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Entry: D2TGK7_CITRI
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ID   D2TGK7_CITRI            Unreviewed;       316 AA.
AC   D2TGK7;
DT   02-MAR-2010, integrated into UniProtKB/TrEMBL.
DT   02-MAR-2010, sequence version 1.
DT   24-JAN-2024, entry version 83.
DE   RecName: Full=4-hydroxy-3-methylbut-2-enyl diphosphate reductase {ECO:0000256|HAMAP-Rule:MF_00191};
DE            Short=HMBPP reductase {ECO:0000256|HAMAP-Rule:MF_00191};
DE            EC=1.17.7.4 {ECO:0000256|HAMAP-Rule:MF_00191};
GN   Name=ispH {ECO:0000256|HAMAP-Rule:MF_00191,
GN   ECO:0000313|EMBL:CBG86807.1};
GN   Synonyms=lytB {ECO:0000313|EMBL:CBG86807.1};
GN   OrderedLocusNames=ROD_00261 {ECO:0000313|EMBL:CBG86807.1};
OS   Citrobacter rodentium (strain ICC168) (Citrobacter freundii biotype 4280).
OC   Bacteria; Pseudomonadota; Gammaproteobacteria; Enterobacterales;
OC   Enterobacteriaceae; Citrobacter.
OX   NCBI_TaxID=637910 {ECO:0000313|EMBL:CBG86807.1, ECO:0000313|Proteomes:UP000001889};
RN   [1] {ECO:0000313|EMBL:CBG86807.1, ECO:0000313|Proteomes:UP000001889}
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ICC168 {ECO:0000313|EMBL:CBG86807.1,
RC   ECO:0000313|Proteomes:UP000001889};
RX   PubMed=19897651; DOI=10.1128/JB.01144-09;
RA   Petty N.K., Bulgin R., Crepin V.F., Cerdeno-Tarraga A.M., Schroeder G.N.,
RA   Quail M.A., Lennard N., Corton C., Barron A., Clark L., Toribio A.L.,
RA   Parkhill J., Dougan G., Frankel G., Thomson N.R.;
RT   "The Citrobacter rodentium genome sequence reveals convergent evolution
RT   with human pathogenic Escherichia coli.";
RL   J. Bacteriol. 192:525-538(2010).
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:0000256|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:0000256|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:0000256|HAMAP-Rule:MF_00191};
CC   -!- COFACTOR:
CC       Name=[4Fe-4S] cluster; Xref=ChEBI:CHEBI:49883;
CC         Evidence={ECO:0000256|HAMAP-Rule:MF_00191};
CC       Note=Binds 1 [4Fe-4S] cluster per subunit. {ECO:0000256|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:0000256|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:0000256|HAMAP-Rule:MF_00191}.
CC   -!- SUBUNIT: Homodimer. {ECO:0000256|HAMAP-Rule:MF_00191}.
CC   -!- SIMILARITY: Belongs to the IspH family. {ECO:0000256|HAMAP-
CC       Rule:MF_00191}.
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DR   EMBL; FN543502; CBG86807.1; -; Genomic_DNA.
DR   RefSeq; WP_012904412.1; NC_013716.1.
DR   AlphaFoldDB; D2TGK7; -.
DR   STRING; 637910.ROD_00261; -.
DR   KEGG; cro:ROD_00261; -.
DR   eggNOG; COG0761; Bacteria.
DR   HOGENOM; CLU_027486_1_0_6; -.
DR   OMA; HNEICLA; -.
DR   OrthoDB; 9804068at2; -.
DR   UniPathway; UPA00056; UER00097.
DR   UniPathway; UPA00059; UER00105.
DR   Proteomes; UP000001889; 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   Gene3D; 3.40.50.11270; -; 1.
DR   Gene3D; 3.40.1010.20; 4-hydroxy-3-methylbut-2-enyl diphosphate reductase, catalytic domain; 2.
DR   HAMAP; MF_00191; IspH; 1.
DR   InterPro; IPR003451; LytB/IspH.
DR   NCBIfam; TIGR00216; ispH_lytB; 1.
DR   PANTHER; PTHR30426; 4-HYDROXY-3-METHYLBUT-2-ENYL DIPHOSPHATE REDUCTASE; 1.
DR   PANTHER; PTHR30426:SF0; 4-HYDROXY-3-METHYLBUT-2-ENYL DIPHOSPHATE REDUCTASE; 1.
DR   Pfam; PF02401; LYTB; 1.
PE   3: Inferred from homology;
KW   4Fe-4S {ECO:0000256|ARBA:ARBA00022485, ECO:0000256|HAMAP-Rule:MF_00191};
KW   Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_00191};
KW   Iron-sulfur {ECO:0000256|ARBA:ARBA00023014, ECO:0000256|HAMAP-
KW   Rule:MF_00191};
KW   Isoprene biosynthesis {ECO:0000256|ARBA:ARBA00023229, ECO:0000256|HAMAP-
KW   Rule:MF_00191};
KW   Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW   Rule:MF_00191};
KW   Oxidoreductase {ECO:0000256|HAMAP-Rule:MF_00191,
KW   ECO:0000313|EMBL:CBG86807.1}.
FT   ACT_SITE        126
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT   BINDING         12
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT   BINDING         41
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT   BINDING         74
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT   BINDING         96
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT   BINDING         124
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT   BINDING         167
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT   BINDING         197
FT                   /ligand="[4Fe-4S] cluster"
FT                   /ligand_id="ChEBI:CHEBI:49883"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT   BINDING         225..227
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT   BINDING         269
FT                   /ligand="substrate"
FT                   /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
SQ   SEQUENCE   316 AA;  34566 MW;  CBB546C6A6685850 CRC64;
     MQILLANPRG FCAGVDRAIS IVENALAIYG APIYVRHEVV HNRYVVDSLR ERGAIFIEQI
     SEVPDGAILI FSAHGVSQAV RNEAKSRDLT VFDATCPLVT KVHMEVARAS RRGEESILIG
     HAGHPEVEGT MGQYSNPEGG MYLVESPEDV WTLNVKNEGK LSFMTQTTLS VDDTSDVIDA
     LRQRFPKIVG PRKDDICYAT TNRQEAVRRL AEQADVVLVV GSKNSSNSNR LAELAQRMGK
     TAFLIDDATD IQEAWVKEAK CVGVTAGASA PDILVQNVIT RLQALGGGEA IPLEGREENI
     VFEVPKELRM DVREIG
//
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