ISPH_CITK8
ID ISPH_CITK8 Reviewed; 316 AA.
AC A8ALT3;
DT 15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT 23-OCT-2007, sequence version 1.
DT 03-AUG-2022, entry version 84.
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=CKO_03363;
OS Citrobacter koseri (strain ATCC BAA-895 / CDC 4225-83 / SGSC4696).
OC Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC Enterobacteriaceae; Citrobacter.
OX NCBI_TaxID=290338;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC BAA-895 / CDC 4225-83 / SGSC4696;
RG The Citrobacter koseri Genome Sequencing Project;
RA McClelland M., Sanderson E.K., Porwollik S., Spieth J., Clifton W.S.,
RA Latreille P., Courtney L., Wang C., Pepin K., Bhonagiri V., Nash W.,
RA Johnson M., Thiruvilangam P., Wilson R.;
RL Submitted (AUG-2007) to the EMBL/GenBank/DDBJ databases.
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 -!- SUBUNIT: Homodimer. {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; CP000822; ABV14446.1; -; Genomic_DNA.
DR RefSeq; WP_012134149.1; NC_009792.1.
DR AlphaFoldDB; A8ALT3; -.
DR SMR; A8ALT3; -.
DR STRING; 290338.CKO_03363; -.
DR EnsemblBacteria; ABV14446; ABV14446; CKO_03363.
DR GeneID; 45137123; -.
DR KEGG; cko:CKO_03363; -.
DR HOGENOM; CLU_027486_1_0_6; -.
DR OMA; HNKYVVD; -.
DR OrthoDB; 1311145at2; -.
DR UniPathway; UPA00056; UER00097.
DR UniPathway; UPA00059; UER00105.
DR Proteomes; UP000008148; 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; Reference proteome.
FT CHAIN 1..316
FT /note="4-hydroxy-3-methylbut-2-enyl diphosphate reductase"
FT /id="PRO_1000021104"
FT ACT_SITE 126
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 41
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT BINDING 74
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT BINDING 96
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT BINDING 124
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT BINDING 167
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT BINDING 197
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT BINDING 225..227
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
FT BINDING 269
FT /ligand="substrate"
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00191"
SQ SEQUENCE 316 AA; 34405 MW; 506DD5B696ECA596 CRC64;
MQILLANPRG FCAGVDRAIS IVENALAIYG APIYVRHEVV HNRYVVDSLR ERGAIFIEQI
SEVPDGAILI FSAHGVSQAV RNEAKSRDLT VFDATCPLVT KVHMEVARAS RRGEESILIG
HAGHPEVEGT MGQYSNPEGG MYLVESPDDV LSLDVKNEGK LSFMTQTTLS VDDTSDVIDA
LRQRFPKIVG PRKDDICYAT TNRQEAVRAL AEQADVVLVV GSKNSSNSNR LAELAQRMGK
AAFLIDDATD IQEAWVKEAK CVGVTAGASA PDILVQNVIA RLQELGGGEA IPLEGREENI
VFEVPKELRV DVREVE
