ID   CSMI_CHLTE              Reviewed;         244 AA.
AC   O68988;
DT   27-APR-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1998, sequence version 1.
DT   03-AUG-2022, entry version 117.
DE   RecName: Full=Chlorosome protein I;
GN   Name=csmI; OrderedLocusNames=CT1382;
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].
RX   PubMed=11148041; DOI=10.1021/bi001917d;
RA   Vassilieva E.V., Antonkine M.L., Zybailov B.L., Yang F., Jakobs C.U.,
RA   Golbeck J.H., Bryant D.A.;
RT   "Electron transfer may occur in the chlorosome envelope: the CsmI and CsmJ
RT   proteins of chlorosomes are 2Fe-2S ferredoxins.";
RL   Biochemistry 40:464-473(2001).
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   PARTIAL PROTEIN SEQUENCE.
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).
CC   -!- FUNCTION: Could play a direct role in the oxidation or reduction of the
CC       quenching species formed in the chlorosome.
CC   -!- COFACTOR:
CC       Name=[2Fe-2S] cluster; Xref=ChEBI:CHEBI:190135;
CC       Note=Binds 1 [2Fe-2S] cluster per subunit.;
CC   -!- SUBCELLULAR LOCATION: Chlorosome.
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DR   EMBL; AF060079; AAC14875.1; -; Genomic_DNA.
DR   EMBL; AE006470; AAM72611.1; -; Genomic_DNA.
DR   RefSeq; NP_662269.1; NC_002932.3.
DR   AlphaFoldDB; O68988; -.
DR   STRING; 194439.CT1382; -.
DR   EnsemblBacteria; AAM72611; AAM72611; CT1382.
DR   KEGG; cte:CT1382; -.
DR   PATRIC; fig|194439.7.peg.1256; -.
DR   eggNOG; COG0633; Bacteria.
DR   HOGENOM; CLU_1265952_0_0_10; -.
DR   OMA; LNHAHVG; -.
DR   OrthoDB; 1444909at2; -.
DR   Proteomes; UP000001007; Chromosome.
DR   GO; GO:0046858; C:chlorosome; IEA:UniProtKB-SubCell.
DR   GO; GO:0051537; F:2 iron, 2 sulfur cluster 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; 3.10.20.30; -; 1.
DR   InterPro; IPR036010; 2Fe-2S_ferredoxin-like_sf.
DR   InterPro; IPR001041; 2Fe-2S_ferredoxin-type.
DR   InterPro; IPR012675; Beta-grasp_dom_sf.
DR   Pfam; PF00111; Fer2; 1.
DR   SUPFAM; SSF54292; SSF54292; 1.
DR   PROSITE; PS51085; 2FE2S_FER_2; 1.
PE   1: Evidence at protein level;
KW   2Fe-2S; Chlorosome; Direct protein sequencing; Electron transport; Iron;
KW   Iron-sulfur; Metal-binding; Photosynthesis; Reference proteome; Transport.
FT   CHAIN           1..244
FT                   /note="Chlorosome protein I"
FT                   /id="PRO_0000189396"
FT   DOMAIN          1..95
FT                   /note="2Fe-2S ferredoxin-type"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00465"
FT   BINDING         33
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00465"
FT   BINDING         39
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00465"
FT   BINDING         42
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00465"
FT   BINDING         77
FT                   /ligand="[2Fe-2S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:190135"
FT                   /evidence="ECO:0000255|PROSITE-ProRule:PRU00465"
SQ   SEQUENCE   244 AA;  25911 MW;  910563FACAFE0C0D CRC64;
     MNLIINDKTA SSSVGQTIGK AARLNHAHVG YVCGGHGLCQ ACYITVQEGA DCLAPLTDVE
     KAFLSPRQIA AGGRIACQAT IAKEGTVKVL SRPEEVRRMV FSNPFQLIGY AADMGKDTAQ
     QIVPGVQNLI GRIQRGEMGG KDALGDMIES IQGAAGLVVE AIQQGPMALP IPFKEQIADL
     ISKLPLPQIQ LPSISLPQLP SISFPQLPFS LPKLPFSLPF LPQQPQATAS LEKVTITVQP
     PAKD