U.S. flag

An official website of the United States government

GTR Home > Conditions/Phenotypes > Syndromic X-linked intellectual disability Hedera type

Summary

The Hedera type of X-linked syndromic intellectual developmental disorder (MRXSH) is characterized by global developmental delay apparent from infancy and progressive neurologic decline with abnormal movements, spasticity, and seizures. Brain imaging shows volume loss of cortical white and gray matter, thin corpus callosum, and myelination defects, consistent with a neurodegenerative process. Only males are affected (summary by Hirose et al., 2019). [from OMIM]

Available tests

34 tests are in the database for this condition.

Check Related conditions for additional relevant tests.

Genes See tests for all associated and related genes

  • Also known as: (P)RR, APT6M8-9, ATP6IP2, ATP6M8-9, CDG2R, ELDF10, HT028, M8-9, MRXE, MRXSH, MSTP009, PRR, RENR, XMRE, XPDS, ATP6AP2
    Summary: ATPase H+ transporting accessory protein 2

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.