MCT8 deficiency in a patient with a novel frameshift variant in the SLC16A2 gene
Open Access
- 16 February 2021
- journal article
- research article
- Published by Springer Science and Business Media LLC in Human Genome Variation
- Vol. 8 (1), 1-3
- https://doi.org/10.1038/s41439-021-00142-0
Abstract
MCT8 deficiency is an X-linked recessive disorder. We report the case of a 2-year-old Japanese boy with MCT8 deficiency caused by a novel frameshift variant, NM_006517.5(SLC16A2_v001):c.966dup [p.(Ile323Hisfs*57)]. He presented no head control and spoke no meaningful words, indicating severe developmental delay. Although missense or in-frame mutations of SLC16A2 are usually related to milder phenotypes and later-onset pyramidal signs, loss-of-function mutations are expected to cause severe clinical symptoms.Keywords
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