ID A0A3G2Z2Z4_9LILI Unreviewed; 353 AA. AC A0A3G2Z2Z4; DT 13-FEB-2019, integrated into UniProtKB/TrEMBL. DT 13-FEB-2019, sequence version 1. DT 03-AUG-2022, entry version 12. DE RecName: Full=Photosystem II D2 protein {ECO:0000256|HAMAP-Rule:MF_01383, ECO:0000256|RuleBase:RU004333}; DE Short=PSII D2 protein {ECO:0000256|HAMAP-Rule:MF_01383}; DE EC=1.10.3.9 {ECO:0000256|HAMAP-Rule:MF_01383}; DE AltName: Full=Photosystem Q(A) protein {ECO:0000256|HAMAP-Rule:MF_01383}; GN Name=psbD {ECO:0000256|HAMAP-Rule:MF_01383, GN ECO:0000313|EMBL:AYP33695.1}; OS Heliconia meridensis. OG Plastid {ECO:0000313|EMBL:AYP33695.1}. OC Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta; OC Spermatophyta; Magnoliopsida; Liliopsida; Zingiberales; Heliconiaceae; OC Heliconia. OX NCBI_TaxID=1932260 {ECO:0000313|EMBL:AYP33695.1}; RN [1] {ECO:0000313|EMBL:AYP33695.1} RP NUCLEOTIDE SEQUENCE. RC STRAIN=13772 {ECO:0000313|EMBL:AYP33695.1}; 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: Photosystem II (PSII) is a light-driven water:plastoquinone CC oxidoreductase that uses light energy to abstract electrons from H(2)O, CC generating O(2) and a proton gradient subsequently used for ATP CC formation. It consists of a core antenna complex that captures photons, CC and an electron transfer chain that converts photonic excitation into a CC charge separation. The D1/D2 (PsbA/PsbA) reaction center heterodimer CC binds P680, the primary electron donor of PSII as well as several CC subsequent electron acceptors. D2 is needed for assembly of a stable CC PSII complex. {ECO:0000256|HAMAP-Rule:MF_01383}. CC -!- CATALYTIC ACTIVITY: CC Reaction=2 a plastoquinone + 2 H2O + 4 hnu = 2 a plastoquinol + O2; CC Xref=Rhea:RHEA:36359, Rhea:RHEA-COMP:9561, Rhea:RHEA-COMP:9562, CC ChEBI:CHEBI:15377, ChEBI:CHEBI:15379, ChEBI:CHEBI:17757, CC ChEBI:CHEBI:30212, ChEBI:CHEBI:62192; EC=1.10.3.9; CC Evidence={ECO:0000256|ARBA:ARBA00001833, ECO:0000256|HAMAP- CC Rule:MF_01383}; CC -!- COFACTOR: CC Note=The D1/D2 heterodimer binds P680, chlorophylls that are the CC primary electron donor of PSII, and subsequent electron acceptors. It CC shares a non-heme iron and each subunit binds pheophytin, quinone, CC additional chlorophylls, carotenoids and lipids. There is also a Cl(-1) CC ion associated with D1 and D2, which is required for oxygen evolution. CC The PSII complex binds additional chlorophylls, carotenoids and CC specific lipids. {ECO:0000256|HAMAP-Rule:MF_01383}; CC -!- SUBUNIT: PSII is composed of 1 copy each of membrane proteins PsbA, CC PsbB, PsbC, PsbD, PsbE, PsbF, PsbH, PsbI, PsbJ, PsbK, PsbL, PsbM, PsbT, CC PsbX, 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_01383}. CC -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000256|HAMAP- CC Rule:MF_01383}; Multi-pass membrane protein {ECO:0000256|HAMAP- CC Rule:MF_01383}. Membrane {ECO:0000256|ARBA:ARBA00004141}; Multi-pass CC membrane protein {ECO:0000256|ARBA:ARBA00004141}. CC -!- MISCELLANEOUS: 2 of the reaction center chlorophylls (ChlD1 and ChlD2) CC are entirely coordinated by water. {ECO:0000256|HAMAP-Rule:MF_01383}. CC -!- SIMILARITY: Belongs to the reaction center PufL/M/PsbA/D family. CC {ECO:0000256|ARBA:ARBA00008204, ECO:0000256|HAMAP-Rule:MF_01383, CC ECO:0000256|RuleBase:RU004331}. 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; MH603426; AYP33695.1; -; Genomic_DNA. DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW. DR GO; GO:0009523; C:photosystem II; IEA:UniProtKB-KW. DR GO; GO:0009536; C:plastid; IEA:UniProtKB-KW. DR GO; GO:0042651; C:thylakoid membrane; IEA:UniProtKB-UniRule. DR GO; GO:0016168; F:chlorophyll binding; IEA:UniProtKB-UniRule. DR GO; GO:0045156; F:electron transporter, transferring electrons within the cyclic electron transport pathway of photosynthesis activity; IEA:InterPro. DR GO; GO:0005506; F:iron ion binding; IEA:UniProtKB-UniRule. DR GO; GO:0010242; F:oxygen evolving activity; IEA:UniProtKB-EC. DR GO; GO:0009772; P:photosynthetic electron transport in photosystem II; IEA:InterPro. DR CDD; cd09288; Photosystem-II_D2; 1. DR Gene3D; 1.20.85.10; -; 1. DR HAMAP; MF_01383; PSII_PsbD_D2; 1. DR InterPro; IPR036854; Photo_II_D1/D2_sf. DR InterPro; IPR000484; Photo_RC_L/M. DR InterPro; IPR005868; PSII_PsbD/D2. DR PANTHER; PTHR33149; PTHR33149; 1. DR Pfam; PF00124; Photo_RC; 1. DR PRINTS; PR00256; REACTNCENTRE. DR SUPFAM; SSF81483; SSF81483; 1. DR TIGRFAMs; TIGR01152; psbD; 1. DR PROSITE; PS00244; REACTION_CENTER; 1. PE 3: Inferred from homology; KW Acetylation {ECO:0000256|ARBA:ARBA00022990}; KW Chlorophyll {ECO:0000256|ARBA:ARBA00022494, ECO:0000256|HAMAP- KW Rule:MF_01383}; KW Chromophore {ECO:0000256|ARBA:ARBA00022991, ECO:0000256|HAMAP- KW Rule:MF_01383}; KW Electron transport {ECO:0000256|ARBA:ARBA00022982, ECO:0000256|HAMAP- KW Rule:MF_01383}; KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_01383}; KW Magnesium {ECO:0000256|ARBA:ARBA00022842, ECO:0000256|HAMAP-Rule:MF_01383}; KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|HAMAP-Rule:MF_01383}; KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP- KW Rule:MF_01383}; Oxidoreductase {ECO:0000256|HAMAP-Rule:MF_01383}; KW Phosphoprotein {ECO:0000256|ARBA:ARBA00022553}; KW Photosynthesis {ECO:0000256|ARBA:ARBA00022531, ECO:0000256|HAMAP- KW Rule:MF_01383}; KW Photosystem II {ECO:0000256|ARBA:ARBA00023276, ECO:0000256|HAMAP- KW Rule:MF_01383}; Plastid {ECO:0000313|EMBL:AYP33695.1}; KW Thylakoid {ECO:0000256|HAMAP-Rule:MF_01383}; KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|HAMAP- KW Rule:MF_01383}; KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989, ECO:0000256|HAMAP- KW Rule:MF_01383}; KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|HAMAP-Rule:MF_01383}. FT TRANSMEM 28..50 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 111..129 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 141..161 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 167..185 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 197..217 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT TRANSMEM 267..292 FT /note="Helical" FT /evidence="ECO:0000256|SAM:Phobius" FT BINDING 118 FT /ligand="chlorophyll a" FT /ligand_id="ChEBI:CHEBI:58416" FT /ligand_label="ChlzD2" FT /ligand_part="Mg" FT /ligand_part_id="ChEBI:CHEBI:25107" FT /note="axial binding residue" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01383" FT BINDING 130 FT /ligand="pheophytin a" FT /ligand_id="ChEBI:CHEBI:136840" FT /ligand_label="D2" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01383" FT BINDING 143 FT /ligand="pheophytin a" FT /ligand_id="ChEBI:CHEBI:136840" FT /ligand_label="D2" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01383" FT BINDING 198 FT /ligand="chlorophyll a" FT /ligand_id="ChEBI:CHEBI:58416" FT /ligand_label="PD2" FT /ligand_part="Mg" FT /ligand_part_id="ChEBI:CHEBI:25107" FT /note="axial binding residue" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01383" FT BINDING 215 FT /ligand="Fe cation" FT /ligand_id="ChEBI:CHEBI:24875" FT /ligand_note="ligand shared with heterodimeric partner" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01383" FT BINDING 215 FT /ligand="a plastoquinone" FT /ligand_id="ChEBI:CHEBI:17757" FT /ligand_label="Q(A)" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01383" FT BINDING 262 FT /ligand="a plastoquinone" FT /ligand_id="ChEBI:CHEBI:17757" FT /ligand_label="Q(A)" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01383" FT BINDING 269 FT /ligand="Fe cation" FT /ligand_id="ChEBI:CHEBI:24875" FT /ligand_note="ligand shared with heterodimeric partner" FT /evidence="ECO:0000256|HAMAP-Rule:MF_01383" SQ SEQUENCE 353 AA; 39529 MW; AAABC041C9E3D2A8 CRC64; MTIAIGKITK EENDLFDIMD DWLRRDRFVF VGWSGLLLFP CAYFALGGWF TGTTFVTSWY THGLASSYLE GCNFLTAAVS TPANSLAHSL LLLWGPEAQG DFTRWCQLGG LWTFVALHGA FGLIGFMLRQ FELARSVQLR PYNAIAFSAP IAVFVSVFLI YPLGQSGWFF APSFGVAAIF RFILFFQGFH NWTLNPFHMM GVAGVLGAAL LCAIHGATVE NTLFEDGDGA NTFRAFNPTQ AEETYSMVTA NRFWSQIFGV AFSNKRWLHF FMLFVPVTGL WMSAIGVVGL ALNLRAYDFV SQEIRAAEDP EFETFYTKNI LLNEGIRAWM AAQDQPHENL VFPEEVLPRG NAL //