6GME

Structure of H. sapiens SPT6 tandem SH2 domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.192 

wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Structure of activated transcription complex Pol II-DSIF-PAF-SPT6.

Vos, S.M.Farnung, L.Boehning, M.Wigge, C.Linden, A.Urlaub, H.Cramer, P.

(2018) Nature 560: 607-612

  • DOI: 10.1038/s41586-018-0440-4
  • Primary Citation of Related Structures:  
    6GME, 6GMH

  • PubMed Abstract: 
  • Gene regulation involves activation of RNA polymerase II (Pol II) that is paused and bound by the protein complexes DRB sensitivity-inducing factor (DSIF) and negative elongation factor (NELF). Here we show that formation of an activated Pol II elongation complex in vitro requires the kinase function of the positive transcription elongation factor b (P-TEFb) and the elongation factors PAF1 complex (PAF) and SPT6 ...

    Gene regulation involves activation of RNA polymerase II (Pol II) that is paused and bound by the protein complexes DRB sensitivity-inducing factor (DSIF) and negative elongation factor (NELF). Here we show that formation of an activated Pol II elongation complex in vitro requires the kinase function of the positive transcription elongation factor b (P-TEFb) and the elongation factors PAF1 complex (PAF) and SPT6. The cryo-EM structure of an activated elongation complex of Sus scrofa Pol II and Homo sapiens DSIF, PAF and SPT6 was determined at 3.1 Å resolution and compared to the structure of the paused elongation complex formed by Pol II, DSIF and NELF. PAF displaces NELF from the Pol II funnel for pause release. P-TEFb phosphorylates the Pol II linker to the C-terminal domain. SPT6 binds to the phosphorylated C-terminal-domain linker and opens the RNA clamp formed by DSIF. These results provide the molecular basis for Pol II pause release and elongation activation.


    Organizational Affiliation

    Max Planck Institute for Biophysical Chemistry, Department of Molecular Biology, Göttingen, Germany. patrick.cramer@mpibpc.mpg.de.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
SPT6 tandem SH2 domain,Transcription elongation factor SPT6A, B201Homo sapiensMutation(s): 0 
Gene Names: SUPT6HKIAA0162SPT6H
UniProt & NIH Common Fund Data Resources
Find proteins for Q7KZ85 (Homo sapiens)
Explore Q7KZ85 
Go to UniProtKB:  Q7KZ85
PHAROS:  Q7KZ85
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.80 Å
  • R-Value Free: 0.223 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.192 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 51.02α = 90
b = 81.1β = 115.08
c = 51.37γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
XDSdata reduction
XSCALEdata scaling
PHENIXphasing

Structure Validation

View Full Validation Report




Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
Volkswagen FoundationGermany--
European Molecular Biology OrganizationGermanyALTF 745-2014
European Research CouncilGermany693023

Revision History  (Full details and data files)

  • Version 1.0: 2018-08-22
    Type: Initial release
  • Version 1.1: 2018-09-05
    Changes: Data collection, Database references