ID   ISPT_SYNY3              Reviewed;         249 AA.
AC   Q55482;
DT   01-NOV-1997, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1997, sequence version 1.
DT   03-AUG-2022, entry version 122.
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}; OrderedLocusNames=sll0506;
OS   Synechocystis sp. (strain PCC 6803 / Kazusa).
OC   Bacteria; Cyanobacteria; Synechococcales; Merismopediaceae; Synechocystis;
OC   unclassified Synechocystis.
OX   NCBI_TaxID=1111708;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 27184 / PCC 6803 / N-1;
RX   PubMed=8590279; DOI=10.1093/dnares/2.4.153;
RA   Kaneko T., Tanaka A., Sato S., Kotani H., Sazuka T., Miyajima N.,
RA   Sugiura M., Tabata S.;
RT   "Sequence analysis of the genome of the unicellular cyanobacterium
RT   Synechocystis sp. strain PCC6803. I. Sequence features in the 1 Mb region
RT   from map positions 64% to 92% of the genome.";
RL   DNA Res. 2:153-166(1995).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 6803 / Kazusa;
RX   PubMed=8905231; DOI=10.1093/dnares/3.3.109;
RA   Kaneko T., Sato S., Kotani H., Tanaka A., Asamizu E., Nakamura Y.,
RA   Miyajima N., Hirosawa M., Sugiura M., Sasamoto S., Kimura T., Hosouchi T.,
RA   Matsuno A., Muraki A., Nakazaki N., Naruo K., Okumura S., Shimpo S.,
RA   Takeuchi C., Wada T., Watanabe A., Yamada M., Yasuda M., Tabata S.;
RT   "Sequence analysis of the genome of the unicellular cyanobacterium
RT   Synechocystis sp. strain PCC6803. II. Sequence determination of the entire
RT   genome and assignment of potential protein-coding regions.";
RL   DNA Res. 3:109-136(1996).
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; BA000022; BAA10829.1; -; Genomic_DNA.
DR   PIR; S75982; S75982.
DR   AlphaFoldDB; Q55482; -.
DR   SMR; Q55482; -.
DR   STRING; 1148.1001342; -.
DR   PaxDb; Q55482; -.
DR   EnsemblBacteria; BAA10829; BAA10829; BAA10829.
DR   KEGG; syn:sll0506; -.
DR   eggNOG; COG0020; Bacteria.
DR   InParanoid; Q55482; -.
DR   OMA; PRTEGHK; -.
DR   PhylomeDB; Q55482; -.
DR   Proteomes; UP000001425; Chromosome.
DR   GO; GO:0000287; F:magnesium ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0002094; F:polyprenyltransferase activity; IBA:GO_Central.
DR   GO; GO:0016094; P:polyprenol biosynthetic process; IBA:GO_Central.
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; Reference proteome; Transferase.
FT   CHAIN           1..249
FT                   /note="Isoprenyl transferase"
FT                   /id="PRO_0000123700"
FT   ACT_SITE        29
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   ACT_SITE        77
FT                   /note="Proton acceptor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         29
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         30..33
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         34
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         42
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         46
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         74..76
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         78
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         80
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         197
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         203..205
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
FT   BINDING         216
FT                   /ligand="Mg(2+)"
FT                   /ligand_id="ChEBI:CHEBI:18420"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_01139"
SQ   SEQUENCE   249 AA;  28823 MW;  113ED82DA0058932 CRC64;
     MTIKPVILET LPPDLDQQRL PQHVAVIMDG NGRWAKQRGM PRIMGHQRGV DSLKNLLRCC
     DDWGIAALTA YAFSTENWGR PLEEVEFLMT LFERVLRREL KEMMAENVRI RFVGNLTSLP
     RSLQDEIARS MEDTKNNTGI RFTVATNYGG RQEIVHVCQA IAREVQSGKL DPETIDEGVV
     EKYLYTEGLS HPDLLIRTSG ELRISNFLLW QMAYAEIYVT STLWPDFDRQ AFHLALRDYQ
     QRHRRFGKV