J 2022

Cooperation between intrinsically disordered and ordered regions of Spt6 regulates nucleosome and Pol II CTD binding, and nucleosome assembly

KASILIAUSKAITE, Aiste, Karel KUBÍČEK, Tomáš KLUMPLER, Martina ZÁNOVÁ, David ZAPLETAL et. al.

Basic information

Original name

Cooperation between intrinsically disordered and ordered regions of Spt6 regulates nucleosome and Pol II CTD binding, and nucleosome assembly

Authors

KASILIAUSKAITE, Aiste (440 Lithuania, belonging to the institution), Karel KUBÍČEK (203 Czech Republic, belonging to the institution), Tomáš KLUMPLER (203 Czech Republic, belonging to the institution), Martina ZÁNOVÁ (703 Slovakia, belonging to the institution), David ZAPLETAL (203 Czech Republic, belonging to the institution), Eliska KOUTNA, Jiří NOVÁČEK (203 Czech Republic, belonging to the institution) and Richard ŠTEFL (203 Czech Republic, guarantor, belonging to the institution)

Edition

Nucleic acids research, Oxford, Oxford University Press, 2022, 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: 14.900

RIV identification code

RIV/00216224:14740/22:00127507

Organization unit

Central European Institute of Technology

UT WoS

000805243900001

Keywords in English

RNA polymerase II; transcription elongation factor; transcription elongation factor Spt6; unclassified drug

Tags

International impact, Reviewed
Změněno: 27/10/2024 14:23, Ing. Martina Blahová

Abstract

V originále

Transcription elongation factor Spt6 associates with RNA polymerase II (Pol II) and acts as a histone chaperone, which promotes the reassembly of nucleosomes following the passage of Pol II. The precise mechanism of nucleosome reassembly mediated by Spt6 remains unclear. In this study, we used a hybrid approach combining cryo-electron microscopy and small-angle X-ray scattering to visualize the architecture of Spt6 from Saccharomyces cerevisiae. The reconstructed overall architecture of Spt6 reveals not only the core of Spt6, but also its flexible N- and C-termini, which are critical for Spt6’s function. We found that the acidic N-terminal region of Spt6 prevents the binding of Spt6 not only to the Pol II CTD and Pol II CTD-linker, but also to pre-formed intact nucleosomes and nucleosomal DNA. The N-terminal region of Spt6 self-associates with the tSH2 domain and the core of Spt6 and thus controls binding to Pol II and nucleosomes. Furthermore, we found that Spt6 promotes the assembly of nucleosomes in vitro. These data indicate that the cooperation between the intrinsically disordered and structured regions of Spt6 regulates nucleosome and Pol II CTD binding, and also nucleosome assembly.

Links

GA22-19896S, research and development project
Name: Strukturní podstata pro opětovné sestavení nukleosomu při přepisu genu zprostředkovaná proteinem Spt6
Investor: Czech Science Foundation, Structural basis for co-transcriptional nucleosome reassembly mediated by Spt6
LQ1601, research and development project
Name: CEITEC 2020 (Acronym: CEITEC2020)
Investor: Ministry of Education, Youth and Sports of the CR
649030, interní kód MU
Name: DECOR - Dynamic assembly and exchange of RNA polymerase II CTD factors (Acronym: DECOR)
Investor: European Union, DECOR, ERC (Excellent Science)
90127, large research infrastructures
Name: CIISB II