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(-) Description

Title :  CRYSTAL STRUCTURE OF PSBQ POLYPEPTIDE OF PHOTOSYSTEM II FROM HIGHER PLANTS
 
Authors :  V. Calderone, M. Trabucco, A. Vujicic, R. Battistutta, G. M. Giacometti, F. Andreucci, R. Barbato, G. Zanotti
Date :  17 Feb 03  (Deposition) - 26 Aug 03  (Release) - 24 Feb 09  (Revision)
Method :  X-RAY DIFFRACTION
Resolution :  1.95
Chains :  Asym./Biol. Unit :  A
Keywords :  Photosystem Ii, Oxygen-Enhancer Evolving Complex, Water Oxidizing Complex, Psbq, Oee3, Oxidoreductase (Keyword Search: [Gene Ontology, PubMed, Web (Google)] )
 
Reference :  V. Calderone, M. Trabucco, A. Vujicic, R. Battistutta, G. M. Giacometti, F. Andreucci, R. Barbato, G. Zanotti
Crystal Structure Of The Psbq Protein Of Photosystem Ii From Higher Plants
Embo Rep. V. 4 900 2003
PubMed-ID: 12949587  |  Reference-DOI: 10.1038/SJ.EMBOR.EMBOR923
(for further references see the PDB file header)

(-) Compounds

Molecule 1 - OXYGEN-EVOLVING ENHANCER PROTEIN 3
    Chains: A
    Organism Common: SPINACH
    Organism Scientific: SPINACIA OLERACEA
    Organism Taxid: 3562
    Other Details: THE PROTEIN WAS EXTRACTED FROM PS II THYLACOID MEMBRANES
    Synonym: OEE3, 16 KDA SUBUNIT OF OXYGEN EVOLVING SYSTEM OF PHOTOSYSTEM II, OEC 16 KDA SUBUNIT, PSBQ

 Structural Features

(-) Chains, Units

  1
Asymmetric/Biological Unit : A

Summary Information (see also Sequences/Alignments below)

(-) Ligands, Modified Residues, Ions  (1, 1)

Asymmetric/Biological Unit (1, 1)
No.NameCountTypeFull Name
1ZN1Ligand/IonZINC ION

(-) Sites  (1, 1)

Asymmetric Unit (1, 1)
No.NameEvidenceResiduesDescription
1AC1SOFTWAREGLN A:105 , HIS A:120 , GLU A:129 , HOH A:1003BINDING SITE FOR RESIDUE ZN A 150

(-) SS Bonds  (0, 0)

(no "SS Bond" information available for 1NZE)

(-) Cis Peptide Bonds  (0, 0)

(no "Cis Peptide Bond" information available for 1NZE)

 Sequence-Structure Mapping

(-) SAPs(SNPs)/Variants  (0, 0)

(no "SAP(SNP)/Variant" information available for 1NZE)

(-) PROSITE Motifs  (0, 0)

(no "PROSITE Motif" information available for 1NZE)

(-) Exons   (0, 0)

(no "Exon" information available for 1NZE)

(-) Sequences/Alignments

Asymmetric/Biological Unit
   Reformat: Number of residues per line =  ('0' or empty: single-line sequence representation)
  Number of residues per labelling interval =   
  UniProt sequence: complete  aligned part    
   Show mapping: SCOP domains CATH domains Pfam domains Secondary structure (by author)
SAPs(SNPs) PROSITE motifs Exons
(details for a mapped element are shown in a popup box when the mouse pointer rests over it) 
Chain A from PDB  Type:PROTEIN  Length:112
 aligned with PSBQ_SPIOL | P12301 from UniProtKB/Swiss-Prot  Length:232

    Alignment length:112
                                   130       140       150       160       170       180       190       200       210       220       230  
           PSBQ_SPIOL   121 FYLQPLPPTEAAQRAKVSASEILNVKQFIDRKAWPSLQNDLRLRASYLRYDLKTVISAKPKDEKKSLQELTSKLFSSIDNLDHAAKIKSPTEAEKYYGQTVSNINEVLAKLG 232
               SCOP domains d1nzea_ A: Oxygen-evolving enhancer protein 3,                                                                   SCOP domains
               CATH domains 1nzeA00 A:38-149  [code=1.20.120.290, no name defined]                                                           CATH domains
               Pfam domains PsbQ-1nzeA01 A:38-149                                                                                            Pfam domains
         Sec.struct. author .........hhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhhhhhhhh.hhhhhhhhhhhhhhhhhhhhhh.. Sec.struct. author
                 SAPs(SNPs) ---------------------------------------------------------------------------------------------------------------- SAPs(SNPs)
                    PROSITE ---------------------------------------------------------------------------------------------------------------- PROSITE
                 Transcript ---------------------------------------------------------------------------------------------------------------- Transcript
                 1nze A  38 FYLQPLPPTEAAQRAKVSASEILNVKQFIDRKAWPSLQNDLRLRASYLRYDLKTVISAKPKDEKKSLQELTSKLFSSIDNLDHAAKIKSPTEAEKYYGQTVSNINEVLAKLG 149
                                    47        57        67        77        87        97       107       117       127       137       147
   Legend:   → Mismatch (orange background)
  - → Gap (green background, '-', border residues have a numbering label)
    → Modified Residue (blue background, lower-case, 'x' indicates undefined single-letter code, labelled with number + name)
  x → Chemical Group (purple background, 'x', labelled with number + name, e.g. ACE or NH2)
  extra numbering lines below/above indicate numbering irregularities and modified residue names etc., number ends below/above '|'

 Classification and Annotation

(-) SCOP Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: All alpha proteins (14657)

(-) CATH Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Class: Mainly Alpha (13335)

(-) Pfam Domains  (1, 1)

Asymmetric/Biological Unit
(-)
Clan: no clan defined [family: PsbQ] (4)

(-) Gene Ontology  (10, 10)

Asymmetric/Biological Unit(hide GO term definitions)
Chain A   (PSBQ_SPIOL | P12301)
molecular function
    GO:0005509    calcium ion binding    Interacting selectively and non-covalently with calcium ions (Ca2+).
biological process
    GO:0015979    photosynthesis    The synthesis by organisms of organic chemical compounds, especially carbohydrates, from carbon dioxide (CO2) using energy obtained from light rather than from the oxidation of chemical compounds.
cellular component
    GO:0009507    chloroplast    A chlorophyll-containing plastid with thylakoids organized into grana and frets, or stroma thylakoids, and embedded in a stroma.
    GO:0009535    chloroplast thylakoid membrane    The pigmented membrane of a chloroplast thylakoid. An example of this component is found in Arabidopsis thaliana.
    GO:0019898    extrinsic component of membrane    The component of a membrane consisting of gene products and protein complexes that are loosely bound to one of its surfaces, but not integrated into the hydrophobic region.
    GO:0016020    membrane    A lipid bilayer along with all the proteins and protein complexes embedded in it an attached to it.
    GO:0009523    photosystem II    A photosystem that contains a pheophytin-quinone reaction center with associated accessory pigments and electron carriers. In cyanobacteria and chloroplasts, in the presence of light, PSII functions as a water-plastoquinone oxidoreductase, transferring electrons from water to plastoquinone, whereas other photosynthetic bacteria carry out anoxygenic photosynthesis and oxidize other compounds to re-reduce the photoreaction center.
    GO:0009654    photosystem II oxygen evolving complex    A complex, composed of a cluster of manganese, calcium and chloride ions bound to extrinsic proteins, that catalyzes the splitting of water to O2 and 4 H+. In cyanobacteria there are five extrinsic proteins in OEC (PsbO, PsbP-like, PsbQ-like, PsbU and PsbV), while in plants there are only three (PsbO, PsbP and PsbQ).
    GO:0009536    plastid    Any member of a family of organelles found in the cytoplasm of plants and some protists, which are membrane-bounded and contain DNA. Plant plastids develop from a common type, the proplastid.
    GO:0009579    thylakoid    A membranous cellular structure that bears the photosynthetic pigments in plants, algae, and cyanobacteria. In cyanobacteria thylakoids are of various shapes and are attached to, or continuous with, the plasma membrane. In eukaryotes they are flattened, membrane-bounded disk-like structures located in the chloroplasts; in the chloroplasts of higher plants the thylakoids form dense stacks called grana. Isolated thylakoid preparations can carry out photosynthetic electron transport and the associated phosphorylation.

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 Related Entries

(-) Entries Sharing at Least One Protein Chain (UniProt ID)

UniProtKB/Swiss-Prot
        PSBQ_SPIOL | P12301: 1vyk 2mwq 3jcu

(-) Related Entries Specified in the PDB File

1fe1 PHOTOSYSTEM II FROM SYNECHOCOCCUS ELONGATUS
1ilx PHOTOSYSTEM II FROM SYNECHOCOCCUS ELONGATUS