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PSBE_LACSA
ID   PSBE_LACSA              Reviewed;          83 AA.
AC   Q332W1; Q1KXK6;
DT   02-MAY-2006, integrated into UniProtKB/Swiss-Prot.
DT   06-DEC-2005, sequence version 1.
DT   03-AUG-2022, entry version 64.
DE   RecName: Full=Cytochrome b559 subunit alpha {ECO:0000255|HAMAP-Rule:MF_00642};
DE   AltName: Full=PSII reaction center subunit V {ECO:0000255|HAMAP-Rule:MF_00642};
GN   Name=psbE {ECO:0000255|HAMAP-Rule:MF_00642};
OS   Lactuca sativa (Garden lettuce).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; campanulids; Asterales; Asteraceae; Cichorioideae; Cichorieae;
OC   Lactucinae; Lactuca.
OX   NCBI_TaxID=4236;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Cisco;
RX   PubMed=16604461; DOI=10.1007/s11248-005-3997-2;
RA   Kanamoto H., Yamashita A., Asao H., Okumura S., Takase H., Hattori M.,
RA   Yokota A., Tomizawa K.;
RT   "Efficient and stable transformation of Lactuca sativa L. cv. Cisco
RT   (lettuce) plastids.";
RL   Transgenic Res. 15:205-217(2006).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Salinas;
RA   Timme R.E., Kuehl J.V., Boore J.L., Jansen R.K.;
RT   "A comparison of the first two published chloroplast genomes in Asteraceae:
RT   Lactuca and Helianthus.";
RL   Submitted (JAN-2006) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: This b-type cytochrome is tightly associated with the
CC       reaction center of photosystem II (PSII). PSII is a light-driven
CC       water:plastoquinone oxidoreductase that uses light energy to abstract
CC       electrons from H(2)O, generating O(2) and a proton gradient
CC       subsequently used for ATP formation. It consists of a core antenna
CC       complex that captures photons, and an electron transfer chain that
CC       converts photonic excitation into a charge separation.
CC       {ECO:0000255|HAMAP-Rule:MF_00642}.
CC   -!- COFACTOR:
CC       Name=heme b; Xref=ChEBI:CHEBI:60344;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00642};
CC       Note=With its partner (PsbF) binds heme. PSII binds additional
CC       chlorophylls, carotenoids and specific lipids. {ECO:0000255|HAMAP-
CC       Rule:MF_00642};
CC   -!- SUBUNIT: Heterodimer of an alpha subunit and a beta subunit. PSII is
CC       composed of 1 copy each of membrane proteins PsbA, PsbB, PsbC, PsbD,
CC       PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT, PsbX, PsbY, PsbZ,
CC       Ycf12, at least 3 peripheral proteins of the oxygen-evolving complex
CC       and a large number of cofactors. It forms dimeric complexes.
CC       {ECO:0000255|HAMAP-Rule:MF_00642}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_00642}; Single-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_00642}.
CC   -!- SIMILARITY: Belongs to the PsbE/PsbF family. {ECO:0000255|HAMAP-
CC       Rule:MF_00642}.
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DR   EMBL; AP007232; BAE47611.1; -; Genomic_DNA.
DR   EMBL; DQ383816; ABD47250.1; -; Genomic_DNA.
DR   RefSeq; YP_398346.1; NC_007578.1.
DR   AlphaFoldDB; Q332W1; -.
DR   SMR; Q332W1; -.
DR   EnsemblPlants; rna-gnl|WGS:NBSK|LSAT_1X27981_mrna; cds-PLY84613.1; gene-LSAT_1X27981.
DR   EnsemblPlants; rna-gnl|WGS:NBSK|LSAT_1X38741_mrna; cds-PLY97292.1; gene-LSAT_1X38741.
DR   EnsemblPlants; rna-gnl|WGS:NBSK|LSAT_5X176141_mrna; cds-PLY66442.1; gene-LSAT_5X176141.
DR   EnsemblPlants; rna-gnl|WGS:NBSK|LSAT_9X50921_mrna; cds-PLY93452.1; gene-LSAT_9X50921.
DR   GeneID; 3772839; -.
DR   Gramene; rna-gnl|WGS:NBSK|LSAT_1X27981_mrna; cds-PLY84613.1; gene-LSAT_1X27981.
DR   Gramene; rna-gnl|WGS:NBSK|LSAT_1X38741_mrna; cds-PLY97292.1; gene-LSAT_1X38741.
DR   Gramene; rna-gnl|WGS:NBSK|LSAT_5X176141_mrna; cds-PLY66442.1; gene-LSAT_5X176141.
DR   Gramene; rna-gnl|WGS:NBSK|LSAT_9X50921_mrna; cds-PLY93452.1; gene-LSAT_9X50921.
DR   KEGG; lsv:3772839; -.
DR   OrthoDB; 1506855at2759; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0009539; C:photosystem II reaction center; IEA:InterPro.
DR   GO; GO:0009055; F:electron transfer activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0020037; F:heme binding; IEA:InterPro.
DR   GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009767; P:photosynthetic electron transport chain; IEA:InterPro.
DR   Gene3D; 1.20.5.860; -; 1.
DR   HAMAP; MF_00642; PSII_PsbE; 1.
DR   InterPro; IPR006217; PSII_cyt_b559_asu.
DR   InterPro; IPR037025; PSII_cyt_b559_asu_sf.
DR   InterPro; IPR006216; PSII_cyt_b559_CS.
DR   InterPro; IPR013081; PSII_cyt_b559_N.
DR   InterPro; IPR013082; PSII_cytb559_asu_lum.
DR   Pfam; PF00283; Cytochrom_B559; 1.
DR   Pfam; PF00284; Cytochrom_B559a; 1.
DR   PIRSF; PIRSF000036; PsbE; 1.
DR   TIGRFAMs; TIGR01332; cyt_b559_alpha; 1.
DR   PROSITE; PS00537; CYTOCHROME_B559; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Electron transport; Heme; Iron; Membrane; Metal-binding;
KW   Photosynthesis; Photosystem II; Plastid; Thylakoid; Transmembrane;
KW   Transmembrane helix; Transport.
FT   CHAIN           1..83
FT                   /note="Cytochrome b559 subunit alpha"
FT                   /id="PRO_0000233204"
FT   TRANSMEM        21..35
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00642"
FT   BINDING         23
FT                   /ligand="heme"
FT                   /ligand_id="ChEBI:CHEBI:30413"
FT                   /ligand_note="ligand shared with beta subunit"
FT                   /ligand_part="Fe"
FT                   /ligand_part_id="ChEBI:CHEBI:18248"
FT                   /note="axial binding residue"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00642"
SQ   SEQUENCE   83 AA;  9414 MW;  ED325C8BCABACDDE CRC64;
     MSGSTGERSF ADIITSIRYW VIHSITIPSL FIAGWLFVST GLAYDVFGSP RPNEYFTENR
     QGIPLITGRF DSLEQLDEFS RSF
 
 
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