LHB_CHLAA
ID LHB_CHLAA Reviewed; 53 AA.
AC P09927; A9WEY8;
DT 01-JUL-1989, integrated into UniProtKB/Swiss-Prot.
DT 01-JUL-1989, sequence version 1.
DT 03-AUG-2022, entry version 128.
DE RecName: Full=Light-harvesting protein B-808/866 beta chain;
DE AltName: Full=Antenna pigment protein beta chain;
DE AltName: Full=Bacteriochlorophyll a-binding protein;
GN Name=puf2B; OrderedLocusNames=Caur_2091;
OS Chloroflexus aurantiacus (strain ATCC 29366 / DSM 635 / J-10-fl).
OC Bacteria; Chloroflexi; Chloroflexia; Chloroflexales; Chloroflexineae;
OC Chloroflexaceae; Chloroflexus.
OX NCBI_TaxID=324602;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=7535995; DOI=10.1007/bf00381786;
RA Watanabe Y., Feick R.G., Shiozawa J.A.;
RT "Cloning and sequencing of the genes encoding the light-harvesting B806-866
RT polypeptides and initial studies on the transcriptional organization of
RT puf2B, puf2A and puf2C in Chloroflexus aurantiacus.";
RL Arch. Microbiol. 163:124-130(1995).
RN [2]
RP PROTEIN SEQUENCE, AND FORMYLATION AT MET-1.
RX DOI=10.1016/0014-5793(87)81335-2;
RA Wechsler T.D., Brunisholz R.A., Frank G., Suter F., Zuber H.;
RT "The complete amino acid sequence of the antenna polypeptide B806-866-beta
RT from the cytoplasmic membrane of the green bacterium Chloroflexus
RT aurantiacus.";
RL FEBS Lett. 210:189-194(1987).
RN [3]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 29366 / DSM 635 / J-10-fl;
RX PubMed=21714912; DOI=10.1186/1471-2164-12-334;
RA Tang K.H., Barry K., Chertkov O., Dalin E., Han C.S., Hauser L.J.,
RA Honchak B.M., Karbach L.E., Land M.L., Lapidus A., Larimer F.W.,
RA Mikhailova N., Pitluck S., Pierson B.K., Blankenship R.E.;
RT "Complete genome sequence of the filamentous anoxygenic phototrophic
RT bacterium Chloroflexus aurantiacus.";
RL BMC Genomics 12:334-334(2011).
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 membrane; Single-pass type II membrane
CC protein.
CC -!- SIMILARITY: Belongs to the antenna complex beta subunit family.
CC {ECO:0000305}.
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DR EMBL; X73899; CAA52104.1; -; Genomic_DNA.
DR EMBL; CP000909; ABY35303.1; -; Genomic_DNA.
DR PIR; A25857; A25857.
DR RefSeq; WP_012257957.1; NC_010175.1.
DR RefSeq; YP_001635692.1; NC_010175.1.
DR AlphaFoldDB; P09927; -.
DR SMR; P09927; -.
DR STRING; 324602.Caur_2091; -.
DR EnsemblBacteria; ABY35303; ABY35303; Caur_2091.
DR KEGG; cau:Caur_2091; -.
DR PATRIC; fig|324602.8.peg.2371; -.
DR eggNOG; ENOG5030UXX; Bacteria.
DR HOGENOM; CLU_3029560_0_0_0; -.
DR OMA; IVVKTIY; -.
DR Proteomes; UP000002008; Chromosome.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
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; 1.20.5.250; -; 1.
DR InterPro; IPR000066; Antenna_a/b.
DR InterPro; IPR023623; Antenna_beta_CS.
DR InterPro; IPR023624; Antenna_beta_dom_sf.
DR InterPro; IPR002362; LHB-1/5.
DR InterPro; IPR035889; Light-harvesting_complex.
DR Pfam; PF00556; LHC; 1.
DR PIRSF; PIRSF002900; Antenna_beta; 1.
DR SUPFAM; SSF56918; SSF56918; 1.
DR PROSITE; PS00969; ANTENNA_COMP_BETA; 1.
PE 1: Evidence at protein level;
KW Antenna complex; Bacteriochlorophyll; Cell membrane; Chlorophyll;
KW Chromophore; Direct protein sequencing; Formylation;
KW Light-harvesting polypeptide; Magnesium; Membrane; Metal-binding;
KW Reference proteome; Transmembrane; Transmembrane helix.
FT CHAIN 1..53
FT /note="Light-harvesting protein B-808/866 beta chain"
FT /id="PRO_0000099809"
FT TOPO_DOM 1..25
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 26..48
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TOPO_DOM 49..53
FT /note="Periplasmic"
FT /evidence="ECO:0000255"
FT BINDING 24
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"
FT BINDING 42
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"
FT MOD_RES 1
FT /note="N-formylmethionine"
FT /evidence="ECO:0000269|Ref.2"
SQ SEQUENCE 53 AA; 6320 MW; A762563C6F835832 CRC64;
MRDDDDLVPP KWRPLFNNQD WLLHDIVVKS FYGFGVIAAI AHLLVYLWKP WLP
