ID K4K830_PHYUR Unreviewed; 81 AA.
AC K4K830;
DT 09-JAN-2013, integrated into UniProtKB/TrEMBL.
DT 09-JAN-2013, sequence version 1.
DT 27-MAR-2024, entry version 30.
DE RecName: Full=Photosystem I iron-sulfur center {ECO:0000256|ARBA:ARBA00013413};
DE EC=1.97.1.12 {ECO:0000256|ARBA:ARBA00013197};
DE AltName: Full=9 kDa polypeptide {ECO:0000256|ARBA:ARBA00032541};
DE AltName: Full=PSI-C {ECO:0000256|ARBA:ARBA00033423};
DE AltName: Full=Photosystem I subunit VII {ECO:0000256|ARBA:ARBA00030218};
DE AltName: Full=PsaC {ECO:0000256|ARBA:ARBA00031003};
DE Flags: Fragment;
GN Name=psaC {ECO:0000313|EMBL:AFU95239.1};
OS Phyllanthus urinaria (Chamber bitter) (Diasperus urinaria).
OG Plastid; Chloroplast {ECO:0000313|EMBL:AFU95239.1}.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC rosids; fabids; Malpighiales; Phyllanthaceae; Phyllanthoideae;
OC Phyllantheae; Emblica.
OX NCBI_TaxID=296035 {ECO:0000313|EMBL:AFU95239.1};
RN [1] {ECO:0000313|EMBL:AFU95239.1}
RP NUCLEOTIDE SEQUENCE.
RX PubMed=23045684; DOI=10.1073/pnas.1205818109;
RA Xi Z., Ruhfel B.R., Schaefer H., Amorim A.M., Sugumaran M., Wurdack K.J.,
RA Endress P.K., Matthews M.L., Stevens P.F., Mathews S., Davis C.C.;
RT "Phylogenomics and a posteriori data partitioning resolve the Cretaceous
RT angiosperm radiation Malpighiales.";
RL Proc. Natl. Acad. Sci. U.S.A. 109:17519-17524(2012).
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-ferredoxin oxidoreductase, converting photonic
CC excitation into a charge separation, which transfers an electron from
CC the donor P700 chlorophyll pair to the spectroscopically characterized
CC acceptors A0, A1, FX, FA and FB in turn.
CC {ECO:0000256|ARBA:ARBA00003402}.
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};
CC -!- COFACTOR:
CC Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC Evidence={ECO:0000256|ARBA:ARBA00001966};
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DR EMBL; JX663118; AFU95239.1; -; Genomic_DNA.
DR AlphaFoldDB; K4K830; -.
DR SMR; K4K830; -.
DR GO; GO:0009507; C:chloroplast; IEA:UniProtKB-KW.
DR GO; GO:0009522; C:photosystem I; IEA:UniProtKB-KW.
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:InterPro.
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; PF14697; Fer4_21; 1.
DR SUPFAM; SSF54862; 4Fe-4S ferredoxins; 1.
DR PROSITE; PS00198; 4FE4S_FER_1; 2.
DR PROSITE; PS51379; 4FE4S_FER_2; 2.
PE 3: Inferred from homology;
KW 4Fe-4S {ECO:0000256|ARBA:ARBA00022485};
KW Chloroplast {ECO:0000313|EMBL:AFU95239.1};
KW Electron transport {ECO:0000256|ARBA:ARBA00022982};
KW Iron {ECO:0000256|ARBA:ARBA00023004};
KW Iron-sulfur {ECO:0000256|ARBA:ARBA00023014};
KW Membrane {ECO:0000256|ARBA:ARBA00023136};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002};
KW Photosynthesis {ECO:0000256|ARBA:ARBA00022531};
KW Photosystem I {ECO:0000256|ARBA:ARBA00022836};
KW Plastid {ECO:0000313|EMBL:AFU95239.1};
KW Repeat {ECO:0000256|ARBA:ARBA00022737};
KW Thylakoid {ECO:0000256|ARBA:ARBA00023078};
KW Transport {ECO:0000256|ARBA:ARBA00022448}.
FT DOMAIN 1..31
FT /note="4Fe-4S ferredoxin-type"
FT /evidence="ECO:0000259|PROSITE:PS51379"
FT DOMAIN 39..68
FT /note="4Fe-4S ferredoxin-type"
FT /evidence="ECO:0000259|PROSITE:PS51379"
FT NON_TER 81
FT /evidence="ECO:0000313|EMBL:AFU95239.1"
SQ SEQUENCE 81 AA; 9024 MW; 6802BDB57FC603BF CRC64;
MSHSVKIYDT CIGCTQCVRA CPTDVLEMIP WDGCKAKQIA SAPRTEDCVG CKRCESACPT
DFLSVRVYLW HETTRSMGLG Y
//
