LHB2_MAGML
ID LHB2_MAGML Reviewed; 46 AA.
AC P95674;
DT 15-JUL-1998, integrated into UniProtKB/Swiss-Prot.
DT 23-JAN-2007, sequence version 3.
DT 03-AUG-2022, entry version 89.
DE RecName: Full=Light-harvesting protein B-800/850 beta 2 chain;
DE AltName: Full=Antenna pigment protein beta 2 chain;
GN Name=B2;
OS Magnetospirillum molischianum (Rhodospirillum molischianum).
OC Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC Rhodospirillaceae; Magnetospirillum.
OX NCBI_TaxID=1083;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND PROTEIN SEQUENCE OF N-TERMINUS.
RC STRAIN=DSM 119 / LMG 4353 / Pfennig 3660;
RX PubMed=8695630; DOI=10.1016/0005-2728(96)00017-5;
RA Germeroth L., Reilaender H., Michel H.;
RT "Molecular cloning, DNA sequence and transcriptional analysis of the
RT Rhodospirillum molischianum B800/850 light-harvesting genes.";
RL Biochim. Biophys. Acta 1275:145-150(1996).
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.
CC -!- SUBCELLULAR LOCATION: Cell inner 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; S82431; AAB46771.1; -; Genomic_DNA.
DR AlphaFoldDB; P95674; -.
DR SMR; P95674; -.
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 PRINTS; PR00674; LIGHTHARVSTB.
DR SUPFAM; SSF56918; SSF56918; 1.
DR PROSITE; PS00969; ANTENNA_COMP_BETA; 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 Transmembrane; Transmembrane helix.
FT INIT_MET 1
FT /note="Removed"
FT CHAIN 2..46
FT /note="Light-harvesting protein B-800/850 beta 2 chain"
FT /id="PRO_0000099828"
FT TOPO_DOM 2..25
FT /note="Cytoplasmic"
FT /evidence="ECO:0000255"
FT TRANSMEM 26..46
FT /note="Helical"
FT /evidence="ECO:0000255"
FT BINDING 18
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 BINDING 36
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"
SQ SEQUENCE 46 AA; 5175 MW; D4D354BD895C1A5D CRC64;
MAERSLSGLT EEEAVAVHAQ FQTTFSAFIV LAAVAHVLVW VWKPWF
