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Entry version 135 (12 Aug 2020)
Sequence version 1 (01 Feb 1997)
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Protein

Leucine--tRNA ligase

Gene

leuS

Organism
Synechocystis sp. (strain PCC 6803 / Kazusa)
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%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

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<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 sitei625ATPUniRule 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

<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:
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%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:leuSUniRule annotation
Ordered Locus Names:sll1074
<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>OrganismiSynechocystis sp. (strain PCC 6803 / Kazusa)
<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 identifieri1111708 [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 lineageiBacteriaCyanobacteriaSynechococcalesMerismopediaceaeSynechocystisunclassified Synechocystis
<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
  • UP000001425 <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 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 or proteolytic cleavage.<p><a href='/help/chain' target='_top'>More...</a></p>ChainiPRO_00001521051 – 869Leucine--tRNA ligaseAdd BLAST869

Proteomic databases

PaxDb, a database of protein abundance averages across all three domains of life

More...
PaxDbi
P73274

PRoteomics IDEntifications database

More...
PRIDEi
P73274

<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
1148.1652380

<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
P73274

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>Motifi42 – 52'HIGH' regionAdd BLAST11
Motifi622 – 626'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
COG0495, Bacteria

InParanoid: Eukaryotic Ortholog Groups

More...
InParanoidi
P73274

KEGG Orthology (KO)

More...
KOi
K01869

Identification of Orthologs from Complete Genome Data

More...
OMAi
PVFIADY

Database for complete collections of gene phylogenies

More...
PhylomeDBi
P73274

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
IPR015413, Methionyl/Leucyl_tRNA_Synth
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, 2 hits
PF13603, tRNA-synt_1_2, 1 hit
PF09334, tRNA-synt_1g, 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%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.

P73274-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MASPYNAGEI EQKWQQRWAE WGLDKTPIAS DLPKFYALSM FPYPSGNLHM
60 70 80 90 100
GHVRNYTITD VIARLKRMQG YQVLHPMGWD AFGLPAENAA IERGIPPKQW
110 120 130 140 150
TEKNIAQMRA QLQQLGLSID WEREVATCAP DYYRWTQWLF LEFFQAGLAY
160 170 180 190 200
QKEATVNWDP IDQTVLANEQ VDSEGRSWRS GAMVERKLLR QWFLKITDYA
210 220 230 240 250
EALLNDLEQL TGWPERVKLM QSHWIGKSVG AYLEFPIKDS QEKIAVFTTR
260 270 280 290 300
PDTVYGVTYV VLAPEHPLTK VVTTAEQQGT VDEFVAMVAK ESEIERTAED
310 320 330 340 350
KPKRGVKTGG IAINPFNGEE IPILIADYVL YEYGTGAVMG VPAHDQRDFK
360 370 380 390 400
FAQDNNLPMQ VVIIPDDADN SDVNLTVAYT EAGVMVNSAQ FTGMASPKAK
410 420 430 440 450
QAIIKFAEDN DYGRAKVQYR LRDWLISRQR YWGCPIPIIH CDDCGAVPVP
460 470 480 490 500
TKDLPVELPD NVEFSGRGPS PLAKLEDWIN VPCPSCGKPA RRETDTMDTF
510 520 530 540 550
IDSSWYFLRY ADAQNTELPF DGEKVAHWLP VDQYVGGIEH AILHLLYSRF
560 570 580 590 600
FTKVLADRQL IPVKEPFQKL LTQGMVQGIT YKNPTTGKYV PAKDLQTGQQ
610 620 630 640 650
VIDPKDPKDP DSGEPLQVFY EKMSKSKFNG VDPQEVLAKY GADTARMFIL
660 670 680 690 700
FKAPPEKDLE WDDADVEGQF RFLNRVWRLV TDYIGDPAGI RFAVRPETLV
710 720 730 740 750
TNEPLTKAEK DLRRAIHGAI KEVAEDLNDD YQFNTAISEM MKLSNALIAA
760 770 780 790 800
TDLISFPVYQ EGIETLLLLL APFAPHLTEE LWHRLGRTDS IHQQAWLQVD
810 820 830 840 850
PTALVLDEIT LVIQVLGKTR GTITVPASAD KTQLEELARN SDLAQRYLEG
860
KTIKKVIVVP GKLVNFVIT
Length:869
Mass (Da):98,295
Last modified:February 1, 1997 - 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:i09D9380506F08D16
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
BA000022 Genomic DNA Translation: BAA17302.1

Protein sequence database of the Protein Information Resource

More...
PIRi
S77455

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
BAA17302; BAA17302; BAA17302

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
syn:sll1074

<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
BA000022 Genomic DNA Translation: BAA17302.1
PIRiS77455

3D structure databases

SMRiP73274
ModBaseiSearch...

Protein-protein interaction databases

STRINGi1148.1652380

Proteomic databases

PaxDbiP73274
PRIDEiP73274

Genome annotation databases

EnsemblBacteriaiBAA17302; BAA17302; BAA17302
KEGGisyn:sll1074

Phylogenomic databases

eggNOGiCOG0495, Bacteria
InParanoidiP73274
KOiK01869
OMAiPVFIADY
PhylomeDBiP73274

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
IPR015413, Methionyl/Leucyl_tRNA_Synth
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, 2 hits
PF13603, tRNA-synt_1_2, 1 hit
PF09334, tRNA-synt_1g, 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_SYNY3
<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: P73274
<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: November 1, 1997
Last sequence update: February 1, 1997
Last modified: August 12, 2020
This is version 135 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

Reference proteome

Documents

  1. Aminoacyl-tRNA synthetases
    List of aminoacyl-tRNA synthetase entries
  2. Synechocystis PCC 6803
    Synechocystis (strain PCC 6803): entries and gene names
  3. SIMILARITY comments
    Index of protein domains and families
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