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- EMDB-22698: nucleosome and Gal4 complex -

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Basic information

Entry
Database: EMDB / ID: EMD-22698
Titlenucleosome and Gal4 complex
Map dataNucleosome and Gal4 complex
Sample
  • Complex: the nucleosome and Gal4 domain complex
    • Protein or peptide: Histone H3
    • Protein or peptide: Histone H4
    • Protein or peptide: Histone H2A.1
    • Protein or peptide: Histone H2B.1
    • DNA: DNA (147-MER)
    • DNA: DNA (147-MER)
    • Protein or peptide: Centromere DNA-binding protein complex CBF3 subunit B
  • Ligand: ZINC ION
Function / homology
Function and homology information


CBF3 complex / sexual sporulation resulting in formation of a cellular spore / septin ring assembly / HDMs demethylate histones / HATs acetylate histones / Condensation of Prophase Chromosomes / global genome nucleotide-excision repair / RNA polymerase I upstream activating factor complex / centromeric DNA binding / SUMOylation of chromatin organization proteins ...CBF3 complex / sexual sporulation resulting in formation of a cellular spore / septin ring assembly / HDMs demethylate histones / HATs acetylate histones / Condensation of Prophase Chromosomes / global genome nucleotide-excision repair / RNA polymerase I upstream activating factor complex / centromeric DNA binding / SUMOylation of chromatin organization proteins / kinetochore assembly / replication fork protection complex / RMTs methylate histone arginines / postreplication repair / DNA binding, bending / mitotic spindle assembly checkpoint signaling / positive regulation of transcription by RNA polymerase I / nucleolar large rRNA transcription by RNA polymerase I / rRNA transcription / CENP-A containing nucleosome / kinetochore / nucleosome assembly / structural constituent of chromatin / nucleosome / chromatin organization / DNA-binding transcription factor activity, RNA polymerase II-specific / protein heterodimerization activity / DNA repair / regulation of DNA-templated transcription / negative regulation of transcription by RNA polymerase II / DNA binding / zinc ion binding / identical protein binding / nucleus
Similarity search - Function
Centromere DNA-binding protein complex CBF3 subunit B, C-terminal / Centromere DNA-binding protein complex CBF3 subunit B / Zn(2)-C6 fungal-type DNA-binding domain signature. / Fungal Zn(2)-Cys(6) binuclear cluster domain / Zn(2)-C6 fungal-type DNA-binding domain superfamily / Zn(2)-C6 fungal-type DNA-binding domain profile. / GAL4-like Zn(II)2Cys6 (or C6 zinc) binuclear cluster DNA-binding domain / Zn(2)-C6 fungal-type DNA-binding domain / Histone H2B signature. / Histone H2B ...Centromere DNA-binding protein complex CBF3 subunit B, C-terminal / Centromere DNA-binding protein complex CBF3 subunit B / Zn(2)-C6 fungal-type DNA-binding domain signature. / Fungal Zn(2)-Cys(6) binuclear cluster domain / Zn(2)-C6 fungal-type DNA-binding domain superfamily / Zn(2)-C6 fungal-type DNA-binding domain profile. / GAL4-like Zn(II)2Cys6 (or C6 zinc) binuclear cluster DNA-binding domain / Zn(2)-C6 fungal-type DNA-binding domain / Histone H2B signature. / Histone H2B / Histone H2B / Histone H2A conserved site / Histone H2A signature. / Histone H2A, C-terminal domain / C-terminus of histone H2A / Histone H2A / Histone 2A / Histone H4, conserved site / Histone H4 signature. / Histone H4 / Histone H4 / CENP-T/Histone H4, histone fold / Centromere kinetochore component CENP-T histone fold / Histone H3 signature 1. / Histone H3 signature 2. / Histone H3 / Histone H3/CENP-A / Histone H2A/H2B/H3 / Core histone H2A/H2B/H3/H4 / Histone-fold
Similarity search - Domain/homology
Histone H2B.1 / Histone H4 / Histone H2A.1 / Centromere DNA-binding protein complex CBF3 subunit B / Histone H3
Similarity search - Component
Biological speciesSaccharomyces cerevisiae (brewer's yeast) / Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Methodsingle particle reconstruction / cryo EM / Resolution: 4.2 Å
AuthorsRuifang G / Yawen B
CitationJournal: Nat Commun / Year: 2021
Title: Structural and dynamic mechanisms of CBF3-guided centromeric nucleosome formation.
Authors: Ruifang Guan / Tengfei Lian / Bing-Rui Zhou / Emily He / Carl Wu / Martin Singleton / Yawen Bai /
Abstract: Accurate chromosome segregation relies on the specific centromeric nucleosome-kinetochore interface. In budding yeast, the centromere CBF3 complex guides the deposition of CENP-A, an H3 variant, to ...Accurate chromosome segregation relies on the specific centromeric nucleosome-kinetochore interface. In budding yeast, the centromere CBF3 complex guides the deposition of CENP-A, an H3 variant, to form the centromeric nucleosome in a DNA sequence-dependent manner. Here, we determine the structures of the centromeric nucleosome containing the native CEN3 DNA and the CBF3core bound to the canonical nucleosome containing an engineered CEN3 DNA. The centromeric nucleosome core structure contains 115 base pair DNA including a CCG motif. The CBF3core specifically recognizes the nucleosomal CCG motif through the Gal4 domain while allosterically altering the DNA conformation. Cryo-EM, modeling, and mutational studies reveal that the CBF3core forms dynamic interactions with core histones H2B and CENP-A in the CEN3 nucleosome. Our results provide insights into the structure of the budding yeast centromeric nucleosome and the mechanism of its assembly, which have implications for analogous processes of human centromeric nucleosome formation.
History
DepositionSep 22, 2020-
Header (metadata) releaseMar 31, 2021-
Map releaseMar 31, 2021-
UpdateMar 31, 2021-
Current statusMar 31, 2021Processing site: RCSB / Status: Released

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Structure visualization

Movie
  • Surface view with section colored by density value
  • Surface level: 0.02
  • Imaged by UCSF Chimera
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  • Surface view colored by cylindrical radius
  • Surface level: 0.02
  • Imaged by UCSF Chimera
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  • Surface view with fitted model
  • Atomic models: PDB-7k7g
  • Surface level: 0.02
  • Imaged by UCSF Chimera
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Movie viewer
Structure viewerEM map:
SurfViewMolmilJmol/JSmol
Supplemental images

emd_22698.png

Downloads & links

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Map

FileDownload / File: emd_22698.map.gz / Format: CCP4 / Size: 83.7 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
AnnotationNucleosome and Gal4 complex
Voxel sizeX=Y=Z: 1.06 Å
Density
Contour LevelBy AUTHOR: 0.02 / Movie #1: 0.02
Minimum - Maximum-0.017226133 - 0.062269825
Average (Standard dev.)0.0001518656 (±0.0022766711)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions280280280
Spacing280280280
CellA=B=C: 296.8 Å
α=β=γ: 90.0 °

CCP4 map header:

modeImage stored as Reals
Å/pix. X/Y/Z1.061.061.06
M x/y/z280280280
origin x/y/z0.0000.0000.000
length x/y/z296.800296.800296.800
α/β/γ90.00090.00090.000
start NX/NY/NZ15150
NX/NY/NZ9999114
MAP C/R/S123
start NC/NR/NS000
NC/NR/NS280280280
D min/max/mean-0.0170.0620.000

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Supplemental data

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Sample components

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Entire : the nucleosome and Gal4 domain complex

EntireName: the nucleosome and Gal4 domain complex
Components
  • Complex: the nucleosome and Gal4 domain complex
    • Protein or peptide: Histone H3
    • Protein or peptide: Histone H4
    • Protein or peptide: Histone H2A.1
    • Protein or peptide: Histone H2B.1
    • DNA: DNA (147-MER)
    • DNA: DNA (147-MER)
    • Protein or peptide: Centromere DNA-binding protein complex CBF3 subunit B
  • Ligand: ZINC ION

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Supramolecule #1: the nucleosome and Gal4 domain complex

SupramoleculeName: the nucleosome and Gal4 domain complex / type: complex / ID: 1 / Parent: 0 / Macromolecule list: #1-#7
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Recombinant expressionOrganism: Escherichia phage EcSzw-2 (virus)

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Macromolecule #1: Histone H3

MacromoleculeName: Histone H3 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c
Molecular weightTheoretical: 15.391007 KDa
Recombinant expressionOrganism: Escherichia phage EcSzw-2 (virus)
SequenceString:
MARTKQTARK STGGKAPRKQ LASKAARKSA PSTGGVKKPH RYKPGTVALR EIRRFQKSTE LLIRKLPFQR LVREIAQDFK TDLRFQSSA IGALQESVEA YLVSLFEDTN LAAIHAKRVT IQKKDIKLAR RLRGERS

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Macromolecule #2: Histone H4

MacromoleculeName: Histone H4 / type: protein_or_peptide / ID: 2 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c
Molecular weightTheoretical: 11.39539 KDa
Recombinant expressionOrganism: Escherichia phage EcSzw-2 (virus)
SequenceString:
MSGRGKGGKG LGKGGAKRHR KILRDNIQGI TKPAIRRLAR RGGVKRISGL IYEEVRAVLK SFLESVIRDS VTYTEHAKRK TVTSLDVVY ALKRQGRTLY GFGG

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Macromolecule #3: Histone H2A.1

MacromoleculeName: Histone H2A.1 / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c
Molecular weightTheoretical: 14.013177 KDa
Recombinant expressionOrganism: Escherichia phage EcSzw-2 (virus)
SequenceString:
MSGGKGGKAG SAAKASQSRS AKAGLTFPVG RVHRLLRRGN YAQRIGSGAP VYLTAVLEYL AAEILELAGN AARDNKKTRI IPRHLQLAI RNDDELNKLL GNVTIAQGGV LPNIHQNLLP KKSAKATKAS QEL

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Macromolecule #4: Histone H2B.1

MacromoleculeName: Histone H2B.1 / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c
Molecular weightTheoretical: 14.280362 KDa
Recombinant expressionOrganism: Escherichia phage EcSzw-2 (virus)
SequenceString:
MSAKAEKKPA SKAPAEKKPA AKKTSTSTDG KKRSKARKET YSSYIYKVLK QTHPDTGISQ KSMSILNSFV NDIFERIATE ASKLAAYNK KSTISAREIQ TAVRLILPGE LAKHAVSEGT RAVTKYSSST QA

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Macromolecule #7: Centromere DNA-binding protein complex CBF3 subunit B

MacromoleculeName: Centromere DNA-binding protein complex CBF3 subunit B / type: protein_or_peptide / ID: 7 / Number of copies: 1 / Enantiomer: LEVO
Source (natural)Organism: Saccharomyces cerevisiae (strain ATCC 204508 / S288c) (yeast)
Strain: ATCC 204508 / S288c
Molecular weightTheoretical: 5.605748 KDa
Recombinant expressionOrganism: Saccharomyces cerevisiae (brewer's yeast)
SequenceString:
MFNRTTQLKS KHPCSVCTRR KVKCDRMIPC GNCRKRGQDS ECMKSTKL

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Macromolecule #5: DNA (147-MER)

MacromoleculeName: DNA (147-MER) / type: dna / ID: 5 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Molecular weightTheoretical: 45.334012 KDa
SequenceString: (DA)(DT)(DC)(DG)(DA)(DG)(DA)(DA)(DT)(DC) (DC)(DC)(DG)(DG)(DT)(DG)(DC)(DC)(DG)(DA) (DG)(DG)(DC)(DC)(DG)(DC)(DT)(DC)(DA) (DA)(DT)(DT)(DG)(DG)(DT)(DC)(DG)(DT)(DA) (DG) (DA)(DC)(DA)(DG)(DC)(DT) ...String:
(DA)(DT)(DC)(DG)(DA)(DG)(DA)(DA)(DT)(DC) (DC)(DC)(DG)(DG)(DT)(DG)(DC)(DC)(DG)(DA) (DG)(DG)(DC)(DC)(DG)(DC)(DT)(DC)(DA) (DA)(DT)(DT)(DG)(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)(DT)(DA)(DT)(DT)(DA) (DG)(DT)(DG)(DT) (DA)(DT)(DT)(DT)(DG) (DA)(DT)(DT)(DT)(DC)(DC)(DG)(DA)(DA)(DA) (DG)(DT)(DT)(DA)(DA) (DA)(DA)(DA)(DA) (DG)(DA)(DA)(DA)(DT)(DA)(DG)(DT)(DA)(DA) (DG)(DA)(DA)(DA)(DT)(DC) (DA)(DT)(DC) (DC)(DG)(DA)(DT)

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Macromolecule #6: DNA (147-MER)

MacromoleculeName: DNA (147-MER) / type: dna / ID: 6 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: Saccharomyces cerevisiae (brewer's yeast)
Molecular weightTheoretical: 45.399992 KDa
SequenceString: (DA)(DT)(DC)(DG)(DG)(DA)(DT)(DG)(DA)(DT) (DT)(DT)(DC)(DT)(DT)(DA)(DC)(DT)(DA)(DT) (DT)(DT)(DC)(DT)(DT)(DT)(DT)(DT)(DT) (DA)(DA)(DC)(DT)(DT)(DT)(DC)(DG)(DG)(DA) (DA) (DA)(DT)(DC)(DA)(DA)(DA) ...String:
(DA)(DT)(DC)(DG)(DG)(DA)(DT)(DG)(DA)(DT) (DT)(DT)(DC)(DT)(DT)(DA)(DC)(DT)(DA)(DT) (DT)(DT)(DC)(DT)(DT)(DT)(DT)(DT)(DT) (DA)(DA)(DC)(DT)(DT)(DT)(DC)(DG)(DG)(DA) (DA) (DA)(DT)(DC)(DA)(DA)(DA)(DT)(DA) (DC)(DA)(DC)(DT)(DA)(DA)(DT)(DA)(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)(DC) (DA)(DA)(DT)(DT)(DG) (DA)(DG)(DC)(DG) (DG)(DC)(DC)(DT)(DC)(DG)(DG)(DC)(DA)(DC) (DC)(DG)(DG)(DG)(DA)(DT) (DT)(DC)(DT) (DC)(DG)(DA)(DT)

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Macromolecule #8: ZINC ION

MacromoleculeName: ZINC ION / type: ligand / ID: 8 / Number of copies: 2 / Formula: ZN
Molecular weightTheoretical: 65.409 Da

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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: 7.3
VitrificationCryogen name: ETHANE

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Electron microscopy

MicroscopeFEI TITAN KRIOS
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: SPOT SCAN / Imaging mode: BRIGHT FIELDBright-field microscopy
Image recordingFilm or detector model: GATAN K2 SUMMIT (4k x 4k) / Average electron dose: 71.0 e/Å2
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

Initial angle assignmentType: MAXIMUM LIKELIHOOD
Final angle assignmentType: MAXIMUM LIKELIHOOD
Final reconstructionResolution.type: BY AUTHOR / Resolution: 4.2 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 115666

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