ID   ATP6_PYLLI              Reviewed;         248 AA.
AC   Q37601;
DT   15-JUL-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1996, sequence version 1.
DT   03-AUG-2022, entry version 87.
DE   RecName: Full=ATP synthase subunit a;
DE   AltName: Full=F-ATPase protein 6;
GN   Name=ATP6;
OS   Pylaiella littoralis (Seaweed) (Conferva littoralis).
OG   Mitochondrion.
OC   Eukaryota; Sar; Stramenopiles; Ochrophyta; PX clade; Phaeophyceae;
OC   Ectocarpales; Acinetosporaceae; Pylaiella.
OX   NCBI_TaxID=2885;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Fontaine J.-M., Rousvoal S., Delaroque N., Loiseaux-De Goer S.;
RT   "Characterisation of the cox3, nad7 and atp6 genes from the mitochondrial
RT   genome of the brown alga Pylaiella littoralis.";
RL   Plant Physiol. Biochem. 33:605-609(1995).
CC   -!- FUNCTION: Mitochondrial membrane ATP synthase (F(1)F(0) ATP synthase or
CC       Complex V) produces ATP from ADP in the presence of a proton gradient
CC       across the membrane which is generated by electron transport complexes
CC       of the respiratory chain. F-type ATPases consist of two structural
CC       domains, F(1) - containing the extramembraneous catalytic core and F(0)
CC       - containing the membrane proton channel, linked together by a central
CC       stalk and a peripheral stalk. During catalysis, ATP synthesis in the
CC       catalytic domain of F(1) is coupled via a rotary mechanism of the
CC       central stalk subunits to proton translocation. Key component of the
CC       proton channel; it may play a direct role in the translocation of
CC       protons across the membrane.
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 three main
CC       subunits: a, b and c.
CC   -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane; Multi-pass membrane
CC       protein.
CC   -!- SIMILARITY: Belongs to the ATPase A chain family. {ECO:0000305}.
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DR   EMBL; Z37967; CAA86023.1; -; Genomic_DNA.
DR   PIR; S57461; S57461.
DR   RefSeq; NP_150403.1; NC_003055.1.
DR   AlphaFoldDB; Q37601; -.
DR   SMR; Q37601; -.
DR   GeneID; 803711; -.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005743; C:mitochondrial inner membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0045263; C:proton-transporting ATP synthase complex, coupling factor F(o); IEA:UniProtKB-KW.
DR   GO; GO:0015078; F:proton transmembrane transporter activity; IEA:InterPro.
DR   GO; GO:0015986; P:proton motive force-driven ATP synthesis; IEA:InterPro.
DR   Gene3D; 1.20.120.220; -; 1.
DR   HAMAP; MF_01393; ATP_synth_a_bact; 1.
DR   InterPro; IPR000568; ATP_synth_F0_asu.
DR   InterPro; IPR023011; ATP_synth_F0_asu_AS.
DR   InterPro; IPR045083; ATP_synth_F0_asu_bact/mt.
DR   InterPro; IPR035908; F0_ATP_A_sf.
DR   PANTHER; PTHR11410; PTHR11410; 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); Hydrogen ion transport; Ion transport; Membrane;
KW   Mitochondrion; Mitochondrion inner membrane; Transmembrane;
KW   Transmembrane helix; Transport.
FT   CHAIN           1..248
FT                   /note="ATP synthase subunit a"
FT                   /id="PRO_0000082161"
FT   TRANSMEM        29..49
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        85..105
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        115..135
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        143..163
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        176..196
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        201..221
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        227..247
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   248 AA;  27309 MW;  0B80C8D1E4732454 CRC64;
     MFNSPLEQFE ILPLLSFGAN LFDFSITNAM LTTCVSLSFF LFLFYCLFSY GLNSFPTRWQ
     LVLEGLYTST AGLVWDSVGP RRPKVFPFLF VIFSFILISN VQGLVPYSFT ITSHLIQTMV
     LALTVFIGVI IIVLAHGFHM LSLFLPGGTS IVLAFLLVPI EIVSYVFKPL SLAVRLFANM
     MAGHTLLKVI AAVAWAMMGS GGLLLIAHIV PLGVLVILFG LELAVALIQA YVFTILSCIY
     INDAIVLH