Gene
NARS1
asparaginyl-tRNA synthetase 1
- HGNC 7643↗(opens in a new tab)
- Ensembl gene ENSG00000134440↗(opens in a new tab)
- NCBI Gene 4677↗(opens in a new tab)
Summary
- Cytogenetic location
- 18q21.31
- Coordinates
- Chromosome 18: 57,600,656–57,621,836 (GRCh38)
- Exons
- 14 exons across 21.2 kb
- Protein
- 548 amino acids
- Also known as
- AsnRS
- Previous symbols
- NARS
- MANE Select transcript
- ENST00000256854.10NM_004539.4
- Locus type
- gene with protein product
- Very high
- Confident
- Low
- Very low
Reference genomeGRCh38hg38
Positions on gene and variant pages follow this choice, in this browser.
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How NARS1 is laid out
- Coding sequence
- Untranslated region
- Intron
- Direction of transcription
- Known disease-causing sites
- Stretches short reads find hard
Exons of the gene's MANE Select transcript (release v1.5), from NCBI and EMBL-EBI, on the GRCh38 reference genome.
Chromosome bands from UCSC's GRCh38 ideogram (2022-10-29).
Nearby genes from Ensembl release 116, on GRCh38.
Exons make up 2.8 kb of the gene's 21.2 kb; 1,647 of those bases code for the protein.
How a genome test reads NARS1
18
positions in NARS1 where ClinVar classes a change as pathogenic or likely pathogenic
None of them falls in a region short reads find hard.
A whole genome covers all 21.2 kb of NARS1, introns included, not only the 2.8 kb of exons.
Traits linked to NARS1
The Human Phenotype Ontology lists these as features of the rare conditions NARS1 can cause. Each trait's page lists the other genes linked to it.
Abnormality of the nervous system
- Ataxia
- Delayed ability to walk
- Delayed speech and language development
- Global developmental delay
- Intellectual disability
- Delayed ability to sit
- Bilateral tonic-clonic seizure with generalized onset
- Decreased reflex response
Show 16 more traits
- Impaired touch sensation
- Inability to coordinate movements when walking
- Increased reflexes
- Peripheral neuropathy
- Seizure affecting one half of brain
- Brain degeneration
- Cerebral white matter hypoplasia
- Delayed CNS myelination
- Fewer and broader ridges in brain
- Fluid-filled sac located in membrane surrounding brain or spinal cord
- Jerking
- Myoclonic seizure
- Repetitive movements
- Tremor
- Underdevelopment of part of brain called corpus callosum
- Widened cerebral subarachnoid space
External links
Gene records
Transcript
Protein
Where this comes from
- HGNC: the gene's symbol, name, other symbols and location.
- MANE Select v1.5, from NCBI and EMBL-EBI: the transcript, its exons and coding sequence.
- ClinVar and the GIAB stratifications: known disease-causing sites, and the regions short reads find hard.
- The Human Phenotype Ontology, release 2026-09-01: the traits linked to the gene. Find out more at hpo.jax.org.
- Data release 2026.10.16-c6eea6bf.
Cite this page
Dante Labs. (n.d.). NARS1 gene: asparaginyl-tRNA synthetase 1. Retrieved 17 October 2026, from https://dantelabs.com/genes/nars1
Dante Labs. NARS1 gene: asparaginyl-tRNA synthetase 1 [Internet]. [cited 17 October 2026]. Available from: https://dantelabs.com/genes/nars1
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