ID   CEMA_HELAN              Reviewed;         229 AA.
AC   Q1KXU7;
DT   06-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT   30-MAY-2006, sequence version 1.
DT   03-AUG-2022, entry version 48.
DE   RecName: Full=Chloroplast envelope membrane protein;
GN   Name=cemA {ECO:0000255|HAMAP-Rule:MF_01308};
OS   Helianthus annuus (Common sunflower).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; campanulids; Asterales; Asteraceae; Asteroideae;
OC   Heliantheae alliance; Heliantheae; Helianthus.
OX   NCBI_TaxID=4232;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. HA383;
RA   Timme R.E., Kuehl J.V., Boore J.L., Jansen R.K.;
RT   "A comparison of the first two published chloroplast genomes in Asteraceae:
RT   Lactuca and Helianthus.";
RL   Submitted (JAN-2006) to the EMBL/GenBank/DDBJ databases.
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; DQ383815; ABD47158.1; -; Genomic_DNA.
DR   RefSeq; YP_588129.1; NC_007977.1.
DR   AlphaFoldDB; Q1KXU7; -.
DR   EnsemblPlants; mRNA:HanXRQr2_Chr02g0061581; CDS:HanXRQr2_Chr02g0061581.1; HanXRQr2_Chr02g0061581.
DR   GeneID; 4055660; -.
DR   Gramene; mRNA:HanXRQr2_Chr02g0061581; CDS:HanXRQr2_Chr02g0061581.1; HanXRQr2_Chr02g0061581.
DR   KEGG; han:4055660; -.
DR   OMA; FRYLNHI; -.
DR   OrthoDB; 1276845at2759; -.
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_0000275240"
FT   TRANSMEM        7..27
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        107..127
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
FT   TRANSMEM        189..209
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01308"
SQ   SEQUENCE   229 AA;  26968 MW;  B833FC9C3F5B0F3A CRC64;
     MAKKKAFTPL LYLVSIVFLP WWISLLFQKS LESWVTNWWN TRQSETFLND IEEKSILEKF
     IELEELLFLE EMIKEYSETH LQNLRIGIHK ETIQLIKIQN EGRIHTILHF STNIICFIIL
     SGYSILGNKE LVILNSWAQE FLYNLSDTIK AFSLLLLTDL CIGFHSPHGW ELMIGFVYKD
     FGFVHNDQII SGLVSTFPVI LDTILKYWIF RYLNRVSPSL VVIYHSMND