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J Child Neurol. 2016 Feb;31(2):211-4. doi: 10.1177/0883073815587945. Epub 2015 Jun 9.

Progressive Movement Disorder in Brothers Carrying a GNAO1 Mutation Responsive to Deep Brain Stimulation.

Author information

1
Phoenix Children's Hospital, Phoenix, AZ, USA neilkulkarni5@gmail.com.
2
Ambry Genetics, Aliso Viejo, CA 92656.
3
Phoenix Children's Hospital, Phoenix, AZ, USA.

Abstract

GNAO1, located on chromosome 16q12.2, encodes for 1 of the heterotrimeric guanine binding proteins subunits (G proteins), specifically Gαo, which has been implicated as having an important role in brain function. GNAO1 mutations have been shown to impart oncogene properties as well as cause epileptic encephalopathy. The authors report 2 cases of brothers with a severe movement disorder and hypotonia without epilepsy who have been confirmed by whole exome sequencing to have a novel mutation in GNAO1. Their movement disorder improved significantly with deep brain stimulation.

KEYWORDS:

GNA01 mutations; deep brain stimulation; epileptic encephalopathy; movement disorders; whole exome sequencing

PMID:
26060304
DOI:
10.1177/0883073815587945
[Indexed for MEDLINE]

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