ID   PSBW_WHEAT              Reviewed;          20 AA.
AC   P55967;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1997, sequence version 1.
DT   25-MAY-2022, entry version 54.
DE   RecName: Full=Photosystem II reaction center W protein;
DE   AltName: Full=PSII 6.1 kDa protein;
DE   Flags: Fragment;
GN   Name=psbW;
OS   Triticum aestivum (Wheat).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; BOP clade;
OC   Pooideae; Triticodae; Triticeae; Triticinae; Triticum.
OX   NCBI_TaxID=4565;
RN   [1]
RP   PROTEIN SEQUENCE, SUBUNIT, AND SUBCELLULAR LOCATION.
RX   PubMed=2644131; DOI=10.1016/0014-5793(89)80482-x;
RA   Ikeuchi M., Takio K., Inoue Y.;
RT   "N-terminal sequencing of photosystem II low-molecular-mass proteins. 5 and
RT   4.1 kDa components of the O2-evolving core complex from higher plants.";
RL   FEBS Lett. 242:263-269(1989).
CC   -!- FUNCTION: Stabilizes dimeric photosystem II (PSII). In its absence no
CC       dimeric PSII accumulates and there is a reduction of monomeric PSII (By
CC       similarity). {ECO:0000250|UniProtKB:Q39194}.
CC   -!- SUBUNIT: Part of the photosystem II complex. PSII is composed of 1 copy
CC       each of membrane proteins PsbA, PsbB, PsbC, PsbD, numerous small
CC       proteins, at least 3 peripheral proteins of the oxygen-evolving complex
CC       and a large number of cofactors. It forms dimeric complexes.
CC       {ECO:0000250|UniProtKB:Q41387, ECO:0000269|PubMed:2644131}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000269|PubMed:2644131}; Single-pass membrane protein
CC       {ECO:0000250}. Note=The N-terminus is found within the thylakoid lumen
CC       (By similarity). {ECO:0000250|UniProtKB:Q41387}.
CC   -!- SIMILARITY: Belongs to the psbW family. {ECO:0000305}.
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DR   AlphaFoldDB; P55967; -.
DR   STRING; 4565.Traes_1AL_B5CB664F1.2; -.
DR   eggNOG; ENOG502S50E; Eukaryota.
DR   Proteomes; UP000019116; Unplaced.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0009523; C:photosystem II; IEA:UniProtKB-KW.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   InterPro; IPR009806; PSII_PsbW_class2.
DR   Pfam; PF07123; PsbW; 1.
PE   1: Evidence at protein level;
KW   Chloroplast; Direct protein sequencing; Membrane; Photosynthesis;
KW   Photosystem II; Plastid; Reference proteome; Thylakoid.
FT   CHAIN           1..>20
FT                   /note="Photosystem II reaction center W protein"
FT                   /id="PRO_0000217285"
FT   REGION          1..20
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   NON_TER         20
SQ   SEQUENCE   20 AA;  2093 MW;  E26468763375B5C9 CRC64;
     LVDERMSTEG TGLSLGLSNN