ID   YCF48_SYNJB             Reviewed;         333 AA.
AC   Q2JJR3;
DT   13-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT   07-MAR-2006, sequence version 1.
DT   03-AUG-2022, entry version 75.
DE   RecName: Full=Photosystem II assembly protein Ycf48 {ECO:0000255|HAMAP-Rule:MF_01348};
DE   Flags: Precursor;
GN   Name=ycf48 {ECO:0000255|HAMAP-Rule:MF_01348}; OrderedLocusNames=CYB_2153;
OS   Synechococcus sp. (strain JA-2-3B'a(2-13)) (Cyanobacteria bacterium
OS   Yellowstone B-Prime).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC   unclassified Synechococcus.
OX   NCBI_TaxID=321332;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=JA-2-3B'a(2-13);
RX   PubMed=18059494; DOI=10.1038/ismej.2007.46;
RA   Bhaya D., Grossman A.R., Steunou A.-S., Khuri N., Cohan F.M., Hamamura N.,
RA   Melendrez M.C., Bateson M.M., Ward D.M., Heidelberg J.F.;
RT   "Population level functional diversity in a microbial community revealed by
RT   comparative genomic and metagenomic analyses.";
RL   ISME J. 1:703-713(2007).
CC   -!- FUNCTION: A factor required for optimal assembly of photosystem II
CC       (PSII), acting in the early stages of PSII assembly. Also plays a role
CC       in replacement of photodamaged D1 (psbA). Assists YidC in synthesis of
CC       chlorophyll-binding proteins. {ECO:0000255|HAMAP-Rule:MF_01348}.
CC   -!- SUBUNIT: Part of early PSII assembly complexes which includes D1 (psbA)
CC       and PsbI; not found in mature PSII. Binds to the lumenal side of PSII
CC       complexes. Interacts with YidC. {ECO:0000255|HAMAP-Rule:MF_01348}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid lumen {ECO:0000255|HAMAP-
CC       Rule:MF_01348}. Note=Associated with a PSII precusor complex on the
CC       lumenal side of the thylakoid membrane. {ECO:0000255|HAMAP-
CC       Rule:MF_01348}.
CC   -!- DOMAIN: A 7-bladed beta-propeller torus, about 55 by 55 Angstroms, with
CC       a depth of about 25 Angstroms and a central pore. {ECO:0000255|HAMAP-
CC       Rule:MF_01348}.
CC   -!- SIMILARITY: Belongs to the Ycf48 family. {ECO:0000255|HAMAP-
CC       Rule:MF_01348}.
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DR   EMBL; CP000240; ABD03099.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q2JJR3; -.
DR   SMR; Q2JJR3; -.
DR   STRING; 321332.CYB_2153; -.
DR   KEGG; cyb:CYB_2153; -.
DR   eggNOG; COG4447; Bacteria.
DR   HOGENOM; CLU_057027_0_0_3; -.
DR   OMA; EGWIAGQ; -.
DR   Proteomes; UP000001938; Chromosome.
DR   Gene3D; 2.130.10.10; -; 1.
DR   HAMAP; MF_01348; Ycf48; 1.
DR   InterPro; IPR028203; PSII_CF48-like_dom.
DR   InterPro; IPR015943; WD40/YVTN_repeat-like_dom_sf.
DR   InterPro; IPR016705; Ycf48/Hcf136.
DR   Pfam; PF14870; PSII_BNR; 1.
DR   PIRSF; PIRSF017875; PSII_HCF136; 1.
PE   3: Inferred from homology;
KW   Photosynthesis; Photosystem II; Reference proteome; Signal; Thylakoid.
FT   SIGNAL          1..25
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01348"
FT   CHAIN           26..333
FT                   /note="Photosystem II assembly protein Ycf48"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01348"
FT                   /id="PRO_0000239683"
SQ   SEQUENCE   333 AA;  36651 MW;  EEF2A27CEF873EDC CRC64;
     MRVKMFKPLR LVLLIAVSVL LMAARMPNMR VVPWQQVEVP TQNILLDIAF TGTTPSHGWL
     VGDKATLLES RDGGLHWQVR ELPGLEPEAY LASISFAGAE GWVAGQPKIL LHTLNEGSDW
     TSIRLNNQLP GEPLLIQALG PGAAEMVTNV GAIYRTEDGG QTWHAQVDEP IGAIKNIARG
     PEGEYLAVSS RGSFYFLYTP ESRTWKPYPR ESSRRIQNMG FGPHGSAWKL NQGAEIAFTD
     DFTSGQWSSP LRPGRALSFG YLNAAYQNDH DLWVVGGGAT LIHSPDGGKT WEQAKKLSNI
     PANFYSIEFF GPEQGFILGQ RGTLLRYVSS NNS