4OUC

Structure of human haspin in complex with histone H3 substrate


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.164 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Modulation of the chromatin phosphoproteome by the haspin protein kinase.

Maiolica, A.de Medina-Redondo, M.Schoof, E.M.Chaikuad, A.Villa, F.Gatti, M.Jeganathan, S.Lou, H.J.Novy, K.Hauri, S.Toprak, U.H.Herzog, F.Meraldi, P.Penengo, L.Turk, B.E.Knapp, S.Linding, R.Aebersold, R.

(2014) Mol Cell Proteomics 13: 1724-1740

  • DOI: 10.1074/mcp.M113.034819

  • PubMed Abstract: 
  • Recent discoveries have highlighted the importance of Haspin kinase activity for the correct positioning of the kinase Aurora B at the centromere. Haspin phosphorylates Thr(3) of the histone H3 (H3), which provides a signal for Aurora B to localize t ...

    Recent discoveries have highlighted the importance of Haspin kinase activity for the correct positioning of the kinase Aurora B at the centromere. Haspin phosphorylates Thr(3) of the histone H3 (H3), which provides a signal for Aurora B to localize to the centromere of mitotic chromosomes. To date, histone H3 is the only confirmed Haspin substrate. We used a combination of biochemical, pharmacological, and mass spectrometric approaches to study the consequences of Haspin inhibition in mitotic cells. We quantified 3964 phosphorylation sites on chromatin-associated proteins and identified a Haspin protein-protein interaction network. We determined the Haspin consensus motif and the co-crystal structure of the kinase with the histone H3 tail. The structure revealed a unique bent substrate binding mode positioning the histone H3 residues Arg(2) and Lys(4) adjacent to the Haspin phosphorylated threonine into acidic binding pockets. This unique conformation of the kinase-substrate complex explains the reported modulation of Haspin activity by methylation of Lys(4) of the histone H3. In addition, the identification of the structural basis of substrate recognition and the amino acid sequence preferences of Haspin aided the identification of novel candidate Haspin substrates. In particular, we validated the phosphorylation of Ser(137) of the histone variant macroH2A as a target of Haspin kinase activity. MacroH2A Ser(137) resides in a basic stretch of about 40 amino acids that is required to stabilize extranucleosomal DNA, suggesting that phosphorylation of Ser(137) might regulate the interactions of macroH2A and DNA. Overall, our data suggest that Haspin activity affects the phosphorylation state of proteins involved in gene expression regulation and splicing.


    Organizational Affiliation

    From the ‡Department of Biology, Institute of Molecular Systems Biology, ETH Zurich, Zurich, Switzerland;




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Serine/threonine-protein kinase haspin
A
357Homo sapiensMutation(s): 0 
Gene Names: HASPIN (GSG2)
EC: 2.7.11.1
Find proteins for Q8TF76 (Homo sapiens)
Go to Gene View: HASPIN
Go to UniProtKB:  Q8TF76
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Histone H3.2
B
12Homo sapiensMutation(s): 0 
Gene Names: HIST2H3A, HIST2H3C, HIST2H3D (H3F2, H3FM)
Find proteins for Q71DI3 (Homo sapiens)
Go to Gene View: HIST2H3A HIST2H3C HIST2H3D
Go to UniProtKB:  Q71DI3
Small Molecules
Ligands 4 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
NA
Query on NA

Download SDF File 
Download CCD File 
A
SODIUM ION
Na
FKNQFGJONOIPTF-UHFFFAOYSA-N
 Ligand Interaction
5ID
Query on 5ID

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Download CCD File 
A
(2R,3R,4S,5R)-2-(4-AMINO-5-IODO-7H-PYRROLO[2,3-D]PYRIMIDIN-7-YL)-5-(HYDROXYMETHYL)TETRAHYDROFURAN-3,4-DIOL
5-IODOTUBERCIDIN
C11 H13 I N4 O4
WHSIXKUPQCKWBY-IOSLPCCCSA-N
 Ligand Interaction
IOD
Query on IOD

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Download CCD File 
A
IODIDE ION
I
XMBWDFGMSWQBCA-UHFFFAOYSA-M
 Ligand Interaction
EDO
Query on EDO

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A
1,2-ETHANEDIOL
ETHYLENE GLYCOL
C2 H6 O2
LYCAIKOWRPUZTN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.9 Å
  • R-Value Free: 0.211 
  • R-Value Work: 0.164 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 50.540α = 90.00
b = 79.130β = 90.00
c = 100.760γ = 90.00
Software Package:
Software NamePurpose
PHASERphasing
MOSFLMdata reduction
SCALAdata scaling
REFMACrefinement
CrystalCleardata collection

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2014-04-16
    Type: Initial release
  • Version 1.1: 2014-08-13
    Type: Database references