Seroatlas · Human Serome Atlas

WARS2

Tryptophan--tRNA ligase, mitochondrial

Also known as: mtTrpRS, SYWM_HUMAN

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q9UGM6
Gene
WARS2
Ensembl
ENSG00000116874
Chromosome
1
Canonical length
360 aa
Protein class
Disease related genes, Enzymes, Human disease related genes, Potential drug targets, Predicted intracellular proteins
Subcellular location
Mitochondria

OverviewNCBI Gene

Aminoacyl-tRNA synthetases catalyze the aminoacylation of tRNA by their cognate amino acid. Because of their central role in linking amino acids with nucleotide triplets contained in tRNAs, aminoacyl-tRNA synthetases are thought to be among the first proteins that appeared in evolution. Two forms of tryptophanyl-tRNA synthetase exist, a cytoplasmic form, named WARS, and a mitochondrial form, named WARS2. This gene encodes the mitochondrial tryptophanyl-tRNA synthetase. Two alternative transcripts encoding different isoforms have been described. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

360 residues, UniProt reviewed canonical sequence.

>Q9UGM6|WARS2
     1  MALHSMRKAR ERWSFIRALH KGSAAAPALQ KDSKKRVFSG IQPTGILHLG NYLGAIESWV
    61  RLQDEYDSVL YSIVDLHSIT VPQDPAVLRQ SILDMTAVLL ACGINPEKSI LFQQSQVSEH
   121  TQLSWILSCM VRLPRLQHLH QWKAKTTKQK HDGTVGLLTY PVLQAADILL YKSTHVPVGE
   181  DQVQHMELVQ DLAQGFNKKY GEFFPVPESI LTSMKKVKSL RDPSAKMSKS DPDKLATVRI
   241  TDSPEEIVQK FRKAVTDFTS EVTYDPAGRA GVSNIVAVHA AVTGLSVEEV VRRSAGMNTA
   301  RYKLAVADAV IEKFAPIKRE IEKLKLDKDH LEKVLQIGSA KAKELAYTVC QEVKKLVGFL

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against WARS2 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Intracellular
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.29
Highest tissue expression
9.6 nTPM

Expression across tissuesHPA

Tissue

  • parathyroid gland: 9.6 nTPM
  • kidney: 9 nTPM
  • breast: 8.8 nTPM
  • fallopian tube: 8.8 nTPM
  • adrenal gland: 8.4 nTPM
  • choroid plexus: 8.4 nTPM

Single-cell type

  • cardiomyocytes: 110 nCPM
  • fibro-adipogenic progenitors: 102 nCPM
  • choroid plexus epithelial cells: 95 nCPM
  • endometrial ciliated cells: 73 nCPM
  • alveolar cells type 1: 70 nCPM
  • mesothelial cells: 69 nCPM

Immune cell

  • myeloid DC: 6.7 nTPM
  • naive B-cell: 6.3 nTPM
  • classical monocyte: 5 nTPM
  • MAIT T-cell: 5 nTPM
  • memory B-cell: 4.6 nTPM
  • memory CD8 T-cell: 4.5 nTPM

Brain region

  • choroid plexus: 14 nTPM
  • white matter: 5.8 nTPM
  • hypothalamus: 5.4 nTPM
  • medulla oblongata: 5.2 nTPM
  • midbrain: 5.1 nTPM
  • spinal cord: 5 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about WARS2.

Disease | AllUniProt

Conditions WARS2 is implicated in, by any mechanism.

Disease | GeneticClinVar

17 pathogenic / likely-pathogenic of 180 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
0.67
gnomAD pLI
0.05
gnomAD missense Z
0.9
DepMap mean gene effect
-0.44
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads WARS2 as an antibody target. Whether an autoantibody or antibody against WARS2 could matter depends on whether native WARS2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

WARS2 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label WARS2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/WARS2. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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