5FJ8

Cryo-EM structure of yeast RNA polymerase III elongation complex at 3. 9 A


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.90 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 2.0 of the entry. See complete history


Literature

Molecular Structures of Unbound and Transcribing RNA Polymerase III.

Hoffmann, N.A.Jakobi, A.J.Moreno-Morcillo, M.Glatt, S.Kosinski, J.Hagen, W.J.H.Sachse, C.Muller, C.W.

(2015) Nature 528: 231

  • DOI: 10.1038/nature16143
  • Primary Citation of Related Structures:  
    5FJ8, 5FJA, 5FJ9

  • PubMed Abstract: 
  • Transcription of genes encoding small structured RNAs such as transfer RNAs, spliceosomal U6 small nuclear RNA and ribosomal 5S RNA is carried out by RNA polymerase III (Pol III), the largest yet structurally least characterized eukaryotic RNA polymerase ...

    Transcription of genes encoding small structured RNAs such as transfer RNAs, spliceosomal U6 small nuclear RNA and ribosomal 5S RNA is carried out by RNA polymerase III (Pol III), the largest yet structurally least characterized eukaryotic RNA polymerase. Here we present the cryo-electron microscopy structures of the Saccharomyces cerevisiae Pol III elongating complex at 3.9 Å resolution and the apo Pol III enzyme in two different conformations at 4.6 and 4.7 Å resolution, respectively, which allow the building of a 17-subunit atomic model of Pol III. The reconstructions reveal the precise orientation of the C82-C34-C31 heterotrimer in close proximity to the stalk. The C53-C37 heterodimer positions residues involved in transcription termination close to the non-template DNA strand. In the apo Pol III structures, the stalk adopts different orientations coupled with closed and open conformations of the clamp. Our results provide novel insights into Pol III-specific transcription and the adaptation of Pol III towards its small transcriptional targets.


    Organizational Affiliation

    European Molecular Biology Laboratory (EMBL), Structural and Computational Biology Unit, Meyerhofstrasse 1, 69117 Heidelberg, Germany.



Macromolecules

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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC1A1460Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.7.6
UniProt
Find proteins for P04051 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC2B1149Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.7.6
UniProt
Find proteins for P22276 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASES I AND III SUBUNIT RPAC1C335Saccharomyces cerevisiaeMutation(s): 0 
UniProt
Find proteins for P07703 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC9D161Saccharomyces cerevisiaeMutation(s): 0 
UniProt
Find proteins for P47076 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 1E215Saccharomyces cerevisiaeMutation(s): 0 
UniProt
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC2F155Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC8G212Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 3H146Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC10I110Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 10
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 5J70Saccharomyces cerevisiaeMutation(s): 0 
UniProt
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Entity ID: 11
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASES I AND III SUBUNIT RPAC2K142Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 12
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DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 4L70Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 13
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DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC5M282Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 14
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC4N422Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 15
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC3O654Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 16
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC6P317Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 17
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DNA-DIRECTED RNA POLYMERASE III SUBUNIT RPC7Q104Saccharomyces cerevisiaeMutation(s): 0 
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Entity ID: 18
MoleculeChainsLengthOrganismImage
RNAR23synthetic construct
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  • Entity ID: 19
    MoleculeChainsLengthOrganismImage
    NON-TEMPLATE DNAS15synthetic construct
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    • Entity ID: 20
      MoleculeChainsLengthOrganismImage
      TEMPLATE DNAT9synthetic construct
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      Experimental Data & Validation

      Experimental Data

      • Method: ELECTRON MICROSCOPY
      • Resolution: 3.90 Å
      • Aggregation State: PARTICLE 
      • Reconstruction Method: SINGLE PARTICLE 

      Structure Validation

      View Full Validation Report




      Entry History 

      Deposition Data

      Revision History  (Full details and data files)

      • Version 1.0: 2015-11-25
        Type: Initial release
      • Version 1.1: 2015-12-09
        Changes: Database references
      • Version 1.2: 2016-01-13
        Changes: Database references
      • Version 2.0: 2017-08-30
        Changes: Atomic model, Data collection, Derived calculations, Refinement description