7ASV

Crystal structure of tWHD2 of Rpc5 subunit of human RNA Polymerase III

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.180 

wwPDB Validation   3D Report Full Report


This is version 1.0 of the entry. See complete history. 


Literature

Structure of human RNA polymerase III.

Ramsay, E.P., Abascal-Palacios, G., Daiss, J.L., King, H., Gouge, J., Pilsl, M., Beuron, F., Morris, E., Gunkel, P., Engel, C., Vannini, A.

(2020) Nat Commun 11: 6409-6409

  • DOI: https://doi.org/10.1038/s41467-020-20262-5
  • Primary Citation of Related Structures:  
    7AST, 7ASU, 7ASV

  • PubMed Abstract: 

    In eukaryotes, RNA Polymerase (Pol) III is specialized for the transcription of tRNAs and other short, untranslated RNAs. Pol III is a determinant of cellular growth and lifespan across eukaryotes. Upregulation of Pol III transcription is observed in cancer and causative Pol III mutations have been described in neurodevelopmental disorders and hypersensitivity to viral infection. Here, we report a cryo-EM reconstruction at 4.0 Å of human Pol III, allowing mapping and rationalization of reported genetic mutations. Mutations causing neurodevelopmental defects cluster in hotspots affecting Pol III stability and/or biogenesis, whereas mutations affecting viral sensing are located in proximity to DNA binding regions, suggesting an impairment of Pol III cytosolic viral DNA-sensing. Integrating x-ray crystallography and SAXS, we also describe the structure of the higher eukaryote specific RPC5 C-terminal extension. Surprisingly, experiments in living cells highlight a role for this module in the assembly and stability of human Pol III.

    • Organizational Affiliation: 

    Division of Structural Biology, The Institute of Cancer Research, London, SW7 3RP, UK.


Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
DNA-directed RNA polymerase III subunit RPC5A [auth B],
B [auth A]		708Homo sapiensMutation(s): 0 
Gene Names: POLR3E, KIAA1452
UniProt & NIH Common Fund Data Resources
Find proteins for Q9NVU0 (Homo sapiens)
Explore Q9NVU0 
Go to UniProtKB:  Q9NVU0
PHAROS:  Q9NVU0
GTEx:  ENSG00000058600 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9NVU0
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Modified Residues  2 Unique
IDChains TypeFormula2D DiagramParent
CME
Query on CME		A [auth B],
B [auth A]		L-PEPTIDE LINKINGC5 H11 N O3 S2CYS
MSE
Query on MSE		A [auth B],
B [auth A]		L-PEPTIDE LINKINGC5 H11 N O2 SeMET
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.55 Å
  • R-Value Free: 0.210 
  • R-Value Work: 0.180 
  • Space Group: P 1 21 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 41.11α = 90
b = 75.76β = 103.57
c = 62.4γ = 90
Software Package:
Software NamePurpose
PHENIXrefinement
xia2data reduction
xia2data scaling
PHENIXphasing

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Cancer Research UKUnited KingdomCR-UK C47547/A21536
Wellcome TrustUnited Kingdom200818/Z/16/Z
H2020 Marie Curie Actions of the European CommissionEuropean Union655238

Revision History  (Full details and data files)

  • Version 1.0: 2020-12-30
    Type: Initial release