2021
Evolution of plant telomerase RNAs: farther to the past, deeper to the roots
FAJKUS, Petr, Agata Magdalena KILAR, A.D.L. NELSON, M. HOLA, V. PESKA et. al.Základní údaje
Originální název
Evolution of plant telomerase RNAs: farther to the past, deeper to the roots
Autoři
FAJKUS, Petr (203 Česká republika, domácí), Agata Magdalena KILAR (616 Polsko, domácí), A.D.L. NELSON, M. HOLA, V. PESKA, Ivana GOFFOVÁ (703 Slovensko, domácí), Miloslava FOJTOVÁ (203 Česká republika, domácí), Dagmar ZACHOVÁ (203 Česká republika, domácí), Jana FULNEČKOVÁ (203 Česká republika) a Jiří FAJKUS (203 Česká republika, garant, domácí)
Vydání
Nucleic acids research, Oxford, Oxford University Press, 2021, 0305-1048
Další údaje
Jazyk
angličtina
Typ výsledku
Článek v odborném periodiku
Obor
10608 Biochemistry and molecular biology
Stát vydavatele
Velká Británie a Severní Irsko
Utajení
není předmětem státního či obchodního tajemství
Odkazy
Impakt faktor
Impact factor: 19.160
Kód RIV
RIV/00216224:14740/21:00119679
Organizační jednotka
Středoevropský technologický institut
UT WoS
000685211300038
Klíčová slova anglicky
TEMPLATE-BOUNDARY DEFINITION; SECONDARY STRUCTURE; POLYMERASE-III; SNRNA GENES; SEQUENCE; IDENTIFICATION; PROMOTER; PSEUDOKNOT; ELEMENT; ARABIDOPSIS
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 15. 10. 2024 14:07, Ing. Martina Blahová
Anotace
V originále
The enormous sequence heterogeneity of telomerase RNA (TR) subunits has thus far complicated their characterization in a wider phylogenetic range. Our recent finding that land plant TRs are, similarly to known ciliate TRs, transcribed by RNA polymerase III and under the control of the type-3 promoter, allowed us to design a novel strategy to characterize TRs in early diverging Viridiplantae taxa, as well as in ciliates and other Diaphoretickes lineages. Starting with the characterization of the upstream sequence element of the type 3 promoter that is conserved in a number of small nuclear RNAs, and the expected minimum TR template region as search features, we identified candidate TRs in selected Diaphoretickes genomes. Homologous TRs were then used to build covariance models to identify TRs in more distant species. Transcripts of the identified TRs were confirmed by transcriptomic data, RT-PCR and Northern hybridization. A templating role for one of our candidates was validated in Physcomitrium patens. Analysis of secondary structure demonstrated a deep conservation of motifs (pseudoknot and template boundary element) observed in all published TRs. These results elucidate the evolution of the earliest eukaryotic TRs. linking the common origin of TRs across Diaphoretickes, and underlying evolutionary transitions in telomere repeats. [GRAPHICS] .
Návaznosti
GX20-01331X, projekt VaV |
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LM2018140, projekt VaV |
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90132, velká výzkumná infrastruktura |
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