ID   CEMA_CHAGL              Reviewed;         472 AA.
AC   Q8M9X3;
DT   06-DEC-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   25-MAY-2022, entry version 53.
DE   RecName: Full=Chloroplast envelope membrane protein;
GN   Name=cemA {ECO:0000255|HAMAP-Rule:MF_01308};
OS   Chaetosphaeridium globosum (Charophycean green alga) (Herposteiron
OS   globosum).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Coleochaetophyceae; Coleochaetales;
OC   Chaetosphaeridiaceae; Chaetosphaeridium.
OX   NCBI_TaxID=96477;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=M1311;
RX   PubMed=12161560; DOI=10.1073/pnas.162203299;
RA   Turmel M., Otis C., Lemieux C.;
RT   "The chloroplast and mitochondrial genome sequences of the charophyte
RT   Chaetosphaeridium globosum: insights into the timing of the events that
RT   restructured organelle DNAs within the green algal lineage that led to land
RT   plants.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:11275-11280(2002).
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; AF494278; AAM96506.1; -; Genomic_DNA.
DR   RefSeq; NP_683815.1; NC_004115.1.
DR   AlphaFoldDB; Q8M9X3; -.
DR   GeneID; 860682; -.
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..472
FT                   /note="Chloroplast envelope membrane protein"
FT                   /id="PRO_0000216636"
FT   TRANSMEM        348..370
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        394..416
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        431..453
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
SQ   SEQUENCE   472 AA;  56008 MW;  887CA630C2E099CC CRC64;
     MKLIIYQIIK FLLITYYDCL HKAYNESKKI QKIQNEYISY TQLLTSAQHS SQTVILYIDS
     EINKCLFFIN LNLFKYKIIK LVINFIGEDK ISNFLSNHVD IKNEYVNLSI EKIFSSNSDF
     RKSQSESNSK NLVLKKNLDT NKNFHFDFLK YKIKYERQLA WVEAVLEDLK IWKDFYLYNF
     DFFNKKINNT RRFFFFNKPS SYTLSLSYES IGLIPRSITR TLSKFQTELL GNSYSYIIQE
     FRLAKYHTWV SLQYVASLIF LPWLITKLCQ NLFLQSWIEN WWNTSQSQIF INLSQQTKAL
     QRLQQLEELL WLDMAMSERI EGQPQDLGAL IHQRTIQLAE YYNQDSINII LHLFTDFIAI
     FTLIVLLILG KKRLAILNSW VQEVFYSLTD TMKAFLILLF TDLCIGFHSP HGWEIAIDGL
     LEHLGFAHNK YIVSCLVSTF PVILDTVLKY WIFRHLNRIS PSIVVTYHTM NE