UniProtKB - P07368 (LHB2_RHOCA)
Protein
Light-harvesting protein B-800/850 beta chain
Gene
pucB
Organism
Rhodobacter capsulatus (Rhodopseudomonas capsulata)
Status
Functioni
Antenna complexes are light-harvesting systems, which transfer the excitation energy to the reaction centers.
Sites
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Metal bindingi | 20 | Magnesium (bacteriochlorophyll axial ligand)Sequence analysis | 1 | |
Metal bindingi | 38 | Magnesium (bacteriochlorophyll axial ligand)Sequence analysis | 1 |
GO - Molecular functioni
- bacteriochlorophyll binding Source: UniProtKB-KW
- electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity Source: InterPro
- metal ion binding Source: UniProtKB-KW
GO - Biological processi
- photosynthesis, light reaction Source: InterPro
- protein-chromophore linkage Source: UniProtKB-KW
Keywordsi
Molecular function | Light-harvesting polypeptide |
Ligand | Bacteriochlorophyll, Chlorophyll, Chromophore, Magnesium, Metal-binding |
Names & Taxonomyi
Protein namesi | Recommended name: Light-harvesting protein B-800/850 beta chainAlternative name(s): Antenna pigment protein beta chain LH-3B |
Gene namesi | Name:pucB |
Organismi | Rhodobacter capsulatus (Rhodopseudomonas capsulata) |
Taxonomic identifieri | 1061 [NCBI] |
Taxonomic lineagei | Bacteria › Proteobacteria › Alphaproteobacteria › Rhodobacterales › Rhodobacteraceae › Rhodobacter |
Subcellular locationi
Plasma membrane
Plasma Membrane
- plasma membrane Source: UniProtKB-SubCell
Other locations
- integral component of membrane Source: UniProtKB-KW
- plasma membrane light-harvesting complex Source: InterPro
Topology
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Topological domaini | 1 – 21 | CytoplasmicSequence analysisAdd BLAST | 21 | |
Transmembranei | 22 – 44 | HelicalSequence analysisAdd BLAST | 23 | |
Topological domaini | 45 – 49 | PeriplasmicSequence analysis | 5 |
Keywords - Cellular componenti
Antenna complex, Cell inner membrane, Cell membrane, MembranePTM / Processingi
Molecule processing
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
ChainiPRO_0000099823 | 1 – 49 | Light-harvesting protein B-800/850 beta chainAdd BLAST | 49 |
Amino acid modifications
Feature key | Position(s) | DescriptionActions | Graphical view | Length |
---|---|---|---|---|
Modified residuei | 1 | N-formylmethionine; partial1 Publication | 1 |
Keywords - PTMi
FormylationInteractioni
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 antenna complex beta subunit family.Curated
Keywords - Domaini
Transmembrane, Transmembrane helixFamily and domain databases
InterProi | View protein in InterPro IPR000066, Antenna_a/b IPR002362, Antenna_beta IPR023623, Antenna_beta_CS IPR035889, Light-harvesting_complex |
Pfami | View protein in Pfam PF00556, LHC, 1 hit |
PIRSFi | PIRSF002900, Antenna_beta, 1 hit |
PRINTSi | PR00674, LIGHTHARVSTB |
SUPFAMi | SSF56918, SSF56918, 1 hit |
PROSITEi | View protein in PROSITE PS00969, ANTENNA_COMP_BETA, 1 hit |
i Sequence
Sequence statusi: Complete.
P07368-1 [UniParc]FASTAAdd to basket
10 20 30 40
MTDDKAGPSG LSLKEAEEIH SYLIDGTRVF GAMALVAHIL SAIATPWLG
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | K02337 Genomic DNA Translation: AAA26132.1 M28510 Genomic DNA Translation: AAA26161.1 |
PIRi | A21901, LBRF8C |
RefSeqi | WP_013068239.1, NZ_VIBE01000014.1 |
Genome annotation databases
GeneIDi | 57386725 |
Similar proteinsi
Cross-referencesi
Sequence databases
Select the link destinations: EMBLi GenBanki DDBJi Links Updated | K02337 Genomic DNA Translation: AAA26132.1 M28510 Genomic DNA Translation: AAA26161.1 |
PIRi | A21901, LBRF8C |
RefSeqi | WP_013068239.1, NZ_VIBE01000014.1 |
3D structure databases
SMRi | P07368 |
ModBasei | Search... |
Genome annotation databases
GeneIDi | 57386725 |
Family and domain databases
InterProi | View protein in InterPro IPR000066, Antenna_a/b IPR002362, Antenna_beta IPR023623, Antenna_beta_CS IPR035889, Light-harvesting_complex |
Pfami | View protein in Pfam PF00556, LHC, 1 hit |
PIRSFi | PIRSF002900, Antenna_beta, 1 hit |
PRINTSi | PR00674, LIGHTHARVSTB |
SUPFAMi | SSF56918, SSF56918, 1 hit |
PROSITEi | View protein in PROSITE PS00969, ANTENNA_COMP_BETA, 1 hit |
ProtoNeti | Search... |
MobiDBi | Search... |
Entry informationi
Entry namei | LHB2_RHOCA | |
Accessioni | P07368Primary (citable) accession number: P07368 | |
Entry historyi | Integrated into UniProtKB/Swiss-Prot: | April 1, 1988 |
Last sequence update: | July 1, 1989 | |
Last modified: | February 10, 2021 | |
This is version 106 of the entry and version 2 of the sequence. See complete history. | ||
Entry statusi | Reviewed (UniProtKB/Swiss-Prot) | |
Annotation program | Prokaryotic Protein Annotation Program |
Miscellaneousi
Keywords - Technical termi
Direct protein sequencingDocuments
- SIMILARITY comments
Index of protein domains and families