Synonyms: CDG syndrome type Im | CDG-Im | CDG1M | Carbohydrate deficient glycoprotein syndrome type Im | Congenital disorder of glycosylation type 1m | Congenital disorder of glycosylation type Im | Dolichol kinase deficiency | Hypotonia and ichthyosis due to dolichol phosphate deficiency
DK1-CDG is characterised by muscular hypotonia and ichthyosis. It has been described in four children from two consanguineous families. All the affected children died during early infancy two from dilated cardiomyopathy. The syndrome is caused by a deficiency in dolichol kinase 1 (DK1) an enzyme involved in the de novo biosynthesis of dolichol phosphate. The mutations identified in the DK1 gene led to a 96 to 98% reduction in DK activity.
Data from Orphanet are used to provide information on a disease's name, synonym(s), and overview. Reference: Access aggregated data from Orphanet at Orphadata. Orphadata: Free access data from Orphanet. © INSERM 1999. Available on http://www.orphadata.org. Data version February 2026
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DK1-CDG?
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Advocacy Organizations
CDG CARE
Our mission is to promote greater awareness and understanding of CDG, to provide information and support to families affected by CDG, and to advocate for and fund scientific research to advance the diagnosis and treatment of CDG.
CDG Canada
CDG Canada supports patients and families affected by Congenital Disorders of Glycosylation (CDG).
Children’s Cardiomyopathy Foundation
CCF's mission is to accelerate the search for causes and cures for pediatric cardiomyopathy through increased research, education, awareness, advocacy, and support to affected children and their families.
Heart of a Giant Foundation
The mission of the HGF is to achieve better health outcomes for heart diseases and related chronic health conditions in our communities and enhance the quality of life through health education, care support, and connection to community resources.
HeartCharged
Ending preventable deaths from undiagnosed heart conditions and sudden cardiac arrest, especially in young people, and providing patient-to-patient support.
Louisiana Metabolic Disorders Coalition
We support, educate, and advocate for patients & families affected by metabolic disorders.
Mississippi Metabolics Foundation
Our mission at Mississippi Metabolics Foundation (MMF) is to advocate, educate, and support families in MS affected by genetic metabolic disorders/inborn errors of metabolism (IEM's). MMF promotes initiatives and further advancements in legislation, education, research, clinical trials, studies, therapies, targeted treatments, and eventual cures for IEM’s and all rare diseases.
RareDNA Foundation
Dedicated to improving outcomes for individuals and families affected by rare DNA heart mutations by advancing awareness, access and action. We increase awareness among medical professionals and the public, provide education and resources on diagnosis and treatment, support scientific research, and advocate for faster diagnostic pathways, giving families the knowledge and care they need.
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Clinical Trials
For a list of clinical trials in this disease area, please click here.