Project information
Telomeres and telomerase: transition from molecular to structural biology approach
- Project Identification
- IAA500040801
- Project Period
- 1/2008 - 12/2012
- Investor / Pogramme / Project type
-
Academy of Sciences of the Czech Republic
- Grants of distinctly investigative character focused on the sphere of research pursued at present particularly in the ASCR
- MU Faculty or unit
- Central European Institute of Technology
- Keywords
- telomere; telomerase; Solanaceae; Arabidopsis; Asparagales
- Cooperating Organization
-
Institute of Biophysics
- Responsible person Mgr. Eva Sýkorová, CSc.
A particular feature of chromosome ends is their mode of maintenance by the specific nucleoprotein complex of telomerase. Telomerase also participates in healing of chromosome breaks by adding telomeric sequences de novo. Telomerase in plant cells, in contrast to human cells, shows reversible down- and up-regulation depending on cell proliferation status. Therefore, plant telomerase is suitable target for research of structure-directed processes in regulation of telomerase activity. This project will deal with the fundamental questions of structure, function and regulation of telomerase in plant cells using model systems of Arabidopsis, Solanaceae and Asparagales. We will develop a system to identify interaction partners of Arabidopsis telomerase. This study will be accompanied by structural study of plant TERT subunit in detail. Further, we will test our hypothesis about possible scenario of telomere-telomerase evolution in plants using model plants of Solanaceae.
Publications
Total number of publications: 10
2012
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Developmental silencing of the AtTERT gene is associated with increased H3K27me3 loading and maintenance of its euchromatic environment
Journal of Experimental Botany, year: 2012, volume: 63, edition: 11, DOI
-
HMGB1 gene knockout in mouse embryonic fibroblasts results in reduced telomerase activity and telomere dysfunction
Chromosoma, year: 2012, volume: 121, edition: 4, DOI
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Screening a cDNA Library for Protein-Protein Interactions Directly in Planta
Plant Cell, year: 2012, volume: 24, edition: 5, DOI
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Three TERT genes in Nicotiana tabacum
Chromosome Research, year: 2012, volume: 20, edition: 4, DOI
2011
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C-terminal extension of telomerases: structural and functional analysis
Year: 2011, type: Appeared in Conference without Proceedings
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Methylation of plant telomeric DNA: what do the results say?
Plant Molecular Biology, year: 2011, volume: 77, edition: 6, DOI
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Molecular analysis of T-DNA insertion mutants identified putative regulatory elements in the AtTERT gene
Journal of Experimental Botany, year: 2011, volume: 62, edition: 15, DOI
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Non-telomeric activities of telomerase
Molecular bioSystems., year: 2011, volume: 7, edition: 4, DOI
2008
-
Analysis of interaction domains of plant telomere-binding proteins AtTRB1 and AtPOT1b
Year: 2008, type: Conference abstract
-
Telomere repeat binding protein variants show distinct kinetics and energetic nature of DNA-protein interaction
Year: 2008, type: Conference abstract