5IVW

Human core TFIIH bound to DNA within the PIC


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 10 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Near-atomic resolution visualization of human transcription promoter opening.

He, Y.Yan, C.Fang, J.Inouye, C.Tjian, R.Ivanov, I.Nogales, E.

(2016) Nature 533: 359-365

  • DOI: 10.1038/nature17970
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • In eukaryotic transcription initiation, a large multi-subunit pre-initiation complex (PIC) that assembles at the core promoter is required for the opening of the duplex DNA and identification of the start site for transcription by RNA polymerase II. ...

    In eukaryotic transcription initiation, a large multi-subunit pre-initiation complex (PIC) that assembles at the core promoter is required for the opening of the duplex DNA and identification of the start site for transcription by RNA polymerase II. Here we use cryo-electron microscropy (cryo-EM) to determine near-atomic resolution structures of the human PIC in a closed state (engaged with duplex DNA), an open state (engaged with a transcription bubble), and an initially transcribing complex (containing six base pairs of DNA-RNA hybrid). Our studies provide structures for previously uncharacterized components of the PIC, such as TFIIE and TFIIH, and segments of TFIIA, TFIIB and TFIIF. Comparison of the different structures reveals the sequential conformational changes that accompany the transition from each state to the next throughout the transcription initiation process. This analysis illustrates the key role of TFIIB in transcription bubble stabilization and provides strong structural support for a translocase activity of XPB.


    Organizational Affiliation

    Molecular Biophysics and Integrative Bio-Imaging Division, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
TFIIH basal transcription factor complex helicase XPB subunit
V
782Homo sapiensMutation(s): 0 
Gene Names: ERCC3 (XPB, XPBC)
EC: 3.6.4.12
Find proteins for P19447 (Homo sapiens)
Go to Gene View: ERCC3
Go to UniProtKB:  P19447
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
TFIIH basal transcription factor complex helicase XPD subunit
W
760Homo sapiensMutation(s): 0 
Gene Names: ERCC2 (XPD, XPDC)
EC: 3.6.4.12
Find proteins for P18074 (Homo sapiens)
Go to Gene View: ERCC2
Go to UniProtKB:  P18074
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
General transcription factor IIH subunit 2
0
395Homo sapiensMutation(s): 0 
Gene Names: GTF2H2 (BTF2P44)
Find proteins for Q13888 (Homo sapiens)
Go to Gene View: GTF2H2
Go to UniProtKB:  Q13888
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
General transcription factor IIH subunit 5
1
71Homo sapiensMutation(s): 0 
Gene Names: GTF2H5 (C6orf175, TTDA)
Find proteins for Q6ZYL4 (Homo sapiens)
Go to Gene View: GTF2H5
Go to UniProtKB:  Q6ZYL4
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
General transcription factor IIH subunit 4
2
462Homo sapiensMutation(s): 0 
Gene Names: GTF2H4
Find proteins for Q92759 (Homo sapiens)
Go to Gene View: GTF2H4
Go to UniProtKB:  Q92759
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
General transcription factor IIH subunit 3
3
308Homo sapiensMutation(s): 0 
Gene Names: GTF2H3
Find proteins for Q13889 (Homo sapiens)
Go to Gene View: GTF2H3
Go to UniProtKB:  Q13889
Entity ID: 7
MoleculeChainsLengthOrganism
scp-XX19Homo sapiens
Entity ID: 8
MoleculeChainsLengthOrganism
scp-YY20Homo sapiens
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 10 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

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 StatesGM63072
National Institutes of Health/National Institute of General Medical SciencesUnited StatesGM110387
National Science Foundation (United States)United StatesMCB-1149521
Howard Hughes Medical InstituteUnited States--

Revision History 

  • Version 1.0: 2016-05-18
    Type: Initial release
  • Version 1.1: 2016-05-25
    Type: Database references
  • Version 1.2: 2016-06-22
    Type: Database references
  • Version 1.3: 2017-09-13
    Type: Author supporting evidence, Database references