ID   ATPI_ADICA              Reviewed;         248 AA.
AC   Q85FN1;
DT   05-JUL-2005, integrated into UniProtKB/Swiss-Prot.
DT   16-AUG-2004, sequence version 2.
DT   25-MAY-2022, entry version 78.
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   Adiantum capillus-veneris (Maidenhair fern).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Polypodiopsida; Polypodiidae; Polypodiales; Pteridineae; Pteridaceae;
OC   Vittarioideae; Adiantum.
OX   NCBI_TaxID=13818;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=12755170; DOI=10.1093/dnares/10.2.59;
RA   Wolf P.G., Rowe C.A., Sinclair R.B., Hasebe M.;
RT   "Complete nucleotide sequence of the chloroplast genome from a
RT   leptosporangiate fern, Adiantum capillus-veneris L.";
RL   DNA Res. 10:59-65(2003).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA], AND RNA EDITING.
RC   TISSUE=Frond;
RX   PubMed=15363849; DOI=10.1016/j.gene.2004.06.018;
RA   Wolf P.G., Rowe C.A., Hasebe M.;
RT   "High levels of RNA editing in a vascular plant chloroplast genome:
RT   analysis of transcripts from the fern Adiantum capillus-veneris.";
RL   Gene 339:89-97(2004).
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   -!- RNA EDITING: Modified_positions=14 {ECO:0000269|PubMed:15363849}, 24
CC       {ECO:0000269|PubMed:15363849}, 78 {ECO:0000269|PubMed:15363849}, 82
CC       {ECO:0000269|PubMed:15363849}, 104 {ECO:0000269|PubMed:15363849}, 149
CC       {ECO:0000269|PubMed:15363849}, 162 {ECO:0000269|PubMed:15363849}, 181
CC       {ECO:0000269|PubMed:15363849}, 205 {ECO:0000269|PubMed:15363849}, 217
CC       {ECO:0000269|PubMed:15363849}; Note=The nonsense codon at position 24
CC       is modified to a sense codon.;
CC   -!- SIMILARITY: Belongs to the ATPase A chain family. {ECO:0000255|HAMAP-
CC       Rule:MF_01393}.
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DR   EMBL; AY178864; AAP29380.2; -; Genomic_DNA.
DR   RefSeq; NP_848048.1; NC_004766.1.
DR   AlphaFoldDB; Q85FN1; -.
DR   SMR; Q85FN1; -.
DR   GeneID; 807428; -.
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   2: Evidence at transcript level;
KW   ATP synthesis; CF(0); Chloroplast; Hydrogen ion transport; Ion transport;
KW   Membrane; Plastid; RNA editing; Thylakoid; Transmembrane;
KW   Transmembrane helix; Transport.
FT   CHAIN           1..248
FT                   /note="ATP synthase subunit a, chloroplastic"
FT                   /id="PRO_0000002575"
FT   TRANSMEM        96..116
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        135..155
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        200..220
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
FT   TRANSMEM        221..241
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01393"
SQ   SEQUENCE   248 AA;  27566 MW;  1E901EB7E4078F53 CRC64;
     MQIEQLQINE IDNLHQVSSV EVGQHLYWQI GNFQVHAQVL ITSWVVVAIL VALPATTTGN
     LQSIPTGTQN FIEYVLEFIR DLTRTQMGEE GYRPWVPFIG TMFLFIFASN WSGALLPWRV
     IQLPHGELAA PTNDINTTVA LALLTSVAYF YAGLYKRGFS YFGKYIQPTP ILLPINILED
     FTKPLSLSFR LFGNILADEL VVAVLVSLVP LIVPVPMMLL GLFTSGIQAL IFATLAAAYI
     GESMEGHH