ID   CSMA_PROA2              Reviewed;          81 AA.
AC   P15528; B4S526;
DT   01-APR-1990, integrated into UniProtKB/Swiss-Prot.
DT   14-OCT-2008, sequence version 2.
DT   03-AUG-2022, entry version 94.
DE   RecName: Full=Bacteriochlorophyll c-binding protein;
DE            Short=BChl c-binding;
DE   AltName: Full=Chlorosome protein A;
DE   Flags: Precursor;
GN   Name=csmA; OrderedLocusNames=Paes_1960;
OS   Prosthecochloris aestuarii (strain DSM 271 / SK 413).
OC   Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae;
OC   Prosthecochloris.
OX   NCBI_TaxID=290512;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 271 / SK 413;
RG   US DOE Joint Genome Institute;
RA   Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Dalin E., Tice H.,
RA   Bruce D., Goodwin L., Pitluck S., Schmutz J., Larimer F., Land M.,
RA   Hauser L., Kyrpides N., Anderson I., Liu Z., Li T., Zhao F., Overmann J.,
RA   Bryant D.A., Richardson P.;
RT   "Complete sequence of chromosome of Prosthecochloris aestuarii DSM 271.";
RL   Submitted (JUN-2008) to the EMBL/GenBank/DDBJ databases.
RN   [2]
RP   PROTEIN SEQUENCE OF 1-48.
RA   Wagner-Huber R., Brunisholz R., Frank G., Zuber H.;
RT   "The BChlc/e-binding polypeptides from chlorosomes of green photosynthetic
RT   bacteria.";
RL   FEBS Lett. 239:8-12(1988).
CC   -!- FUNCTION: Component of the photosynthetic apparatus. The light
CC       harvesting B740 complex binds bacteriochlorophyll c.
CC   -!- SUBCELLULAR LOCATION: Chlorosome, chlorosome envelope.
CC   -!- SIMILARITY: Belongs to the BChl C/E-binding protein family.
CC       {ECO:0000305}.
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DR   EMBL; CP001108; ACF46972.1; -; Genomic_DNA.
DR   PIR; S05561; S05561.
DR   RefSeq; WP_012506505.1; NC_011059.1.
DR   AlphaFoldDB; P15528; -.
DR   SMR; P15528; -.
DR   STRING; 290512.Paes_1960; -.
DR   EnsemblBacteria; ACF46972; ACF46972; Paes_1960.
DR   KEGG; paa:Paes_1960; -.
DR   eggNOG; ENOG5032TTJ; Bacteria.
DR   HOGENOM; CLU_194367_0_0_10; -.
DR   OMA; VEGHWAT; -.
DR   OrthoDB; 1896699at2; -.
DR   Proteomes; UP000002725; Chromosome.
DR   GO; GO:0033105; C:chlorosome envelope; IEA:UniProtKB-SubCell.
DR   GO; GO:0042314; F:bacteriochlorophyll binding; IEA:UniProtKB-KW.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   Gene3D; 1.20.5.950; -; 1.
DR   InterPro; IPR001470; Bchl_c-bd.
DR   InterPro; IPR038387; Bchl_C-bd_sf.
DR   Pfam; PF02043; Bac_chlorC; 1.
DR   PIRSF; PIRSF002903; Bac_chlorC_bd; 1.
DR   PRINTS; PR00656; BCHLROPHYLLC.
PE   1: Evidence at protein level;
KW   Bacteriochlorophyll; Chlorophyll; Chlorosome; Chromophore;
KW   Direct protein sequencing; Electron transport; Magnesium; Metal-binding;
KW   Photosynthesis; Reference proteome; Transport.
FT   CHAIN           1..?
FT                   /note="Bacteriochlorophyll c-binding protein"
FT                   /id="PRO_0000219553"
FT   PROPEP          ?..81
FT                   /evidence="ECO:0000255"
FT                   /id="PRO_0000352795"
FT   BINDING         25
FT                   /ligand="a bacteriochlorophyll c"
FT                   /ligand_id="ChEBI:CHEBI:60197"
FT                   /ligand_part="Mg"
FT                   /ligand_part_id="ChEBI:CHEBI:25107"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255"
FT   CONFLICT        2
FT                   /note="S -> N (in Ref. 2; AA sequence)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   81 AA;  8338 MW;  151DFEDA63E48814 CRC64;
     MSGGGVFTDI LAAAGRIFEV MVEGHWETVG MLFDSLGKGT MRINRNAYGN LGGGGGSLRG
     SSPEVSGFAV PTKAVESKFA K