3LS0

Crystal Structure of Cyanobacterial PsbQ from Synechocystis sp. PCC 6803


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.208 
  • R-Value Work: 0.167 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal Structure of PsbQ from Synechocystis sp. PCC 6803 at 1.8 A: Implications for Binding and Function in Cyanobacterial Photosystem II

Jackson, S.A.Fagerlund, R.D.Wilbanks, S.M.Eaton-Rye, J.J.

(2010) Biochemistry 49: 2765-2767

  • DOI: 10.1021/bi100217h
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • In Synechocystis sp. PCC 6803, PsbQ is associated with photosystem II (PSII) complexes with the highest activity and stability. However, this subunit is not found in PSII X-ray crystallographic structures from Thermosynechococcus elongatus or Thermos ...

    In Synechocystis sp. PCC 6803, PsbQ is associated with photosystem II (PSII) complexes with the highest activity and stability. However, this subunit is not found in PSII X-ray crystallographic structures from Thermosynechococcus elongatus or Thermosynechococcus vulcanus. We present the crystal structure of cyanobacterial PsbQ determined in the presence and absence of Zn(2+). The protein has a well-defined helical core, containing four helices arranged in an up-down-up-down fold. A conserved potential interaction site composed of a divalent metal binding site and adjacent hydrophobic pocket has been identified.


    Organizational Affiliation

    Department of Biochemistry, University of Otago, Dunedin 9054, New Zealand.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Sll1638 protein
A
133Synechocystis sp. (strain PCC 6803 / Kazusa)Mutation(s): 0 
Find proteins for P73048 (Synechocystis sp. (strain PCC 6803 / Kazusa))
Go to UniProtKB:  P73048
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.8 Å
  • R-Value Free: 0.208 
  • R-Value Work: 0.167 
  • Space Group: P 21 21 21
Unit Cell:
Length (Å)Angle (°)
a = 28.332α = 90.00
b = 46.787β = 90.00
c = 93.510γ = 90.00
Software Package:
Software NamePurpose
XDSdata reduction
REFMACrefinement
SHELXphasing
PDB_EXTRACTdata extraction
SCALAdata scaling

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2010-03-31
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance
  • Version 1.2: 2017-11-01
    Type: Refinement description