Structural basis of the human negative elongation factor NELF-B/C/E ternary complex.
Crystal structure
NELF
Ternary complex
Transcription elongation
Journal
Biochemical and biophysical research communications
ISSN: 1090-2104
Titre abrégé: Biochem Biophys Res Commun
Pays: United States
ID NLM: 0372516
Informations de publication
Date de publication:
15 10 2023
15 10 2023
Historique:
received:
03
08
2023
accepted:
09
08
2023
medline:
4
9
2023
pubmed:
18
8
2023
entrez:
17
8
2023
Statut:
ppublish
Résumé
Negative elongation factor (NELF) is a four-subunit transcription elongation factor that mainly functions in maintaining the paused state of RNA polymerase II in eukaryotes. Upon binding to Pol II, NELF works synergistically with DRB sensitivity-inducing factor (DSIF) and inhibits transcription elongation of Pol II, which subsequently retains a stably paused state 20-60 base pairs downstream of the promoter. The promoter-proximal pausing of Pol II caused by NELF is a general mechanism of transcriptional regulation for most signal-responsive genes. To date, structural studies have significantly advanced our understanding of the molecular mechanisms of NELF. However, a high quality structural model clarifying the interaction details of this complex is still lacking. In this study, we solved the high resolution crystal structure of the NELF-B/C/E ternary complex. We observed detailed interactions between subunits and identified residues important for the association between NELF-B and NELF-E. Our work presents a precise model of the NELF complex, which will facilitate our understanding of its in vivo function.
Identifiants
pubmed: 37591184
pii: S0006-291X(23)00957-9
doi: 10.1016/j.bbrc.2023.08.019
pii:
doi:
Substances chimiques
negative elongation factor
0
Transcription Factors
0
RNA Polymerase II
EC 2.7.7.-
Types de publication
Journal Article
Research Support, Non-U.S. Gov't
Langues
eng
Sous-ensembles de citation
IM
Pagination
155-161Informations de copyright
Copyright © 2023 Elsevier Inc. All rights reserved.
Déclaration de conflit d'intérêts
Declaration of competing interest The authors declare no conflict of interest.