PSBK_PROM3
ID PSBK_PROM3 Reviewed; 47 AA.
AC A2CCL2;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 20-FEB-2007, sequence version 1.
DT 03-AUG-2022, entry version 75.
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=P9303_24911;
OS Prochlorococcus marinus (strain MIT 9303).
OC Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC Prochlorococcus.
OX NCBI_TaxID=59922;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=MIT 9303;
RX PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA Richardson P., Chisholm S.W.;
RT "Patterns and implications of gene gain and loss in the evolution of
RT Prochlorococcus.";
RL PLoS Genet. 3:2515-2528(2007).
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}.
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; CP000554; ABM79222.1; -; Genomic_DNA.
DR AlphaFoldDB; A2CCL2; -.
DR SMR; A2CCL2; -.
DR STRING; 59922.P9303_24911; -.
DR EnsemblBacteria; ABM79222; ABM79222; P9303_24911.
DR KEGG; pmf:P9303_24911; -.
DR HOGENOM; CLU_174355_0_0_3; -.
DR BioCyc; PMAR59922:G1G80-2181-MON; -.
DR Proteomes; UP000002274; 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; Thylakoid;
KW Transmembrane; Transmembrane helix.
FT PROPEP 1..10
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00441"
FT /id="PRO_0000316076"
FT CHAIN 11..47
FT /note="Photosystem II reaction center protein K"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00441"
FT /id="PRO_1000025979"
FT TRANSMEM 20..40
FT /note="Helical"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00441"
SQ SEQUENCE 47 AA; 5292 MW; 7057F144752CF6B6 CRC64;
MAAFTLDLMA QLPEAYQAYA PAVDVLPLIP IFFFLLVFVW QASVGFR