4B94

Crystal structure of human Mps1 TPR domain


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.186 
  • R-Value Work: 0.170 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

A Tpr Domain-Containing N-Terminal Module of Mps1 is Required for its Kinetochore Localization by Aurora B.

Nijenhuis, W.von Castelmur, E.Littler, D.De Marco, V.Tromer, E.Vleugel, M.van Osch, M.H.Snel, B.Perrakis, A.Kops, G.J.

(2013) J.Cell Biol. 201: 217

  • DOI: 10.1083/jcb.201210033

  • PubMed Abstract: 
  • The mitotic checkpoint ensures correct chromosome segregation by delaying cell cycle progression until all kinetochores have attached to the mitotic spindle. In this paper, we show that the mitotic checkpoint kinase MPS1 contains an N-terminal locali ...

    The mitotic checkpoint ensures correct chromosome segregation by delaying cell cycle progression until all kinetochores have attached to the mitotic spindle. In this paper, we show that the mitotic checkpoint kinase MPS1 contains an N-terminal localization module, organized in an N-terminal extension (NTE) and a tetratricopeptide repeat (TPR) domain, for which we have determined the crystal structure. Although the module was necessary for kinetochore localization of MPS1 and essential for the mitotic checkpoint, the predominant kinetochore binding activity resided within the NTE. MPS1 localization further required HEC1 and Aurora B activity. We show that MPS1 localization to kinetochores depended on the calponin homology domain of HEC1 but not on Aurora B-dependent phosphorylation of the HEC1 tail. Rather, the TPR domain was the critical mediator of Aurora B control over MPS1 localization, as its deletion rendered MPS1 localization insensitive to Aurora B inhibition. These data are consistent with a model in which Aurora B activity relieves a TPR-dependent inhibitory constraint on MPS1 localization.


    Organizational Affiliation

    Department of Molecular Cancer Research, University Medical Center Utrecht, 3584 CG Utrecht, Netherlands.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
DUAL SPECIFICITY PROTEIN KINASE TTK
A, B, C, D
181Homo sapiensGene Names: TTK (MPS1, MPS1L1)
EC: 2.7.12.1
Find proteins for P33981 (Homo sapiens)
Go to Gene View: TTK
Go to UniProtKB:  P33981
Small Molecules
Ligands 5 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MLI
Query on MLI

Download SDF File 
Download CCD File 
B
MALONATE ION
C3 H2 O4
OFOBLEOULBTSOW-UHFFFAOYSA-L
 Ligand Interaction
GOL
Query on GOL

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Download CCD File 
A, B, C, D
GLYCEROL
GLYCERIN; PROPANE-1,2,3-TRIOL
C3 H8 O3
PEDCQBHIVMGVHV-UHFFFAOYSA-N
 Ligand Interaction
PG4
Query on PG4

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Download CCD File 
A, D
TETRAETHYLENE GLYCOL
C8 H18 O5
UWHCKJMYHZGTIT-UHFFFAOYSA-N
 Ligand Interaction
PGE
Query on PGE

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Download CCD File 
B, C
TRIETHYLENE GLYCOL
C6 H14 O4
ZIBGPFATKBEMQZ-UHFFFAOYSA-N
 Ligand Interaction
PEG
Query on PEG

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Download CCD File 
C
DI(HYDROXYETHYL)ETHER
C4 H10 O3
MTHSVFCYNBDYFN-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.2 Å
  • R-Value Free: 0.186 
  • R-Value Work: 0.170 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 79.920α = 90.00
b = 80.137β = 90.00
c = 142.212γ = 90.00
Software Package:
Software NamePurpose
autoSHARPphasing
XDSdata reduction
SCALAdata scaling
BUSTERrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-04-24
    Type: Initial release
  • Version 1.1: 2013-05-01
    Type: Database references
  • Version 1.2: 2017-12-13
    Type: Database references