ID   ISPT_RICS2              Reviewed;         226 AA.
AC   Q7PBU9;
DT   16-FEB-2004, integrated into UniProtKB/Swiss-Prot.
DT   15-DEC-2003, sequence version 1.
DT   03-AUG-2022, entry version 72.
DE   RecName: Full=Isoprenyl transferase {ECO:0000255|HAMAP-Rule:MF_01139};
DE            EC=2.5.1.- {ECO:0000255|HAMAP-Rule:MF_01139};
GN   Name=uppS {ECO:0000255|HAMAP-Rule:MF_01139}; ORFNames=rsib_orf.108;
OS   Rickettsia sibirica (strain ATCC VR-151 / 246).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Rickettsia; spotted fever group;
OC   Rickettsia sibirica subgroup.
OX   NCBI_TaxID=272951;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC VR-151 / 246;
RA   Malek J.A., Eremeeva M.E., Dasch G.A.;
RL   Submitted (FEB-2003) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Catalyzes the condensation of isopentenyl diphosphate (IPP)
CC       with allylic pyrophosphates generating different type of terpenoids.
CC       {ECO:0000255|HAMAP-Rule:MF_01139}.
CC   -!- COFACTOR:
CC       Name=Mg(2+); Xref=ChEBI:CHEBI:18420;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_01139};
CC       Note=Binds 2 magnesium ions per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_01139};
CC   -!- SUBUNIT: Homodimer. {ECO:0000255|HAMAP-Rule:MF_01139}.
CC   -!- SIMILARITY: Belongs to the UPP synthase family. {ECO:0000255|HAMAP-
CC       Rule:MF_01139}.
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DR   EMBL; AABW01000001; EAA25383.1; -; Genomic_DNA.
DR   RefSeq; WP_004995757.1; NZ_AABW01000001.1.
DR   AlphaFoldDB; Q7PBU9; -.
DR   SMR; Q7PBU9; -.
DR   STRING; 272951.rsib_orf108; -.
DR   EnsemblBacteria; EAA25383; EAA25383; rsib_orf108.
DR   GeneID; 45539160; -.
DR   HOGENOM; CLU_038505_1_1_5; -.
DR   Proteomes; UP000004455; Unassembled WGS sequence.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0004659; F:prenyltransferase activity; IEA:UniProtKB-UniRule.
DR   CDD; cd00475; Cis_IPPS; 1.
DR   Gene3D; 3.40.1180.10; -; 1.
DR   HAMAP; MF_01139; ISPT; 1.
DR   InterPro; IPR001441; UPP_synth-like.
DR   InterPro; IPR018520; UPP_synth-like_CS.
DR   InterPro; IPR036424; UPP_synth-like_sf.
DR   PANTHER; PTHR10291; PTHR10291; 1.
DR   Pfam; PF01255; Prenyltransf; 1.
DR   SUPFAM; SSF64005; SSF64005; 1.
DR   TIGRFAMs; TIGR00055; uppS; 1.
DR   PROSITE; PS01066; UPP_SYNTHASE; 1.
PE   3: Inferred from homology;
KW   Magnesium; Metal-binding; Transferase.
FT   CHAIN           1..226
FT                   /note="Isoprenyl transferase"
FT                   /id="PRO_0000123664"
FT   ACT_SITE        12
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   ACT_SITE        60
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         12
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         13..16
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         17
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         25
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         29
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         57..59
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         61
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         63
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         174
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         180..182
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         193
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
SQ   SEQUENCE   226 AA;  25979 MW;  0F0A2FE31B5D55C1 CRC64;
     MTNIKHLAII MDGNARWADQ HNLTKSEGHK AGADKIRELL PEFLNLNIPY ITLYTFSSEN
     WQRSSTEVDF LIKLLSIYLK TELNNLHKNG VKIKVIGRLT LLSSSLQKQI NNAIELTKNN
     NKITLCIAFS YGSRQEIVDA CTKIITSGKK AVSDSDIQHA LYDPEMPDVD LLIRPGGVYR
     ISNFLLWQAA YAELYFSPKY WPDFNKYDIQ EAINDYSKRK RTFGKR