PSAK_THEVB
ID PSAK_THEVB Reviewed; 83 AA.
AC P0A425; P20453;
DT 15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT 15-MAR-2005, sequence version 1.
DT 03-AUG-2022, entry version 110.
DE RecName: Full=Photosystem I reaction center subunit PsaK;
DE AltName: Full=Light-harvesting 8.0 kDa polypeptide;
DE AltName: Full=Photosystem I subunit X;
DE Flags: Precursor;
GN Name=psaK; OrderedLocusNames=tsr2273;
OS Thermosynechococcus vestitus (strain NIES-2133 / IAM M-273 / BP-1).
OC Bacteria; Cyanobacteria; Pseudanabaenales; Thermosynechococcaceae;
OC Thermosynechococcus.
OX NCBI_TaxID=197221;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=NIES-2133 / IAM M-273 / BP-1;
RX PubMed=12240834; DOI=10.1093/dnares/9.4.123;
RA Nakamura Y., Kaneko T., Sato S., Ikeuchi M., Katoh H., Sasamoto S.,
RA Watanabe A., Iriguchi M., Kawashima K., Kimura T., Kishida Y., Kiyokawa C.,
RA Kohara M., Matsumoto M., Matsuno A., Nakazaki N., Shimpo S., Sugimoto M.,
RA Takeuchi C., Yamada M., Tabata S.;
RT "Complete genome structure of the thermophilic cyanobacterium
RT Thermosynechococcus elongatus BP-1.";
RL DNA Res. 9:123-130(2002).
RN [2]
RP X-RAY CRYSTALLOGRAPHY (4.0 ANGSTROMS).
RX PubMed=8901876; DOI=10.1038/nsb1196-965;
RA Krauss N., Schubert W.-D., Klukas O., Fromme P., Witt H.T., Saenger W.;
RT "Photosystem I at 4-A resolution represents the first structural model of a
RT joint photosynthetic reaction centre and core antenna system.";
RL Nat. Struct. Biol. 3:965-973(1996).
RN [3]
RP X-RAY CRYSTALLOGRAPHY (4.0 ANGSTROMS).
RX PubMed=10066799; DOI=10.1074/jbc.274.11.7351;
RA Klukas O., Schubert W.-D., Jordan P., Krauss N., Fromme P., Witt H.T.,
RA Saenger W.;
RT "Photosystem I, an improved model of the stromal subunits PsaC, PsaD, and
RT PsaE.";
RL J. Biol. Chem. 274:7351-7360(1999).
RN [4]
RP X-RAY CRYSTALLOGRAPHY (2.5 ANGSTROMS).
RX PubMed=11418848; DOI=10.1038/35082000;
RA Jordan P., Fromme P., Witt H.T., Klukas O., Saenger W., Krauss N.;
RT "Three-dimensional structure of cyanobacterial photosystem I at 2.5 A
RT resolution.";
RL Nature 411:909-917(2001).
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000305}; Multi-
CC pass membrane protein {ECO:0000305}.
CC -!- SIMILARITY: Belongs to the PsaG/PsaK family. {ECO:0000305}.
CC -!- SEQUENCE CAUTION:
CC Sequence=BAC09825.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR EMBL; BA000039; BAC09825.1; ALT_INIT; Genomic_DNA.
DR RefSeq; NP_683063.1; NC_004113.1.
DR PDB; 1C51; X-ray; 4.00 A; -.
DR PDB; 1JB0; X-ray; 2.50 A; K=1-83.
DR PDB; 2PPS; X-ray; 4.00 A; -.
DR PDB; 3PCQ; X-ray; 8.98 A; K=1-83.
DR PDB; 4FE1; X-ray; 4.92 A; K=1-83.
DR PDB; 5ZF0; X-ray; 4.20 A; K1/K2/K3/K4/K5/K6=1-83.
DR PDB; 6PFY; X-ray; 2.90 A; K/T/g=1-83.
DR PDB; 6PGK; X-ray; 2.90 A; K/T/g=1-83.
DR PDB; 6TRA; EM; 2.85 A; K=1-83.
DR PDB; 6TRC; EM; 2.98 A; 9/K/k=1-83.
DR PDB; 6TRD; EM; 3.16 A; 9/K/k=1-83.
DR PDB; 7BW2; X-ray; 6.50 A; K=1-83.
DR PDB; 7M75; X-ray; 2.75 A; K=1-83.
DR PDB; 7M76; X-ray; 3.00 A; K=1-83.
DR PDB; 7M78; X-ray; 3.00 A; K=1-83.
DR PDBsum; 1C51; -.
DR PDBsum; 1JB0; -.
DR PDBsum; 2PPS; -.
DR PDBsum; 3PCQ; -.
DR PDBsum; 4FE1; -.
DR PDBsum; 5ZF0; -.
DR PDBsum; 6PFY; -.
DR PDBsum; 6PGK; -.
DR PDBsum; 6TRA; -.
DR PDBsum; 6TRC; -.
DR PDBsum; 6TRD; -.
DR PDBsum; 7BW2; -.
DR PDBsum; 7M75; -.
DR PDBsum; 7M76; -.
DR PDBsum; 7M78; -.
DR AlphaFoldDB; P0A425; -.
DR SMR; P0A425; -.
DR IntAct; P0A425; 1.
DR STRING; 197221.22296000; -.
DR EnsemblBacteria; BAC09825; BAC09825; BAC09825.
DR KEGG; tel:tsr2273; -.
DR PATRIC; fig|197221.4.peg.2382; -.
DR eggNOG; ENOG503323W; Bacteria.
DR OMA; FAIQKTG; -.
DR OrthoDB; 2053688at2; -.
DR EvolutionaryTrace; P0A425; -.
DR Proteomes; UP000000440; Chromosome.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0009522; C:photosystem I; IEA:UniProtKB-KW.
DR GO; GO:0031676; C:plasma membrane-derived thylakoid membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule.
DR Gene3D; 1.20.860.20; -; 1.
DR HAMAP; MF_00474; PSI_PsaK; 1.
DR InterPro; IPR035982; PSI_centre_PsaK_sf.
DR InterPro; IPR000549; PSI_PsaG/PsaK.
DR InterPro; IPR017492; PSI_PsaK.
DR InterPro; IPR037101; PSI_PsaK_bact.
DR Pfam; PF01241; PSI_PSAK; 1.
DR SUPFAM; SSF81563; SSF81563; 1.
DR TIGRFAMs; TIGR03049; PS_I_psaK; 1.
DR PROSITE; PS01026; PHOTOSYSTEM_I_PSAGK; 1.
PE 1: Evidence at protein level;
KW 3D-structure; Membrane; Photosynthesis; Photosystem I; Reference proteome;
KW Thylakoid; Transmembrane; Transmembrane helix.
FT PROPEP 1..4
FT /evidence="ECO:0000250"
FT /id="PRO_0000029402"
FT CHAIN 5..83
FT /note="Photosystem I reaction center subunit PsaK"
FT /id="PRO_0000029403"
FT TRANSMEM 12..30
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 68..83
FT /note="Helical"
FT /evidence="ECO:0000255"
FT HELIX 21..31
FT /evidence="ECO:0007829|PDB:1JB0"
FT TURN 32..34
FT /evidence="ECO:0007829|PDB:7M75"
FT HELIX 59..61
FT /evidence="ECO:0007829|PDB:1JB0"
FT HELIX 62..73
FT /evidence="ECO:0007829|PDB:1JB0"
SQ SEQUENCE 83 AA; 8480 MW; 76E2ECADEF75182E CRC64;
MVLATLPDTT WTPSVGLVVI LCNLFAIALG RYAIQSRGKG PGLPIALPAL FEGFGLPELL
ATTSFGHLLA AGVVSGLQYA GAL
