2R92

Elongation complex of RNA polymerase II with artificial RdRP scaffold


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.8 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.212 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Molecular basis of RNA-dependent RNA polymerase II activity.

Lehmann, E.Brueckner, F.Cramer, P.

(2007) Nature 450: 445-449

  • DOI: 10.1038/nature06290
  • Primary Citation of Related Structures:  2R93

  • PubMed Abstract: 
  • RNA polymerase (Pol) II catalyses DNA-dependent RNA synthesis during gene transcription. There is, however, evidence that Pol II also possesses RNA-dependent RNA polymerase (RdRP) activity. Pol II can use a homopolymeric RNA template, can extend RNA ...

    RNA polymerase (Pol) II catalyses DNA-dependent RNA synthesis during gene transcription. There is, however, evidence that Pol II also possesses RNA-dependent RNA polymerase (RdRP) activity. Pol II can use a homopolymeric RNA template, can extend RNA by several nucleotides in the absence of DNA, and has been implicated in the replication of the RNA genomes of hepatitis delta virus (HDV) and plant viroids. Here we show the intrinsic RdRP activity of Pol II with only pure polymerase, an RNA template-product scaffold and nucleoside triphosphates (NTPs). Crystallography reveals the template-product duplex in the site occupied by the DNA-RNA hybrid during transcription. RdRP activity resides at the active site used during transcription, but it is slower and less processive than DNA-dependent activity. RdRP activity is also obtained with part of the HDV antigenome. The complex of transcription factor IIS (TFIIS) with Pol II can cleave one HDV strand, create a reactive stem-loop in the hybrid site, and extend the new RNA 3' end. Short RNA stem-loops with a 5' extension suffice for activity, but their growth to a critical length apparently impairs processivity. The RdRP activity of Pol II provides a missing link in molecular evolution, because it suggests that Pol II evolved from an ancient replicase that duplicated RNA genomes.


    Organizational Affiliation

    Gene Center Munich and Center for integrated Protein Science (CiPSM), Department of Chemistry and Biochemistry, Ludwig-Maximilians-Universit√§t M√ľnchen, Feodor-Lynen-Strasse 25, 81377 Munich, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB1
A
1733Saccharomyces cerevisiae (strain ATCC 204508 / S288c)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: 4
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB2
B
1224Saccharomyces cerevisiae (strain ATCC 204508 / S288c)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: 5
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB3
C
318Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RPB3
Find proteins for P16370 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P16370
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB4
D
221Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RPB4
Find proteins for P20433 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P20433
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC1
E
215Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RPB5 (RPA7, RPC9)
Find proteins for P20434 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P20434
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC2
F
155Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RPO26 (RPB6)
Find proteins for P20435 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P20435
Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB7
G
171Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RPB7
Find proteins for P34087 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P34087
Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC3
H
146Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RPB8
Find proteins for P20436 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P20436
Entity ID: 11
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB9
I
122Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RPB9
Find proteins for P27999 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P27999
Entity ID: 12
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC5
J
70Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RPB10
Find proteins for P22139 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P22139
Entity ID: 13
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerase II subunit RPB11
K
120Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RPB11
Find proteins for P38902 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P38902
Entity ID: 14
MoleculeChainsSequence LengthOrganismDetails
DNA-directed RNA polymerases I, II, and III subunit RPABC4
L
70Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Gene Names: RPC10 (RPB12)
Find proteins for P40422 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P40422
Entity ID: 1
MoleculeChainsLengthOrganism
RNA (5'-R(*UP*GP*CP*AP*UP*AP*AP*AP*GP*AP*CP*CP*AP*GP*GP*C)-3')P16N/A
Entity ID: 2
MoleculeChainsLengthOrganism
RNA (5'-R(*CP*UP*UP*GP*AP*CP*GP*CP*CP*UP*GP*GP*UP*CP*AP*AP*A)-3')T17N/A
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: 3.8 Å
  • R-Value Free: 0.246 
  • R-Value Work: 0.212 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 222.675α = 90.00
b = 393.853β = 90.00
c = 283.551γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
MAR345data collection
PHASERphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-11-27
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-10-25
    Type: Refinement description