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Protein

Light-harvesting protein B800/830/1020 beta-1 chain

Gene
N/A
Organism
Halorhodospira halochloris (Ectothiorhodospira halochloris)
Status
Reviewed-Annotation score: Annotation score: 3 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 bindingi19 – 191Magnesium (bacteriochlorophyll axial ligand)Sequence Analysis
Metal bindingi37 – 371Magnesium (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
Complete GO annotation...

Keywords - Molecular functioni

Light-harvesting polypeptide

Keywords - Ligandi

Bacteriochlorophyll, Chlorophyll, Chromophore, Magnesium, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Light-harvesting protein B800/830/1020 beta-1 chain
Alternative name(s):
Antenna pigment protein beta-1 chain
EHS-beta-1
OrganismiHalorhodospira halochloris (Ectothiorhodospira halochloris)
Taxonomic identifieri1052 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaGammaproteobacteriaChromatialesEctothiorhodospiraceaeHalorhodospira

Subcellular locationi

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini1 – 2020CytoplasmicSequence AnalysisAdd
BLAST
Transmembranei21 – ›40›20HelicalSequence AnalysisAdd
BLAST

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
Complete GO annotation...

Keywords - Cellular componenti

Antenna complex, Cell inner membrane, Cell membrane, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – ›40›40Light-harvesting protein B800/830/1020 beta-1 chainPRO_0000099812Add
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.

Family & Domainsi

Sequence similaritiesi

Belongs to the antena complex beta subunit family.Curated

Keywords - Domaini

Transmembrane, Transmembrane helix

Family and domain databases

InterProiIPR000066. Antenna_a/b.
[Graphical view]
SUPFAMiSSF56918. SSF56918. 1 hit.

Sequencei

Sequence statusi: Fragment.

P80106-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40
ANDIRPLRDF EDEEAQEFHQ AAVQAFFLYV AVAFVAHLPV
Length:40
Mass (Da):4,575
Last modified:January 31, 1994 - v1
Checksum:i63536682D22B5D7C
GO

Experimental Info

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Non-terminal residuei40 – 401

Sequence databases

PIRiS23286.

Cross-referencesi

Sequence databases

PIRiS23286.

3D structure databases

ModBaseiSearch...
MobiDBiSearch...

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Family and domain databases

InterProiIPR000066. Antenna_a/b.
[Graphical view]
SUPFAMiSSF56918. SSF56918. 1 hit.
ProtoNetiSearch...

Publicationsi

  1. "The primary structure of the antenna polypeptides of Ectothiorhodospira halochloris and Ectothiorhodospira halophila. Four core-type antenna polypeptides in E. halochloris and E. halophila."
    Wagner-Huber R., Brunisholz R.A., Bissig I., Frank G., Suter F., Zuber H.
    Eur. J. Biochem. 205:917-925(1991) [PubMed] [Europe PMC] [Abstract]
    Cited for: PROTEIN SEQUENCE.
    Strain: DSM 1059.

Entry informationi

Entry nameiLHB1_HALHR
AccessioniPrimary (citable) accession number: P80106
Entry historyi
Integrated into UniProtKB/Swiss-Prot: January 31, 1994
Last sequence update: January 31, 1994
Last modified: March 31, 2015
This is version 76 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

Direct protein sequencing

Documents

  1. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into Uniref entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.