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A0T0T0

- PSBD_THAPS

UniProt

A0T0T0 - PSBD_THAPS

Protein

Photosystem II D2 protein

Gene

psbD

Organism
Thalassiosira pseudonana (Marine diatom) (Cyclotella nana)
Status
Reviewed - Annotation score: 3 out of 5- Protein inferred from homologyi
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    • History
      Entry version 51 (01 Oct 2014)
      Sequence version 1 (09 Jan 2007)
      Previous versions | rss
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    Functioni

    One of the two reaction center proteins of photosystem II (PSII), D2 is needed for assembly of a stable PSII complex.UniRule annotation

    Catalytic activityi

    2 H2O + 2 plastoquinone + 4 light = O2 + 2 plastoquinol.UniRule annotation

    Cofactori

    The psbA/B heterodimer shares a non-heme iron and each subunit also binds two chlorophylls and pheophytin.By similarity

    Sites

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Metal bindingi116 – 1161Magnesium (chlorophyll-a D2, axial ligand; peripheral)UniRule annotation
    Metal bindingi213 – 2131Iron; shared with heterodimeric partnerUniRule annotation
    Binding sitei213 – 2131Plastoquinone QAUniRule annotation
    Binding sitei260 – 2601Plastoquinone QA; via amide nitrogenUniRule annotation
    Metal bindingi267 – 2671Iron; shared with heterodimeric partnerUniRule annotation

    GO - Molecular functioni

    1. electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity Source: InterPro
    2. iron ion binding Source: UniProtKB-HAMAP
    3. oxidoreductase activity Source: UniProtKB-KW

    GO - Biological processi

    1. photosynthetic electron transport in photosystem II Source: InterPro

    Keywords - Molecular functioni

    Oxidoreductase

    Keywords - Biological processi

    Electron transport, Photosynthesis, Transport

    Keywords - Ligandi

    Iron, Metal-binding

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Photosystem II D2 proteinUniRule annotation (EC:1.10.3.9UniRule annotation)
    Short name:
    PSII D2 proteinUniRule annotation
    Alternative name(s):
    Photosystem Q(A) proteinUniRule annotation
    Gene namesi
    Name:psbDUniRule annotation
    Encoded oniPlastid; Chloroplast
    OrganismiThalassiosira pseudonana (Marine diatom) (Cyclotella nana)
    Taxonomic identifieri35128 [NCBI]
    Taxonomic lineageiEukaryotaStramenopilesBacillariophytaCoscinodiscophyceaeThalassiosirophycidaeThalassiosiralesThalassiosiraceaeThalassiosira
    ProteomesiUP000001449: Chloroplast

    Subcellular locationi

    Plastidchloroplast thylakoid membrane UniRule annotation; Multi-pass membrane protein UniRule annotation

    GO - Cellular componenti

    1. chloroplast thylakoid membrane Source: UniProtKB-SubCell
    2. integral component of membrane Source: UniProtKB-KW
    3. photosystem II Source: UniProtKB-KW

    Keywords - Cellular componenti

    Chloroplast, Membrane, Photosystem II, Plastid, Thylakoid

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Chaini1 – 351351Photosystem II D2 proteinPRO_0000359709Add
    BLAST

    Interactioni

    Subunit structurei

    The psbA/B heterodimer binds the P680 chlorophylls and subsequent electron acceptors. PSII consists of a core antenna complex that captures photons, and an electron transfer chain that converts photonic excitation into a charge separation. PSII forms dimeric complexes By similarity.By similarity

    Structurei

    3D structure databases

    ProteinModelPortaliA0T0T0.
    SMRiA0T0T0. Positions 1-349.
    ModBaseiSearch...
    MobiDBiSearch...

    Transmembrane

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Transmembranei34 – 5421HelicalUniRule annotationAdd
    BLAST
    Transmembranei107 – 12721HelicalUniRule annotationAdd
    BLAST
    Transmembranei140 – 16223HelicalUniRule annotationAdd
    BLAST
    Transmembranei190 – 21627HelicalUniRule annotationAdd
    BLAST
    Transmembranei264 – 28421HelicalUniRule annotationAdd
    BLAST

    Family & Domainsi

    Sequence similaritiesi

    Belongs to the reaction center PufL/M/PsbA/D family.UniRule annotation

    Keywords - Domaini

    Transmembrane, Transmembrane helix

    Family and domain databases

    Gene3Di1.20.85.10. 2 hits.
    HAMAPiMF_01383. PSII_PsbD_D2.
    InterProiIPR000484. Photo_RC_L/M.
    IPR005868. PSII_PsbD/D2.
    [Graphical view]
    PfamiPF00124. Photo_RC. 1 hit.
    [Graphical view]
    PRINTSiPR00256. REACTNCENTRE.
    SUPFAMiSSF81483. SSF81483. 1 hit.
    TIGRFAMsiTIGR01152. psbD. 1 hit.
    PROSITEiPS00244. REACTION_CENTER. 1 hit.
    [Graphical view]

    Sequencei

    Sequence statusi: Complete.

    A0T0T0-1 [UniParc]FASTAAdd to Basket

    « Hide

    MTIAIGQNQE RGLFDLVDDW LKRDRFVFVG WSGILLFPTA YLAAGGWFTG    50
    TTFVTSWYTH GLASSYLEGC NFLTAAVSTP ANSMGHSLLL LWGPEAQGDF 100
    TRWCQIGGLW AFIALHGAFG LIGFCLRQFE IARLVGIRPY NAIAFSGPIA 150
    VFVSVFLLYP LGQASWFFAP SFGVAAIFRF LLFLQGFHNW TLNPFHMMGV 200
    AGILGGALLC AIHGATVENT LFEDGDAANT FRAFTPTQSE ETYSMVTANR 250
    FWSQIFGVAF SNKRWLHFFM LFVPVAGLWT SSIGIVGLAL NLRAYDFVSQ 300
    ELRAAEDPEF ETFYTKNILL NEGIRSWMAA QDQPHENFVF PEEVLPRGNA 350
    L 351
    Length:351
    Mass (Da):39,064
    Last modified:January 9, 2007 - v1
    Checksum:i3A0912BE20853FB4
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    EF067921 Genomic DNA. Translation: ABK20765.1.
    RefSeqiYP_874542.1. NC_008589.1.

    Genome annotation databases

    GeneIDi4524785.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    EF067921 Genomic DNA. Translation: ABK20765.1 .
    RefSeqi YP_874542.1. NC_008589.1.

    3D structure databases

    ProteinModelPortali A0T0T0.
    SMRi A0T0T0. Positions 1-349.
    ModBasei Search...
    MobiDBi Search...

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Genome annotation databases

    GeneIDi 4524785.

    Family and domain databases

    Gene3Di 1.20.85.10. 2 hits.
    HAMAPi MF_01383. PSII_PsbD_D2.
    InterProi IPR000484. Photo_RC_L/M.
    IPR005868. PSII_PsbD/D2.
    [Graphical view ]
    Pfami PF00124. Photo_RC. 1 hit.
    [Graphical view ]
    PRINTSi PR00256. REACTNCENTRE.
    SUPFAMi SSF81483. SSF81483. 1 hit.
    TIGRFAMsi TIGR01152. psbD. 1 hit.
    PROSITEi PS00244. REACTION_CENTER. 1 hit.
    [Graphical view ]
    ProtoNeti Search...

    Publicationsi

    1. "Chloroplast genomes of the diatoms Phaeodactylum tricornutum and Thalassiosira pseudonana: comparison with other plastid genomes of the red lineage."
      Oudot-Le Secq M.-P., Grimwood J., Shapiro H., Armbrust E.V., Bowler C., Green B.R.
      Mol. Genet. Genomics 277:427-439(2007) [PubMed] [Europe PMC] [Abstract]
      Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
      Strain: CCMP1335.

    Entry informationi

    Entry nameiPSBD_THAPS
    AccessioniPrimary (citable) accession number: A0T0T0
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: January 20, 2009
    Last sequence update: January 9, 2007
    Last modified: October 1, 2014
    This is version 51 of the entry and version 1 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)

    Miscellaneousi

    Miscellaneous

    The peripheral chlorophyll-a D2 molecule has been identified as the spectroscopic species ChlzD2.UniRule annotation

    Keywords - Technical termi

    Complete proteome, Reference proteome

    Documents

    1. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3