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P26789

- LHA4_RHOAC

UniProt

P26789 - LHA4_RHOAC

Protein

Light-harvesting protein B-800/850 alpha chain

Gene
N/A
Organism
Rhodoblastus acidophilus (Rhodopseudomonas acidophila)
Status
Reviewed - Annotation score: 3 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 bindingi31 – 311Magnesium (bacteriochlorophyll axial ligand)

    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 alpha chain
    Alternative name(s):
    Antenna pigment protein alpha chain
    OrganismiRhodoblastus acidophilus (Rhodopseudomonas acidophila)
    Taxonomic identifieri1074 [NCBI]
    Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhizobialesBradyrhizobiaceaeRhodoblastus

    Subcellular locationi

    GO - Cellular componenti

    1. integral component of membrane Source: UniProtKB-KW
    2. organelle inner membrane Source: InterPro
    3. plasma membrane Source: UniProtKB-SubCell
    4. 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 – 5353Light-harvesting protein B-800/850 alpha chainPRO_0000099787Add
    BLAST

    Interactioni

    Subunit structurei

    The core complex is formed by 9 alpha and 9 beta chains that bind bacteriochlorophyll and carotenoid molecules, and is disposed around the reaction center. The non-pigmented gamma chains may constitute additional components By similarity.By similarity

    Structurei

    Secondary structure

    1
    53
    Legend: HelixTurnBeta strand
    Show more details
    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Helixi6 – 83
    Helixi12 – 3726
    Helixi40 – 467

    3D structure databases

    Select the link destinations:
    PDBe
    RCSB PDB
    PDBj
    Links Updated
    EntryMethodResolution (Å)ChainPositionsPDBsum
    1KZUX-ray2.50A/D/G1-53[»]
    1NKZX-ray2.00A/C/E1-53[»]
    2FKWX-ray2.45A/C/E/G/I/K/M/O/R1-53[»]
    ProteinModelPortaliP26789.
    SMRiP26789. Positions 2-53.
    ModBaseiSearch...
    MobiDBiSearch...

    Miscellaneous databases

    EvolutionaryTraceiP26789.

    Topological domain

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Topological domaini1 – 1313CytoplasmicAdd
    BLAST
    Topological domaini35 – 5319PeriplasmicAdd
    BLAST

    Transmembrane

    Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
    Transmembranei14 – 3421HelicalAdd
    BLAST

    Family & Domainsi

    Keywords - Domaini

    Transmembrane, Transmembrane helix

    Family and domain databases

    Gene3Di4.10.220.20. 1 hit.
    InterProiIPR000066. Antenna_a/b.
    IPR018332. Antenna_alpha.
    IPR002361. Antenna_alpha_CS.
    [Graphical view]
    PfamiPF00556. LHC. 1 hit.
    [Graphical view]
    PRINTSiPR00673. LIGHTHARVSTA.
    SUPFAMiSSF56918. SSF56918. 1 hit.
    PROSITEiPS00968. ANTENNA_COMP_ALPHA. 1 hit.
    [Graphical view]

    Sequencei

    Sequence statusi: Complete.

    P26789-1 [UniParc]FASTAAdd to Basket

    « Hide

    MNQGKIWTVV NPAIGIPALL GSVTVIAILV HLAILSHTTW FPAYWQGGVK   50
    KAA 53
    Length:53
    Mass (Da):5,654
    Last modified:August 1, 1992 - v1
    Checksum:i210F7597804C2E7F
    GO

    Sequence databases

    PIRiS06365.

    Cross-referencesi

    Sequence databases

    PIRi S06365.

    3D structure databases

    Select the link destinations:
    PDBe
    RCSB PDB
    PDBj
    Links Updated
    Entry Method Resolution (Å) Chain Positions PDBsum
    1KZU X-ray 2.50 A/D/G 1-53 [» ]
    1NKZ X-ray 2.00 A/C/E 1-53 [» ]
    2FKW X-ray 2.45 A/C/E/G/I/K/M/O/R 1-53 [» ]
    ProteinModelPortali P26789.
    SMRi P26789. Positions 2-53.
    ModBasei Search...
    MobiDBi Search...

    Protocols and materials databases

    Structural Biology Knowledgebase Search...

    Miscellaneous databases

    EvolutionaryTracei P26789.

    Family and domain databases

    Gene3Di 4.10.220.20. 1 hit.
    InterProi IPR000066. Antenna_a/b.
    IPR018332. Antenna_alpha.
    IPR002361. Antenna_alpha_CS.
    [Graphical view ]
    Pfami PF00556. LHC. 1 hit.
    [Graphical view ]
    PRINTSi PR00673. LIGHTHARVSTA.
    SUPFAMi SSF56918. SSF56918. 1 hit.
    PROSITEi PS00968. ANTENNA_COMP_ALPHA. 1 hit.
    [Graphical view ]
    ProtoNeti Search...

    Publicationsi

    1. "The complete amino acid sequences of the B800-850 antenna polypeptides from Rhodopseudomonas acidophila strain 7750."
      Bissig I., Brunisholz R.A., Suter F., Cogdell R.J., Zuber H.
      Z. Naturforsch. C 43:77-83(1988) [PubMed] [Europe PMC] [Abstract]
      Cited for: PROTEIN SEQUENCE.
      Strain: DSM 141 / 7750 / LMG 4302.
    2. Brunisholz R.A., Bissig I., Niederer E., Suter F., Zuber H.
      (In) Biggins J. (eds.); Progress in photosynthesis research, pp.II.1:13-16, Martinus Nijhoff, The Hague (1987)
      Cited for: PROTEIN SEQUENCE.
      Strain: DSM 141 / 7750 / LMG 4302.
    3. "Pigment-pigment interactions and energy transfer in the antenna complex of the photosynthetic bacterium Rhodopseudomonas acidophila."
      Freer A., Prince S., Sauer K., Papiz M., Hawthornthwaite-Lawless A., McDermott G., Cogdell R., Isaacs N.W.
      Structure 4:449-462(1996) [PubMed] [Europe PMC] [Abstract]
      Cited for: X-RAY CRYSTALLOGRAPHY (2.5 ANGSTROMS) IN COMPLEX WITH BACTERIOCHLOROPHYLL AND CAROTENOID, SUBUNIT.
    4. "Apoprotein structure in the LH2 complex from Rhodopseudomonas acidophila strain 10050: modular assembly and protein pigment interactions."
      Prince S.M., Papiz M.Z., Freer A.A., McDermott G., Hawthornthwaite-Lawless A.M., Cogdell R.J., Isaacs N.W.
      J. Mol. Biol. 268:412-423(1997) [PubMed] [Europe PMC] [Abstract]
      Cited for: X-RAY CRYSTALLOGRAPHY (2.5 ANGSTROMS) IN COMPLEX WITH BACTERIOCHLOROPHYLL AND CAROTENOID, SUBUNIT.
      Strain: 10050.

    Entry informationi

    Entry nameiLHA4_RHOAC
    AccessioniPrimary (citable) accession number: P26789
    Entry historyi
    Integrated into UniProtKB/Swiss-Prot: August 1, 1992
    Last sequence update: August 1, 1992
    Last modified: October 1, 2014
    This is version 81 of the entry and version 1 of the sequence. [Complete history]
    Entry statusiReviewed (UniProtKB/Swiss-Prot)
    Annotation programProkaryotic 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

    External Data

    Dasty 3