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ISPG_HELAH
ID   ISPG_HELAH              Reviewed;         358 AA.
AC   Q17XU2;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   25-JUL-2006, sequence version 1.
DT   03-AUG-2022, entry version 103.
DE   RecName: Full=4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase (flavodoxin) {ECO:0000255|HAMAP-Rule:MF_00159};
DE            EC=1.17.7.3 {ECO:0000255|HAMAP-Rule:MF_00159};
DE   AltName: Full=1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate synthase {ECO:0000255|HAMAP-Rule:MF_00159};
GN   Name=ispG {ECO:0000255|HAMAP-Rule:MF_00159}; OrderedLocusNames=Hac_0735;
OS   Helicobacter acinonychis (strain Sheeba).
OC   Bacteria; Proteobacteria; Epsilonproteobacteria; Campylobacterales;
OC   Helicobacteraceae; Helicobacter.
OX   NCBI_TaxID=382638;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sheeba;
RX   PubMed=16789826; DOI=10.1371/journal.pgen.0020120;
RA   Eppinger M., Baar C., Linz B., Raddatz G., Lanz C., Keller H., Morelli G.,
RA   Gressmann H., Achtman M., Schuster S.C.;
RT   "Who ate whom? Adaptive Helicobacter genomic changes that accompanied a
RT   host jump from early humans to large felines.";
RL   PLoS Genet. 2:1097-1110(2006).
CC   -!- FUNCTION: Converts 2C-methyl-D-erythritol 2,4-cyclodiphosphate (ME-
CC       2,4cPP) into 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate.
CC       {ECO:0000255|HAMAP-Rule:MF_00159}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=(2E)-4-hydroxy-3-methylbut-2-enyl diphosphate + 2 H(+) + H2O +
CC         oxidized [flavodoxin] = 2-C-methyl-D-erythritol 2,4-cyclic
CC         diphosphate + reduced [flavodoxin]; Xref=Rhea:RHEA:43604, Rhea:RHEA-
CC         COMP:10622, Rhea:RHEA-COMP:10623, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:57618, ChEBI:CHEBI:58210,
CC         ChEBI:CHEBI:58483, ChEBI:CHEBI:128753; EC=1.17.7.3;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00159};
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00159};
CC       Note=Binds 1 [4Fe-4S] cluster. {ECO:0000255|HAMAP-Rule:MF_00159};
CC   -!- PATHWAY: Isoprenoid biosynthesis; isopentenyl diphosphate biosynthesis
CC       via DXP pathway; isopentenyl diphosphate from 1-deoxy-D-xylulose 5-
CC       phosphate: step 5/6. {ECO:0000255|HAMAP-Rule:MF_00159}.
CC   -!- SIMILARITY: Belongs to the IspG family. {ECO:0000255|HAMAP-
CC       Rule:MF_00159}.
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DR   EMBL; AM260522; CAJ99534.1; -; Genomic_DNA.
DR   RefSeq; WP_011577647.1; NC_008229.1.
DR   AlphaFoldDB; Q17XU2; -.
DR   SMR; Q17XU2; -.
DR   STRING; 382638.Hac_0735; -.
DR   EnsemblBacteria; CAJ99534; CAJ99534; Hac_0735.
DR   KEGG; hac:Hac_0735; -.
DR   eggNOG; COG0821; Bacteria.
DR   HOGENOM; CLU_042258_0_0_7; -.
DR   OMA; PTCGRTQ; -.
DR   OrthoDB; 665306at2; -.
DR   BioCyc; HACI382638:HAC_RS03210-MON; -.
DR   UniPathway; UPA00056; UER00096.
DR   Proteomes; UP000000775; Chromosome.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0046429; F:4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0005506; F:iron ion binding; IEA:InterPro.
DR   GO; GO:0019288; P:isopentenyl diphosphate biosynthetic process, methylerythritol 4-phosphate pathway; IEA:UniProtKB-UniPathway.
DR   GO; GO:0016114; P:terpenoid biosynthetic process; IEA:UniProtKB-UniRule.
DR   Gene3D; 3.20.20.20; -; 1.
DR   Gene3D; 3.30.413.10; -; 1.
DR   HAMAP; MF_00159; IspG; 1.
DR   InterPro; IPR011005; Dihydropteroate_synth-like.
DR   InterPro; IPR036849; Enolase-like_C_sf.
DR   InterPro; IPR016425; IspG_bac.
DR   InterPro; IPR004588; IspG_bac-typ.
DR   InterPro; IPR045854; NO2/SO3_Rdtase_4Fe4S_sf.
DR   PANTHER; PTHR30454; PTHR30454; 1.
DR   Pfam; PF04551; GcpE; 1.
DR   PIRSF; PIRSF004640; IspG; 1.
DR   SUPFAM; SSF51604; SSF51604; 1.
DR   SUPFAM; SSF56014; SSF56014; 1.
DR   TIGRFAMs; TIGR00612; ispG_gcpE; 1.
PE   3: Inferred from homology;
KW   4Fe-4S; Iron; Iron-sulfur; Isoprene biosynthesis; Metal-binding;
KW   Oxidoreductase.
FT   CHAIN           1..358
FT                   /note="4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase
FT                   (flavodoxin)"
FT                   /id="PRO_1000011474"
FT   BINDING         264
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00159"
FT   BINDING         267
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00159"
FT   BINDING         299
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00159"
FT   BINDING         306
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00159"
SQ   SEQUENCE   358 AA;  38992 MW;  FA8A41AB183155A2 CRC64;
     MLENRVKTKQ IFIGGVAIGG GAPISTQSMT FSKTADIQST KNQIDRLKLA GADLVRVAVS
     NEKDALALKE LKKVSPLPLI ADIHFHYKFA LIAAQSVDAI RINPGNIGSK DKIKAVVDAC
     KEKNIPIRIG VNAGSLEKQF DQKYGPTVKG MVESALYNAK LLEDLDFTNF KISLKASDVI
     RTIEAYRMLR PLVIYPFHLG VTEAGNLFSS SIKSAMALGG LLMEGIGDTM RISITGELEN
     EIKVARAILR YSGRLKEGIN LISCPTCGRI EANLVDMAGK VEKRLSHIKT PLDISVMGCV
     VNALGEAKHA DMAIAFGNRS GLIIKEGKVI HKLAEKDLFE TFVTEVENLA KEREKTLN
 
 
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