J 2024

Characterisation of the Arabidopsis thaliana telomerase TERT-TR complex

ŠTEFANOVIE, Barbora, Leon Paul JENNER, Lucie BOZDĚCHOVÁ, Petr FAJKUS, Eva SÝKOROVÁ et. al.

Basic information

Original name

Characterisation of the Arabidopsis thaliana telomerase TERT-TR complex

Authors

ŠTEFANOVIE, Barbora (703 Slovakia, belonging to the institution), Leon Paul JENNER (826 United Kingdom of Great Britain and Northern Ireland), Lucie BOZDĚCHOVÁ (203 Czech Republic, belonging to the institution), Petr FAJKUS (203 Czech Republic, belonging to the institution), Eva SÝKOROVÁ (203 Czech Republic), Jiří FAJKUS (203 Czech Republic, belonging to the institution) and Jan PALEČEK (203 Czech Republic, guarantor, belonging to the institution)

Edition

Plant Molecular Biology, Dordrecht (Netherlands), Springer, 2024, 0167-4412

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10608 Biochemistry and molecular biology

Country of publisher

Netherlands

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 5.100 in 2022

Organization unit

Faculty of Science

UT WoS

001222709400002

Keywords (in Czech)

A.thaliana telomerasa; AtTERT; AtTR; Protein-RNA interakce; kvasinkový troj-hybridní systém

Keywords in English

A.thaliana telomerase; AtTERT; AtTR; Protein-RNA interactions; Yeast three-hybrid

Tags

International impact, Reviewed
Změněno: 7/8/2024 13:49, prof. RNDr. Jiří Fajkus, CSc.

Abstract

V originále

Most eukaryotic organisms employ a telomerase complex for the maintenance of chromosome ends. The core of this complex is composed of telomerase reverse transcriptase (TERT) and telomerase RNA (TR) subunits. The TERT reverse transcriptase (RT) domain synthesises telomeric DNA using the TR template sequence. The other TERT domains contribute to this process in different ways. In particular, the TERT RNA-binding domain (TRBD) interacts with specific TR motif(s). Using a yeast 3-hybrid system, we show the critical role of Arabidopsis thaliana (At) TRBD and embryophyta-conserved KRxR motif in the unstructured linker preceding the TRBD domain for binding to the recently identified AtTR subunit. We also show the essential role of the predicted P4 stem and pseudoknot AtTR structures and provide evidence for the binding of AtTRBD to pseudoknot and KRxR motif stabilising interaction with the P4 stem structure. Our results thus provide the first insight into the core part of the plant telomerase complex.

Links

EH22_008/0004581, research and development project
Name: Nové poznatky pro plodiny nové generace
GX20-01331X, research and development project
Name: Biogeneze a evoluce telomerázy u rostlin
Investor: Czech Science Foundation
MUNI/R/1142/2021, interní kód MU
Name: Visualization of the 3D structure of chromatin
Investor: Masaryk University, CAREER RESTART

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