ArticleEuropean biophysics journal : EBJ2007
Organisation of nucleosomal arrays reconstituted with repetitive African green monkey alpha-satellite DNA as analysed by atomic force microscopy.
Article in European biophysics journal : EBJ, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 21 citations in OpenAlex.
- DNA accessibility of chromatosomes quantified by automated image analysis of AFM data.Scientific reports · 2019Article
- Effects of charge-modifying mutations in histone H2A α3-domain on nucleosome stability assessed by single-pair FRET and MD simulations.Scientific reports · 2017Article
- Nanoscale Nucleosome Dynamics Assessed with Time-lapse AFM.Biophysical reviews · 2014Article
- CENP-A confers a reduction in height on octameric nucleosomes.Nature structural & molecular biology · 2013Article
- Spatial localization of genes determined by intranuclear DNA fragmentation with the fusion proteins lamin KRED and histone KRED und visible light.International journal of medical sciences · 2013Article
- Mechanics of the IL2RA gene activation revealed by modeling and atomic force microscopy.PloS one · 2011Article
- Distinct influences of tandem repeats and retrotransposons on CENH3 nucleosome positioning.Epigenetics & chromatin · 2011Article
- Positioning effects of KillerRed inside of cells correlate with DNA strand breaks after activation with visible light.International journal of medical sciences · 2011Article
- Nucleosomes structure and dynamics: effect of CHAPS.International journal of biochemistry and molecular biology · 2011Article
- Nucleosome positioning by genomic excluding-energy barriers.Proceedings of the National Academy of Sciences of the United States of America · 2009Article
- Escherichia coli low-copy-number plasmid R1 centromere parC forms a U-shaped complex with its binding protein ParR.Nucleic acids research · 2008Article
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Authors and funding
5 authors at 3 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Alpha-satellite DNA (AS) is part of centromeric DNA and could be relevant for centromeric chromatin structure: its repetitive character may generate a specifically ordered nucleosomal arrangement and thereby facilitate kinetochore protein binding and chromatin condensation. Although nucleosomal positioning on some satellite sequences had been shown, including AS from African green monkey (AGM), the sequence-dependent nucleosomal organisation of repetitive AS of this species has so far not been analysed. We therefore studied the positioning of reconstituted nucleosomes on AGM AS tandemly repeated DNA. Enzymatic analysis of nucleosome arrays formed on an AS heptamer as well as the localisation of mononucleosomes on an AS dimer by atomic force microscopy (AFM) showed one major positioning frame, in agreement with earlier results. The occupancy of this site was in the range of 45-50%, in quite good agreement with published in vivo observations. AFM measurements of internucleosomal distances formed on the heptamer indicated that the nucleosomal arrangement is governed by sequence-specific DNA-histone interactions yielding defined internucleosomal distances, which, nevertheless, are not compatible with a uniform phasing of the nucleosomes with the AGM AS repeats.
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