Publication details

Mechanismy přestavby chromatinu

Title in English Mechanisms of chromatin remodeling
Authors

ŠMARDOVÁ Jana ŠMARDA Jan

Year of publication 2001
Type Article in Periodical
Magazine / Source Biologické listy
MU Faculty or unit

Faculty of Science

Citation
Field Genetics and molecular biology
Description Chromatin appears to be ramarkably resistant to physical perturbation and inhospitable to molecular machines that use it as a substrate for transcription, replication, recombination, DNA repair and chromosome segregation. All of these processes are associated with chromatin remodeling increasing DNA accessibility to DNA-binding proteins. Several mechanisms have been identified that modelate chromatine structure: ATP-dependent chromatin remodeling complexes which work as machines to physically dissociate the DNA from histones and complex enzyme machinery chemically modifying histones. Histone post-translation modofications include acetylation, phosphorylation, methylation and ubiquitination, which usually take place on the tail domains of histones. Hisone modifications may alter chromatine structure by affecting histone-DNA interactions or may represent specific histone language - a "histone code" - encoded on the histone tail domains and read by other proteins or protein complexes. Chromatin remodeling is very complex process and its mechanisms are in focus of this review.
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