VARS2 - valyl-tRNA synthetase 2, mitochondrial Gene

Also Known as VALRS; VARSL; VARS2L; COXPD20

Species: Homo sapiens

Gene Type: protein coding
Gene ID: 57176

About VARS2

Cytogenetic location: 6p21.33 Genomic coordinates (GRCh38): 6:30,914,238-30,926,459 (from NCBI)

This gene has 13 transcripts (splice variants), 1 gene allele, 180 orthologues, 7 paralogues and is associated with 1 phenotype. Ubiquitous expression in brain (RPKM 7.4), esophagus (RPKM 6.1) and 25 other tissues.

Summary

This gene encodes a mitochondrial Aminoacyl-tRNA Synthetase, which catalyzes the attachment of valine to tRNA(Val) for mitochondrial translation. Mutations in this gene cause combined Oxidative Phosphorylation deficiency-20, and are also associated with early-onset mitochondrial encephalopathies. Alternative splicing of this gene results in multiple transcript variants. [provided by RefSeq, Aug 2014]

VARS2 Products (3)

mRNA Protein Name
NM_001167733.3 NP_001161205.1 valine--tRNA ligase, mitochondrial isoform 3
NM_001167734.2 NP_001161206.1 valine--tRNA ligase, mitochondrial isoform 1
NM_020442.6 NP_065175.4 valine--tRNA ligase, mitochondrial isoform 2 precursor
Molecular Function GO Annotation Evidence References Source
enables protein binding IPI
IPI: Inferred from physical interaction
25416956 GOA
enables valine-tRNA ligase activity IMP
IMP: Inferred from mutant phenotype
24827421 GOA
EXP: Inferred from Experiment IDA: Inferred from direct assay IPI: Inferred from physical interaction IMP: Inferred from mutant phenotype IGI: Inferred from genetic interaction IEP: Inferred from expression pattern

VARS2 Protein Structure

tRNA-synt_1

tRNA-synt_1: tRNA synthetases class I (I, L, M and V) (113 - 734)

Anticodon_1

Anticodon_1: Anticodon-binding domain of tRNA (779 - 927)

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  • 1063 a.a.
Protein Preferred Names Protein Names

valine--tRNA ligase, mitochondrial

  • valine tRNA ligase 2, mitochondrial (putative)

VARS2 Protein-protein interaction Information

Type
Protein Name Protein ID Interactor Interactor Species Interactor ID Detection Method References
Intra
VARS2 Q5ST30 ABI2 Homo sapiens Q9NYB9-2 32296183
Intra
VARS2 Q5ST30 ABI2 Homo sapiens Q9NYB9-2 32296183
Intra
VARS2 Q5ST30 ABI2 Homo sapiens Q9NYB9-2 32296183
Intra
VARS2 Q5ST30 ABI1 Homo sapiens Q8IZP0-5 32296183
Intra
VARS2 Q5ST30 ABI1 Homo sapiens Q8IZP0-5 32296183
Intra
VARS2 Q5ST30 ABI1 Homo sapiens Q8IZP0-5 32296183
Intra
VARS2 Q5ST30 NCK2 Homo sapiens O43639 32296183
Intra
VARS2 Q5ST30 NCK2 Homo sapiens O43639 32296183
Intra
VARS2 Q5ST30 SORBS3 Homo sapiens O60504 32296183
Intra
VARS2 Q5ST30 SORBS3 Homo sapiens O60504 32296183
Intra
VARS2 Q5ST30 ABI3 Homo sapiens Q9P2A4 32296183
Intra
VARS2 Q5ST30 ABI3 Homo sapiens Q9P2A4 32296183
Intra
VARS2 Q5ST30 ABI3 Homo sapiens Q9P2A4 32296183
Cross: Cross-species interaction Intra: Intraspecies interaction

Related Diseases

Diseases Alias
Combined Oxidative Phosphorylation Deficiency 20
  • COXPD20

  • Combined Oxidative Phosphorylation Defect Type 20

  • Oxidative Phosphorylation Deficiency, Combined, Type 20

Neurodevelopmental Disorder With Microcephaly, Seizures, And Cortical Atrophy
  • NDMSCA

  • Neurodevelopmental Disorder With Microcephaly, Seizures, Cortical Atrophy

Combined Oxidative Phosphorylation Deficiency
Combined Oxidative Phosphorylation Deficiency 23
  • COXPD23

  • Combined Oxidative Phosphorylation Defect Type 23

  • Oxidative Phosphorylation Deficiency, Combined, Type 23

Combined Oxidative Phosphorylation Deficiency 2
  • COXPD2

  • Combined Oxidative Phosphorylation Defect Type 2

  • Agenesis Of Corpus Callosum With Dysmorphism And Fatal Lactic Acidosis

  • Corpus Callosum, Agenesis Of, With Dysmorphism And Fatal Lactic Acidosis

  • Combined Oxidative Phosphorylation Deficiency, Type 2

Combined Oxidative Phosphorylation Deficiency 24
  • COXPD24

  • Combined Oxidative Phosphorylation Defect Type 24

  • Oxidative Phosphorylation Deficiency, Combined, Type 24

Combined Oxidative Phosphorylation Deficiency 12
  • COXPD12

  • Ltbl

  • Leukoencephalopathy With Thalamus And Brainstem Involvement And High Lactate

  • Leukoencephalopathy-Thalamus And Brainstem Anomalies-High Lactate Syndrome

  • Combined Oxidative Phosphorylation Defect Type 12

  • Combined Oxidative Phosphorylation Deficiency, Type 12

Charcot-Marie-Tooth Disease, Axonal, Type 2u
  • CMT2U

  • Charcot-Marie-Tooth Disease Axonal Type 2u

  • Charcot-Marie-Tooth Neuropathy, Type 2u

  • Charcot-Marie-Tooth Disease, Axonal, Autosomal Dominant, Type 2u

  • Autosomal Dominant Charcot-Marie-Tooth Disease Type 2u

  • Autosomal Dominant Axonal Charcot-Marie-Tooth Disease Type 2u

  • Charcot-Marie-Tooth Neuropathy Type 2u

  • Autosomal Dominant Charcot-Marie-Tooth Disease Type 2 Due To Mars Mutation

  • Charcot-Marie-Tooth Disease 2u

Epilepsy
  • Epilepsy Syndrome

  • Epileptic Syndrome

  • Epilepsies

  • Symptomatic Epilepsies

  • Post Traumatic Epilepsy

  • Traumatic Epilepsy

  • Traumatic Epileptic

  • Epilepsy Due To Hippocampal Sclerosis

  • Epilepsy With Ammon'S Horn Sclerosis

  • Epilepsy Due To Cortical Dysplasia

  • Epilepsy Due To Neuronal Migration Disorders

Ptosis
  • Blepharoptosis

  • Drooping Eyelid

  • Droopy Eyelid

  • Ptosis Of Eyelid

  • Paralysis Of Levator Palpebrae Superioris

Perrault Syndrome
  • Gonadal Dysgenesis, Xx Type, With Deafness

  • Ovarian Dysgenesis With Sensorineural Deafness

  • Gonadal Dysgenesis, Xx Type

  • Gonadal Dysgenesis With Auditory Dysfunction, Autosomal Recessive Inheritance

  • Gonadal Dysgenesis With Sensorineural Deafness, Autosomal Recessive Inheritance

  • Xx Gonodal Dysgenesis-Deafness Syndrome

  • Xx Gonodal Dysgenesis-Hearing Loss Syndrome

  • Gonadal Dysgenesis Xx Type Deafness

Pontocerebellar Hypoplasia
  • Pch

  • Congenital Pontocerebellar Hypoplasia

  • Opch

  • Hypoplasia, Pontocerebellar

  • Pontoneocerebellar Hypoplasia

  • Nonsyndromic Pontocerebellar Hypoplasia

Microcephaly
  • Microencephaly

  • Microcephalus

  • Microcephalic

  • Nanocephaly

  • Congenital Microcephaly

  • Brain Hypoplasia

  • Brain Nondevelopment

  • Cephalic Hypoplasia

  • Undeveloped Cerebrum

  • Undeveloped Brain

  • Micrencephalon

  • Micrencephaly

Spastic Ataxia
  • Spax

  • Ataxia, Spastic

Leigh Syndrome
  • Leigh Disease

  • Infantile Subacute Necrotizing Encephalopathy

  • Leigh Syndrome Due To Mitochondrial Complex Iv Deficiency

  • LS

  • Sne

  • Leigh'S Disease

  • Leigh Syndrome Due To Mitochondrial Complex I Deficiency

  • Necrotizing Encephalopathy, Infantile Subacute, Of Leigh

  • Subacute Necrotizing Encephalomyelopathy

  • Necrotizing Encephalopathy Infantile Subacute Of Leigh

  • Leigh Syndrome Due To Mitochondrial Complex Iii Deficiency

  • Infantile Necrotizing Encephalomyelopathy

  • Juvenile Subacute Necrotizing Encephalomyelopathy

  • Leigh'S Necrotizing Encephalopathy

  • Subacute Necrotizing Encephalopathy

  • Juvenile Subacute Necrotizing Encephalopathy

  • Leigh Syndrome Due To Mitochondrial Complex Ii Deficiency

  • Leigh Syndrome Due To Mitochondrial Complex V Deficiency

  • Encephalopathy, Subacute Necrotizing, Infantile

  • Encephalopathy, Subacute Necrotizing, Juvenile

  • Maternally Inherited Leigh Syndrome

  • Subacute Necrotising Encephalomyelopathy

  • Subacute Necrotising Encephalopathy

Congenital Nervous System Abnormality
  • Congenital Neurologic Anomaly

  • Congenital Nervous System Disorder

Diseases Alias
Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Waldenstroem'S Macroglobulinemia

Waldenstroem'S Macroglobulinemia

Macroglobulinemia Of Waldenstrom

Lymphoplasmacytic Lymphoma With Igm Gammopathy

Lymphoplasmacytic Lymphoma

Orthologs Information

Species Symbol Source ID
Canis familiaris VARS2 VGNC VGNC:48232
Bos taurus VARS2 VGNC VGNC:36766
Mus musculus VARS2 MGD MGI:1916165
Macaca mulatta VARS2 VGNC VGNC:83965
Rattus norvegicus VARS2 RGD RGD:1303122
Felis catus VARS2 VGNC VGNC:66920
Others VARS2 NCBI