J 2020

DIS3L2 and LSm proteins are involved in the surveillance of Sm ring-deficient snRNAs

ROITHOVA, A., Zuzana FEKETOVÁ, Štěpánka VAŇÁČOVÁ and D. STANEK

Basic information

Original name

DIS3L2 and LSm proteins are involved in the surveillance of Sm ring-deficient snRNAs

Authors

ROITHOVA, A., Zuzana FEKETOVÁ (703 Slovakia, belonging to the institution), Štěpánka VAŇÁČOVÁ (203 Czech Republic, guarantor, belonging to the institution) and D. STANEK

Edition

Nucleic acids research, Oxford, Oxford University Press, 2020, 0305-1048

Other information

Language

English

Type of outcome

Článek v odborném periodiku

Field of Study

10608 Biochemistry and molecular biology

Country of publisher

United Kingdom of Great Britain and Northern Ireland

Confidentiality degree

není předmětem státního či obchodního tajemství

References:

Impact factor

Impact factor: 16.971

RIV identification code

RIV/00216224:14740/20:00114751

Organization unit

Central European Institute of Technology

UT WoS

000574284500034

Keywords in English

MESSENGER-RNA; DEGRADATION PATHWAY; NONCODING RNAS; TRANSLATION FACTORS; STRUCTURAL BASIS; TRUNCATED FORMS; QUALITY-CONTROL; CAJAL BODIES; CORE DOMAIN; COMPLEX

Tags

Tags

International impact, Reviewed
Změněno: 26/2/2021 12:30, Mgr. Pavla Foltynová, Ph.D.

Abstract

V originále

Spliceosomal small nuclear ribonucleoprotein particles (snRNPs) undergo a complex maturation pathway containing multiple steps in the nucleus and in the cytoplasm. snRNP biogenesis is strictly proof-read and several quality control checkpoints are placed along the pathway. Here, we analyzed the fate of small nuclear RNAs (snRNAs) that are unable to acquire a ring of Sm proteins. We showed that snRNAs lacking the Sm ring are unstable and accumulate in P-bodies in an LSm1-dependent manner. We further provide evidence that defective snRNAs without the Sm binding site are uridylated at the 3' end and associate with DIS3L2 3'-> 5' exoribonuclease and LSm proteins. Finally, inhibition of 5'-> 3' exoribonuclease XRN1 increases association of Delta Sm snRNAs with DIS3L2, which indicates competition and compensation between these two degradation enzymes. Together, we provide evidence that defective snRNAs without the Sm ring are uridylated and degraded by alternative pathways involving either DIS3L2 or LSm proteins and XRN1.

Links

GA16-21341S, research and development project
Name: Studium úlohy uridylace RNA v lidských buňkách
Investor: Czech Science Foundation
GA20-19617S, research and development project
Name: Molekulární mechanismy nekanonických 3' terminálních modifikací RNA a jejich úloha v metabolismu kódujících a nekódujících RNA
Investor: Czech Science Foundation
LM2015062, research and development project
Name: Národní infrastruktura pro biologické a medicínské zobrazování
Investor: Ministry of Education, Youth and Sports of the CR
LQ1601, research and development project
Name: CEITEC 2020 (Acronym: CEITEC2020)
Investor: Ministry of Education, Youth and Sports of the CR