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Protein

4-hydroxy-3-methylbut-2-enyl diphosphate reductase

Gene

ispH

Organism
Streptomyces avermitilis (strain ATCC 31267 / DSM 46492 / JCM 5070 / NBRC 14893 / NCIMB 12804 / NRRL 8165 / MA-4680)
Status
Reviewed-Annotation score: Annotation score: 3 out of 5-Protein inferred from homologyi

Functioni

Converts 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate into isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP).UniRule annotation

Catalytic activityi

Isopentenyl diphosphate + 2 oxidized ferredoxin [iron-sulfur] cluster + H2O = (E)-4-hydroxy-3-methylbut-2-en-1-yl diphosphate + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+.UniRule annotation
Dimethylallyl diphosphate + 2 oxidized ferredoxin [iron-sulfur] cluster + H2O = (E)-4-hydroxy-3-methylbut-2-en-1-yl diphosphate + 2 reduced ferredoxin [iron-sulfur] cluster + 2 H+.UniRule annotation

Cofactori

[3Fe-4S] clusterUniRule annotationNote: Binds 1 [3Fe-4S] cluster per subunit.UniRule annotation

Pathwayi: dimethylallyl diphosphate biosynthesis

This protein is involved in step 1 of the subpathway that synthesizes dimethylallyl diphosphate from (2E)-4-hydroxy-3-methylbutenyl diphosphate.UniRule annotation
Proteins known to be involved in this subpathway in this organism are:
  1. 4-hydroxy-3-methylbut-2-enyl diphosphate reductase (ispH)
This subpathway is part of the pathway dimethylallyl diphosphate biosynthesis, which is itself part of Isoprenoid biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes dimethylallyl diphosphate from (2E)-4-hydroxy-3-methylbutenyl diphosphate, the pathway dimethylallyl diphosphate biosynthesis and in Isoprenoid biosynthesis.

Pathwayi: isopentenyl diphosphate biosynthesis via DXP pathway

This protein is involved in step 6 of the subpathway that synthesizes isopentenyl diphosphate from 1-deoxy-D-xylulose 5-phosphate.UniRule annotation
Proteins known to be involved in the 6 steps of the subpathway in this organism are:
  1. 1-deoxy-D-xylulose 5-phosphate reductoisomerase (dxr)
  2. 2-C-methyl-D-erythritol 4-phosphate cytidylyltransferase (ispD)
  3. 4-diphosphocytidyl-2-C-methyl-D-erythritol kinase (ispE)
  4. 2-C-methyl-D-erythritol 2,4-cyclodiphosphate synthase (ispF)
  5. 4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase (flavodoxin) 1 (ispG1), 4-hydroxy-3-methylbut-2-en-1-yl diphosphate synthase (flavodoxin) 2 (ispG2)
  6. 4-hydroxy-3-methylbut-2-enyl diphosphate reductase (ispH)
This subpathway is part of the pathway isopentenyl diphosphate biosynthesis via DXP pathway, which is itself part of Isoprenoid biosynthesis.
View all proteins of this organism that are known to be involved in the subpathway that synthesizes isopentenyl diphosphate from 1-deoxy-D-xylulose 5-phosphate, the pathway isopentenyl diphosphate biosynthesis via DXP pathway and in Isoprenoid biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Metal bindingi21Iron-sulfur (3Fe-4S)UniRule annotation1
Binding sitei50SubstrateUniRule annotation1
Binding sitei83SubstrateUniRule annotation1
Metal bindingi105Iron-sulfur (3Fe-4S)UniRule annotation1
Binding sitei133SubstrateUniRule annotation1
Binding sitei173SubstrateUniRule annotation1
Metal bindingi203Iron-sulfur (3Fe-4S)UniRule annotation1
Binding sitei276SubstrateUniRule annotation1

GO - Molecular functioni

GO - Biological processi

Complete GO annotation...

Keywords - Molecular functioni

Oxidoreductase

Keywords - Biological processi

Isoprene biosynthesis

Keywords - Ligandi

3Fe-4S, Iron, Iron-sulfur, Metal-binding, NADP

Enzyme and pathway databases

UniPathwayiUPA00056; UER00097.
UPA00059; UER00105.

Names & Taxonomyi

Protein namesi
Recommended name:
4-hydroxy-3-methylbut-2-enyl diphosphate reductaseUniRule annotation (EC:1.17.7.4UniRule annotation)
Gene namesi
Name:ispHUniRule annotation
Ordered Locus Names:SAV_3210
OrganismiStreptomyces avermitilis (strain ATCC 31267 / DSM 46492 / JCM 5070 / NBRC 14893 / NCIMB 12804 / NRRL 8165 / MA-4680)
Taxonomic identifieri227882 [NCBI]
Taxonomic lineageiBacteriaActinobacteriaStreptomycetalesStreptomycetaceaeStreptomyces
Proteomesi
  • UP000000428 Componenti: Chromosome

PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
ChainiPRO_00001288741 – 3384-hydroxy-3-methylbut-2-enyl diphosphate reductaseAdd BLAST338

Interactioni

Protein-protein interaction databases

STRINGi227882.SAV_3210.

Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
Regioni231 – 233Substrate bindingUniRule annotation3

Sequence similaritiesi

Belongs to the IspH family.UniRule annotation

Phylogenomic databases

eggNOGiENOG4105C48. Bacteria.
COG0761. LUCA.
HOGENOMiHOG000220192.
KOiK03527.
OMAiHTIDATC.
OrthoDBiPOG091H038O.

Family and domain databases

CDDicd13944. lytB_ispH. 1 hit.
HAMAPiMF_00191. IspH. 1 hit.
InterProiIPR003451. LytB/IspH.
[Graphical view]
PfamiPF02401. LYTB. 1 hit.
[Graphical view]
TIGRFAMsiTIGR00216. ispH_lytB. 1 hit.

Sequencei

Sequence statusi: Complete.

Q82IE8-1 [UniParc]FASTAAdd to basket

« Hide

        10         20         30         40         50
MVSMTASSGR RVLLAAPRGY CAGVDRAVIA VEKALEQYGA PIYVRHEIVH
60 70 80 90 100
NKYVVQTLER KGAIFVERTA EVPEGAIVMF SAHGVAPVVH EEAARGKLAT
110 120 130 140 150
IDATCPLVTK VHKEAVRFAN EDFDILLIGH EGHEEVIGTS GEAPEHITLV
160 170 180 190 200
DGPGDVAKVE VRDPSKVVWL SQTTLSVDET METVDALKEK FPQLISPPSD
210 220 230 240 250
DICYATQNRQ LAVKQMGEEA DLVIVVGSRN SSNSVRLVEV AKLAGARDAY
260 270 280 290 300
LVDFADEIDE AWLEGVSTVG VTSGASVPEI LVEQVLEWLS QRGFEDVEIV
310 320 330
KAAEESITFS LPKELRRDLR AEAAALVEQR TGNGPSAE
Length:338
Mass (Da):36,591
Last modified:June 1, 2003 - v1
Checksum:i808272480F31C313
GO

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000030 Genomic DNA. Translation: BAC70921.1.
RefSeqiWP_010984640.1. NZ_JZJK01000090.1.

Genome annotation databases

EnsemblBacteriaiBAC70921; BAC70921; SAVERM_3210.
KEGGisma:SAV_3210.
PATRICi23720047. VBIStrAve112782_3430.

Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
BA000030 Genomic DNA. Translation: BAC70921.1.
RefSeqiWP_010984640.1. NZ_JZJK01000090.1.

3D structure databases

ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi227882.SAV_3210.

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiBAC70921; BAC70921; SAVERM_3210.
KEGGisma:SAV_3210.
PATRICi23720047. VBIStrAve112782_3430.

Phylogenomic databases

eggNOGiENOG4105C48. Bacteria.
COG0761. LUCA.
HOGENOMiHOG000220192.
KOiK03527.
OMAiHTIDATC.
OrthoDBiPOG091H038O.

Enzyme and pathway databases

UniPathwayiUPA00056; UER00097.
UPA00059; UER00105.

Family and domain databases

CDDicd13944. lytB_ispH. 1 hit.
HAMAPiMF_00191. IspH. 1 hit.
InterProiIPR003451. LytB/IspH.
[Graphical view]
PfamiPF02401. LYTB. 1 hit.
[Graphical view]
TIGRFAMsiTIGR00216. ispH_lytB. 1 hit.
ProtoNetiSearch...

Entry informationi

Entry nameiISPH_STRAW
AccessioniPrimary (citable) accession number: Q82IE8
Entry historyi
Integrated into UniProtKB/Swiss-Prot: July 19, 2004
Last sequence update: June 1, 2003
Last modified: November 2, 2016
This is version 81 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. SIMILARITY comments
    Index of protein domains and families

Similar proteinsi

Links to similar proteins from the UniProt Reference Clusters (UniRef) at 100%, 90% and 50% sequence identity:
100%UniRef100 combines identical sequences and sub-fragments with 11 or more residues from any organism into one UniRef entry.
90%UniRef90 is built by clustering UniRef100 sequences that have at least 90% sequence identity to, and 80% overlap with, the longest sequence (a.k.a seed sequence).
50%UniRef50 is built by clustering UniRef90 seed sequences that have at least 50% sequence identity to, and 80% overlap with, the longest sequence in the cluster.