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GTR Home > Conditions/Phenotypes > Combined oxidative phosphorylation deficiency 55

Summary

Combined oxidative phosphorylation deficiency-55 (COXPD55) is characterized by global developmental delay, hypotonia, short stature, and impaired intellectual development with speech disabilities in childhood. Indolent progressive external ophthalmoplegia phenotype has been described in 1 patient (summary by Olahova et al., 2021). For a discussion of genetic heterogeneity of combined oxidative phosphorylation deficiency, see COXPD1 (609060). [from OMIM]

Genes See tests for all associated and related genes

  • Also known as: APOLMT, COXPD55, MTRNAP, MTRPOL, h-mtRPOL, POLRMT
    Summary: RNA polymerase mitochondrial

Clinical features

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