Chromatin structure of human chromosomal fragile sites.

Abstract:

:Cytological appearance of fragile sites as non-staining gaps in metaphase chromosomes suggests an abnormality in chromatin structure. Studies of fragile sites at three levels of chromosome organization: (1) examining the ability of DNA derived from fragile sites to form nucleosomes-the basic structural element of chromosomes, (2) probing the arrangement of nucleosome arrays over fragile sites in fragile site-expressing cell lines, and (3) visualizing fragile sites in higher-order chromatin organization, reveal an unusual chromatin structure associated with fragile sites. This fragile site-associated chromatin structure might play an active role in DNA metabolic processes such as replication, transcription, repair and recombination, which are closely linked to the instability of fragile sites.

journal_name

Cancer Lett

journal_title

Cancer letters

authors

Wang YH

doi

10.1016/j.canlet.2005.07.040

keywords:

subject

Has Abstract

pub_date

2006-01-28 00:00:00

pages

70-8

issue

1

eissn

0304-3835

issn

1872-7980

pii

S0304-3835(05)00828-1

journal_volume

232

pub_type

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