RRC ID 38383
Author Izumi Y, Yamamoto S, Fujii K, Yokoya A.
Title Secondary Structure Alterations of Histones H2A and H2B in X-Irradiated Human Cancer Cells: Altered Histones Persist in Cells for at Least 24 Hours.
Journal Radiat Res
Abstract We measured and compared the circular dichroism (CD) spectra and secondary structures of histone proteins H2A, H2B and their variants extracted from X-irradiated and unirradiated human HeLa cells. Compared to unirradiated cells, a relative increase in α-helix structure and decrease in other secondary structures was observed in X-irradiated cells. These structural alterations persisted for at least 24 h, which is substantially longer than the 2 h generally known to be required for DNA double-strand break repair.
Volume 184(5)
Pages 554-8
Published 2015-11-1
DOI 10.1667/RR14071.1
PMID 26488755
MeSH DNA Repair / radiation effects HeLa Cells Histones / chemistry* Humans Protein Structure, Secondary / radiation effects Time Factors X-Rays / adverse effects
IF 2.657
Times Cited 6
WOS Category BIOLOGY RADIOLOGY, NUCLEAR MEDICINE & MEDICAL IMAGING BIOPHYSICS
Resource
Human and Animal Cells HeLa/Fucci(RCB2812)