ID A0A386AXR9_9CHLO Unreviewed; 41 AA. AC A0A386AXR9; DT 05-DEC-2018, integrated into UniProtKB/TrEMBL. DT 05-DEC-2018, sequence version 1. DT 16-JAN-2019, entry version 2. DE RecName: Full=Cytochrome b559 subunit beta {ECO:0000256|HAMAP-Rule:MF_00643, ECO:0000256|RuleBase:RU004529}; DE AltName: Full=PSII reaction center subunit VI {ECO:0000256|HAMAP-Rule:MF_00643, ECO:0000256|RuleBase:RU004529}; GN Name=psbF {ECO:0000256|HAMAP-Rule:MF_00643, GN ECO:0000313|EMBL:AYC64155.1}; OS Johnson-sea-linkia profunda. OG Plastid; Chloroplast {ECO:0000313|EMBL:AYC64155.1}. OC Eukaryota; Viridiplantae; Chlorophyta; Ulvophyceae; Bryopsidales; OC Udoteaceae; Johnson-sea-linkia. OX NCBI_TaxID=575876 {ECO:0000313|EMBL:AYC64155.1}; RN [1] {ECO:0000313|EMBL:AYC64155.1} RP NUCLEOTIDE SEQUENCE. RX PubMed=30227214; RA Chiela M Cremen M., Leliaert F., West J., Lam D.W., Shimada S., RA Lopez-Bautista J.M., Verbruggen H.; RT "Reassessment of the classification of bryopsidales (chlorophyta) RT based on chloroplast phylogenomic analyses."; RL Mol. Phylogenet. Evol. 0:0-0(2018). RN [2] {ECO:0000313|EMBL:AYC64155.1} RP NUCLEOTIDE SEQUENCE. RA Quirk P.G., Krulwich T.A.; RL Submitted (JUL-2018) 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 CC abstract electrons from H(2)O, generating O(2) and a proton CC gradient subsequently used for ATP formation. It consists of a CC core antenna complex that captures photons, and an electron CC transfer chain that converts photonic excitation into a charge CC separation. {ECO:0000256|HAMAP-Rule:MF_00643, CC ECO:0000256|RuleBase:RU004529}. CC -!- COFACTOR: CC Name=heme b; Xref=ChEBI:CHEBI:60344; Evidence={ECO:0000256|HAMAP- CC Rule:MF_00643}; CC Note=With its partner (PsbE) binds heme. PSII binds additional CC chlorophylls, carotenoids and specific lipids. {ECO:0000256|HAMAP- CC Rule:MF_00643}; CC -!- SUBUNIT: Heterodimer of an alpha subunit and a beta subunit. PSII CC is composed of 1 copy each of membrane proteins PsbA, PsbB, PsbC, CC PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT, PsbX, CC PsbY, PsbZ, Ycf12, at least 3 peripheral proteins of the oxygen- CC evolving complex and a large number of cofactors. It forms dimeric CC complexes. {ECO:0000256|HAMAP-Rule:MF_00643}. CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane CC {ECO:0000256|HAMAP-Rule:MF_00643, ECO:0000256|RuleBase:RU004529}; CC Single-pass membrane protein {ECO:0000256|HAMAP-Rule:MF_00643, CC ECO:0000256|RuleBase:RU004529}. CC -!- SIMILARITY: Belongs to the PsbE/PsbF family. {ECO:0000256|HAMAP- CC Rule:MF_00643, ECO:0000256|RuleBase:RU004529}. CC --------------------------------------------------------------------------- CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms CC Distributed under the Creative Commons Attribution (CC BY 4.0) License CC --------------------------------------------------------------------------- DR EMBL; MH591089; AYC64155.1; -; Genomic_DNA. DR HAMAP; MF_00643; PSII_PsbF; 1. DR InterPro; IPR006241; PSII_cyt_b559_bsu. DR InterPro; IPR006216; PSII_cyt_b559_CS. DR InterPro; IPR013081; PSII_cyt_b559_N. DR PANTHER; PTHR33391:SF3; PTHR33391:SF3; 1. DR Pfam; PF00283; Cytochrom_B559; 1. DR PIRSF; PIRSF000037; PsbF; 1. DR TIGRFAMs; TIGR01333; cyt_b559_beta; 1. DR PROSITE; PS00537; CYTOCHROME_B559; 1. PE 3: Inferred from homology; KW Chloroplast {ECO:0000256|RuleBase:RU004529, KW ECO:0000313|EMBL:AYC64155.1}; KW Electron transport {ECO:0000256|HAMAP-Rule:MF_00643, KW ECO:0000256|RuleBase:RU004529}; KW Heme {ECO:0000256|HAMAP-Rule:MF_00643, ECO:0000256|RuleBase:RU004529}; KW Iron {ECO:0000256|HAMAP-Rule:MF_00643, ECO:0000256|RuleBase:RU004529}; KW Membrane {ECO:0000256|HAMAP-Rule:MF_00643, KW ECO:0000256|RuleBase:RU004529}; KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00643, KW ECO:0000256|RuleBase:RU004529}; KW Photosynthesis {ECO:0000256|HAMAP-Rule:MF_00643, KW ECO:0000256|RuleBase:RU004529}; KW Photosystem II {ECO:0000256|HAMAP-Rule:MF_00643, KW ECO:0000256|RuleBase:RU004529}; KW Plastid {ECO:0000313|EMBL:AYC64155.1}; KW Thylakoid {ECO:0000256|HAMAP-Rule:MF_00643}; KW Transmembrane {ECO:0000256|HAMAP-Rule:MF_00643, KW ECO:0000256|RuleBase:RU004529}; KW Transmembrane helix {ECO:0000256|HAMAP-Rule:MF_00643, KW ECO:0000256|RuleBase:RU004529}; KW Transport {ECO:0000256|HAMAP-Rule:MF_00643, KW ECO:0000256|RuleBase:RU004529}. FT TRANSMEM 16 40 Helical. {ECO:0000256|RuleBase:RU004529}. FT DOMAIN 8 31 Cytochrom_B559. {ECO:0000259|Pfam: FT PF00283}. FT METAL 20 20 Iron (heme axial ligand); shared with FT alpha subunit. {ECO:0000256|HAMAP-Rule: FT MF_00643}. SQ SEQUENCE 41 AA; 4643 MW; 8838576391658FA7 CRC64; MTTKKSTDYP IFTVRWLAVH GLAVPTIFFL GAITAMQFIV R //