OMIA group 1791
Intestinal cobalamin (vitamin B12) malabsorption, generic
The chain reaches the human disease Imerslund-Grasbeck syndrome type 1, which Mondo defines as: “An autosomal recessive disorder characterized by onset of megaloblastic anemia associated with decreased serum vitamin B12 (cobalamin, Cbl) in infancy or early childhood. Low molecular weight (LMW) proteinuria is frequently present, but sometimes occurs later and is usually mild or subclinical. Patients often present with vague symptoms, including failure to thrive, loss of appetite, fatigue, lethargy, and/or recurrent infections. Some patients may present later in childhood with neurologic abnormalities related to B12 deficiency, such as sensorimotor neuropathy and/or cognitive disturbances.” 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 2 species entries marked as a defect.
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Human disease
Reached
2 Mondo diseases.
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Human gene
Stopped here
No gene of a species entry marked as a defect reaches a human gene through Ensembl's orthologs.
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Target evidence
Not reached
The chain stopped before this step.
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Drugs
Not reached
The chain stopped before this step.
The chain stopped at Human gene: No gene of a species entry marked as a defect reaches a human gene through Ensembl's orthologs.
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.
12.0 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 | No gene of a naturally occurring entry reaches a human gene | 0.0 of 20 |
| Both routes | One route found this disease | 5.0 of 10 |
| Species | 2 naturally occurring species entries marked as a defect | 7.0 of 10 |
12.0 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 | No gene of a naturally occurring entry reaches a human gene | 0.0 of 20 |
| Both routes | One route found this disease | 5.0 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 |
|---|---|---|---|
| dog | Canis lupus familiaris | OMIA:001791-9615 | Yes |
| domestic cat | Felis catus | OMIA:001791-9685 | 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 | No gene | OMIA records no gene for this species entry. | |
| domestic cat | No gene | OMIA records no gene for this species entry. | |
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: OMIA links the group to no Mondo disease.
- OMIA's OMIM numbers: found a disease.
| Mondo disease | Name | Found by |
|---|---|---|
| MONDO:0100156 | Imerslund-Grasbeck syndrome type 1 An autosomal recessive disorder characterized by onset of megaloblastic anemia associated with decreased serum vitamin B12 (cobalamin, Cbl) in infancy or early childhood. Low molecular weight (LMW) proteinuria is frequently present, but sometimes occurs later and is usually mild or subclinical. Patients often present with vague symptoms, including failure to thrive, loss of appetite, fatigue, lethargy, and/or recurrent infections. Some patients may present later in childhood with neurologic abnormalities related to B12 deficiency, such as sensorimotor neuropathy and/or cognitive disturbances. | OMIA's OMIM numbers |
| MONDO:0100157 | Imerslund-Grasbeck syndrome type 2 An autosomal recessive disorder characterized by onset of megaloblastic anemia associated with decreased serum vitamin B12 (cobalamin, Cbl) in infancy or early childhood. Low molecular weight (LMW) proteinuria is frequently present, but usually occurs later and is usually mild or subclinical. Patients often present with vague symptoms, including failure to thrive, loss of appetite, fatigue, lethargy, and/or recurrent infections. Treatment with vitamin B12 results in sustained clinical improvement of the anemia. The proteinuria is nonprogressive, and affected individuals do not have deterioration of kidney function; correct diagnosis is important to prevent unnecessary treatment. The disorder results from a combination of vitamin B12 deficiency due to selective malabsorption of the vitamin, and impaired reabsorption of LMW proteins in the proximal renal tubule. These defects are caused by disruption of the AMN/CUBN complex that forms the 'cubam' receptor responsible for intestinal uptake of B12/GIF (CBLIF). | 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.
The chain did not reach target evidence.
Drugs
The chain did not reach the drugs.