ID   ATP8_ARBLI              Reviewed;          54 AA.
AC   Q9MJC0;
DT   24-JAN-2001, integrated into UniProtKB/Swiss-Prot.
DT   24-JAN-2001, sequence version 2.
DT   03-AUG-2022, entry version 71.
DE   RecName: Full=ATP synthase protein 8;
DE   AltName: Full=A6L;
DE   AltName: Full=F-ATPase subunit 8;
GN   Name=MT-ATP8; Synonyms=ATP8, ATPASE8, MTATP8;
OS   Arbacia lixula (Black urchin) (Echinus lixula).
OG   Mitochondrion.
OC   Eukaryota; Metazoa; Echinodermata; Eleutherozoa; Echinozoa; Echinoidea;
OC   Euechinoidea; Echinacea; Arbacioida; Arbaciidae; Arbacia.
OX   NCBI_TaxID=7640;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   TISSUE=Egg;
RX   PubMed=8728390; DOI=10.1006/mpev.1996.0027;
RA   De Giorgi C., Martiradonna A., Lanave C., Saccone C.;
RT   "Complete sequence of the mitochondrial DNA in the sea urchin Arbacia
RT   lixula: conserved features of the echinoid mitochondrial genome.";
RL   Mol. Phylogenet. Evol. 5:323-332(1996).
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. Part of the complex
CC       F(0) domain. Minor subunit located with subunit a in the membrane (By
CC       similarity). {ECO:0000250}.
CC   -!- SUBUNIT: F-type ATPases have 2 components, CF(1) - the catalytic core
CC       - and CF(0) - the membrane proton channel. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Mitochondrion membrane; Single-pass membrane
CC       protein.
CC   -!- SIMILARITY: Belongs to the ATPase protein 8 family. {ECO:0000305}.
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DR   EMBL; X80396; CAB93002.1; -; Genomic_DNA.
DR   RefSeq; NP_007347.2; NC_001770.1.
DR   AlphaFoldDB; Q9MJC0; -.
DR   SMR; Q9MJC0; -.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0000276; C:mitochondrial proton-transporting ATP synthase complex, coupling factor F(o); IEA:InterPro.
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   InterPro; IPR001421; ATP8_metazoa.
DR   Pfam; PF00895; ATP-synt_8; 1.
PE   3: Inferred from homology;
KW   ATP synthesis; CF(0); Hydrogen ion transport; Ion transport; Membrane;
KW   Mitochondrion; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..54
FT                   /note="ATP synthase protein 8"
FT                   /id="PRO_0000195487"
FT   TRANSMEM        9..29
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   54 AA;  6422 MW;  A2F8EF28C181B736 CRC64;
     MPQLEFTWWI INFFIVWTAD FTLLIVLSIP NLSTPTTLSK QLDINKSHVT WQWS