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Protein

Enterobactin synthase component E

Gene

entE

Organism
Escherichia coli O157:H7
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>
-Protein inferred from homologyi <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

Involved in the biosynthesis of the siderophore enterobactin (enterochelin), which is a macrocyclic trimeric lactone of N-(2,3-dihydroxybenzoyl)-serine. The serine trilactone serves as a scaffolding for the three catechol functionalities that provide hexadentate coordination for the tightly ligated iron2+ atoms. EntE proccesses via a two-step adenylation-ligation reaction (bi-uni-uni-bi ping-pong mechanism). First, it catalyzes the activation of the carboxylate group of 2,3-dihydroxy-benzoate (DHB), via a reversible ATP-dependent pyrophosphate exchange reactions to yield the acyladenylate intermediate 2,3-dihydroxybenzoyl-AMP. It can also transfer AMP to salicylate, 2,4-dihydroxybenzoate, gentisate and 2,3,4-trihydroxybenzoate. In the second step, DHB is transferred from 2,3-dihydroxybenzoyl-AMP onto the phosphopantetheinylated EntB (holo-EntB) to form DHB-holo-EntB. Then this product will serve in the formation of the amide bond between 2,3-dihydroxybenzoate (DHB) and L-serine.By similarity

<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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 <a href="http://www.uniprot.org/help/function_section">'Function'</a> section describes the metabolic pathway(s) associated with a protein.<p><a href='/help/pathway' target='_top'>More...</a></p>Pathwayi: enterobactin biosynthesis

This protein is involved in the pathway enterobactin biosynthesis, which is part of Siderophore biosynthesis.By similarity
View all proteins of this organism that are known to be involved in the pathway enterobactin biosynthesis and in Siderophore biosynthesis.

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Function’ 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 sitei235SubstrateBy similarity1
Binding sitei240SubstrateBy similarity1
Binding sitei309Substrate; via amide nitrogenBy similarity1
Binding sitei331Substrate; via carbonyl oxygenBy similarity1
Binding sitei335Substrate; via amide nitrogenBy similarity1
Binding sitei415SubstrateBy similarity1
Binding sitei432SubstrateBy similarity1
Binding sitei441SubstrateBy similarity1

<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 functionAcyltransferase, Ligase, Transferase
Biological processEnterobactin biosynthesis
LigandATP-binding, Nucleotide-binding

Enzyme and pathway databases

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

More...
UniPathwayi
UPA00017

<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_and_taxonomy_section">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:
Enterobactin synthase component EBy similarity (EC:6.3.2.14By similarity)
Alternative name(s):
2,3-dihydroxybenzoate-AMP liaseBy similarity
Short name:
DHB-AMP ligaseBy similarity
2,3-dihydroxybenzoate-AMP synthaseBy similarity (EC:2.7.7.58By similarity)
Dihydroxybenzoic acid-activating enzymeBy similarity
Enterochelin synthase EBy similarity
S-dihydroxybenzoyltransferaseBy similarity (EC:2.5.1.-By similarity)
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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:entEBy similarity
Ordered Locus Names:Z0736, ECs0633
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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>OrganismiEscherichia coli O157:H7
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 identifieri83334 [NCBI]
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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 lineageiBacteriaProteobacteriaGammaproteobacteriaEnterobacteralesEnterobacteriaceaeEscherichia
<p>This subsection of the <a href="http://www.uniprot.org/help/names_and_taxonomy_section">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
  • UP000000558 <p>A UniProt <a href="http://www.uniprot.org/manual/proteomes_manual">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
  • UP000002519 Componenti: Chromosome

<p>This section provides information on the location and the topology of the mature protein in the cell.<p><a href='/help/subcellular_location_section' target='_top'>More...</a></p>Subcellular locationi

GO - Cellular componenti

Keywords - Cellular componenti

Membrane

<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.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001930761 – 536Enterobactin synthase component EAdd BLAST536

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
Q8XBV3

<p>This section provides information on the expression of a gene at the mRNA or protein level in cells or in tissues of multicellular organisms.<p><a href='/help/expression_section' target='_top'>More...</a></p>Expressioni

<p>This subsection of the ‘Expression’ section reports the experimentally proven effects of inducers and repressors (usually chemical compounds or environmental factors) on the level of protein (or mRNA) expression (up-regulation, down-regulation, constitutive expression).<p><a href='/help/induction' target='_top'>More...</a></p>Inductioni

Under conditions of iron deficiency and by the fur protein.By similarity

<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

<p>This subsection of the <a href="http://www.uniprot.org/help/interaction_section">'Interaction'</a> section provides information about the protein quaternary structure and interaction(s) with other proteins or protein complexes (with the exception of physiological receptor-ligand interactions which are annotated in the <a href="http://www.uniprot.org/help/function_section">'Function'</a> section).<p><a href='/help/subunit_structure' target='_top'>More...</a></p>Subunit structurei

Proteins EntB, EntD, EntE, and EntF form a multienzyme complex called enterobactin synthase. Monomer. EntA and EntE interact together.By similarity

Protein-protein interaction databases

STRING: functional protein association networks

More...
STRINGi
155864.Z0736

<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

3D structure databases

Protein Model Portal of the PSI-Nature Structural Biology Knowledgebase

More...
ProteinModelPortali
Q8XBV3

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

More...
SMRi
Q8XBV3

Database of comparative protein structure models

More...
ModBasei
Search...

MobiDB: a database of protein disorder and mobility annotations

More...
MobiDBi
Search...

<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>Regioni438 – 439Phosphopantetheine bindingBy similarity2

<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 ATP-dependent AMP-binding enzyme family. EntE subfamily.By similarity

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4108IQC Bacteria
COG1021 LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000230011

KEGG Orthology (KO)

More...
KOi
K02363

Family and domain databases

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR025110 AMP-bd_C
IPR020845 AMP-binding_CS
IPR000873 AMP-dep_Synth/Lig
IPR011963 DHB_AMP_lig

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF00501 AMP-binding, 1 hit
PF13193 AMP-binding_C, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR02275 DHB_AMP_lig, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00455 AMP_BINDING, 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_length">length</a> and <a href="http://www.uniprot.org/help/sequences">molecular weight</a>.<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_section">Sequence</a> section indicates if the <a href="http://www.uniprot.org/help/canonical_and_isoforms">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.

Q8XBV3-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MSIPFTRWPE EFARRYREKG YWQDLPLTDI LTRHAASDSI AVIDGERQLS
60 70 80 90 100
YRELNQAADN LACSLRRQGI KPGETALVQL GNVAELYITF FALLKLGVAP
110 120 130 140 150
VLALFSHQRS ELNAYASQIE PALLIADRQH ALFSGDDFLN TFVAEHSSIR
160 170 180 190 200
VVQLLNDSGE HNLQDAINHP ADGFTATPSP ADEVVYFQLS GGTTGTPKLI
210 220 230 240 250
PRTHNDYYYS VRRSVEICQF TQQTRYLCAI PAAHNYAMSS PGSLGVFLAG
260 270 280 290 300
GTVVLAADPS ATLCFPLIEK HQINVTALVP PAVSLWLQAL TEGESRAQLA
310 320 330 340 350
SLKLLQVGGA RLSATLAARI PAEIGCQLQQ VFGMAEGLVN YTRLDDSAEK
360 370 380 390 400
IIHTQGYPMC PDDEVWVADA EGNPLPQGEV GRLMTRGPYT FRGYYKSPQH
410 420 430 440 450
NASAFDANGF YCSGDLISID PEGYITVQGR EKDQINRGGE KIAAEEIENL
460 470 480 490 500
LLRHPAVIYA ALVSMEDELM GEKSCAYLVV KEPLRAVQVR RFLREQGIAE
510 520 530
FKLPDRVECV DSLPLTAVGK VDKKQLRQWL ASRASA
Length:536
Mass (Da):59,040
Last modified:March 1, 2002 - 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:iABC8E0B3209940A5
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

More...
GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
AE005174 Genomic DNA Translation: AAG54929.1
BA000007 Genomic DNA Translation: BAB34056.1

Protein sequence database of the Protein Information Resource

More...
PIRi
A99708
E85558

NCBI Reference Sequences

More...
RefSeqi
NP_308660.1, NC_002695.1
WP_000026781.1, NZ_NOKN01000002.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAG54929; AAG54929; Z0736
BAB34056; BAB34056; BAB34056

Database of genes from NCBI RefSeq genomes

More...
GeneIDi
916992

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ece:Z0736
ecs:ECs0633

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|386585.9.peg.743

<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
AE005174 Genomic DNA Translation: AAG54929.1
BA000007 Genomic DNA Translation: BAB34056.1
PIRiA99708
E85558
RefSeqiNP_308660.1, NC_002695.1
WP_000026781.1, NZ_NOKN01000002.1

3D structure databases

ProteinModelPortaliQ8XBV3
SMRiQ8XBV3
ModBaseiSearch...
MobiDBiSearch...

Protein-protein interaction databases

STRINGi155864.Z0736

Proteomic databases

PRIDEiQ8XBV3

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiAAG54929; AAG54929; Z0736
BAB34056; BAB34056; BAB34056
GeneIDi916992
KEGGiece:Z0736
ecs:ECs0633
PATRICifig|386585.9.peg.743

Phylogenomic databases

eggNOGiENOG4108IQC Bacteria
COG1021 LUCA
HOGENOMiHOG000230011
KOiK02363

Enzyme and pathway databases

UniPathwayi
UPA00017

Family and domain databases

InterProiView protein in InterPro
IPR025110 AMP-bd_C
IPR020845 AMP-binding_CS
IPR000873 AMP-dep_Synth/Lig
IPR011963 DHB_AMP_lig
PfamiView protein in Pfam
PF00501 AMP-binding, 1 hit
PF13193 AMP-binding_C, 1 hit
TIGRFAMsiTIGR02275 DHB_AMP_lig, 1 hit
PROSITEiView protein in PROSITE
PS00455 AMP_BINDING, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
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 nameiENTE_ECO57
<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: Q8XBV3
<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_and_isoforms">canonical sequence</a> are also displayed.<p><a href='/help/entry_history' target='_top'>More...</a></p>Entry historyiIntegrated into UniProtKB/Swiss-Prot: July 26, 2002
Last sequence update: March 1, 2002
Last modified: December 5, 2018
This is version 99 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

Complete proteome, Reference proteome

Documents

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