ID   CSMB_CHLTE              Reviewed;          75 AA.
AC   Q46383;
DT   29-AUG-2001, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   03-AUG-2022, entry version 92.
DE   RecName: Full=Chlorosome envelope protein B;
DE   AltName: Full=Chlorosome 7.5 kDa protein;
DE   AltName: Full=Gerola-Olson chlorosome protein;
GN   Name=csmB; OrderedLocusNames=CT2054;
OS   Chlorobaculum tepidum (strain ATCC 49652 / DSM 12025 / NBRC 103806 / TLS)
OS   (Chlorobium tepidum).
OC   Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae; Chlorobaculum.
OX   NCBI_TaxID=194439;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Chung S., Frank G., Zuber H., Bryant D.A.;
RT   "Genes encoding two chlorosome components from the green sulfur bacteria
RT   Chlorobium vibrioforme strain 8327D and Chlorobium tepidum.";
RL   Photosyn. Res. 41:261-275(1994).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 49652 / DSM 12025 / NBRC 103806 / TLS;
RX   PubMed=12093901; DOI=10.1073/pnas.132181499;
RA   Eisen J.A., Nelson K.E., Paulsen I.T., Heidelberg J.F., Wu M., Dodson R.J.,
RA   DeBoy R.T., Gwinn M.L., Nelson W.C., Haft D.H., Hickey E.K., Peterson J.D.,
RA   Durkin A.S., Kolonay J.F., Yang F., Holt I.E., Umayam L.A., Mason T.M.,
RA   Brenner M., Shea T.P., Parksey D.S., Nierman W.C., Feldblyum T.V.,
RA   Hansen C.L., Craven M.B., Radune D., Vamathevan J.J., Khouri H.M.,
RA   White O., Gruber T.M., Ketchum K.A., Venter J.C., Tettelin H., Bryant D.A.,
RA   Fraser C.M.;
RT   "The complete genome sequence of Chlorobium tepidum TLS, a photosynthetic,
RT   anaerobic, green-sulfur bacterium.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:9509-9514(2002).
RN   [3]
RP   CHARACTERIZATION.
RX   PubMed=8824146; DOI=10.1007/s002030050379;
RA   Chung S., Bryant D.A.;
RT   "Characterization of csmB genes, encoding a 7.5-kDa protein of the
RT   chlorosome envelope, from the green sulfur bacteria Chlorobium vibrioforme
RT   8327D and Chlorobium tepidum.";
RL   Arch. Microbiol. 166:234-244(1996).
CC   -!- FUNCTION: Component of the photosynthetic apparatus which may bind the
CC       chlorosome to the bacteriochlorophyll a protein monolayer.
CC   -!- SUBCELLULAR LOCATION: Chlorosome, chlorosome envelope.
CC   -!- SIMILARITY: Belongs to the CsmB/CsmF family. {ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAB02562.1; Type=Erroneous initiation; Evidence={ECO:0000305};
CC       Sequence=AAM73271.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; U58313; AAB02562.1; ALT_INIT; Genomic_DNA.
DR   EMBL; AE006470; AAM73271.1; ALT_INIT; Genomic_DNA.
DR   RefSeq; NP_662929.1; NC_002932.3.
DR   AlphaFoldDB; Q46383; -.
DR   SMR; Q46383; -.
DR   STRING; 194439.CT2054; -.
DR   EnsemblBacteria; AAM73271; AAM73271; CT2054.
DR   KEGG; cte:CT2054; -.
DR   PATRIC; fig|194439.7.peg.1861; -.
DR   eggNOG; ENOG50349SF; Bacteria.
DR   HOGENOM; CLU_196054_0_0_10; -.
DR   OMA; MQIDVAN; -.
DR   OrthoDB; 2030845at2; -.
DR   Proteomes; UP000001007; Chromosome.
DR   GO; GO:0033105; C:chlorosome envelope; IEA:UniProtKB-SubCell.
DR   GO; GO:0042314; F:bacteriochlorophyll binding; IEA:UniProtKB-KW.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
PE   1: Evidence at protein level;
KW   Bacteriochlorophyll; Chlorophyll; Chlorosome; Chromophore; Photosynthesis;
KW   Reference proteome; Repeat.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000250"
FT   CHAIN           2..75
FT                   /note="Chlorosome envelope protein B"
FT                   /id="PRO_0000192638"
FT   REPEAT          8..17
FT                   /note="1"
FT   REPEAT          29..39
FT                   /note="2"
FT   REPEAT          40..50
FT                   /note="3"
FT   REPEAT          51..61
FT                   /note="4"
FT   REGION          8..61
FT                   /note="4 X approximate repeats"
SQ   SEQUENCE   75 AA;  7609 MW;  F56970F77ABE0131 CRC64;
     MSNGTNIDVA GAINTLAETF GKLFQMQIDV ANTALKALAD VAEPLGKTAT DLIGSFTGAA
     TQVLQSVSSA IAPKK