PSBU_GLOC7
ID PSBU_GLOC7 Reviewed; 123 AA.
AC B7KC39;
DT 14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT 10-FEB-2009, sequence version 1.
DT 03-AUG-2022, entry version 57.
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=PCC7424_0395;
OS Gloeothece citriformis (strain PCC 7424) (Cyanothece sp. (strain PCC
OS 7424)).
OC Bacteria; Cyanobacteria; Oscillatoriophycideae; Chroococcales;
OC Aphanothecaceae; Gloeothece; Gloeothece citriformis.
OX NCBI_TaxID=65393;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 7424;
RX PubMed=21972240; DOI=10.1128/mbio.00214-11;
RA Bandyopadhyay A., Elvitigala T., Welsh E., Stockel J., Liberton M., Min H.,
RA Sherman L.A., Pakrasi H.B.;
RT "Novel metabolic attributes of the genus Cyanothece, comprising a group of
RT unicellular nitrogen-fixing Cyanobacteria.";
RL MBio 2:E214-E214(2011).
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; CP001291; ACK68862.1; -; Genomic_DNA.
DR RefSeq; WP_012597812.1; NC_011729.1.
DR AlphaFoldDB; B7KC39; -.
DR SMR; B7KC39; -.
DR STRING; 65393.PCC7424_0395; -.
DR EnsemblBacteria; ACK68862; ACK68862; PCC7424_0395.
DR KEGG; cyc:PCC7424_0395; -.
DR eggNOG; COG1555; Bacteria.
DR HOGENOM; CLU_141240_1_0_3; -.
DR OMA; LLGCWGW; -.
DR OrthoDB; 1626529at2; -.
DR Proteomes; UP000002384; 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..28
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00589"
FT CHAIN 29..123
FT /note="Photosystem II 12 kDa extrinsic protein"
FT /id="PRO_5000418247"
SQ SEQUENCE 123 AA; 13842 MW; B0DE23CCD8D7CBD3 CRC64;
MKTLARILVV FTLIVGLIGF FNPLPAQAAL NAVDAKLTTE FGQKIDLNNS HIREFRDLRG
FYPNLASKII KNAPYDKVED VLNIPGLSER QQERLQANLD KFTVTEPSKE LIEGDDRINP
GVY