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Database: UniProt
Entry: Q7NG86
LinkDB: Q7NG86
Original site: Q7NG86 
ID   PSAC_GLOVI              Reviewed;          81 AA.
AC   Q7NG86;
DT   01-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   10-APR-2019, entry version 100.
DE   RecName: Full=Photosystem I iron-sulfur center {ECO:0000255|HAMAP-Rule:MF_01303};
DE            EC=1.97.1.12 {ECO:0000255|HAMAP-Rule:MF_01303};
DE   AltName: Full=9 kDa polypeptide {ECO:0000255|HAMAP-Rule:MF_01303};
DE   AltName: Full=PSI-C {ECO:0000255|HAMAP-Rule:MF_01303};
DE   AltName: Full=Photosystem I subunit VII {ECO:0000255|HAMAP-Rule:MF_01303};
DE   AltName: Full=PsaC {ECO:0000255|HAMAP-Rule:MF_01303};
GN   Name=psaC {ECO:0000255|HAMAP-Rule:MF_01303};
GN   OrderedLocusNames=gsl3287;
OS   Gloeobacter violaceus (strain ATCC 29082 / PCC 7421).
OC   Bacteria; Cyanobacteria; Gloeobacteria; Gloeobacterales;
OC   Gloeobacteraceae; Gloeobacter.
OX   NCBI_TaxID=251221;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29082 / PCC 7421;
RX   PubMed=14621292; DOI=10.1093/dnares/10.4.137;
RA   Nakamura Y., Kaneko T., Sato S., Mimuro M., Miyashita H., Tsuchiya T.,
RA   Sasamoto S., Watanabe A., Kawashima K., Kishida Y., Kiyokawa C.,
RA   Kohara M., Matsumoto M., Matsuno A., Nakazaki N., Shimpo S.,
RA   Takeuchi C., Yamada M., Tabata S.;
RT   "Complete genome structure of Gloeobacter violaceus PCC 7421, a
RT   cyanobacterium that lacks thylakoids.";
RL   DNA Res. 10:137-145(2003).
RN   [2]
RP   IDENTIFICATION BY MASS SPECTROMETRY, AND CHARACTERIZATION OF
RP   PHOTOSYSTEM I.
RC   STRAIN=ATCC 29082 / PCC 7421;
RX   PubMed=15589832; DOI=10.1016/j.febslet.2004.11.013;
RA   Inoue H., Tsuchiya T., Satoh S., Miyashita H., Kaneko T., Tabata S.,
RA   Tanaka A., Mimuro M.;
RT   "Unique constitution of photosystem I with a novel subunit in the
RT   cyanobacterium Gloeobacter violaceus PCC 7421.";
RL   FEBS Lett. 578:275-279(2004).
CC   -!- FUNCTION: Apoprotein for the two 4Fe-4S centers FA and FB of
CC       photosystem I (PSI); essential for photochemical activity. FB is
CC       the terminal electron acceptor of PSI, donating electrons to
CC       ferredoxin. The C-terminus interacts with PsaA/B/D and helps
CC       assemble the protein into the PSI complex. Required for binding of
CC       PsaD and PsaE to PSI. PSI is a plastocyanin/cytochrome c6-
CC       ferredoxin oxidoreductase, converting photonic excitation into a
CC       charge separation, which transfers an electron from the donor P700
CC       chlorophyll pair to the spectroscopically characterized acceptors
CC       A0, A1, FX, FA and FB in turn.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=hnu + oxidized [2Fe-2S]-[ferredoxin] + reduced
CC         [plastocyanin] = oxidized [plastocyanin] + reduced [2Fe-2S]-
CC         [ferredoxin]; Xref=Rhea:RHEA:30407, Rhea:RHEA-COMP:10000,
CC         Rhea:RHEA-COMP:10001, Rhea:RHEA-COMP:10039, Rhea:RHEA-
CC         COMP:10040, ChEBI:CHEBI:29036, ChEBI:CHEBI:30212,
CC         ChEBI:CHEBI:33737, ChEBI:CHEBI:33738, ChEBI:CHEBI:49552;
CC         EC=1.97.1.12; Evidence={ECO:0000255|HAMAP-Rule:MF_01303};
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01303};
CC       Note=Binds 2 [4Fe-4S] clusters. Cluster 2 is most probably the
CC       spectroscopically characterized electron acceptor FA and cluster 1
CC       is most probably FB. {ECO:0000255|HAMAP-Rule:MF_01303};
CC   -!- SUBUNIT: The G.violaceus PSI reaction center is composed of one
CC       copy each of PsaA,B,C,D,E,F,L,M and Z, and forms trimeric
CC       complexes.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane; Peripheral membrane
CC       protein; Cytoplasmic side.
DR   EMBL; BA000045; BAC91228.1; -; Genomic_DNA.
DR   RefSeq; NP_926233.1; NC_005125.1.
DR   RefSeq; WP_011143277.1; NC_005125.1.
DR   ProteinModelPortal; Q7NG86; -.
DR   SMR; Q7NG86; -.
DR   STRING; 251221.35213858; -.
DR   PRIDE; Q7NG86; -.
DR   EnsemblBacteria; BAC91228; BAC91228; BAC91228.
DR   GeneID; 2601689; -.
DR   KEGG; gvi:gvip455; -.
DR   PATRIC; fig|251221.4.peg.3319; -.
DR   eggNOG; ENOG4108Z6M; Bacteria.
DR   eggNOG; COG1145; LUCA.
DR   InParanoid; Q7NG86; -.
DR   KO; K02691; -.
DR   OMA; AHTVKIY; -.
DR   OrthoDB; 1873445at2; -.
DR   PhylomeDB; Q7NG86; -.
DR   BioCyc; GVIO251221:G1G3K-3329-MONOMER; -.
DR   Proteomes; UP000000557; Chromosome.
DR   GO; GO:0009522; C:photosystem I; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0042651; C:thylakoid membrane; IEA:InterPro.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW.
DR   GO; GO:0009055; F:electron transfer activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0015979; P:photosynthesis; IBA:GO_Central.
DR   GO; GO:0009773; P:photosynthetic electron transport in photosystem I; IEA:InterPro.
DR   HAMAP; MF_01303; PSI_PsaC; 1.
DR   InterPro; IPR017896; 4Fe4S_Fe-S-bd.
DR   InterPro; IPR017900; 4Fe4S_Fe_S_CS.
DR   InterPro; IPR017491; PSI_PsaC.
DR   Pfam; PF12838; Fer4_7; 1.
DR   TIGRFAMs; TIGR03048; PS_I_psaC; 1.
DR   PROSITE; PS00198; 4FE4S_FER_1; 2.
DR   PROSITE; PS51379; 4FE4S_FER_2; 2.
PE   1: Evidence at protein level;
KW   4Fe-4S; Cell inner membrane; Cell membrane; Complete proteome;
KW   Electron transport; Iron; Iron-sulfur; Membrane; Metal-binding;
KW   Oxidoreductase; Photosynthesis; Photosystem I; Reference proteome;
KW   Repeat; Transport.
FT   INIT_MET      1      1       Removed. {ECO:0000250}.
FT   CHAIN         2     81       Photosystem I iron-sulfur center.
FT                                /FTId=PRO_0000062011.
FT   DOMAIN        2     31       4Fe-4S ferredoxin-type 1.
FT                                {ECO:0000255|HAMAP-Rule:MF_01303}.
FT   DOMAIN       39     68       4Fe-4S ferredoxin-type 2.
FT                                {ECO:0000255|HAMAP-Rule:MF_01303}.
FT   METAL        11     11       Iron-sulfur 1 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01303}.
FT   METAL        14     14       Iron-sulfur 1 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01303}.
FT   METAL        17     17       Iron-sulfur 1 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01303}.
FT   METAL        21     21       Iron-sulfur 2 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01303}.
FT   METAL        48     48       Iron-sulfur 2 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01303}.
FT   METAL        51     51       Iron-sulfur 2 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01303}.
FT   METAL        54     54       Iron-sulfur 2 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01303}.
FT   METAL        58     58       Iron-sulfur 1 (4Fe-4S).
FT                                {ECO:0000255|HAMAP-Rule:MF_01303}.
SQ   SEQUENCE   81 AA;  8798 MW;  9CDA6A97234B0BF5 CRC64;
     MSHSVKIYDT CIGCTQCVRA CPLDVLEMVP WDGNKAGTIA SSPRTEDCVG CKRCETACPT
     DFLSIRVYLG AETTRSMGLA Y
//
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