ID   CEMA_DIOEL              Reviewed;         229 AA.
AC   A6MML9;
DT   18-MAR-2008, integrated into UniProtKB/Swiss-Prot.
DT   24-JUL-2007, sequence version 1.
DT   25-MAY-2022, entry version 39.
DE   RecName: Full=Chloroplast envelope membrane protein;
GN   Name=cemA {ECO:0000255|HAMAP-Rule:MF_01308};
OS   Dioscorea elephantipes (Elephant's foot yam) (Testudinaria elephantipes).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Dioscoreales; Dioscoreaceae;
OC   Dioscorea.
OX   NCBI_TaxID=145284;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=17644003; DOI=10.1016/j.ympev.2007.06.004;
RA   Hansen D.R., Dastidar S.G., Cai Z., Penaflor C., Kuehl J.V., Boore J.L.,
RA   Jansen R.K.;
RT   "Phylogenetic and evolutionary implications of complete chloroplast genome
RT   sequences of four early-diverging angiosperms: Buxus (Buxaceae),
RT   Chloranthus (Chloranthaceae), Dioscorea (Dioscoreaceae), and Illicium
RT   (Schisandraceae).";
RL   Mol. Phylogenet. Evol. 45:547-563(2007).
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; EF380353; ABR01442.1; -; Genomic_DNA.
DR   RefSeq; YP_001294364.1; NC_009601.1.
DR   AlphaFoldDB; A6MML9; -.
DR   GeneID; 5236667; -.
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_0000323243"
FT   TRANSMEM        7..27
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        106..126
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        141..163
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        189..209
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
SQ   SEQUENCE   229 AA;  27134 MW;  3A79BCE0EE5B5D44 CRC64;
     MKKKKALISI PYLVSIVFLP WWVSLSFNKS LEPWITNWWN SEQSETFLND IQEKNVLERF
     IELEELFLLD EMIKENPETH IQKFRIEIHK QTIQLIKTHN EYNLHIILHF STNIICFVIL
     GGYFFLSNEE LIILNSWIQE LLYNLSDTIK AFSILLITDL WIGFHSTHGW ELMIGSVYND
     FGLAHNDQII SGLVSTFPVI LDTIVKYWIF HYLNRVSPSL VIIYHSMNE