WARS (gene)

Tryptophanyl-tRNA synthetase, cytoplasmic is an aminoacyl-tRNA synthetase enzyme that attaches the amino acid tryptophan to its cognate tRNA. In humans, it is encoded by the WARS gene.[5][6][7]

WARS1
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesWARS1, Tryptophanyl-tRNA synthetase, cytoplasmic, GAMMA-2, IFI53, IFP53, tryptophanyl-tRNA synthetase, HMN9, tryptophanyl-tRNA synthetase 1, WARS
External IDsOMIM: 191050 MGI: 104630 HomoloGene: 3084 GeneCards: WARS1
Orthologs
SpeciesHumanMouse
Entrez

7453

22375

Ensembl

ENSG00000140105

ENSMUSG00000021266

UniProt

P23381

P32921

RefSeq (mRNA)

NM_004184
NM_173701
NM_213645
NM_213646

NM_001164314
NM_001164488
NM_011710

RefSeq (protein)

NP_004175
NP_776049
NP_998810
NP_998811

NP_001157786
NP_001157960
NP_035840

Location (UCSC)Chr 14: 100.33 – 100.38 MbChr 12: 108.83 – 108.86 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

Two forms of tryptophanyl-tRNA synthetase exist, a cytoplasmic form, named WARS, and a mitochondrial form, named WARS2. Tryptophanyl-tRNA synthetase (WARS) catalyzes the aminoacylation of tRNA(trp) with tryptophan and is induced by interferon. Tryptophanyl-tRNA synthetase belongs to the class I tRNA synthetase family. Four transcript variants encoding two different isoforms have been found for this gene.[7]

Phenylalanine Incorporation

Although WARS1 classically aminoacylates tryptophan, during states tryptophan depeletion, this enzyme has been observed to activate both tryptophan and phenylalanine.[8]

References

  1. GRCh38: Ensembl release 89: ENSG00000140105 - Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000021266 - Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Buwitt U, Flohr T, Böttger EC (February 1992). "Molecular cloning and characterization of an interferon induced human cDNA with sequence homology to a mammalian peptide chain release factor". The EMBO Journal. 11 (2): 489–496. doi:10.1002/j.1460-2075.1992.tb05079.x. PMC 556479. PMID 1537332.
  6. Fleckner J, Rasmussen HH, Justesen J (December 1991). "Human interferon gamma potently induces the synthesis of a 55-kDa protein (gamma 2) highly homologous to rabbit peptide chain release factor and bovine tryptophanyl-tRNA synthetase". Proceedings of the National Academy of Sciences of the United States of America. 88 (24): 11520–11524. Bibcode:1991PNAS...8811520F. doi:10.1073/pnas.88.24.11520. PMC 53167. PMID 1763065.
  7. "Entrez Gene: WARS tryptophanyl-tRNA synthetase".
  8. Pataskar A, Champagne J, Nagel R, Kenski J, Laos M, Michaux J, et al. (March 2022). "Tryptophan depletion results in tryptophan-to-phenylalanine substitutants". Nature. 603 (7902): 721–727. Bibcode:2022Natur.603..721P. doi:10.1038/s41586-022-04499-2. PMC 8942854. PMID 35264796.

Further reading

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