ID B3V4T0_OEDCA Unreviewed; 81 AA.
AC B3V4T0;
DT 02-SEP-2008, integrated into UniProtKB/TrEMBL.
DT 02-SEP-2008, sequence version 1.
DT 27-MAR-2024, entry version 66.
DE RecName: Full=Photosystem I iron-sulfur center {ECO:0000256|ARBA:ARBA00013413, ECO:0000256|HAMAP-Rule:MF_01303};
DE EC=1.97.1.12 {ECO:0000256|ARBA:ARBA00013197, ECO:0000256|HAMAP-Rule:MF_01303};
DE AltName: Full=9 kDa polypeptide {ECO:0000256|ARBA:ARBA00032541, ECO:0000256|HAMAP-Rule:MF_01303};
DE AltName: Full=PSI-C {ECO:0000256|ARBA:ARBA00033423, ECO:0000256|HAMAP-Rule:MF_01303};
DE AltName: Full=Photosystem I subunit VII {ECO:0000256|ARBA:ARBA00030218, ECO:0000256|HAMAP-Rule:MF_01303};
DE AltName: Full=PsaC {ECO:0000256|ARBA:ARBA00031003, ECO:0000256|HAMAP-Rule:MF_01303};
GN Name=psaC {ECO:0000256|HAMAP-Rule:MF_01303,
GN ECO:0000313|EMBL:ACC97223.1};
OS Oedogonium cardiacum (Filamentous green alga).
OG Plastid; Chloroplast {ECO:0000313|EMBL:ACC97223.1}.
OC Eukaryota; Viridiplantae; Chlorophyta; core chlorophytes; Chlorophyceae;
OC OCC clade; Oedogoniales; Oedogoniaceae; Oedogonium.
OX NCBI_TaxID=55995 {ECO:0000313|EMBL:ACC97223.1};
RN [1] {ECO:0000313|EMBL:ACC97223.1}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=SAG 575-1b {ECO:0000313|EMBL:ACC97223.1};
RX PubMed=18558012; DOI=10.1186/1471-2164-9-290;
RA Brouard J.S., Otis C., Lemieux C., Turmel M.;
RT "Chloroplast DNA sequence of the green alga Oedogonium cardiacum
RT (Chlorophyceae): unique genome architecture, derived characters shared with
RT the Chaetophorales and novel genes acquired through horizontal transfer.";
RL BMC Genomics 9:290-290(2008).
RN [2] {ECO:0000313|EMBL:ACC97223.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=SAG 575-1b {ECO:0000313|EMBL:ACC97223.1};
RG US DOE Joint Genome Institute;
RA Lucas S., Copeland A., Lapidus A., Glavina del Rio T., Pitluck S., Sun H.,
RA Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N., Anderson I.,
RA Herlemann D.P.R., Geissinger O., Ikeda-Ohtsubo W., Kunin V.,
RA Humgenholtz P., Brune A., Richardson P.;
RL Submitted (APR-2008) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Apoprotein for the two 4Fe-4S centers FA and FB of
CC photosystem I (PSI); essential for photochemical activity. FB is the
CC terminal electron acceptor of PSI, donating electrons to ferredoxin.
CC The C-terminus interacts with PsaA/B/D and helps assemble the protein
CC into the PSI complex. Required for binding of PsaD and PsaE to PSI. PSI
CC is a plastocyanin/cytochrome c6-ferredoxin oxidoreductase, converting
CC photonic excitation into a charge separation, which transfers an
CC electron from the donor P700 chlorophyll pair to the spectroscopically
CC characterized acceptors A0, A1, FX, FA and FB in turn.
CC {ECO:0000256|HAMAP-Rule:MF_01303}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=hnu + oxidized [2Fe-2S]-[ferredoxin] + reduced [plastocyanin]
CC = oxidized [plastocyanin] + reduced [2Fe-2S]-[ferredoxin];
CC Xref=Rhea:RHEA:30407, Rhea:RHEA-COMP:10000, Rhea:RHEA-COMP:10001,
CC Rhea:RHEA-COMP:10039, Rhea:RHEA-COMP:10040, ChEBI:CHEBI:29036,
CC ChEBI:CHEBI:30212, ChEBI:CHEBI:33737, ChEBI:CHEBI:33738,
CC ChEBI:CHEBI:49552; EC=1.97.1.12;
CC Evidence={ECO:0000256|ARBA:ARBA00000994, ECO:0000256|HAMAP-
CC Rule:MF_01303};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000256|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 is
CC most probably FB. {ECO:0000256|HAMAP-Rule:MF_01303};
CC -!- SUBUNIT: The eukaryotic PSI reaction center is composed of at least 11
CC subunits. {ECO:0000256|HAMAP-Rule:MF_01303}.
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC {ECO:0000256|HAMAP-Rule:MF_01303}; Peripheral membrane protein
CC {ECO:0000256|HAMAP-Rule:MF_01303}; Stromal side {ECO:0000256|HAMAP-
CC Rule:MF_01303}.
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DR EMBL; EU677193; ACC97223.1; -; Genomic_DNA.
DR RefSeq; YP_002000434.1; NC_011031.1.
DR AlphaFoldDB; B3V4T0; -.
DR GeneID; 6440059; -.
DR GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0009522; C:photosystem I; IEA:UniProtKB-KW.
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:0009773; P:photosynthetic electron transport in photosystem I; IEA:InterPro.
DR Gene3D; 3.30.70.20; -; 1.
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 NCBIfam; TIGR03048; PS_I_psaC; 1.
DR PANTHER; PTHR24960:SF88; PHOTOSYSTEM I IRON-SULFUR CENTER; 1.
DR PANTHER; PTHR24960; PHOTOSYSTEM I IRON-SULFUR CENTER-RELATED; 1.
DR Pfam; PF12838; Fer4_7; 1.
DR SUPFAM; SSF54862; 4Fe-4S ferredoxins; 1.
DR PROSITE; PS00198; 4FE4S_FER_1; 1.
DR PROSITE; PS51379; 4FE4S_FER_2; 2.
PE 3: Inferred from homology;
KW 4Fe-4S {ECO:0000256|ARBA:ARBA00022485, ECO:0000256|HAMAP-Rule:MF_01303};
KW Chloroplast {ECO:0000313|EMBL:ACC97223.1};
KW Electron transport {ECO:0000256|ARBA:ARBA00022982, ECO:0000256|HAMAP-
KW Rule:MF_01303};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_01303};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014, ECO:0000256|HAMAP-
KW Rule:MF_01303};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|HAMAP-Rule:MF_01303};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_01303};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002, ECO:0000256|HAMAP-
KW Rule:MF_01303};
KW Photosynthesis {ECO:0000256|ARBA:ARBA00022531, ECO:0000256|HAMAP-
KW Rule:MF_01303};
KW Photosystem I {ECO:0000256|ARBA:ARBA00022836, ECO:0000256|HAMAP-
KW Rule:MF_01303}; Plastid {ECO:0000313|EMBL:ACC97223.1};
KW Repeat {ECO:0000256|ARBA:ARBA00022737, ECO:0000256|HAMAP-Rule:MF_01303};
KW Thylakoid {ECO:0000256|HAMAP-Rule:MF_01303};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|HAMAP-Rule:MF_01303}.
FT DOMAIN 2..31
FT /note="4Fe-4S ferredoxin-type"
FT /evidence="ECO:0000259|PROSITE:PS51379"
FT DOMAIN 41..68
FT /note="4Fe-4S ferredoxin-type"
FT /evidence="ECO:0000259|PROSITE:PS51379"
FT BINDING 11
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01303"
FT BINDING 14
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01303"
FT BINDING 17
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01303"
FT BINDING 21
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01303"
FT BINDING 48
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01303"
FT BINDING 51
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01303"
FT BINDING 54
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="2"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01303"
FT BINDING 58
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /ligand_label="1"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_01303"
SQ SEQUENCE 81 AA; 8871 MW; D116B0515A74AAE0 CRC64;
MSHIVKIYDT CIGCTQCVRA CPLDVLEMVP WDGCKAGQMA SAPRIEECVG CKRCESACPT
DFLSVRVYTN AESTRSMGLA Y
//
