ID H2CPG8_COLES Unreviewed; 83 AA.
AC H2CPG8;
DT 21-MAR-2012, integrated into UniProtKB/TrEMBL.
DT 21-MAR-2012, sequence version 1.
DT 24-JAN-2024, entry version 51.
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:AEK48423.1};
GN ORFNames=Ako_p038 {ECO:0000313|EMBL:ATG83100.1};
OS Colocasia esculenta (Wild taro) (Arum esculentum).
OG Plastid; Chloroplast {ECO:0000313|EMBL:AEK48423.1}.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Liliopsida; Araceae; Aroideae; Colocasieae;
OC Colocasia.
OX NCBI_TaxID=4460 {ECO:0000313|EMBL:AEK48423.1};
RN [1] {ECO:0000313|EMBL:AEK48423.1}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=GP {ECO:0000313|EMBL:AEK48423.1}, and RR
RC {ECO:0000313|EMBL:AEK48509.1};
RX PubMed=23204304;
RA Ahmed I., Biggs P.J., Matthews P.J., Collins L.J., Hendy M.D.,
RA Lockhart P.J.;
RT "Mutational dynamics of aroid chloroplast genomes.";
RL Genome Biol. Evol. 4:1316-1323(2012).
RN [2] {ECO:0000313|EMBL:ATG83100.1}
RP NUCLEOTIDE SEQUENCE.
RA Shi Y.-C., Yang L.-F., Ji Y.-H.;
RT "Characterization of the complete chloroplast genome of Amorphophallus
RT konjac.";
RL Submitted (MAR-2017) to the EMBL/GenBank/DDBJ databases.
RN [3] {ECO:0000313|EMBL:AXR93957.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=20A {ECO:0000313|EMBL:AXR93957.1}, 20B
RC {ECO:0000313|EMBL:AXR94041.1}, 20E {ECO:0000313|EMBL:AXR94125.1}, and
RC Colocasia_esculenta_20D {ECO:0000313|EMBL:AXR94878.1};
RX PubMed=29928291; DOI=10.1186/s13007-018-0300-0;
RA Zeng C.X., Hollingsworth P.M., Yang J., He Z.S., Zhang Z.R., Li D.Z.,
RA Yang J.B.;
RT "Genome skimming herbarium specimens for DNA barcoding and phylogenomics.";
RL Plant Methods 14:43-43(2018).
RN [4] {ECO:0000313|EMBL:QYL70581.1}
RP NUCLEOTIDE SEQUENCE.
RA Zhu Q.;
RT "Complete chloroplast genomes of three morphotypes of Colocasia esculenta
RT species: Comparative analysis, positive selection and novel molecular
RT marker development.";
RL Submitted (MAY-2020) 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; JN105689; AEK48423.1; -; Genomic_DNA.
DR EMBL; JN105690; AEK48509.1; -; Genomic_DNA.
DR EMBL; KY769273; ATG83100.1; -; Genomic_DNA.
DR EMBL; MH394419; AXR93957.1; -; Genomic_DNA.
DR EMBL; MH394420; AXR94041.1; -; Genomic_DNA.
DR EMBL; MH394421; AXR94125.1; -; Genomic_DNA.
DR EMBL; MH394430; AXR94878.1; -; Genomic_DNA.
DR EMBL; MT447084; QYL70581.1; -; Genomic_DNA.
DR EMBL; MT447085; QYL70667.1; -; Genomic_DNA.
DR RefSeq; YP_005097891.1; NC_016753.1.
DR AlphaFoldDB; H2CPG8; -.
DR SMR; H2CPG8; -.
DR GeneID; 11547876; -.
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:AEK48423.1};
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:AEK48423.1};
KW Thylakoid {ECO:0000256|ARBA:ARBA00023078, 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..79
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; 9414 MW; ED325C8BCABACDDE CRC64;
MSGSTGERSF ADIITSIRYW VIHSITIPSL FIAGWLFVST GLAYDVFGSP RPNEYFTENR
QGIPLITGRF DSLEQLDEFS RSF
//
