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- EMDB-17162: MAX-MAX bound to a nucleosome at SHL+5.1 and SHL-6.9. -

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Basic information

Entry
Database: EMDB / ID: EMD-17162
TitleMAX-MAX bound to a nucleosome at SHL+5.1 and SHL-6.9.
Map dataFull map.
Sample
  • Complex: MAX-MAX bound to a nucleosome at SHL+5.1 and SHL-6.9
    • Complex: Histones
      • Protein or peptide: Histone H3.1
      • Protein or peptide: Histone H4
      • Protein or peptide: Histone H2A type 1-B/E
      • Protein or peptide: Histone H2B type 1-J
    • Complex: DNA
      • DNA: DNA (127-MER)
      • DNA: DNA (127-MER)
    • Complex: MAX
      • Protein or peptide: MAX
KeywordsE-box / transcription factor / MAX-MAX / GENE REGULATION / TRANSCRIPTION
Biological speciesHomo sapiens (human) / Synthetic construct (others) / synthetic construct (others)
Methodsingle particle reconstruction / cryo EM / Resolution: 6.2 Å
AuthorsStoos L / Kempf G / Kater L / Thoma NH
Funding support Switzerland, 1 items
OrganizationGrant numberCountry
Swiss National Science Foundation31003A_179541 Switzerland
CitationJournal: Nature / Year: 2023
Title: Cooperation between bHLH transcription factors and histones for DNA access.
Authors: Alicia K Michael / Lisa Stoos / Priya Crosby / Nikolas Eggers / Xinyu Y Nie / Kristina Makasheva / Martina Minnich / Kelly L Healy / Joscha Weiss / Georg Kempf / Simone Cavadini / Lukas ...Authors: Alicia K Michael / Lisa Stoos / Priya Crosby / Nikolas Eggers / Xinyu Y Nie / Kristina Makasheva / Martina Minnich / Kelly L Healy / Joscha Weiss / Georg Kempf / Simone Cavadini / Lukas Kater / Jan Seebacher / Luca Vecchia / Deyasini Chakraborty / Luke Isbel / Ralph S Grand / Florian Andersch / Jennifer L Fribourgh / Dirk Schübeler / Johannes Zuber / Andrew C Liu / Peter B Becker / Beat Fierz / Carrie L Partch / Jerome S Menet / Nicolas H Thomä /
Abstract: The basic helix-loop-helix (bHLH) family of transcription factors recognizes DNA motifs known as E-boxes (CANNTG) and includes 108 members. Here we investigate how chromatinized E-boxes are engaged ...The basic helix-loop-helix (bHLH) family of transcription factors recognizes DNA motifs known as E-boxes (CANNTG) and includes 108 members. Here we investigate how chromatinized E-boxes are engaged by two structurally diverse bHLH proteins: the proto-oncogene MYC-MAX and the circadian transcription factor CLOCK-BMAL1 (refs. ). Both transcription factors bind to E-boxes preferentially near the nucleosomal entry-exit sites. Structural studies with engineered or native nucleosome sequences show that MYC-MAX or CLOCK-BMAL1 triggers the release of DNA from histones to gain access. Atop the H2A-H2B acidic patch, the CLOCK-BMAL1 Per-Arnt-Sim (PAS) dimerization domains engage the histone octamer disc. Binding of tandem E-boxes at endogenous DNA sequences occurs through direct interactions between two CLOCK-BMAL1 protomers and histones and is important for circadian cycling. At internal E-boxes, the MYC-MAX leucine zipper can also interact with histones H2B and H3, and its binding is indirectly enhanced by OCT4 elsewhere on the nucleosome. The nucleosomal E-box position and the type of bHLH dimerization domain jointly determine the histone contact, the affinity and the degree of competition and cooperativity with other nucleosome-bound factors.
History
DepositionApr 19, 2023-
Header (metadata) releaseMay 24, 2023-
Map releaseMay 24, 2023-
UpdateJul 26, 2023-
Current statusJul 26, 2023Processing site: PDBe / Status: Released

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Structure visualization

Supplemental images

emd_17162.png

Downloads & links

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Map

FileDownload / File: emd_17162.map.gz / Format: CCP4 / Size: 64 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationFull map.
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.87 Å/pix.
x 256 pix.
= 222.976 Å		0.87 Å/pix.
x 256 pix.
= 222.976 Å		0.87 Å/pix.
x 256 pix.
= 222.976 Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.871 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.173
Minimum - Maximum-0.12291567 - 1.0744865
Average (Standard dev.)0.012410997 (±0.06919344)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions256256256
Spacing256256256
CellA=B=C: 222.976 Å
α=β=γ: 90.0 °

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Supplemental data

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Half map: Half map B.

Fileemd_17162_half_map_1.map
AnnotationHalf map B.
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half map A.

Fileemd_17162_half_map_2.map
AnnotationHalf map A.
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Sample components

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Entire : MAX-MAX bound to a nucleosome at SHL+5.1 and SHL-6.9

EntireName: MAX-MAX bound to a nucleosome at SHL+5.1 and SHL-6.9
Components
  • Complex: MAX-MAX bound to a nucleosome at SHL+5.1 and SHL-6.9
    • Complex: Histones
      • Protein or peptide: Histone H3.1
      • Protein or peptide: Histone H4
      • Protein or peptide: Histone H2A type 1-B/E
      • Protein or peptide: Histone H2B type 1-J
    • Complex: DNA
      • DNA: DNA (127-MER)
      • DNA: DNA (127-MER)
    • Complex: MAX
      • Protein or peptide: MAX

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Supramolecule #1: MAX-MAX bound to a nucleosome at SHL+5.1 and SHL-6.9

SupramoleculeName: MAX-MAX bound to a nucleosome at SHL+5.1 and SHL-6.9 / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#7

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Supramolecule #2: Histones

SupramoleculeName: Histones / type: complex / ID: 2 / Parent: 1 / Macromolecule list: #1-#4
Source (natural)Organism: Homo sapiens (human)

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Supramolecule #3: DNA

SupramoleculeName: DNA / type: complex / ID: 3 / Parent: 1 / Macromolecule list: #5-#6
Source (natural)Organism: Synthetic construct (others)

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Supramolecule #4: MAX

SupramoleculeName: MAX / type: complex / ID: 4 / Parent: 1 / Macromolecule list: #7
Source (natural)Organism: Homo sapiens (human)

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Macromolecule #1: Histone H3.1

MacromoleculeName: Histone H3.1 / type: protein_or_peptide / ID: 1 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString:
GSHMARTKQT ARKSTGGKAP RKQLATKAAR KSAPATGGVK KPHRYRPGTV ALREIRRYQK STELLIRKLP FQRLVREIAQ DFKTDLRFQ SSAVMALQEA CEAYLVGLFE DTNLCAIHAK RVTIMPKDIQ LARRIRGERA

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Macromolecule #2: Histone H4

MacromoleculeName: Histone H4 / type: protein_or_peptide / ID: 2 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString:
GSHMSGRGKG GKGLGKGGAK RHRKVLRDNI QGITKPAIRR LARRGGVKRI SGLIYEETRG VLKVFLENVI RDAVTYTEHA KRKTVTAMD VVYALKRQGR TLYGFGG

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Macromolecule #3: Histone H2A type 1-B/E

MacromoleculeName: Histone H2A type 1-B/E / type: protein_or_peptide / ID: 3 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString:
GSHMSGRGKQ GGKARAKAKT RSSRAGLQFP VGRVHRLLRK GNYSERVGAG APVYLAAVLE YLTAEILELA GNAARDNKKT RIIPRHLQL AIRNDEELNK LLGRVTIAQG GVLPNIQAVL LPKKTESHHK AKGK

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Macromolecule #4: Histone H2B type 1-J

MacromoleculeName: Histone H2B type 1-J / type: protein_or_peptide / ID: 4 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Escherichia coli 'BL21-Gold(DE3)pLysS AG' (bacteria)
SequenceString:
GSHMPEPAKS APAPKKGSKK AVTKAQKKDG KKRKRSRKES YSIYVYKVLK QVHPDTGISS KAMGIMNSFV NDIFERIAGE ASRLAHYNK RSTITSREIQ TAVRLLLPGE LAKHAVSEGT KAVTKYTSA

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Macromolecule #7: MAX

MacromoleculeName: MAX / type: protein_or_peptide / ID: 7 / Enantiomer: LEVO
Source (natural)Organism: Homo sapiens (human)
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
MSDNDDIEVE SDEEQPRFQS AADKRAHHNA LERKRRDHIK DSFHSLRDSV PSLQGEKASR AQILDKATEY IQYMRRKNHT HQQDIDDLKR QNALLEQQVR ALEKARSSAQ LQTNYPSSDN SLYTNAKGST ISAFDGGSDS SSESEPEEPQ SRKKLRMEAS

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Macromolecule #5: DNA (127-MER)

MacromoleculeName: DNA (127-MER) / type: dna / ID: 5 / Classification: DNA
Source (natural)Organism: synthetic construct (others)
SequenceString: (DC)(DT)(DT)(DT)(DG)(DT)(DT)(DA)(DT)(DG) (DC)(DA)(DA)(DA)(DT)(DC)(DG)(DG)(DG)(DG) (DT)(DG)(DG)(DG)(DG)(DC)(DG)(DT)(DC) (DG)(DT)(DA)(DG)(DA)(DC)(DA)(DG)(DC)(DT) (DC) (DT)(DA)(DG)(DC)(DA)(DC) ...String:
(DC)(DT)(DT)(DT)(DG)(DT)(DT)(DA)(DT)(DG) (DC)(DA)(DA)(DA)(DT)(DC)(DG)(DG)(DG)(DG) (DT)(DG)(DG)(DG)(DG)(DC)(DG)(DT)(DC) (DG)(DT)(DA)(DG)(DA)(DC)(DA)(DG)(DC)(DT) (DC) (DT)(DA)(DG)(DC)(DA)(DC)(DC)(DG) (DC)(DT)(DT)(DA)(DA)(DA)(DC)(DG)(DC)(DA) (DC)(DG) (DT)(DA)(DC)(DG)(DC)(DG)(DC) (DT)(DG)(DT)(DC)(DC)(DC)(DC)(DC)(DG)(DC) (DG)(DT)(DT) (DT)(DT)(DA)(DA)(DC)(DC) (DG)(DC)(DC)(DA)(DA)(DG)(DG)(DG)(DG)(DA) (DT)(DT)(DA)(DC) (DT)(DC)(DC)(DC)(DT) (DA)(DG)(DT)(DC)(DT)(DC)(DC)(DA)(DG)(DG) (DC)(DA)(DC)(DG)(DT) (DG)(DT)(DC)(DA) (DG)(DA)(DT)

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Macromolecule #6: DNA (127-MER)

MacromoleculeName: DNA (127-MER) / type: dna / ID: 6 / Classification: DNA
Source (natural)Organism: synthetic construct (others)
SequenceString: (DA)(DT)(DC)(DT)(DG)(DA)(DC)(DA)(DC)(DG) (DT)(DG)(DC)(DC)(DT)(DG)(DG)(DA)(DG)(DA) (DC)(DT)(DA)(DG)(DG)(DG)(DA)(DG)(DT) (DA)(DA)(DT)(DC)(DC)(DC)(DC)(DT)(DT)(DG) (DG) (DC)(DG)(DG)(DT)(DT)(DA) ...String:
(DA)(DT)(DC)(DT)(DG)(DA)(DC)(DA)(DC)(DG) (DT)(DG)(DC)(DC)(DT)(DG)(DG)(DA)(DG)(DA) (DC)(DT)(DA)(DG)(DG)(DG)(DA)(DG)(DT) (DA)(DA)(DT)(DC)(DC)(DC)(DC)(DT)(DT)(DG) (DG) (DC)(DG)(DG)(DT)(DT)(DA)(DA)(DA) (DA)(DC)(DG)(DC)(DG)(DG)(DG)(DG)(DG)(DA) (DC)(DA) (DG)(DC)(DG)(DC)(DG)(DT)(DA) (DC)(DG)(DT)(DG)(DC)(DG)(DT)(DT)(DT)(DA) (DA)(DG)(DC) (DG)(DG)(DT)(DG)(DC)(DT) (DA)(DG)(DA)(DG)(DC)(DT)(DG)(DT)(DC)(DT) (DA)(DC)(DG)(DA) (DC)(DG)(DC)(DC)(DC) (DC)(DA)(DC)(DC)(DC)(DC)(DG)(DA)(DT)(DT) (DT)(DG)(DC)(DA)(DT) (DA)(DA)(DC)(DA) (DA)(DA)(DG)

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Experimental details

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Structure determination

Methodcryo EM
Processingsingle particle reconstruction
Aggregation stateparticle

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Sample preparation

BufferpH: 7.2
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Image recordingFilm or detector model: FEI FALCON IV (4k x 4k) / Average electron dose: 50.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 1.8 µm / Nominal defocus min: 0.8 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Startup modelType of model: OTHER
Final reconstructionResolution.type: BY AUTHOR / Resolution: 6.2 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 64689
Initial angle assignmentType: OTHER
Final angle assignmentType: OTHER
FSC plot (resolution estimation)

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