ID   ATPI_BIGNA              Reviewed;         245 AA.
AC   Q06J71;
DT   13-NOV-2007, integrated into UniProtKB/Swiss-Prot.
DT   31-OCT-2006, sequence version 1.
DT   25-MAY-2022, entry version 61.
DE   RecName: Full=ATP synthase subunit a, chloroplastic {ECO:0000255|HAMAP-Rule:MF_01393};
DE   AltName: Full=ATP synthase F0 sector subunit a {ECO:0000255|HAMAP-Rule:MF_01393};
DE   AltName: Full=F-ATPase subunit IV {ECO:0000255|HAMAP-Rule:MF_01393};
GN   Name=atpI {ECO:0000255|HAMAP-Rule:MF_01393};
OS   Bigelowiella natans (Pedinomonas minutissima) (Chlorarachnion sp. (strain
OS   CCMP621)).
OG   Plastid; Chloroplast.
OC   Eukaryota; Sar; Rhizaria; Cercozoa; Chlorarachniophyceae; Bigelowiella.
OX   NCBI_TaxID=227086;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=16990439; DOI=10.1093/molbev/msl129;
RA   Rogers M.B., Gilson P.R., Su V., McFadden G.I., Keeling P.J.;
RT   "The complete chloroplast genome of the chlorarachniophyte Bigelowiella
RT   natans: evidence for independent origins of chlorarachniophyte and euglenid
RT   secondary endosymbionts.";
RL   Mol. Biol. Evol. 24:54-62(2007).
CC   -!- FUNCTION: Key component of the proton channel; it plays a direct role
CC       in the translocation of protons across the membrane.
CC       {ECO:0000255|HAMAP-Rule:MF_01393}.
CC   -!- SUBUNIT: F-type ATPases have 2 components, CF(1) - the catalytic core
CC       - and CF(0) - the membrane proton channel. CF(1) has five subunits:
CC       alpha(3), beta(3), gamma(1), delta(1), epsilon(1). CF(0) has four main
CC       subunits: a, b, b' and c. {ECO:0000255|HAMAP-Rule:MF_01393}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_01393}; Multi-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_01393}.
CC   -!- SIMILARITY: Belongs to the ATPase A chain family. {ECO:0000255|HAMAP-
CC       Rule:MF_01393}.
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; DQ851108; ABG91388.1; -; Genomic_DNA.
DR   RefSeq; YP_778556.1; NC_008408.1.
DR   AlphaFoldDB; Q06J71; -.
DR   SMR; Q06J71; -.
DR   GeneID; 4352973; -.
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:0005886; C:plasma membrane; IEA:UniProtKB-UniRule.
DR   GO; GO:0045263; C:proton-transporting ATP synthase complex, coupling factor F(o); IEA:UniProtKB-KW.
DR   GO; GO:0046933; F:proton-transporting ATP synthase activity, rotational mechanism; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.20.120.220; -; 1.
DR   HAMAP; MF_01393; ATP_synth_a_bact; 1.
DR   InterPro; IPR045082; ATP_syn_F0_a_bact/chloroplast.
DR   InterPro; IPR000568; ATP_synth_F0_asu.
DR   InterPro; IPR023011; ATP_synth_F0_asu_AS.
DR   InterPro; IPR035908; F0_ATP_A_sf.
DR   PANTHER; PTHR42823; PTHR42823; 1.
DR   Pfam; PF00119; ATP-synt_A; 1.
DR   PRINTS; PR00123; ATPASEA.
DR   SUPFAM; SSF81336; SSF81336; 1.
DR   TIGRFAMs; TIGR01131; ATP_synt_6_or_A; 1.
DR   PROSITE; PS00449; ATPASE_A; 1.
PE   3: Inferred from homology;
KW   ATP synthesis; CF(0); Chloroplast; Hydrogen ion transport; Ion transport;
KW   Membrane; Plastid; Thylakoid; Transmembrane; Transmembrane helix;
KW   Transport.
FT   CHAIN           1..245
FT                   /note="ATP synthase subunit a, chloroplastic"
FT                   /id="PRO_0000310412"
FT   TRANSMEM        34..54
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        93..113
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        132..152
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        197..217
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        218..238
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
SQ   SEQUENCE   245 AA;  27635 MW;  D9C642E50D9809AC CRC64;
     MNFFYYKDFY QLSEISVGQH YYWQISNFQV HGQTLMTSWF VISLIMIIAF LSNLNMKKIP
     LAKSFQNLAE FVTEFILDLA RTQVGKEDYL NWVPFLGAVF LFIFVSNWGG ALLPWKLLEL
     PNGELAAPTN DINTTVALAL LTSFSYFYAG ISKKGISYFG RYVQPTPFLL PINVLEDFTK
     PLSLSFRLFG NLLADELVIA VLVSLVPLFV PVPLMLLGLF TSAIQALVFS TLAGAYIGES
     VEDHH