ID   CEMA_TUPAK              Reviewed;         302 AA.
AC   Q3ZJ15;
DT   06-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT   27-SEP-2005, sequence version 1.
DT   25-MAY-2022, entry version 47.
DE   RecName: Full=Chloroplast envelope membrane protein;
GN   Name=cemA {ECO:0000255|HAMAP-Rule:MF_01308};
OS   Tupiella akineta (Green alga) (Pseudendoclonium akinetum).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Chlorophyta; Ulvophyceae; OUU clade;
OC   Ulotrichales; Tupiellaceae; Tupiella.
OX   NCBI_TaxID=160070;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=UTEX 1912;
RX   PubMed=15930151; DOI=10.1093/molbev/msi182;
RA   Pombert J.-F., Otis C., Lemieux C., Turmel M.;
RT   "The chloroplast genome sequence of the green alga Pseudendoclonium
RT   akinetum (Ulvophyceae) reveals unusual structural features and new insights
RT   into the branching order of chlorophyte lineages.";
RL   Mol. Biol. Evol. 22:1903-1918(2005).
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; AY835431; AAV80674.1; -; Genomic_DNA.
DR   RefSeq; YP_636252.1; NC_008114.1.
DR   AlphaFoldDB; Q3ZJ15; -.
DR   GeneID; 4108746; -.
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..302
FT                   /note="Chloroplast envelope membrane protein"
FT                   /id="PRO_0000275250"
FT   TRANSMEM        55..75
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        187..207
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        225..247
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        262..282
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
SQ   SEQUENCE   302 AA;  35158 MW;  6C4637D7B0B27660 CRC64;
     MSNNSSTSFK NQKPVEPIGI IPRSIIRTFN RFIIQLFPNS NALVIQEFRI SRYQVFVSIQ
     CLLSLIFIPL IITFLSKTFV FLPLTEYVWN TQTDDIFLNS YLEKEALSEL QDFEEQLYFD
     YFVSPNTYET PNWASYQIST DSSSQLESSF NNFPEILKSE IQKKTLELAT HYNQKSIESL
     TNLFSDFVSF GTFALLVIIL KPQIIILKSF LIESIYSLSD TIKSFLLILG TDLLVGFHSP
     RGWELFLEFV LNRFGFPHDE NFIFLFVATL PVLLDTVFKY WIFRYLNKIS PSTVATYHAM
     LE