2WOG

Intermediate and final states of human kinesin Eg5 in complex with S-trityl-L-cysteine

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.155 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history. 

Literature

An Allosteric Transition Trapped in an Intermediate State of a New Kinesin-Inhibitor Complex.

Kaan, H.Y.K., Ulaganathan, V., Hackney, D.D., Kozielski, F.

(2010) Biochem.J. 425: 55

  • DOI: 10.1042/BJ20091207

  • PubMed Abstract: 

    • Human kinesin Eg5 plays an essential role in mitosis by separating duplicated centrosomes and establishing the bipolar spindle. Eg5 is an interesting drug target for the development of cancer chemotherapy, with seven inhibitors already in clinical tr ...

    Human kinesin Eg5 plays an essential role in mitosis by separating duplicated centrosomes and establishing the bipolar spindle. Eg5 is an interesting drug target for the development of cancer chemotherapy, with seven inhibitors already in clinical trials. In the present paper, we report the crystal structure of the Eg5 motor domain complexed with a potent antimitotic inhibitor STLC (S-trityl-L-cysteine) to 2.0 A (1 A=0.1 nm) resolution. The Eg5-STLC complex crystallizes in space group P3(2) with three molecules per asymmetric unit. Two of the molecules reveal the final inhibitor-bound state of Eg5, whereby loop L5 has swung downwards to close the inhibitor-binding pocket, helix alpha4 has rotated by approx. 15 degrees and the neck-linker has adopted a docked conformation. The third molecule, however, revealed an unprecedented intermediate state, whereby local changes at the inhibitor-binding pocket have not propagated to structural changes at the switch II cluster and neck-linker. This provides structural evidence for the sequence of drug-induced conformational changes.

    Organizational Affiliation: 

    The Beatson Institute for Cancer Research, Switchback Road, Bearsden, Glasgow G61 1BD, Scotland, UK.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
KINESIN-LIKE PROTEIN KIF11
A, B, C
368Homo sapiensMutation(s): 0 
Gene Names: KIF11 (EG5, KNSL1, TRIP5)
Find proteins for P52732 (Homo sapiens)
Go to Gene View: KIF11
Go to UniProtKB:  P52732
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZZD
Query on ZZD
Download SDF File 
Download CCD File 
A, B, C
S-TRITYL-L-CYSTEINE
C22 H21 N O2 S
DLMYFMLKORXJPO-FQEVSTJZSA-N
 Ligand Interaction
ADP
Query on ADP
Download SDF File 
Download CCD File 
A, B, C
ADENOSINE-5'-DIPHOSPHATE
C10 H15 N5 O10 P2
XTWYTFMLZFPYCI-KQYNXXCUSA-N
 Ligand Interaction
MG
Query on MG
Download SDF File 
Download CCD File 
A, B, C
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
ZZDEC50: 1720 nM (100) BINDINGDB
ZZDKi: 50 - 143.8 nM (100) BINDINGDB
ZZDIC50: 140 - 1950 nM (100) BINDINGDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2 Å
  • R-Value Free: 0.218 
  • R-Value Work: 0.155 
  • Space Group: P 32
Unit Cell:
Length (Å)Angle (°)
a = 96.500α = 90.00
b = 96.500β = 90.00
c = 124.441γ = 120.00
Software Package:
Software NamePurpose
iMOSFLMdata reduction
REFMACrefinement
SCALAdata scaling
MOLREPphasing

Structure Validation

View Full Validation Report or Ramachandran Plots


View more in-depth experimental data

Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-08-04
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance