5OHO

Crystal structure of the KOWx-KOW4 domain of human DSIF


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.177 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Structure of a transcribing RNA polymerase II-DSIF complex reveals a multidentate DNA-RNA clamp.

Bernecky, C.Plitzko, J.M.Cramer, P.

(2017) Nat Struct Mol Biol 24: 809-815

  • DOI: https://doi.org/10.1038/nsmb.3465
  • Primary Citation of Related Structures:  
    5OHO, 5OHQ, 5OIK

  • PubMed Abstract: 

    During transcription, RNA polymerase II (Pol II) associates with the conserved elongation factor DSIF. DSIF renders the elongation complex stable and functions during Pol II pausing and RNA processing. We combined cryo-EM and X-ray crystallography to determine the structure of the mammalian Pol II-DSIF elongation complex at a nominal resolution of 3.4 Å. Human DSIF has a modular structure with two domains forming a DNA clamp, two domains forming an RNA clamp, and one domain buttressing the RNA clamp. The clamps maintain the transcription bubble, position upstream DNA, and retain the RNA transcript in the exit tunnel. The mobile C-terminal region of DSIF is located near exiting RNA, where it can recruit factors for RNA processing. The structure provides insight into the roles of DSIF during mRNA synthesis.


  • Organizational Affiliation

    Department of Molecular Biology, Max Planck Institute for Biophysical Chemistry, Göttingen, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Transcription elongation factor SPT5
A, B
113Homo sapiensMutation(s): 0 
Gene Names: SUPT5HSPT5SPT5H
UniProt & NIH Common Fund Data Resources
Find proteins for O00267 (Homo sapiens)
Explore O00267 
Go to UniProtKB:  O00267
PHAROS:  O00267
GTEx:  ENSG00000196235 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupO00267
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.60 Å
  • R-Value Free: 0.221 
  • R-Value Work: 0.174 
  • R-Value Observed: 0.177 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 50.286α = 90
b = 54.403β = 90
c = 73.065γ = 90
Software Package:
Software NamePurpose
XDSdata scaling
SHELXphasing
PHENIXrefinement
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research FoundationGermanySFB860, SPP1935
European Research CouncilGermanyTRANSREGULON
Volkswagen FoundationGermany--

Revision History  (Full details and data files)

  • Version 1.0: 2017-09-13
    Type: Initial release
  • Version 1.1: 2017-09-20
    Changes: Database references
  • Version 1.2: 2017-10-18
    Changes: Database references
  • Version 1.3: 2019-11-06
    Changes: Data collection, Database references