STIXOVÁ, Lenka, Eva BÁRTOVÁ, Pavel MATULA, Ondřej DANĚK, Soňa LEGARTOVÁ and Stanislav KOZUBEK. Heterogeneity in the kinetics of nuclear proteins and trajectories of substructures associated with heterochromatin. Epigenetics & Chromatin. 2011, vol. 4, No 5, p. 1-17. ISSN 1756-8935. Available from: https://dx.doi.org/10.1186/1756-8935-4-5.
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Basic information
Original name Heterogeneity in the kinetics of nuclear proteins and trajectories of substructures associated with heterochromatin
Authors STIXOVÁ, Lenka (203 Czech Republic), Eva BÁRTOVÁ (203 Czech Republic), Pavel MATULA (203 Czech Republic, guarantor, belonging to the institution), Ondřej DANĚK (203 Czech Republic, belonging to the institution), Soňa LEGARTOVÁ (703 Slovakia) and Stanislav KOZUBEK (203 Czech Republic).
Edition Epigenetics & Chromatin, 2011, 1756-8935.
Other information
Original language English
Type of outcome Article in a journal
Field of Study Genetics and molecular biology
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 4.462
RIV identification code RIV/00216224:14330/11:00052815
Organization unit Faculty of Informatics
Doi http://dx.doi.org/10.1186/1756-8935-4-5
UT WoS 000288995300001
Keywords in English protein dynamics HP1b BMI1 TRF1 trajectory heterochromatin
Tags International impact, Reviewed
Changed by Changed by: doc. RNDr. Pavel Matula, Ph.D., učo 2927. Changed: 13/4/2012 00:09.
Abstract
We show that protein dynamics are influenced by many factors and events, including nuclear pattern and transcription activity. A slower recovery after photobleaching was found when proteins, such as HP1b, BMI1, TRF1, and others accumulated at specific foci. In identical cells, proteins that were evenly dispersed throughout the nucleoplasm recovered more rapidly. Distinct trajectories for HP1b, BMI1, and TRF1 were observed after hyperacetylation or suppression of transcription. The relationship between protein trajectory and transcription level was confirmed for telomeric protein TRF1, but not for HP1b or BMI1 proteins. Moreover, heterogeneity of foci movement was especially observed when we made distinctions between centrally and peripherally positioned foci. Based on our results, we propose that protein kinetics are likely influenced by several factors, including chromatin condensation, differentiation, local protein density, protein binding efficiency, and nuclear pattern. These factors and events likely cooperate to dictate the mobility of particular proteins.
Links
LC535, research and development projectName: Dynamika a organizace chromosomů během buněčného cyklu v normě a patologii
Investor: Ministry of Education, Youth and Sports of the CR, Dynamika a organizace chromosomů během buněčného cyklu v normě a patologii
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