ID   ATPZ_RHORU              Reviewed;         123 AA.
AC   P15011;
DT   01-APR-1990, integrated into UniProtKB/Swiss-Prot.
DT   01-APR-1990, sequence version 1.
DT   25-MAY-2022, entry version 63.
DE   RecName: Full=ATP synthase protein I;
GN   Name=atpI;
OS   Rhodospirillum rubrum.
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rhodospirillales;
OC   Rhodospirillaceae; Rhodospirillum.
OX   NCBI_TaxID=1085;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=2902844; DOI=10.1042/bj2540109;
RA   Falk G., Walker J.E.;
RT   "DNA sequence of a gene cluster coding for subunits of the F0 membrane
RT   sector of ATP synthase in Rhodospirillum rubrum. Support for modular
RT   evolution of the F1 and F0 sectors.";
RL   Biochem. J. 254:109-122(1988).
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; M37308; AAA26454.1; -; Genomic_DNA.
DR   EMBL; X12757; CAA31245.1; -; Genomic_DNA.
DR   PIR; S01146; S01146.
DR   RefSeq; WP_011390995.1; NZ_NHSM01000219.1.
DR   AlphaFoldDB; P15011; -.
DR   OMA; FRIGVEL; -.
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.
DR   InterPro; IPR016989; Atp1_alphaprobac.
DR   InterPro; IPR032820; ATPase_put.
DR   Pfam; PF09527; ATPase_gene1; 1.
DR   PIRSF; PIRSF032126; F0F1_ATP_synthase_subunit_I; 1.
PE   3: Inferred from homology;
KW   Cell membrane; CF(0); Hydrogen ion transport; Ion transport; Membrane;
KW   Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..123
FT                   /note="ATP synthase protein I"
FT                   /id="PRO_0000071712"
FT   TRANSMEM        43..63
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        70..90
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   REGION          1..38
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   COMPBIAS        1..23
FT                   /note="Basic and acidic residues"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   123 AA;  12460 MW;  4A9090BB92B5742E CRC64;
     MTDRDTPPSL EDISRRLTEA KGGADGAEAD GAGSSGPARA SGLGIGMRIS IELVTTIAVG
     GAIGYGLDSW LGTSPLAMVV FLVLGGAAGV MNAYRVVKGL DDSVGLGRAI ERKEKAEGNK
     DRA