ID   VATA_METM6              Reviewed;         586 AA.
AC   A9AAQ4;
DT   24-MAR-2009, integrated into UniProtKB/Swiss-Prot.
DT   15-JAN-2008, sequence version 1.
DT   03-AUG-2022, entry version 80.
DE   RecName: Full=V-type ATP synthase alpha chain {ECO:0000255|HAMAP-Rule:MF_00309};
DE            EC=7.1.2.2 {ECO:0000255|HAMAP-Rule:MF_00309};
DE   AltName: Full=V-ATPase subunit A {ECO:0000255|HAMAP-Rule:MF_00309};
GN   Name=atpA {ECO:0000255|HAMAP-Rule:MF_00309}; OrderedLocusNames=MmarC6_1615;
OS   Methanococcus maripaludis (strain C6 / ATCC BAA-1332).
OC   Archaea; Euryarchaeota; Methanomada group; Methanococci; Methanococcales;
OC   Methanococcaceae; Methanococcus.
OX   NCBI_TaxID=444158;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=C6 / ATCC BAA-1332;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA   Tice H., Pitluck S., Clum A., Schmutz J., Larimer F., Land M., Hauser L.,
RA   Kyrpides N., Mikhailova N., Sieprawska-Lupa M., Whitman W.B.,
RA   Richardson P.;
RT   "Complete sequence of Methanococcus maripaludis C6.";
RL   Submitted (OCT-2007) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Produces ATP from ADP in the presence of a proton gradient
CC       across the membrane. The archaeal alpha chain is a catalytic subunit.
CC       {ECO:0000255|HAMAP-Rule:MF_00309}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=ATP + 4 H(+)(in) + H2O = ADP + 5 H(+)(out) + phosphate;
CC         Xref=Rhea:RHEA:57720, ChEBI:CHEBI:15377, ChEBI:CHEBI:15378,
CC         ChEBI:CHEBI:30616, ChEBI:CHEBI:43474, ChEBI:CHEBI:456216; EC=7.1.2.2;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00309};
CC   -!- SIMILARITY: Belongs to the ATPase alpha/beta chains family.
CC       {ECO:0000255|HAMAP-Rule:MF_00309}.
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DR   EMBL; CP000867; ABX02427.1; -; Genomic_DNA.
DR   RefSeq; WP_012194343.1; NC_009975.1.
DR   AlphaFoldDB; A9AAQ4; -.
DR   SMR; A9AAQ4; -.
DR   STRING; 444158.MmarC6_1615; -.
DR   EnsemblBacteria; ABX02427; ABX02427; MmarC6_1615.
DR   GeneID; 5737711; -.
DR   KEGG; mmx:MmarC6_1615; -.
DR   eggNOG; arCOG00868; Archaea.
DR   HOGENOM; CLU_008162_3_1_2; -.
DR   OMA; RIVKTFW; -.
DR   OrthoDB; 6736at2157; -.
DR   PhylomeDB; A9AAQ4; -.
DR   GO; GO:0033178; C:proton-transporting two-sector ATPase complex, catalytic domain; IEA:InterPro.
DR   GO; GO:0005524; F:ATP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0046933; F:proton-transporting ATP synthase activity, rotational mechanism; IEA:UniProtKB-UniRule.
DR   GO; GO:0046961; F:proton-transporting ATPase activity, rotational mechanism; IEA:UniProtKB-EC.
DR   GO; GO:0042777; P:proton motive force-driven plasma membrane ATP synthesis; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.10.1140.10; -; 1.
DR   Gene3D; 2.40.30.20; -; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_00309; ATP_synth_A_arch; 1.
DR   InterPro; IPR031686; ATP-synth_a_Xtn.
DR   InterPro; IPR023366; ATP_synth_asu-like_sf.
DR   InterPro; IPR005726; ATP_synth_asu_arc.
DR   InterPro; IPR020003; ATPase_a/bsu_AS.
DR   InterPro; IPR004100; ATPase_F1/V1/A1_a/bsu_N.
DR   InterPro; IPR036121; ATPase_F1/V1/A1_a/bsu_N_sf.
DR   InterPro; IPR000194; ATPase_F1/V1/A1_a/bsu_nucl-bd.
DR   InterPro; IPR024034; ATPase_F1/V1_b/a_C.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR022878; V-ATPase_asu.
DR   PANTHER; PTHR43607; PTHR43607; 1.
DR   Pfam; PF00006; ATP-synt_ab; 1.
DR   Pfam; PF02874; ATP-synt_ab_N; 1.
DR   Pfam; PF16886; ATP-synt_ab_Xtn; 1.
DR   SUPFAM; SSF50615; SSF50615; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   TIGRFAMs; TIGR01043; ATP_syn_A_arch; 1.
DR   PROSITE; PS00152; ATPASE_ALPHA_BETA; 1.
PE   3: Inferred from homology;
KW   ATP synthesis; ATP-binding; Hydrogen ion transport; Ion transport;
KW   Nucleotide-binding; Translocase; Transport.
FT   CHAIN           1..586
FT                   /note="V-type ATP synthase alpha chain"
FT                   /id="PRO_1000115641"
FT   BINDING         232..239
FT                   /ligand="ATP"
FT                   /ligand_id="ChEBI:CHEBI:30616"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00309"
SQ   SEQUENCE   586 AA;  64241 MW;  AAAB53407AC2A56E CRC64;
     MVVGKIIKIS GPVVVAEGMK GSQMFEVVKV GNEGLTGEII QLTEDEAIIQ VYEETAGIKP
     GEGVTGTGAP LSVELGPGML KAMYDGIQRP LNEIENATDS IYIPRGVSVP SISREIKWDF
     EPIAAVGDEV ITGDVIGTVQ ETASIVHKIM IPFGVSGKIK EIKAGSFTVE ETIAVVETAE
     GEKEIMMMQK WPVRKPRPSK GKQAPVIPLI TGQRVEDTFF GLAKGGASAI PGPFGSGKTV
     TQHQLAKWSD VDVVVYIGCG ERGNEMTEVI EEFPHLDDIK TGNKLMDRTV LIANTSNMPV
     AAREASVYTG ITIAEYFRDQ GLGVLLTADS TSRWAEAMRE ISGRLEEMPG EEGYPAYLSS
     KLAQFYERAG RVECLGSENK QGFVCIVGAV SPPGGDFSEP VTSNTLRIVK VFWALDANLA
     RRRHFPAINW LTSYSLYIDD IAGWWQQNTA ADWRSLRDEA MSLLQKEAEL QEIVQLVGPD
     ALPDRERVIL EIARMLREDF LQQDAYHEVD SYCSPIKQYH MLKIIMTFYK KGLDAVAKGA
     DPAGISAVTV KGDIARMKYL VEDEFVNTKV PEIINKMESE LGALIK