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- EMDB-44113: Haspin bound to nucleosome in position 1 -

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Basic information

Entry
Database: EMDB / ID: EMD-44113
TitleHaspin bound to nucleosome in position 1
Map dataunsharpened map
Sample
  • Complex: Haspin bound to nucleosome
    • Protein or peptide: Histone H3.2
    • Protein or peptide: Histone H4
    • Protein or peptide: Histone H2A
    • Protein or peptide: Histone H2B 1.1
    • Protein or peptide: Serine/threonine-protein kinase haspin
    • DNA: 601 DNA (185-MER)
    • DNA: 601 DNA (185-MER)
Keywordshaspin / nucleosome / histone / chromatin / H3T3ph / DNA BINDING PROTEIN / DNA BINDING PROTEIN-Transferase-DNA complex
Function / homology
Function and homology information


histone H3T3 kinase activity / protein localization to chromosome, centromeric region / mitotic sister chromatid cohesion / mitotic spindle assembly checkpoint signaling / spindle / structural constituent of chromatin / nucleosome / heterochromatin formation / mitotic cell cycle / nucleosome assembly ...histone H3T3 kinase activity / protein localization to chromosome, centromeric region / mitotic sister chromatid cohesion / mitotic spindle assembly checkpoint signaling / spindle / structural constituent of chromatin / nucleosome / heterochromatin formation / mitotic cell cycle / nucleosome assembly / chromosome / protein phosphorylation / non-specific serine/threonine protein kinase / protein kinase activity / intracellular signal transduction / protein heterodimerization activity / protein serine kinase activity / centrosome / DNA binding / nucleoplasm / ATP binding / nucleus / cytoplasm
Similarity search - Function
Serine/threonine-protein kinase haspin, C-terminal / Haspin like kinase domain / Domain of unknown function / : / Histone H2B signature. / Histone H2A conserved site / Histone H2A signature. / Histone H2B / Histone H2B / Histone H2A, C-terminal domain ...Serine/threonine-protein kinase haspin, C-terminal / Haspin like kinase domain / Domain of unknown function / : / Histone H2B signature. / Histone H2A conserved site / Histone H2A 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 / Serine/Threonine protein kinases, catalytic domain / Protein kinase, ATP binding site / Protein kinases ATP-binding region signature. / Protein kinase domain profile. / Protein kinase domain / Protein kinase-like domain superfamily
Similarity search - Domain/homology
Histone H2B 1.1 / Histone H4 / Histone H3.2 / Histone H2A / Serine/threonine-protein kinase haspin
Similarity search - Component
Biological speciesXenopus laevis (African clawed frog) / Homo sapiens (human) / synthetic construct (others)
Methodsingle particle reconstruction / cryo EM / Resolution: 3.01 Å
AuthorsHicks CW / Wolberger C
Funding support United States, 1 items
OrganizationGrant numberCountry
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)5R35GM130393 United States
CitationJournal: Nat Struct Mol Biol / Year: 2025
Title: Haspin kinase binds to a nucleosomal DNA supergroove.
Authors: Chad W Hicks / Colin R Gliech / Sanim Rahman / Xiangbin Zhang / Andrew S Eneim / Stacy J Vasquez / Andrew J Holland / Cynthia Wolberger /
Abstract: Phosphorylation of histone H3 threonine 3 (H3T3) by Haspin recruits the chromosomal passenger complex to the inner centromere and ensures proper cell cycle progression through mitosis. The mechanism ...Phosphorylation of histone H3 threonine 3 (H3T3) by Haspin recruits the chromosomal passenger complex to the inner centromere and ensures proper cell cycle progression through mitosis. The mechanism by which Haspin binds to nucleosomes to phosphorylate H3T3 is not known. Here we report cryogenic electron microscopy structures of the human Haspin kinase domain bound to a nucleosome. In contrast with previous structures of histone-modifying enzymes, Haspin solely contacts the nucleosomal DNA, inserting into a supergroove formed by apposing major grooves of two DNA gyres. This binding mode provides a plausible mechanism by which Haspin can bind to nucleosomes in a condensed chromatin environment to phosphorylate H3T3. We identify key basic residues in the Haspin kinase domain that are essential for phosphorylation of nucleosomal histone H3 and binding to mitotic chromatin. Our structural data provide notable insight into a histone-modifying enzyme that binds to nucleosomes solely through DNA contacts.
History
DepositionMar 16, 2024-
Header (metadata) releaseJan 22, 2025-
Map releaseJan 22, 2025-
UpdateAug 6, 2025-
Current statusAug 6, 2025Processing site: RCSB / Status: Released

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Structure visualization

Supplemental images

emd_44113.png

Downloads & links

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Map

FileDownload / File: emd_44113.map.gz / Format: CCP4 / Size: 244.1 MB / Type: IMAGE STORED AS FLOATING POINT NUMBER (4 BYTES)
Annotationunsharpened map
Projections & slices

Image control

Size
Brightness
Contrast
Others
AxesZ (Sec.)Y (Row.)X (Col.)
0.97 Å/pix.
x 400 pix.
= 388. Å		0.97 Å/pix.
x 400 pix.
= 388. Å		0.97 Å/pix.
x 400 pix.
= 388. Å

Surface

Projections

Slices (1/3)

Slices (1/2)

Slices (2/3)

Images are generated by Spider.

Voxel sizeX=Y=Z: 0.97 Å
Density

Histogram

Histogram (log scale)
Contour LevelBy AUTHOR: 0.1
Minimum - Maximum-0.3775785 - 0.95217085
Average (Standard dev.)-0.0000233394 (±0.016989274)
SymmetrySpace group: 1
Details

EMDB XML:

Map geometry
Axis orderXYZ
Origin000
Dimensions400400400
Spacing400400400
CellA=B=C: 388.0 Å
α=β=γ: 90.0 °

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Supplemental data

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Mask #1

Fileemd_44113_msk_1.map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Additional map: double-gaussian filtered map

Fileemd_44113_additional_1.map
Annotationdouble-gaussian filtered map
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half Map A

Fileemd_44113_half_map_1.map
AnnotationHalf Map A
Projections & Slices
AxesZYX

Projections

Slices (1/2)
Density Histograms

Histogram

Histogram (log scale)

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Half map: Half Map B

Fileemd_44113_half_map_2.map
AnnotationHalf Map B
Projections & Slices
AxesZYX

Projections

Slices (1/2)
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Histogram

Histogram (log scale)

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Sample components

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Entire : Haspin bound to nucleosome

EntireName: Haspin bound to nucleosome
Components
  • Complex: Haspin bound to nucleosome
    • Protein or peptide: Histone H3.2
    • Protein or peptide: Histone H4
    • Protein or peptide: Histone H2A
    • Protein or peptide: Histone H2B 1.1
    • Protein or peptide: Serine/threonine-protein kinase haspin
    • DNA: 601 DNA (185-MER)
    • DNA: 601 DNA (185-MER)

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Supramolecule #1: Haspin bound to nucleosome

SupramoleculeName: Haspin bound to nucleosome / type: complex / ID: 1 / Parent: 0 / Macromolecule list: all
Source (natural)Organism: Xenopus laevis (African clawed frog)

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Macromolecule #1: Histone H3.2

MacromoleculeName: Histone H3.2 / type: protein_or_peptide / ID: 1 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Xenopus laevis (African clawed frog)
Molecular weightTheoretical: 15.435126 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
MARTKQTARK STGGKAPRKQ LATKAARKSA PATGGVKKPH RYRPGTVALR EIRRYQKSTE LLIRKLPFQR LVREIAQDFK TDLRFQSSA VMALQEASEA YLVALFEDTN LCAIHAKRVT IMPKDIQLAR RIRGERA

UniProtKB: Histone H3.2

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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: Xenopus laevis (African clawed frog)
Molecular weightTheoretical: 11.394426 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
MSGRGKGGKG LGKGGAKRHR KVLRDNIQGI TKPAIRRLAR RGGVKRISGL IYEETRGVLK VFLENVIRDA VTYTEHAKRK TVTAMDVVY ALKRQGRTLY GFGG

UniProtKB: Histone H4

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Macromolecule #3: Histone H2A

MacromoleculeName: Histone H2A / type: protein_or_peptide / ID: 3 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Xenopus laevis (African clawed frog)
Molecular weightTheoretical: 14.109436 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
MSGRGKQGGK TRAKAKTRSS RAGLQFPVGR VHRLLRKGNY AERVGAGAPV YLAAVLEYLT AEILELAGNA ARDNKKTRII PRHLQLAVR NDEELNKLLG RVTIAQGGVL PNIQSVLLPK KTESSKSAKS K

UniProtKB: Histone H2A

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Macromolecule #4: Histone H2B 1.1

MacromoleculeName: Histone H2B 1.1 / type: protein_or_peptide / ID: 4 / Number of copies: 2 / Enantiomer: LEVO
Source (natural)Organism: Xenopus laevis (African clawed frog)
Molecular weightTheoretical: 13.655948 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString:
MAKSAPAPKK GSKKAVTKTQ KKDGKKRRKT RKESYAIYVY KVLKQVHPDT GISSKAMSIM NSFVNDVFER IAGEASRLAH YNKRSTITS REIQTAVRLL LPGELAKHAV SEGTKAVTKY TSAK

UniProtKB: Histone H2B 1.1

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Macromolecule #5: Serine/threonine-protein kinase haspin

MacromoleculeName: Serine/threonine-protein kinase haspin / type: protein_or_peptide / ID: 5 / Number of copies: 1 / Enantiomer: LEVO / EC number: non-specific serine/threonine protein kinase
Source (natural)Organism: Homo sapiens (human)
Molecular weightTheoretical: 40.711484 KDa
Recombinant expressionOrganism: Escherichia coli (E. coli)
SequenceString: MHHHHHHSSG VDLGTENLYF QSMGECSQKG PVPFSHCLPT EKLQRCEKIG EGVFGEVFQT IADHTPVAIK IIAIEGPDLV NGSHQKTFE EILPEIIISK ELSLLSGEVC NRTEGFIGLN SVHCVQGSYP PLLLKAWDHY NSTKGSANDR PDFFKDDQLF I VLEFEFGG ...String:
MHHHHHHSSG VDLGTENLYF QSMGECSQKG PVPFSHCLPT EKLQRCEKIG EGVFGEVFQT IADHTPVAIK IIAIEGPDLV NGSHQKTFE EILPEIIISK ELSLLSGEVC NRTEGFIGLN SVHCVQGSYP PLLLKAWDHY NSTKGSANDR PDFFKDDQLF I VLEFEFGG IDLEQMRTKL SSLATAKSIL HQLTASLAVA EASLRFEHRD LHWGNVLLKK TSLKKLHYTL NGKSSTIPSC GL QVSIIDY TLSRLERDGI VVFCDVSMDE DLFTGDGDYQ FDIYRLMKKE NNNRWGEYHP YSNVLWLHYL TDKMLKQMTF KTK CNTPAM KQIKRKIQEF HRTMLNFSSA TDLLCQHSLF K

UniProtKB: Serine/threonine-protein kinase haspin

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Macromolecule #6: 601 DNA (185-MER)

MacromoleculeName: 601 DNA (185-MER) / type: dna / ID: 6 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 56.79616 KDa
SequenceString: (DG)(DA)(DC)(DC)(DC)(DT)(DA)(DT)(DA)(DC) (DG)(DC)(DG)(DG)(DC)(DC)(DG)(DC)(DC)(DC) (DA)(DT)(DC)(DA)(DG)(DA)(DA)(DT)(DC) (DC)(DC)(DG)(DG)(DT)(DG)(DC)(DC)(DG)(DA) (DG) (DG)(DC)(DC)(DG)(DC)(DT) ...String:
(DG)(DA)(DC)(DC)(DC)(DT)(DA)(DT)(DA)(DC) (DG)(DC)(DG)(DG)(DC)(DC)(DG)(DC)(DC)(DC) (DA)(DT)(DC)(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)(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) (DA)(DT)(DA)(DT)(DA)(DC)(DA) (DT)(DC) (DG)(DA)(DT)(DT)(DG)(DC)(DC)(DG)(DG)(DT) (DC)(DG)(DC)(DG)(DA)(DA)(DC)(DA) (DG) (DC)(DG)(DA)(DC)

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Macromolecule #7: 601 DNA (185-MER)

MacromoleculeName: 601 DNA (185-MER) / type: dna / ID: 7 / Number of copies: 1 / Classification: DNA
Source (natural)Organism: synthetic construct (others)
Molecular weightTheoretical: 57.440531 KDa
SequenceString: (DG)(DT)(DC)(DG)(DC)(DT)(DG)(DT)(DT)(DC) (DG)(DC)(DG)(DA)(DC)(DC)(DG)(DG)(DC)(DA) (DA)(DT)(DC)(DG)(DA)(DT)(DG)(DT)(DA) (DT)(DA)(DT)(DA)(DT)(DC)(DT)(DG)(DA)(DC) (DA) (DC)(DG)(DT)(DG)(DC)(DC) ...String:
(DG)(DT)(DC)(DG)(DC)(DT)(DG)(DT)(DT)(DC) (DG)(DC)(DG)(DA)(DC)(DC)(DG)(DG)(DC)(DA) (DA)(DT)(DC)(DG)(DA)(DT)(DG)(DT)(DA) (DT)(DA)(DT)(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)(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) (DG)(DA)(DT)(DG)(DG)(DG)(DC)(DG)(DG)(DC) (DC)(DG)(DC)(DG)(DT)(DA)(DT)(DA) (DG) (DG)(DG)(DT)(DC)

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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: 7.5
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: 40.0 e/Å2
Electron beamAcceleration voltage: 300 kV / Electron source: FIELD EMISSION GUN
Electron opticsIllumination mode: FLOOD BEAM / Imaging mode: BRIGHT FIELD / Nominal defocus max: 2.5 µm / Nominal defocus min: 0.5 µm
Experimental equipment
Model: Titan Krios / Image courtesy: FEI Company

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Image processing

CTF correctionType: PHASE FLIPPING AND AMPLITUDE CORRECTION
Startup modelType of model: NONE
Final reconstructionResolution.type: BY AUTHOR / Resolution: 3.01 Å / Resolution method: FSC 0.143 CUT-OFF / Number images used: 152199
Initial angle assignmentType: RANDOM ASSIGNMENT
Final angle assignmentType: MAXIMUM LIKELIHOOD
FSC plot (resolution estimation)

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