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- PDB-9oh2: Cryo-EM analysis of human H2A.Z on methylated 601L DNA -

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Entry
Database: PDB / ID: 9oh2
TitleCryo-EM analysis of human H2A.Z on methylated 601L DNA
Components
  • (601L DNA (137- ...) x 2
  • Histone H2A.Z
  • Histone H2B type 1-J
  • Histone H3.2
  • Histone H4
KeywordsDNA BINDING PROTEIN / Nucleosome / H2A.Z / DNA methylation
Function / homology
Function and homology information


negative regulation of tumor necrosis factor-mediated signaling pathway / RNA polymerase II core promoter sequence-specific DNA binding / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Chromatin modifying enzymes / heterochromatin / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / nucleosomal DNA binding / Packaging Of Telomere Ends ...negative regulation of tumor necrosis factor-mediated signaling pathway / RNA polymerase II core promoter sequence-specific DNA binding / negative regulation of megakaryocyte differentiation / protein localization to CENP-A containing chromatin / Chromatin modifying enzymes / heterochromatin / Replacement of protamines by nucleosomes in the male pronucleus / CENP-A containing nucleosome / nucleosomal DNA binding / Packaging Of Telomere Ends / Recognition and association of DNA glycosylase with site containing an affected purine / Cleavage of the damaged purine / Deposition of new CENPA-containing nucleosomes at the centromere / telomere organization / Interleukin-7 signaling / Recognition and association of DNA glycosylase with site containing an affected pyrimidine / Cleavage of the damaged pyrimidine / Regulation of PD-L1(CD274) transcription / RNA Polymerase I Promoter Opening / Inhibition of DNA recombination at telomere / Assembly of the ORC complex at the origin of replication / Meiotic synapsis / SUMOylation of chromatin organization proteins / Regulation of endogenous retroelements by the Human Silencing Hub (HUSH) complex / DNA methylation / Condensation of Prophase Chromosomes / Chromatin modifications during the maternal to zygotic transition (MZT) / HCMV Late Events / SIRT1 negatively regulates rRNA expression / ERCC6 (CSB) and EHMT2 (G9a) positively regulate rRNA expression / PRC2 methylates histones and DNA / cellular response to estradiol stimulus / Regulation of endogenous retroelements by KRAB-ZFP proteins / Defective pyroptosis / HDACs deacetylate histones / Regulation of endogenous retroelements by Piwi-interacting RNAs (piRNAs) / innate immune response in mucosa / Transcriptional regulation by small RNAs / RNA Polymerase I Promoter Escape / Nonhomologous End-Joining (NHEJ) / lipopolysaccharide binding / euchromatin / HDMs demethylate histones / Formation of the beta-catenin:TCF transactivating complex / Activated PKN1 stimulates transcription of AR (androgen receptor) regulated genes KLK2 and KLK3 / chromatin DNA binding / RUNX1 regulates genes involved in megakaryocyte differentiation and platelet function / Negative Regulation of CDH1 Gene Transcription / NoRC negatively regulates rRNA expression / G2/M DNA damage checkpoint / PKMTs methylate histone lysines / B-WICH complex positively regulates rRNA expression / DNA Damage/Telomere Stress Induced Senescence / Dengue Virus-Host Interactions / Meiotic recombination / Pre-NOTCH Transcription and Translation / Activation of anterior HOX genes in hindbrain development during early embryogenesis / Transcriptional regulation of granulopoiesis / RMTs methylate histone arginines / HCMV Early Events / structural constituent of chromatin / nucleosome / nucleosome assembly / antimicrobial humoral immune response mediated by antimicrobial peptide / HATs acetylate histones / E3 ubiquitin ligases ubiquitinate target proteins / Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks / Factors involved in megakaryocyte development and platelet production / MLL4 and MLL3 complexes regulate expression of PPARG target genes in adipogenesis and hepatic steatosis / antibacterial humoral response / RUNX1 regulates transcription of genes involved in differentiation of HSCs / chromatin organization / heterochromatin formation / Processing of DNA double-strand break ends / Senescence-Associated Secretory Phenotype (SASP) / Oxidative Stress Induced Senescence / Estrogen-dependent gene expression / killing of cells of another organism / defense response to Gram-negative bacterium / chromosome, telomeric region / defense response to Gram-positive bacterium / Ub-specific processing proteases / RNA polymerase II cis-regulatory region sequence-specific DNA binding / protein heterodimerization activity / Amyloid fiber formation / positive regulation of transcription by RNA polymerase II / protein-containing complex / DNA binding / : / RNA binding / extracellular exosome / extracellular region / nucleoplasm / membrane / nucleus / cytosol
Similarity search - Function
: / Histone H2A conserved site / Histone H2A signature. / Histone H2B signature. / Histone H2B / Histone H2B / Histone H2A, C-terminal domain / C-terminus of histone H2A / Histone 2A / Histone H2A ...: / Histone H2A conserved site / Histone H2A signature. / Histone H2B signature. / Histone H2B / Histone H2B / Histone H2A, C-terminal domain / C-terminus of histone H2A / Histone 2A / Histone H2A / TATA box binding protein associated factor / TATA box binding protein associated factor (TAF), histone-like fold domain / 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 domain / Histone-fold
Similarity search - Domain/homology
DNA / DNA (> 10) / DNA (> 100) / Histone H2B type 1-J / Histone H2A.Z / Histone H4 / Histone H3.2
Similarity search - Component
Biological speciesHomo sapiens (human)
synthetic construct (others)
MethodELECTRON MICROSCOPY / single particle reconstruction / cryo EM / Resolution: 3.14 Å
AuthorsShih, R.M. / Arimura, Y.
Funding support United States, 1items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)R35GM132111 United States
Citation
Journal: Elife / Year: 2026
Title: Impacts of DNA methylation on H2A.Z deposition and nucleosome stability.
Authors: Rochelle M Shih / Yasuhiro Arimura / Hide A Konishi / Hironori Funabiki /
Abstract: The histone variant H2A.Z and DNA methylation are enriched at mutually exclusive genomic segments, though its mechanistic bases remain unclear. Here, we examine DNA methylation's influence on the ...The histone variant H2A.Z and DNA methylation are enriched at mutually exclusive genomic segments, though its mechanistic bases remain unclear. Here, we examine DNA methylation's influence on the intrinsic stability of the H2A.Z nucleosome and chaperone-mediated H2A.Z deposition. Cryo-EM and endonuclease analyses suggest that DNA methylation subtly increases the openness and accessibility of the H2A.Z nucleosome on satellite II-derived DNA sequences. In transcriptionally silent egg extracts, H2A.Z preferentially associates with unmethylated DNA though a substantial proportion of H2A.Z is recruited to methylated DNA. Preferential H2A.Z deposition to unmethylated DNA depends on the SRCAP complex, whose DNA binding is suppressed by methylation, while an SRCAP-independent and DNA methylation-insensitive mechanism for H2A.Z deposition also exists. Altogether, we propose that SRCAP drives the biased association of H2A.Z to unmethylated DNA, while additional mechanisms, potentially taking advantage of the subtle DNA methylation-induced physical effects, further assist the exclusion of H2A.Z from methylated DNA.
#1: Journal: Elife / Year: 2026
Title: Impacts of DNA methylation on H2A.Z deposition and nucleosome stability
Authors: Shih, R.M. / Arimura, Y. / Konishi, H.A. / Funabiki, H.
History
DepositionMay 2, 2025Deposition site: RCSB / Processing site: RCSB
Revision 1.0Nov 5, 2025Provider: repository / Type: Initial release
Revision 1.0Nov 5, 2025Data content type: EM metadata / Data content type: EM metadata / Provider: repository / Type: Initial release
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Revision 1.1Jul 8, 2026Group: Data collection / Database references / Category: citation / citation_author / em_admin
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Revision 1.1Jul 8, 2026Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Database references / Experimental summary / Data content type: EM metadata / EM metadata / EM metadata / Category: citation / citation_author / em_admin
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Revision 1.2Jul 22, 2026Group: Data collection / Database references / Category: citation / citation_author / em_admin / Item: _em_admin.last_update
Revision 1.2Jul 22, 2026Data content type: EM metadata / Data content type: EM metadata / EM metadata / Group: Database references / Experimental summary / Data content type: EM metadata / EM metadata / EM metadata / Category: citation / citation_author / em_admin / Data content type: EM metadata / Item: _em_admin.last_update

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Histone H3.2
B: Histone H4
C: Histone H2A.Z
D: Histone H2B type 1-J
E: Histone H3.2
F: Histone H4
G: Histone H2A.Z
H: Histone H2B type 1-J
I: 601L DNA (137-MER)
J: 601L DNA (137-MER)


Theoretical massNumber of molelcules
Total (without water)198,36610
Polymers198,36610
Non-polymers00
Water00
1


  • Idetical with deposited unit
  • defined by author&software
  • Evidence: electron microscopy, not applicable
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1

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Components

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Protein , 4 types, 8 molecules AEBFCGDH

#1: Protein Histone H3.2 / H3-clustered histone 13 / H3-clustered histone 14 / H3-clustered histone 15 / Histone H3/m / Histone H3/o


Mass: 15421.101 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human)
Gene: H3C15, HIST2H3A, H3C14, H3F2, H3FM, HIST2H3C, H3C13, HIST2H3D
Production host: Escherichia coli BL21 (bacteria) / References: UniProt: Q71DI3
#2: Protein Histone H4


Mass: 11394.426 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human)
Gene: HIST1H4A, H4/A, H4FA, HIST1H4B, H4/I, H4FI, HIST1H4C, H4/G, H4FG, HIST1H4D, H4/B, H4FB, HIST1H4E, H4/J, H4FJ, HIST1H4F, H4/C, H4FC, HIST1H4H, H4/H, H4FH, HIST1H4I, H4/M, H4FM, HIST1H4J, H4/E, ...Gene: HIST1H4A, H4/A, H4FA, HIST1H4B, H4/I, H4FI, HIST1H4C, H4/G, H4FG, HIST1H4D, H4/B, H4FB, HIST1H4E, H4/J, H4FJ, HIST1H4F, H4/C, H4FC, HIST1H4H, H4/H, H4FH, HIST1H4I, H4/M, H4FM, HIST1H4J, H4/E, H4FE, HIST1H4K, H4/D, H4FD, HIST1H4L, H4/K, H4FK, HIST2H4A, H4/N, H4F2, H4FN, HIST2H4, HIST2H4B, H4/O, H4FO, HIST4H4
Production host: Escherichia coli BL21 (bacteria) / References: UniProt: P62805
#3: Protein Histone H2A.Z / H2A/z


Mass: 13450.601 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: H2AZ1, H2AFZ, H2AZ / Production host: Escherichia coli BL21 (bacteria) / References: UniProt: P0C0S5
#4: Protein Histone H2B type 1-J / Histone H2B.1 / Histone H2B.r / H2B/r


Mass: 13935.239 Da / Num. of mol.: 2
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human) / Gene: HIST1H2BJ, H2BFR / Production host: Escherichia coli BL21 (bacteria) / References: UniProt: P06899

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601L DNA (137- ... , 2 types, 2 molecules IJ

#5: DNA chain 601L DNA (137-MER)


Mass: 44985.961 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli) / Strain (production host): DH5alpha
#6: DNA chain 601L DNA (137-MER)


Mass: 44976.945 Da / Num. of mol.: 1
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) synthetic construct (others) / Production host: Escherichia coli (E. coli) / Strain (production host): DH5alpha

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Details

Has ligand of interestN
Has protein modificationN

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Experimental details

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Experiment

ExperimentMethod: ELECTRON MICROSCOPY
EM experimentAggregation state: PARTICLE / 3D reconstruction method: single particle reconstruction

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Sample preparation

ComponentName: Human H2A.Z nucleosome on methylated Sat2R-P DNA / Type: COMPLEX / Entity ID: all / Source: RECOMBINANT
Molecular weightValue: 0.2 MDa / Experimental value: NO
Source (natural)Organism: Homo sapiens (human)
Source (recombinant)Organism: E coli (bacteria)
Buffer solutionpH: 7.5
SpecimenEmbedding applied: NO / Shadowing applied: NO / Staining applied: NO / Vitrification applied: YES
Specimen supportGrid material: GOLD / Grid mesh size: 400 divisions/in. / Grid type: Quantifoil R1.2/1.3
VitrificationInstrument: FEI VITROBOT MARK IV / Cryogen name: ETHANE / Humidity: 100 % / Chamber temperature: 298 K

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Electron microscopy imaging

Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company
MicroscopyModel: TFS KRIOS
Electron gunElectron source: FIELD EMISSION GUN / Accelerating voltage: 300 kV / Illumination mode: FLOOD BEAM
Electron lensMode: BRIGHT FIELD / Nominal defocus max: 2500 nm / Nominal defocus min: 1200 nm
Image recordingElectron dose: 50 e/Å2 / Film or detector model: GATAN K3 (6k x 4k)

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Processing

EM softwareName: PHENIX / Version: 1.21_5207 / Category: model refinement
CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Particle selectionNum. of particles selected: 1542751
3D reconstructionResolution: 3.14 Å / Resolution method: FSC 0.143 CUT-OFF / Num. of particles: 179360 / Symmetry type: POINT
Atomic model buildingProtocol: RIGID BODY FIT
RefinementCross valid method: NONE
Stereochemistry target values: GeoStd + Monomer Library + CDL v1.2
Displacement parametersBiso mean: 45.45 Å2
Refine LS restraints
Refine-IDTypeDev idealNumber
ELECTRON MICROSCOPYf_bond_d0.003912241
ELECTRON MICROSCOPYf_angle_d0.644217722
ELECTRON MICROSCOPYf_chiral_restr0.03751980
ELECTRON MICROSCOPYf_plane_restr0.00441279
ELECTRON MICROSCOPYf_dihedral_angle_d29.91773815

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