We thank the reviewer for this comment. Indeed, there were many long sentences and the abstract did not capture all of our findings. We have rewritten the abstract to accommodate the reviewer’s suggestions. The abstract is now 311 words long (almost 40 words shorter than the original abstract), has shorter sentences, and includes some summary of the findings reported in all the main figures.
The abstract now reads as follows: GRIN2B mutations are rare but often associated with patients having severe neurodevelopmental disorders, including a varying range of symptoms such as intellectual disability, developmental delay and epilepsy.