Results 11 to 20 of about 253,651 (260)
Interaction of the pioneer transcription factor GATA3 with nucleosomes
Nature Communications, 2020 GATA 3 functions as a pioneer factor during cellular reprogramming. Here the authors delineate nucleosome positioning relative to GATA3 binding motifs and describe the structure of a GATA3–nucleosome complex; providing insight into how a pioneer factor ...
Hiroki Tanaka +7 more
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Internal modifications in the CENP-A nucleosome modulate centromeric dynamics
Epigenetics & Chromatin, 2017 Background Posttranslational modifications of core histones are correlated with changes in transcriptional status, chromatin fiber folding, and nucleosome dynamics. However, within the centromere-specific histone H3 variant CENP-A, few modifications have
Minh Bui +7 more
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Current Opinion in Structural Biology, 2022 Eukaryotic DNA is packaged into nucleosomes, which further condenses into chromosomes. The telomeres, which form the protective end-capping of chromosomes, play a pivotal role in ageing and cancer. Recently, significant advances have been made in understanding the nucleosomal and telomeric chromatin structure at the molecular level. In addition, recent
Aghil Soman +2 more
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Nature Communications, 2021 Human T-cell lymphotropic virus type 1 (HTLV-1) is an oncogenic deltaretrovirus. Here the authors provide structural characterization of the binding mechanism of novel integrase strand transfer inhibitor (INSTI) candidates to limit HTLV-1 infection.
Michal S. Barski +10 more
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Job Opening for Nucleosome Mechanic: Flexibility Required
Cells, 2020 The nucleus has been studied for well over 100 years, and chromatin has been the intense focus of experiments for decades. In this review, we focus on an understudied aspect of chromatin biology, namely the chromatin fiber polymer’s mechanical ...
Mary Pitman +2 more
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Unbiased high-throughput characterization of mussel transcriptomic responses to sublethal concentrations of the biotoxin okadaic acid [PDF]
PeerJ, 2015 Background. Harmful Algal Blooms (HABs) responsible for Diarrhetic Shellfish Poisoning (DSP) represent a major threat for human consumers of shellfish. The biotoxin Okadaic Acid (OA), a well-known phosphatase inhibitor and tumor promoter, is the primary ...
Victoria Suarez-Ulloa +7 more
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Structural Transition of the Nucleosome during Transcription Elongation
Cells, 2023 In eukaryotes, genomic DNA is tightly wrapped in chromatin. The nucleosome is a basic unit of chromatin, but acts as a barrier to transcription. To overcome this impediment, the RNA polymerase II elongation complex disassembles the nucleosome during ...
Tomoya Kujirai +3 more
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The cryo‐EM structure of full‐length RAD52 protein contains an undecameric ring
FEBS Open Bio, 2023 The human RAD52 protein, which forms an oligomeric ring structure, is involved in DNA double‐strand break repair. The N‐terminal half of RAD52 is primarily responsible for self‐oligomerisation and DNA binding.
Chiaki Kinoshita +5 more
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Chromatin and nucleosome structure [PDF]
Nucleic Acids Research, 1976 Chromatin nucleosomes (mononucleosomes through pentanucleosomes) have been isolated by staphylococcal nuclease digestion of calf thymus nuclei. The peak value ellipticity is the same for all oligomers, 1900 deg cm2, mol-1 at 280-nm, 23 degrees C. The dh280/dT vs T show a progressive increase in Tm of the main thermal band (73.5 degrees C, monomer; 79 ...
R, Mandel, G D, Fasman
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A model for chromatin structure [PDF]
Nucleic Acids Research, 1975 A model for chromatin structure is presented. (a) Each of four histone species, H2A (IIbl or f2a2), H2B (IIb2 or f2b), H3 (III or f3) and H4 (IV or f2al) can form a parallel dimer. (b) These dimers can form two tetramers, (H2A)2(H2b)2 and (H3)2(H4)2. (C) These two tetramers bind a segment of DNA and condense it into a "C" segments.
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