ID   PSAF_SYNP6              Reviewed;         159 AA.
AC   P31083; Q5N5C8;
DT   01-JUL-1993, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2005, sequence version 2.
DT   25-MAY-2022, entry version 99.
DE   RecName: Full=Photosystem I reaction center subunit III;
DE   AltName: Full=PSI-F;
DE   Flags: Precursor;
GN   Name=psaF; OrderedLocusNames=syc0300_d;
OS   Synechococcus sp. (strain ATCC 27144 / PCC 6301 / SAUG 1402/1) (Anacystis
OS   nidulans).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX   NCBI_TaxID=269084;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 27144 / PCC 6301 / SAUG 1402/1;
RX   PubMed=17211581; DOI=10.1007/s11120-006-9122-4;
RA   Sugita C., Ogata K., Shikata M., Jikuya H., Takano J., Furumichi M.,
RA   Kanehisa M., Omata T., Sugiura M., Sugita M.;
RT   "Complete nucleotide sequence of the freshwater unicellular cyanobacterium
RT   Synechococcus elongatus PCC 6301 chromosome: gene content and
RT   organization.";
RL   Photosyn. Res. 93:55-67(2007).
RN   [2]
RP   PROTEIN SEQUENCE OF 24-52.
RX   PubMed=1653017; DOI=10.1016/s0005-2728(05)80206-3;
RA   Li N., Warren P.V., Golbeck J.H., Frank G., Zuber H., Bryant D.A.;
RT   "Polypeptide composition of the Photosystem I complex and the Photosystem I
RT   core protein from Synechococcus sp. PCC 6301.";
RL   Biochim. Biophys. Acta 1059:215-225(1991).
CC   -!- FUNCTION: Probably participates in efficiency of electron transfer from
CC       plastocyanin to P700 (or cytochrome c553 in algae and cyanobacteria).
CC       This plastocyanin-docking protein contributes to the specific
CC       association of plastocyanin to PSI.
CC   -!- SIMILARITY: Belongs to the PsaF family. {ECO:0000305}.
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DR   EMBL; AP008231; BAD78490.1; -; Genomic_DNA.
DR   RefSeq; WP_011242614.1; NC_006576.1.
DR   AlphaFoldDB; P31083; -.
DR   SMR; P31083; -.
DR   STRING; 269084.syc0300_d; -.
DR   EnsemblBacteria; BAD78490; BAD78490; syc0300_d.
DR   KEGG; syc:syc0300_d; -.
DR   eggNOG; ENOG502ZBQN; Bacteria.
DR   OMA; LIVDGRW; -.
DR   Proteomes; UP000001175; Chromosome.
DR   GO; GO:0009538; C:photosystem I reaction center; IEA:InterPro.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   Gene3D; 1.10.8.110; -; 1.
DR   InterPro; IPR003666; PSI_PsaF.
DR   InterPro; IPR036577; PSI_PsaF_sf.
DR   PANTHER; PTHR34939; PTHR34939; 1.
DR   Pfam; PF02507; PSI_PsaF; 1.
DR   SUPFAM; SSF81536; SSF81536; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Photosynthesis; Photosystem I; Signal.
FT   SIGNAL          1..23
FT                   /evidence="ECO:0000269|PubMed:1653017"
FT   CHAIN           24..159
FT                   /note="Photosystem I reaction center subunit III"
FT                   /id="PRO_0000029354"
FT   CONFLICT        31
FT                   /note="C -> T (in Ref. 2; AA sequence)"
FT                   /evidence="ECO:0000305"
SQ   SEQUENCE   159 AA;  17109 MW;  0E4880723D299DB4 CRC64;
     MRRLFAVVLA ACLWLGFAPQ ASADVAGLTP CSESPRFIQR AEAAATPQAK ARFENYSQAL
     CGADGLPHLI VDGRLDHAGD FIIPSLLFLY IAGWIGWVGR SYLQAIKSDK DAAGKEIVID
     VPLAVKFSLT GFAWPLAAFQ EFSSGKLLAK ADEITVSPR