2JHR

Crystal structure of myosin-2 motor domain in complex with ADP- metavanadate and pentabromopseudilin


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.217 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

The Mechanism of Pentabromopseudilin Inhibition of Myosin Motor Activity.

Fedorov, R.Bohl, M.Tsiavaliaris, G.Hartmann, F.K.Taft, M.H.Baruch, P.Brenner, B.Martin, R.Knolker, H.Gutzeit, H.O.Manstein, D.J.

(2009) Nat.Struct.Mol.Biol. 16: 80

  • DOI: 10.1038/nsmb.1542
  • Primary Citation of Related Structures:  
  • Also Cited By: 2X9H

  • PubMed Abstract: 
  • We have identified pentabromopseudilin (PBP) as a potent inhibitor of myosin-dependent processes such as isometric tension development and unloaded shortening velocity. PBP-induced reductions in the rate constants for ATP binding, ATP hydrolysis and ...

    We have identified pentabromopseudilin (PBP) as a potent inhibitor of myosin-dependent processes such as isometric tension development and unloaded shortening velocity. PBP-induced reductions in the rate constants for ATP binding, ATP hydrolysis and ADP dissociation extend the time required per myosin ATPase cycle in the absence and presence of actin. Additionally, coupling between the actin and nucleotide binding sites is reduced in the presence of the inhibitor. The selectivity of PBP differs from that observed with other myosin inhibitors. To elucidate the binding mode of PBP, we crystallized the Dictyostelium myosin-2 motor domain in the presence of Mg(2+)-ADP-meta-vanadate and PBP. The electron density for PBP is unambiguous and shows PBP to bind at a previously unknown allosteric site near the tip of the 50-kDa domain, at a distance of 16 A from the nucleotide binding site and 7.5 A away from the blebbistatin binding pocket.


    Organizational Affiliation

    Research Centre for Structure Analysis, OE8830, Hannover Medical School, 30623 Hannover, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
MYOSIN-2 HEAVY CHAIN
A
788Dictyostelium discoideumMutation(s): 0 
Gene 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
PBQ
Query on PBQ

Download SDF File 
Download CCD File 
A
PENTABROMOPSEUDILIN
C10 H4 Br5 N O
LXMNWKJHYOZUQL-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.8 Å
  • R-Value Free: 0.265 
  • R-Value Work: 0.217 
  • Space Group: C 2 2 21
Unit Cell:
Length (Å)Angle (°)
a = 89.758α = 90.00
b = 150.464β = 90.00
c = 154.550γ = 90.00
Software Package:
Software NamePurpose
CNSrefinement
PROTEUM2data scaling
PROTEUM2data reduction
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-01-13
    Type: Initial release
  • Version 1.1: 2011-05-08
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2018-02-28
    Type: Data collection