The histone chaperones Nap1 and Vps75 bind histones H3 and H4 in a tetrameric conformation [PDF]
Histone chaperones physically interact with histones to direct proper assembly and disassembly of nucleosomes regulating diverse nuclear processes such as DNA replication, promoter remodeling, transcription elongation, DNA damage, and histone variant ...
Bowman, Andrew +16 more
core +1 more source
Catalytic activation of histone acetyltransferase Rtt109 by a histone chaperone [PDF]
Most histone acetyltransferases (HATs) function as multisubunit complexes in which accessory proteins regulate substrate specificity and catalytic efficiency. Rtt109 is a particularly interesting example of a HAT whose specificity and catalytic activity require association with either of two histone chaperones, Vps75 or Asf1.
Kolonko, Erin M. +8 more
openaire +3 more sources
The histone chaperones Vps75 and Nap1 form ring-like, tetrameric structures in solution [PDF]
NAP-1 fold histone chaperones play an important role in escorting histones to and from sites of nucleosome assembly and disassembly. The two NAP-1 fold histone chaperones in budding yeast, Vps75 and Nap1, have previously been crystalized in a ...
El-Mkami, H. +31 more
core +1 more source
Histone chaperone specificity in Rtt109 activation [PDF]
Rtt109 is a histone acetyltransferase that requires a histone chaperone for the acetylation of histone 3 at lysine 56 (H3K56). Rtt109 forms a complex with the chaperone Vps75 in vivo and is implicated in DNA replication and repair. Here we show that both Rtt109 and Vps75 bind histones with high affinity, but only the complex is efficient for catalysis.
Young-Jun, Park +4 more
openaire +2 more sources
Histone modifications and the HtrA-like serine protease Nma111p regulate apoptosis in budding yeast [PDF]
Histone modifications and the HtrA-like serine protease Nma111p regulate apoptosis in budding yeast David Walter, 2010, PhD Thesis, University of Basel Apoptosis is a form of programmed cell death that plays a central role in development and ...
Walter, David
core +1 more source
Histone Chaperones as Cardinal Players in Development
Dynamicity and flexibility of the chromatin landscape are critical for most of the DNA-dependent processes to occur. This higher-order packaging of the eukaryotic genome into the chromatin is mediated by histones and associated non-histone proteins that determine the states of chromatin.
Sruthy Manuraj Rajam +4 more
openaire +3 more sources
Acetylation of histone H3 at lysine 64 regulates nucleosome dynamics and facilitates transcription [PDF]
Post-translational modifications of proteins have emerged as a major mechanism for regulating gene expression. However, our understanding of how histone modifications directly affect chromatin function remains limited.
Holzner, M. (M) +85 more
core +1 more source
Probing the (H3-H4)(2) histone tetramer structure using pulsed EPR spectroscopy combined with site-directed spin labelling [PDF]
The (H3-H4)(2) histone tetramer forms the central core of nucleosomes and, as such, plays a prominent role in assembly, disassembly and positioning of nucleosomes.
Ward, Richard +6 more
core +1 more source
Histone Variants and Their Chaperones in Hematological Malignancies
Epigenetic regulation occurs on the level of compacting DNA into chromatin. The functional unit of chromatin is the nucleosome, which consists of DNA wrapped around a core of histone proteins. While canonical histone proteins are incorporated into chromatin through a replication-coupled process, structural variants of histones, commonly named histone ...
Kirkiz, Ecem +3 more
openaire +3 more sources
Adaptive mitochondrial mechanisms allow mitochondrial resilience and prevent the worsening of fibrosis, while deregulation of these mechanisms promotes the progression from no/minimal‐mild (F0‐F2) fibrosis to advanced fibrosis and cirrhosis (F3‐F4). Abstract Background and Aims Hepatitis B virus (HBV) infection causes oxidative stress (OS) and alters ...
Dimitri Loureiro +17 more
wiley +1 more source

