We studied a patient with a severe phenotype carrying two GNB5 variants: c.514delT from the unaffected heterozygous mother and c.628-6G>A from the unaffected homozygous father.
The GRIA3 gene is found on the X chromosome and helps make a part of a brain receptor that is important for learning and memory.
When this gene doesn’t work right, it can cause problems with memory and learning, and it's linked to conditions like epilepsy.
In a specific case, a girl with a serious form of epilepsy had a unique change in the GRIA3 gene, which was found to affect how her cells responded to a brain chemical called glutamate.