HARS

Not to be confused with Hamilton Anxiety Rating Scale.
Histidyl-tRNA synthetase

PDB rendering based on 1x59.
Available structures
PDB Ortholog search: PDBe, RCSB
Identifiers
SymbolsHARS ; HRS; USH3B
External IDsOMIM: 142810 MGI: 108087 HomoloGene: 1592 ChEMBL: 4002 GeneCards: HARS Gene
EC number6.1.1.21
RNA expression pattern
More reference expression data
Orthologs
SpeciesHumanMouse
Entrez303515115
EnsemblENSG00000170445ENSMUSG00000001380
UniProtP12081Q61035
RefSeq (mRNA)NM_001258040NM_008214
RefSeq (protein)NP_001244969NP_032240
Location (UCSC)Chr 5:
140.05 – 140.07 Mb
Chr 18:
36.77 – 36.78 Mb
PubMed search

Histidyl-tRNA synthetase (HARS) also known as histidine-tRNA ligase, is an enzyme which in humans is encoded by the HARS gene.[1][2]

Function

Aminoacyl-tRNA synthetases are a class of enzymes that charge tRNAs with their cognate amino acids. The protein encoded by this gene is a cytoplasmic enzyme which belongs to the class II family of aminoacyl tRNA synthetases. The enzyme is responsible for the synthesis of histidyl-transfer RNA, which is essential for the incorporation of histidine into proteins.[3] The gene is located in a head-to-head orientation with HARSL on chromosome five, where the homologous genes share a bidirectional promoter.[1]

Clinical significance

The gene product is a frequent target of autoantibodies in the human autoimmune disease polymyositis/dermatomyositis.[3]

Interactions

HARS has been shown to interact with EEF1B2[4] and EEF1G.[4]

References

  1. 1.0 1.1 "Entrez Gene: HARS histidyl-tRNA synthetase".
  2. Wasmuth JJ, Carlock LR (1986). "Chromosomal localization of human gene for histidyl-tRNA synthetase: clustering of genes encoding aminoacyl-tRNA synthetases on human chromosome 5". Somat. Cell Mol. Genet. 12 (5): 513–7. doi:10.1007/BF01539922. PMID 3464104.
  3. 3.0 3.1 Freist W, Verhey JF, Rühlmann A, Gauss DH, Arnez JG (1999). "Histidyl-tRNA synthetase". Biol. Chem. 380 (6): 623–46. doi:10.1515/BC.1999.079. PMID 10430027. Vancouver style error (help)
  4. 4.0 4.1 Sang Lee J, Gyu Park S, Park H, Seol W, Lee S, Kim S (2002). "Interaction network of human aminoacyl-tRNA synthetases and subunits of elongation factor 1 complex". Biochem. Biophys. Res. Commun. 291 (1): 158–64. doi:10.1006/bbrc.2002.6398. PMID 11829477.

Further reading