2M0Z

cis form of a photoswitchable PDZ domain crosslinked with an azobenzene derivative


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Kinetic response of a photoperturbed allosteric protein.

Buchli, B.Waldauer, S.A.Walser, R.Donten, M.L.Pfister, R.Blochliger, N.Steiner, S.Caflisch, A.Zerbe, O.Hamm, P.

(2013) Proc.Natl.Acad.Sci.USA 110: 11725-11730

  • DOI: 10.1073/pnas.1306323110
  • Primary Citation of Related Structures:  2M10

  • PubMed Abstract: 
  • By covalently linking an azobenzene photoswitch across the binding groove of a PDZ domain, a conformational transition, similar to the one occurring upon ligand binding to the unmodified domain, can be initiated on a picosecond timescale by a laser p ...

    By covalently linking an azobenzene photoswitch across the binding groove of a PDZ domain, a conformational transition, similar to the one occurring upon ligand binding to the unmodified domain, can be initiated on a picosecond timescale by a laser pulse. The protein structures have been characterized in the two photoswitch states through NMR spectroscopy and the transition between them through ultrafast IR spectroscopy and molecular dynamics simulations. The binding groove opens on a 100-ns timescale in a highly nonexponential manner, and the molecular dynamics simulations suggest that the process is governed by the rearrangement of the water network on the protein surface. We propose this rearrangement of the water network to be another possible mechanism of allostery.


    Organizational Affiliation

    Department of Chemistry, University of Zurich, CH-8057 Zurich, Switzerland.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Tyrosine-protein phosphatase non-receptor type 13
A
97Homo sapiensGene Names: PTPN13 (PNP1, PTP1E, PTPL1)
EC: 3.1.3.48
Find proteins for Q12923 (Homo sapiens)
Go to Gene View: PTPN13
Go to UniProtKB:  Q12923
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
33B
Query on 33B

Download SDF File 
Download CCD File 
A
3,3'-(E)-diazene-1,2-diylbis{6-[(chloroacetyl)amino]benzenesulfonic acid}
C16 H14 Cl2 N4 O8 S2
XGDZZBFDOAZUPI-QURGRASLSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2013-07-03
    Type: Initial release
  • Version 1.1: 2013-07-17
    Type: Database references
  • Version 1.2: 2013-07-24
    Type: Database references
  • Version 1.3: 2013-08-07
    Type: Database references