ID   CEMA_STIHE              Reviewed;         554 AA.
AC   Q06SD7;
DT   10-JUL-2007, integrated into UniProtKB/Swiss-Prot.
DT   31-OCT-2006, sequence version 1.
DT   25-MAY-2022, entry version 44.
DE   RecName: Full=Chloroplast envelope membrane protein;
GN   Name=cemA {ECO:0000255|HAMAP-Rule:MF_01308};
OS   Stigeoclonium helveticum (Green alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Chlorophyta; core chlorophytes; Chlorophyceae;
OC   OCC clade; Chaetophorales; Chaetophoraceae; Stigeoclonium.
OX   NCBI_TaxID=55999;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=UTEX 441;
RX   PubMed=16944205; DOI=10.1007/s00438-006-0156-2;
RA   Belanger A.-S., Brouard J.-S., Charlebois P., Otis C., Lemieux C.,
RA   Turmel M.;
RT   "Distinctive architecture of the chloroplast genome in the chlorophycean
RT   green alga Stigeoclonium helveticum.";
RL   Mol. Genet. Genomics 276:464-477(2006).
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; DQ630521; ABF60153.1; -; Genomic_DNA.
DR   RefSeq; YP_764429.1; NC_008372.1.
DR   AlphaFoldDB; Q06SD7; -.
DR   SMR; Q06SD7; -.
DR   GeneID; 4308396; -.
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; 2.
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..554
FT                   /note="Chloroplast envelope membrane protein"
FT                   /id="PRO_0000293535"
FT   TRANSMEM        50..70
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        429..449
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        479..499
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        514..534
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   REGION          113..410
FT                   /note="Insert"
SQ   SEQUENCE   554 AA;  64017 MW;  91C5471A65AD8F03 CRC64;
     MTELEKIGLI PRSIVRMLDR FYYQIYLGTA EPLVKQFRFS KYLLLTSVKS LFVVLFIPFF
     INIFTKIYVF RPLVEYFWDR KQTEIFLNYE LQEKAFSEIR NFEEKMYFDY LIKTENFFPE
     KPKYFLPEAP LPGELPMQKK ELFGVNLQEY KFKSNHSCLK FYSTEANSSV FGFENGNSLK
     LSHVSLFASK YPIKFTVIKN DLFKIKNQEG KSGAFPASEE EKKLKKGEKA LLFPLLPTFS
     FSPRKNSSFF LGEKENMGIS PGSKEEKKLK FFFFPHSGGT FSHCSLGIED SEGKFSPGRR
     EISPLLPGEH CGKLGKNAIF LLEEEKNGSG ETRASFATSG SKAPALEELK NQSIDFLIPL
     EKSSPQRTFF SQHLASDFCS FDLTAQTKFH FVSFPNSIDT VPYNFNKNTE SIFRQKTREL
     ANHYNNESIS AITNLLADFM GLFILLFLLV NMKMSLMNTT AFLSESFFSL KDSKKAFLML
     LFTDLLVGFH SPRGWEVIFH FLFEHFGLPE NHNIIFLLVG TFPVLLDALF KYWIFRHLNR
     HSPATVATFQ AMVE