PSAK_SYNEL
ID PSAK_SYNEL Reviewed; 83 AA.
AC P0A426; P20453;
DT 15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT 15-MAR-2005, sequence version 1.
DT 25-MAY-2022, entry version 67.
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;
OS Synechococcus elongatus.
OC Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX NCBI_TaxID=32046;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=8486290; DOI=10.1016/0378-1119(93)90618-d;
RA Muehlenhoff U., Haehnel W., Witt H.T., Herrmann R.G.;
RT "Genes encoding eleven subunits of photosystem I from the thermophilic
RT cyanobacterium Synechococcus sp.";
RL Gene 127:71-78(1993).
RN [2]
RP PROTEIN SEQUENCE OF 5-77.
RX PubMed=1812486;
RA Jone C.S., Kotani N., Aso K., Yang L., Enami I., Kondo K., Tsugita A.;
RT "Amino acid sequence of the 8-kDa protein in photosystem I reaction center
RT complex from a thermophilic cyanobacterium, Synechococcus elongatus.";
RL Protein Seq. Data Anal. 4:327-331(1991).
RN [3]
RP PROTEIN SEQUENCE OF 5-35.
RX PubMed=2119498;
RA Enami I., Kaiho H., Izumi H., Katoh S., Kotani N., Jone C.S., Kamo M.,
RA Tsugita A.;
RT "N-terminal amino acid sequence analysis of small subunits of photosystem I
RT reaction center complex from a thermophilic cyanobacterium, Synechococcus
RT elongatus nageli.";
RL Protein Seq. Data Anal. 3:257-262(1990).
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 ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; X63764; CAA45298.1; -; Genomic_DNA.
DR PIR; C35567; C35567.
DR AlphaFoldDB; P0A426; -.
DR SMR; P0A426; -.
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 Direct protein sequencing; Membrane; Photosynthesis; Photosystem I;
KW Thylakoid; Transmembrane; Transmembrane helix.
FT PROPEP 1..4
FT /evidence="ECO:0000269|PubMed:1812486,
FT ECO:0000269|PubMed:2119498"
FT /id="PRO_0000029404"
FT CHAIN 5..83
FT /note="Photosystem I reaction center subunit PsaK"
FT /id="PRO_0000029405"
FT TRANSMEM 12..30
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 68..83
FT /note="Helical"
FT /evidence="ECO:0000255"
FT CONFLICT 11
FT /note="W -> V (in Ref. 2; AA sequence and 3; AA sequence)"
FT /evidence="ECO:0000305"
FT CONFLICT 22
FT /note="C -> S (in Ref. 3; AA sequence)"
FT /evidence="ECO:0000305"
FT CONFLICT 22
FT /note="Missing (in Ref. 2; AA sequence)"
FT /evidence="ECO:0000305"
SQ SEQUENCE 83 AA; 8480 MW; 76E2ECADEF75182E CRC64;
MVLATLPDTT WTPSVGLVVI LCNLFAIALG RYAIQSRGKG PGLPIALPAL FEGFGLPELL
ATTSFGHLLA AGVVSGLQYA GAL
