N-Glycanase 1 Deficiency

NGLY1 deficiency is a complex neurological syndrome resulting from a shortage of the enzyme N-glycanase 1. This enzyme assists in the removal of dysfunctional proteins from the body. Symptoms and severity of this disorder can vary dramatically among affected individuals and have been reported to include developmental delays, movement disorder, weak muscle tone, liver abnormalities, seizures and an inability to produce tears.

NGLY1 deficiency is the first known congenital disorder of deglycosylation (CDDG), as opposed to other known congenital disorders of glycosylation (CDGs). The disorder is inherited in an autosomal recessive genetic manner, meaning that a child is affected when each parent passes on one copy of the mutated gene.

Learn about disease research and treatment discovery efforts for NGLY1 .

Resources: Genetic and Rare Disease Information Center ; NORD

The following organizations may be a resource for information and support for people with NGLY1 Deficiency and those around them: is a patient-run, 501(c)(3) non-profit organization that aims to educate clinicians, researchers, and the public on NGLY1 deficiency, identify NGLY1 patients and foster a supportive community, and fund the science to understand, treat and cure NGLY1 deficiency.

Global Genes

Global Genes is a non-profit patient advocacy organization working to eliminate the challenges of rare disease by building awareness, educating the global community, and providing critical connections and resources that equip advocates to become activists for their disease.  Global Genes promotes the needs of the rare disease community under a unifying symbol of hope – the Blue Denim Genes Ribbon™. Numerous tools, resources and educational events can be found on the Global Genes website

National Organization for Rare Disorders

The National Organization for Rare Disorders (NORD) is a unique federation of voluntary health organizations dedicated to helping people with rare "orphan" diseases and assisting the organizations that serve them. NORD is committed to the identification, treatment and cure of rare disorders through programs of education, advocacy, research and service. In the US, NORD is also the official sponsor of Rare Disease Day, an annual global observance that raises awareness of rare diseases and elevates them into the public consciousness as an important health issue that cannot be ignored.


EURORDIS is a non-governmental patient-driven alliance of more than 700 rare disease patient organisations in more than 60 countries. EURORDIS strives to build a strong pan-European community of patient organisations and people living with a rare disease, to be their voice at the European level, and - directly or indirectly - to fight against the impact of rare diseases on their lives. EURORDIS leads global efforts for Rare Disease Day and the online social platform for people living with or affected by a rare diseases RareConnect. EURORDIS represents the voice of an estimated 30 million people living with a rare disease in Europe. Follow @eurordis or see the EURORDIS Facebook page. For more information visit:

Grace Science Foundation

Kristen and Matt Wilsey founded the Grace Science Foundation when their daughter Grace was diagnosed with a rare genetic disease called NGLY1 deficiency. This complex and devastating neuromuscular disease affected less than 5 known patients worldwide at the time. Very few resources existed that were devoted to NGLY1 deficiency, either in terms of funding, public awareness, active research, or existing knowledge. Undeterred, the Wilseys decided to apply their passion and entrepreneurial spirits to finding a cure for Grace and other NGLY1 deficiency patients. Over the last 6+ years, the foundation has assembled a world-class team of 75 scientists across 20 teams in the United States, Canada, Japan, and Germany. They work not only to understand the disease and develop a cure, but also to drive innovations in the world of genetic research in general. Their work has been featured by, the San Francisco Chronicle, Der Spiegel, and the New Yorker. To learn more, please visit