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Protein

Light-harvesting protein B-800/850 beta 1 chain

Gene

B1

Organism
Phaeospirillum molischianum (Rhodospirillum molischianum)
Status
Reviewed-Annotation score: 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)DescriptionActionsGraphical viewLength
Metal bindingi18Magnesium (bacteriochlorophyll axial ligand)1
Metal bindingi36Magnesium (bacteriochlorophyll axial ligand)1

GO - Molecular functioni

GO - Biological processi

Keywordsi

Molecular functionLight-harvesting polypeptide
LigandBacteriochlorophyll, Chlorophyll, Chromophore, Magnesium, Metal-binding

Names & Taxonomyi

Protein namesi
Recommended name:
Light-harvesting protein B-800/850 beta 1 chain
Alternative name(s):
Antenna pigment protein beta 1 chain
Gene namesi
Name:B1
OrganismiPhaeospirillum molischianum (Rhodospirillum molischianum)
Taxonomic identifieri1083 [NCBI]
Taxonomic lineageiBacteriaProteobacteriaAlphaproteobacteriaRhodospirillalesRhodospirillaceaePhaeospirillum

Subcellular locationi

Topology

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Topological domaini2 – 19CytoplasmicAdd BLAST18
Transmembranei20 – 42HelicalAdd BLAST23
Topological domaini43 – 46Periplasmic4

GO - Cellular componenti

Keywords - Cellular componenti

Antenna complex, Cell inner membrane, Cell membrane, Membrane

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Initiator methionineiRemoved1 Publication
ChainiPRO_00000998272 – 46Light-harvesting protein B-800/850 beta 1 chainAdd BLAST45

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.

Structurei

Secondary structure

146
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details
Feature keyPosition(s)DescriptionActionsGraphical viewLength
Beta strandi6 – 8Combined sources3
Helixi11 – 42Combined sources32

3D structure databases

Select the link destinations:
PDBei
RCSB PDBi
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
1LGHX-ray2.40B/E/H/K2-46[»]
ProteinModelPortaliP95673.
SMRiP95673.
ModBaseiSearch...
MobiDBiSearch...

Miscellaneous databases

EvolutionaryTraceiP95673.

Family & Domainsi

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Family and domain databases

InterProiView protein in InterPro
IPR000066. Antenna_a/b.
IPR002362. Antenna_beta.
IPR023623. Antenna_beta_CS.
PfamiView protein in Pfam
PF00556. LHC. 1 hit.
PIRSFiPIRSF002900. Antenna_beta. 1 hit.
PRINTSiPR00674. LIGHTHARVSTB.
SUPFAMiSSF56918. SSF56918. 1 hit.
PROSITEiView protein in PROSITE
PS00969. ANTENNA_COMP_BETA. 1 hit.

Sequencei

Sequence statusi: Complete.

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

P95673-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40 
MAERSLSGLT EEEAIAVHDQ FKTTFSAFII LAAVAHVLVW VWKPWF
Length:46
Mass (Da):5,247
Last modified:January 23, 2007 - v3
Checksum:i4125AEB8D9091A43
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
S82431 Genomic DNA. Translation: AAB46769.1.
PIRiB49290.

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 one 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.

Entry informationi

Entry nameiLHB1_PHAMO
AccessioniPrimary (citable) accession number: P95673
Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 15, 1998
Last sequence update: January 23, 2007
Last modified: May 10, 2017
This is version 96 of the entry and version 3 of the sequence. See 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
  2. SIMILARITY comments
    Index of protein domains and families