6HKO

Yeast RNA polymerase I elongation complex bound to nucleotide analog GMPCPP


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.42 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

The cryo-EM structure of a 12-subunit variant of RNA polymerase I reveals dissociation of the A49-A34.5 heterodimer and rearrangement of subunit A12.2.

Tafur, L.Sadian, Y.Hanske, J.Wetzel, R.Weis, F.Muller, C.W.

(2019) Elife 8

  • DOI: 10.7554/eLife.43204
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • RNA polymerase (Pol) I is a 14-subunit enzyme that solely transcribes pre-ribosomal RNA. Cryo-electron microscopy (EM) structures of Pol I initiation and elongation complexes have given first insights into the molecular mechanisms of Pol I transcript ...

    RNA polymerase (Pol) I is a 14-subunit enzyme that solely transcribes pre-ribosomal RNA. Cryo-electron microscopy (EM) structures of Pol I initiation and elongation complexes have given first insights into the molecular mechanisms of Pol I transcription. Here, we present cryo-EM structures of yeast Pol I elongation complexes (ECs) bound to the nucleotide analog GMPCPP at 3.2 to 3.4 Å resolution that provide additional insight into the functional interplay between the Pol I-specific transcription-like factors A49-A34.5 and A12.2. Strikingly, most of the nucleotide-bound ECs lack the A49-A34.5 heterodimer and adopt a Pol II-like conformation, in which the A12.2 C-terminal domain is bound in a previously unobserved position at the A135 surface. Our structural and biochemical data suggest a mechanism where reversible binding of the A49-A34.5 heterodimer could contribute to the regulation of Pol I transcription initiation and elongation.


    Organizational Affiliation

    Structural and Computational Biology Unit, European Molecular Biology Laboratory, Heidelberg, Germany.



Macromolecules

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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase I subunit RPA190A1664Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPA190RPA1RRN1YOR341WO6276
EC: 2.7.7.6
Find proteins for P10964 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase I subunit RPA135B1203Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPA135RPA2RRN2SRP3YPR010CYP9531.03C
EC: 2.7.7.6
Find proteins for P22138 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I and III subunit RPAC1C335Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPC40RPC5YPR110CP8283.18
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase I subunit RPA14D137Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPA14YDR156WYD8358.11
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC1E215Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPB5RPA7RPC9YBR154CYBR1204
Find proteins for P20434 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC2F155Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPO26RPB6YPR187WP9677.8
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase I subunit RPA12I125Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPA12RRN4YJR063WJ1747
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Entity ID: 11
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I and III subunit RPAC2K142Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPC19YNL113WN1937
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Entity ID: 12
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC4L70Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPC10RPB12YHR143W-AYHR143BW
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Entity ID: 16
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase I subunit RPA34N233Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPA34YJL148WJ0637
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Entity ID: 17
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase I subunit RPA49M415Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPA49RRN13YNL248CN0880
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Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC5J70Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPB10YOR210W
Find proteins for P22139 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase I subunit RPA43G326Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPA43RRN12YOR340CO6271
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC3H146Saccharomyces cerevisiae S288CMutation(s): 0 
Gene Names: RPB8YOR224CYOR50-14
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  • Reference Sequence
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Entity ID: 13
MoleculeChainsLengthOrganism
RNAR20Saccharomyces cerevisiae S288C

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Entity ID: 15
MoleculeChainsLengthOrganism
Template strandT38Saccharomyces cerevisiae S288C

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Entity ID: 14
MoleculeChainsLengthOrganism
Non-template strandS38Saccharomyces cerevisiae S288C
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
G2P
Query on G2P

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T
PHOSPHOMETHYLPHOSPHONIC ACID GUANYLATE ESTER
C11 H18 N5 O13 P3
GXTIEXDFEKYVGY-KQYNXXCUSA-N
 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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A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.42 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
European Research CouncilGermanyERC-2013-AdG340964-POL1PIC

Revision History 

  • Version 1.0: 2019-04-03
    Type: Initial release
  • Version 1.1: 2019-12-11
    Changes: Other