ID   CEMA_CYCTA              Reviewed;         229 AA.
AC   A6H5J0;
DT   18-MAR-2008, integrated into UniProtKB/Swiss-Prot.
DT   24-JUL-2007, sequence version 1.
DT   25-MAY-2022, entry version 36.
DE   RecName: Full=Chloroplast envelope membrane protein;
GN   Name=cemA {ECO:0000255|HAMAP-Rule:MF_01308};
OS   Cycas taitungensis (Prince sago) (Cycas taiwaniana).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Cycadidae; Cycadales; Cycadaceae; Cycas.
OX   NCBI_TaxID=54799;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=17383970; DOI=10.1093/molbev/msm059;
RA   Wu C.-S., Wang Y.-N., Liu S.-M., Chaw S.-M.;
RT   "Chloroplast genome (cpDNA) of Cycas taitungensis and 56 cp protein-coding
RT   genes of Gnetum parvifolium: insights into cpDNA evolution and phylogeny of
RT   extant seed plants.";
RL   Mol. Biol. Evol. 24:1366-1379(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; AP009339; BAF64956.1; -; Genomic_DNA.
DR   RefSeq; YP_001312215.1; NC_009618.1.
DR   AlphaFoldDB; A6H5J0; -.
DR   GeneID; 5309565; -.
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_0000323242"
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"
SQ   SEQUENCE   229 AA;  26712 MW;  0E6426BA50840FC0 CRC64;
     MAKYKALASL RYLACLVFLP WGISISFQKG LEPWVTNWWN TGQSREFSDY LQEENALERF
     GEIEELFLLE RMVEDSSETH SQDLRIEIRK KTIQLVEMYN EDLIQIISHL LANFICFATP
     GAYFILGKEK LVVLNSWIQE LFHSLSDTMK AFSILLVTDL CIGFHSPHGW ELMIDSISEN
     YGFSHDEQRI SGLVSTFPVI SDTIFKYWIF RHLNRISPSL VVIYHSMNE