ID H2BBU1_MOLVE Unreviewed; 83 AA.
AC H2BBU1;
DT 21-MAR-2012, integrated into UniProtKB/TrEMBL.
DT 21-MAR-2012, sequence version 1.
DT 13-SEP-2023, entry version 39.
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:AEX65329.1};
OS Mollugo verticillata (Green carpetweed).
OG Plastid {ECO:0000313|EMBL:AEX65329.1}.
OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC Caryophyllales; Molluginaceae; Mollugo.
OX NCBI_TaxID=3592 {ECO:0000313|EMBL:AEX65329.1};
RN [1] {ECO:0000313|EMBL:AEX65329.1}
RP NUCLEOTIDE SEQUENCE.
RC TISSUE=Leaf {ECO:0000313|EMBL:AEX65329.1};
RX PubMed=21536881; DOI=10.1073/pnas.1100628108;
RA Arakaki M., Christin P.A., Nyffeler R., Lendel A., Eggli U., Ogburn R.M.,
RA Spriggs E., Moore M.J., Edwards E.J.;
RT "Contemporaneous and recent radiations of the world's major succulent plant
RT lineages.";
RL Proc. Natl. Acad. Sci. U.S.A. 108:8379-8384(2011).
RN [2] {ECO:0000313|EMBL:QBC68328.1}
RP NUCLEOTIDE SEQUENCE.
RX PubMed=30735725;
RA Yao G., Jin J.J., Li H.T., Yang J.B., Shiva Mandala V., Croley M.,
RA Mostow R., Douglas N.A., Chase M.W., Christenhusz M.J., Soltis D.E.,
RA Soltis P.S., Smith S.A., Brockington S.F., Moore M.J., Yi T.S., Li D.Z.;
RT "Plastid phylogenomic insights into the evolution of Caryophyllales.";
RL Mol. Phylogenet. Evol. 134:74-86(2019).
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; HQ621233; AEX65329.1; -; Genomic_DNA.
DR EMBL; MK397876; QBC68328.1; -; Genomic_DNA.
DR AlphaFoldDB; H2BBU1; -.
DR SMR; H2BBU1; -.
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 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:AEX65329.1};
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:AEX65329.1};
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 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 NON_TER 83
FT /evidence="ECO:0000313|EMBL:AEX65329.1"
SQ SEQUENCE 83 AA; 9387 MW; F1E3918BCABACDDE CRC64;
MSGSTGERSF ADIITSIRYW VIHSITIPSL FIAGWLFVST GLAYDVFGSP RPNEYFTESR
QGIPLITGRF DSLEQLDEFS RSF
//
