4A3G

RNA Polymerase II initial transcribing complex with a 2nt DNA-RNA hybrid

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.166 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history. 

Literature

Structural Basis of Initial RNA Polymerase II Transcription.

Cheung, A.C.M., Sainsbury, S., Cramer, P.

(2011) Embo J. 30: 4755

  • DOI: 10.1038/emboj.2011.396
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    • During transcription initiation by RNA polymerase (Pol) II, a transient open promoter complex (OC) is converted to an initially transcribing complex (ITC) containing short RNAs, and to a stable elongation complex (EC). We report structures of a Pol I ...

    During transcription initiation by RNA polymerase (Pol) II, a transient open promoter complex (OC) is converted to an initially transcribing complex (ITC) containing short RNAs, and to a stable elongation complex (EC). We report structures of a Pol II-DNA complex mimicking part of the OC, and of complexes representing minimal ITCs with 2, 4, 5, 6, and 7 nucleotide (nt) RNAs, with and without a non-hydrolyzable nucleoside triphosphate (NTP) in the insertion site +1. The partial OC structure reveals that Pol II positions the melted template strand opposite the active site. The ITC-mimicking structures show that two invariant lysine residues anchor the 3'-proximal phosphate of short RNAs. Short DNA-RNA hybrids adopt a tilted conformation that excludes the +1 template nt from the active site. NTP binding induces complete DNA translocation and the standard hybrid conformation. Conserved NTP contacts indicate a universal mechanism of NTP selection. The essential residue Q1078 in the closed trigger loop binds the NTP 2'-OH group, explaining how the trigger loop couples catalysis to NTP selection, suppressing dNTP binding and DNA synthesis.

    Organizational Affiliation: 

    Gene Center and Department of Biochemistry, Center for Integrated Protein Science Munich (CIPSM), Ludwig-Maximilians-Universität München, Munich, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASE II SUBUNIT RPB1
A
1732Saccharomyces 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: 2
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: 3
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: 4
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: 5
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 1
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: 6
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 2
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: 7
MoleculeChainsSequence LengthOrganismDetails
RPB7, 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: 8
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 3
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: 9
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: 10
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 5
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: 11
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: 12
MoleculeChainsSequence LengthOrganismDetails
DNA-DIRECTED RNA POLYMERASES I, II, AND III SUBUNIT RPABC 4
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: 13
MoleculeChainsLengthOrganism
NON TEMPLATE DNA 5'-D(*GP*GP*CP*AP*CP*AP*AP*CP*TP*GP*CP *GP*CP*TP)-3'N14Saccharomyces cerevisiae
Entity ID: 14
MoleculeChainsLengthOrganism
TRANSCRIPT RNA 5'-R(*CP*AP)-3'P2Saccharomyces cerevisiae
Entity ID: 15
MoleculeChainsLengthOrganism
TEMPLATE DNA 5'-D(*AP*GP*CP*GP*CP*AP*GP*TP*TP*GP*TP*GP *CP*TP*AP*TP*GP*AP*BRUP*AP*TP*TP*TP*TP*TP*AP*DT)-3'T27Saccharomyces cerevisiae
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
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
BRU
Query on BRU
T
DNA LINKINGC9 H12 Br N2 O8 PDU
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 3.5 Å
  • R-Value Free: 0.194 
  • R-Value Work: 0.166 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 220.670α = 90.00
b = 394.130β = 90.00
c = 282.740γ = 90.00
Software Package:
Software NamePurpose
BUSTERrefinement

Structure Validation

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Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-02-08
    Type: Initial release
  • Version 1.1: 2014-03-19
    Type: Other