2XO8

Crystal Structure of Myosin-2 in Complex with Tribromodichloropseudilin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.202 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Inhibition of Myosin ATPase Activity by Halogenated Pseudilins: A Structure-Activity Study.

Preller, M.Chinthalapudi, K.Martin, R.Knolker, H.Manstein, D.J.

(2011) J.Med.Chem. 54: 3675

  • DOI: 10.1021/jm200259f

  • PubMed Abstract: 
  • Myosin activity is crucial for many biological functions. Strong links have been established between changes in the activity of specific myosin isoforms and diseases such as cancer, cardiovascular failure, and disorders of sensory organs and the cent ...

    Myosin activity is crucial for many biological functions. Strong links have been established between changes in the activity of specific myosin isoforms and diseases such as cancer, cardiovascular failure, and disorders of sensory organs and the central nervous system. The modulation of specific myosin isoforms therefore holds a strong therapeutic potential. In recent work, we identified members of the marine alkaloid family of pseudilins as potent inhibitors of myosin-dependent processes. Here, we report the crystal structure of the complex between the Dictyostelium myosin 2 motor domain and 2,4-dichloro-6-(3,4,5-tribromo-1H-pyrrole-2-yl)phenol (3). Detailed comparison with previously solved structures of the myosin 2 complex with bound pentabromopseudilin (2a) or pentachloropseudilin (4a) provides insights into the molecular basis of the allosteric communication between the catalytic and the allosteric sites. Moreover, we describe the inhibitory potency for a congeneric series of halogenated pseudilins. Insight into their mode of action is gained by applying a combination of experimental and computational approaches.


    Organizational Affiliation

    Institute for Biophysical Chemistry, Hannover Medical School, 30625 Hannover,




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MYOSIN-2 HEAVY CHAIN
A
776Dictyostelium discoideumGene Names: mhcA
Find proteins for P08799 (Dictyostelium discoideum)
Go to UniProtKB:  P08799
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
MG
Query on MG

Download SDF File 
Download CCD File 
A
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
AD9
Query on AD9

Download SDF File 
Download CCD File 
A
ADP METAVANADATE
C10 H16 N5 O13 P2 V
XLVFTLJPBLXCED-KWIZKVQNSA-K
 Ligand Interaction
H70
Query on H70

Download SDF File 
Download CCD File 
A
2,4-DICHLORO-6-(3,4,5-TRIBROMO-1H-PYRROL-2-YL)PHENOL
TRIBROMODICHLOROPSEUDILIN
C10 H4 Br3 Cl2 N O
KMUJMUQZYHMNDR-UHFFFAOYSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
H70IC50: 47200 nM PDBBIND
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.254 
  • R-Value Work: 0.202 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 88.340α = 90.00
b = 146.383β = 90.00
c = 152.798γ = 90.00
Software Package:
Software NamePurpose
XDSdata scaling
CNSrefinement
XDSdata reduction
CNSphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2011-05-25
    Type: Initial release
  • Version 1.1: 2013-01-30
    Type: Database references, Version format compliance