ID H8PFQ7_9POAL Unreviewed; 75 AA.
AC H8PFQ7;
DT 16-MAY-2012, integrated into UniProtKB/TrEMBL.
DT 16-MAY-2012, sequence version 1.
DT 13-SEP-2023, entry version 33.
DE RecName: Full=Cytochrome b559 subunit alpha {ECO:0000256|RuleBase:RU000619};
DE AltName: Full=PSII reaction center subunit V {ECO:0000256|RuleBase:RU004529};
DE Flags: Fragment;
GN Name=psbE {ECO:0000313|EMBL:ADZ93697.1};
OS Puelia olyriformis.
OG Plastid; Chloroplast {ECO:0000313|EMBL:ADZ93697.1}.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; Puelioideae;
OC Atractocarpeae; Puelia.
OX NCBI_TaxID=93677 {ECO:0000313|EMBL:ADZ93697.1};
RN [1] {ECO:0000313|EMBL:ADZ93697.1}
RP NUCLEOTIDE SEQUENCE.
RX PubMed=30368769; DOI=.1002/ajb2.1178;
RA Givnish T.J., Zuluaga A., Spalink D., Soto Gomez M., Lam V.K.Y.,
RA Saarela J.M., Sass C., Iles W.J.D., de Sousa D.J.L., Leebens-Mack J.,
RA Chris Pires J., Zomlefer W.B., Gandolfo M.A., Davis J.I., Stevenson D.W.,
RA dePamphilis C., Specht C.D., Graham S.W., Barrett C.F., Ane C.;
RT "Monocot plastid phylogenomics, timeline, net rates of species
RT diversification, the power of multi-gene analyses, and a functional model
RT for the origin of monocots.";
RL Am. J. Bot. 105:1888-1910(2018).
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|RuleBase:RU004529}.
CC -!- SUBUNIT: Heterodimer of an alpha subunit and a beta subunit.
CC {ECO:0000256|RuleBase:RU004529}.
CC -!- SUBCELLULAR LOCATION: Membrane {ECO:0000256|ARBA:ARBA00004167}; Single-
CC pass membrane protein {ECO:0000256|ARBA:ARBA00004167}. Plastid,
CC chloroplast thylakoid membrane {ECO:0000256|RuleBase:RU004529}; Single-
CC pass membrane protein {ECO:0000256|RuleBase:RU004529}.
CC -!- SIMILARITY: Belongs to the PsbE/PsbF family.
CC {ECO:0000256|RuleBase:RU004529}.
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DR EMBL; EU832945; ADZ93697.1; -; Genomic_DNA.
DR AlphaFoldDB; H8PFQ7; -.
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:0020037; F:heme binding; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
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 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:ADZ93697.1};
KW Electron transport {ECO:0000256|ARBA:ARBA00022982,
KW ECO:0000256|RuleBase:RU004529};
KW Heme {ECO:0000256|ARBA:ARBA00022617, ECO:0000256|RuleBase:RU004529};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|RuleBase:RU004529};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|RuleBase:RU004529};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|RuleBase:RU004529};
KW Photosynthesis {ECO:0000256|ARBA:ARBA00022531,
KW ECO:0000256|RuleBase:RU004529};
KW Photosystem II {ECO:0000256|ARBA:ARBA00023276,
KW ECO:0000256|RuleBase:RU004529}; Plastid {ECO:0000313|EMBL:ADZ93697.1};
KW Thylakoid {ECO:0000256|ARBA:ARBA00023078};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692,
KW ECO:0000256|RuleBase:RU004529};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW ECO:0000256|RuleBase:RU004529};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|RuleBase:RU004529}.
FT TRANSMEM 12..36
FT /note="Helical"
FT /evidence="ECO:0000256|RuleBase:RU004529"
FT DOMAIN 2..26
FT /note="Photosystem II cytochrome b559 N-terminal"
FT /evidence="ECO:0000259|Pfam:PF00283"
FT DOMAIN 34..71
FT /note="Photosystem II cytochrome b559 alpha subunit lumenal
FT region"
FT /evidence="ECO:0000259|Pfam:PF00284"
FT NON_TER 1
FT /evidence="ECO:0000313|EMBL:ADZ93697.1"
SQ SEQUENCE 75 AA; 8581 MW; B28AA34FC30E1EDE CRC64;
SFADIITSIR YWVIHSITIP SLFIAGWLFV STGLAYDVFG SPRPNEYFTE SRQGIPLITG
RFDSLEQLDE FSRSF
//
