4C3I

Structure of 14-subunit RNA polymerase I at 3.0 A resolution, crystal form C2-100


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.200 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Crystal Structure of the 14-Subunit RNA Polymerase I

Fernandez-Tornero, C.Moreno-Morcillo, M.Rashid, U.J.Taylor, N.M.I.Ruiz, F.M.Gruene, T.Legrand, P.Steuerwald, U.Muller, C.W.

(2013) Nature 502: 644

  • DOI: 10.1038/nature12636
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Protein biosynthesis depends on the availability of ribosomes, which in turn relies on ribosomal RNA production. In eukaryotes, this process is carried out by RNA polymerase I (Pol I), a 14-subunit enzyme, the activity of which is a major determinant ...

    Protein biosynthesis depends on the availability of ribosomes, which in turn relies on ribosomal RNA production. In eukaryotes, this process is carried out by RNA polymerase I (Pol I), a 14-subunit enzyme, the activity of which is a major determinant of cell growth. Here we present the crystal structure of Pol I from Saccharomyces cerevisiae at 3.0 Å resolution. The Pol I structure shows a compact core with a wide DNA-binding cleft and a tightly anchored stalk. An extended loop mimics the DNA backbone in the cleft and may be involved in regulating Pol I transcription. Subunit A12.2 extends from the A190 jaw to the active site and inserts a transcription elongation factor TFIIS-like zinc ribbon into the nucleotide triphosphate entry pore, providing insight into the role of A12.2 in RNA cleavage and Pol I insensitivity to α-amanitin. The A49-A34.5 heterodimer embraces subunit A135 through extended arms, thereby contacting and potentially regulating subunit A12.2.


    Organizational Affiliation

    1] Centro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Ramiro de Maeztu 9, 28040 Madrid, Spain [2].



Macromolecules

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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA190A1664Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.7.6
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA135B1203Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.7.6
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASES I AND III SUBUNIT RPAC1C335Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 1E215Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 2F155Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA43G326Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 3H146Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA12I125Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 5J70Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 11
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASES I AND III SUBUNIT RPAC2K142Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 12
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 4L70Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 13
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA49M415Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 14
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA34N233Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASE I SUBUNIT RPA14D137Saccharomyces cerevisiaeMutation(s): 0 
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  • Reference Sequence
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MPD
Query on MPD

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G
(4S)-2-METHYL-2,4-PENTANEDIOL
C6 H14 O2
SVTBMSDMJJWYQN-YFKPBYRVSA-N
 Ligand Interaction
SO4
Query on SO4

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A, K
SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
 Ligand Interaction
ZN
Query on ZN

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A, B, I, J, L
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

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B
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.00 Å
  • R-Value Free: 0.231 
  • R-Value Work: 0.199 
  • R-Value Observed: 0.200 
  • Space Group: C 1 2 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 400.53α = 90
b = 140.22β = 100.14
c = 122.89γ = 90
Software Package:
Software NamePurpose
XDSdata reduction
XSCALEdata scaling
PHASERphasing
SHARPphasing
BUSTERrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-10-23
    Type: Initial release
  • Version 1.1: 2013-11-06
    Changes: Database references
  • Version 1.2: 2015-07-01
    Changes: Data collection
  • Version 1.3: 2018-03-07
    Changes: Data collection