ID   CEMA_CALFG              Reviewed;         229 AA.
AC   Q7YJW1;
DT   01-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2003, sequence version 1.
DT   25-MAY-2022, entry version 49.
DE   RecName: Full=Chloroplast envelope membrane protein;
GN   Name=cemA {ECO:0000255|HAMAP-Rule:MF_01308};
OS   Calycanthus floridus var. glaucus (Eastern sweetshrub) (Calycanthus
OS   fertilis var. ferax).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Magnoliidae; Laurales; Calycanthaceae;
OC   Calycanthus.
OX   NCBI_TaxID=212734;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RA   Goremykin V., Hirsch-Ernst K.I., Woelfl S., Hellwig F.H.;
RT   "The chloroplast genome of the 'basal' angiosperm Calycanthus fertilis
RT   -- structural and phylogenetic analyses.";
RL   Plant Syst. Evol. 242:119-135(2003).
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}.
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DR   EMBL; AJ428413; CAD28733.1; -; Genomic_DNA.
DR   RefSeq; NP_862766.1; NC_004993.1.
DR   AlphaFoldDB; Q7YJW1; -.
DR   GeneID; 2597980; -.
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..229
FT                   /note="Chloroplast envelope membrane protein"
FT                   /id="PRO_0000216635"
FT   TRANSMEM        7..27
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        104..126
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        188..210
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
SQ   SEQUENCE   229 AA;  26920 MW;  4153226AB6E24A68 CRC64;
     MPKKKALTPF PYLASIVFLP WWISLSFTKS LEPWVTNWWN TGQSKTFLND IQEKNVLERF
     IELEQLFLLD EMIKEYPETQ IQKFHIGIHK ETLQLVKMHN EDHIHIVLHF STNIICFAIL
     SGYYFLGNEE LVILNSWVQE FLYNLSDTIK AFSILLVTDL CIGFHSPRGW ELMIGSVYKD
     FGFAHNDQII SGLVSTFPVI LDTILKYWIF HYLNRVSPSL VVIYHSMNE