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High resolution positioning of intron ends on the nucleosomes
J. Hapala, EN. Trifonov,
Jazyk angličtina Země Nizozemsko
Typ dokumentu časopisecké články, práce podpořená grantem
- MeSH
- dánio pruhované genetika MeSH
- histony metabolismus MeSH
- introny MeSH
- kur domácí genetika MeSH
- lidé MeSH
- molekulární sekvence - údaje MeSH
- myši MeSH
- nukleozomy genetika MeSH
- psi MeSH
- sekvence nukleotidů MeSH
- zvířata MeSH
- Check Tag
- lidé MeSH
- myši MeSH
- psi MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
High resolution sequence-directed nucleosome mapping is applied to 36,000 sequences containing splice junctions, from five different species. As it has been also shown in previous studies, the junctions are found to be preferentially located within nucleosomes. Moreover, the orientation of guanine residues at the GT- and AG-ends of introns within the nucleosomes is such that the guanines are positioned nearest to the surface of histone octamers, 3 and 4 bases upstream from the local DNA pseudo-dyads passing through minor grooves oriented outwards. Since the guanine residues are the most vulnerable to spontaneous damage within the cell (primarily, depurination and oxidation) such positioning of the splice junctions minimizes the damage that is caused by free radicals and highly reactive metabolites.
Citace poskytuje Crossref.org
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- $a High resolution sequence-directed nucleosome mapping is applied to 36,000 sequences containing splice junctions, from five different species. As it has been also shown in previous studies, the junctions are found to be preferentially located within nucleosomes. Moreover, the orientation of guanine residues at the GT- and AG-ends of introns within the nucleosomes is such that the guanines are positioned nearest to the surface of histone octamers, 3 and 4 bases upstream from the local DNA pseudo-dyads passing through minor grooves oriented outwards. Since the guanine residues are the most vulnerable to spontaneous damage within the cell (primarily, depurination and oxidation) such positioning of the splice junctions minimizes the damage that is caused by free radicals and highly reactive metabolites.
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