OMIA group 836
Protoporphyria
The chain reaches the human disease protoporphyria, erythropoietic, 1, which Mondo defines as: “An erythropoietic protoporphyria caused by biallelic variants in FECH (an autosomal recessive inheritance pattern) and causing primarily accumulation of protoporphyrin IX. Symptoms include extremely painful photosensitivity in childhood, possible microcytic anemia, cholelithiasis, and ~5% of patients develop liver failure. The majority of individuals with FECH-related erythropoietic protoporphyria harbor a hypomorphic variant (NM_000140.5:c.315-48T>C), which reduces enzyme levels by ~35%, in trans to a second pathogenic variant. Clinically individuals with this form of porphyria cannot be distinguished from those with ALAS2-related erythropoietic protoporphyria.”
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 2 species entries marked as a defect.
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Human disease
Reached
1 Mondo disease.
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Human gene
Reached
1 human gene.
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Target evidence
Stopped here
None of the group's human diseases is in Open Targets.
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Drugs
Not reached
The chain stopped before this step.
The chain stopped at Target evidence: None of the group's human diseases is in Open Targets.
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.
37.0 out of 100
| Part | Computed from | Points |
|---|---|---|
| Target evidence | No Open Targets association with this disease | 0.0 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 | 2 naturally occurring species entries marked as a defect | 7.0 of 10 |
Species
The chain follows only the species entries that OMIA marks as a defect.
| Species | Scientific name | OMIA entry | A defect |
|---|---|---|---|
| chicken | Gallus gallus | OMIA:000836-9031 | Yes |
| domestic cattle | Bos taurus | OMIA:000836-9913 | 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 |
|---|---|---|---|
| chicken | No gene | OMIA records no gene for this species entry. | |
| domestic cattle | FECH ferrochelatase NCBI Gene 281158 | FECH 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.
| Mondo disease | Name | Found by |
|---|---|---|
| MONDO:0008319 | protoporphyria, erythropoietic, 1 An erythropoietic protoporphyria caused by biallelic variants in FECH (an autosomal recessive inheritance pattern) and causing primarily accumulation of protoporphyrin IX. Symptoms include extremely painful photosensitivity in childhood, possible microcytic anemia, cholelithiasis, and ~5% of patients develop liver failure. The majority of individuals with FECH-related erythropoietic protoporphyria harbor a hypomorphic variant (NM_000140.5:c.315-48T>C), which reduces enzyme levels by ~35%, in trans to a second pathogenic variant. Clinically individuals with this form of porphyria cannot be distinguished from those with ALAS2-related erythropoietic protoporphyria. | Both routes |
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.
The chain did not reach target evidence.
Drugs
The chain did not reach the drugs.