PEŠKA, Vratislav, Petr FAJKUS, Michal BUBENÍK, Václav BRÁZDA, Natália BOHÁLOVÁ, Vojtěch DVOŘÁČEK, Jiří FAJKUS and Sonia GARCIA. Extraordinary diversity of telomeres, telomerase RNAs and their template regions in Saccharomycetaceae. Scientific Reports. Nature Research, 2021, vol. 11, No 1, p. "12784", 11 pp. ISSN 2045-2322. Available from: https://dx.doi.org/10.1038/s41598-021-92126-x.
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Basic information
Original name Extraordinary diversity of telomeres, telomerase RNAs and their template regions in Saccharomycetaceae
Authors PEŠKA, Vratislav (203 Czech Republic, guarantor), Petr FAJKUS (203 Czech Republic, belonging to the institution), Michal BUBENÍK (203 Czech Republic, belonging to the institution), Václav BRÁZDA (203 Czech Republic), Natália BOHÁLOVÁ (703 Slovakia, belonging to the institution), Vojtěch DVOŘÁČEK (203 Czech Republic), Jiří FAJKUS (203 Czech Republic, belonging to the institution) and Sonia GARCIA (724 Spain).
Edition Scientific Reports, Nature Research, 2021, 2045-2322.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10603 Genetics and heredity
Country of publisher Germany
Confidentiality degree is not subject to a state or trade secret
WWW URL
Impact factor Impact factor: 4.996
RIV identification code RIV/00216224:14740/21:00119109
Organization unit Central European Institute of Technology
Doi http://dx.doi.org/10.1038/s41598-021-92126-x
UT WoS 000664915500010
Keywords in English DNA END-REPLICATION; SECONDARY STRUCTURE; G-QUADRUPLEXES SEQUENCES; REPEATS IDENTIFICATION; EVOLUTION; GENOME
Tags rivok
Tags International impact, Reviewed
Changed by Changed by: Mgr. Pavla Foltynová, Ph.D., učo 106624. Changed: 9/6/2022 11:22.
Abstract
Telomerase RNA (TR) carries the template for synthesis of telomere DNA and provides a scaffold for telomerase assembly. Fungal TRs are long and have been compared to higher eukaryotes, where they show considerable diversity within phylogenetically close groups. TRs of several Saccharomycetaceae were recently identified, however, many of these remained uncharacterised in the template region. Here we show that this is mainly due to high variability in telomere sequence. We predicted the telomere sequences using Tandem Repeats Finder and then we identified corresponding putative template regions in TR candidates. Remarkably long telomere units and the corresponding putative TRs were found in Tetrapisispora species. Notably, variable lengths of the annealing sequence of the template region (1-10 nt) were found. Consequently, species with the same telomere sequence may not harbour identical TR templates. Thus, TR sequence alone can be used to predict a template region and telomere sequence, but not to determine these exactly. A conserved feature of telomere sequences, tracts of adjacent Gs, led us to test the propensity of individual telomere sequences to form G4. The results show highly diverse values of G4-propensity, indicating the lack of ubiquitous conservation of this feature across Saccharomycetaceae.
Links
GX20-01331X, research and development projectName: Biogeneze a evoluce telomerázy u rostlin
Investor: Czech Science Foundation
LM2018140, research and development projectName: e-Infrastruktura CZ (Acronym: e-INFRA CZ)
Investor: Ministry of Education, Youth and Sports of the CR
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