functional telomeres need the establishment of a protective chromatin structure based on the interplay between the ...
Biroccio, Annamaria   +2 more
core   +1 more source

DNA Modifications: Function and Applications in Normal and Disease States

open access: yesBiology, 2014
Epigenetics refers to a variety of processes that have heritable effects on gene expression programs without changes in DNA sequence. Key players in epigenetic control are chemical modifications to DNA, histone, and non-histone chromosomal proteins ...
Vichithra R. B. Liyanage   +5 more
doaj   +1 more source

Chipping away at gamma-H2AX foci [PDF]

open access: yes, 2009
The mammalian histone H2AX protein functions as a dosage-dependent genomic caretaker and tumor suppressor. Phosphorylation of H2AX to form gamma-H2AX in chromatin around DNA double strand breaks (DSBs) is an early event following induction of these ...
Bassing, Craig H   +3 more
core   +1 more source

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