ID A0A088CJW0_9CHLO Unreviewed; 751 AA. AC A0A088CJW0; DT 26-NOV-2014, integrated into UniProtKB/TrEMBL. DT 26-NOV-2014, sequence version 1. DT 16-JAN-2019, entry version 17. DE RecName: Full=Photosystem I P700 chlorophyll a apoprotein A1 {ECO:0000256|HAMAP-Rule:MF_00458}; DE EC=1.97.1.12 {ECO:0000256|HAMAP-Rule:MF_00458}; DE AltName: Full=PSI-A {ECO:0000256|HAMAP-Rule:MF_00458}; DE AltName: Full=PsaA {ECO:0000256|HAMAP-Rule:MF_00458}; GN Name=psaA {ECO:0000256|HAMAP-Rule:MF_00458, GN ECO:0000313|EMBL:AID67522.1}; OS Prasinoderma coloniale. OG Plastid; Chloroplast {ECO:0000313|EMBL:AID67522.1}. OC Eukaryota; Viridiplantae; Chlorophyta; Palmophyllophyceae; OC Prasinococcales; Prasinococcaceae; Prasinoderma. OX NCBI_TaxID=156133 {ECO:0000313|EMBL:AID67522.1}; RN [1] {ECO:0000313|EMBL:AID67522.1} RP NUCLEOTIDE SEQUENCE. RX PubMed=25281016; DOI=10.1186/1471-2164-15-857; RA Lemieux C., Otis C., Turmel M.; RT "Six newly sequenced chloroplast genomes from prasinophyte green algae RT provide insights into the relationships among prasinophyte lineages RT and the diversity of streamlined genome architecture in picoplanktonic RT species."; RL BMC Genomics 15:857-857(2014). CC -!- FUNCTION: PsaA and PsaB bind P700, the primary electron donor of CC photosystem I (PSI), as well as the electron acceptors A0, A1 and CC FX. PSI is a plastocyanin/cytochrome c6-ferredoxin oxidoreductase, CC converting photonic excitation into a charge separation, which CC transfers an electron from the donor P700 chlorophyll pair to the CC spectroscopically characterized acceptors A0, A1, FX, FA and FB in CC turn. Oxidized P700 is reduced on the lumenal side of the CC thylakoid membrane by plastocyanin or cytochrome c6. CC {ECO:0000256|HAMAP-Rule:MF_00458}. CC -!- CATALYTIC ACTIVITY: CC Reaction=hnu + oxidized [2Fe-2S]-[ferredoxin] + reduced CC [plastocyanin] = oxidized [plastocyanin] + reduced [2Fe-2S]- CC [ferredoxin]; Xref=Rhea:RHEA:30407, Rhea:RHEA-COMP:10000, CC Rhea:RHEA-COMP:10001, Rhea:RHEA-COMP:10039, Rhea:RHEA- CC COMP:10040, ChEBI:CHEBI:29036, ChEBI:CHEBI:30212, CC ChEBI:CHEBI:33737, ChEBI:CHEBI:33738, ChEBI:CHEBI:49552; CC EC=1.97.1.12; Evidence={ECO:0000256|HAMAP-Rule:MF_00458}; CC -!- COFACTOR: CC Note=P700 is a chlorophyll a/chlorophyll a' dimer, A0 is one or CC more chlorophyll a, A1 is one or both phylloquinones and FX is a CC shared 4Fe-4S iron-sulfur center. {ECO:0000256|HAMAP- CC Rule:MF_00458}; CC -!- SUBUNIT: The PsaA/B heterodimer binds the P700 chlorophyll special CC pair and subsequent electron acceptors. PSI consists of a core CC antenna complex that captures photons, and an electron transfer CC chain that converts photonic excitation into a charge separation. CC The eukaryotic PSI reaction center is composed of at least 11 CC subunits. {ECO:0000256|HAMAP-Rule:MF_00458}. CC -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane CC {ECO:0000256|HAMAP-Rule:MF_00458}; Multi-pass membrane protein CC {ECO:0000256|HAMAP-Rule:MF_00458}. CC -!- SIMILARITY: Belongs to the PsaA/PsaB family. {ECO:0000256|HAMAP- CC Rule:MF_00458}. 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; KJ746598; AID67522.1; -; Genomic_DNA. DR RefSeq; YP_009057464.1; NC_024817.1. DR GeneID; 20357977; -. DR GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell. DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW. DR GO; GO:0009522; C:photosystem I; IEA:UniProtKB-KW. DR GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-KW. DR GO; GO:0016168; F:chlorophyll binding; IEA:UniProtKB-KW. DR GO; GO:0009055; F:electron transfer activity; IEA:UniProtKB-UniRule. DR GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule. DR GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule. DR GO; GO:0018298; P:protein-chromophore linkage; IEA:UniProtKB-KW. DR Gene3D; 1.20.1130.10; -; 1. DR HAMAP; MF_00458; PSI_PsaA; 1. DR InterPro; IPR006243; PSI_PsaA. DR InterPro; IPR001280; PSI_PsaA/B. DR InterPro; IPR020586; PSI_PsaA/B_CS. DR InterPro; IPR036408; PSI_PsaA/B_sf. DR PANTHER; PTHR30128:SF8; PTHR30128:SF8; 1. DR Pfam; PF00223; PsaA_PsaB; 1. DR PIRSF; PIRSF002905; PSI_A; 1. DR PRINTS; PR00257; PHOTSYSPSAAB. DR SUPFAM; SSF81558; SSF81558; 1. DR TIGRFAMs; TIGR01335; psaA; 1. DR PROSITE; PS00419; PHOTOSYSTEM_I_PSAAB; 1. PE 3: Inferred from homology; KW 4Fe-4S {ECO:0000256|HAMAP-Rule:MF_00458}; KW Chlorophyll {ECO:0000256|HAMAP-Rule:MF_00458}; KW Chloroplast {ECO:0000313|EMBL:AID67522.1}; KW Chromophore {ECO:0000256|HAMAP-Rule:MF_00458}; KW Electron transport {ECO:0000256|HAMAP-Rule:MF_00458}; KW Iron {ECO:0000256|HAMAP-Rule:MF_00458}; KW Iron-sulfur {ECO:0000256|HAMAP-Rule:MF_00458}; KW Magnesium {ECO:0000256|HAMAP-Rule:MF_00458}; KW Membrane {ECO:0000256|HAMAP-Rule:MF_00458, ECO:0000256|SAM:Phobius}; KW Metal-binding {ECO:0000256|HAMAP-Rule:MF_00458}; KW Oxidoreductase {ECO:0000256|HAMAP-Rule:MF_00458}; KW Photosynthesis {ECO:0000256|HAMAP-Rule:MF_00458}; KW Photosystem I {ECO:0000256|HAMAP-Rule:MF_00458}; KW Plastid {ECO:0000313|EMBL:AID67522.1}; KW Thylakoid {ECO:0000256|HAMAP-Rule:MF_00458}; KW Transmembrane {ECO:0000256|HAMAP-Rule:MF_00458, KW ECO:0000256|SAM:Phobius}; KW Transmembrane helix {ECO:0000256|HAMAP-Rule:MF_00458, KW ECO:0000256|SAM:Phobius}; KW Transport {ECO:0000256|HAMAP-Rule:MF_00458}. FT TRANSMEM 73 93 Helical. {ECO:0000256|SAM:Phobius}. FT TRANSMEM 159 181 Helical. {ECO:0000256|SAM:Phobius}. FT TRANSMEM 294 312 Helical. {ECO:0000256|SAM:Phobius}. FT TRANSMEM 353 373 Helical. {ECO:0000256|SAM:Phobius}. FT TRANSMEM 393 415 Helical. {ECO:0000256|SAM:Phobius}. FT TRANSMEM 436 457 Helical. {ECO:0000256|SAM:Phobius}. FT TRANSMEM 533 551 Helical. {ECO:0000256|SAM:Phobius}. FT TRANSMEM 665 687 Helical. {ECO:0000256|SAM:Phobius}. FT METAL 575 575 Iron-sulfur (4Fe-4S); shared with dimeric FT partner. {ECO:0000256|HAMAP-Rule: FT MF_00458}. FT METAL 584 584 Iron-sulfur (4Fe-4S); shared with dimeric FT partner. {ECO:0000256|HAMAP-Rule: FT MF_00458}. FT METAL 676 676 Magnesium (chlorophyll-a' A1 axial FT ligand; P700 special pair). FT {ECO:0000256|HAMAP-Rule:MF_00458}. FT METAL 684 684 Magnesium (chlorophyll-a A3 axial FT ligand). {ECO:0000256|HAMAP-Rule: FT MF_00458}. FT BINDING 692 692 Chlorophyll-a A3. {ECO:0000256|HAMAP- FT Rule:MF_00458}. FT BINDING 693 693 Phylloquinone A. {ECO:0000256|HAMAP-Rule: FT MF_00458}. SQ SEQUENCE 751 AA; 83389 MW; EB0E2C5852646CD6 CRC64; MTIRPPKHEA KKIKILVDTN TVSTSFEKWA KPGHFSRTLA KGPTTTTWVW NLHADAHDFD SHTTDLEDIS RKVFSAHFGQ LGIILIWLSG MYFHGARFSN YEAWLTDPTN IKPSAQVVWP IVGQEILNGD VGGGFQGIQI TSGFFQLWRA SGITTELELY STAIGGLVLA GLMFFAGWFH YHKAAPKLEW FQSVESMMNH HLAGLLGLGS LAWAGHQIHV ALPINLLLDA GIDPKEIPLP HEFLLDRQLM AQLYPSFAQG LTPFFTMHWA AYGDFLTFKG GLNPVTGALW LTDIAHHHLA VAVLFIIAGH MYRTNWGIGH SFKEILEAHR GPFTGNGHKG LYEILTTSWH AQLAINLALF GSLSIIVAHH MYAMPAYPYI AVDYGTQLSL FTHHTWIGGF CICGAAAHGA IFMVRDYDPL NNYNNVLDRV IRHRDAIISH LNWVCIFLGF HSFGLYIHND TMSALGRPQD MFSDTALQLQ PVFAQWVQQT HMSAPDLTAP NALLGTSPAW GGDTIAINGK VAMMPVPLGT ADFMVHHIHA FTIHVTVLIL LKGVLFARSS RLIPDKANLG FRFPCDGPGR GGTCQVSGWD HVFLGLFWMY NCISVDIFYF SWKMQSDVWG TVTDQGISHI TGGNFALTAN TINGWLRDFL WAQSSQVLQA YGSALSAYSL TFLAAHFIWA FSLMFLFSGR GYWQELIESI VWAHNKLRVA PAIQPRALSI TQGRAVGVAH YLLGGICTTW AFFLARICAV G //