ID   CEMA_CITSI              Reviewed;         234 AA.
AC   Q09MG6;
DT   06-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT   17-OCT-2006, sequence version 1.
DT   25-MAY-2022, entry version 45.
DE   RecName: Full=Chloroplast envelope membrane protein;
GN   Name=cemA {ECO:0000255|HAMAP-Rule:MF_01308};
OS   Citrus sinensis (Sweet orange) (Citrus aurantium var. sinensis).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; malvids; Sapindales; Rutaceae; Aurantioideae; Citrus.
OX   NCBI_TaxID=2711;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Osbeck var. Ridge Pineapple;
RX   PubMed=17010212; DOI=10.1186/1471-2229-6-21;
RA   Bausher M.G., Singh N.D., Lee S.-B., Jansen R.K., Daniell H.;
RT   "The complete chloroplast genome sequence of Citrus sinensis (L.) Osbeck
RT   var 'Ridge Pineapple': organization and phylogenetic relationships to other
RT   angiosperms.";
RL   BMC Plant Biol. 6:21-21(2006).
CC   -!- FUNCTION: May be involved in proton extrusion. Indirectly promotes
CC       efficient inorganic carbon uptake into chloroplasts.
CC       {ECO:0000255|HAMAP-Rule:MF_01308}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast inner membrane
CC       {ECO:0000255|HAMAP-Rule:MF_01308}; Multi-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_01308}.
CC   -!- SIMILARITY: Belongs to the Cema family. {ECO:0000305}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; DQ864733; ABI49032.1; -; Genomic_DNA.
DR   RefSeq; YP_740487.1; NC_008334.1.
DR   AlphaFoldDB; Q09MG6; -.
DR   GeneID; 4271217; -.
DR   KEGG; cit:4271217; -.
DR   OrthoDB; 1276845at2759; -.
DR   GO; GO:0009706; C:chloroplast inner membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0015078; F:proton transmembrane transporter activity; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_01308; CemA; 1.
DR   InterPro; IPR004282; CemA.
DR   PANTHER; PTHR33650; PTHR33650; 1.
DR   Pfam; PF03040; CemA; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Hydrogen ion transport; Ion transport; Membrane; Plastid;
KW   Plastid inner membrane; Transmembrane; Transmembrane helix; Transport.
FT   CHAIN           1..234
FT                   /note="Chloroplast envelope membrane protein"
FT                   /id="PRO_0000275232"
FT   TRANSMEM        8..28
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        117..137
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        157..177
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        193..213
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
SQ   SEQUENCE   234 AA;  27657 MW;  6CE84AEE06A5269A CRC64;
     MTKKNASIPL RYLSSIVFVV FLPWWIPLSF NKSLESWVTN WWNTSQSETF LNDIQEKAIL
     EKFIELEELF LLDEMIKEFP ERRLEKLRIG LQKETIQLIK MHDEDHIHTI FHFSTNTICF
     VILSGYSILC NEELFILNSW VQEFLYNLSD TIKAFSILFV TDLCIGFHSP RGWELLIGYV
     YNDFGLAHND NDIILSVLVS TFPVVLDTFF KYWLFSYLNR VSPSLVVIYH SMTE