6T93

Nucleosome with OCT4-SOX2 motif at SHL-6

Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.49 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Mechanisms of OCT4-SOX2 motif readout on nucleosomes.

Michael, A.K., Grand, R.S., Isbel, L., Cavadini, S., Kozicka, Z., Kempf, G., Bunker, R.D., Schenk, A.D., Graff-Meyer, A., Pathare, G.R., Weiss, J., Matsumoto, S., Burger, L., Schubeler, D., Thoma, N.H.

(2020) Science 368: 1460-1465

  • DOI: https://doi.org/10.1126/science.abb0074
  • Primary Citation of Related Structures:  
    6T90, 6T93, 6YOV

  • PubMed Abstract: 

    • Transcription factors (TFs) regulate gene expression through chromatin where nucleosomes restrict DNA access. To study how TFs bind nucleosome-occupied motifs, we focused on the reprogramming factors OCT4 and SOX2 in mouse embryonic stem cells. We determined TF engagement throughout a nucleosome at base-pair resolution in vitro, enabling structure determination by cryo-electron microscopy at two preferred positions ...

    Transcription factors (TFs) regulate gene expression through chromatin where nucleosomes restrict DNA access. To study how TFs bind nucleosome-occupied motifs, we focused on the reprogramming factors OCT4 and SOX2 in mouse embryonic stem cells. We determined TF engagement throughout a nucleosome at base-pair resolution in vitro, enabling structure determination by cryo-electron microscopy at two preferred positions. Depending on motif location, OCT4 and SOX2 differentially distort nucleosomal DNA. At one position, OCT4-SOX2 removes DNA from histone H2A and histone H3; however, at an inverted motif, the TFs only induce local DNA distortions. OCT4 uses one of its two DNA-binding domains to engage DNA in both structures, reading out a partial motif. These findings explain site-specific nucleosome engagement by the pluripotency factors OCT4 and SOX2, and they reveal how TFs distort nucleosomes to access chromatinized motifs.

    Organizational Affiliation: 

    Friedrich Miescher Institute for Biomedical Research, Maulbeerstrasse 66, 4058 Basel, Switzerland. nicolas.thoma@fmi.ch dirk@fmi.ch.



Macromolecules

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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
Histone H3.1
A, E
139Homo sapiensMutation(s): 0 
Gene Names: 
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Find proteins for P68431 (Homo sapiens)
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PHAROS:  P68431
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UniProt GroupP68431
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Histone H4
B, F
106Homo sapiensMutation(s): 0 
Gene Names: 
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Find proteins for P62805 (Homo sapiens)
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PHAROS:  P62805
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UniProt GroupP62805
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
Histone H2A type 1-B/E
C, G
133Homo sapiensMutation(s): 0 
Gene Names: HIST1H2AB, H2AFM, HIST1H2AE, H2AFA, H2AC4, H2AC8
UniProt & NIH Common Fund Data Resources
Find proteins for P04908 (Homo sapiens)
Explore P04908 
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PHAROS:  P04908
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UniProt GroupP04908
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
Histone H2B type 1-J
D, H
129Homo sapiensMutation(s): 0 
Gene Names: HIST1H2BJ, H2BFR, H2BC11
UniProt & NIH Common Fund Data Resources
Find proteins for P06899 (Homo sapiens)
Explore P06899 
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Entity ID: 5
MoleculeChainsLengthOrganismImage
DNA (153-MER)153synthetic construct
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Entity ID: 6
MoleculeChainsLengthOrganismImage
DNA (153-MER)153synthetic construct
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Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.49 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
RECONSTRUCTIONcryoSPARCv2

Structure Validation

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Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
Swiss National Science FoundationSwitzerlandSinergia-CRSII3_160734

Revision History  (Full details and data files)

  • Version 1.0: 2020-05-06
    Type: Initial release
  • Version 1.1: 2020-05-13
    Changes: Database references
  • Version 1.2: 2020-07-08
    Changes: Database references