ID   CDPAS_HALS3             Reviewed;         181 AA.
AC   B0R737;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   08-APR-2008, sequence version 1.
DT   25-MAY-2022, entry version 70.
DE   RecName: Full=CDP-archaeol synthase {ECO:0000255|HAMAP-Rule:MF_01117};
DE            EC=2.7.7.67 {ECO:0000255|HAMAP-Rule:MF_01117};
DE   AltName: Full=CDP-2,3-bis-(O-geranylgeranyl)-sn-glycerol synthase {ECO:0000255|HAMAP-Rule:MF_01117};
GN   Name=carS {ECO:0000255|HAMAP-Rule:MF_01117}; OrderedLocusNames=OE_3954R;
OS   Halobacterium salinarum (strain ATCC 29341 / DSM 671 / R1).
OC   Archaea; Euryarchaeota; Stenosarchaea group; Halobacteria; Halobacteriales;
OC   Halobacteriaceae; Halobacterium.
OX   NCBI_TaxID=478009;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29341 / DSM 671 / R1;
RX   PubMed=18313895; DOI=10.1016/j.ygeno.2008.01.001;
RA   Pfeiffer F., Schuster S.C., Broicher A., Falb M., Palm P., Rodewald K.,
RA   Ruepp A., Soppa J., Tittor J., Oesterhelt D.;
RT   "Evolution in the laboratory: the genome of Halobacterium salinarum strain
RT   R1 compared to that of strain NRC-1.";
RL   Genomics 91:335-346(2008).
CC   -!- FUNCTION: Catalyzes the formation of CDP-2,3-bis-(O-geranylgeranyl)-sn-
CC       glycerol (CDP-archaeol) from 2,3-bis-(O-geranylgeranyl)-sn-glycerol 1-
CC       phosphate (DGGGP) and CTP. This reaction is the third ether-bond-
CC       formation step in the biosynthesis of archaeal membrane lipids.
CC       {ECO:0000255|HAMAP-Rule:MF_01117}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=2,3-bis-O-(geranylgeranyl)-sn-glycerol 1-phosphate + CTP +
CC         H(+) = CDP-2,3-bis-O-(geranylgeranyl)-sn-glycerol + diphosphate;
CC         Xref=Rhea:RHEA:25690, ChEBI:CHEBI:15378, ChEBI:CHEBI:33019,
CC         ChEBI:CHEBI:37563, ChEBI:CHEBI:58837, ChEBI:CHEBI:58838; EC=2.7.7.67;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01117};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01117};
CC   -!- PATHWAY: Membrane lipid metabolism; glycerophospholipid metabolism.
CC       {ECO:0000255|HAMAP-Rule:MF_01117}.
CC   -!- SUBCELLULAR LOCATION: Cell membrane {ECO:0000255|HAMAP-Rule:MF_01117};
CC       Multi-pass membrane protein {ECO:0000255|HAMAP-Rule:MF_01117}.
CC   -!- SIMILARITY: Belongs to the CDP-archaeol synthase family.
CC       {ECO:0000255|HAMAP-Rule:MF_01117}.
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DR   EMBL; AM774415; CAP14556.1; -; Genomic_DNA.
DR   RefSeq; WP_012289436.1; NC_010364.1.
DR   AlphaFoldDB; B0R737; -.
DR   SMR; B0R737; -.
DR   EnsemblBacteria; CAP14556; CAP14556; OE_3954R.
DR   GeneID; 5954173; -.
DR   GeneID; 62887420; -.
DR   KEGG; hsl:OE_3954R; -.
DR   HOGENOM; CLU_105710_0_0_2; -.
DR   OMA; GKTWRGT; -.
DR   PhylomeDB; B0R737; -.
DR   UniPathway; UPA00940; -.
DR   Proteomes; UP000001321; Chromosome.
DR   GO; GO:0005887; C:integral component of plasma membrane; IEA:UniProtKB-UniRule.
DR   GO; GO:0043338; F:CTP:2,3-di-O-geranylgeranyl-sn-glycero-1-phosphate cytidyltransferase activity; IEA:UniProtKB-EC.
DR   GO; GO:0046474; P:glycerophospholipid biosynthetic process; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_01117; CDP_archaeol_synth; 1.
DR   InterPro; IPR032690; CarS.
DR   InterPro; IPR002726; CarS_archaea.
DR   PANTHER; PTHR39650; PTHR39650; 1.
DR   Pfam; PF01864; CarS-like; 1.
PE   3: Inferred from homology;
KW   Cell membrane; Lipid biosynthesis; Lipid metabolism; Magnesium; Membrane;
KW   Phospholipid biosynthesis; Phospholipid metabolism; Transferase;
KW   Transmembrane; Transmembrane helix.
FT   CHAIN           1..181
FT                   /note="CDP-archaeol synthase"
FT                   /id="PRO_1000137224"
FT   TRANSMEM        7..27
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01117"
FT   TRANSMEM        55..75
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01117"
FT   TRANSMEM        80..100
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01117"
FT   TRANSMEM        128..148
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01117"
FT   TRANSMEM        150..170
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01117"
SQ   SEQUENCE   181 AA;  18243 MW;  29BD7F736040D521 CRC64;
     MDLVGTVVVA VWAMLPAYVP NNAAVLAGGG RPIDGGRSLG GRRLLGDGKT WRGTAVGTAA
     GVALAVALNA LRPAAADALG VVLPAFPPAA MGTLAFGAMV GDIAASFLKR RTGRQRGAAF
     PVVDQLDFVV VALALTALAV PAWVGDTFGL PVLVTVAVLT PALHLLTNGI AYALGVKDEP
     W