5C3E

Crystal structure of a transcribing RNA Polymerase II complex reveals a complete transcription bubble


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.7 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.201 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Crystal Structure of a Transcribing RNA Polymerase II Complex Reveals a Complete Transcription Bubble.

Barnes, C.O.Calero, M.Malik, I.Graham, B.W.Spahr, H.Lin, G.Cohen, A.E.Brown, I.S.Zhang, Q.Pullara, F.Trakselis, M.A.Kaplan, C.D.Calero, G.

(2015) Mol.Cell 59: 258-269

  • DOI: 10.1016/j.molcel.2015.06.034
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Notwithstanding numerous published structures of RNA Polymerase II (Pol II), structural details of Pol II engaging a complete nucleic acid scaffold have been lacking. Here, we report the structures of TFIIF-stabilized transcribing Pol II complexes, r ...

    Notwithstanding numerous published structures of RNA Polymerase II (Pol II), structural details of Pol II engaging a complete nucleic acid scaffold have been lacking. Here, we report the structures of TFIIF-stabilized transcribing Pol II complexes, revealing the upstream duplex and full transcription bubble. The upstream duplex lies over a wedge-shaped loop from Rpb2 that engages its minor groove, providing part of the structural framework for DNA tracking during elongation. At the upstream transcription bubble fork, rudder and fork loop 1 residues spatially coordinate strand annealing and the nascent RNA transcript. At the downstream fork, a network of Pol II interactions with the non-template strand forms a rigid domain with the trigger loop (TL), allowing visualization of its open state. Overall, our observations suggest that "open/closed" conformational transitions of the TL may be linked to interactions with the non-template strand, possibly in a synchronized ratcheting manner conducive to polymerase translocation.


    Organizational Affiliation

    Department of Structural Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15260, USA; Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15260, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB1
A
1733Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPO21 (RPB1, RPB220, SUA8)
EC: 2.7.7.6
Find proteins for P04050 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P04050
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB2
B
1224Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB2 (RPB150, RPO22)
EC: 2.7.7.6
Find proteins for P08518 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P08518
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB3
C
318Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB3
Find proteins for P16370 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P16370
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB4
D
221Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB4
Find proteins for P20433 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P20433
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC1
E
215Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB5 (RPA7, RPC9)
Find proteins for P20434 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P20434
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC2
F
155Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPO26 (RPB6)
Find proteins for P20435 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P20435
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB7
G
179Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB7
Find proteins for P34087 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P34087
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC3
H
146Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB8
Find proteins for P20436 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P20436
Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB9
I
122Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB9
Find proteins for P27999 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P27999
Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC5
J
70Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB10
Find proteins for P22139 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P22139
Entity ID: 11
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB11
K
120Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPB11
Find proteins for P38902 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P38902
Entity ID: 12
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC4
L
70Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: RPC10 (RPB12)
Find proteins for P40422 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P40422
Entity ID: 13
MoleculeChainsLengthOrganism
Synthetic RNAR9synthetic construct
Entity ID: 14
MoleculeChainsLengthOrganism
Synthetic DNAS45synthetic construct
Entity ID: 15
MoleculeChainsLengthOrganism
Synthetic DNAU45synthetic construct
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
A, B, C, I, J, L
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.7 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.201 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 219.050α = 90.00
b = 390.940β = 90.00
c = 278.080γ = 90.00
Software Package:
Software NamePurpose
PDB_EXTRACTdata extraction
BUSTER-TNTrefinement
MOLREPphasing
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR01 GM112686
National Institutes of Health/National Institute of General Medical SciencesUnited StatesR01 GM097260
National Institutes of Health/National Institute of General Medical SciencesUnited StatesT32 GM008424

Revision History 

  • Version 1.0: 2015-08-26
    Type: Initial release
  • Version 1.1: 2017-09-27
    Type: Author supporting evidence, Database references, Derived calculations