ID   ATPZ_SYNP6              Reviewed;         118 AA.
AC   P08443;
DT   01-AUG-1988, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1988, sequence version 1.
DT   25-MAY-2022, entry version 114.
DE   RecName: Full=ATP synthase protein I;
GN   Name=atpI; Synonyms=atp1; OrderedLocusNames=syc1183_c;
OS   Synechococcus sp. (strain ATCC 27144 / PCC 6301 / SAUG 1402/1) (Anacystis
OS   nidulans).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX   NCBI_TaxID=269084;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=3041005; DOI=10.1016/0022-2836(87)90667-x;
RA   Cozens A.L., Walker J.E.;
RT   "The organization and sequence of the genes for ATP synthase subunits in
RT   the cyanobacterium Synechococcus 6301. Support for an endosymbiotic origin
RT   of chloroplasts.";
RL   J. Mol. Biol. 194:359-383(1987).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 27144 / PCC 6301 / SAUG 1402/1;
RX   PubMed=17211581; DOI=10.1007/s11120-006-9122-4;
RA   Sugita C., Ogata K., Shikata M., Jikuya H., Takano J., Furumichi M.,
RA   Kanehisa M., Omata T., Sugiura M., Sugita M.;
RT   "Complete nucleotide sequence of the freshwater unicellular cyanobacterium
RT   Synechococcus elongatus PCC 6301 chromosome: gene content and
RT   organization.";
RL   Photosyn. Res. 93:55-67(2007).
CC   -!- FUNCTION: A possible function for this protein is to guide the assembly
CC       of the membrane sector of the ATPase enzyme complex.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000305}; Multi-pass membrane
CC       protein {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the bacterial AtpI family. {ECO:0000305}.
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DR   EMBL; X05302; CAA28922.1; -; Genomic_DNA.
DR   EMBL; AP008231; BAD79373.1; -; Genomic_DNA.
DR   PIR; S10825; G1YC.
DR   AlphaFoldDB; P08443; -.
DR   STRING; 269084.syc1183_c; -.
DR   TCDB; 1.A.77.3.21; the mg(2+)/ca(2+) uniporter (mcu) family.
DR   EnsemblBacteria; BAD79373; BAD79373; syc1183_c.
DR   KEGG; syc:syc1183_c; -.
DR   eggNOG; ENOG5032SW6; Bacteria.
DR   OMA; NYLLGAC; -.
DR   Proteomes; UP000001175; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0045263; C:proton-transporting ATP synthase complex, coupling factor F(o); IEA:UniProtKB-KW.
DR   GO; GO:0006811; P:ion transport; IEA:UniProtKB-KW.
PE   3: Inferred from homology;
KW   Cell membrane; CF(0); Hydrogen ion transport; Ion transport; Membrane;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..118
FT                   /note="ATP synthase protein I"
FT                   /id="PRO_0000071717"
FT   TRANSMEM        11..31
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        73..93
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        94..114
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   118 AA;  13455 MW;  16B76A47F76CC196 CRC64;
     MAEYYALQRQ LLQVTLICTV VIFGAVWWAY SLNTAASYLL GAMGGLLYLR MLGKAVERIG
     ERRRQFGKSR LALFVVLIVL AARWQYLELM PVFLGFLTYK AALIWYTLRA VIPTAENS