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Database: UniProt
Entry: D3WDL6_CORFO
LinkDB: D3WDL6_CORFO
Original site: D3WDL6_CORFO 
ID   D3WDL6_CORFO            Unreviewed;        83 AA.
AC   D3WDL6;
DT   20-APR-2010, integrated into UniProtKB/TrEMBL.
DT   20-APR-2010, sequence version 1.
DT   24-JAN-2024, entry version 50.
DE   RecName: Full=Cytochrome b559 subunit alpha {ECO:0000256|HAMAP-Rule:MF_00642, ECO:0000256|RuleBase:RU000619};
DE   AltName: Full=PSII reaction center subunit V {ECO:0000256|HAMAP-Rule:MF_00642, ECO:0000256|RuleBase:RU004529};
GN   Name=psbE {ECO:0000256|HAMAP-Rule:MF_00642,
GN   ECO:0000313|EMBL:ADD30556.1};
OS   Cornus florida (Flowering dogwood).
OG   Plastid; Chloroplast {ECO:0000313|EMBL:ADD30556.1}.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; Cornales; Cornaceae; Cornus.
OX   NCBI_TaxID=4283 {ECO:0000313|EMBL:ADD30556.1};
RN   [1] {ECO:0000313|EMBL:ADD30556.1}
RP   NUCLEOTIDE SEQUENCE.
RX   PubMed=20176954; DOI=10.1073/pnas.0907801107;
RA   Moore M.J., Soltis P.S., Bell C.D., Burleigh J.G., Soltis D.E.;
RT   "Phylogenetic analysis of 83 plastid genes further resolves the early
RT   diversification of eudicots.";
RL   Proc. Natl. Acad. Sci. U.S.A. 107:4623-4628(2010).
RN   [2] {ECO:0000313|EMBL:QEJ84643.1}
RP   NUCLEOTIDE SEQUENCE.
RC   STRAIN=FCN1799 {ECO:0000313|EMBL:QEJ84643.1};
RX   PubMed=31445202;
RA   Fu C.N., Mo Z.Q., Yang J.B., Ge X.J., Li D.Z., Jenny Xiang Q.Y., Gao L.M.;
RT   "Plastid phylogenomics and biogeographic analysis support a trans-Tethyan
RT   origin and rapid early radiation of Cornales in the Mid-Cretaceous.";
RL   Mol. Phylogenet. Evol. 106601:0-0(2019).
RN   [3] {ECO:0000313|EMBL:QEJ84643.1}
RP   NUCLEOTIDE SEQUENCE.
RC   STRAIN=FCN1799 {ECO:0000313|EMBL:QEJ84643.1};
RA   Fu C., Mo Z., Yang J., Ge X., Li D., Xiang J., Gao L.;
RL   Submitted (AUG-2019) 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:0000256|HAMAP-Rule:MF_00642, ECO:0000256|RuleBase:RU004529}.
CC   -!- COFACTOR:
CC       Name=heme b; Xref=ChEBI:CHEBI:60344;
CC         Evidence={ECO:0000256|HAMAP-Rule:MF_00642};
CC       Note=With its partner (PsbF) binds heme. PSII binds additional
CC       chlorophylls, carotenoids and specific lipids. {ECO:0000256|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       Psb30/Ycf12, at least 3 peripheral proteins of the oxygen-evolving
CC       complex and a large number of cofactors. It forms dimeric complexes.
CC       {ECO:0000256|HAMAP-Rule:MF_00642}.
CC   -!- SUBCELLULAR LOCATION: Membrane {ECO:0000256|ARBA:ARBA00004167}; Single-
CC       pass membrane protein {ECO:0000256|ARBA:ARBA00004167}. Plastid,
CC       chloroplast thylakoid membrane {ECO:0000256|HAMAP-Rule:MF_00642,
CC       ECO:0000256|RuleBase:RU004529}; Single-pass membrane protein
CC       {ECO:0000256|HAMAP-Rule:MF_00642, ECO:0000256|RuleBase:RU004529}.
CC   -!- SIMILARITY: Belongs to the PsbE/PsbF family. {ECO:0000256|HAMAP-
CC       Rule:MF_00642, ECO:0000256|RuleBase:RU004529}.
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DR   EMBL; GQ998108; ADD30556.1; -; Genomic_DNA.
DR   EMBL; MN380670; QEJ84643.1; -; Genomic_DNA.
DR   AlphaFoldDB; D3WDL6; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
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; Photosystem II cytochrome b559, alpha subunit; 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   NCBIfam; TIGR01332; cyt_b559_alpha; 1.
DR   PANTHER; PTHR33391; CYTOCHROME B559 SUBUNIT BETA-RELATED; 1.
DR   PANTHER; PTHR33391:SF9; CYTOCHROME B559 SUBUNIT BETA-RELATED; 1.
DR   Pfam; PF00283; Cytochrom_B559; 1.
DR   Pfam; PF00284; Cytochrom_B559a; 1.
DR   PIRSF; PIRSF000036; PsbE; 1.
DR   SUPFAM; SSF161045; Cytochrome b559 subunits; 1.
DR   PROSITE; PS00537; CYTOCHROME_B559; 1.
PE   3: Inferred from homology;
KW   Chloroplast {ECO:0000256|RuleBase:RU004529, ECO:0000313|EMBL:ADD30556.1};
KW   Electron transport {ECO:0000256|ARBA:ARBA00022982, ECO:0000256|HAMAP-
KW   Rule:MF_00642};
KW   Heme {ECO:0000256|ARBA:ARBA00022617, ECO:0000256|HAMAP-Rule:MF_00642};
KW   Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_00642};
KW   Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|HAMAP-Rule:MF_00642};
KW   Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW   Rule:MF_00642};
KW   Photosynthesis {ECO:0000256|ARBA:ARBA00022531, ECO:0000256|HAMAP-
KW   Rule:MF_00642};
KW   Photosystem II {ECO:0000256|ARBA:ARBA00023276, ECO:0000256|HAMAP-
KW   Rule:MF_00642}; Plastid {ECO:0000313|EMBL:ADD30556.1};
KW   Thylakoid {ECO:0000256|HAMAP-Rule:MF_00642};
KW   Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|HAMAP-
KW   Rule:MF_00642};
KW   Transmembrane helix {ECO:0000256|ARBA:ARBA00022989, ECO:0000256|HAMAP-
KW   Rule:MF_00642};
KW   Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|HAMAP-Rule:MF_00642}.
FT   TRANSMEM        20..44
FT                   /note="Helical"
FT                   /evidence="ECO:0000256|RuleBase:RU004529"
FT   DOMAIN          6..34
FT                   /note="Photosystem II cytochrome b559 N-terminal"
FT                   /evidence="ECO:0000259|Pfam:PF00283"
FT   DOMAIN          42..80
FT                   /note="Photosystem II cytochrome b559 alpha subunit lumenal
FT                   region"
FT                   /evidence="ECO:0000259|Pfam:PF00284"
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:0000256|HAMAP-Rule:MF_00642"
SQ   SEQUENCE   83 AA;  9424 MW;  F1E39199F5BACDDE CRC64;
     MSGSTGERSF ADIITSIRYW VIHSITIPSL FIAGWLFVST GLAYDVFGSP RPNEYFTESR
     QGIPLITGRF DPLEQLDEFN RSF
//
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