Mitochondrial tRNA-Lys Variants

Test Background

Mutations at the nucleotide position 8296, 8344, 8356, and 8363 of the mitochondrial tRNALys gene have been found in some patients with MERRF (myoclonic epilepsy with ragged-red fibers) and sensorineural hearing loss (SNHL). Among these syndromic SNHL-causing mutations, M.8344A>G is the most common mutation found in patients with MERRF or MERRF with deafness. This test does not rule out the possibility of low-level heteroplasmy for these mutations, or some other mitochondrial mutations. This laboratory performs targeted mutation analysis.

About Claritas

Claritas Genomics serves children affected with complex genetic disorders by providing timely and accurate results, resolving families’ long search for answers. By combining clinical expertise of the world’s best pediatric specialists with innovative platform solutions, Claritas is working to improve patient care and enable new discoveries. We are committed to the highest quality and accessibility of information and our interpretive services and unique approach to reporting set the standard for reliably and clearly communicating genetic information.

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