ID K9SKX0_9CYAN Unreviewed; 414 AA.
AC K9SKX0;
DT 06-MAR-2013, integrated into UniProtKB/TrEMBL.
DT 06-MAR-2013, sequence version 1.
DT 24-JAN-2024, entry version 53.
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 ORFNames=Pse7367_2597 {ECO:0000313|EMBL:AFY70853.1};
OS Pseudanabaena sp. PCC 7367.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Pseudanabaenales;
OC Pseudanabaenaceae; Pseudanabaena.
OX NCBI_TaxID=82654 {ECO:0000313|EMBL:AFY70853.1, ECO:0000313|Proteomes:UP000010386};
RN [1] {ECO:0000313|EMBL:AFY70853.1, ECO:0000313|Proteomes:UP000010386}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 7367 {ECO:0000313|EMBL:AFY70853.1,
RC ECO:0000313|Proteomes:UP000010386};
RG US DOE Joint Genome Institute;
RA Gugger M., Coursin T., Rippka R., Tandeau De Marsac N., Huntemann M.,
RA Wei C.-L., Han J., Detter J.C., Han C., Tapia R., Davenport K.,
RA Daligault H., Erkkila T., Gu W., Munk A.C.C., Teshima H., Xu Y., Chain P.,
RA Chen A., Krypides N., Mavromatis K., Markowitz V., Szeto E., Ivanova N.,
RA Mikhailova N., Ovchinnikova G., Pagani I., Pati A., Goodwin L., Peters L.,
RA Pitluck S., Woyke T., Kerfeld C.;
RT "Finished chromosome of genome of Pseudanabaena sp. PCC 7367.";
RL Submitted (MAY-2012) 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: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 -!- SIMILARITY: Belongs to the IspH family. {ECO:0000256|HAMAP-
CC Rule:MF_00191}.
CC -!- CAUTION: Lacks conserved residue(s) required for the propagation of
CC feature annotation. {ECO:0000256|HAMAP-Rule:MF_00191}.
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DR EMBL; CP003592; AFY70853.1; -; Genomic_DNA.
DR AlphaFoldDB; K9SKX0; -.
DR STRING; 82654.Pse7367_2597; -.
DR KEGG; pseu:Pse7367_2597; -.
DR PATRIC; fig|82654.3.peg.3032; -.
DR eggNOG; COG0761; Bacteria.
DR HOGENOM; CLU_027486_4_0_3; -.
DR UniPathway; UPA00056; UER00097.
DR UniPathway; UPA00059; UER00105.
DR Proteomes; UP000010386; 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; PTHR31619; 4-HYDROXY-3-METHYLBUT-2-ENYL DIPHOSPHATE REDUCTASE, CHLOROPLASTIC; 1.
DR PANTHER; PTHR31619:SF5; 4-HYDROXY-3-METHYLBUT-2-ENYL DIPHOSPHATE REDUCTASE, CHLOROPLASTIC; 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}; Isoprene biosynthesis {ECO:0000256|HAMAP-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:AFY70853.1};
KW Reference proteome {ECO:0000313|Proteomes:UP000010386}.
FT ACT_SITE 200
FT /note="Proton donor"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT BINDING 78
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT BINDING 108
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT BINDING 170
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT BINDING 198
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT BINDING 263
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT BINDING 301
FT /ligand="[4Fe-4S] cluster"
FT /ligand_id="ChEBI:CHEBI:49883"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT BINDING 330..332
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
FT BINDING 392
FT /ligand="substrate"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00191"
SQ SEQUENCE 414 AA; 46778 MW; 7990F42C9509F4AC CRC64;
MDNTTDAQTP QDINTQAWRR SLQQSPNYFR RGFGHTDAAE ATMKTEYNSD LIQTIREHNY
VYSEGDVTIY LAKSFGFCWG VERAVAMAYE TRSQFPTERI WITNEIIHNP SVNARLKEMA
VLFIPVDEQG NKDFTGIQQG DVVILPAFGA SVQEIQYLEQ VGCTIVDTTC PWVSKVWNRV
EKHKKSDFTS IIHGKYKHEE TIATSSYAKR YLVVLNMAEA EYVADYILNG GDRQEFLAKF
SQATSAGFDP DRDLQHIGIA NQTTMLKGET EDIGKLFERT MMQKYGVDNL NQHFLAYNTI
CDATQERQDA MFEIVEEALD LMVVVGGYNS SNTTHLQEIA IERDLPSYHI DSAERILSAQ
TIEHKPLGKE IIQTHEWLPA GKIRVGITSG ASTPDKVVSD AIERIFAFKD SQGA
//
