Detailed Information on Publication Record
2020
DIS3L2 and LSm proteins are involved in the surveillance of Sm ring-deficient snRNAs
ROITHOVA, A., Zuzana FEKETOVÁ, Štěpánka VAŇÁČOVÁ and D. STANEKBasic 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 |
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GA20-19617S, research and development project |
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LM2015062, research and development project |
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LQ1601, research and development project |
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