4V1N

Architecture of the RNA polymerase II-Mediator core transcription initiation complex


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 7.8 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

Architecture of the RNA Polymerase II-Mediator Core Initiation Complex.

Plaschka, C.Lariviere, L.Wenzeck, L.Seizl, M.Hemann, M.Tegunov, D.Petrotchenko, E.V.Borchers, C.H.Baumeister, W.Herzog, F.Villa, E.Cramer, P.

(2015) Nature 518: 376

  • DOI: 10.1038/nature14229
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • The conserved co-activator complex Mediator enables regulated transcription initiation by RNA polymerase (Pol) II. Here we reconstitute an active 15-subunit core Mediator (cMed) comprising all essential Mediator subunits from Saccharomyces cerevisiae ...

    The conserved co-activator complex Mediator enables regulated transcription initiation by RNA polymerase (Pol) II. Here we reconstitute an active 15-subunit core Mediator (cMed) comprising all essential Mediator subunits from Saccharomyces cerevisiae. The cryo-electron microscopic structure of cMed bound to a core initiation complex was determined at 9.7 Å resolution. cMed binds Pol II around the Rpb4-Rpb7 stalk near the carboxy-terminal domain (CTD). The Mediator head module binds the Pol II dock and the TFIIB ribbon and stabilizes the initiation complex. The Mediator middle module extends to the Pol II foot with a 'plank' that may influence polymerase conformation. The Mediator subunit Med14 forms a 'beam' between the head and middle modules and connects to the tail module that is predicted to bind transcription activators located on upstream DNA. The Mediator 'arm' and 'hook' domains contribute to a 'cradle' that may position the CTD and TFIIH kinase to stimulate Pol II phosphorylation.


    Organizational Affiliation

    Max Planck Institute for Biophysical Chemistry, Department of Molecular Biology, Am Fassberg 11, 37077 Göttingen, Germany.




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 RPABC 1
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 RPABC 2
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
171Saccharomyces 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 RPABC 3
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 RPABC 5
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 RPABC 4
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
MoleculeChainsSequence LengthOrganismDetails
TRANSCRIPTION INITIATION FACTOR IIB
M
345Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SUA7
Find proteins for P29055 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P29055
Entity ID: 15
MoleculeChainsSequence LengthOrganismDetails
TATA-BOX-BINDING PROTEIN
O
181Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: SPT15 (BTF1, TBP1)
Find proteins for P13393 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P13393
Entity ID: 17
MoleculeChainsSequence LengthOrganismDetails
TRANSCRIPTION INITIATION FACTOR IIF SUBUNIT ALPHA
Q
734Saccharomyces mikataeMutation(s): 0 
Find proteins for A0A0H2UKZ8 (Saccharomyces mikatae)
Go to UniProtKB:  A0A0H2UKZ8
Entity ID: 18
MoleculeChainsSequence LengthOrganismDetails
TRANSCRIPTION INITIATION FACTOR IIF SUBUNIT BETA
R
331Saccharomyces cerevisiae (strain ATCC 204508 / S288c)Mutation(s): 0 
Gene Names: TFG2
EC: 3.6.4.12
Find proteins for P41896 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c))
Go to UniProtKB:  P41896
Entity ID: 14
MoleculeChainsLengthOrganism
NONTEMPLATE DNAN50synthetic construct
Entity ID: 16
MoleculeChainsLengthOrganism
RNAP6synthetic construct
Entity ID: 19
MoleculeChainsLengthOrganism
TEMPLATE DNAT58synthetic 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, M
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: ELECTRON MICROSCOPY
  • Resolution: 7.8 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-02-04
    Type: Initial release
  • Version 1.1: 2015-02-18
    Type: Database references
  • Version 1.2: 2015-02-25
    Type: Database references
  • Version 1.3: 2015-09-16
    Type: Other
  • Version 2.0: 2017-08-30
    Type: Advisory, Atomic model, Data collection, Derived calculations, Refinement description