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.jpg): Failed to open stream: No such file or directory in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 117 Biochem+Biophys+Rep
2016 ; 5
(ä): 492-501
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On the role of inter-nucleosomal interactions and intrinsic nucleosome dynamics
in chromatin function
#MMPMID28955857
Krajewski WA
Biochem Biophys Rep
2016[Mar]; 5
(ä): 492-501
PMID28955857
show ga
Evidence is emerging that many diseases result from defects in gene functions,
which, in turn, depend on the local chromatin environment of a gene. However, it
still remains not fully clear how chromatin activity code is 'translated' to the
particular 'activating' or 'repressing' chromatin structural transition.
Commonly, chromatin remodeling in vitro was studied using mononucleosomes as a
model. However, recent data suggest that structural reorganization of a single
mononucleosome is not equal to remodeling of a nucleosome particle under
multinucleosomal content - such as, interaction of nucleosomes via flexible
histone termini could significantly alter the mode (and the resulting products)
of nucleosome structural transitions. It is becoming evident that a nucleosome
array does not constitute just a 'polymer' of individual 'canonical' nucleosomes
due to multiple inter-nucleosomal interactions which affect nucleosome dynamics
and structure. It could be hypothesized, that inter-nucleosomal interactions
could act in cooperation with nucleosome inherent dynamics to orchestrate
DNA-based processes and promote formation and stabilization of highly-dynamic,
accessible structure of a nucleosome array. In the proposed paper we would like
to discuss the nucleosome dynamics within the chromatin fiber mainly as it
pertains to the roles of the structural changes mediated by inter-nucleosomal
interactions.