ID   PCRB_ALKHC              Reviewed;         229 AA.
AC   Q9KF39;
DT   23-JAN-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   03-AUG-2022, entry version 115.
DE   RecName: Full=Heptaprenylglyceryl phosphate synthase {ECO:0000255|HAMAP-Rule:MF_00112};
DE            Short=HepGP synthase {ECO:0000255|HAMAP-Rule:MF_00112};
DE            EC=2.5.1.n9 {ECO:0000255|HAMAP-Rule:MF_00112};
DE   AltName: Full=Glycerol-1-phosphate heptaprenyltransferase {ECO:0000255|HAMAP-Rule:MF_00112};
GN   Name=pcrB {ECO:0000255|HAMAP-Rule:MF_00112}; OrderedLocusNames=BH0647;
OS   Alkalihalobacillus halodurans (strain ATCC BAA-125 / DSM 18197 / FERM 7344
OS   / JCM 9153 / C-125) (Bacillus halodurans).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Alkalihalobacillus.
OX   NCBI_TaxID=272558;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-125 / DSM 18197 / FERM 7344 / JCM 9153 / C-125;
RX   PubMed=11058132; DOI=10.1093/nar/28.21.4317;
RA   Takami H., Nakasone K., Takaki Y., Maeno G., Sasaki R., Masui N., Fuji F.,
RA   Hirama C., Nakamura Y., Ogasawara N., Kuhara S., Horikoshi K.;
RT   "Complete genome sequence of the alkaliphilic bacterium Bacillus halodurans
RT   and genomic sequence comparison with Bacillus subtilis.";
RL   Nucleic Acids Res. 28:4317-4331(2000).
CC   -!- FUNCTION: Prenyltransferase that catalyzes in vivo the transfer of the
CC       heptaprenyl moiety of heptaprenyl pyrophosphate (HepPP; 35 carbon
CC       atoms) to the C3 hydroxyl of sn-glycerol-1-phosphate (G1P), producing
CC       heptaprenylglyceryl phosphate (HepGP). This reaction is an ether-bond-
CC       formation step in the biosynthesis of archaea-type G1P-based membrane
CC       lipids found in Bacillales. {ECO:0000255|HAMAP-Rule:MF_00112}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=all-trans-heptaprenyl diphosphate + sn-glycerol 1-phosphate =
CC         3-heptaprenyl-sn-glycero-1-phosphate + diphosphate;
CC         Xref=Rhea:RHEA:33495, ChEBI:CHEBI:33019, ChEBI:CHEBI:57685,
CC         ChEBI:CHEBI:58206, ChEBI:CHEBI:64781; EC=2.5.1.n9;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00112};
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00112};
CC   -!- PATHWAY: Membrane lipid metabolism; glycerophospholipid metabolism.
CC       {ECO:0000255|HAMAP-Rule:MF_00112}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_00112}.
CC   -!- SIMILARITY: Belongs to the GGGP/HepGP synthase family. Group I
CC       subfamily. {ECO:0000255|HAMAP-Rule:MF_00112}.
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DR   EMBL; BA000004; BAB04366.1; -; Genomic_DNA.
DR   PIR; G83730; G83730.
DR   AlphaFoldDB; Q9KF39; -.
DR   SMR; Q9KF39; -.
DR   STRING; 272558.10173261; -.
DR   EnsemblBacteria; BAB04366; BAB04366; BAB04366.
DR   KEGG; bha:BH0647; -.
DR   eggNOG; COG1646; Bacteria.
DR   HOGENOM; CLU_095211_0_0_9; -.
DR   OMA; TGAHKEW; -.
DR   UniPathway; UPA00940; -.
DR   Proteomes; UP000001258; Chromosome.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0002094; F:polyprenyltransferase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0046474; P:glycerophospholipid biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd02812; PcrB_like; 1.
DR   Gene3D; 3.20.20.390; -; 1.
DR   HAMAP; MF_00112; GGGP_HepGP_synthase; 1.
DR   InterPro; IPR039074; GGGP/HepGP_synthase_I.
DR   InterPro; IPR038597; GGGP/HepGP_synthase_sf.
DR   InterPro; IPR008205; GGGP_HepGP_synthase.
DR   PANTHER; PTHR40029; PTHR40029; 1.
DR   Pfam; PF01884; PcrB; 1.
DR   TIGRFAMs; TIGR01768; GGGP-family; 1.
PE   3: Inferred from homology;
KW   Lipid biosynthesis; Lipid metabolism; Magnesium; Metal-binding;
KW   Phospholipid biosynthesis; Phospholipid metabolism; Reference proteome;
KW   Transferase.
FT   CHAIN           1..229
FT                   /note="Heptaprenylglyceryl phosphate synthase"
FT                   /id="PRO_0000138707"
FT   BINDING         13
FT                   /ligand="sn-glycerol 1-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:57685"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00112"
FT   BINDING         15
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00112"
FT   BINDING         41
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00112"
FT   BINDING         160..165
FT                   /ligand="sn-glycerol 1-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:57685"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00112"
FT   BINDING         190
FT                   /ligand="sn-glycerol 1-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:57685"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00112"
FT   BINDING         210..211
FT                   /ligand="sn-glycerol 1-phosphate"
FT                   /ligand_id="ChEBI:CHEBI:57685"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00112"
SQ   SEQUENCE   229 AA;  25391 MW;  A5F2461C9FC7B2CF CRC64;
     MMLEFQEWRH VFKLDPNKEL NDDDLEAICE SGTDGILVGG SDGVTLDNTL QLLARIRRFS
     VSCALEVSNL ESITPGFDHY FIPSVVNSGE VKWISGLHHE AVKEFGPIMN WDEIVMEGYC
     IMNPDSKAAT LTSAKTDLAN EDVVAYARMV ENMYQFPVFY LEYSGTFGDP QLVEEVSQVL
     TKTKLFYGGG IRTVEQAEQM APFADTVVVG NVIYDDVQAA LATIAAVKK