Results 51 to 60 of about 223,415 (361)

RNA polymerase II stalling promotes nucleosome occlusion and pTEFb recruitment to drive immortalization by Epstein-Barr virus [PDF]

open access: yes, 2011
Epstein-Barr virus (EBV) immortalizes resting B-cells and is a key etiologic agent in the development of numerous cancers. The essential EBV-encoded protein EBNA 2 activates the viral C promoter (Cp) producing a message of ~120 kb that is differentially ...
A Bakos   +75 more
core   +3 more sources

A cancer-specific antigen drives histone acetylation by stabilizing the acetyltransferases

open access: yesCell Reports
Summary: Histone acetylation is a critical modification that regulates gene expression by modulating chromatin structure and function. Histone acetyltransferases are essential for maintaining acetylation homeostasis, and the disruption of this balance ...
Xuekun Fu   +5 more
doaj   +1 more source

Combinatorial H3K9acS10ph Histone Modification in IgH Locus S Regions Targets 14-3-3 Adaptors and AID to Specify Antibody Class-Switch DNA Recombination

open access: yesCell Reports, 2013
Class-switch DNA recombination (CSR) is central to the antibody response, in that it changes the immunoglobulin heavy chain (IgH) constant region, thereby diversifying biological effector functions of antibodies. The activation-induced cytidine deaminase
Guideng Li   +8 more
doaj   +1 more source

Characterization of Histone Deacetylase Mechanisms in Cancer Development

open access: yesFrontiers in Oncology, 2021
Over decades of studies, accumulating evidence has suggested that epigenetic dysregulation is a hallmark of tumours. Post-translational modifications of histones are involved in tumour pathogenesis and development mainly by influencing a broad range of ...
Rihan Hai   +5 more
doaj   +1 more source

Epigenetic Chromatin Silencing: Bistability and Front Propagation

open access: yes, 2007
The role of post-translational modification of histones in eukaryotic gene regulation is well recognized. Epigenetic silencing of genes via heritable chromatin modifications plays a major role in cell fate specification in higher organisms.
Alberts B   +13 more
core   +1 more source

Targeted Derepression of the Human Immunodeficiency Virus Type 1 Long Terminal Repeat by Pyrrole-Imidazole Polyamides [PDF]

open access: yes, 2002
The host factor LSF represses the human immunodeficiency virus type 1 long terminal repeat (LTR) by mediating recruitment of histone deacetylase. We show that pyrrole-imidazole polyamides targeted to the LTR can specifically block LSF binding both in ...
Coull, Jason J.   +5 more
core   +1 more source

Lysine acetyltransferase 5 in EGFR mutated non-small cell lung cancer [PDF]

open access: yes, 2018
Histone modifications are crucial in activities such as transcriptional activation, gene silencing, and epigenetic cellular memory. In particular, lysine acetylation via lysine (K) acetyltransferases (KATs) has been implicated in cancer development ...
Pan, Gilbert
core  

Role of the unique N-terminal domain of CtBP2 in determining the subcellular localisation of CtBP family proteins [PDF]

open access: yes, 2006
BACKGROUND: CtBP1 and CtBP2 are transcriptional co-repressors that modulate the activity of a large number of transcriptional repressors via the recruitment of chromatin modifiers.
Bergman, Lee M.   +5 more
core   +2 more sources

Disordered but rhythmic—the role of intrinsic protein disorder in eukaryotic circadian timing

open access: yesFEBS Letters, EarlyView.
Unstructured domains known as intrinsically disordered regions (IDRs) are present in nearly every part of the eukaryotic core circadian oscillator. IDRs enable many diverse inter‐ and intramolecular interactions that support clock function. IDR conformations are highly tunable by post‐translational modifications and environmental conditions, which ...
Emery T. Usher, Jacqueline F. Pelham
wiley   +1 more source

Regulation of transcription by the Arabidopsis UVR8 photoreceptor involves a specific histone modification [PDF]

open access: yes, 2016
The photoreceptor UV RESISTANCE LOCUS 8 (UVR8) specifically mediates photomorphogenic responses to UV-B wavelengths. UVR8 acts by regulating transcription of a set of genes, but the underlying mechanisms are unknown. Previous research indicated that UVR8
Herzyk, Pawel   +2 more
core   +1 more source

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