Crystal Structure of GENOMES UNCOUPLED 4 (GUN4) in Complex with Magnesium Deuteroporphyrin IX

Experimental Data Snapshot

  • Resolution: 2.00 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.184 

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This is version 1.3 of the entry. See complete history


Crystal Structures of GUN4 in Complex with Porphyrins.

Chen, X.Pu, H.Wang, X.Long, W.Lin, R.Liu, L.

(2015) Mol Plant 8: 1125-1127

  • DOI: https://doi.org/10.1016/j.molp.2015.04.013
  • Primary Citation of Related Structures:  
    4XKB, 4XKC

  • Organizational Affiliation

    Photosynthesis Research Center, Key Laboratory of Photobiology, Institute of Botany, Chinese Academy of Sciences, 20 Nanxincun, Haidian District, Beijing 100093, China; University of Chinese Academy of Sciences, 19A Yuquan Road, Haidian District, Beijing 100049, China.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Ycf53-like protein233Synechocystis sp. PCC 6803 substr. KazusaMutation(s): 0 
Gene Names: sll0558
Find proteins for P72583 (Synechocystis sp. (strain PCC 6803 / Kazusa))
Explore P72583 
Go to UniProtKB:  P72583
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP72583
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
Query on MD9

Download Ideal Coordinates CCD File 
B [auth A]Magnesium deuteroporphyrin IX
C30 H28 Mg N4 O4
Experimental Data & Validation

Experimental Data

  • Resolution: 2.00 Å
  • R-Value Free: 0.229 
  • R-Value Work: 0.182 
  • R-Value Observed: 0.184 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 32.849α = 90
b = 64.026β = 90
c = 106.144γ = 90
Software Package:
Software NamePurpose
HKL-2000data reduction
HKL-2000data scaling

Structure Validation

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Ligand Structure Quality Assessment 

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2015-05-20
    Type: Initial release
  • Version 1.1: 2015-07-15
    Changes: Database references
  • Version 1.2: 2015-07-22
    Changes: Database references
  • Version 1.3: 2024-03-20
    Changes: Data collection, Database references, Derived calculations, Source and taxonomy, Structure summary