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Combined oxidative phosphorylation deficiency 44

Summary

Combined oxidative phosphorylation deficiency-44 (COXPD44) is an autosomal recessive mitochondrial disorder with multisystemic manifestations. Most affected individuals present in infancy or early childhood with global developmental delay, hypotonia, and abnormal movements. Most patients develop seizures, often associated with status epilepticus, and some patients may have optic atrophy. One patient with hypertrophic cardiomyopathy has been reported. Serum lactate may be increased, although that finding is inconsistent. Detailed biochemical analysis shows variable combined deficiencies of mitochondrial oxidative complexes that appear to be tissue-specific (summary by Wei et al., 2020). For discussion of genetic heterogeneity of combined oxidative phosphorylation deficiency, see COXPD1 (609060). [from OMIM]

Available tests

14 tests are in the database for this condition.

Clinical tests (14 available)

Molecular Genetics Tests

Genes See tests for all associated and related genes

  • Also known as: COXPD44, KIAA0971, FASTKD2
    Summary: FAST kinase domains 2

Clinical features

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Imported from Human Phenotype Ontology (HPO)

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