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Entry version 86 (05 Dec 2018)
Sequence version 1 (09 Jan 2007)
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Protein

Isoleucine--tRNA ligase

Gene

ileS

Organism
Bacillus thuringiensis (strain Al Hakam)
Status
Reviewed-Annotation score:

Annotation score:3 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

Catalyzes the attachment of isoleucine to tRNA(Ile). As IleRS can inadvertently accommodate and process structurally similar amino acids such as valine, to avoid such errors it has two additional distinct tRNA(Ile)-dependent editing activities. One activity is designated as 'pretransfer' editing and involves the hydrolysis of activated Val-AMP. The other activity is designated 'posttransfer' editing and involves deacylation of mischarged Val-tRNA(Ile).UniRule annotation

<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 ‘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

Zn2+UniRule annotation

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 sitei593ATPUniRule 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 functionAminoacyl-tRNA synthetase, Ligase
Biological processProtein biosynthesis
LigandATP-binding, Metal-binding, Nucleotide-binding, Zinc

<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:
Isoleucine--tRNA ligaseUniRule annotation (EC:6.1.1.5UniRule annotation)
Alternative name(s):
Isoleucyl-tRNA synthetaseUniRule annotation
Short name:
IleRSUniRule annotation
<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:ileSUniRule annotation
Ordered Locus Names:BALH_1940
<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>OrganismiBacillus thuringiensis (strain Al Hakam)
<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 identifieri412694 [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 lineageiBacteriaFirmicutesBacilliBacillalesBacillaceaeBacillusBacillus cereus group
<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
  • UP000000761 <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

<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

Cytoplasm

<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_10000221471 – 1033Isoleucine--tRNA ligaseAdd BLAST1033

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
A0RDG3

<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

Monomer.UniRule annotation

<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
A0RDG3

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

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SMRi
A0RDG3

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

Motif

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the ‘Family and Domains’ section describes a short (usually not more than 20 amino acids) conserved sequence motif of biological significance.<p><a href='/help/motif' target='_top'>More...</a></p>Motifi47 – 57"HIGH" regionAdd BLAST11
Motifi590 – 594"KMSKS" region5

<p>This subsection of the ‘Family and domains’ section provides general information on the biological role of a domain. The term ‘domain’ is intended here in its wide acceptation, it may be a structural domain, a transmembrane region or a functional domain. Several domains are described in this subsection.<p><a href='/help/domain_cc' target='_top'>More...</a></p>Domaini

IleRS has two distinct active sites: one for aminoacylation and one for editing. The misactivated valine is translocated from the active site to the editing site, which sterically excludes the correctly activated isoleucine. The single editing site contains two valyl binding pockets, one specific for each substrate (Val-AMP or Val-tRNA(Ile)).UniRule annotation

<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 class-I aminoacyl-tRNA synthetase family. IleS type 2 subfamily.UniRule annotation

Phylogenomic databases

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000246403

KEGG Orthology (KO)

More...
KOi
K01870

Identification of Orthologs from Complete Genome Data

More...
OMAi
GYRVMPY

Family and domain databases

Conserved Domains Database

More...
CDDi
cd07961 Anticodon_Ia_Ile_ABEc, 1 hit

Gene3D Structural and Functional Annotation of Protein Families

More...
Gene3Di
3.40.50.620, 1 hit
3.90.740.10, 1 hit

HAMAP database of protein families

More...
HAMAPi
MF_02003 Ile_tRNA_synth_type2, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR001412 aa-tRNA-synth_I_CS
IPR002300 aa-tRNA-synth_Ia
IPR033709 Anticodon_Ile_ABEc
IPR002301 Ile-tRNA-ligase
IPR023586 Ile-tRNA-ligase_type2
IPR013155 M/V/L/I-tRNA-synth_anticd-bd
IPR014729 Rossmann-like_a/b/a_fold
IPR009080 tRNAsynth_Ia_anticodon-bd
IPR009008 Val/Leu/Ile-tRNA-synth_edit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF08264 Anticodon_1, 1 hit
PF00133 tRNA-synt_1, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00984 TRNASYNTHILE

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF47323 SSF47323, 2 hits
SSF50677 SSF50677, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR00392 ileS, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS00178 AA_TRNA_LIGASE_I, 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.

A0RDG3-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKKVDVKESA VGRETRIRKQ WNEQSIFEQS IQNREGAQSF VFYEGPPTAN
60 70 80 90 100
GLPHVGHALG RTIKDVVARY KTMVGYKVLR KAGWDTHGLP VELGVEKQLG
110 120 130 140 150
ISGKHEIEEY GIEPFIQKCK ESVFTYEKQW REFTESIGYW VDMDDPYVTL
160 170 180 190 200
ENPYIESVWH ILGTIHEKGL LYKGHRVSPY CPSCQTSLSS HEVAQGYKTV
210 220 230 240 250
KDLSATVKFE VKDSENEYFL GWTTTPWTLP ANVALAVHPN MEYVKAKQEG
260 270 280 290 300
HVYIVAKERV QDVLKEDYEV LSVHKGEELV NTSYMPPFPM KEVTNGYHVI
310 320 330 340 350
AADFVTADSG TGLVHIAPAY GEDDYRVVQS EGLSFLHVVD EKGEYTEAVP
360 370 380 390 400
FLKGKFVKDC DVDIVRYLAK EGLLYHKEKY EHSYPHCWRC DSPLLYYAGE
410 420 430 440 450
SWLIRTTAIK DTFLQNNDSV TWYPDHMKHG RFGKFLENMV DWNISRNRYW
460 470 480 490 500
GTPLNVWECE SCDHQFAPKS IADLRKHSTK ETPEDLELHK PYVDEVQVCC
510 520 530 540 550
EKCGGTMTRT PEVIDVWFDS GSMPFAQYHY PFENKELFEE QFPADVIAEG
560 570 580 590 600
IDQTRGWFYS LLAVSALYTG KAPYKRVLSL GHVLDEEGQK MSKSKGNALD
610 620 630 640 650
PVDLVEKFGA DALRWALLVD SAPWNAKRFS ERTVLEAKSK FVDTLINVYS
660 670 680 690 700
FYVLYANLDE YNPHETYDVK RTKLDEWVLS RLHSTTKKVR TALDDYQFTN
710 720 730 740 750
AAREIAALVD EVSNWYVRRS RNRFWESGMN AEKAAAYETL HEVLVTISKL
760 770 780 790 800
IAPFTPFVAE DIHVNLTGNS VHLEDYPVVN ESLLQPKLEA EMNAVLQVVE
810 820 830 840 850
LGRSNRNQHS LKVKQPLAEL VLLEHNENDM DWESYRDIVM DELNVKTFHV
860 870 880 890 900
ELDETKYTSY QLKLNFKKAG PKFGKNVNAV NGWLKQLSQA EVQNFVSTER
910 920 930 940 950
AVYEVASGEE VVVTAEDVMV EKVAKSGFSN TTNGQYTVML DTNVTEELLQ
960 970 980 990 1000
EGVAREFIRA VQEYRKQLNL PVNLRVDVIL DTEEELQQTL TNHKELLKEN
1010 1020 1030
LLVKQFTFGH LTNEDDELSL GETKVRIKLS SAN
Length:1,033
Mass (Da):118,463
Last modified:January 9, 2007 - 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:iD64CDD90BABD2956
GO

Sequence databases

Select the link destinations:

EMBL nucleotide sequence database

More...
EMBLi

GenBank nucleotide sequence database

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GenBanki

DNA Data Bank of Japan; a nucleotide sequence database

More...
DDBJi
Links Updated
CP000485 Genomic DNA Translation: ABK85256.1

NCBI Reference Sequences

More...
RefSeqi
WP_000754935.1, NC_008600.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
ABK85256; ABK85256; BALH_1940

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
btl:BALH_1940

<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
CP000485 Genomic DNA Translation: ABK85256.1
RefSeqiWP_000754935.1, NC_008600.1

3D structure databases

ProteinModelPortaliA0RDG3
SMRiA0RDG3
ModBaseiSearch...
MobiDBiSearch...

Proteomic databases

PRIDEiA0RDG3

Protocols and materials databases

Structural Biology KnowledgebaseSearch...

Genome annotation databases

EnsemblBacteriaiABK85256; ABK85256; BALH_1940
KEGGibtl:BALH_1940

Phylogenomic databases

HOGENOMiHOG000246403
KOiK01870
OMAiGYRVMPY

Family and domain databases

CDDicd07961 Anticodon_Ia_Ile_ABEc, 1 hit
Gene3Di3.40.50.620, 1 hit
3.90.740.10, 1 hit
HAMAPiMF_02003 Ile_tRNA_synth_type2, 1 hit
InterProiView protein in InterPro
IPR001412 aa-tRNA-synth_I_CS
IPR002300 aa-tRNA-synth_Ia
IPR033709 Anticodon_Ile_ABEc
IPR002301 Ile-tRNA-ligase
IPR023586 Ile-tRNA-ligase_type2
IPR013155 M/V/L/I-tRNA-synth_anticd-bd
IPR014729 Rossmann-like_a/b/a_fold
IPR009080 tRNAsynth_Ia_anticodon-bd
IPR009008 Val/Leu/Ile-tRNA-synth_edit
PfamiView protein in Pfam
PF08264 Anticodon_1, 1 hit
PF00133 tRNA-synt_1, 1 hit
PRINTSiPR00984 TRNASYNTHILE
SUPFAMiSSF47323 SSF47323, 2 hits
SSF50677 SSF50677, 1 hit
TIGRFAMsiTIGR00392 ileS, 1 hit
PROSITEiView protein in PROSITE
PS00178 AA_TRNA_LIGASE_I, 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 nameiSYI_BACAH
<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: A0RDG3
<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: January 15, 2008
Last sequence update: January 9, 2007
Last modified: December 5, 2018
This is version 86 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

Documents

  1. SIMILARITY comments
    Index of protein domains and families
  2. Aminoacyl-tRNA synthetases
    List of aminoacyl-tRNA synthetase entries
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