ID   ATPE_PRODI              Reviewed;         136 AA.
AC   P50010;
DT   01-OCT-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1996, sequence version 1.
DT   25-MAY-2022, entry version 95.
DE   RecName: Full=ATP synthase epsilon chain;
DE   AltName: Full=ATP synthase F1 sector epsilon subunit;
DE   AltName: Full=F-ATPase epsilon subunit;
GN   Name=atpC; Synonyms=atpE;
OS   Prochloron didemni.
OC   Bacteria; Cyanobacteria; Synechococcales; Prochloraceae; Prochloron.
OX   NCBI_TaxID=1216;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=1532658; DOI=10.1073/pnas.89.7.2742;
RA   Lockhart P.J., Beanland T.J., Howe C.J., Larkum A.W.;
RT   "Sequence of Prochloron didemni atpBE and the inference of chloroplast
RT   origins.";
RL   Proc. Natl. Acad. Sci. U.S.A. 89:2742-2746(1992).
CC   -!- FUNCTION: Produces ATP from ADP in the presence of a proton gradient
CC       across the membrane. {ECO:0000250}.
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.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000250};
CC       Peripheral membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the ATPase epsilon chain family. {ECO:0000305}.
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DR   EMBL; M86384; AAA25557.1; -; Genomic_DNA.
DR   PIR; B42697; B42697.
DR   AlphaFoldDB; P50010; -.
DR   SMR; P50010; -.
DR   GO; GO:0031676; C:plasma membrane-derived thylakoid 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; 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; SSF51344; SSF51344; 1.
DR   TIGRFAMs; TIGR01216; ATP_synt_epsi; 1.
PE   3: Inferred from homology;
KW   ATP synthesis; CF(1); Hydrogen ion transport; Ion transport; Membrane;
KW   Thylakoid; Transport.
FT   CHAIN           1..136
FT                   /note="ATP synthase epsilon chain"
FT                   /id="PRO_0000188175"
SQ   SEQUENCE   136 AA;  14781 MW;  886FB2E0C92F45A2 CRC64;
     MTLTLRVITP DKTVWDDSVE EIVLPSTTGQ VGVLTGHAPL LTALDTGVMR VRPGKDWQAI
     ALMGGFAEVE NNEVKVLVNG AEVGDSIDKE TARTEFQQAE QNLARANQGD NRQELIQATQ
     EFKKARARFQ AAGGMT