ID   CEMA_CHLAT              Reviewed;         236 AA.
AC   Q19V69;
DT   10-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT   20-FEB-2007, sequence version 2.
DT   25-MAY-2022, entry version 41.
DE   RecName: Full=Chloroplast envelope membrane protein;
GN   Name=cemA {ECO:0000255|HAMAP-Rule:MF_01308};
OS   Chlorokybus atmophyticus (Soil alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Chlorokybophyceae; Chlorokybales;
OC   Chlorokybaceae; Chlorokybus.
OX   NCBI_TaxID=3144;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SAG 48.80;
RX   PubMed=17222354; DOI=10.1186/1741-7007-5-2;
RA   Lemieux C., Otis C., Turmel M.;
RT   "A clade uniting the green algae Mesostigma viride and Chlorokybus
RT   atmophyticus represents the deepest branch of the Streptophyta in
RT   chloroplast genome-based phylogenies.";
RL   BMC Biol. 5:2-2(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; DQ422812; ABD62176.2; -; Genomic_DNA.
DR   RefSeq; YP_001019143.1; NC_008822.1.
DR   AlphaFoldDB; Q19V69; -.
DR   SMR; Q19V69; -.
DR   GeneID; 4783202; -.
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..236
FT                   /note="Chloroplast envelope membrane protein"
FT                   /id="PRO_0000293514"
FT   TRANSMEM        12..32
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        114..134
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        161..181
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        196..216
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
SQ   SEQUENCE   236 AA;  27476 MW;  1FD6F47C6F1E6978 CRC64;
     MTRNWKVSKY QTVTSIKYFI SFILFVLITN HVSSRILLRP CAEYLWNMRQ TDIFINSSQE
     ERAFLELQRF EDKTRFEILI GEAPQLNTQS FNKKIQEKAI ELAKYSNEES IDSIANVFAD
     LLSLCIFVLA LLLGKKEIAV IKNLVNTLIY SLTDATKSFF IILFTDIFVG FHSSHGWEIL
     IEVFLKHLGL PENKDFIFLF VATFPVVLDT VFKYWIFLYL NKISPSAVAT FHNMNE