3GGF

Crystal structure of human Serine/threonine-protein kinase MST4 in complex with an quinazolin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.222 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.3 of the entry. See complete history


Literature

Structural comparison of human mammalian ste20-like kinases

Record, C.J.Chaikuad, A.Rellos, P.Das, S.Pike, A.C.Fedorov, O.Marsden, B.D.Knapp, S.Lee, W.H.

(2010) PLoS One 5: e11905-e11905

  • DOI: https://doi.org/10.1371/journal.pone.0011905
  • Primary Citation of Related Structures:  
    3GGF

  • PubMed Abstract: 

    The serine/threonine mammalian Ste-20 like kinases (MSTs) are key regulators of apoptosis, cellular proliferation as well as polarization. Deregulation of MSTs has been associated with disease progression in prostate and colorectal cancer. The four human MSTs are regulated differently by C-terminal regions flanking the catalytic domains. We have determined the crystal structure of kinase domain of MST4 in complex with an ATP-mimetic inhibitor. This is the first structure of an inactive conformation of a member of the MST kinase family. Comparison with active structures of MST3 and MST1 revealed a dimeric association of MST4 suggesting an activation loop exchanged mechanism of MST4 auto-activation. Together with a homology model of MST2 we provide a comparative analysis of the kinase domains for all four members of the human MST family. The comparative analysis identified new structural features in the MST ATP binding pocket and has also defined the mechanism for autophosphorylation. Both structural features may be further explored for inhibitors design. This article can also be viewed as an enhanced version in which the text of the article is integrated with interactive 3D representations and animated transitions. Please note that a web plugin is required to access this enhanced functionality. Instructions for the installation and use of the web plugin are available in Text S1.


  • Organizational Affiliation

    Structural Genomics Consortium, University of Oxford, Oxford, United Kingdom.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Serine/threonine-protein kinase MST4
A, B
301Homo sapiensMutation(s): 0 
Gene Names: MST4MASK
EC: 2.7.11.1
UniProt & NIH Common Fund Data Resources
Find proteins for Q9P289 (Homo sapiens)
Explore Q9P289 
Go to UniProtKB:  Q9P289
PHAROS:  Q9P289
GTEx:  ENSG00000134602 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ9P289
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
GVD
Query on GVD

Download Ideal Coordinates CCD File 
G [auth A],
K [auth B]
[4-({4-[(5-CYCLOPROPYL-1H-PYRAZOL-3-YL)AMINO]QUINAZOLIN-2-YL}IMINO)CYCLOHEXA-2,5-DIEN-1-YL]ACETONITRILE
C22 H19 N7
AWMNWCNUTIFHRJ-SZLGDNHQSA-N
CD
Query on CD

Download Ideal Coordinates CCD File 
C [auth A]
D [auth A]
E [auth A]
F [auth A]
H [auth B]
C [auth A],
D [auth A],
E [auth A],
F [auth A],
H [auth B],
I [auth B],
J [auth B]
CADMIUM ION
Cd
WLZRMCYVCSSEQC-UHFFFAOYSA-N
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.35 Å
  • R-Value Free: 0.277 
  • R-Value Work: 0.219 
  • R-Value Observed: 0.222 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 65.92α = 90
b = 91.25β = 90
c = 108.97γ = 90
Software Package:
Software NamePurpose
PHASERphasing
REFMACrefinement
MOSFLMdata reduction
SCALAdata scaling

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Revision History  (Full details and data files)

  • Version 1.0: 2009-03-24
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance
  • Version 1.2: 2018-01-31
    Changes: Structure summary
  • Version 1.3: 2023-09-06
    Changes: Data collection, Database references, Derived calculations, Refinement description