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Q3J1A3

- LHB1_RHOS4

UniProt

Q3J1A3 - LHB1_RHOS4

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Protein

Light-harvesting protein B-875 beta chain

Gene

pufB

Organism
Rhodobacter sphaeroides (strain ATCC 17023 / 2.4.1 / NCIB 8253 / DSM 158)
Status
Reviewed - Annotation score: 4 out of 5- Experimental evidence at protein leveli

Functioni

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

Sites

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Metal bindingi21 – 211Magnesium (bacteriochlorophyll axial ligand)By similarity
Metal bindingi39 – 391Magnesium (bacteriochlorophyll axial ligand)By similarity

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
Complete GO annotation...

Keywords - Molecular functioni

Light-harvesting polypeptide

Keywords - Ligandi

Bacteriochlorophyll, Chlorophyll, Chromophore, Magnesium, Metal-binding

Enzyme and pathway databases

BioCyciRSPH272943:GJAS-1915-MONOMER.

Names & Taxonomyi

Protein namesi
Recommended name:
Light-harvesting protein B-875 beta chain
Alternative name(s):
Antenna pigment protein beta chain
LH-3A
Gene namesi
Name:pufB
Ordered Locus Names:RHOS4_18630
ORF Names:RSP_6108
OrganismiRhodobacter sphaeroides (strain ATCC 17023 / 2.4.1 / NCIB 8253 / DSM 158)
Taxonomic identifieri272943 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhodobacteralesRhodobacteraceaeRhodobacter
ProteomesiUP000002703: Chromosome 1

Subcellular locationi

GO - Cellular componenti

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

Keywords - Cellular componenti

Antenna complex, Cell inner membrane, Cell membrane, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Initiator methioninei1 – 11RemovedBy similarity
Chaini2 – 4948Light-harvesting protein B-875 beta chainPRO_0000099834Add
BLAST

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.

Protein-protein interaction databases

STRINGi272943.RSP_6108.

Structurei

3D structure databases

Select the link destinations:
PDBe
RCSB PDB
PDBj
Links Updated
EntryMethodResolution (Å)ChainPositionsPDBsum
4JC9X-ray7.784/6/8/9/E/G/I/K/O/Q/S/U/W/Y1-49[»]
4JCBX-ray7.784/6/8/9/E/G/I/K/O/Q/S/U/W/Y1-49[»]
ProteinModelPortaliQ3J1A3.
SMRiQ3J1A3. Positions 2-49.
ModBaseiSearch...
MobiDBiSearch...

Topological domain

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini2 – 2726CytoplasmicBy similarityAdd
BLAST
Topological domaini46 – 494PeriplasmicBy similarity

Transmembrane

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Transmembranei28 – 4518Helical; Signal-anchor for type II membrane proteinBy similarityAdd
BLAST

Family & Domainsi

Sequence similaritiesi

Belongs to the antena complex beta subunit family.Curated

Keywords - Domaini

Signal-anchor, Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiNOG84229.
HOGENOMiHOG000230332.
KOiK08927.
OMAiTASRIHP.
OrthoDBiEOG6DZF4S.
PhylomeDBiQ3J1A3.

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.

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

Q3J1A3-1 [UniParc]FASTAAdd to Basket

« Hide

        10         20         30         40
MADKSDLGYT GLTDEQAQEL HSVYMSGLWL FSAVAIVAHL AVYIWRPWF
Length:49
Mass (Da):5,588
Last modified:January 23, 2007 - v3
Checksum:i8C5B2F707B557582
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
M15105 Genomic DNA. Translation: AAA26166.1.
AF195122 Genomic DNA. Translation: AAF24302.1.
CP000143 Genomic DNA. Translation: ABA79431.1.
PIRiB27760. LBRFAS.
RefSeqiYP_353332.1. NC_007493.2.

Genome annotation databases

EnsemblBacteriaiABA79431; ABA79431; RSP_6108.
GeneIDi3719401.
KEGGirsp:RSP_6108.
PATRICi23153654. VBIRhoSph57909_2202.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
M15105 Genomic DNA. Translation: AAA26166.1 .
AF195122 Genomic DNA. Translation: AAF24302.1 .
CP000143 Genomic DNA. Translation: ABA79431.1 .
PIRi B27760. LBRFAS.
RefSeqi YP_353332.1. NC_007493.2.

3D structure databases

Select the link destinations:
PDBe
RCSB PDB
PDBj
Links Updated
Entry Method Resolution (Å) Chain Positions PDBsum
4JC9 X-ray 7.78 4/6/8/9/E/G/I/K/O/Q/S/U/W/Y 1-49 [» ]
4JCB X-ray 7.78 4/6/8/9/E/G/I/K/O/Q/S/U/W/Y 1-49 [» ]
ProteinModelPortali Q3J1A3.
SMRi Q3J1A3. Positions 2-49.
ModBasei Search...
MobiDBi Search...

Protein-protein interaction databases

STRINGi 272943.RSP_6108.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

EnsemblBacteriai ABA79431 ; ABA79431 ; RSP_6108 .
GeneIDi 3719401.
KEGGi rsp:RSP_6108.
PATRICi 23153654. VBIRhoSph57909_2202.

Phylogenomic databases

eggNOGi NOG84229.
HOGENOMi HOG000230332.
KOi K08927.
OMAi TASRIHP.
OrthoDBi EOG6DZF4S.
PhylomeDBi Q3J1A3.

Enzyme and pathway databases

BioCyci RSPH272943:GJAS-1915-MONOMER.

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

« Hide 'large scale' publications
  1. "DNA sequence and in vitro expression of the B875 light-harvesting polypeptides of Rhodobacter sphaeroides."
    Kiley P.J., Donohue T.J., Havelka W.A., Kaplan S.
    J. Bacteriol. 169:742-750(1987) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
  2. "DNA sequence analysis of the photosynthesis region of Rhodobacter sphaeroides 2.4.1."
    Choudhary M., Kaplan S.
    Nucleic Acids Res. 28:862-867(2000) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [GENOMIC DNA].
  3. "Complete sequence of chromosome 1 of Rhodobacter sphaeroides 2.4.1."
    Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T., Hammon N., Israni S., Pitluck S., Richardson P., Mackenzie C., Choudhary M., Larimer F., Hauser L.J., Land M., Donohue T.J., Kaplan S.
    Submitted (SEP-2005) to the EMBL/GenBank/DDBJ databases
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
    Strain: ATCC 17023 / 2.4.1 / NCIB 8253 / DSM 158.

Entry informationi

Entry nameiLHB1_RHOS4
AccessioniPrimary (citable) accession number: Q3J1A3
Secondary accession number(s): P02951
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 21, 1986
Last sequence update: January 23, 2007
Last modified: October 29, 2014
This is version 61 of the entry and version 3 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

3D-structure, Complete proteome, Reference proteome

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