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Entry version 123 (02 Jun 2021)
Sequence version 1 (01 Aug 1998)
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Protein

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

Gene

ispH

Organism
Aquifex aeolicus (strain VF5)
Status
Reviewed-Annotation score:

Annotation score:4 out of 5

<p>The annotation score provides a heuristic measure of the annotation content of a UniProtKB entry or proteome. This score <strong>cannot</strong> be used as a measure of the accuracy of the annotation as we cannot define the 'correct annotation' for any given protein.<p><a href='/help/annotation_score' target='_top'>More...</a></p>
-Experimental evidence at protein leveli <p>This indicates the type of evidence that supports the existence of the protein. Note that the 'protein existence' evidence does not give information on the accuracy or correctness of the sequence(s) displayed.<p><a href='/help/protein_existence' target='_top'>More...</a></p>

<p>This section provides any useful information about the protein, mostly biological knowledge.<p><a href='/help/function_section' target='_top'>More...</a></p>Functioni

Catalyzes the conversion of 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate (HMBPP) into a mixture of isopentenyl diphosphate (IPP) and dimethylallyl diphosphate (DMAPP). Acts in the terminal step of the DOXP/MEP pathway for isoprenoid precursor biosynthesis.

UniRule annotation1 Publication

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the catalytic activity of an enzyme, i.e. a chemical reaction that the enzyme catalyzes.<p><a href='/help/catalytic_activity' target='_top'>More...</a></p>Catalytic activityi

<p>This subsection of the 'Function' section provides information relevant to cofactors. A cofactor is any non-protein substance required for a protein to be catalytically active. Some cofactors are inorganic, such as the metal atoms zinc, iron, and copper in various oxidation states. Others, such as most vitamins, are organic.<p><a href='/help/cofactor' target='_top'>More...</a></p>Cofactori

[4Fe-4S] clusterUniRule annotationNote: Was shown to bind 1 [3Fe-4S] cluster per subunit (PubMed:19035630). However, it likely initially contains a [4Fe-4S] cluster which easily degrades into a [3Fe-4S] form in the presence of oxygen (By similarity).UniRule annotationBy similarity1 Publication

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes regulatory mechanisms for enzymes, transporters or microbial transcription factors, and reports the components which regulate (by activation or inhibition) the reaction.<p><a href='/help/activity_regulation' target='_top'>More...</a></p>Activity regulationi

Highly sensitive to dioxygen.1 Publication

<p>This subsection of the 'Function' section describes biophysical and chemical properties, such as maximal absorption, kinetic parameters, pH dependence, redox potentials and temperature dependence.<p><a href='/help/biophysicochemical_properties' target='_top'>More...</a></p>Kineticsi

  1. KM=590 µM for 1-hydroxy-2-methyl-2-(E)-butenyl 4-diphosphate1 Publication

pH dependencei

Optimum pH is 7.0-7.5.1 Publication

Temperature dependencei

Optimum temperature is 60 degrees Celsius.1 Publication

<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">'Function'</a> section describes the metabolic pathway(s) associated with a protein.<p><a href='/help/pathway' target='_top'>More...</a></p>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 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 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
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section indicates at which position the protein binds a given metal ion. The nature of the metal is indicated in the 'Description' field.<p><a href='/help/metal' target='_top'>More...</a></p>Metal bindingi13Iron-sulfur (4Fe-4S)UniRule annotation1 Publication1
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section describes the interaction between a single amino acid and another chemical entity. Priority is given to the annotation of physiological ligands.<p><a href='/help/binding' target='_top'>More...</a></p>Binding sitei42SubstrateUniRule annotation1
Binding sitei74SubstrateUniRule annotation1
Metal bindingi96Iron-sulfur (4Fe-4S)UniRule annotation1 Publication1
Binding sitei124SubstrateUniRule annotation1
<p>This subsection of the <a href="http://www.uniprot.org/help/function%5Fsection">Function</a> section is used for enzymes and indicates the residues directly involved in catalysis.<p><a href='/help/act_site' target='_top'>More...</a></p>Active sitei126Proton donorUniRule annotation1
Binding sitei165SubstrateUniRule annotation1
Metal bindingi193Iron-sulfur (4Fe-4S)UniRule annotation1 Publication1
Binding sitei265SubstrateUniRule annotation1

<p>The <a href="http://www.geneontology.org/">Gene Ontology (GO)</a> project provides a set of hierarchical controlled vocabulary split into 3 categories:<p><a href='/help/gene_ontology' target='_top'>More...</a></p>GO - Molecular functioni

GO - Biological processi

<p>UniProtKB Keywords constitute a <a href="http://www.uniprot.org/keywords">controlled vocabulary</a> with a hierarchical structure. Keywords summarise the content of a UniProtKB entry and facilitate the search for proteins of interest.<p><a href='/help/keywords' target='_top'>More...</a></p>Keywordsi

Molecular functionOxidoreductase
Biological processIsoprene biosynthesis
Ligand4Fe-4S, Iron, Iron-sulfur, Metal-binding

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
AAEO224324:G1G15-1238-MONOMER

BRENDA Comprehensive Enzyme Information System

More...
BRENDAi
1.17.7.4, 396

UniPathway: a resource for the exploration and annotation of metabolic pathways

More...
UniPathwayi
UPA00056;UER00097
UPA00059;UER00105

<p>This section provides information about the protein and gene name(s) and synonym(s) and about the organism that is the source of the protein sequence.<p><a href='/help/names_and_taxonomy_section' target='_top'>More...</a></p>Names & Taxonomyi

<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides an exhaustive list of all names of the protein, from commonly used to obsolete, to allow unambiguous identification of a protein.<p><a href='/help/protein_names' target='_top'>More...</a></p>Protein namesi
Recommended name:
4-hydroxy-3-methylbut-2-enyl diphosphate reductaseUniRule annotation (EC:1.17.7.4UniRule annotation1 Publication)
Short name:
HMBPP reductaseUniRule annotation
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section indicates the name(s) of the gene(s) that code for the protein sequence(s) described in the entry. Four distinct tokens exist: 'Name', 'Synonyms', 'Ordered locus names' and 'ORF names'.<p><a href='/help/gene_name' target='_top'>More...</a></p>Gene namesi
Name:ispHUniRule annotation
Synonyms:lytB
Ordered Locus Names:aq_1739
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section provides information on the name(s) of the organism that is the source of the protein sequence.<p><a href='/help/organism-name' target='_top'>More...</a></p>OrganismiAquifex aeolicus (strain VF5)
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section shows the unique identifier assigned by the NCBI to the source organism of the protein. This is known as the 'taxonomic identifier' or 'taxid'.<p><a href='/help/taxonomic_identifier' target='_top'>More...</a></p>Taxonomic identifieri224324 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section contains the taxonomic hierarchical classification lineage of the source organism. It lists the nodes as they appear top-down in the taxonomic tree, with the more general grouping listed first.<p><a href='/help/taxonomic_lineage' target='_top'>More...</a></p>Taxonomic lineageiBacteriaAquificaeAquificalesAquificaceaeAquifex
<p>This subsection of the <a href="http://www.uniprot.org/help/names%5Fand%5Ftaxonomy%5Fsection">Names and taxonomy</a> section is present for entries that are part of a <a href="http://www.uniprot.org/proteomes">proteome</a>, i.e. of a set of proteins thought to be expressed by organisms whose genomes have been completely sequenced.<p><a href='/help/proteomes_manual' target='_top'>More...</a></p>Proteomesi
  • UP000000798 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes%5Fmanual">proteome</a> can consist of several components.<br></br>The component name refers to the genomic component encoding a set of proteins.<p><a href='/help/proteome_component' target='_top'>More...</a></p> Componenti: Chromosome

<p>This section provides information on the disease(s) and phenotype(s) associated with a protein.<p><a href='/help/pathology_and_biotech_section' target='_top'>More...</a></p>Pathology & Biotechi

Chemistry databases

ChEMBL database of bioactive drug-like small molecules

More...
ChEMBLi
CHEMBL2242741

<p>This section describes post-translational modifications (PTMs) and/or processing events.<p><a href='/help/ptm_processing_section' target='_top'>More...</a></p>PTM / Processingi

Molecule processing

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'PTM / Processing' section describes the extent of a polypeptide chain in the mature protein following processing or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001287661 – 2894-hydroxy-3-methylbut-2-enyl diphosphate reductaseAdd BLAST289

<p>This section provides information on the quaternary structure of a protein and on interaction(s) with other proteins or protein complexes.<p><a href='/help/interaction_section' target='_top'>More...</a></p>Interactioni

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
224324.aq_1739

Chemistry databases

BindingDB database of measured binding affinities

More...
BindingDBi
O67625

<p>This section provides information on the tertiary and secondary structure of a protein.<p><a href='/help/structure_section' target='_top'>More...</a></p>Structurei

Secondary structure

1289
Legend: HelixTurnBeta strandPDB Structure known for this area
Show more details

3D structure databases

SWISS-MODEL Repository - a database of annotated 3D protein structure models

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SMRi
O67625

Database of comparative protein structure models

More...
ModBasei
Search...

Protein Data Bank in Europe - Knowledge Base

More...
PDBe-KBi
Search...

Miscellaneous databases

Relative evolutionary importance of amino acids within a protein sequence

More...
EvolutionaryTracei
O67625

<p>This section provides information on sequence similarities with other proteins and the domain(s) present in a protein.<p><a href='/help/family_and_domains_section' target='_top'>More...</a></p>Family & Domainsi

Region

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the 'Family and Domains' section describes a region of interest that cannot be described in other subsections.<p><a href='/help/region' target='_top'>More...</a></p>Regioni221 – 223Substrate bindingUniRule annotation3

<p>This subsection of the 'Family and domains' section provides information about the sequence similarity with other proteins.<p><a href='/help/sequence_similarities' target='_top'>More...</a></p>Sequence similaritiesi

Belongs to the IspH family.UniRule annotation

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
COG0761, Bacteria

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
CLU_027486_0_1_0

InParanoid: Eukaryotic Ortholog Groups

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InParanoidi
O67625

Identification of Orthologs from Complete Genome Data

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OMAi
HNKYVVD

Database of Orthologous Groups

More...
OrthoDBi
1235756at2

Family and domain databases

Conserved Domains Database

More...
CDDi
cd13944, lytB_ispH, 1 hit

HAMAP database of protein families

More...
HAMAPi
MF_00191, IspH, 1 hit

Integrated resource of protein families, domains and functional sites

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InterProi
View protein in InterPro
IPR003451, LytB/IspH

The PANTHER Classification System

More...
PANTHERi
PTHR30426, PTHR30426, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF02401, LYTB, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR00216, ispH_lytB, 1 hit

<p>This section displays by default the canonical protein sequence and upon request all isoforms described in the entry. It also includes information pertinent to the sequence(s), including <a href="http://www.uniprot.org/help/sequence%5Flength">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>. The information is filed in different subsections. The current subsections and their content are listed below:<p><a href='/help/sequences_section' target='_top'>More...</a></p>Sequencei

<p>This subsection of the <a href="http://www.uniprot.org/help/sequences%5Fsection">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> displayed by default in the entry is complete or not.<p><a href='/help/sequence_status' target='_top'>More...</a></p>Sequence statusi: Complete.

O67625-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MVDIIIAEHA GFCFGVKRAV KLAEESLKES QGKVYTLGPI IHNPQEVNRL
60 70 80 90 100
KNLGVFPSQG EEFKEGDTVI IRSHGIPPEK EEALRKKGLK VIDATCPYVK
110 120 130 140 150
AVHEAVCQLT REGYFVVLVG EKNHPEVIGT LGYLRACNGK GIVVETLEDI
160 170 180 190 200
GEALKHERVG IVAQTTQNEE FFKEVVGEIA LWVKEVKVIN TICNATSLRQ
210 220 230 240 250
ESVKKLAPEV DVMIIIGGKN SGNTRRLYYI SKELNPNTYH IETAEELQPE
260 270 280
WFRGVKRVGI SAGASTPDWI IEQVKSRIQE ICEGQLVSS
Length:289
Mass (Da):32,104
Last modified:August 1, 1998 - v1
<p>The checksum is a form of redundancy check that is calculated from the sequence. It is useful for tracking sequence updates.</p> <p>It should be noted that while, in theory, two different sequences could have the same checksum value, the likelihood that this would happen is extremely low.</p> <p>However UniProtKB may contain entries with identical sequences in case of multiple genes (paralogs).</p> <p>The checksum is computed as the sequence 64-bit Cyclic Redundancy Check value (CRC64) using the generator polynomial: x<sup>64</sup> + x<sup>4</sup> + x<sup>3</sup> + x + 1. The algorithm is described in the ISO 3309 standard. </p> <p class="publication">Press W.H., Flannery B.P., Teukolsky S.A. and Vetterling W.T.<br /> <strong>Cyclic redundancy and other checksums</strong><br /> <a href="http://www.nrbook.com/b/bookcpdf.php">Numerical recipes in C 2nd ed., pp896-902, Cambridge University Press (1993)</a>)</p> Checksum:iA9D910C41727E9F4
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

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EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AE000657 Genomic DNA Translation: AAC07596.1

Protein sequence database of the Protein Information Resource

More...
PIRi
G70449

NCBI Reference Sequences

More...
RefSeqi
NP_214191.1, NC_000918.1
WP_010881128.1, NC_000918.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAC07596; AAC07596; aq_1739

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
aae:aq_1739

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|224324.8.peg.1338

<p>This section provides links to proteins that are similar to the protein sequence(s) described in this entry at different levels of sequence identity thresholds (100%, 90% and 50%) based on their membership in UniProt Reference Clusters (<a href="http://www.uniprot.org/help/uniref">UniRef</a>).<p><a href='/help/similar_proteins_section' target='_top'>More...</a></p>Similar proteinsi

<p>This section is used to point to information related to entries and found in data collections other than UniProtKB.<p><a href='/help/cross_references_section' target='_top'>More...</a></p>Cross-referencesi

Sequence databases

Select the link destinations:
EMBLi
GenBanki
DDBJi
Links Updated
AE000657 Genomic DNA Translation: AAC07596.1
PIRiG70449
RefSeqiNP_214191.1, NC_000918.1
WP_010881128.1, NC_000918.1

3D structure databases

Select the link destinations:

Protein Data Bank Europe

More...
PDBei

Protein Data Bank RCSB

More...
RCSB PDBi

Protein Data Bank Japan

More...
PDBji
Links Updated
PDB entryMethodResolution (Å)ChainPositionsPDBsum
3DNFX-ray1.65A/B1-289[»]
SMRiO67625
ModBaseiSearch...
PDBe-KBiSearch...

Protein-protein interaction databases

STRINGi224324.aq_1739

Chemistry databases

BindingDBiO67625
ChEMBLiCHEMBL2242741

Genome annotation databases

EnsemblBacteriaiAAC07596; AAC07596; aq_1739
KEGGiaae:aq_1739
PATRICifig|224324.8.peg.1338

Phylogenomic databases

eggNOGiCOG0761, Bacteria
HOGENOMiCLU_027486_0_1_0
InParanoidiO67625
OMAiHNKYVVD
OrthoDBi1235756at2

Enzyme and pathway databases

UniPathwayiUPA00056;UER00097
UPA00059;UER00105
BioCyciAAEO224324:G1G15-1238-MONOMER
BRENDAi1.17.7.4, 396

Miscellaneous databases

EvolutionaryTraceiO67625

Family and domain databases

CDDicd13944, lytB_ispH, 1 hit
HAMAPiMF_00191, IspH, 1 hit
InterProiView protein in InterPro
IPR003451, LytB/IspH
PANTHERiPTHR30426, PTHR30426, 1 hit
PfamiView protein in Pfam
PF02401, LYTB, 1 hit
TIGRFAMsiTIGR00216, ispH_lytB, 1 hit

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<p>This section provides general information on the entry.<p><a href='/help/entry_information_section' target='_top'>More...</a></p>Entry informationi

<p>This subsection of the 'Entry information' section provides a mnemonic identifier for a UniProtKB entry, but it is not a stable identifier. Each reviewed entry is assigned a unique entry name upon integration into UniProtKB/Swiss-Prot.<p><a href='/help/entry_name' target='_top'>More...</a></p>Entry nameiISPH_AQUAE
<p>This subsection of the 'Entry information' section provides one or more accession number(s). These are stable identifiers and should be used to cite UniProtKB entries. Upon integration into UniProtKB, each entry is assigned a unique accession number, which is called 'Primary (citable) accession number'.<p><a href='/help/accession_numbers' target='_top'>More...</a></p>AccessioniPrimary (citable) accession number: O67625
<p>This subsection of the 'Entry information' section shows the date of integration of the entry into UniProtKB, the date of the last sequence update and the date of the last annotation modification ('Last modified'). The version number for both the entry and the <a href="http://www.uniprot.org/help/canonical%5Fand%5Fisoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: December 1, 2000
Last sequence update: August 1, 1998
Last modified: June 2, 2021
This is version 123 of the entry and version 1 of the sequence. See complete history.
<p>This subsection of the 'Entry information' section indicates whether the entry has been manually annotated and reviewed by UniProtKB curators or not, in other words, if the entry belongs to the Swiss-Prot section of UniProtKB (<strong>reviewed</strong>) or to the computer-annotated TrEMBL section (<strong>unreviewed</strong>).<p><a href='/help/entry_status' target='_top'>More...</a></p>Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programProkaryotic Protein Annotation Program

<p>This section contains any relevant information that doesn't fit in any other defined sections<p><a href='/help/miscellaneous_section' target='_top'>More...</a></p>Miscellaneousi

Keywords - Technical termi

3D-structure, Reference proteome

Documents

  1. PATHWAY comments
    Index of metabolic and biosynthesis pathways
  2. PDB cross-references
    Index of Protein Data Bank (PDB) cross-references
  3. SIMILARITY comments
    Index of protein domains and families
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