Systematic search for compact structures of telomeric nucleosomes

N Bešker, C Anselmi, R Paparcone, A Scipioni… - FEBS …, 2003 - Wiley Online Library
N Bešker, C Anselmi, R Paparcone, A Scipioni, M Savino, P De Santis
FEBS letters, 2003Wiley Online Library
Telomeres are structures functionally and structurally distinct from bulk chromatin. They are
constituted of highly conserved 5–7 bp tandemly repeated units, organized into
nucleosomes with short linkers, whereas the knowledge of the linker histone role in
telomeric chromatin is still fragmentary. Experimental evidence suggests the structural
organization of telomeric nucleosomes is different from that of the bulk chromatin. This work
presents a systematic search of the telomeric nucleosome arrangements. A low‐resolution …
Telomeres are structures functionally and structurally distinct from bulk chromatin. They are constituted of highly conserved 5–7 bp tandemly repeated units, organized into nucleosomes with short linkers, whereas the knowledge of the linker histone role in telomeric chromatin is still fragmentary. Experimental evidence suggests the structural organization of telomeric nucleosomes is different from that of the bulk chromatin. This work presents a systematic search of the telomeric nucleosome arrangements. A low‐resolution molecular model was used to evaluate the relative nucleosome packing energy. Structures with favorable energy were found, reducing the possible telomeric chromatin conformations to two different three‐dimensional folds.
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