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Entry version 93 (16 Oct 2019)
Sequence version 1 (06 Dec 2005)
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Protein

Leucine--tRNA ligase

Gene

leuS

Organism
Synechococcus elongatus (strain PCC 7942) (Anacystis nidulans R2)
Status
Reviewed-Annotation score:

Annotation score:2 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

<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

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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 sitei632ATPUniRule 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, Nucleotide-binding

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
SYNEL:SYNPCC7942_1920-MONOMER

<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:
Leucine--tRNA ligaseUniRule annotation (EC:6.1.1.4UniRule annotation)
Alternative name(s):
Leucyl-tRNA synthetaseUniRule annotation
Short name:
LeuRSUniRule 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:leuSUniRule annotation
Ordered Locus Names:Synpcc7942_1920
<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>OrganismiSynechococcus elongatus (strain PCC 7942) (Anacystis nidulans R2)
<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 identifieri1140 [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 lineageiBacteriaCyanobacteriaSynechococcalesSynechococcaceaeSynechococcus
<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
  • UP000002717 <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_10000094571 – 865Leucine--tRNA ligaseAdd BLAST865

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
Q31LW9

<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
1140.Synpcc7942_1920

<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

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

More...
SMRi
Q31LW9

Database of comparative protein structure models

More...
ModBasei
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>Motifi58 – 68'HIGH' regionAdd BLAST11
Motifi629 – 633'KMSKS' region5

<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.UniRule annotation

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105C8T Bacteria
COG0495 LUCA

The HOGENOM Database of Homologous Genes from Fully Sequenced Organisms

More...
HOGENOMi
HOG000200747

KEGG Orthology (KO)

More...
KOi
K01869

Identification of Orthologs from Complete Genome Data

More...
OMAi
TFMVLAP

Database of Orthologous Groups

More...
OrthoDBi
32262at2

Family and domain databases

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_00049_B Leu_tRNA_synth_B, 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
IPR002302 Leu-tRNA-ligase
IPR025709 Leu_tRNA-synth_edit
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

The PANTHER Classification System

More...
PANTHERi
PTHR43740 PTHR43740, 1 hit

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF08264 Anticodon_1, 1 hit
PF00133 tRNA-synt_1, 3 hits
PF13603 tRNA-synt_1_2, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00985 TRNASYNTHLEU

Superfamily database of structural and functional annotation

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

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR00396 leuS_bact, 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>. 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_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.

Q31LW9-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MQNGANSRSQ EYQGVSVDSR YDPQAIETKW QQSWAAAQLD RTPEADDRPK
60 70 80 90 100
FYALSMFPYP SGNLHMGHVR NYTITDAIAR VKRRQGFRVL HPMGWDAFGL
110 120 130 140 150
PAENAAIDRG VQPADWTYQN VAQMREQLKQ LGLSYDWDRE VTTCSPDYYR
160 170 180 190 200
WTQWLFLQFF EAGLAYQKEA TVNWDPIDQT VLANEQVDSE GRSWRSGAKV
210 220 230 240 250
ERRQLKQWFL KITDYAEELL QDLDQLTGWP ERVRLMQANW IGKSTGAYLE
260 270 280 290 300
FPIVNSSDRV KVFTTRPDTV YGVSYVVLAP EHPLVTQVTT PEQQTAVAAF
310 320 330 340 350
AAEVSQTSEL ERTAEDRPKR GVPTGGFVTN PFTGQAVPIW IADYVLVEYG
360 370 380 390 400
TGAVMGVPAH DSRDFAFAQR YGLPVQPVIQ PTEGAIAEPW PAPFTEAGVM
410 420 430 440 450
VNSGQFDGLS STEAKAKIIA FAEEQGWGQA HVQYRLRDWL ISRQRYWGCP
460 470 480 490 500
IPIVHCPDCG PVAAADLPVQ LPDSVQFSGR GPSPLAQLED WVTTTCPSCG
510 520 530 540 550
KPARRETDTM DTFMCSSWYY LRYSDASNPE IAFTKDKVND WLPVDQYVGG
560 570 580 590 600
IEHAILHLLY SRFFTKVLRD RGLLSFDEPF KRLLTQGMVQ GLTYKNPKTG
610 620 630 640 650
KYVPSDRISD PSQPVDPDTG DRLEVFFEKM SKSKYNGVDP ARVLDRYGAD
660 670 680 690 700
TARMFILFKA PPEKDLEWDD ADVEGQFRFL NRVWRLVQTA SQVEATTAAD
710 720 730 740 750
DKAEKDLRRA VHTAIQAVTE DLEEDYQLNT AIAELMKLTN ALNDAPMPGS
760 770 780 790 800
PAYLEGVQTL VLLLAPFAPH IAEELWQQLG GERSVHLEGW PVLDESALIV
810 820 830 840 850
DEIPLVIQIM GKTRGTITVP ASADRDQLQQ LAENSEIAQR WLDGQTIRKV
860
IVVPGKLVNF VIASP
Length:865
Mass (Da):97,336
Last modified:December 6, 2005 - 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:iA7AF0B63AC9D72E1
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
CP000100 Genomic DNA Translation: ABB57950.1

NCBI Reference Sequences

More...
RefSeqi
WP_011378240.1, NC_007604.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
ABB57950; ABB57950; Synpcc7942_1920

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
syf:Synpcc7942_1920

<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
CP000100 Genomic DNA Translation: ABB57950.1
RefSeqiWP_011378240.1, NC_007604.1

3D structure databases

SMRiQ31LW9
ModBaseiSearch...

Protein-protein interaction databases

STRINGi1140.Synpcc7942_1920

Proteomic databases

PRIDEiQ31LW9

Genome annotation databases

EnsemblBacteriaiABB57950; ABB57950; Synpcc7942_1920
KEGGisyf:Synpcc7942_1920

Phylogenomic databases

eggNOGiENOG4105C8T Bacteria
COG0495 LUCA
HOGENOMiHOG000200747
KOiK01869
OMAiTFMVLAP
OrthoDBi32262at2

Enzyme and pathway databases

BioCyciSYNEL:SYNPCC7942_1920-MONOMER

Family and domain databases

Gene3Di3.40.50.620, 1 hit
3.90.740.10, 1 hit
HAMAPiMF_00049_B Leu_tRNA_synth_B, 1 hit
InterProiView protein in InterPro
IPR001412 aa-tRNA-synth_I_CS
IPR002300 aa-tRNA-synth_Ia
IPR002302 Leu-tRNA-ligase
IPR025709 Leu_tRNA-synth_edit
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
PANTHERiPTHR43740 PTHR43740, 1 hit
PfamiView protein in Pfam
PF08264 Anticodon_1, 1 hit
PF00133 tRNA-synt_1, 3 hits
PF13603 tRNA-synt_1_2, 1 hit
PRINTSiPR00985 TRNASYNTHLEU
SUPFAMiSSF47323 SSF47323, 1 hit
SSF50677 SSF50677, 1 hit
TIGRFAMsiTIGR00396 leuS_bact, 1 hit
PROSITEiView protein in PROSITE
PS00178 AA_TRNA_LIGASE_I, 1 hit

ProtoNet; Automatic hierarchical classification of proteins

More...
ProtoNeti
Search...

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 nameiSYL_SYNE7
<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: Q31LW9
<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: December 6, 2005
Last modified: October 16, 2019
This is version 93 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. Aminoacyl-tRNA synthetases
    List of aminoacyl-tRNA synthetase entries
  2. SIMILARITY comments
    Index of protein domains and families
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