Show pagesourceOld revisionsBacklinksBack to top Share via Share via... Twitter LinkedIn Facebook Pinterest Telegram WhatsApp Yammer Reddit TeamsRecent ChangesSend via e-MailPrintPermalink × Table of Contents Main Features Eye Findings Other Findings Etiology Resources HNRNPU-related disorder Main Features Developmental Delay especially speech Seizures Eye Findings Esotropia 30% Other Findings Abnormal facial features Hypotonia Autism Etiology Mutations in the HNRNPU gene- 1q44 Autosomal Dominant Resources NORD reference page syndrome syndrome