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ISPH_BACCQ
ID   ISPH_BACCQ              Reviewed;         316 AA.
AC   B9IY56;
DT   28-JUL-2009, integrated into UniProtKB/Swiss-Prot.
DT   24-MAR-2009, sequence version 1.
DT   03-AUG-2022, entry version 73.
DE   RecName: Full=4-hydroxy-3-methylbut-2-enyl diphosphate reductase {ECO:0000255|HAMAP-Rule:MF_00191};
DE            Short=HMBPP reductase {ECO:0000255|HAMAP-Rule:MF_00191};
DE            EC=1.17.7.4 {ECO:0000255|HAMAP-Rule:MF_00191};
GN   Name=ispH {ECO:0000255|HAMAP-Rule:MF_00191}; OrderedLocusNames=BCQ_4075;
OS   Bacillus cereus (strain Q1).
OC   Bacteria; Firmicutes; Bacilli; Bacillales; Bacillaceae; Bacillus;
OC   Bacillus cereus group.
OX   NCBI_TaxID=361100;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Q1;
RX   PubMed=19060151; DOI=10.1128/jb.01629-08;
RA   Xiong Z., Jiang Y., Qi D., Lu H., Yang F., Yang J., Chen L., Sun L., Xu X.,
RA   Xue Y., Zhu Y., Jin Q.;
RT   "Complete genome sequence of the extremophilic Bacillus cereus strain Q1
RT   with industrial applications.";
RL   J. Bacteriol. 191:1120-1121(2009).
CC   -!- FUNCTION: Catalyzes the conversion of 1-hydroxy-2-methyl-2-(E)-butenyl
CC       4-diphosphate (HMBPP) into a mixture of isopentenyl diphosphate (IPP)
CC       and dimethylallyl diphosphate (DMAPP). Acts in the terminal step of the
CC       DOXP/MEP pathway for isoprenoid precursor biosynthesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00191}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=H2O + isopentenyl diphosphate + 2 oxidized [2Fe-2S]-
CC         [ferredoxin] = (2E)-4-hydroxy-3-methylbut-2-enyl diphosphate + 2 H(+)
CC         + 2 reduced [2Fe-2S]-[ferredoxin]; Xref=Rhea:RHEA:24488, Rhea:RHEA-
CC         COMP:10000, Rhea:RHEA-COMP:10001, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:33737, ChEBI:CHEBI:33738,
CC         ChEBI:CHEBI:128753, ChEBI:CHEBI:128769; EC=1.17.7.4;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00191};
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=dimethylallyl diphosphate + H2O + 2 oxidized [2Fe-2S]-
CC         [ferredoxin] = (2E)-4-hydroxy-3-methylbut-2-enyl diphosphate + 2 H(+)
CC         + 2 reduced [2Fe-2S]-[ferredoxin]; Xref=Rhea:RHEA:24825, Rhea:RHEA-
CC         COMP:10000, Rhea:RHEA-COMP:10001, ChEBI:CHEBI:15377,
CC         ChEBI:CHEBI:15378, ChEBI:CHEBI:33737, ChEBI:CHEBI:33738,
CC         ChEBI:CHEBI:57623, ChEBI:CHEBI:128753; EC=1.17.7.4;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00191};
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00191};
CC       Note=Binds 1 [4Fe-4S] cluster per subunit. {ECO:0000255|HAMAP-
CC       Rule:MF_00191};
CC   -!- PATHWAY: Isoprenoid biosynthesis; dimethylallyl diphosphate
CC       biosynthesis; dimethylallyl diphosphate from (2E)-4-hydroxy-3-
CC       methylbutenyl diphosphate: step 1/1. {ECO:0000255|HAMAP-Rule:MF_00191}.
CC   -!- PATHWAY: Isoprenoid biosynthesis; isopentenyl diphosphate biosynthesis
CC       via DXP pathway; isopentenyl diphosphate from 1-deoxy-D-xylulose 5-
CC       phosphate: step 6/6. {ECO:0000255|HAMAP-Rule:MF_00191}.
CC   -!- SIMILARITY: Belongs to the IspH family. {ECO:0000255|HAMAP-
CC       Rule:MF_00191}.
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DR   EMBL; CP000227; ACM14502.1; -; Genomic_DNA.
DR   RefSeq; WP_000706669.1; NC_011969.1.
DR   AlphaFoldDB; B9IY56; -.
DR   SMR; B9IY56; -.
DR   EnsemblBacteria; ACM14502; ACM14502; BCQ_4075.
DR   GeneID; 59155138; -.
DR   GeneID; 64199635; -.
DR   KEGG; bcq:BCQ_4075; -.
DR   HOGENOM; CLU_027486_0_0_9; -.
DR   OMA; HNKYVVD; -.
DR   UniPathway; UPA00056; UER00097.
DR   UniPathway; UPA00059; UER00105.
DR   Proteomes; UP000000441; Chromosome.
DR   GO; GO:0051539; F:4 iron, 4 sulfur cluster binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0051745; F:4-hydroxy-3-methylbut-2-en-1-yl diphosphate reductase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR   GO; GO:0050992; P:dimethylallyl diphosphate biosynthetic process; IEA:UniProtKB-UniRule.
DR   GO; GO:0019288; P:isopentenyl diphosphate biosynthetic process, methylerythritol 4-phosphate pathway; IEA:UniProtKB-UniRule.
DR   GO; GO:0016114; P:terpenoid biosynthetic process; IEA:UniProtKB-UniRule.
DR   CDD; cd13944; lytB_ispH; 1.
DR   HAMAP; MF_00191; IspH; 1.
DR   InterPro; IPR003451; LytB/IspH.
DR   PANTHER; PTHR30426; PTHR30426; 1.
DR   Pfam; PF02401; LYTB; 1.
DR   TIGRFAMs; TIGR00216; ispH_lytB; 1.
PE   3: Inferred from homology;
KW   4Fe-4S; Iron; Iron-sulfur; Isoprene biosynthesis; Metal-binding;
KW   Oxidoreductase.
FT   CHAIN           1..316
FT                   /note="4-hydroxy-3-methylbut-2-enyl diphosphate reductase"
FT                   /id="PRO_1000124276"
FT   ACT_SITE        133
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT   BINDING         12
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT   BINDING         43
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT   BINDING         81
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT   BINDING         103
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT   BINDING         131
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT   BINDING         170
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT   BINDING         198
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT   BINDING         226..228
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT   BINDING         271
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
SQ   SEQUENCE   316 AA;  34967 MW;  08C141F40FE642DB CRC64;
     MKIVKISPRG YCYGVVDAMV IARNAALDTS LPRPIYILGM IVHNKHVTDA FEEDGIITLD
     GPSRLDILDK IDSGTVIFTA HGVSPEVKQR AKEKGLTTID ATCPDVTKTH DLIEAKKAEG
     YHVIYIGKKN HPEPEGAVGI APDIVHLIER ADDLKTLEIP TDKILVTNQT TMSQWDVQHL
     MEDIQKKFPT AEFHKEICLA TQVRQEAVAK QADVADLTIV VGDPKSNNSN RLAQVSQEIA
     GTKAYRVADV SEIKLEWLQG VENVAVTAGA STPTPITKEV IAFLEQYDPM NPATWERVRK
     VPLQKILPRV KVKKEQ
 
 
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