PSAF_SYNY3
ID PSAF_SYNY3 Reviewed; 165 AA.
AC P29256;
DT 01-DEC-1992, integrated into UniProtKB/Swiss-Prot.
DT 01-DEC-1992, sequence version 1.
DT 03-AUG-2022, entry version 122.
DE RecName: Full=Photosystem I reaction center subunit III;
DE AltName: Full=PSI-F;
DE Flags: Precursor;
GN Name=psaF; OrderedLocusNames=sll0819;
OS Synechocystis sp. (strain PCC 6803 / Kazusa).
OC Bacteria; Cyanobacteria; Synechococcales; Merismopediaceae; Synechocystis;
OC unclassified Synechocystis.
OX NCBI_TaxID=1111708;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=1939076; DOI=10.1016/s0021-9258(18)54902-4;
RA Chitnis P.R., Purvis D., Nelson N.;
RT "Molecular cloning and targeted mutagenesis of the gene psaF encoding
RT subunit III of photosystem I from the cyanobacterium Synechocystis sp. PCC
RT 6803.";
RL J. Biol. Chem. 266:20146-20151(1991).
RN [2]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=8106355; DOI=10.1016/s0021-9258(17)41849-7;
RA Xu Q., Yu L., Chitnis V.P., Chitnis P.R.;
RT "Function and organization of photosystem I in a cyanobacterial mutant
RT strain that lacks PsaF and PsaJ subunits.";
RL J. Biol. Chem. 269:3205-3211(1994).
RN [3]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 6803 / Kazusa;
RX PubMed=8905231; DOI=10.1093/dnares/3.3.109;
RA Kaneko T., Sato S., Kotani H., Tanaka A., Asamizu E., Nakamura Y.,
RA Miyajima N., Hirosawa M., Sugiura M., Sasamoto S., Kimura T., Hosouchi T.,
RA Matsuno A., Muraki A., Nakazaki N., Naruo K., Okumura S., Shimpo S.,
RA Takeuchi C., Wada T., Watanabe A., Yamada M., Yasuda M., Tabata S.;
RT "Sequence analysis of the genome of the unicellular cyanobacterium
RT Synechocystis sp. strain PCC6803. II. Sequence determination of the entire
RT genome and assignment of potential protein-coding regions.";
RL DNA Res. 3:109-136(1996).
RN [4]
RP PROTEIN SEQUENCE OF 24-35.
RX PubMed=8536689; DOI=10.1111/j.1432-1033.1995.459_b.x;
RA Barbato R., Polverino De Laureto P., Rigoni F., De Martini E.,
RA Giacometti G.M.;
RT "Pigment-protein complexes from the photosynthetic membrane of the
RT cyanobacterium Synechocystis sp. PCC 6803.";
RL Eur. J. Biochem. 234:459-465(1995).
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; M74801; AAA27292.1; -; Genomic_DNA.
DR EMBL; L20938; AAA27294.1; -; Genomic_DNA.
DR EMBL; BA000022; BAA18108.1; -; Genomic_DNA.
DR PIR; A41072; A41072.
DR PDB; 4KT0; X-ray; 2.80 A; F=1-165.
DR PDB; 4L6V; X-ray; 3.80 A; 6/F/f=84-165.
DR PDB; 5OY0; X-ray; 2.50 A; 6/F/f=23-165.
DR PDB; 6HQB; X-ray; 4.00 A; F=23-165.
DR PDB; 6NWA; EM; 3.48 A; F/Q/f=1-165.
DR PDB; 6UZV; EM; 3.10 A; 6/F/f=1-165.
DR PDBsum; 4KT0; -.
DR PDBsum; 4L6V; -.
DR PDBsum; 5OY0; -.
DR PDBsum; 6HQB; -.
DR PDBsum; 6NWA; -.
DR PDBsum; 6UZV; -.
DR AlphaFoldDB; P29256; -.
DR SMR; P29256; -.
DR IntAct; P29256; 9.
DR STRING; 1148.1653192; -.
DR PaxDb; P29256; -.
DR PRIDE; P29256; -.
DR EnsemblBacteria; BAA18108; BAA18108; BAA18108.
DR KEGG; syn:sll0819; -.
DR eggNOG; ENOG502ZBQN; Bacteria.
DR InParanoid; P29256; -.
DR OMA; LIVDGRW; -.
DR PhylomeDB; P29256; -.
DR BioCyc; MetaCyc:PSAF-MON; -.
DR Proteomes; UP000001425; Chromosome.
DR GO; GO:0009538; C:photosystem I reaction center; IEA:InterPro.
DR GO; GO:0030094; C:plasma membrane-derived photosystem I; IDA:UniProtKB.
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 3D-structure; Direct protein sequencing; Photosynthesis; Photosystem I;
KW Reference proteome; Signal.
FT SIGNAL 1..23
FT /evidence="ECO:0000250"
FT CHAIN 24..165
FT /note="Photosystem I reaction center subunit III"
FT /id="PRO_0000029355"
FT HELIX 32..34
FT /evidence="ECO:0007829|PDB:5OY0"
FT HELIX 36..42
FT /evidence="ECO:0007829|PDB:5OY0"
FT STRAND 48..50
FT /evidence="ECO:0007829|PDB:6UZV"
FT HELIX 54..61
FT /evidence="ECO:0007829|PDB:5OY0"
FT STRAND 64..67
FT /evidence="ECO:0007829|PDB:5OY0"
FT STRAND 73..75
FT /evidence="ECO:0007829|PDB:5OY0"
FT HELIX 81..83
FT /evidence="ECO:0007829|PDB:5OY0"
FT TURN 84..87
FT /evidence="ECO:0007829|PDB:5OY0"
FT HELIX 88..112
FT /evidence="ECO:0007829|PDB:5OY0"
FT HELIX 118..123
FT /evidence="ECO:0007829|PDB:5OY0"
FT HELIX 127..135
FT /evidence="ECO:0007829|PDB:5OY0"
FT TURN 136..139
FT /evidence="ECO:0007829|PDB:5OY0"
FT HELIX 140..150
FT /evidence="ECO:0007829|PDB:5OY0"
FT STRAND 151..154
FT /evidence="ECO:0007829|PDB:5OY0"
FT HELIX 157..159
FT /evidence="ECO:0007829|PDB:5OY0"
SQ SEQUENCE 165 AA; 18249 MW; 9DD84F6B87E72151 CRC64;
MKHLLALLLA FTLWFNFAPS ASADDFANLT PCSENPAYLA KSKNFLNTTN DPNSGKIRAE
RYASALCGPE GYPHLIVDGR FTHAGDFLIP SILFLYIAGW IGWVGRSYLI EIRESKNPEM
QEVVINVPLA IKKMLGGFLW PLAAVGEYTS GKLVMKDSEI PTSPR
