ID   P2SAF_SPIOL             Reviewed;          20 AA.
AC   P85303;
DT   23-OCT-2007, integrated into UniProtKB/Swiss-Prot.
DT   23-OCT-2007, sequence version 1.
DT   03-AUG-2022, entry version 20.
DE   RecName: Full=Photosystem II stability/assembly factor HCF136, chloroplastic;
DE   Flags: Fragment;
GN   Name=HCF136 {ECO:0000250|UniProtKB:O82660};
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] {ECO:0000305}
RP   PROTEIN SEQUENCE, AND SUBCELLULAR LOCATION.
RC   TISSUE=Leaf {ECO:0000269|PubMed:11719511};
RX   PubMed=11719511; DOI=10.1074/jbc.m108575200;
RA   Schubert M., Petersson U.A., Haas B.J., Funk C., Schroeder W.P.,
RA   Kieselbach T.;
RT   "Proteome map of the chloroplast lumen of Arabidopsis thaliana.";
RL   J. Biol. Chem. 277:8354-8365(2002).
CC   -!- FUNCTION: Essential for photosystem II (PSII) biogenesis; required for
CC       assembly of an early intermediate in PSII assembly that includes D2
CC       (psbD) and cytochrome b559. {ECO:0000250|UniProtKB:O82660}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid lumen
CC       {ECO:0000269|PubMed:11719511}. Note=Restricted to the stromal lamelae.
CC       Translocation into the thylakoid lumen occurs via the Tat pathway.
CC       {ECO:0000305|PubMed:11719511}.
CC   -!- DOMAIN: A 7-bladed beta-propeller torus, about 54 by 55 Angstroms, with
CC       a depth of about 25 Angstroms and a central pore.
CC       {ECO:0000250|UniProtKB:M1VJU3}.
CC   -!- SIMILARITY: Belongs to the Ycf48 family. {ECO:0000305}.
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DR   AlphaFoldDB; P85303; -.
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.
PE   1: Evidence at protein level;
KW   Chloroplast; Direct protein sequencing; Photosynthesis; Photosystem II;
KW   Plastid; Thylakoid.
FT   CHAIN           1..>20
FT                   /note="Photosystem II stability/assembly factor HCF136,
FT                   chloroplastic"
FT                   /id="PRO_0000308516"
FT   NON_TER         20
FT                   /evidence="ECO:0000303|PubMed:11719511"
SQ   SEQUENCE   20 AA;  2303 MW;  E093DA5002883F55 CRC64;
     EDSLSDWERV YLPIDPGVVL