OMIA group 78
Ataxia, cerebellar, neonatal, GRM1-related
The chain reaches the human disease autosomal recessive spinocerebellar ataxia 13, which Mondo defines as: “Autosomal recessive congenital cerebellar ataxia due to MGLUR1 deficiency is a rare, genetic, slowly progressive neurodegenerative disease resulting from MGLUR1 deficiency characterized by global developmental delay (beginning in infancy), mild to severe intellectual deficit with poor or absent speech, moderate to severe stance and gait ataxia, pyramidal signs (e.g. hyperreflexia) and mild dysdiadochokinesia, dysmetria, tremors, and/or dysarthria. Oculomotor signs, such as nystagmus, strabismus, ptosis and hypometric saccades, may also be associated. Brain imaging reveals progressive, generalized, moderate to severe cerebellar atrophy, inferior vermian hypoplasia, and/or constitutionally small brain.” It reaches 1 more human disease, listed below.
The chain
From the animal disease to the drugs. The page shows what each step found and where the chain stopped. It does not say whether the animal is a model of a human disease.
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Animal disease
Reached
OMIA records it in 1 species entry marked as a defect.
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Human disease
Reached
2 Mondo diseases.
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Human gene
Reached
1 human gene.
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Target evidence
Reached
2 Open Targets associations, with a best score of 0.77.
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Drugs
Stopped here
No ChEMBL drug acts on a human gene of the group's target evidence.
The chain stopped at Drugs: No ChEMBL drug acts on a human gene of the group's target evidence.
Natural-model score
How complete and how well supported the chain to each human disease is, out of 100, by stated rules. It does not say that the animal is a validated model of the human disease. How the score works.
60.9 out of 100
| Part | Computed from | Points |
|---|---|---|
| Target evidence | Open Targets score of 0.77 | 26.9 of 35 |
| Drugs | No drug has been tested for this disease, and none acts on its genes | 0.0 of 25 |
| Ortholog | One to one ortholog | 20.0 of 20 |
| Both routes | Both routes found this disease | 10.0 of 10 |
| Species | 1 naturally occurring species entry marked as a defect | 4.0 of 10 |
52.8 out of 100
| Part | Computed from | Points |
|---|---|---|
| Target evidence | Open Targets score of 0.68 | 23.8 of 35 |
| Drugs | No drug has been tested for this disease, and none acts on its genes | 0.0 of 25 |
| Ortholog | One to one ortholog | 20.0 of 20 |
| Both routes | One route found this disease | 5.0 of 10 |
| Species | 1 naturally occurring species entry marked as a defect | 4.0 of 10 |
Species
The chain follows only the species entries that OMIA marks as a defect.
| Species | Scientific name | OMIA entry | A defect |
|---|---|---|---|
| dog | Canis lupus familiaris | OMIA:000078-9615 | Yes |
Genes
Each gene OMIA records for a species entry, and the human gene it reaches through Ensembl's orthologs.
| Species | Animal gene | Human gene | Ortholog |
|---|---|---|---|
| dog | GRM1 glutamate receptor, metabotropic 1 NCBI Gene 484024 | GRM1 Ensembl | one to one |
Human diseases
Two routes lead from an OMIA group to a Mondo human disease: OMIA's own Mondo link, and the group's OMIM numbers through Mondo's cross-references.
- OMIA's own Mondo link: found a disease.
- OMIA's OMIM numbers: found a disease.
The two routes found some of the same diseases, but not all.
| Mondo disease | Name | Found by |
|---|---|---|
| MONDO:0013905 | autosomal recessive spinocerebellar ataxia 13 Autosomal recessive congenital cerebellar ataxia due to MGLUR1 deficiency is a rare, genetic, slowly progressive neurodegenerative disease resulting from MGLUR1 deficiency characterized by global developmental delay (beginning in infancy), mild to severe intellectual deficit with poor or absent speech, moderate to severe stance and gait ataxia, pyramidal signs (e.g. hyperreflexia) and mild dysdiadochokinesia, dysmetria, tremors, and/or dysarthria. Oculomotor signs, such as nystagmus, strabismus, ptosis and hypometric saccades, may also be associated. Brain imaging reveals progressive, generalized, moderate to severe cerebellar atrophy, inferior vermian hypoplasia, and/or constitutionally small brain. | Both routes |
| MONDO:0033479 | spinocerebellar ataxia 44 | OMIA's OMIM numbers |
Target evidence
Each Open Targets association between one of the group's human genes and one of its human diseases, with its overall score and the score for each kind of evidence.
| Human gene | Human disease | Score | Evidence | Kinds of evidence |
|---|---|---|---|---|
| GRM1 | autosomal recessive spinocerebellar ataxia 13 | 0.77 | 63 | Genetic literature 0.82 Genetic association 0.79 Animal model 0.66 Literature 0.18 |
| GRM1 | spinocerebellar ataxia 44 | 0.68 | 50 | Genetic literature 0.85 Genetic association 0.75 Animal model 0.61 Literature 0.09 |
Drugs
No ChEMBL drug acts on a human gene of the group's target evidence.