PSAK2_SYNY3
ID PSAK2_SYNY3 Reviewed; 90 AA.
AC P74564;
DT 02-AUG-2002, integrated into UniProtKB/Swiss-Prot.
DT 02-AUG-2002, sequence version 2.
DT 03-AUG-2022, entry version 128.
DE RecName: Full=Photosystem I reaction center subunit PsaK 2;
DE AltName: Full=Photosystem I subunit X 2;
DE Flags: Precursor;
GN Name=psaK2; OrderedLocusNames=sll0629;
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 [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).
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000250}; Multi-
CC pass membrane protein {ECO:0000250}.
CC -!- SIMILARITY: Belongs to the PsaG/PsaK family. {ECO:0000305}.
CC -!- SEQUENCE CAUTION:
CC Sequence=BAA18671.1; Type=Erroneous initiation; Note=Extended N-terminus.; Evidence={ECO:0000305};
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DR EMBL; BA000022; BAA18671.1; ALT_INIT; Genomic_DNA.
DR PIR; S76759; S76759.
DR PDB; 4KT0; X-ray; 2.80 A; K=1-90.
DR PDB; 4L6V; X-ray; 3.80 A; 0/K/k=1-90.
DR PDB; 6HQB; X-ray; 4.00 A; K=18-87.
DR PDB; 6UZV; EM; 3.10 A; 8/K/k=1-90.
DR PDB; 7O1V; EM; 4.31 A; K=8-87.
DR PDBsum; 4KT0; -.
DR PDBsum; 4L6V; -.
DR PDBsum; 6HQB; -.
DR PDBsum; 6UZV; -.
DR PDBsum; 7O1V; -.
DR AlphaFoldDB; P74564; -.
DR SMR; P74564; -.
DR STRING; 1148.1653760; -.
DR PaxDb; P74564; -.
DR EnsemblBacteria; BAA18671; BAA18671; BAA18671.
DR KEGG; syn:sll0629; -.
DR eggNOG; ENOG503323W; Bacteria.
DR OMA; FAIQKTG; -.
DR BioCyc; MetaCyc:MON-16589; -.
DR Proteomes; UP000001425; 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..?
FT /evidence="ECO:0000255"
FT /id="PRO_0000029410"
FT CHAIN ?..90
FT /note="Photosystem I reaction center subunit PsaK 2"
FT /id="PRO_0000029411"
FT TRANSMEM 20..42
FT /note="Helical"
FT /evidence="ECO:0000255"
FT TRANSMEM 67..89
FT /note="Helical"
FT /evidence="ECO:0000255"
FT HELIX 18..37
FT /evidence="ECO:0007829|PDB:4KT0"
FT HELIX 53..57
FT /evidence="ECO:0007829|PDB:6UZV"
FT HELIX 64..66
FT /evidence="ECO:0007829|PDB:4KT0"
FT HELIX 67..88
FT /evidence="ECO:0007829|PDB:4KT0"
SQ SEQUENCE 90 AA; 9306 MW; 1D1C642D3D12589B CRC64;
MFNTALLLAQ ASPTTAGWSL SVGIIMCLCN VFAFVIGYFA IQKTGKGKDL ALPQLASKKT
FGLPELLATM SFGHILGAGM VLGLASSGIL
