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A2BP21

- PSBA_PROMS

UniProt

A2BP21 - PSBA_PROMS

Protein

Photosystem Q(B) protein

Gene

psbA1

more
Organism
Prochlorococcus marinus (strain AS9601)
Status
Reviewed - Annotation score: 4 out of 5- Protein inferred from homologyi
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    • History
      Entry version 59 (01 Oct 2014)
      Sequence version 1 (20 Feb 2007)
      Previous versions | rss
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    Functioni

    This is one of the two reaction center proteins of photosystem II.By similarity

    Catalytic activityi

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

    Cofactori

    The PsbA/B heterodimer binds P680, the primary electron donor of PSII. It shares a non-heme iron and each subunit binds additional chlorophylls and pheophytin. PsbA provides most of the ligands for the Mn-cluster of the oxygen-evolving complex.UniRule annotation

    Sites

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Metal bindingi171 – 1711Calcium-manganese-oxide cluster [Ca-4Mn-5O]; calciumUniRule annotation
    Metal bindingi171 – 1711Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 1UniRule annotation
    Metal bindingi190 – 1901Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 2UniRule annotation
    Metal bindingi216 – 2161Iron; shared with heterodimeric partnerUniRule annotation
    Metal bindingi273 – 2731Iron; shared with heterodimeric partnerUniRule annotation
    Metal bindingi333 – 3331Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 2; via tele nitrogenUniRule annotation
    Metal bindingi334 – 3341Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 1UniRule annotation
    Metal bindingi334 – 3341Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 3UniRule annotation
    Metal bindingi343 – 3431Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 2UniRule annotation
    Metal bindingi343 – 3431Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 4UniRule annotation
    Sitei345 – 3462Cleavage; by CtpAUniRule annotation
    Metal bindingi345 – 3451Calcium-manganese-oxide cluster [Ca-4Mn-5O]; calcium; via carboxylateUniRule annotation
    Metal bindingi345 – 3451Calcium-manganese-oxide cluster [Ca-4Mn-5O]; manganese 4; via carboxylateUniRule 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
    2. response to herbicide Source: UniProtKB-KW

    Keywords - Molecular functioni

    Oxidoreductase

    Keywords - Biological processi

    Electron transport, Herbicide resistance, Photosynthesis, Transport

    Keywords - Ligandi

    Calcium, Iron, Manganese, Metal-binding

    Enzyme and pathway databases

    BioCyciPMAR146891:GH90-1276-MONOMER.
    PMAR146891:GH90-247-MONOMER.

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Photosystem Q(B) proteinUniRule annotation (EC:1.10.3.9UniRule annotation)
    Alternative name(s):
    32 kDa thylakoid membrane proteinUniRule annotation
    Photosystem II protein D1UniRule annotation
    Gene namesi
    Name:psbA1UniRule annotation
    Ordered Locus Names:A9601_02441
    AND
    Name:psbA2UniRule annotation
    Ordered Locus Names:A9601_12521
    OrganismiProchlorococcus marinus (strain AS9601)
    Taxonomic identifieri146891 [NCBI]
    Taxonomic lineageiBacteriaCyanobacteriaProchloralesProchlorococcaceaeProchlorococcus
    ProteomesiUP000002590: Chromosome

    Subcellular locationi

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

    GO - Cellular componenti

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

    Keywords - Cellular componenti

    Membrane, Photosystem II, Thylakoid

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Chaini1 – 345345Photosystem Q(B) proteinPRO_0000316355Add
    BLAST
    Propeptidei346 – 36015UniRule annotationPRO_0000316356Add
    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

    Protein-protein interaction databases

    STRINGi146891.A9601_12521.

    Structurei

    3D structure databases

    ProteinModelPortaliA2BP21.
    SMRiA2BP21. Positions 15-345.
    ModBaseiSearch...
    MobiDBiSearch...

    Transmembrane

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Transmembranei37 – 5721HelicalUniRule annotationAdd
    BLAST
    Transmembranei110 – 13021HelicalUniRule annotationAdd
    BLAST
    Transmembranei142 – 16524HelicalUniRule annotationAdd
    BLAST
    Transmembranei193 – 21927HelicalUniRule annotationAdd
    BLAST
    Transmembranei270 – 29021HelicalUniRule annotationAdd
    BLAST

    Family & Domainsi

    Sequence similaritiesi

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

    Keywords - Domaini

    Transmembrane, Transmembrane helix

    Phylogenomic databases

    eggNOGiNOG04871.
    HOGENOMiHOG000246913.
    KOiK02703.
    OMAiCFTIAFI.
    OrthoDBiEOG6Q2SGP.

    Family and domain databases

    Gene3Di1.20.85.10. 1 hit.
    HAMAPiMF_01379. PSII_PsbA_D1.
    InterProiIPR000484. Photo_RC_L/M.
    IPR005867. PSII_D1.
    [Graphical view]
    PfamiPF00124. Photo_RC. 1 hit.
    [Graphical view]
    PRINTSiPR00256. REACTNCENTRE.
    SUPFAMiSSF81483. SSF81483. 1 hit.
    TIGRFAMsiTIGR01151. psbA. 1 hit.
    PROSITEiPS00244. REACTION_CENTER. 1 hit.
    [Graphical view]

    Sequencei

    Sequence statusi: Complete.

    Sequence processingi: The displayed sequence is further processed into a mature form.

    A2BP21-1 [UniParc]FASTAAdd to Basket

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    MTTIQQQRSS LLKGWPQFCE WVTSTNNRIY VGWFGVLMIP CLLTAAACFI    50
    VAFIAAPPVD IDGIREPVAG SFLYGNNIIS GAVVPSSNAI GLHFYPIWEA 100
    ATVDEWLYNG GPYQLVIFHF LIGISAYMGR QWELSYRLGM RPWICVAYSA 150
    PVSAAFAVFL VYPFGQGSFS DGMPLGISGT FNFMFVFQAE HNILMHPFHM 200
    AGVAGMFGGS LFSAMHGSLV TSSLIRETTE TESQNYGYKF GQEEETYNIV 250
    AAHGYFGRLI FQYASFNNSR SLHFFLAVFP VVCVWLTSMG ICTMAFNLNG 300
    FNFNQSVVDA NGKIVPTWGD VLNRANLGME VMHERNAHNF PLDLAAAEST 350
    TVALSAPAIG 360
    Length:360
    Mass (Da):39,638
    Last modified:February 20, 2007 - v1
    Checksum:iE8389C98C87541E0
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    CP000551 Genomic DNA. Translation: ABM69532.1.
    CP000551 Genomic DNA. Translation: ABM70536.1.
    RefSeqiYP_001008639.1. NC_008816.1.
    YP_001009643.1. NC_008816.1.

    Genome annotation databases

    EnsemblBacteriaiABM69532; ABM69532; A9601_02441.
    ABM70536; ABM70536; A9601_12521.
    GeneIDi4716928.
    4717969.
    KEGGipmb:A9601_02441.
    pmb:A9601_12521.
    PATRICi22981935. VBIProMar75723_0244.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    CP000551 Genomic DNA. Translation: ABM69532.1 .
    CP000551 Genomic DNA. Translation: ABM70536.1 .
    RefSeqi YP_001008639.1. NC_008816.1.
    YP_001009643.1. NC_008816.1.

    3D structure databases

    ProteinModelPortali A2BP21.
    SMRi A2BP21. Positions 15-345.
    ModBasei Search...
    MobiDBi Search...

    Protein-protein interaction databases

    STRINGi 146891.A9601_12521.

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Genome annotation databases

    EnsemblBacteriai ABM69532 ; ABM69532 ; A9601_02441 .
    ABM70536 ; ABM70536 ; A9601_12521 .
    GeneIDi 4716928.
    4717969.
    KEGGi pmb:A9601_02441.
    pmb:A9601_12521.
    PATRICi 22981935. VBIProMar75723_0244.

    Phylogenomic databases

    eggNOGi NOG04871.
    HOGENOMi HOG000246913.
    KOi K02703.
    OMAi CFTIAFI.
    OrthoDBi EOG6Q2SGP.

    Enzyme and pathway databases

    BioCyci PMAR146891:GH90-1276-MONOMER.
    PMAR146891:GH90-247-MONOMER.

    Family and domain databases

    Gene3Di 1.20.85.10. 1 hit.
    HAMAPi MF_01379. PSII_PsbA_D1.
    InterProi IPR000484. Photo_RC_L/M.
    IPR005867. PSII_D1.
    [Graphical view ]
    Pfami PF00124. Photo_RC. 1 hit.
    [Graphical view ]
    PRINTSi PR00256. REACTNCENTRE.
    SUPFAMi SSF81483. SSF81483. 1 hit.
    TIGRFAMsi TIGR01151. psbA. 1 hit.
    PROSITEi PS00244. REACTION_CENTER. 1 hit.
    [Graphical view ]
    ProtoNeti Search...

    Publicationsi

    1. Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
      Strain: AS9601.

    Entry informationi

    Entry nameiPSBA_PROMS
    AccessioniPrimary (citable) accession number: A2BP21
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: February 5, 2008
    Last sequence update: February 20, 2007
    Last modified: October 1, 2014
    This is version 59 of the entry and version 1 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)
    Annotation programProkaryotic Protein Annotation Program

    Miscellaneousi

    Miscellaneous

    Herbicides such as atrazine, BNT, diuron or ioxynil bind to Q(B) and block electron transport.UniRule annotation
    Cyanobacteria usually contain more than 2 copies of the psbA gene.

    Keywords - Technical termi

    Complete proteome

    Documents

    1. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3