ID   Q3B9U8_OSTTA            Unreviewed;       257 AA.
AC   Q3B9U8;
DT   22-NOV-2005, integrated into UniProtKB/TrEMBL.
DT   22-NOV-2005, sequence version 1.
DT   28-JUN-2023, entry version 106.
DE   RecName: Full=Chlorophyll a-b binding protein, chloroplastic {ECO:0000256|RuleBase:RU363080};
OS   Ostreococcus tauri.
OC   Eukaryota; Viridiplantae; Chlorophyta; Mamiellophyceae; Mamiellales;
OC   Bathycoccaceae; Ostreococcus.
OX   NCBI_TaxID=70448 {ECO:0000313|EMBL:AAY27543.1};
RN   [1] {ECO:0000313|EMBL:AAY27543.1}
RP   NUCLEOTIDE SEQUENCE.
RX   PubMed=16049197; DOI=10.1093/molbev/msi220;
RA   Six C., Worden A.Z., Rodriguez F., Moreau H., Partensky F.;
RT   "New insights into the nature and phylogeny of prasinophyte antenna
RT   proteins: Ostreococcus tauri, a case study.";
RL   Mol. Biol. Evol. 22:2217-2230(2005).
CC   -!- FUNCTION: The light-harvesting complex (LHC) functions as a light
CC       receptor, it captures and delivers excitation energy to photosystems
CC       with which it is closely associated. {ECO:0000256|RuleBase:RU363080}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000256|RuleBase:RU363080}.
CC   -!- SIMILARITY: Belongs to the light-harvesting chlorophyll a/b-binding
CC       (LHC) protein family. {ECO:0000256|RuleBase:RU363080}.
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DR   EMBL; AY954732; AAY27543.1; -; Genomic_DNA.
DR   RefSeq; XP_003083704.1; XM_003083656.1.
DR   AlphaFoldDB; Q3B9U8; -.
DR   OMA; LWYPGAI; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0009522; C:photosystem I; IEA:UniProtKB-KW.
DR   GO; GO:0009523; C:photosystem II; IEA:UniProtKB-KW.
DR   GO; GO:0016168; F:chlorophyll binding; IEA:UniProtKB-KW.
DR   GO; GO:0009765; P:photosynthesis, light harvesting; IEA:InterPro.
DR   Gene3D; 1.10.3460.10; Chlorophyll a/b binding protein domain; 1.
DR   InterPro; IPR001344; Chloro_AB-bd_pln.
DR   InterPro; IPR022796; Chloroa_b-bind.
DR   PANTHER; PTHR21649:SF6; CHLOROPHYLL A-B BINDING PROTEIN CP29.1, CHLOROPLASTIC; 1.
DR   PANTHER; PTHR21649; CHLOROPHYLL A/B BINDING PROTEIN; 1.
DR   Pfam; PF00504; Chloroa_b-bind; 1.
DR   SUPFAM; SSF103511; Chlorophyll a-b binding protein; 1.
PE   3: Inferred from homology;
KW   Chlorophyll {ECO:0000256|ARBA:ARBA00022494, ECO:0000256|PIRSR:PIRSR601344-
KW   1}; Chloroplast {ECO:0000256|RuleBase:RU363080};
KW   Chromophore {ECO:0000256|ARBA:ARBA00022991, ECO:0000256|RuleBase:RU363080};
KW   Photosynthesis {ECO:0000256|ARBA:ARBA00022531,
KW   ECO:0000256|RuleBase:RU363080};
KW   Photosystem I {ECO:0000256|RuleBase:RU363080};
KW   Photosystem II {ECO:0000256|RuleBase:RU363080};
KW   Plastid {ECO:0000256|ARBA:ARBA00022640, ECO:0000256|RuleBase:RU363080};
KW   Thylakoid {ECO:0000256|RuleBase:RU363080}.
FT   REGION          1..40
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   BINDING         126
FT                   /ligand="chlorophyll a"
FT                   /ligand_id="ChEBI:CHEBI:58416"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR601344-1"
FT   BINDING         129
FT                   /ligand="chlorophyll a"
FT                   /ligand_id="ChEBI:CHEBI:58416"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR601344-1"
FT   BINDING         131
FT                   /ligand="chlorophyll b"
FT                   /ligand_id="ChEBI:CHEBI:61721"
FT                   /ligand_label="1"
FT                   /ligand_part="Mg"
FT                   /ligand_part_id="ChEBI:CHEBI:25107"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR601344-1"
FT   BINDING         188
FT                   /ligand="chlorophyll b"
FT                   /ligand_id="ChEBI:CHEBI:61721"
FT                   /ligand_label="1"
FT                   /ligand_part="Mg"
FT                   /ligand_part_id="ChEBI:CHEBI:25107"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR601344-1"
FT   BINDING         195
FT                   /ligand="chlorophyll b"
FT                   /ligand_id="ChEBI:CHEBI:61721"
FT                   /ligand_label="1"
FT                   /ligand_part="Mg"
FT                   /ligand_part_id="ChEBI:CHEBI:25107"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR601344-1"
FT   BINDING         228
FT                   /ligand="chlorophyll a"
FT                   /ligand_id="ChEBI:CHEBI:58416"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR601344-1"
FT   BINDING         233
FT                   /ligand="chlorophyll a"
FT                   /ligand_id="ChEBI:CHEBI:58416"
FT                   /ligand_label="1"
FT                   /evidence="ECO:0000256|PIRSR:PIRSR601344-1"
SQ   SEQUENCE   257 AA;  27779 MW;  8B2B7B07024D5ABC CRC64;
     MFKSKAPTKQ VAVKKAPVKT AVKKTARPVR KGPAPKAGDE CLWRPGAVRP AWLDGSLPGD
     RGFDPFGLGK PAEYLQFDLD ALDGSAARNP SGNVIGKLKK ADSKPKARTI VPYDEAFDIM
     RFRECELLHS RWAMLGLVGA AAAEAATGIT WADAGKIELE QPQYLGFPIQ LTVTQLTIIE
     VLAMGYLEIA RSAELDQNKR MYPGGAFDPL GYVAKADAQE EFRLKTAELK HGRLAMAGML
     IISIEAATGR GTLPGSW
//