2XV4

Structure of Human RPC62 (partial)


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.228 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure-Function Analysis of Hrpc62 Provides Insights Into RNA Polymerase III Transcription

Lefevre, S.Dumay-Odelot, H.El Ayoubi, L.Budd, A.Legrand, P.Pinaud, N.Teichmann, M.Fribourg, S.

(2011) Nat.Struct.Mol.Biol. 18: 352

  • DOI: 10.1038/nsmb.1996
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The 17-subunit human RNA polymerase III (hPol III) transcribes small, untranslated RNA genes that are involved in the regulation of transcription, splicing and translation. hPol III subunits hRPC62, hRPC39 and hRPC32 form a stable ternary subcomplex ...

    The 17-subunit human RNA polymerase III (hPol III) transcribes small, untranslated RNA genes that are involved in the regulation of transcription, splicing and translation. hPol III subunits hRPC62, hRPC39 and hRPC32 form a stable ternary subcomplex required for promoter-specific transcription initiation by hPol III. Here, we report the crystal structure of hRPC62. This subunit folds as a four-tandem extended winged helix (eWH) protein that is structurally related to the transcription factor TFIIEα N terminus. Through biochemical analyses, we mapped the protein-protein interactions of hRPC62, hRPC32 and hRPC39. In addition, we demonstrated that hRPC62 and hRPC39 bind single-stranded and duplex DNA, respectively, in a sequence-independent manner. Overall, we shed light on structural similarities between the hPol III-specific subunit hRPC62 and TFIIEα and propose specific functions for hRPC39 and hRPC62 in transcription initiation by hPol III.


    Organizational Affiliation

    Institut Européen de Chimie et Biologie, Pessac, France.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC3
S
534Homo sapiensMutation(s): 0 
Gene Names: POLR3C
Find proteins for Q9BUI4 (Homo sapiens)
Go to Gene View: POLR3C
Go to UniProtKB:  Q9BUI4
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
PO4
Query on PO4

Download SDF File 
Download CCD File 
S
PHOSPHATE ION
O4 P
NBIIXXVUZAFLBC-UHFFFAOYSA-K
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.95 Å
  • R-Value Free: 0.256 
  • R-Value Work: 0.228 
  • Space Group: C 1 2 1
Unit Cell:
Length (Å)Angle (°)
a = 162.540α = 90.00
b = 69.920β = 112.84
c = 75.970γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
SCALEPACKdata scaling
BUSTERrefinement
SHELXCDphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-03-02
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance