1I50

RNA POLYMERASE II CRYSTAL FORM II AT 2.8 A RESOLUTION

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.229 

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This is version 1.3 of the entry. See complete history. 


Literature

Structural basis of transcription: RNA polymerase II at 2.8 angstrom resolution.

Cramer, P., Bushnell, D.A., Kornberg, R.D.

(2001) Science 292: 1863-1876

  • DOI: 10.1126/science.1059493
  • Primary Citation of Related Structures:  
    1I3Q, 1I50

  • PubMed Abstract: 

    • Structures of a 10-subunit yeast RNA polymerase II have been derived from two crystal forms at 2.8 and 3.1 angstrom resolution. Comparison of the structures reveals a division of the polymerase into four mobile modules, including a clamp, shown previously to swing over the active center ...

    Structures of a 10-subunit yeast RNA polymerase II have been derived from two crystal forms at 2.8 and 3.1 angstrom resolution. Comparison of the structures reveals a division of the polymerase into four mobile modules, including a clamp, shown previously to swing over the active center. In the 2.8 angstrom structure, the clamp is in an open state, allowing entry of straight promoter DNA for the initiation of transcription. Three loops extending from the clamp may play roles in RNA unwinding and DNA rewinding during transcription. A 2.8 angstrom difference Fourier map reveals two metal ions at the active site, one persistently bound and the other possibly exchangeable during RNA synthesis. The results also provide evidence for RNA exit in the vicinity of the carboxyl-terminal repeat domain, coupling synthesis to RNA processing by enzymes bound to this domain.

    Related Citations: 
    • Architecture of RNA Polymerase II and Implications for the Transcription Mechanism
      Cramer, P., Bushnell, D.A., Fu, J., Gnatt, A.L., Maier-Davis, B., Thompson, N.E., Burgess, R.R., Edwards, A.M., David, P.R., Kornberg, R.D.
      (2000) Science 288: 640
    Organizational Affiliation: 

    Department of Structural Biology, Stanford University School of Medicine, Stanford, CA 94305-5126, USA.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE II LARGEST SUBUNITA1733Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.7.6
UniProt
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE II 140KD POLYPEPTIDEB1224Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.7.6
UniProt
Find proteins for P08518 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE II 45KD POLYPEPTIDEC318Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.7.6
UniProt
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE II 27KD POLYPEPTIDED [auth E]215Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.7.6
UniProt
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Entity ID: 5
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE II 23KD POLYPEPTIDEE [auth F]155Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.7.6
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Entity ID: 6
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE II 14.5KD POLYPEPTIDEF [auth H]146Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.7.6
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Entity ID: 7
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE II 14.2KD POLYPEPTIDEG [auth I]122Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.7.6
UniProt
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Entity ID: 8
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE II 8.3KD POLYPEPTIDEH [auth J]70Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.7.6
UniProt
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Entity ID: 9
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE II 13.6KD POLYPEPTIDEI [auth K]120Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.7.6
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Entity ID: 10
MoleculeChainsSequence LengthOrganismDetailsImage
DNA-DIRECTED RNA POLYMERASE II 7.7KD POLYPEPTIDEJ [auth L]70Saccharomyces cerevisiaeMutation(s): 0 
EC: 2.7.7.6
UniProt
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Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.80 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.229 
  • Space Group: I 2 2 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 122.7α = 90
b = 223β = 90
c = 376.1γ = 90
Software Package:
Software NamePurpose
SHARPphasing
CNSrefinement
DENZOdata reduction
SCALEPACKdata scaling

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2001-04-23
    Type: Initial release
  • Version 1.1: 2008-04-01
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Derived calculations, Version format compliance
  • Version 1.3: 2018-01-31
    Changes: Experimental preparation