Combined oxidative phosphorylation defect type 15
General Information (adopted from Orphanet):
Synonyms, Signs: |
COXPD15 |
Number of Symptoms | 68 |
OrphanetNr: | 319524 |
OMIM Id: |
614947
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ICD-10: |
G31.8 |
UMLs: |
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MeSH: |
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MedDRA: |
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Snomed: |
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Prevalence, inheritance and age of onset:
Prevalence: | No data available. |
Inheritance: |
Monogenic Autosomal recessive 23499752 [IBIS] |
Age of onset: |
Infancy Childhood Adolescent 24461907 [IBIS] |
Disease classification (adopted from Orphanet):
Parent Diseases: |
Mitochondrial disorder due to a defect in mitochondrial protein synthesis
-Rare developmental defect during embryogenesis -Rare genetic disease -Rare neurologic disease |
Comment:
Mutations in mitochondrial methionyl-tRNA formyltransferase (MTFMT = COXPD15) underlie a human disorder of formylation causing impaired mitochondrial translation (PMID:21907147). |
Symptom Information:
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(HPO:0000648) | Optic atrophy | Occasional [IBIS] rare [HPO:skoehler] | 13% (n=16) | 24461907 | IBIS | 238 / 7739 |
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(HPO:0000543) | Optic disc pallor | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 67 / 7739 |
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(HPO:0000639) | Nystagmus | rare [HPO:skoehler] | 24461907 | IBIS | 555 / 7739 | |
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(HPO:0000602) | Ophthalmoplegia | Occasional [IBIS] | 13% (n=16) | 24461907 | IBIS | 56 / 7739 |
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(HPO:0000486) | Strabismus | Occasional [IBIS] rare [HPO:skoehler] | 19% (n=16) | 24461907 | IBIS | 576 / 7739 |
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(HPO:0000505) | Visual impairment | Rare [IBIS] rare [HPO:skoehler] | 6% (n=16) | 24461907 | IBIS | 297 / 7739 |
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(HPO:0007663) | Reduced visual acuity | rare [HPO:skoehler] | 24461907 | IBIS | 100 / 7739 | |
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(HPO:0002090) | Pneumonia | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 59 / 7739 |
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(HPO:0002151) | Increased serum lactate | rare [HPO:skoehler] | 24461907 | IBIS | 92 / 7739 | |
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(HPO:0003128) | Lactic acidosis | Frequent [IBIS] | 38% (n=16) | 24461907 | IBIS | 116 / 7739 |
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(HPO:0004900) | Severe lactic acidosis | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 5 / 7739 |
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(HPO:0004322) | Short stature | Occasional [IBIS] rare [HPO:skoehler] | 13% (n=16) | 24461907 | IBIS | 1232 / 7739 |
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(HPO:0003542) | Increased serum pyruvate | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 18 / 7739 |
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(HPO:0001629) | Ventricular septal defect | Rare [IBIS] rare [HPO:skoehler] | 6% (n=16) | 24461907 | IBIS | 316 / 7739 |
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(HPO:0001638) | Cardiomyopathy | Occasional [IBIS] | 13% (n=16) | 24461907 | IBIS | 192 / 7739 |
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(HPO:0001639) | Hypertrophic cardiomyopathy | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 137 / 7739 |
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(HPO:0001716) | Wolff-Parkinson-White syndrome | Occasional [IBIS] rare [HPO:skoehler] | 13% (n=16) | 24461907 | IBIS | 21 / 7739 |
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(HPO:0012102) | Abnormal mitochondrial number | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 4 / 7739 |
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(HPO:0011925) | Decreased activity of mitochondrial ATP synthase complex | 23499752 | IBIS | 10 / 7739 | ||
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(HPO:0011923) | Decreased activity of mitochondrial complex I | 23499752 | IBIS | 35 / 7739 | ||
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(HPO:0008347) | Decreased activity of mitochondrial complex IV | 23499752 | IBIS | 31 / 7739 | ||
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(HPO:0000824) | Growth hormone deficiency | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 56 / 7739 |
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(HPO:0009058) | Increased muscle lipid content | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 6 / 7739 |
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(HPO:0001252) | Muscular hypotonia | Frequent [IBIS] rare [HPO:skoehler] | 50% (n=16) | 24461907 | IBIS | 990 / 7739 |
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(HPO:0008947) | Infantile muscular hypotonia | 24461907 | IBIS | 482 / 7739 | ||
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(HPO:0001324) | Muscle weakness | 24461907 | IBIS | 859 / 7739 | ||
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(HPO:0002490) | Increased CSF lactate | Occasional [IBIS] | 31% (n=16) | 24461907 | IBIS | 28 / 7739 |
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(HPO:0001251) | Ataxia | Occasional [IBIS] rare [HPO:skoehler] | 19% (n=16) | 24461907 | IBIS | 413 / 7739 |
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(HPO:0002066) | Gait ataxia | Occasional [IBIS] | 13% (n=16) | 24461907 | IBIS | 327 / 7739 |
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(HPO:0002311) | Incoordination | 23499752 | IBIS | 84 / 7739 | ||
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(HPO:0007256) | Abnormal pyramidal signs | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 116 / 7739 |
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(HPO:0002061) | Lower limb spasticity | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 56 / 7739 |
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(HPO:0006986) | Upper limb spasticity | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 15 / 7739 |
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(HPO:0012434) | Delayed social development | 24461907 | IBIS | 1 / 7739 | ||
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(HPO:0010522) | Dyslexia | 23499752 | IBIS | 7 / 7739 | ||
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(HPO:0001260) | Dysarthria | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 329 / 7739 |
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(HPO:0001263) | Global developmental delay | Frequent [IBIS] | 69% (n=16) | 24461907 | IBIS | 853 / 7739 |
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(HPO:0011342) | Mild global developmental delay | 24461907 | IBIS | 10 / 7739 | ||
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(HPO:0011344) | Severe global developmental delay | 24461907 | IBIS | 46 / 7739 | ||
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(HPO:0001249) | Intellectual disability | Occasional [IBIS] | 13% (n=16) | 24461907 | IBIS | 1089 / 7739 |
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(HPO:0010862) | Delayed fine motor development | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 3 / 7739 |
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(HPO:0002194) | Delayed gross motor development | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 37 / 7739 |
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(HPO:0012431) | Episodic fatigue | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 1 / 7739 |
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(HPO:0100543) | Cognitive impairment | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 230 / 7739 |
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(HPO:0000750) | Delayed speech and language development | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 197 / 7739 |
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(HPO:0002317) | Unsteady gait | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 45 / 7739 |
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(HPO:0001337) | Tremor | Rare [IBIS] rare [HPO:skoehler] | 6% (n=16) | 24461907 | IBIS | 200 / 7739 |
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(HPO:0001250) | Seizures | rare [HPO:skoehler] | 24461907 | IBIS | 1245 / 7739 | |
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(HPO:0002069) | Generalized tonic-clonic seizures | 24461907 | IBIS | 96 / 7739 | ||
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(HPO:0000252) | Microcephaly | Frequent [IBIS] rare [HPO:skoehler] | 38% (n=16) | 24461907 | IBIS | 832 / 7739 |
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(HPO:0001578) | Hypercortisolism | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 17 / 7739 |
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(HPO:0002893) | Pituitary adenoma | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 16 / 7739 |
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(HPO:0005957) | Breathing dysregulation | 24461907 | IBIS | 6 / 7739 | ||
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(HPO:0001510) | Growth delay | 24461907 | IBIS | 295 / 7739 | ||
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(HPO:0002500) | Abnormality of the cerebral white matter | 24461907 | IBIS | 73 / 7739 | ||
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(HPO:0011441) | Abnormality of the medulla oblongata | Occasional [IBIS] | 18% (n=11) | 24461907 | IBIS | 4 / 7739 |
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(HPO:0002120) | Cerebral cortical atrophy | 24461907 | IBIS | 187 / 7739 | ||
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(HPO:0012748) | Focal T2 hyperintense brainstem lesion | 24461907 | IBIS | 2 / 7739 | ||
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(HPO:0007183) | Focal T2 hyperintense basal ganglia lesion | 24461907 | IBIS | 6 / 7739 | ||
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(HPO:0002878) | Respiratory failure | Rare [IBIS] | 6% (n=16) | 24461907 | IBIS | 57 / 7739 |
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(HPO:0007039) | Symmetric lesions of the basal ganglia | Frequent [IBIS] | 64% (n=11) | 24461907 | IBIS | 2 / 7739 |
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(IBIS) | Leigh-like lesions on brain magnetic resonance imaging (MRI) | 24461907 | IBIS | 3 / 7739 | ||
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(MedDRA:10069632) | Bladder dysfunction | 24461907 | IBIS | 3 / 7739 | ||
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(OMIM) | Abnormal breathing pattern | 24461907 | IBIS | 8 / 7739 | ||
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(OMIM) | Difficulty reading | 23499752 | IBIS | 2 / 7739 | ||
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(OMIM) | Impaired mitochondrial translation | 24461907 | IBIS | 4 / 7739 | ||
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(OMIM) | Leigh syndrome | 24461907 | IBIS | 7 / 7739 | ||
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(OMIM) | Subsarcolemmal mitochondrial accumulation | 24461907 | IBIS | 4 / 7739 |
Associated genes:
MTFMT; |
ClinVar (via SNiPA)
Gene symbol | Variation | Clinical significance | Reference |
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Additional Information:
Clinical Description OMIM |
Tucker et al. (2011) reported 2 unrelated probands with combined oxidative phosphorylation deficiency. The first patient presented at age 9 years with acquired strabismus and mildly decreased visual acuity. She had a history of mild developmental delay affecting ... |
Molecular genetics OMIM |
In 2 unrelated patients with COXPD15, Tucker et al. (2011) identified compound heterozygosity for 2 mutations in the MTFMT gene (611766.0001-611766.0003). The mutations were identified by next-generation sequencing of coding exons from nuclear-encoded mitochondrial-associated genes. MTFMT activity was ... |