1GSX

CRYSTAL STRUCTURE OF THE P65 CRYSTAL FORM OF PHOTOACTIVE YELLOW PROTEIN G47S/G51S MUTANT


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.79 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.197 

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This is version 1.2 of the entry. See complete history


Literature

Engineering Photocycle Dynamics: Crystal Structures and Kinetics of Three Photoactive Yellow Protein Hinge-Bending Mutants

Van Aalten, D.M.F.Haker, A.Hendriks, J.Hellingwerf, K.J.Joshua-Tor, L.Crielaard, W.

(2002) J Biol Chem 227: 6438

  • DOI: 10.1074/jbc.M109313200
  • Primary Citation of Related Structures:  
    1GSV, 1GSW, 1GSX

  • PubMed Abstract: 
  • Crystallographic and spectroscopic analyses of three hinge-bending mutants of the photoactive yellow protein are described. Previous studies have identified Gly(47) and Gly(51) as possible hinge points in the structure of the protein, allowing backbone segments around the chromophore to undergo large concerted motions ...

    Crystallographic and spectroscopic analyses of three hinge-bending mutants of the photoactive yellow protein are described. Previous studies have identified Gly(47) and Gly(51) as possible hinge points in the structure of the protein, allowing backbone segments around the chromophore to undergo large concerted motions. We have designed, crystallized, and solved the structures of three mutants: G47S, G51S, and G47S/G51S. The protein dynamics of these mutants are significantly affected. Transitions in the photocycle, measured with laser induced transient absorption spectroscopy, show rates up to 6-fold different from the wild type protein and show an additive effect in the double mutant. Compared with the native structure, no significant conformational differences were observed in the structures of the mutant proteins. We conclude that the structural and dynamic integrity of the region around these mutations is of crucial importance to the photocycle and suggest that the hinge-bending properties of Gly(51) may also play a role in PAS domain proteins where it is one of the few conserved residues.


    Organizational Affiliation

    W. M. Keck Structural Biology, Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724, USA. dava@davapc1.bioch.dundee.ac.uk



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
PHOTOACTIVE YELLOW PROTEINA125Halorhodospira halophilaMutation(s): 2 
Gene Names: pyp
UniProt
Find proteins for P16113 (Halorhodospira halophila)
Explore P16113 
Go to UniProtKB:  P16113
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP16113
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
HC4
Query on HC4

Download Ideal Coordinates CCD File 
B [auth A]4'-HYDROXYCINNAMIC ACID
C9 H8 O3
NGSWKAQJJWESNS-ZZXKWVIFSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.79 Å
  • R-Value Free: 0.238 
  • R-Value Work: 0.197 
  • R-Value Observed: 0.197 
  • Space Group: P 65
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 40.42α = 90
b = 40.42β = 90
c = 118.61γ = 120
Software Package:
Software NamePurpose
CNSrefinement
MARdata reduction
SCALEPACKdata scaling
AMoREphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-02-14
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance