PSBU_SYNPW
ID PSBU_SYNPW Reviewed; 125 AA.
AC A5GNW4;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 12-JUN-2007, sequence version 1.
DT 25-MAY-2022, entry version 72.
DE RecName: Full=Photosystem II 12 kDa extrinsic protein {ECO:0000255|HAMAP-Rule:MF_00589};
DE AltName: Full=PS II complex 12 kDa extrinsic protein {ECO:0000255|HAMAP-Rule:MF_00589};
DE AltName: Full=PSII-U {ECO:0000255|HAMAP-Rule:MF_00589};
DE Flags: Precursor;
GN Name=psbU {ECO:0000255|HAMAP-Rule:MF_00589};
GN OrderedLocusNames=SynWH7803_2203;
OS Synechococcus sp. (strain WH7803).
OC Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC unclassified Synechococcus.
OX NCBI_TaxID=32051;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=WH7803;
RG Genoscope;
RL Submitted (MAY-2006) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Stabilizes the structure of photosystem II oxygen-evolving
CC complex (OEC), the ion environment of oxygen evolution and protects the
CC OEC against heat-induced inactivation. {ECO:0000255|HAMAP-
CC Rule:MF_00589}.
CC -!- SUBUNIT: With PsbO,P,Q and V forms the oxygen-evolving complex of
CC photosystem II. {ECO:0000255|HAMAP-Rule:MF_00589}.
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC Rule:MF_00589}; Peripheral membrane protein {ECO:0000255|HAMAP-
CC Rule:MF_00589}; Lumenal side {ECO:0000255|HAMAP-Rule:MF_00589}.
CC Note=Associated with photosystem II at the Lumenal side of the
CC thylakoid membrane. {ECO:0000255|HAMAP-Rule:MF_00589}.
CC -!- SIMILARITY: Belongs to the PsbU family. {ECO:0000255|HAMAP-
CC Rule:MF_00589}.
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DR EMBL; CT971583; CAK24629.1; -; Genomic_DNA.
DR RefSeq; WP_011934091.1; NC_009481.1.
DR AlphaFoldDB; A5GNW4; -.
DR SMR; A5GNW4; -.
DR STRING; 32051.SynWH7803_2203; -.
DR EnsemblBacteria; CAK24629; CAK24629; SynWH7803_2203.
DR KEGG; syx:SynWH7803_2203; -.
DR eggNOG; COG1555; Bacteria.
DR HOGENOM; CLU_141240_1_0_3; -.
DR OMA; LLGCWGW; -.
DR OrthoDB; 1626529at2; -.
DR Proteomes; UP000001566; Chromosome.
DR GO; GO:0019898; C:extrinsic component of membrane; IEA:InterPro.
DR GO; GO:0009654; C:photosystem II oxygen evolving complex; 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 GO; GO:0042549; P:photosystem II stabilization; IEA:InterPro.
DR HAMAP; MF_00589; PSII_PsbU; 1.
DR InterPro; IPR010527; PSII_PsbU.
DR Pfam; PF06514; PsbU; 1.
PE 3: Inferred from homology;
KW Electron transport; Membrane; Photosynthesis; Photosystem II;
KW Reference proteome; Signal; Thylakoid; Transport.
FT SIGNAL 1..29
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00589"
FT CHAIN 30..125
FT /note="Photosystem II 12 kDa extrinsic protein"
FT /id="PRO_1000025486"
SQ SEQUENCE 125 AA; 13898 MW; 50881E35D52968DA CRC64;
MKRLLSWLTG LVVMAGLLFS LATPSGVQAA DIRNVADDKI AERGDKVDLN NSSVRRFQQF
PGMYPTLAGK IVLGGPYESV DDVLALDLTD RQKELFEKYR DNFTVTAPSI ALNEGFDRIN
DGQYR