LHA2_RHOPA
ID LHA2_RHOPA Reviewed; 66 AA.
AC P35102;
DT 01-FEB-1994, integrated into UniProtKB/Swiss-Prot.
DT 01-FEB-1994, sequence version 1.
DT 03-AUG-2022, entry version 118.
DE RecName: Full=Light-harvesting protein B-800-850 alpha chain B;
DE Short=LH II-B alpha;
DE AltName: Full=Antenna pigment protein alpha chain B;
GN Name=pucAB; OrderedLocusNames=RPA4292;
OS Rhodopseudomonas palustris (strain ATCC BAA-98 / CGA009).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Hyphomicrobiales;
OC Bradyrhizobiaceae; Rhodopseudomonas.
OX NCBI_TaxID=258594;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND PROTEIN SEQUENCE OF 1-9.
RC STRAIN=1E5;
RX PubMed=2670551; DOI=10.1002/j.1460-2075.1989.tb03509.x;
RA Tadros M.H., Waterkamp K.;
RT "Multiple copies of the coding regions for the light-harvesting B800-850
RT alpha- and beta-polypeptides are present in the Rhodopseudomonas palustris
RT genome.";
RL EMBO J. 8:1303-1308(1989).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-98 / CGA009;
RX PubMed=14704707; DOI=10.1038/nbt923;
RA Larimer F.W., Chain P., Hauser L., Lamerdin J.E., Malfatti S., Do L.,
RA Land M.L., Pelletier D.A., Beatty J.T., Lang A.S., Tabita F.R.,
RA Gibson J.L., Hanson T.E., Bobst C., Torres y Torres J.L., Peres C.,
RA Harrison F.H., Gibson J., Harwood C.S.;
RT "Complete genome sequence of the metabolically versatile photosynthetic
RT bacterium Rhodopseudomonas palustris.";
RL Nat. Biotechnol. 22:55-61(2004).
RN [3]
RP PROTEIN SEQUENCE OF 1-56.
RC STRAIN=2.6.1 / French;
RA Brunisholz R.A., Evans M.B., Cogdell R.J., Frank G., Zuber H.;
RL (In) Baltscheffsky M. (eds.);
RL Current research in photosynthesis, pp.2:61-64, Kluwer Academic Publishers,
RL Dordrecht (1990).
CC -!- FUNCTION: Antenna complexes are light-harvesting systems, which
CC transfer the excitation energy to the reaction centers.
CC -!- SUBUNIT: The core complex is formed by different alpha and beta chains,
CC binding bacteriochlorophyll molecules, and arranged most probably in
CC tetrameric structures disposed around the reaction center. The non-
CC pigmented gamma chains may constitute additional components.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane; Single-pass type II membrane
CC protein.
CC -!- SIMILARITY: Belongs to the antenna complex alpha subunit family.
CC {ECO:0000305}.
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DR EMBL; X64957; CAA46120.1; -; Genomic_DNA.
DR EMBL; BX572606; CAE29733.1; -; Genomic_DNA.
DR RefSeq; WP_011159826.1; NC_005296.1.
DR AlphaFoldDB; P35102; -.
DR SMR; P35102; -.
DR STRING; 258594.RPA4292; -.
DR PRIDE; P35102; -.
DR EnsemblBacteria; CAE29733; CAE29733; RPA4292.
DR GeneID; 66895421; -.
DR KEGG; rpa:RPA4292; -.
DR eggNOG; ENOG5033EHH; Bacteria.
DR HOGENOM; CLU_202473_0_0_5; -.
DR OMA; SHTTWFP; -.
DR PhylomeDB; P35102; -.
DR BioCyc; RPAL258594:TX73_RS21890-MON; -.
DR Proteomes; UP000001426; Chromosome.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0019866; C:organelle inner membrane; IEA:InterPro.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0030077; C:plasma membrane light-harvesting complex; IEA:InterPro.
DR GO; GO:0042314; F:bacteriochlorophyll binding; IEA:UniProtKB-KW.
DR GO; GO:0045156; F:electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0019684; P:photosynthesis, light reaction; IEA:InterPro.
DR Gene3D; 4.10.220.20; -; 1.
DR InterPro; IPR000066; Antenna_a/b.
DR InterPro; IPR018332; Antenna_alpha.
DR InterPro; IPR002361; Antenna_alpha_CS.
DR InterPro; IPR035889; Light-harvesting_complex.
DR Pfam; PF00556; LHC; 1.
DR PRINTS; PR00673; LIGHTHARVSTA.
DR SUPFAM; SSF56918; SSF56918; 1.
DR PROSITE; PS00968; ANTENNA_COMP_ALPHA; 1.
PE 1: Evidence at protein level;
KW Antenna complex; Bacteriochlorophyll; Cell inner membrane; Cell membrane;
KW Chlorophyll; Chromophore; Direct protein sequencing;
KW Light-harvesting polypeptide; Magnesium; Membrane; Metal-binding;
KW Reference proteome; Transmembrane; Transmembrane helix.
FT CHAIN 1..66
FT /note="Light-harvesting protein B-800-850 alpha chain B"
FT /id="PRO_0000099797"
FT TOPO_DOM 1..11
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 12..35
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TOPO_DOM 36..66
FT /note="Periplasmic"
FT /evidence="ECO:0000255"
FT BINDING 31
FT /ligand="a bacteriochlorophyll"
FT /ligand_id="ChEBI:CHEBI:38201"
FT /ligand_part="Mg"
FT /ligand_part_id="ChEBI:CHEBI:25107"
FT /note="axial binding residue"
FT /evidence="ECO:0000255"
SQ SEQUENCE 66 AA; 6824 MW; 9FBB5CAF99D89308 CRC64;
MNQGRIWTVV NPGVGLPLLL GSVTVIAILV HYAVLSNTTW FPKYWNGATV AAPAAAPAPA
APAAKK
