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P07368

- LHB2_RHOCA

UniProt

P07368 - LHB2_RHOCA

Protein

Light-harvesting protein B-800/850 beta chain

Gene

pucB

Organism
Rhodobacter capsulatus (Rhodopseudomonas capsulata)
Status
Reviewed - Annotation score: 4 out of 5- Experimental evidence at protein leveli
  1. Functioni

    Antenna complexes are light-harvesting systems, which transfer the excitation energy to the reaction centers.

    Sites

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Metal bindingi20 – 201Magnesium (bacteriochlorophyll axial ligand)Sequence Analysis
    Metal bindingi38 – 381Magnesium (bacteriochlorophyll axial ligand)Sequence Analysis

    GO - Molecular functioni

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

    GO - Biological processi

    1. photosynthesis, light reaction Source: InterPro
    2. protein-chromophore linkage Source: UniProtKB-KW

    Keywords - Molecular functioni

    Light-harvesting polypeptide

    Keywords - Ligandi

    Bacteriochlorophyll, Chlorophyll, Chromophore, Magnesium, Metal-binding

    Names & Taxonomyi

    Protein namesi
    Recommended name:
    Light-harvesting protein B-800/850 beta chain
    Alternative name(s):
    Antenna pigment protein beta chain
    LH-3B
    Gene namesi
    Name:pucB
    OrganismiRhodobacter capsulatus (Rhodopseudomonas capsulata)
    Taxonomic identifieri1061 [NCBI]
    Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhodobacteralesRhodobacteraceaeRhodobacter

    Subcellular locationi

    GO - Cellular componenti

    1. integral component of membrane Source: UniProtKB-KW
    2. plasma membrane Source: UniProtKB-SubCell
    3. plasma membrane light-harvesting complex Source: InterPro

    Keywords - Cellular componenti

    Antenna complex, Cell inner membrane, Cell membrane, Membrane

    PTM / Processingi

    Molecule processing

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Chaini1 – 4949Light-harvesting protein B-800/850 beta chainPRO_0000099823Add
    BLAST

    Amino acid modifications

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Modified residuei1 – 11N-formylmethionine; partial1 Publication

    Keywords - PTMi

    Formylation

    Interactioni

    Subunit structurei

    The core complex is formed by different alpha and beta chains, binding bacteriochlorophyll molecules, and arranged most probably in tetrameric structures disposed around the reaction center. The non-pigmented gamma chains may constitute additional components.

    Structurei

    3D structure databases

    ProteinModelPortaliP07368.
    SMRiP07368. Positions 11-48.
    ModBaseiSearch...
    MobiDBiSearch...

    Topological domain

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Topological domaini1 – 2121CytoplasmicSequence AnalysisAdd
    BLAST
    Topological domaini45 – 495PeriplasmicSequence Analysis

    Transmembrane

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Transmembranei22 – 4423HelicalSequence AnalysisAdd
    BLAST

    Family & Domainsi

    Sequence similaritiesi

    Belongs to the antena complex beta subunit family.Curated

    Keywords - Domaini

    Transmembrane, Transmembrane helix

    Phylogenomic databases

    HOGENOMiHOG000230332.

    Family and domain databases

    InterProiIPR000066. Antenna_a/b.
    IPR002362. Antenna_beta.
    IPR023623. Antenna_beta_CS.
    [Graphical view]
    PfamiPF00556. LHC. 1 hit.
    [Graphical view]
    PIRSFiPIRSF002900. Antenna_beta. 1 hit.
    PRINTSiPR00674. LIGHTHARVSTB.
    SUPFAMiSSF56918. SSF56918. 1 hit.
    PROSITEiPS00969. ANTENNA_COMP_BETA. 1 hit.
    [Graphical view]

    Sequencei

    Sequence statusi: Complete.

    P07368-1 [UniParc]FASTAAdd to Basket

    « Hide

    MTDDKAGPSG LSLKEAEEIH SYLIDGTRVF GAMALVAHIL SAIATPWLG    49
    Length:49
    Mass (Da):5,155
    Last modified:July 1, 1989 - v2
    Checksum:i6CDDDE07B396211B
    GO

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    K02337 Genomic DNA. Translation: AAA26132.1.
    M28510 Genomic DNA. Translation: AAA26161.1.
    PIRiA21901. LBRF8C.

    Cross-referencesi

    Sequence databases

    Select the link destinations:
    EMBL
    GenBank
    DDBJ
    Links Updated
    K02337 Genomic DNA. Translation: AAA26132.1 .
    M28510 Genomic DNA. Translation: AAA26161.1 .
    PIRi A21901. LBRF8C.

    3D structure databases

    ProteinModelPortali P07368.
    SMRi P07368. Positions 11-48.
    ModBasei Search...
    MobiDBi Search...

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Phylogenomic databases

    HOGENOMi HOG000230332.

    Family and domain databases

    InterProi IPR000066. Antenna_a/b.
    IPR002362. Antenna_beta.
    IPR023623. Antenna_beta_CS.
    [Graphical view ]
    Pfami PF00556. LHC. 1 hit.
    [Graphical view ]
    PIRSFi PIRSF002900. Antenna_beta. 1 hit.
    PRINTSi PR00674. LIGHTHARVSTB.
    SUPFAMi SSF56918. SSF56918. 1 hit.
    PROSITEi PS00969. ANTENNA_COMP_BETA. 1 hit.
    [Graphical view ]
    ProtoNeti Search...

    Publicationsi

    1. "Light-harvesting II (B800-B850 complex) structural genes from Rhodopseudomonas capsulata."
      Youvan D.C., Ismail S.
      Proc. Natl. Acad. Sci. U.S.A. 82:58-62(1985) [PubMed] [Europe PMC] [Abstract]
      Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    2. "Genes downstream from pucB and pucA are essential for formation of the B800-850 complex of Rhodobacter capsulatus."
      Tichy H.V., Oberle B., Stiehle H., Schiltz E., Drews G.
      J. Bacteriol. 171:4914-4922(1989) [PubMed] [Europe PMC] [Abstract]
      Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
    3. "The complete amino-acid sequence of the small bacteriochlorophyll-binding polypeptide B800-850-beta from light-harvesting complex B800-850 of Rhodopseudomonas capsulata."
      Tadros M.H., Frank R., Drews G.
      FEBS Lett. 183:91-94(1985)
      Cited for: PROTEIN SEQUENCE, FORMYLATION AT MET-1.

    Entry informationi

    Entry nameiLHB2_RHOCA
    AccessioniPrimary (citable) accession number: P07368
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: April 1, 1988
    Last sequence update: July 1, 1989
    Last modified: October 1, 2014
    This is version 84 of the entry and version 2 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)
    Annotation programProkaryotic Protein Annotation Program

    Miscellaneousi

    Keywords - Technical termi

    Direct protein sequencing

    Documents

    1. SIMILARITY comments
      Index of protein domains and families

    External Data

    Dasty 3