U.S. flag

An official website of the United States government

GTR Home > Conditions/Phenotypes > Mitochondrial dna depletion syndrome 16B (neuroophthalmic type)

Summary

Mitochondrial DNA depletion syndrome-16B (MTDPS16B) is an autosomal recessive childhood-onset and progressive neuroophthalmic mtDNA depletion disorder characterized by optic atrophy, mixed polyneuropathy, spinal and cerebellar ataxia, and generalized chorea (Dosekova et al., 2020). [from OMIM]

Available tests

5 tests are in the database for this condition.

Genes See tests for all associated and related genes

  • Also known as: HP55, MTDPS16, MTDPS16A, MTDPS16B, MTPOLB, PEOA4, POLB, POLG-BETA, POLGB, POLG2
    Summary: DNA polymerase gamma 2, accessory subunit

Clinical features

Help

Show allHide all

IMPORTANT NOTE: NIH does not independently verify information submitted to the GTR; it relies on submitters to provide information that is accurate and not misleading. NIH makes no endorsements of tests or laboratories listed in the GTR. GTR is not a substitute for medical advice. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.