LARS1
gene geneOn this page
Also known as HSPC192FLJ10595FLJ21788LEUSRNTLS
Summary
LARS1 (leucyl-tRNA synthetase 1, HGNC:6512) is a protein-coding gene on chromosome 5q32, encoding Leucine–tRNA ligase, cytoplasmic (Q9P2J5). Aminoacyl-tRNA synthetase that catalyzes the specific attachment of leucine to its cognate tRNA (tRNA(Leu)). It is a common-essential gene (DepMap: required in 99.5% of cancer cell lines).
This gene encodes a cytosolic leucine-tRNA synthetase, a member of the class I aminoacyl-tRNA synthetase family. The encoded enzyme catalyzes the ATP-dependent ligation of L-leucine to tRNA(Leu). It is found in the cytoplasm as part of a multisynthetase complex and interacts with the arginine tRNA synthetase through its C-terminal domain. A mutation in this gene was found in affected individuals with infantile liver failure syndrome 1. Alternatively spliced transcript variants of this gene have been observed.
Source: NCBI Gene 51520 — RefSeq curated summary.
At a glance
- Gene–disease (curated): infantile liver failure syndrome 1 (Strong, GenCC)
- Clinical variants (ClinVar): 605 total — 14 pathogenic, 14 likely-pathogenic (top 6% of genes corpus-wide)
- GTEx eGene: eQTL in 49 tissues, sQTL in 47 (q < 0.05)
- Phenotypes (HPO): 21
- Cancer dependency (DepMap): dependent in 99.5% of screened cell lines (common-essential)
- Constraint (gnomAD): pLI 0.00 (LoF-tolerant), LOEUF 0.79 (unconstrained)
- MANE Select transcript:
NM_020117 - Interaction hub: 2,395 STRING partners (top 5% of genes corpus-wide)
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:6512 |
| Approved symbol | LARS1 |
| Name | leucyl-tRNA synthetase 1 |
| Location | 5q32 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | HSPC192, FLJ10595, FLJ21788, LEUS, RNTLS |
| Ensembl gene | ENSG00000133706 |
| Ensembl biotype | protein_coding |
| OMIM | 151350 |
| Entrez | 51520 |
Gene structure
Transcript identifiers
Ensembl transcripts: 64 — 31 protein_coding, 17 nonsense_mediated_decay, 13 retained_intron, 3 protein_coding_CDS_not_defined
MANE Select: ENST00000394434
Transcript support level (Ensembl TSL; 1 = fully mRNA-supported): TSL 1: 1, TSL 2: 2, TSL 3: 4, TSL 5: 4
ENST00000394434, ENST00000504323, ENST00000505223, ENST00000506231, ENST00000507095, ENST00000508667, ENST00000508709, ENST00000510191, ENST00000511505, ENST00000512412, ENST00000618084, ENST00000674158, ENST00000674170, ENST00000674174, ENST00000674181, ENST00000674191, ENST00000674218, ENST00000674270, ENST00000674277, ENST00000674290, ENST00000674309, ENST00000674310, ENST00000674383, ENST00000674398, ENST00000674412, ENST00000674417, ENST00000674447, ENST00000674450, ENST00000674467, ENST00000674471, ENST00000674479, ENST00000907998, ENST00000907999, ENST00000908000, ENST00000908001, ENST00000908002, ENST00000908003, ENST00000908004, ENST00000923242, ENST00000923243, ENST00000923244, ENST00000923245, ENST00000923246, ENST00000923247, ENST00000923248, ENST00000923249, ENST00000970933, ENST00000970934, ENST00001003405, ENST00001003406, ENST00001003407, ENST00001043438, ENST00001043441, ENST00001043442, ENST00001080414, ENST00001080415, ENST00001080416, ENST00001080417, ENST00001080420, ENST00001080421, ENST00001103876, ENST00001107682, ENST00001130428, ENST00001139101
RefSeq mRNA: 4 — MANE Select: NM_020117
NM_001317964, NM_001317965, NM_016460, NM_020117
CCDS: CCDS34265, CCDS83029, CCDS93797, CCDS93798
Canonical transcript exons
ENST00000394434 — 32 exons
| Exon | Start | End |
|---|---|---|
| ENSE00001026660 | 146153893 | 146153980 |
| ENSE00001026662 | 146157403 | 146157628 |
| ENSE00001026664 | 146131019 | 146131109 |
| ENSE00001026669 | 146153174 | 146153227 |
| ENSE00001026689 | 146151862 | 146152002 |
| ENSE00001026692 | 146153734 | 146153810 |
| ENSE00001156449 | 146132898 | 146133081 |
| ENSE00001752781 | 146182488 | 146182650 |
| ENSE00002465699 | 146130018 | 146130158 |
| ENSE00002505955 | 146113034 | 146114311 |
| ENSE00003471443 | 146128672 | 146128782 |
| ENSE00003488127 | 146126435 | 146126545 |
| ENSE00003492300 | 146123982 | 146124086 |
| ENSE00003509120 | 146177547 | 146177665 |
| ENSE00003509134 | 146120371 | 146120503 |
| ENSE00003512870 | 146144624 | 146144709 |
| ENSE00003536965 | 146157728 | 146157795 |
| ENSE00003544811 | 146168128 | 146168265 |
| ENSE00003548361 | 146135601 | 146135664 |
| ENSE00003566597 | 146164310 | 146164471 |
| ENSE00003567194 | 146159407 | 146159470 |
| ENSE00003568827 | 146143412 | 146143550 |
| ENSE00003569000 | 146144267 | 146144349 |
| ENSE00003589329 | 146149622 | 146149699 |
| ENSE00003609043 | 146171910 | 146171990 |
| ENSE00003611362 | 146142872 | 146143084 |
| ENSE00003618671 | 146128978 | 146129118 |
| ENSE00003639628 | 146160374 | 146160486 |
| ENSE00003643699 | 146144472 | 146144537 |
| ENSE00003643724 | 146140204 | 146140261 |
| ENSE00003656293 | 146172687 | 146172774 |
| ENSE00003666274 | 146122492 | 146122587 |
Expression profiles
Bgee: expression breadth ubiquitous, 292 present calls, max score 97.76.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 82.7100 / max 2081.2741, expressed in 1819 samples.
Highest expression (Bgee): Brodmann (1909) area 23, endothelial cell, ventricular zone, adrenal tissue, middle temporal gyrus.
Genetic regulation across tissues (GTEx eQTL / sQTL)
LARS1 is an eGene in GTEx v10 — its expression is genetically regulated (eQTL) in 49 tissues and its splicing (sQTL) in 47 (q < 0.05). Strongest associations first; slope = normalized effect of the lead variant’s alternative allele.
showing 20 of 96 significant tissue × QTL associations:
| Tissue | QTL | q-value | Slope | Lead variant |
|---|---|---|---|---|
| Thyroid | eqtl | 1.1e-118 | +0.85 | 5:146092836:G:A |
| Nerve Tibial | eqtl | 6.8e-101 | +0.53 | 5:146153364:T:C |
| Artery Tibial | eqtl | 8.1e-77 | +0.48 | 5:146135783:C:T |
| Adipose Subcutaneous | eqtl | 9.5e-73 | +0.42 | 5:146100495:C:CATT |
| Breast Mammary Tissue | eqtl | 1.4e-64 | +0.52 | 5:146094254:G:A |
| Esophagus Muscularis | eqtl | 1.3e-62 | +0.47 | 5:146126685:C:T |
| Cells Cultured fibroblasts | eqtl | 3.7e-62 | +0.32 | 5:146177423:G:A |
| Adipose Visceral Omentum | eqtl | 5.4e-62 | +0.43 | 5:146165203:A:G |
| Artery Aorta | eqtl | 2.1e-60 | +0.67 | 5:146125921:T:G |
| Lung | eqtl | 2.6e-56 | +0.36 | 5:146092836:G:A |
| Skin Sun Exposed Lower leg | eqtl | 3.2e-53 | +0.40 | 5:146135783:C:T |
| Esophagus Mucosa | eqtl | 3.9e-53 | +0.34 | 5:146176249:C:T |
| Colon Transverse | eqtl | 8.6e-51 | +0.71 | 5:146126196:A:G |
| Skin Not Sun Exposed Suprapubic | eqtl | 1.8e-50 | +0.47 | 5:146126196:A:G |
| Esophagus Gastroesophageal Junction | eqtl | 6.0e-47 | +0.52 | 5:146127039:G:A |
| Muscle Skeletal | sqtl | 1.8e-46 | +1.03 | 5:146084032:T:C |
| Skin Sun Exposed Lower leg | sqtl | 2.7e-46 | +1.03 | 5:146135783:C:T |
| Adipose Subcutaneous | sqtl | 9.5e-44 | -1.04 | 5:146173839:G:C |
| Pancreas | eqtl | 1.8e-43 | +0.68 | 5:146153364:T:C |
| Brain Cerebellum | eqtl | 5.9e-41 | +0.84 | 5:146135783:C:T |
FANTOM5 promoters
4 alternative TSS:
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 63988 | 77.6466 | 1819 |
| 63986 | 2.9721 | 1141 |
| 63987 | 1.2529 | 632 |
| 63985 | 0.8383 | 311 |
Top tissues by expression
showing 100 of 296 tissues by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| Brodmann (1909) area 23 | UBERON:0013554 | 97.76 | gold quality |
| endothelial cell | CL:0000115 | 97.43 | silver quality |
| ventricular zone | UBERON:0003053 | 97.33 | gold quality |
| adrenal tissue | UBERON:0018303 | 96.92 | gold quality |
| middle temporal gyrus | UBERON:0002771 | 96.86 | gold quality |
| body of pancreas | UBERON:0001150 | 96.76 | gold quality |
| right uterine tube | UBERON:0001302 | 96.52 | gold quality |
| ganglionic eminence | UBERON:0004023 | 96.49 | gold quality |
| primary visual cortex | UBERON:0002436 | 96.21 | gold quality |
| cartilage tissue | UBERON:0002418 | 96.14 | gold quality |
| pancreas | UBERON:0001264 | 96.03 | gold quality |
| islet of Langerhans | UBERON:0000006 | 95.85 | gold quality |
| colonic epithelium | UBERON:0000397 | 95.85 | gold quality |
| tonsil | UBERON:0002372 | 95.80 | gold quality |
| mucosa of paranasal sinus | UBERON:0005030 | 95.68 | gold quality |
| gastrocnemius | UBERON:0001388 | 95.65 | gold quality |
| cortical plate | UBERON:0005343 | 95.65 | gold quality |
| stromal cell of endometrium | CL:0002255 | 95.51 | gold quality |
| muscle of leg | UBERON:0001383 | 95.46 | gold quality |
| corpus callosum | UBERON:0002336 | 95.39 | gold quality |
| germinal epithelium of ovary | UBERON:0001304 | 95.36 | gold quality |
| medial globus pallidus | UBERON:0002477 | 95.36 | gold quality |
| endometrium | UBERON:0001295 | 95.30 | gold quality |
| cerebellar cortex | UBERON:0002129 | 95.24 | gold quality |
| cerebellar hemisphere | UBERON:0002245 | 95.23 | gold quality |
| tendon of biceps brachii | UBERON:0008188 | 95.20 | gold quality |
| right lobe of thyroid gland | UBERON:0001119 | 95.08 | gold quality |
| superficial temporal artery | UBERON:0001614 | 95.08 | gold quality |
| cerebellum | UBERON:0002037 | 94.98 | gold quality |
| heart right ventricle | UBERON:0002080 | 94.97 | gold quality |
| right ovary | UBERON:0002118 | 94.94 | gold quality |
| right hemisphere of cerebellum | UBERON:0014890 | 94.92 | gold quality |
| right adrenal gland cortex | UBERON:0035827 | 94.90 | gold quality |
| rectum | UBERON:0001052 | 94.84 | gold quality |
| skeletal muscle organ | UBERON:0014892 | 94.78 | gold quality |
| muscle organ | UBERON:0001630 | 94.77 | gold quality |
| tendon | UBERON:0000043 | 94.76 | gold quality |
| right adrenal gland | UBERON:0001233 | 94.75 | gold quality |
| calcaneal tendon | UBERON:0003701 | 94.74 | gold quality |
| gingival epithelium | UBERON:0001949 | 94.66 | gold quality |
| adrenal gland | UBERON:0002369 | 94.63 | gold quality |
| occipital lobe | UBERON:0002021 | 94.61 | gold quality |
| gingiva | UBERON:0001828 | 94.58 | gold quality |
| globus pallidus | UBERON:0001875 | 94.56 | gold quality |
| left ovary | UBERON:0002119 | 94.53 | gold quality |
| body of uterus | UBERON:0009853 | 94.53 | gold quality |
| minor salivary gland | UBERON:0001830 | 94.51 | gold quality |
| thyroid gland | UBERON:0002046 | 94.50 | gold quality |
| hindlimb stylopod muscle | UBERON:0004252 | 94.49 | gold quality |
| right coronary artery | UBERON:0001625 | 94.48 | gold quality |
| entorhinal cortex | UBERON:0002728 | 94.45 | gold quality |
| left adrenal gland | UBERON:0001234 | 94.44 | gold quality |
| adrenal cortex | UBERON:0001235 | 94.41 | gold quality |
| left lobe of thyroid gland | UBERON:0001120 | 94.38 | gold quality |
| mouth mucosa | UBERON:0003729 | 94.37 | gold quality |
| left adrenal gland cortex | UBERON:0035825 | 94.37 | gold quality |
| embryo | UBERON:0000922 | 94.36 | gold quality |
| cardia of stomach | UBERON:0001162 | 94.36 | gold quality |
| skin of hip | UBERON:0001554 | 94.36 | gold quality |
| smooth muscle tissue | UBERON:0001135 | 94.35 | gold quality |
| pituitary gland | UBERON:0000007 | 94.34 | gold quality |
| saliva-secreting gland | UBERON:0001044 | 94.30 | gold quality |
| biceps brachii | UBERON:0001507 | 94.30 | gold quality |
| ovary | UBERON:0000992 | 94.28 | gold quality |
| uterus | UBERON:0000995 | 94.28 | gold quality |
| adenohypophysis | UBERON:0002196 | 94.23 | gold quality |
| superior frontal gyrus | UBERON:0002661 | 94.20 | gold quality |
| left uterine tube | UBERON:0001303 | 94.19 | gold quality |
| postcentral gyrus | UBERON:0002581 | 94.19 | gold quality |
| muscle layer of sigmoid colon | UBERON:0035805 | 94.17 | gold quality |
| caudate nucleus | UBERON:0001873 | 94.14 | gold quality |
| cardiac ventricle | UBERON:0002082 | 94.12 | gold quality |
| heart left ventricle | UBERON:0002084 | 94.12 | gold quality |
| dorsolateral prefrontal cortex | UBERON:0009834 | 94.10 | gold quality |
| lower esophagus muscularis layer | UBERON:0035833 | 94.04 | gold quality |
| lower esophagus | UBERON:0013473 | 94.03 | gold quality |
| right frontal lobe | UBERON:0002810 | 94.02 | gold quality |
| deltoid | UBERON:0001476 | 94.01 | silver quality |
| right atrium auricular region | UBERON:0006631 | 94.00 | gold quality |
| endocervix | UBERON:0000458 | 93.99 | gold quality |
| esophagogastric junction muscularis propria | UBERON:0035841 | 93.95 | gold quality |
| cauda epididymis | UBERON:0004360 | 93.94 | gold quality |
| peritoneum | UBERON:0002358 | 93.93 | gold quality |
| omental fat pad | UBERON:0010414 | 93.93 | gold quality |
| left coronary artery | UBERON:0001626 | 93.90 | gold quality |
| heart | UBERON:0000948 | 93.87 | gold quality |
| coronary artery | UBERON:0001621 | 93.85 | gold quality |
| renal medulla | UBERON:0000362 | 93.82 | gold quality |
| mucosa of sigmoid colon | UBERON:0004993 | 93.82 | gold quality |
| cerebral cortex | UBERON:0000956 | 93.80 | gold quality |
| Ammon’s horn | UBERON:0001954 | 93.80 | gold quality |
| oral cavity | UBERON:0000167 | 93.76 | gold quality |
| esophagus | UBERON:0001043 | 93.76 | gold quality |
| adipose tissue of abdominal region | UBERON:0007808 | 93.75 | gold quality |
| anterior cingulate cortex | UBERON:0009835 | 93.75 | gold quality |
| telencephalon | UBERON:0001893 | 93.74 | gold quality |
| female reproductive system | UBERON:0000474 | 93.73 | gold quality |
| brain | UBERON:0000955 | 93.73 | gold quality |
| cingulate cortex | UBERON:0003027 | 93.73 | gold quality |
| forebrain | UBERON:0001890 | 93.71 | gold quality |
Single-cell (SCXA)
Detected in 3 experiment(s), a significant marker in 1.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-ANND-3 | yes | 9.62 |
| E-GEOD-124858 | no | 676.35 |
| E-MTAB-9689 | no | 389.19 |
HPA expression
RNA tissue specificity: Low tissue specificity
showing 60 of 78 HPA tissues / cells by nTPM:
| Tissue / cell | Axis | nTPM | Protein (IHC) |
|---|---|---|---|
| Tongue | tissue | 54.9 | |
| Skeletal muscle | tissue | 51.4 | medium |
| Breast | tissue | 43.3 | high |
| Cerebral cortex | tissue | 41.5 | high |
| Somatosensory cortex | tissue | 41.5 | |
| Occipital cortex | tissue | 40.9 | |
| Putamen | tissue | 39.8 | |
| Cerebellum | tissue | 39.8 | medium |
| Retrosplenial and cingulate cortex | tissue | 39.7 | |
| Hippocampal formation | tissue | 39.0 | |
| Entorhinal cortex | tissue | 39.0 | |
| Motor cortex | tissue | 38.3 | |
| Temporal cortex | tissue | 38.2 | |
| Retrosplenial cortex | tissue | 37.8 | |
| Salivary gland | tissue | 37.7 | high |
| Prefrontal cortex | tissue | 37.5 | |
| Pons | tissue | 37.0 | |
| Thalamus | tissue | 36.5 | |
| Midbrain | tissue | 36.3 | |
| Superior colliculi | tissue | 36.3 | |
| Insular cortex | tissue | 36.1 | |
| Basal ganglia | tissue | 35.7 | medium |
| Ventral forebrain | tissue | 35.6 | |
| Corpus callosum | tissue | 35.4 | |
| Periaqueductal gray | tissue | 35.3 | |
| Olfactory bulb | tissue | 34.9 | |
| Septum | tissue | 34.7 | |
| Hypothalamus | tissue | 34.6 | |
| Substantia nigra | tissue | 34.5 | |
| Medulla oblongata | tissue | 34.3 | |
| Amygdala | tissue | 33.8 | |
| Epididymis | tissue | 33.4 | high |
| Rectum | tissue | 32.7 | medium |
| Parathyroid gland | tissue | 32.7 | medium |
| Tonsil | tissue | 32.6 | medium |
| Thyroid gland | tissue | 32.5 | medium |
| Spinal cord | tissue | 32.5 | |
| Retina | tissue | 32.2 | |
| Pituitary gland | tissue | 31.5 | |
| Smooth muscle | tissue | 31.2 | medium |
| Thymus | tissue | 30.5 | |
| Kidney | tissue | 30.1 | high |
| Ovary | tissue | 29.5 | not detected |
| Endometrium 1 | tissue | 29.3 | high |
| Pancreas | tissue | 29.2 | medium |
| Colon | tissue | 28.7 | medium |
| Prostate | tissue | 28.7 | high |
| Lymph node | tissue | 27.8 | not detected |
| Urinary bladder | tissue | 27.8 | high |
| Fallopian tube | tissue | 27.8 | high |
| Choroid plexus | tissue | 27.5 | |
| Vagina | tissue | 26.9 | medium |
| Cervix | tissue | 26.8 | medium |
| Heart muscle | tissue | 26.8 | medium |
| Seminal vesicle | tissue | 26.6 | high |
| Adrenal gland | tissue | 26.6 | not detected |
| Appendix | tissue | 25.1 | medium |
| Adipose tissue | tissue | 25.0 | not detected |
| Spleen | tissue | 24.4 | low |
| Stomach 1 | tissue | 23.3 | medium |
Brain sub-regions (HPA Brain Atlas): detected in 191; highest nTPM — Dorsal hippocampus (38.7), Ventral hippocampus (37.3), Subiculum (36.4), White matter (35.4), Dorsal spinal cord (32.5).
Regulation
Is transcription factor: no
Upstream regulators (CollecTRI, top): ATF4
miRNA regulators (miRDB)
Targeting LARS1 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific).
showing 30 of 63 miRNAs:
| miRNA | Max score | Avg score | miRNA target_count |
|---|---|---|---|
| HSA-MIR-432-3P | 100.00 | 67.86 | 705 |
| HSA-MIR-1193 | 100.00 | 65.93 | 529 |
| HSA-MIR-98-3P | 100.00 | 74.08 | 3907 |
| HSA-MIR-3134 | 100.00 | 66.43 | 777 |
| HSA-MIR-3646 | 100.00 | 73.56 | 5283 |
| HSA-LET-7A-3P | 100.00 | 74.03 | 3932 |
| HSA-LET-7B-3P | 100.00 | 74.08 | 3913 |
| HSA-LET-7F-1-3P | 100.00 | 74.02 | 3928 |
| HSA-MIR-3163 | 100.00 | 77.23 | 8605 |
| HSA-MIR-4534 | 99.99 | 66.58 | 1907 |
| HSA-MIR-150-5P | 99.99 | 66.69 | 1976 |
| HSA-MIR-5696 | 99.98 | 72.36 | 4487 |
| HSA-MIR-12136 | 99.98 | 72.81 | 5713 |
| HSA-MIR-9-3P | 99.96 | 70.88 | 2068 |
| HSA-MIR-5680 | 99.91 | 69.83 | 3421 |
| HSA-MIR-548D-3P | 99.87 | 70.67 | 4362 |
| HSA-MIR-10395-5P | 99.86 | 67.35 | 676 |
| HSA-MIR-548BB-3P | 99.86 | 70.58 | 4354 |
| HSA-MIR-5003-3P | 99.85 | 69.29 | 2517 |
| HSA-MIR-659-3P | 99.85 | 70.69 | 1620 |
| HSA-MIR-548AC | 99.84 | 70.77 | 4351 |
| HSA-MIR-548H-3P | 99.84 | 70.80 | 4349 |
| HSA-MIR-548Z | 99.84 | 70.80 | 4349 |
| HSA-MIR-6515-3P | 99.82 | 68.19 | 1933 |
| HSA-MIR-4668-5P | 99.79 | 70.58 | 3782 |
| HSA-MIR-320A-3P | 99.77 | 69.73 | 2107 |
| HSA-MIR-320B | 99.77 | 69.73 | 2107 |
| HSA-MIR-320C | 99.77 | 69.73 | 2107 |
| HSA-MIR-320D | 99.77 | 69.73 | 2107 |
| HSA-MIR-4429 | 99.77 | 69.62 | 2111 |
Functional genomics
gnomAD constraint: pLI 1.15e-13, LOEUF 0.787, missense Z 1.62 — population loss-of-function intolerance (pLI ≥ 0.9 = LoF-intolerant; lower LOEUF = more constrained). gnomAD
Regional missense constraint (gnomAD RMC): no regional variation along ENST00000394434 — one region, missense o/e 0.89.
DepMap (CRISPR cell-line fitness): dependent in 99.5% of screened cell lines, common-essential.
Most-dependent cell lines (DepMap gene-effect, lower = stronger; ≤ −0.5 shown): HCC38 (-2.229), HCC1187 (-2.202), MFE-280 (-2.068), Caov-4 (-2.03), KU812 (-2.029), UACC-62 (-1.959), Saos-2 (-1.934), S-117 (-1.825), HT-144 (-1.815), T24 (-1.758), JH-EsoAd1 (-1.753), TALL-1 (-1.749), SKM-1 (-1.749), RT4 (-1.734), MPP 89 (-1.733).
Literature-anchored findings (GeneRIF, showing 22)
- leucyl-tRNA synthetase requires its C-terminal domain for its interaction with arginyl-tRNA synthetase in the multi-tRNA synthetase complex (PMID:16055448)
- We identified a novel G3283A transition in the mitochondrial DNA tRNA(Leu (UUR)) gene in a patient with ptosis, ophthalmoparesis and hyporeflexia. (PMID:17363246)
- Results show that K600 in human leucyl-tRNA synthetase affects amino acid specificity and tRNA aminoacylation. (PMID:17378584)
- findings suggest that LARS1 may play roles in migration and growth of lung cancer cells, which suggest its potential implication in lung tumorigenesis (PMID:18446061)
- Study of crystal structures of the editing domain from 2 eukaryotic cytosolic LeuRS; shows a conserved structural core containing the active site for hydrolysis, with distinct bacterial, archeal, or eukaryotic peripheral insertions. (PMID:19426743)
- the introduction of bulky residues into the amino acid binding pocket failed to block deacylation of tRNA, indicating that the architecture of the amino acid binding pocket is different compared to that of other characterized LeuRSs (PMID:19702327)
- hcLeuRS can charge RNALeu with non-cognate amino acids and exclude the incorrect products by multiple editing pathways. (PMID:20805241)
- This work demonstrates that LRS is a key mediator for amino acid signaling to mTORC1. (PMID:22424946)
- Identification of a mutation in LARS as a novel cause of infantile hepatopathy (PMID:22607940)
- the carboxy-terminal domain of human mitochondrial (mt) leucyl-tRNA synthetase can be used to correct mt dysfunctions caused by mt-tRNA mutations. (PMID:24413190)
- Lack of a CP1 hairpin in LeuRS led to complete loss of aminoacylation, amino acid activation, and tRNA binding; however, the mutants retained post-transfer editing. (PMID:25051973)
- the KMSKS catalytic loop affects the aminoacylation and editing capacities of leucyl-tRNA synthetase (PMID:25817995)
- The results showed a decrease in autophagy on addition of leucine, demonstrating crosstalk between leucine sensing, LRS translocation, RagD interaction, and mTORC1 activation. (PMID:28882589)
- Leucyl-tRNA synthetase (LRS) is a leucine sensor of the mTORC1 pathway. (PMID:28963468)
- this study provides evidence for a role of leucyl-tRNA synthetase 1 (LARS1) in glucose-dependent control of leucine usage. (PMID:31780625)
- Molecular basis of the multifaceted functions of human leucyl-tRNA synthetase in protein synthesis and beyond. (PMID:32232361)
- Genotypic diversity and phenotypic spectrum of infantile liver failure syndrome type 1 due to variants in LARS1. (PMID:32699352)
- Severe course with lethal hepatocellular injury and skeletal muscular dysgenesis in a neonate with infantile liver failure syndrome type 1 caused by novel LARS1 mutations. (PMID:33300650)
- Infantile Liver Failure Syndrome 1 associated with a novel variant of the LARS1 gene: Clinical, genetic, and functional characterization. (PMID:33314043)
- Leucyl-tRNA synthetase 1 is required for proliferation of TSC-null cells. (PMID:34325132)
- O-GlcNAc modification of leucyl-tRNA synthetase 1 integrates leucine and glucose availability to regulate mTORC1 and the metabolic fate of leucine. (PMID:35614056)
- Identification of LARS as an essential gene for osteosarcoma proliferation through large-Scale CRISPR-Cas9 screening database and experimental verification. (PMID:35962451)
Cross-species orthologs
6 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | lars1b | ENSDARG00000019280 |
| danio_rerio | lars1a | ENSDARG00000090988 |
| mus_musculus | Lars1 | ENSMUSG00000024493 |
| rattus_norvegicus | Lars1 | ENSRNOG00000018304 |
| drosophila_melanogaster | LeuRS | FBGN0284253 |
| caenorhabditis_elegans | WBGENE00003073 |
Paralogs (7): LARS2 (ENSG00000011376), IARS2 (ENSG00000067704), VARS2 (ENSG00000137411), MARS1 (ENSG00000166986), IARS1 (ENSG00000196305), VARS1 (ENSG00000204394), MARS2 (ENSG00000247626)
Mouse-model phenotypes
Observed phenotypes of the mouse ortholog (MGI:1913808) from MGI (Alliance of Genome Resources) — knockout/mutant phenotypes, ranked by annotation count. 1 distinct phenotype terms.
| Mouse phenotype (MP) | Records |
|---|---|
| preweaning lethality, complete penetrance | 1 |
Additional cross-species homologs
Sequence homologs in species beyond Ensembl Compara’s model organisms, by Diamond local protein alignment (% sequence identity; best hit per species). Lower-identity rows are more distant homologs. The matched accessions’ gene symbols aren’t in biobtree yet, so each row shows the UniProt accession.
| Organism | UniProt | Identity | Method |
|---|---|---|---|
| Pongo abelii | Q5R614 | 98.6% | Diamond |
| Methanococcus maripaludis C5 | A4FYA3 | 96.2% | Diamond |
| Methanococcus maripaludis S2 | Q6LZD2 | 95.4% | Diamond |
| Thermococcus onnurineus NA1 | B6YST9 | 93.1% | Diamond |
| Thermococcus kodakarensis KOD1 | Q8NKR7 | 93.1% | Diamond |
| Pyrococcus horikoshii OT3 | O58698 | 91.2% | Diamond |
| Pyrococcus abyssi GE5 | Q9V0B9 | 91.2% | Diamond |
| Pyrococcus furiosus DSM 3638 | Q8U2E6 | 91.0% | Diamond |
| Pyrobaculum islandicum DSM 4184 | A1RTX9 | 86.8% | Diamond |
| Pyrobaculum neutrophilum V24Sta | B1YAS9 | 86.8% | Diamond |
| Pyrobaculum arsenaticum DSM 13514 | A4WHK6 | 82.8% | Diamond |
| Pyrobaculum aerophilum str. IM2 | Q8ZXT6 | 82.8% | Diamond |
| Sulfurisphaera tokodaii str. 7 | Q970Z6 | 69.2% | Diamond |
| Methanocaldococcus jannaschii DSM 2661 | Q58050 | 66.0% | Diamond |
| Methanothrix thermoacetophila PT | A0B7B7 | 61.5% | Diamond |
| Saccharomyces cerevisiae S288C | P26637 | 54.3% | Diamond |
| Schizosaccharomyces pombe 972h- | Q10490 | 54.3% | Diamond |
| Neurospora crassa OR74A | P10857 | 53.3% | Diamond |
| Archaeoglobus fulgidus DSM 4304 | O30250 | 53.0% | Diamond |
| Vairimorpha ceranae BRL01 | C4V8L1 | 52.7% | Diamond |
| Encephalitozoon cuniculi GB-M1 | Q8SRS8 | 52.7% | Diamond |
| Dictyostelium discoideum | Q54N83 | 51.2% | Diamond |
| Methanothermobacter thermautotrophicus str. Delta H | O27552 | 49.6% | Diamond |
| Methanopyrus kandleri AV19 | Q8TVM4 | 49.6% | Diamond |
| Ignicoccus hospitalis KIN4/I | A8A8T2 | 49.4% | Diamond |
| Arabidopsis thaliana | F4I116 | 48.5% | Diamond |
| Enterocytozoon bieneusi H348 | B7XHP6 | 44.2% | Diamond |
| Aeropyrum pernix K1 | Q9YD97 | 43.9% | Diamond |
| Staphylothermus marinus F1 | A3DKS1 | 41.2% | Diamond |
Genomic neighbors (locus context)
Genes flanking this one on the chromosome (NCBI/Entrez gene neighborhood). Positional context only — some neighbors share regulatory elements (bidirectional promoters, antisense/overlapping transcripts), but chromosomal adjacency is not itself a functional relationship (see Interactions for that).
| Symbol | Type | Entrez |
|---|---|---|
| RBM27-POU4F3 | protein-coding | 127814297 |
| SH3RF2 | protein-coding | 153769 |
| PLAC8L1 | protein-coding | 153770 |
| RBM27 | protein-coding | 54439 |
| POU4F3 | protein-coding | 5459 |
| PRELID2 | protein-coding | 153768 |
| GRXCR2 | protein-coding | 643226 |
| TCERG1 | protein-coding | 10915 |
Protein
Protein identifiers
Leucine–tRNA ligase, cytoplasmic — Q9P2J5 (reviewed: Q9P2J5)
Alternative names: Leucyl-tRNA synthetase
All UniProt accessions (13): A0A6I8PIP7, A0A6I8PIT3, A0A6I8PIV1, A0A6I8PL42, A0A6I8PLB3, A0A6I8PLB8, A0A6I8PRP1, A0A6I8PRS0, A0A6I8PRU9, A0A6I8PS05, A0A6I8PTV8, B4DER1, Q9P2J5
UniProt curated annotations — full annotation on UniProt →
Function. Aminoacyl-tRNA synthetase that catalyzes the specific attachment of leucine to its cognate tRNA (tRNA(Leu)). It performs tRNA aminoacylation in a two-step reaction: Leu is initially activated by ATP to form a leucyl-adenylate (Leu-AMP) intermediate; then the leucyl moiety is transferred to the acceptor 3’ end of the tRNA to yield leucyl-tRNA. To improve the fidelity of catalytic reactions, it is also able to hydrolyze misactivated aminoacyl-adenylate intermediates (pre-transfer editing) and mischarged aminoacyl-tRNAs (post-transfer editing).
Subunit / interactions. Part of the aminoacyl-tRNA synthetase multienzyme complex, also known as multisynthetase complex (MSC), that is composed of the aminoacyl-tRNA ligases for Arg (RARS1), Asp (DARS1), Gln (QARS1), Ile (IARS1), Leu (LARS1), Lys (KARS1), Met (MARS1) the bifunctional ligase for Glu and Pro (EPRS1) and the auxiliary subunits AIMP1/p43, AIMP2/p38 and EEF1E1/p18.
Subcellular location. Cytoplasm.
Disease relevance. Infantile liver failure syndrome 1 (ILFS1) [MIM:615438] A life-threatening disorder of hepatic function that manifests with acute liver failure in the first few months of life. Clinical features include anemia, renal tubulopathy, developmental delay, seizures, failure to thrive, and liver steatosis and fibrosis. The disease is caused by variants affecting the gene represented in this entry.
Activity regulation. 5-fluoro-1,3-dihydro-1-hydroxy-1,2-benzoxaborole inhibits LARS1 by forming a covalent adduct with the 3’ adenosine of tRNA(Leu) at the editing site, thus locking the enzyme in an inactive conformation.
Domain organisation. The structure of cytoplasmic leucine-tRNA ligase includes four main functional domains: the Rossmann-fold aminoacylation domain, the editing domain known as connective peptide 1 (CP1), the anticodon binding domain for tRNA recognition, and the vertebrate C-terminal (VC) domain for tRNA binding.
Similarity. Belongs to the class-I aminoacyl-tRNA synthetase family.
Isoforms (3)
| UniProt ID | Names | Canonical? |
|---|---|---|
| Q9P2J5-1 | 1 | yes |
| Q9P2J5-2 | 2 | |
| Q9P2J5-3 | 3 |
RefSeq proteins (4): NP_001304893, NP_001304894, NP_057544, NP_064502* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR001412 | aa-tRNA-synth_I_CS | Conserved_site |
| IPR002300 | aa-tRNA-synth_Ia | Domain |
| IPR004493 | Leu-tRNA-synth_Ia_arc/euk | Family |
| IPR009008 | Val/Leu/Ile-tRNA-synth_edit | Homologous_superfamily |
| IPR009080 | tRNAsynth_Ia_anticodon-bd | Homologous_superfamily |
| IPR013155 | M/V/L/I-tRNA-synth_anticd-bd | Domain |
| IPR014729 | Rossmann-like_a/b/a_fold | Homologous_superfamily |
| IPR054509 | LARS1_ULD | Domain |
| IPR055416 | RBD_LARS1 | Domain |
Pfam: PF00133, PF08264, PF22947, PF24810
Enzyme classification (BRENDA)
- EC 6.1.1.4 — leucine-tRNA ligase (BRENDA: 40 organisms, 173 substrates, 199 inhibitors, 375 Km, 348 kcat entries)
Substrate kinetics (BRENDA)
40 substrates with measured Km, best-characterized 15. Km ranges are aggregated across organisms/conditions.
| Substrate | Km (mM) | Measurements |
|---|---|---|
| L-LEUCINE | 0.0011–0.9 | 91 |
| TRNALEU | 0.0001–0.0273 | 81 |
| ATP | 0.08–5.8 | 68 |
| TRNAGAGLEU | 0.0001–0.0058 | 21 |
| TRNALEU(UAA) | 0.0013–0.0044 | 10 |
| L-ISOLEUCINE | 0.25–14 | 8 |
| TRNALEUCUN | 0.0002–0.025 | 7 |
| TRNALEUUUR | — | 7 |
| TRNAUAALEU | 0.0015–0.0025 | 6 |
| L-LEU | 0.008–0.05 | 5 |
| ILE-TRNALEU | 0.002–0.0025 | 4 |
| L-ISOLEUCYL-TRNALEU | 0.0092–0.0173 | 4 |
| L-METHIONINE | 0.983–7.5 | 3 |
| TRNALEU FROM AQUIFEX AEOLICUS | 0.0003–0.0014 | 3 |
| TRNALEU FROM ESCHERICHIA COLI | 0.0008–0.0015 | 3 |
Catalyzed reactions (Rhea)
- tRNA(Leu) + L-leucine + ATP = L-leucyl-tRNA(Leu) + AMP + diphosphate (RHEA:11688)
- L-methionyl-tRNA(Leu) + H2O = tRNA(Leu) + L-methionine + H(+) (RHEA:77535)
UniProt features (147 total): helix 57, strand 43, mutagenesis site 15, turn 11, binding site 5, modified residue 4, sequence variant 3, sequence conflict 3, splice variant 2, short sequence motif 2, chain 1, region of interest 1
Structure
Experimental structures (PDB)
8 structures by resolution:
| PDB | Title | Method | Resolution (Å) |
|---|---|---|---|
| 6LPF | The crystal structure of human cytoplasmic LRS | X-RAY DIFFRACTION | 2.49 |
| 6LR6 | The crystal structure of human cytoplasmic LRS | X-RAY DIFFRACTION | 3.01 |
| 6KID | Crystal structure of human leucyl-tRNA synthetase, ATP-bound form | X-RAY DIFFRACTION | 3.15 |
| 6KIE | Crystal structure of human leucyl-tRNA synthetase, Leu-AMS-bound form | X-RAY DIFFRACTION | 3.15 |
| 9W01 | Cryo-EM structure of LARS1:IARS1 complex | ELECTRON MICROSCOPY | 3.16 |
| 2WFD | Structure of the human cytosolic leucyl-tRNA synthetase editing domain | X-RAY DIFFRACTION | 3.25 |
| 6KQY | Crystal structure of human leucyl-tRNA synthetase, Leucine-bound form | X-RAY DIFFRACTION | 3.3 |
| 6KR7 | Crystal structure of methylated human leucyl-tRNA synthetase, Leu-AMS-bound form | X-RAY DIFFRACTION | 4 |
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q9P2J5-F1 | 90.78 | 0.74 |
Human Protein Atlas
Protein class: Enzymes, ENZYME proteins, Ligase, Metabolic proteins, Predicted intracellular proteins, Plasma proteins, Disease related genes, Potential drug targets, Human disease related genes, Congenital disorders of metabolism, Essential proteins
Protein evidence: Evidence at protein level
Subcellular location (HPA, imaging): cytosol; nuclear bodies
Antibody reliability (HPA): IH supported · IF approved
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Ligand- & substrate-binding residues (5)
| Position | Role |
|---|---|
| 52 | L-leucine |
| 54 | L-leucine |
| 594 | L-leucine |
| 597 | L-leucine |
| 719 | ATP |
Post-translational modifications (4)
| Type | Positions |
|---|---|
| Phosphoserine | 720, 167 |
| N6-acetyllysine | 970, 1047 |
Mutagenesis-validated functional residues (15)
| Position | Phenotype |
|---|---|
| 236–256 | loss of leucyl-trna ligase activity. decreased activity in post-transfer editing of trna(leu) mischarged with methionine. |
| 242 | reduced leucyl-trna ligase activity. |
| 245 | no effect on leucyl-trna ligase activity. |
| 245 | reduced leucyl-trna ligase activity. |
| 245 | loss of leucyl-trna ligase activity. |
| 247 | reduced leucyl-trna ligase activity. |
| 250 | reduced leucyl-trna ligase activity. decreased activity in pre-transfer editing and no effect on post-transfer editing of trna(leu) … |
| 250 | no effect on leucyl-trna ligase activity. |
| 250 | reduced leucyl-trna ligase activity. |
| 250 | loss of leucyl-trna ligase activity. |
| 514–534 | loss of leucyl-trna ligase activity. decreased activity in post-transfer editing of trna(leu) mischarged with methionine. |
| 519 | reduced leucyl-trna ligase activity. |
| 523 | reduced leucyl-trna ligase activity. |
| 525 | reduced leucyl-trna ligase activity. |
| 527 | reduced leucyl-trna ligase activity. |
Function
Pathways and Gene Ontology
Reactome pathways
2 curated (TAS) of 10; 0 disease pathways. Curated-first; evidence = TAS (manually curated) vs IEA (electronic inference).
10 pathways:
| ID | Pathway | Evidence |
|---|---|---|
| R-HSA-379716 | Cytosolic tRNA aminoacylation | curated |
| R-HSA-9856649 | Transcriptional and post-translational regulation of MITF-M expression and activity | curated |
| R-HSA-1266738 | Developmental Biology | — |
| R-HSA-9730414 | MITF-M-regulated melanocyte development | — |
| R-HSA-1430728 | Metabolism | — |
| R-HSA-71291 | Metabolism of amino acids and derivatives | — |
| R-HSA-392499 | Metabolism of proteins | — |
| R-HSA-2408522 | Selenoamino acid metabolism | electronic |
| R-HSA-72766 | Translation | — |
| R-HSA-379724 | tRNA Aminoacylation | — |
MSigDB gene sets: 268 (showing top):
GOBP_RESPONSE_TO_NITROGEN_COMPOUND, RODRIGUES_THYROID_CARCINOMA_ANAPLASTIC_UP, GOBP_AMINO_ACID_ACTIVATION, GOBP_RESPONSE_TO_ACID_CHEMICAL, GOBP_TRNA_METABOLIC_PROCESS, GOBP_POSITIVE_REGULATION_OF_TOR_SIGNALING, MEF2_02, GOBP_CELLULAR_RESPONSE_TO_ACID_CHEMICAL, GOBP_CELLULAR_RESPONSE_TO_OXYGEN_CONTAINING_COMPOUND, AACWWCAANK_UNKNOWN, GOBP_TRANSLATION, WANG_LMO4_TARGETS_DN, GOBP_RESPONSE_TO_OXYGEN_CONTAINING_COMPOUND, GOBP_CELLULAR_RESPONSE_TO_NITROGEN_COMPOUND, GOBP_POSITIVE_REGULATION_OF_INTRACELLULAR_SIGNAL_TRANSDUCTION
GO Biological Process (10): tRNA aminoacylation for protein translation (GO:0006418), glutaminyl-tRNA aminoacylation (GO:0006425), leucyl-tRNA aminoacylation (GO:0006429), cellular response to amino acid starvation (GO:0034198), cellular response to amino acid stimulus (GO:0071230), cellular response to L-leucine (GO:0071233), positive regulation of TORC1 signaling (GO:1904263), cellular response to leucine starvation (GO:1990253), translation (GO:0006412), aminoacyl-tRNA metabolism involved in translational fidelity (GO:0106074)
GO Molecular Function (9): aminoacyl-tRNA deacylase activity (GO:0002161), glutamine-tRNA ligase activity (GO:0004819), leucine-tRNA ligase activity (GO:0004823), GTPase activator activity (GO:0005096), ATP binding (GO:0005524), nucleotide binding (GO:0000166), aminoacyl-tRNA ligase activity (GO:0004812), protein binding (GO:0005515), ligase activity (GO:0016874)
GO Cellular Component (6): cytoplasm (GO:0005737), lysosome (GO:0005764), endoplasmic reticulum (GO:0005783), cytosol (GO:0005829), endomembrane system (GO:0012505), aminoacyl-tRNA synthetase multienzyme complex (GO:0017101)
Reactome top-level categories
7 top-level categories:
| Category | Pathways |
|---|---|
| Metabolism of amino acids and derivatives | 1 |
| tRNA Aminoacylation | 1 |
| MITF-M-regulated melanocyte development | 1 |
| Translation | 1 |
| Metabolism | 1 |
| Metabolism of proteins | 1 |
| Developmental Biology | 1 |
GO top-level categories
50 GO namespaces:
| Category | Terms |
|---|---|
| cellular anatomical structure | 3 |
| tRNA aminoacylation for protein translation | 2 |
| catalytic activity, acting on a tRNA | 2 |
| aminoacyl-tRNA ligase activity | 2 |
| cytoplasm | 2 |
| translation | 1 |
| tRNA aminoacylation | 1 |
| cellular response to starvation | 1 |
| response to amino acid starvation | 1 |
| response to amino acid | 1 |
| cellular response to acid chemical | 1 |
| response to L-leucine | 1 |
| cellular response to amino acid stimulus | 1 |
| cellular response to nitrogen compound | 1 |
| cellular response to oxygen-containing compound | 1 |
| positive regulation of TOR signaling | 1 |
| TORC1 signaling | 1 |
| regulation of TORC1 signaling | 1 |
| cellular response to amino acid starvation | 1 |
| peptidyltransferase activity | 1 |
| translational initiation | 1 |
| translational elongation | 1 |
| translational termination | 1 |
| macromolecule biosynthetic process | 1 |
| protein metabolic process | 1 |
| protein biosynthetic process | 1 |
| tRNA metabolic process | 1 |
| regulation of translational fidelity | 1 |
| carboxylic ester hydrolase activity | 1 |
| aminoacyl-tRNA metabolism involved in translational fidelity | 1 |
| deacylase activity | 1 |
| GTPase activity | 1 |
| enzyme activator activity | 1 |
| GTPase regulator activity | 1 |
| adenyl ribonucleotide binding | 1 |
| purine ribonucleoside triphosphate binding | 1 |
| anion binding | 1 |
| nucleoside phosphate binding | 1 |
| heterocyclic compound binding | 1 |
| ligase activity, forming carbon-oxygen bonds | 1 |
| binding | 1 |
| catalytic activity | 1 |
| intracellular anatomical structure | 1 |
| lytic vacuole | 1 |
| endomembrane system | 1 |
| intracellular membrane-bounded organelle | 1 |
| vacuole | 1 |
| plasma membrane | 1 |
| intracellular protein-containing complex | 1 |
| catalytic complex | 1 |
Experimentally-supported GO annotations
GO terms backed by direct experimental evidence (ECO experimental codes) — 17 of 25 annotations. The rest are phylogenetic / computational / electronic (IEA).
17 experimentally-supported GO terms:
| GO term | NS | Evidence |
|---|---|---|
| cellular response to L-leucine | BP | mutant phenotype |
| cellular response to amino acid starvation | BP | mutant phenotype |
| cellular response to amino acid stimulus | BP | mutant phenotype |
| cellular response to leucine starvation | BP | mutant phenotype |
| glutaminyl-tRNA aminoacylation | BP | direct assay |
| leucyl-tRNA aminoacylation | BP | direct assay |
| positive regulation of TORC1 signaling | BP | mutant phenotype |
| aminoacyl-tRNA synthetase multienzyme complex | CC | direct assay |
| cytoplasm | CC | direct assay |
| cytosol | CC | direct assay |
| endomembrane system | CC | direct assay |
| endoplasmic reticulum | CC | direct assay |
| lysosome | CC | mutant phenotype |
| GTPase activator activity | MF | mutant phenotype |
| aminoacyl-tRNA deacylase activity | MF | direct assay |
| glutamine-tRNA ligase activity | MF | direct assay |
| leucine-tRNA ligase activity | MF | direct assay |
Protein interactions and networks
STRING
showing 15 of 2,395 interactions by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| LARS1 | TARS3 | A2RTX5 | 952 |
| LARS1 | TARS2 | Q9BW92 | 951 |
| LARS1 | TARS1 | P26639 | 950 |
| LARS1 | IARS1 | P41252 | 932 |
| LARS1 | IARS2 | Q9NSE4 | 905 |
| LARS1 | RPS14 | P06366 | 880 |
| LARS1 | AARS1 | P49588 | 871 |
| LARS1 | MARS1 | P56192 | 848 |
| LARS1 | VARS2 | Q5ST30 | 848 |
| LARS1 | YARS2 | Q9Y2Z4 | 841 |
| LARS1 | YARS1 | P54577 | 839 |
| LARS1 | MARS2 | Q96GW9 | 838 |
| LARS1 | PARS2 | Q7L3T8 | 837 |
| LARS1 | QARS1 | P47897 | 836 |
| LARS1 | SARS1 | P49591 | 833 |
IntAct
Human interaction partners of LARS1 in IntAct, one row per partner (best MIscore; records = supporting IntAct interaction records).
17 partners by confidence:
| Partner | Interaction type | MIscore | Records |
|---|---|---|---|
| RARS1 | physical association | 0.760 | 3 |
| RRAGD | physical association | 0.600 | 6 |
| RPTOR | association | 0.510 | 1 |
| MTOR | association | 0.460 | 1 |
| ATP5ME | physical association | 0.400 | 1 |
| RPS10 | physical association | 0.400 | 1 |
| VIM | physical association | 0.400 | 1 |
| YWHAZ | physical association | 0.400 | 1 |
| TARS3 | association | 0.350 | 2 |
| TARSL2 | association | 0.350 | 1 |
| DISC1 | physical association | 0.000 | 1 |
| DSCAM | physical association | 0.000 | 1 |
| ERG | physical association | 0.000 | 1 |
| IKBKG | physical association | 0.000 | 1 |
| OFD1 | physical association | 0.000 | 1 |
| RELA | physical association | 0.000 | 1 |
| TANK | physical association | 0.000 | 1 |
SIGNOR signaling
3 signaling interactions:
| A | Effect | B | Mechanism |
|---|---|---|---|
| ATF4 | “up-regulates quantity by expression” | LARS1 | “transcriptional regulation” |
| LARS1 | “form complex” | “Multiaminoacyl-tRNA synthetase” | binding |
| LRRK2 | “down-regulates activity” | LARS1 | phosphorylation |
Protein complexes (CORUM) (1)
Experimentally-characterized complexes this protein is a subunit of (★ = the complex contains a known drug target).
1 complexes by size:
| Complex | Subunits | Members |
|---|---|---|
| Multisynthetase complex | 11 | IARS1, KARS1, QARS1, EPRS1, LARS1, MARS1, RARS1, AIMP1, AIMP2, DARS1, EEF1E1 |
Enriched among interaction partners
Reactome pathways and GO biological processes over-represented among this gene’s 17 IntAct physical interaction partners (hypergeometric vs the genome-wide background, BH-FDR, gene-set size 15–500, ranked by fold). A functional readout of the neighbourhood — distinct from this gene’s own memberships above, and biased toward well-studied / hub proteins, so read it as themes rather than proof.
Reactome pathways:
| Pathway | Partners | Fold | FDR |
|---|---|---|---|
| Cellular responses to stimuli | 6 | 14.5× | 1e-04 |
| Cellular responses to stress | 5 | 14.2× | 4e-04 |
Disease & clinical
Genetic variants
Variant evidence for LARS1: 605 ClinVar records (28 pathogenic / likely pathogenic). Per-variant detail is on Sugi Variant.
ClinVar
605 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 14 |
| Likely pathogenic | 14 |
| Uncertain significance | 208 |
| Likely benign | 177 |
| Benign | 124 |
Top pathogenic / likely-pathogenic (15)
Showing the 15 best-reviewed of 28 pathogenic / likely-pathogenic ClinVar records, ranked by ClinVar review status (expert panel → multiple submitters → single submitter), then by number of submitting labs.
| Variant ID | HGVS | Classification | Review | Submitters |
|---|---|---|---|---|
| 1939971 | NM_020117.11(LARS1):c.727A>T (p.Lys243Ter) | Pathogenic | criteria provided, multiple submitters, no conflicts | 2 |
| 2533694 | NM_020117.11(LARS1):c.1237C>T (p.Arg413Ter) | Pathogenic | criteria provided, multiple submitters, no conflicts | 2 |
| 214578 | NM_020117.11(LARS1):c.137_141del (p.Tyr46fs) | Pathogenic | criteria provided, single submitter | 1 |
| 214579 | NM_020117.11(LARS1):c.84_85del (p.Arg28fs) | Pathogenic | criteria provided, single submitter | 1 |
| 1048520 | NM_020117.11(LARS1):c.2504A>G (p.Tyr835Cys) | Pathogenic | criteria provided, single submitter | 1 |
| 2803844 | NM_020117.11(LARS1):c.11_12del (p.Arg4fs) | Pathogenic | criteria provided, single submitter | 1 |
| 3117894 | NM_020117.11(LARS1):c.2500A>T (p.Lys834Ter) | Pathogenic | criteria provided, single submitter | 1 |
| 3699253 | NM_020117.11(LARS1):c.2383dup (p.Arg795fs) | Pathogenic | criteria provided, single submitter | 1 |
| 4688932 | NM_020117.11(LARS1):c.1812del (p.Phe603_Tyr604insTer) | Pathogenic | criteria provided, single submitter | 1 |
| 4712611 | NM_020117.11(LARS1):c.900del (p.Phe300fs) | Pathogenic | criteria provided, single submitter | 1 |
| 4734755 | NM_020117.11(LARS1):c.904C>T (p.Gln302Ter) | Pathogenic | criteria provided, single submitter | 1 |
| 4736046 | NM_020117.11(LARS1):c.2342G>A (p.Trp781Ter) | Pathogenic | criteria provided, single submitter | 1 |
| 4738075 | NM_020117.11(LARS1):c.1621A>T (p.Lys541Ter) | Pathogenic | criteria provided, single submitter | 1 |
| 388496 | NM_020117.11(LARS1):c.1306G>A (p.Gly436Ser) | Likely pathogenic | criteria provided, single submitter | 1 |
| 388497 | NM_020117.11(LARS1):c.3064G>C (p.Glu1022Gln) | Likely pathogenic | criteria provided, single submitter | 1 |
Per-variant reference — Sugi Variant
Explore LARS1’s pathogenic and likely-pathogenic variants individually — each with its ClinVar classification and conditions, applied ACMG criteria (ClinGen expert panel, where curated), the calibrated in-silico predictors (AlphaMissense, REVEL, SaProt, conservation), gnomAD frequency, and the predictor-disagreement QC signal — on Sugi Variant.
SpliceAI
Top 10 splice-impact sites by Δscore (adjacent positions with the same effect merged into one range; 25 predictions of 2,244):
| Position(s) | Effect | Δscore | Sites |
|---|---|---|---|
| 5:146114313 | acceptor_loss | 1.0000 | |
| 5:146120369–146120370 | donor_loss | 1.0000 | 4 |
| 5:146120504–146120505 | acceptor_loss | 1.0000 | 6 |
| 5:146122536 | donor_gain | 1.0000 | |
| 5:146123980–146123981 | donor_loss | 1.0000 | 5 |
| 5:146124087 | acceptor_loss | 1.0000 | |
| 5:146124096 | acceptor_gain | 1.0000 | |
| 5:146124099 | acceptor_gain | 1.0000 | |
| 5:146124102–146124104 | acceptor_gain | 1.0000 | 2 |
| 5:146126433–146126434 | donor_loss | 1.0000 | 3 |
AlphaMissense
2,842 missense substitutions predicted likely pathogenic (of 7,803 scored), across 728 residues. Top 20 hotspot residues, ranked by the number of likely-pathogenic substitutions (of those reachable by a single-nucleotide change), then by mean score:
| Residue | Likely-pathogenic substitutions | Mean am_pathogenicity | Max am_pathogenicity |
|---|---|---|---|
| M717 | 9 | 0.980 | 0.999 |
| M990 | 9 | 0.866 | 0.992 |
| H251 | 8 | 0.997 | 0.999 |
| D596 | 8 | 0.993 | 0.998 |
| D676 | 8 | 0.993 | 0.999 |
| D752 | 8 | 0.993 | 0.999 |
| D250 | 8 | 0.992 | 0.998 |
| H681 | 8 | 0.989 | 0.998 |
| H60 | 8 | 0.988 | 0.999 |
| D399 | 8 | 0.988 | 0.994 |
| H63 | 8 | 0.986 | 0.997 |
| D748 | 8 | 0.981 | 0.998 |
| D252 | 8 | 0.979 | 0.997 |
| N56 | 8 | 0.975 | 0.999 |
| H91 | 8 | 0.975 | 0.997 |
| H689 | 8 | 0.964 | 0.989 |
| D200 | 8 | 0.960 | 0.983 |
| D405 | 8 | 0.946 | 0.986 |
| F184 | 8 | 0.936 | 0.988 |
| D794 | 8 | 0.932 | 0.971 |
HPA cancer prognostics
RNA cancer specificity: Low cancer specificity
Human Protein Atlas survival analysis — favorable = higher expression predicts better survival.
4 prognostic cancer types:
| Cancer | Prognostic | p-value |
|---|---|---|
| Liver Hepatocellular Carcinoma (TCGA) | unfavorable | 3.06e-05 |
| Kidney Chromophobe (TCGA) | unfavorable | 9.75e-05 |
| Kidney Renal Clear Cell Carcinoma (TCGA) | favorable | 0.000188 |
| Lung Squamous Cell Carcinoma (TCGA) | favorable | 0.000893 |
Disease associations
OMIM: gene MIM:151350 | disease phenotypes: MIM:615438, MIM:613070
GenCC curated gene-disease
1 curated gene-disease records:
| Disease | Classification | Inheritance | Records |
|---|---|---|---|
| infantile liver failure syndrome 1 | Strong | Autosomal recessive | 3 |
Genomics England panels (PanelApp)
Clinical diagnostic gene panels including this gene (8 panels, 8 green/diagnostic-grade). Confidence: green = diagnostic, amber = moderate.
8 panels:
| Panel | Rating |
|---|---|
| Early onset or syndromic epilepsy | green |
| Hypotonic infant | green |
| Intellectual disability | green |
| Leukodystrophy, childhood onset | green |
| Likely inborn error of metabolism | green |
| Paediatric disorders | green |
| Undiagnosed metabolic disorders | green |
| Unexplained death in infancy and sudden unexplained death in childhood | green |
Mondo (2): infantile liver failure syndrome 1 (MONDO:0024568), acute infantile liver failure due to synthesis defect of mtDNA-encoded proteins (MONDO:0013111)
Orphanet (2): Acute infantile liver failure-multisystemic involvement syndrome (Orphanet:370088), Acute infantile liver failure due to synthesis defect of mtDNA-encoded proteins (Orphanet:217371)
HPO phenotypes
21 phenotypes (HPO-id order):
| HPO | Term |
|---|---|
| HP:0000007 | Autosomal recessive inheritance |
| HP:0000252 | Microcephaly |
| HP:0000293 | Full cheeks |
| HP:0000407 | Sensorineural hearing impairment |
| HP:0001250 | Seizure |
| HP:0001252 | Hypotonia |
| HP:0001263 | Global developmental delay |
| HP:0001290 | Generalized hypotonia |
| HP:0001397 | Hepatic steatosis |
| HP:0001508 | Failure to thrive |
| HP:0001903 | Anemia |
| HP:0001972 | Macrocytic anemia |
| HP:0002007 | Frontal bossing |
| HP:0002194 | Delayed gross motor development |
| HP:0002240 | Hepatomegaly |
| HP:0002910 | Elevated circulating hepatic transaminase concentration |
| HP:0003128 | Lactic acidosis |
| HP:0003256 | Abnormality of the coagulation cascade |
| HP:0006554 | Acute hepatic failure |
| HP:0010511 | Long toe |
| HP:0100807 | Long fingers |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: yes
ChEMBL targets (1): CHEMBL3258 (SINGLE PROTEIN)
PharmGKB: 1 entry (CPIC guideline: no)
Binding affinities (BindingDB)
10 measured of 17 human assays (46 total across all organisms); most potent 10 below. Values come from heterogeneous assays and are not directly comparable.
| Ligand | Measure | Value |
|---|---|---|
| CHEMBL4558130 | IC50 | 70 nM |
| CHEMBL4104169 | IC50 | 337 nM |
| CHEMBL5653589 | KD | 1440 nM |
| CHEMBL3764310 | IC50 | 18700 nM |
| CHEMBL4061292 | IC50 | 26400 nM |
| CHEMBL3764493 | IC50 | 27600 nM |
| CHEMBL4074495 | IC50 | 44900 nM |
| CHEMBL3765025 | IC50 | 45800 nM |
| CHEMBL3763921 | IC50 | 116000 nM |
| CHEMBL2436531 | IC50 | 116000 nM |
ChEMBL bioactivities
28 potent at pChembl≥5 of 42 total, top 28 by pChembl (potency: 10 = 0.1 nM, 6 = 1 µM).
| pChembl | Type | Value | Unit | Molecule |
|---|---|---|---|---|
| 8.80 | IC50 | 1.6 | nM | CHEMBL340082 |
| 8.22 | IC50 | 6 | nM | CHEMBL341331 |
| 7.80 | IC50 | 16 | nM | CHEMBL421500 |
| 7.65 | IC50 | 22.34 | nM | LEUSA |
| 7.48 | IC50 | 33 | nM | CHEMBL4174152 |
| 7.16 | IC50 | 70.04 | nM | CHEMBL4558130 |
| 6.80 | IC50 | 160 | nM | CHEMBL4163450 |
| 6.66 | IC50 | 220 | nM | CHEMBL4171458 |
| 6.58 | Kd | 264.8 | nM | CHEMBL5653589 |
| 6.58 | ED50 | 264.8 | nM | CHEMBL5653589 |
| 6.47 | IC50 | 337.1 | nM | CHEMBL4104169 |
| 6.31 | IC50 | 490 | nM | CHEMBL4172643 |
| 6.22 | IC50 | 600 | nM | CHEMBL340082 |
| 6.14 | IC50 | 730 | nM | CHEMBL332104 |
| 6.07 | IC50 | 850 | nM | CHEMBL4159778 |
| 6.00 | IC50 | 1000 | nM | CHEMBL264002 |
| 5.96 | IC50 | 1100 | nM | CHEMBL4160841 |
| 5.94 | IC50 | 1150 | nM | CHEMBL341331 |
| 5.92 | IC50 | 1200 | nM | CHEMBL4163140 |
| 5.88 | IC50 | 1310 | nM | CHEMBL45426 |
| 5.81 | IC50 | 1550 | nM | CHEMBL74395 |
| 5.70 | IC50 | 2000 | nM | CHEMBL4167692 |
| 5.64 | IC50 | 2300 | nM | CHEMBL74755 |
| 5.47 | IC50 | 3400 | nM | CHEMBL4171058 |
| 5.41 | IC50 | 3900 | nM | CHEMBL4161986 |
| 5.35 | IC50 | 4500 | nM | CHEMBL4174897 |
| 5.33 | Kd | 4627 | nM | CHEMBL3752910 |
| 5.33 | ED50 | 4627 | nM | CHEMBL3752910 |
PubChem BioAssay actives
27 with measured affinity, of 177 total; 24 most potent distinct compounds. Largely complementary to BindingDB; screening values are coarse (µM, 4 dp), so sub-nM hits tie at the floor.
| Compound | Assay | Type | Value | Unit |
|---|---|---|---|---|
| [(2R,3S,4R,5R)-3,4-dihydroxy-5-[4-(4-phenoxyphenyl)-1,3-thiazol-2-yl]oxolan-2-yl]methyl N-[(2S)-2-amino-4-methylpentanoyl]sulfamate | 101350: Compound tested for the inhibition of Escherichia coli Leucyl-tRNA synthetase | ic50 | 0.0016 | uM |
| [(2R,3S,4R,5R)-3,4-dihydroxy-5-[4-(2-phenylethyl)-1,3-thiazol-2-yl]oxolan-2-yl]methyl N-[(2S)-2-amino-4-methylpentanoyl]sulfamate | 101350: Compound tested for the inhibition of Escherichia coli Leucyl-tRNA synthetase | ic50 | 0.0020 | uM |
| [(2R,3S,4R,5R)-3,4-dihydroxy-5-[4-[2-(4-phenoxyphenyl)ethyl]-1,3-thiazol-2-yl]oxolan-2-yl]methyl N-[(2S)-2-amino-4-methylpentanoyl]sulfamate | 101350: Compound tested for the inhibition of Escherichia coli Leucyl-tRNA synthetase | ic50 | 0.0060 | uM |
| (4aR,6S,7R,7aS)-7-[[2-[[(2S)-2-amino-4-methylpentanoyl]sulfamoyl]acetyl]amino]-4-carbamoyl-6-hydroxy-2-methyl-4a,5,6,7a-tetrahydro-1H-cyclopenta[c]pyridine-7-carboxylic acid | 101353: Compound was evaluated for its inhibitory activity against Leucyl-tRNA synthetase from staphylococcus aureus WCUH29 | ic50 | 0.0160 | uM |
| [(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl N-[(2S)-2-amino-4-methylpentanoyl]sulfamate | 1686658: Inhibition of catalytic activity of LRS (unknown origin) by aminoleucylation assay | ic50 | 0.0223 | uM |
| (2S)-2-amino-N-[3-(2-amino-6-phenylpyrimidin-4-yl)phenyl]sulfonyl-4-methylpentanamide | 1350198: Inhibition of human LeuRS assessed as reduction in ATP consumption | ic50 | 0.0330 | uM |
| [(2R,3S,4R,5R)-5-(6-aminopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl N-[(2S,3R)-2,3-dihydroxy-4-methylpentanoyl]sulfamate | 1686658: Inhibition of catalytic activity of LRS (unknown origin) by aminoleucylation assay | ic50 | 0.0700 | uM |
| (2S)-2-amino-N-[3-(2-amino-6-methylpyrimidin-4-yl)phenyl]sulfonyl-4-methylpentanamide | 1350198: Inhibition of human LeuRS assessed as reduction in ATP consumption | ic50 | 0.1600 | uM |
| (2S)-2-amino-4-methyl-N-naphthalen-2-ylsulfonylpentanamide | 1350198: Inhibition of human LeuRS assessed as reduction in ATP consumption | ic50 | 0.2200 | uM |
| 4-methyl-3-[(2-methyl-6-pyridin-3-ylpyrazolo[3,4-d]pyrimidin-4-yl)amino]-N-[3-(trifluoromethyl)phenyl]benzamide | 2148639: Binding affinity to human LARS incubated for 45 mins by Kinobead based pull down assay | kd | 0.2648 | uM |
| [(2R,3S,4R,5R)-5-(6-amino-2-iodopurin-9-yl)-3,4-dihydroxyoxolan-2-yl]methyl N-[(2S)-2-hydroxy-4-methylpentanoyl]sulfamate | 1686658: Inhibition of catalytic activity of LRS (unknown origin) by aminoleucylation assay | ic50 | 0.3371 | uM |
| (2S)-2-amino-N-[3-(2-amino-4-pyridinyl)phenyl]sulfonyl-4-methylpentanamide | 1350198: Inhibition of human LeuRS assessed as reduction in ATP consumption | ic50 | 0.4900 | uM |
| (2S)-2-amino-N-[3-(6-amino-2-pyridinyl)phenyl]sulfonyl-4-methylpentanamide | 1350198: Inhibition of human LeuRS assessed as reduction in ATP consumption | ic50 | 0.8500 | uM |
| [(2R,3S,4R,5R)-3,4-dihydroxy-5-(4-phenyl-1,3-thiazol-2-yl)oxolan-2-yl]methyl N-[(2S,3S)-2-amino-3-methylpentanoyl]sulfamate | 101350: Compound tested for the inhibition of Escherichia coli Leucyl-tRNA synthetase | ic50 | 1.0000 | uM |
| (2S)-2-amino-N-(benzenesulfonyl)-4-methylpentanamide | 1350198: Inhibition of human LeuRS assessed as reduction in ATP consumption | ic50 | 1.1000 | uM |
| (2S)-2-amino-4-methyl-N-(3-pyridin-4-ylphenyl)sulfonylpentanamide | 1350198: Inhibition of human LeuRS assessed as reduction in ATP consumption | ic50 | 1.2000 | uM |
| 1-[5-[4-(4-chlorophenyl)phenoxy]pentyl]-3-pyridin-4-ylimidazolidin-2-one | 255776: Inhibitory activity against Echovirus 9 using plaque reduction assay | ic50 | 1.3100 | uM |
| (4aR,6S,7R,7aS)-7-[[2-[[(2S,3S)-2-amino-3-methylpentanoyl]sulfamoyl]acetyl]amino]-4-carbamoyl-6-hydroxy-2-methyl-4a,5,6,7a-tetrahydro-1H-cyclopenta[c]pyridine-7-carboxylic acid | 101353: Compound was evaluated for its inhibitory activity against Leucyl-tRNA synthetase from staphylococcus aureus WCUH29 | ic50 | 1.5500 | uM |
| (2S)-2-amino-4-methyl-N-[3-(6-methylpyrimidin-4-yl)phenyl]sulfonylpentanamide | 1350198: Inhibition of human LeuRS assessed as reduction in ATP consumption | ic50 | 2.0000 | uM |
| (4aR,6S,7R,7aS)-7-[[2-[[(2S)-2-amino-3-methylbutanoyl]sulfamoyl]acetyl]amino]-4-carbamoyl-6-hydroxy-2-methyl-4a,5,6,7a-tetrahydro-1H-cyclopenta[c]pyridine-7-carboxylic acid | 101353: Compound was evaluated for its inhibitory activity against Leucyl-tRNA synthetase from staphylococcus aureus WCUH29 | ic50 | 2.3000 | uM |
| (2S)-2-amino-4-methyl-N-(3-phenylphenyl)sulfonylpentanamide | 1350198: Inhibition of human LeuRS assessed as reduction in ATP consumption | ic50 | 3.4000 | uM |
| (2S)-2-amino-N-[3-(2-aminopyrimidin-4-yl)phenyl]sulfonyl-4-methylpentanamide | 1350198: Inhibition of human LeuRS assessed as reduction in ATP consumption | ic50 | 3.9000 | uM |
| (2S)-2-amino-N-[3-[[2-(4-bromo-2-chlorophenoxy)acetyl]carbamothioylamino]phenyl]sulfonyl-4-methylpentanamide | 1350210: Inhibition of human cytoplasmic LeuRS assessed as reduction in protein synthesis measured after 10 mins in presence of [3H]Leu by scintillation counting method | ic50 | 4.5000 | uM |
| 4-methyl-3-[(1-methyl-6-pyridin-3-ylpyrazolo[3,4-d]pyrimidin-4-yl)amino]-N-[3-(trifluoromethyl)phenyl]benzamide | 2148639: Binding affinity to human LARS incubated for 45 mins by Kinobead based pull down assay | kd | 4.6274 | uM |
CTD chemical–gene interactions
55 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| Valproic Acid | affects cotreatment, decreases expression, affects expression | 4 |
| Cyclosporine | increases expression | 4 |
| bisphenol A | affects expression, decreases expression | 3 |
| trichostatin A | affects cotreatment, decreases expression | 2 |
| 4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamide | affects cotreatment, decreases expression | 2 |
| Tetrachlorodibenzodioxin | decreases expression | 2 |
| Tretinoin | decreases expression | 2 |
| Cadmium Chloride | increases abundance, increases palmitoylation, increases expression, decreases reaction | 2 |
| aristolochic acid I | decreases expression | 1 |
| bisphenol F | increases expression | 1 |
| TAK-243 | increases sumoylation | 1 |
| geldanamycin | increases expression | 1 |
| chloroacetaldehyde | decreases expression | 1 |
| methylmercuric chloride | decreases expression | 1 |
| pyrogallol 1,3-dimethyl ether | increases expression, affects cotreatment, affects localization, decreases expression | 1 |
| arsenite | affects binding, decreases reaction | 1 |
| 2-bromopalmitate | decreases reaction, increases abundance, increases palmitoylation | 1 |
| ochratoxin A | decreases expression | 1 |
| perfluorooctane sulfonic acid | increases expression | 1 |
| CGP 52608 | affects binding, increases reaction | 1 |
| nutlin 3 | affects cotreatment, increases secretion | 1 |
| torcetrapib | increases expression | 1 |
| ICG 001 | increases expression | 1 |
| bisphenol B | increases expression | 1 |
| 2,2’,4,4’-tetrabromodiphenyl ether | decreases expression | 1 |
| dorsomorphin | affects cotreatment, decreases expression | 1 |
| LDN 193189 | affects cotreatment, decreases expression | 1 |
| bisphenol AF | increases expression | 1 |
| Resveratrol | affects cotreatment, increases expression | 1 |
| Temozolomide | increases expression | 1 |
ChEMBL screening assays
35 unique, capped per target: 32 binding, 2 admet, 1 functional
Representative assays (with source publication via chembl_document):
| Assay ID | Type | Description | Source paper |
|---|---|---|---|
| CHEMBL3769291 | Binding | Inhibition of human leucyl-tRNA synthetase assessed as reduction of [14C]-L-leucine ligation to tRNA incubated for 5 mins by scintillation counting method in presence of ATP | Discovery of potent anti-tuberculosis agents targeting leucyl-tRNA synthetase. — *Bioorg Med Chem* |
| CHEMBL4020313 | ADMET | Inhibition of human N-terminal 6His-tagged cytoplasmic LeuRS expressed in Escherichia coli BL21(DE3) assessed as L-[14C]leucine incorporation in to Escherichia coli tRNA after 20 mins by liquid scintillation counting analysis | Discovery of a Potent and Specific M. tuberculosis Leucyl-tRNA Synthetase Inhibitor: (S)-3-(Aminomethyl)-4-chloro-7-(2-hydroxyethoxy)benzo[c][1,2]oxaborol-1(3H)-ol (GSK656). — *J Med Chem* |
| CHEMBL885012 | Functional | Inhibitory activity against Echovirus 9 using plaque reduction assay | Synthesis and antipicornavirus activity of (R)- and (S)-1-[5-(4’-chlorobiphenyl-4-yloxy)-3-methylpentyl]-3-pyridin-4-yl-imidazolidin-2-one. — *Bioorg Med Chem Lett* |
Clinical trials (associated diseases)
Via MONDO — disease-level, not drug-specific.
showing 60 of 98 trials:
| NCT | Phase | Status | Title |
|---|---|---|---|
| NCT01655212 | Phase 3 | TERMINATED | Congenital Cytomegalovirus: Efficacy of Antiviral Treatment in a Randomized Controlled Trial |
| NCT02005822 | Phase 3 | COMPLETED | Congenital Cytomegalovirus: Efficacy of Antiviral Treatment |
| NCT03374514 | Phase 3 | UNKNOWN | Cochlear Electrical Impedance and the Effect of Topical Dexamethasone on Cochlear Implant Surgery |
| NCT02497690 | Phase 2 | COMPLETED | Effectiveness of Therapy Via Telemedicine Following Cochlear Implants |
| NCT03107871 | Phase 2 | TERMINATED | Randomized Controlled Trial of Valganciclovir for Cytomegalovirus Infected Hearing Impaired Infants |
| NCT04120116 | Phase 2 | COMPLETED | FX-322 in Adults With Stable Sensorineural Hearing Loss |
| NCT05061758 | Phase 2 | WITHDRAWN | A Trial of LY3056480 in Patients With SNLH |
| NCT07364747 | Phase 2 | RECRUITING | Protective Effect of Acetylcysteine Against Cisplatinum-Induced Ototoxicity: A Randomized Controlled Trial |
| NCT02038972 | Phase 1 | COMPLETED | Safety of Autologous Stem Cell Infusion for Children With Acquired Hearing Loss |
| NCT02259595 | Phase 1 | COMPLETED | Study to Determine the Safety, Tolerability, and Pharmacokinetic Profile of HPN-07 and HPN-07 Plus NAC |
| NCT05514470 | Not specified | WITHDRAWN | Impact of Mutations in Aminoacyl tRNA Synthetases on Protein Translation and Cellular Stress |
| NCT06566066 | Not specified | RECRUITING | Register for Patients With Thyroid Hormone Resistance. |
| NCT02693704 | Phase 2/3 | COMPLETED | Evaluation of a Binaural Spatialization Method for Hearing Aids |
| NCT02882477 | Phase 2/3 | UNKNOWN | Treatment of Wolfram Syndrome Type 2 With the Chelator Deferiprone and Incretin Based Therapy |
| NCT01267994 | Phase 1/2 | COMPLETED | A Clinical Trial of Anakinra for Steroid-Resistant Autoimmune Inner Ear Disease |
| NCT01902914 | Phase 1/2 | UNKNOWN | Effectiveness of P02 Digital Hearing Aids |
| NCT02616172 | Phase 1/2 | SUSPENDED | Autologous Bone Marrow Harvest and Transplant for Sensorineural Hearing Loss |
| NCT03616223 | Phase 1/2 | COMPLETED | FX-322 in Sensorineural Hearing Loss |
| NCT04129775 | Phase 1/2 | COMPLETED | OTO-413 in Subjects With Speech-in-Noise Hearing Impairment |
| NCT04462198 | Phase 1/2 | COMPLETED | Phase I/IIa Study Evaluating Safety and Efficacy of an Intratympanic Dose of PIPE-505 in Subjects With Hearing Loss |
| NCT07032038 | Phase 1/2 | NOT_YET_RECRUITING | First In Human Randomised Trial of Rincell-1 in Adults With a Cochlear Implant |
| NCT06025097 | Early Phase 1 | COMPLETED | Intra-Tympanic Steroid With PRP Combination in Sensorineural Hearing Loss and Tinnitus. |
| NCT06707389 | Early Phase 1 | NOT_YET_RECRUITING | Autologous Blood Monocyte Vesicles for the Treatment of Sudden Deafness |
| NCT07472023 | Early Phase 1 | ENROLLING_BY_INVITATION | Regenerative Medicine and Stem Cell-Based Interventions for Inner Ear Trauma, Tinnitus, and Sensorineural Hearing Loss |
| NCT00023036 | Not specified | COMPLETED | Clinical and Genetic Analysis of Enlarged Vestibular Aqueducts |
| NCT00023049 | Not specified | COMPLETED | Genetic Analysis of Hereditary Disorders of Hearing and Balance |
| NCT00261768 | Not specified | COMPLETED | Efficacy of Digital Noise Reduction Strategies: A Hearing Aid Trial |
| NCT00589511 | Not specified | COMPLETED | Nucleus Freedom Cochlear Implant System Pediatric Post-approval Study |
| NCT00678899 | Not specified | COMPLETED | Evaluation of the Nucleus Hybrid™ L24 Cochlear Implant System |
| NCT00787189 | Not specified | COMPLETED | Study of Low Level Laser Therapy and Word Recognition in Hearing Impaired Individuals |
| NCT01184248 | Not specified | COMPLETED | The Effect of Sound Stimulation on Pure-tone Hearing Threshold |
| NCT01434446 | Not specified | COMPLETED | The Effect of Sound Stimulation on Hearing Ability |
| NCT01749592 | Not specified | COMPLETED | Single-sided Deafness and Cochlear Implants |
| NCT01781039 | Not specified | COMPLETED | Investigation of Anatomical Correlates of Speech Discrimination |
| NCT02082431 | Not specified | COMPLETED | Determine the Incidence of Long QT Amongst a Large Cohort of Subjects Diagnosed With Unilateral or Bilateral Sensorineural Hearing Loss. |
| NCT02093806 | Not specified | UNKNOWN | Clinical Applications of Round Window Imaging Anatomy in Cochlear Implant Surgery |
| NCT02252601 | Not specified | UNKNOWN | Evaluation of the High Frequency Digit Triplet Test in Cystic Fibrosis |
| NCT02584361 | Not specified | UNKNOWN | Cochlear Implant and Vestibular Function. |
| NCT02638883 | Not specified | COMPLETED | Implantation of the Cochlear™ Nucleus® Hybrid S Round Window (S-RW) in Adults |
| NCT02689349 | Not specified | COMPLETED | Esteem New Subject Enrollment Post Approval Study |
| NCT02698787 | Not specified | COMPLETED | Fundamental Asynchronous Stimulus Timing Sound Coding Study |
| NCT02798783 | Not specified | COMPLETED | Enlarged Vestibular Aqueduct Registry |
| NCT03212924 | Not specified | COMPLETED | Listening Effort in Cochlear Implant Users |
| NCT03260374 | Not specified | UNKNOWN | Objective Measures in Cochlear Implant |
| NCT03288753 | Not specified | COMPLETED | Comparison Between Neuro 1 and Neuro 2 Cochlear Implant Speech Processors |
| NCT03467399 | Not specified | COMPLETED | Clinical Evaluation of a Cochlear Implant System |
| NCT03718975 | Not specified | COMPLETED | Quality Control of CE-Certified Phonak Hearing Aids - 2018_28 |
| NCT03746613 | Not specified | COMPLETED | Clinal Evaluation of Navigation Based Functional Ear Surgery Using Image Guided and Robotically Assisted Techniques |
| NCT03858647 | Not specified | TERMINATED | Electrode Placement and Audiologic Outcomes With the Advanced Bionics HiFocus L23 Electrode |
| NCT03938753 | Not specified | COMPLETED | Quality Control of CE-Certified Phonak Hearing Aids - 2018_42 |
| NCT03992989 | Not specified | COMPLETED | Quality Control of CE-Certified Phonak Hearing Aids - 2019_19 |
| NCT04102215 | Not specified | UNKNOWN | The Efficacy of a Minimally Invasive Direct Cochlear Access Via the HEARO Procedure |
| NCT04108598 | Not specified | UNKNOWN | The SeaSHeL National Prospective Cohort Study |
| NCT04183361 | Not specified | UNKNOWN | ABR Characteristics and Salivary Cortisone Concentration in Noise-exposed Workers |
| NCT04241679 | Not specified | COMPLETED | Auditory Nerve Test System During Vestibular Schwannoma Resection |
| NCT04331015 | Not specified | COMPLETED | Artificial Intelligence in Diagnosis of DFNA9 |
| NCT04450290 | Not specified | COMPLETED | Dexamethasone-Eluting Cochlear Implant Electrode |
| NCT04610450 | Not specified | COMPLETED | The Performance of a Robot-assisted Minimally Invasive Direct Cochlear Access for Cochlear Implantation |
| NCT04733950 | Not specified | RECRUITING | Cochlear Implanted Listening Effort and Hearing Attention |
| NCT04741009 | Not specified | COMPLETED | Perimodiolar Implant Performance in Adults With Low-Frequency Residual Hearing |
Predicted chemistry — Sugi Predict
The predicted patent-compound landscape for LARS1 across ~30M SureChEMBL compounds — explore on Sugi Predict.
Related Atlas pages
- Associated diseases: infantile liver failure syndrome 1
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): acute infantile liver failure due to synthesis defect of mtDNA-encoded proteins, infantile liver failure syndrome 1, sensorineural hearing loss disorder