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Entry version 105 (13 Nov 2019)
Sequence version 1 (07 Jun 2004)
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Protein

Alanine--tRNA ligase

Gene

alaS

Organism
Lactobacillus johnsonii (strain CNCM I-12250 / La1 / NCC 533)
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 alanine to tRNA(Ala) in a two-step reaction: alanine is first activated by ATP to form Ala-AMP and then transferred to the acceptor end of tRNA(Ala). Also edits incorrectly charged Ser-tRNA(Ala) and Gly-tRNA(Ala) via its editing domain.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 annotationNote: Binds 1 zinc ion per subunit.UniRule annotation

Sites

Feature keyPosition(s)DescriptionActionsGraphical viewLength
<p>This subsection of the <a href="http://www.uniprot.org/help/function_section">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 bindingi568ZincUniRule annotation1
Metal bindingi572ZincUniRule annotation1
Metal bindingi670ZincUniRule annotation1
Metal bindingi674ZincUniRule 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, RNA-binding, tRNA-binding
Biological processProtein biosynthesis
LigandATP-binding, Metal-binding, Nucleotide-binding, Zinc

Enzyme and pathway databases

BioCyc Collection of Pathway/Genome Databases

More...
BioCyci
LJOH257314:G1G0M-501-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:
Alanine--tRNA ligaseUniRule annotation (EC:6.1.1.7UniRule annotation)
Alternative name(s):
Alanyl-tRNA synthetaseUniRule annotation
Short name:
AlaRSUniRule 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:alaSUniRule annotation
Ordered Locus Names:LJ_0474
<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>OrganismiLactobacillus johnsonii (strain CNCM I-12250 / La1 / NCC 533)
<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 identifieri257314 [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 lineageiBacteriaFirmicutesBacilliLactobacillalesLactobacillaceaeLactobacillus
<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
  • UP000000581 <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_00000751291 – 882Alanine--tRNA ligaseAdd BLAST882

Proteomic databases

PRoteomics IDEntifications database

More...
PRIDEi
P61702

<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
257314.LJ_0474

<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

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SMRi
P61702

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

<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

Consists of three domains; the N-terminal catalytic domain, the editing domain and the C-terminal C-Ala domain. The editing domain removes incorrectly charged amino acids, while the C-Ala domain, along with tRNA(Ala), serves as a bridge to cooperatively bring together the editing and aminoacylation centers thus stimulating deacylation of misacylated tRNAs.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-II aminoacyl-tRNA synthetase family.UniRule annotation

Phylogenomic databases

evolutionary genealogy of genes: Non-supervised Orthologous Groups

More...
eggNOGi
ENOG4105CIM Bacteria
COG0013 LUCA

KEGG Orthology (KO)

More...
KOi
K01872

Identification of Orthologs from Complete Genome Data

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OMAi
YHHTMFE

Family and domain databases

HAMAP database of protein families

More...
HAMAPi
MF_00036_B Ala_tRNA_synth_B, 1 hit

Integrated resource of protein families, domains and functional sites

More...
InterProi
View protein in InterPro
IPR002318 Ala-tRNA-lgiase_IIc
IPR018162 Ala-tRNA-ligase_IIc_anticod-bd
IPR018165 Ala-tRNA-synth_IIc_core
IPR018164 Ala-tRNA-synth_IIc_N
IPR023033 Ala_tRNA_ligase_euk/bac
IPR003156 DHHA1_dom
IPR018163 Thr/Ala-tRNA-synth_IIc_edit
IPR009000 Transl_B-barrel_sf
IPR012947 tRNA_SAD

Pfam protein domain database

More...
Pfami
View protein in Pfam
PF02272 DHHA1, 1 hit
PF01411 tRNA-synt_2c, 1 hit
PF07973 tRNA_SAD, 1 hit

Protein Motif fingerprint database; a protein domain database

More...
PRINTSi
PR00980 TRNASYNTHALA

Simple Modular Architecture Research Tool; a protein domain database

More...
SMARTi
View protein in SMART
SM00863 tRNA_SAD, 1 hit

Superfamily database of structural and functional annotation

More...
SUPFAMi
SSF101353 SSF101353, 1 hit
SSF50447 SSF50447, 1 hit
SSF55186 SSF55186, 1 hit

TIGRFAMs; a protein family database

More...
TIGRFAMsi
TIGR00344 alaS, 1 hit

PROSITE; a protein domain and family database

More...
PROSITEi
View protein in PROSITE
PS50860 AA_TRNA_LIGASE_II_ALA, 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.

P61702-1 [UniParc]FASTAAdd to basket
« Hide
        10         20         30         40         50
MKQLTSSQVR QMFLDFFKEH GHMVMQSASL IPQDDPTLLW INSGVATMKK
60 70 80 90 100
YFDGSVVPKN HRITSSQKSI RTNDIENVGK TARHQTFFEM LGNFSVGDYF
110 120 130 140 150
KKEVIPWAWE FLTSPKWLGL DPDKLYVTVY PKDTEAYHMW HDVVGLPEDH
160 170 180 190 200
IVKLEDNFWD IGEGPCGPDS EIFYDRGQEN NDVAEDDPEN FPGGENARYL
210 220 230 240 250
EIWNIVFSQF NHLPNGKYVD QPHKNIDTGM GLERVVSIIQ DAPTNFETDL
260 270 280 290 300
FMPIIKETEK LSDGKKYAAN KEDDVAFKII ADHVRAVSFA IADGALPSNS
310 320 330 340 350
GRGYVLRRLI RRADLNGQRL GIKGAFLYKL VPVVGEIMKS HYPEVVDQQA
360 370 380 390 400
FIQKVIKNEE ERFQVTLSSG LNLLDNIIAE AKKSDDKTIS GKDAFKLFDT
410 420 430 440 450
YGFPYELTFE AAQDAGLKID KKGFDEEMKA QKERARKARG NLQSMGSQDV
460 470 480 490 500
TLMNIKDKSE FEYGTLEEKH AKLIDIVVDD KLVDKADGEH ATLIFDKTPF
510 520 530 540 550
YAERGGQVAD HGEILNQNGE LVARVTDVQH APNDQNLHFV DVILPLEKGQ
560 570 580 590 600
EYVLKVDQKR RRGLKHNHTA THLLHAALRE VLGTHTHQAG SLVEPDYLRF
610 620 630 640 650
DFTSLEPMTK KEIASVEKLV NEKIWEEIPV KTTVTDPDTG LKMGALALFG
660 670 680 690 700
EKYGDTVRVV QIDDFSTEFC GGTHCENTDQ IGMLKIVSES AVGAGTRRII
710 720 730 740 750
AVTGPEAYKY VTDRDEILKE VQDEVKATKA EDVVNKISSI EDDLRASQKE
760 770 780 790 800
AEQLKAQINK AKAGDLFNDI KQVKDLTVIA AQADVEGMND LRELADNWKS
810 820 830 840 850
SNKSDVLVLA AEVNGKANMV ISLDDKAIKA GLKAGDLIKT AAPIFGGGGG
860 870 880
GRPNMAQAGG KNPAGLKDAI AKVLQEVEEK QN
Length:882
Mass (Da):98,403
Last modified:June 7, 2004 - 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:i60586CEABFE704DA
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
AE017198 Genomic DNA Translation: AAS08466.1

NCBI Reference Sequences

More...
RefSeqi
WP_011161609.1, NC_005362.1

Genome annotation databases

Ensembl bacterial and archaeal genome annotation project

More...
EnsemblBacteriai
AAS08466; AAS08466; LJ_0474

KEGG: Kyoto Encyclopedia of Genes and Genomes

More...
KEGGi
ljo:LJ_0474

Pathosystems Resource Integration Center (PATRIC)

More...
PATRICi
fig|257314.6.peg.501

<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
AE017198 Genomic DNA Translation: AAS08466.1
RefSeqiWP_011161609.1, NC_005362.1

3D structure databases

SMRiP61702
ModBaseiSearch...

Protein-protein interaction databases

STRINGi257314.LJ_0474

Proteomic databases

PRIDEiP61702

Genome annotation databases

EnsemblBacteriaiAAS08466; AAS08466; LJ_0474
KEGGiljo:LJ_0474
PATRICifig|257314.6.peg.501

Phylogenomic databases

eggNOGiENOG4105CIM Bacteria
COG0013 LUCA
KOiK01872
OMAiYHHTMFE

Enzyme and pathway databases

BioCyciLJOH257314:G1G0M-501-MONOMER

Family and domain databases

HAMAPiMF_00036_B Ala_tRNA_synth_B, 1 hit
InterProiView protein in InterPro
IPR002318 Ala-tRNA-lgiase_IIc
IPR018162 Ala-tRNA-ligase_IIc_anticod-bd
IPR018165 Ala-tRNA-synth_IIc_core
IPR018164 Ala-tRNA-synth_IIc_N
IPR023033 Ala_tRNA_ligase_euk/bac
IPR003156 DHHA1_dom
IPR018163 Thr/Ala-tRNA-synth_IIc_edit
IPR009000 Transl_B-barrel_sf
IPR012947 tRNA_SAD
PfamiView protein in Pfam
PF02272 DHHA1, 1 hit
PF01411 tRNA-synt_2c, 1 hit
PF07973 tRNA_SAD, 1 hit
PRINTSiPR00980 TRNASYNTHALA
SMARTiView protein in SMART
SM00863 tRNA_SAD, 1 hit
SUPFAMiSSF101353 SSF101353, 1 hit
SSF50447 SSF50447, 1 hit
SSF55186 SSF55186, 1 hit
TIGRFAMsiTIGR00344 alaS, 1 hit
PROSITEiView protein in PROSITE
PS50860 AA_TRNA_LIGASE_II_ALA, 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 nameiSYA_LACJO
<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: P61702
<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: June 7, 2004
Last sequence update: June 7, 2004
Last modified: November 13, 2019
This is version 105 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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