PSBQ_SPIOL
ID PSBQ_SPIOL Reviewed; 232 AA.
AC P12301;
DT 01-OCT-1989, integrated into UniProtKB/Swiss-Prot.
DT 01-OCT-1989, sequence version 1.
DT 25-MAY-2022, entry version 101.
DE RecName: Full=Oxygen-evolving enhancer protein 3, chloroplastic;
DE Short=OEE3;
DE AltName: Full=16 kDa subunit of oxygen evolving system of photosystem II;
DE AltName: Full=OEC 16 kDa subunit;
DE Flags: Precursor;
GN Name=PSBQ;
OS Spinacia oleracea (Spinach).
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC Caryophyllales; Chenopodiaceae; Chenopodioideae; Anserineae; Spinacia.
OX NCBI_TaxID=3562;
RN [1]
RP NUCLEOTIDE SEQUENCE [MRNA].
RA Jansen T., Steppuhn R.C.J., Reinke H., Beyreuther K., Jansson C.,
RA Andersson B., Herrmann R.G.;
RT "Nucleotide sequence of cDNA clones encoding the complete '23 kDa' and '16
RT kDa' precursor proteins associated with the photosynthetic oxygen-evolving
RT complex from spinach.";
RL FEBS Lett. 216:234-240(1987).
RN [2]
RP PROTEIN SEQUENCE OF 84-127.
RA Kuwabara T., Murata T., Miyao M., Murata N.;
RT "Partial degradation of the 18-kDa protein of the photosynthetic oxygen-
RT evolving complex: a study of a binding site.";
RL Biochim. Biophys. Acta 850:146-155(1986).
RN [3]
RP PROTEIN SEQUENCE OF 84-111.
RX PubMed=2687273; DOI=10.1016/s0021-9258(19)30053-5;
RA Soncini F.C., Vallejos R.H.;
RT "The chloroplast reductase-binding protein is identical to the 16.5-kDa
RT polypeptide described as a component of the oxygen-evolving complex.";
RL J. Biol. Chem. 264:21112-21115(1989).
RN [4]
RP PROTEIN SEQUENCE OF 84-127.
RA Murata N., Kajiura H., Fujimura Y., Miyao M., Murata T., Watanabe A.,
RA Shinozaki K.;
RT "Partial amino acid sequences of the proteins of pea and spinach
RT photosystem II complex.";
RL Prog. Photosyn. Res. 1:701-704(1987).
RN [5]
RP PROTEIN SEQUENCE OF 84-107.
RA Schroeder W.P., Henrysson T., Aakerlund H.-E.;
RT "Characterization of low molecular mass proteins of photosystem II by N-
RT terminal sequencing.";
RL FEBS Lett. 235:289-292(1988).
CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane.
CC Note=Associated with the photosystem II complex.
CC -!- SIMILARITY: Belongs to the psbQ family. {ECO:0000305}.
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DR EMBL; X05512; CAA29056.1; -; mRNA.
DR PIR; S00008; S00008.
DR PDB; 1NZE; X-ray; 1.95 A; A=84-232.
DR PDB; 1VYK; X-ray; 1.49 A; A=84-232.
DR PDB; 2MWQ; NMR; -; A=84-232.
DR PDB; 3JCU; EM; 3.20 A; Q/q=1-232.
DR PDBsum; 1NZE; -.
DR PDBsum; 1VYK; -.
DR PDBsum; 2MWQ; -.
DR PDBsum; 3JCU; -.
DR AlphaFoldDB; P12301; -.
DR BMRB; P12301; -.
DR SMR; P12301; -.
DR DIP; DIP-62022N; -.
DR IntAct; P12301; 1.
DR OrthoDB; 1248380at2759; -.
DR EvolutionaryTrace; P12301; -.
DR GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
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:0005509; F:calcium ion binding; IEA:InterPro.
DR GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR DisProt; DP01660; -.
DR Gene3D; 1.20.120.290; -; 1.
DR InterPro; IPR023222; PsbQ-like_dom_sf.
DR InterPro; IPR008797; PSII_PsbQ.
DR PANTHER; PTHR33399; PTHR33399; 1.
DR Pfam; PF05757; PsbQ; 1.
DR SUPFAM; SSF101112; SSF101112; 1.
PE 1: Evidence at protein level;
KW 3D-structure; Chloroplast; Direct protein sequencing; Membrane;
KW Photosynthesis; Photosystem II; Plastid; Thylakoid; Transit peptide.
FT TRANSIT 1..83
FT /note="Chloroplast"
FT /evidence="ECO:0000269|PubMed:2687273, ECO:0000269|Ref.2,
FT ECO:0000269|Ref.4, ECO:0000269|Ref.5"
FT CHAIN 84..232
FT /note="Oxygen-evolving enhancer protein 3, chloroplastic"
FT /id="PRO_0000029595"
FT REGION 92..111
FT /note="Disordered"
FT /evidence="ECO:0000256|SAM:MobiDB-lite"
FT STRAND 99..101
FT /evidence="ECO:0007829|PDB:3JCU"
FT TURN 102..104
FT /evidence="ECO:0007829|PDB:3JCU"
FT TURN 106..111
FT /evidence="ECO:0007829|PDB:3JCU"
FT HELIX 117..120
FT /evidence="ECO:0007829|PDB:3JCU"
FT STRAND 121..123
FT /evidence="ECO:0007829|PDB:3JCU"
FT HELIX 128..143
FT /evidence="ECO:0007829|PDB:1VYK"
FT HELIX 146..150
FT /evidence="ECO:0007829|PDB:1VYK"
FT HELIX 154..178
FT /evidence="ECO:0007829|PDB:1VYK"
FT HELIX 181..206
FT /evidence="ECO:0007829|PDB:1VYK"
FT HELIX 210..231
FT /evidence="ECO:0007829|PDB:1VYK"
SQ SEQUENCE 232 AA; 24853 MW; ADEAB525528DD38F CRC64;
MAQAMASMAG LRGASQAVLE GSLQISGSNR LSGPTTSRVA VPKMGLNIRA QQVSAEAETS
RRAMLGFVAA GLASGSFVKA VLAEARPIVV GPPPPLSGGL PGTENSDQAR DGTLPYTKDR
FYLQPLPPTE AAQRAKVSAS EILNVKQFID RKAWPSLQND LRLRASYLRY DLKTVISAKP
KDEKKSLQEL TSKLFSSIDN LDHAAKIKSP TEAEKYYGQT VSNINEVLAK LG
