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Q42496

- PETM_CHLRE

UniProt

Q42496 - PETM_CHLRE

Protein

Cytochrome b6-f complex subunit 7, chloroplastic

Gene

petM

Organism
Chlamydomonas reinhardtii (Chlamydomonas smithii)
Status
Reviewed - Annotation score: 4 out of 5- Experimental evidence at protein leveli
  1. Functioni

    Component of the cytochrome b6-f complex, which mediates electron transfer between photosystem II (PSII) and photosystem I (PSI), cyclic electron flow around PSI, and state transitions.

    GO - Biological processi

    1. oxidation-reduction process Source: UniProtKB-KW

    Keywords - Biological processi

    Electron transport, Respiratory chain, Transport

    Enzyme and pathway databases

    BioCyciMetaCyc:CHLREDRAFT_147968-MONOMER.

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Cytochrome b6-f complex subunit 7, chloroplastic
    Alternative name(s):
    Cytochrome b6-f complex 4 kDa subunit
    Cytochrome b6-f complex subunit PetM
    Cytochrome b6-f complex subunit VII
    Gene namesi
    Name:petM
    Synonyms:petX
    OrganismiChlamydomonas reinhardtii (Chlamydomonas smithii)
    Taxonomic identifieri3055 [NCBI]
    Taxonomic lineageiEukaryotaViridiplantaeChlorophytaChlorophyceaeChlamydomonadalesChlamydomonadaceaeChlamydomonas

    Subcellular locationi

    GO - Cellular componenti

    1. chloroplast thylakoid membrane Source: UniProtKB-SubCell
    2. cytochrome b6f complex Source: InterPro
    3. integral component of membrane Source: UniProtKB-KW
    4. respiratory chain Source: UniProtKB-KW

    Keywords - Cellular componenti

    Chloroplast, Membrane, Plastid, Thylakoid

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Transit peptidei1 – 6060Chloroplast3 PublicationsAdd
    BLAST
    Chaini61 – 9939Cytochrome b6-f complex subunit 7, chloroplasticPRO_0000023864Add
    BLAST

    Interactioni

    Subunit structurei

    The 4 large subunits of the cytochrome b6-f complex are cytochrome b6, subunit IV (17 kDa polypeptide, PetD), cytochrome f and the Rieske protein, while the 4 small subunits are PetG, PetL, PetM and PetN. The complex functions as a dimer.

    Structurei

    Secondary structure

    1
    99
    Legend: HelixTurnBeta strand
    Show more details
    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Helixi63 – 9331

    3D structure databases

    Select the link destinations:
    PDBe
    RCSB PDB
    PDBj
    Links Updated
    EntryMethodResolution (Å)ChainPositionsPDBsum
    1Q90X-ray3.10M61-99[»]
    ProteinModelPortaliQ42496.
    SMRiQ42496. Positions 62-95.
    ModBaseiSearch...
    MobiDBiSearch...

    Miscellaneous databases

    EvolutionaryTraceiQ42496.

    Topological domain

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Topological domaini61 – 677LumenalSequence Analysis
    Topological domaini89 – 9911StromalSequence AnalysisAdd
    BLAST

    Transmembrane

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Transmembranei68 – 8821HelicalSequence AnalysisAdd
    BLAST

    Family & Domainsi

    Sequence similaritiesi

    Belongs to the PetM family.Curated

    Keywords - Domaini

    Transit peptide, Transmembrane, Transmembrane helix

    Family and domain databases

    HAMAPiMF_00396. Cytb6_f_PetM.
    InterProiIPR012595. PetM_cyt_b6/f_cplx_su7.
    [Graphical view]
    PfamiPF08041. PetM. 1 hit.
    [Graphical view]

    Sequencei

    Sequence statusi: Complete.

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

    Q42496-1 [UniParc]FASTAAdd to Basket

    « Hide

    MAMSIAARSA CCGVAAPRSS TVRVAAARPA VRPSLRTAGQ KAAPSRGVAT   50
    KAVNELAMIA GEAEFIAGTA LTMVGMTLVG LAIGFVLLRV ESLVEEGKI 99
    Length:99
    Mass (Da):9,998
    Last modified:November 1, 1997 - v1
    Checksum:i5B3E45315A701AE4
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    X92488 mRNA. Translation: CAA63221.1.
    U36401 Genomic DNA. Translation: AAC49525.1.
    PIRiT08070.
    RefSeqiXP_001694096.1. XM_001694044.1.
    UniGeneiCre.6650.

    Genome annotation databases

    GeneIDi5719581.
    KEGGicre:CHLREDRAFT_147968.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    X92488 mRNA. Translation: CAA63221.1 .
    U36401 Genomic DNA. Translation: AAC49525.1 .
    PIRi T08070.
    RefSeqi XP_001694096.1. XM_001694044.1.
    UniGenei Cre.6650.

    3D structure databases

    Select the link destinations:
    PDBe
    RCSB PDB
    PDBj
    Links Updated
    Entry Method Resolution (Å) Chain Positions PDBsum
    1Q90 X-ray 3.10 M 61-99 [» ]
    ProteinModelPortali Q42496.
    SMRi Q42496. Positions 62-95.
    ModBasei Search...
    MobiDBi Search...

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Genome annotation databases

    GeneIDi 5719581.
    KEGGi cre:CHLREDRAFT_147968.

    Enzyme and pathway databases

    BioCyci MetaCyc:CHLREDRAFT_147968-MONOMER.

    Miscellaneous databases

    EvolutionaryTracei Q42496.

    Family and domain databases

    HAMAPi MF_00396. Cytb6_f_PetM.
    InterProi IPR012595. PetM_cyt_b6/f_cplx_su7.
    [Graphical view ]
    Pfami PF08041. PetM. 1 hit.
    [Graphical view ]
    ProtoNeti Search...

    Publicationsi

    1. "The 4-kDa nuclear-encoded PetM polypeptide of the chloroplast cytochrome b6f complex. Nucleic acid and protein sequences, targeting signals, transmembrane topology."
      de Vitry C., Breyton C., Pierre Y., Popot J.-L.
      J. Biol. Chem. 271:10667-10671(1996) [PubMed] [Europe PMC] [Abstract]
      Cited for: NUCLEOTIDE SEQUENCE [MRNA], PROTEIN SEQUENCE OF 61-98.
      Strain: cw15.
    2. "Nucleotide sequence of the PetM gene encoding a 4 kDa subunit of the cytochrome b6f complex from Chlamydomonas reinhardtii."
      Ketchner S.L., Malkin R.
      Biochim. Biophys. Acta 1273:195-197(1996) [PubMed] [Europe PMC] [Abstract]
      Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
      Strain: CC-1928.
    3. "Purification and characterization of the cytochrome b6 f complex from Chlamydomonas reinhardtii."
      Pierre Y., Breyton C., Kramer D., Popot J.-L.
      J. Biol. Chem. 270:29342-29349(1995) [PubMed] [Europe PMC] [Abstract]
      Cited for: PROTEIN SEQUENCE OF 61-87, CHARACTERIZATION.
      Strain: WT12.
    4. "Low molecular weight subunits associated with the cytochrome b6f complexes from spinach and Chlamydomonas reinhardtii."
      Schmidt C.L., Malkin R.
      Photosyn. Res. 38:73-81(1993)
      Cited for: PROTEIN SEQUENCE OF 61-82.
      Strain: CC-124.
    5. "An atypical haem in the cytochrome b(6)f complex."
      Stroebel D., Choquet Y., Popot J.-L., Picot D.
      Nature 426:413-418(2003) [PubMed] [Europe PMC] [Abstract]
      Cited for: X-RAY CRYSTALLOGRAPHY (3.1 ANGSTROMS) OF 61-99.

    Entry informationi

    Entry nameiPETM_CHLRE
    AccessioniPrimary (citable) accession number: Q42496
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: November 1, 1997
    Last sequence update: November 1, 1997
    Last modified: October 1, 2014
    This is version 66 of the entry and version 1 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)
    Annotation programPlant Protein Annotation Program

    Miscellaneousi

    Keywords - Technical termi

    3D-structure, Direct protein sequencing

    Documents

    1. PDB cross-references
      Index of Protein Data Bank (PDB) cross-references
    2. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3