PSBK_SYNS3
ID PSBK_SYNS3 Reviewed; 47 AA.
AC Q0IDF4;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 03-OCT-2006, sequence version 1.
DT 25-MAY-2022, entry version 77.
DE RecName: Full=Photosystem II reaction center protein K {ECO:0000255|HAMAP-Rule:MF_00441};
DE Short=PSII-K {ECO:0000255|HAMAP-Rule:MF_00441};
DE Flags: Precursor;
GN Name=psbK {ECO:0000255|HAMAP-Rule:MF_00441}; OrderedLocusNames=sync_0283;
OS Synechococcus sp. (strain CC9311).
OC Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC unclassified Synechococcus.
OX NCBI_TaxID=64471;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=CC9311;
RX PubMed=16938853; DOI=10.1073/pnas.0602963103;
RA Palenik B., Ren Q., Dupont C.L., Myers G.S., Heidelberg J.F., Badger J.H.,
RA Madupu R., Nelson W.C., Brinkac L.M., Dodson R.J., Durkin A.S.,
RA Daugherty S.C., Sullivan S.A., Khouri H., Mohamoud Y., Halpin R.,
RA Paulsen I.T.;
RT "Genome sequence of Synechococcus CC9311: insights into adaptation to a
RT coastal environment.";
RL Proc. Natl. Acad. Sci. U.S.A. 103:13555-13559(2006).
CC -!- FUNCTION: One of the components of the core complex of photosystem II
CC (PSII). PSII is a light-driven water:plastoquinone oxidoreductase that
CC uses light energy to abstract electrons from H(2)O, generating O(2) and
CC a proton gradient subsequently used for ATP formation. It consists of a
CC core antenna complex that captures photons, and an electron transfer
CC chain that converts photonic excitation into a charge separation.
CC {ECO:0000255|HAMAP-Rule:MF_00441}.
CC -!- SUBUNIT: Cyanobacterial PSII is composed of 1 copy each of membrane
CC proteins PsbA, PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK,
CC PsbL, PsbM, PsbT, PsbX, PsbY, PsbZ, Ycf12, at least 3 peripheral
CC proteins PsbO, PsbU, PsbV and a large number of cofactors. It forms
CC dimeric complexes. {ECO:0000255|HAMAP-Rule:MF_00441}.
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC Rule:MF_00441}; Single-pass membrane protein {ECO:0000255|HAMAP-
CC Rule:MF_00441}.
CC -!- SIMILARITY: Belongs to the PsbK family. {ECO:0000255|HAMAP-
CC Rule:MF_00441}.
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DR EMBL; CP000435; ABI46663.1; -; Genomic_DNA.
DR RefSeq; WP_011618263.1; NC_008319.1.
DR AlphaFoldDB; Q0IDF4; -.
DR SMR; Q0IDF4; -.
DR STRING; 64471.sync_0283; -.
DR EnsemblBacteria; ABI46663; ABI46663; sync_0283.
DR KEGG; syg:sync_0283; -.
DR eggNOG; ENOG5032YQR; Bacteria.
DR HOGENOM; CLU_174355_0_0_3; -.
DR Proteomes; UP000001961; Chromosome.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0009539; C:photosystem II reaction center; IEA:InterPro.
DR GO; GO:0031676; C:plasma membrane-derived thylakoid membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule.
DR HAMAP; MF_00441; PSII_PsbK; 1.
DR InterPro; IPR003687; PSII_PsbK.
DR InterPro; IPR037270; PSII_PsbK_sf.
DR PANTHER; PTHR35325; PTHR35325; 1.
DR Pfam; PF02533; PsbK; 1.
DR SUPFAM; SSF161037; SSF161037; 1.
PE 3: Inferred from homology;
KW Membrane; Photosynthesis; Photosystem II; Reaction center;
KW Reference proteome; Thylakoid; Transmembrane; Transmembrane helix.
FT PROPEP 1..10
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00441"
FT /id="PRO_0000316081"
FT CHAIN 11..47
FT /note="Photosystem II reaction center protein K"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00441"
FT /id="PRO_1000025986"
FT TRANSMEM 19..39
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00441"
SQ SEQUENCE 47 AA; 5296 MW; D2086C0B8603B54A CRC64;
MAVYTLDLLA QLPEAYQAFG PLIDILPIIP LFFLLLAFVW QASVGFR