Detailed Information on Publication Record
2022
Structural and functional basis of mammalian microRNA biogenesis by Dicer
ZAPLETAL, David, Eliska TABORSKA, Josef PASULKA, Radek MALIK, Karel KUBÍČEK et. al.Basic information
Original name
Structural and functional basis of mammalian microRNA biogenesis by Dicer
Authors
ZAPLETAL, David (203 Czech Republic, belonging to the institution), Eliska TABORSKA, Josef PASULKA, Radek MALIK, Karel KUBÍČEK (203 Czech Republic, belonging to the institution), Martina ZÁNOVÁ (703 Slovakia, belonging to the institution), Christian MUCH, Marek ŠEBESTA (703 Slovakia, belonging to the institution), Valeria BUCCHERI, Filip HORVAT, Irena JENICKOVA, Michaela PROCHAZKOVA, Jan PROCHAZKA, Matyáš PINKAS (203 Czech Republic, belonging to the institution), Jiří NOVÁČEK (203 Czech Republic, belonging to the institution), Diego F JOSEPH, Radislav SEDLACEK, Carrie BERNECKY, Donal CARROLL, Richard ŠTEFL (203 Czech Republic, guarantor, belonging to the institution) and Petr SVOBODA
Edition
Molecular Cell, CAMBRIDGE, CELL PRESS, 2022, 1097-2765
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: 16.000
RIV identification code
RIV/00216224:14740/22:00128561
Organization unit
Central European Institute of Technology
UT WoS
000898565300011
Keywords in English
CRYO-EM STRUCTUREGUIDE STRAND SELECTIONRNA-BINDINGSTRUCTURE VALIDATIONTRBP COMPLEXMOUSEEXPRESSIONMOLPROBITYSPECIFICITYRECOGNITION
Tags
Změněno: 26/2/2023 20:32, Mgr. Pavla Foltynová, Ph.D.
Abstract
V originále
MicroRNA (miRNA) and RNA interference (RNAi) pathways rely on small RNAs produced by Dicer endonucle-ases. Mammalian Dicer primarily supports the essential gene-regulating miRNA pathway, but how it is spe-cifically adapted to miRNA biogenesis is unknown. We show that the adaptation entails a unique structural role of Dicer???s DExD/H helicase domain. Although mice tolerate loss of its putative ATPase function, the com-plete absence of the domain is lethal because it assures high-fidelity miRNA biogenesis. Structures of murine Dicerd???miRNA precursor complexes revealed that the DExD/H domain has a helicase-unrelated structural function. It locks Dicer in a closed state, which facilitates miRNA precursor selection. Transition to a cleav-age-competent open state is stimulated by Dicer-binding protein TARBP2. Absence of the DExD/H domain or its mutations unlocks the closed state, reduces substrate selectivity, and activates RNAi. Thus, the DExD/H domain structurally contributes to mammalian miRNA biogenesis and underlies mechanistical partitioning of miRNA and RNAi pathways.
Links
EF19_073/0016943, research and development project |
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GA22-19896S, research and development project |
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LM2018127, research and development project |
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LM2018131, research and development project |
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LQ1601, research and development project |
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649030, interní kód MU |
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