FARS2
Phenylalanine--tRNA ligase, mitochondrial
Also known as: dJ236A3.1, FARS1, mtPheRS, SYFM_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O95363
- Gene
- FARS2
- Ensembl
- ENSG00000145982
- Chromosome
- 6
- Canonical length
- 451 aa
- Protein class
- Disease related genes, Enzymes, Human disease related genes, Potential drug targets, Predicted intracellular proteins
OverviewNCBI Gene
This gene encodes a protein that transfers phenylalanine to its cognate tRNA. This protein localizes to the mitochondrion and plays a role in mitochondrial protein translation. Mutations in this gene can cause combined oxidative phosphorylation deficiency 14 (Alpers encephalopathy). Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jan 2016]
Canonical amino-acid sequenceUniProt
451 residues, UniProt reviewed canonical sequence.
>O95363|FARS2
1 MVGSALRRGA HAYVYLVSKA SHISRGHQHQ AWGSRPPAAE CATQRAPGSV VELLGKSYPQ
61 DDHSNLTRKV LTRVGRNLHN QQHHPLWLIK ERVKEHFYKQ YVGRFGTPLF SVYDNLSPVV
121 TTWQNFDSLL IPADHPSRKK GDNYYLNRTH MLRAHTSAHQ WDLLHAGLDA FLVVGDVYRR
181 DQIDSQHYPI FHQLEAVRLF SKHELFAGIK DGESLQLFEQ SSRSAHKQET HTMEAVKLVE
241 FDLKQTLTRL MAHLFGDELE IRWVDCYFPF THPSFEMEIN FHGEWLEVLG CGVMEQQLVN
301 SAGAQDRIGW AFGLGLERLA MILYDIPDIR LFWCEDERFL KQFCVSNINQ KVKFQPLSKY
361 PAVINDISFW LPSENYAEND FYDLVRTIGG DLVEKVDLID KFVHPKTHKT SHCYRITYRH
421 MERTLSQREV RHIHQALQEA AVQLLGVEGR FLocalizationUniProt · AlphaFold · HPA
Whether an antibody against FARS2 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
- 35 nTPM
Expression across tissuesHPA
Tissue
- choroid plexus: 35 nTPM
- skeletal muscle: 19 nTPM
- tongue: 17 nTPM
- heart muscle: 15 nTPM
- fallopian tube: 14 nTPM
- liver: 14 nTPM
Single-cell type
- choroid plexus epithelial cells: 891 nCPM
- lactotrophs: 535 nCPM
- gonadotrophs: 451 nCPM
- thyrotrophs: 439 nCPM
- corticotrophs: 436 nCPM
- ependymal cells: 400 nCPM
Immune cell
- T-reg: 28 nTPM
- myeloid DC: 26 nTPM
- NK-cell: 25 nTPM
- gdT-cell: 23 nTPM
- naive CD4 T-cell: 22 nTPM
- naive CD8 T-cell: 22 nTPM
Brain region
- choroid plexus: 53 nTPM
- hypothalamus: 27 nTPM
- basal ganglia: 27 nTPM
- cerebral cortex: 27 nTPM
- white matter: 22 nTPM
- amygdala: 21 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about FARS2.
Disease | AllUniProt
Conditions FARS2 is implicated in, by any mechanism.
- Combined oxidative phosphorylation deficiency 14 (COXPD14) MIM:614946
- Spastic paraplegia 77, autosomal recessive (SPG77) MIM:617046
Disease | GeneticClinVar
64 pathogenic / likely-pathogenic of 562 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Combined oxidative phosphorylation defect type 14
- Hereditary spastic paraplegia 77
- FARS2-related disorder
- Inborn genetic diseases
- See cases
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)
- 1.15
- gnomAD pLI
- 0
- gnomAD missense Z
- 0.68
- DepMap mean gene effect
- -0.33
- DepMap dependency class
- selective
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 7% 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
- Phenylalanyl-tRNA synthetase
- Ferrodoxin-fold anticodon-binding domain
- Aminoacyl-tRNA synthetase, class II
- Ferrodoxin-fold anticodon-binding domain superfamily
- Class II Aminoacyl-tRNA synthetase/Biotinyl protein ligase (BPL) and lipoyl protein ligase (LPL)
- tRNA synthetases class II core domain (F)
- Ferredoxin-fold anticodon binding domain
- Phenylalanyl-tRNA synthetase, class IIc, mitochondrial
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of FARS2 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads FARS2 as an antibody target. Whether an autoantibody or antibody against FARS2 could matter depends on whether native FARS2 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
FARS2 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 FARS2 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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