J 2016

Localized Movement and Levels of 53BP1 Protein Are Changed by gamma-irradiation in PML Deficient Cells

LEGARTOVÁ, Soňa, Petra ŘEZNÍČKOVÁ-PODLOUČKOVÁ, Barbora MALYŠKOVÁ, Thomas KÜNTZIGER, Philippe COLLAS et. al.

Basic information

Original name

Localized Movement and Levels of 53BP1 Protein Are Changed by gamma-irradiation in PML Deficient Cells

Authors

LEGARTOVÁ, Soňa (703 Slovakia), Petra ŘEZNÍČKOVÁ-PODLOUČKOVÁ (203 Czech Republic), Barbora MALYŠKOVÁ (203 Czech Republic), Thomas KÜNTZIGER (578 Norway), Philippe COLLAS (578 Norway), Dušan CMARKO (203 Czech Republic), Ivan RAŠKA (203 Czech Republic), Dmitry SOROKIN (643 Russian Federation, guarantor, belonging to the institution), Stanislav KOZUBEK (203 Czech Republic) and Eva BÁRTOVÁ (203 Czech Republic)

Edition

Journal of Cellular Biochemistry [IF=2.778 (1990)], Wiley-Liss, 2016, 0730-2312

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

Genetics and molecular biology

Country of publisher

United States of America

Confidentiality degree

není předmětem státního či obchodního tajemství

Impact factor

Impact factor: 3.085

RIV identification code

RIV/00216224:14330/16:00087865

Organization unit

Faculty of Informatics

UT WoS

000383626800015

Keywords in English

DNA REPAIR; 53BP1 PROTEIN; PML BODIES; HISTONE MODIFICATIONS; MICROSCOPY; PHOTOBLEACHING

Tags

Změněno: 27/4/2017 05:49, RNDr. Pavel Šmerk, Ph.D.

Abstract

V originále

We studied epigenetics, distribution pattern, kinetics, and diffusion of proteins recruited to spontaneous and g-radiation-induced DNA lesions. We showed that PML deficiency leads to an increased number of DNA lesions, which was accompanied by changes in histone signature. In PML wt cells, we observed two mobile fractions of 53BP1 protein with distinct diffusion in spontaneous lesions. These protein fractions were not detected in PML-deficient cells, characterized by slow-diffusion of 53BP1. Single particle tracking analysis revealed limited local motion of 53BP1 foci in PML double null cells and local motion 53BP1 foci was even more reduced after g-irradiation. However, radiation did not change co-localization between 53BP1 nuclear bodies and interchromatin granule-associated zones (IGAZs), nuclear speckles, or chromocenters. This newly observed interaction pattern imply that 53BP1 protein could be a part of not only DNA repair, but also process mediated via components accumulated in IGAZs, nuclear speckles, or paraspeckles. Together, PML deficiency affected local motion of 53BP1 nuclear bodies and changed composition and a number of irradiation-induced foci.

Links

GBP302/12/G157, research and development project
Name: Dynamika a organizace chromosomů během buněčného cyklu a při diferenciaci v normě a patologii
Investor: Czech Science Foundation