Skip Header

You are using a version of browser that may not display all the features of this website. Please consider upgrading your browser.


An autosomal recessive disorder characterized by variable skeletal abnormalities and neurodevelopmental defects. Neurologic manifestations include intellectual disability and motor delay. Some patients manifest hypotonia and seizures. Skeletal features include disproportionate short stature, cervical malformations, epiphyseal and metaphyseal dysplasia, and rarely premature craniosynostosis with progressive microcephaly. Severe combined immunodeficiency with a complete absence of T cells is observed in some patients.




Mental retardation


Any medical or genetic information present in this entry is provided for research, educational and informational purposes only. It is not in any way intended to be used as a substitute for professional medical advice, diagnosis, treatment or care. Our staff consists of biologists and biochemists that are not trained to give medical advice.

We'd like to inform you that we have updated our Privacy Notice to comply with Europe’s new General Data Protection Regulation (GDPR) that applies since 25 May 2018.

Do not show this banner again
UniProt is an ELIXIR core data resource
Main funding by: National Institutes of Health