ID   ATPE_LACDB              Reviewed;         146 AA.
AC   Q04BA2;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   14-NOV-2006, sequence version 1.
DT   03-AUG-2022, entry version 93.
DE   RecName: Full=ATP synthase epsilon chain {ECO:0000255|HAMAP-Rule:MF_00530};
DE   AltName: Full=ATP synthase F1 sector epsilon subunit {ECO:0000255|HAMAP-Rule:MF_00530};
DE   AltName: Full=F-ATPase epsilon subunit {ECO:0000255|HAMAP-Rule:MF_00530};
GN   Name=atpC {ECO:0000255|HAMAP-Rule:MF_00530}; OrderedLocusNames=LBUL_0644;
OS   Lactobacillus delbrueckii subsp. bulgaricus (strain ATCC BAA-365 / Lb-18).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Lactobacillaceae;
OC   Lactobacillus.
OX   NCBI_TaxID=321956;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-365 / Lb-18;
RX   PubMed=17030793; DOI=10.1073/pnas.0607117103;
RA   Makarova K.S., Slesarev A., Wolf Y.I., Sorokin A., Mirkin B., Koonin E.V.,
RA   Pavlov A., Pavlova N., Karamychev V., Polouchine N., Shakhova V.,
RA   Grigoriev I., Lou Y., Rohksar D., Lucas S., Huang K., Goodstein D.M.,
RA   Hawkins T., Plengvidhya V., Welker D., Hughes J., Goh Y., Benson A.,
RA   Baldwin K., Lee J.-H., Diaz-Muniz I., Dosti B., Smeianov V., Wechter W.,
RA   Barabote R., Lorca G., Altermann E., Barrangou R., Ganesan B., Xie Y.,
RA   Rawsthorne H., Tamir D., Parker C., Breidt F., Broadbent J.R., Hutkins R.,
RA   O'Sullivan D., Steele J., Unlu G., Saier M.H. Jr., Klaenhammer T.,
RA   Richardson P., Kozyavkin S., Weimer B.C., Mills D.A.;
RT   "Comparative genomics of the lactic acid bacteria.";
RL   Proc. Natl. Acad. Sci. U.S.A. 103:15611-15616(2006).
CC   -!- FUNCTION: Produces ATP from ADP in the presence of a proton gradient
CC       across the membrane. {ECO:0000255|HAMAP-Rule:MF_00530}.
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. {ECO:0000255|HAMAP-Rule:MF_00530}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_00530};
CC       Peripheral membrane protein {ECO:0000255|HAMAP-Rule:MF_00530}.
CC   -!- SIMILARITY: Belongs to the ATPase epsilon chain family.
CC       {ECO:0000255|HAMAP-Rule:MF_00530}.
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DR   EMBL; CP000412; ABJ58270.1; -; Genomic_DNA.
DR   RefSeq; WP_003623502.1; NC_008529.1.
DR   AlphaFoldDB; Q04BA2; -.
DR   SMR; Q04BA2; -.
DR   KEGG; lbu:LBUL_0644; -.
DR   HOGENOM; CLU_084338_1_0_9; -.
DR   OMA; MGGFAEI; -.
DR   BioCyc; LDEL321956:LBUL_RS03065-MON; -.
DR   GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0045261; C:proton-transporting ATP synthase complex, catalytic core F(1); IEA:UniProtKB-KW.
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   CDD; cd12152; F1-ATPase_delta; 1.
DR   Gene3D; 2.60.15.10; -; 1.
DR   HAMAP; MF_00530; ATP_synth_epsil_bac; 1.
DR   InterPro; IPR036794; ATP_F1_dsu/esu_C_sf.
DR   InterPro; IPR001469; ATP_synth_F1_dsu/esu.
DR   InterPro; IPR020547; ATP_synth_F1_dsu/esu_C.
DR   InterPro; IPR020546; ATP_synth_F1_dsu/esu_N.
DR   InterPro; IPR036771; ATPsynth_dsu/esu_N.
DR   PANTHER; PTHR13822; PTHR13822; 1.
DR   Pfam; PF00401; ATP-synt_DE; 1.
DR   Pfam; PF02823; ATP-synt_DE_N; 1.
DR   SUPFAM; SSF46604; SSF46604; 1.
DR   SUPFAM; SSF51344; SSF51344; 1.
DR   TIGRFAMs; TIGR01216; ATP_synt_epsi; 1.
PE   3: Inferred from homology;
KW   ATP synthesis; Cell membrane; CF(1); Hydrogen ion transport; Ion transport;
KW   Membrane; Transport.
FT   CHAIN           1..146
FT                   /note="ATP synthase epsilon chain"
FT                   /id="PRO_1000056495"
SQ   SEQUENCE   146 AA;  16227 MW;  5E47757231E8793C CRC64;
     MAEAEKLFKI NIVTPNGLIY SHRGSSVSMR AIDGDRQILY NHLPILTPLT IGEVRVQRGA
     DVDHKVDHIA VSGGIIEFAN NVATIIADNA ERARNIDLSR AEAAKQRAEA HITEAKEKHD
     EQLLERAQIA LRRAVNRIHV YGALHK