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Disease Profile

DPM1-CDG (CDG-Ie)

Prevalence
Prevalence estimates on Rare Medical Network websites are calculated based on data available from numerous sources, including US and European government statistics, the NIH, Orphanet, and published epidemiologic studies. Rare disease population data is recognized to be highly variable, and based on a wide variety of source data and methodologies, so the prevalence data on this site should be assumed to be estimated and cannot be considered to be absolutely correct.
<1 / 1 000 000

< 331

US Estimated

< 514

Europe Estimated

Age of onset

Infancy

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ICD-10

E77.8

Inheritance

Autosomal dominant A pathogenic variant in only one gene copy in each cell is sufficient to cause an autosomal dominant disease

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Autosomal recessive Pathogenic variants in both copies of each gene of the chromosome are needed to cause an autosomal recessive disease and observe the mutant phenotype

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X-linked
dominant X-linked dominant inheritance, sometimes referred to as X-linked dominance, is a mode of genetic inheritance by which a dominant gene is carried on the X chromosome.

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X-linked
recessive Pathogenic variants in both copies of a gene on the X chromosome cause an X-linked recessive disorder

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Mitochondrial or multigenic Mitochondrial genetic disorders can be caused by changes (mutations) in either the mitochondrial DNA or nuclear DNA that lead to dysfunction of the mitochondria and inadequate production of energy.

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Multigenic or multifactor Inheritance involving many factors, of which at least one is genetic but none is of overwhelming importance, as in the causation of a disease by multiple genetic and environmental factors.

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Not applicable

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Other names (AKA)

CDG 1E; CDG1E; Carbohydrate-deficient glycoprotein syndrome type 1E;

Categories

Congenital and Genetic Diseases; Metabolic disorders; Nervous System Diseases

Summary

The following summary is from Orphanet, a European reference portal for information on rare diseases and orphan drugs.
orphanet

Orpha Number: 79322

Definition
The CDG (Congenital Disorders of Glycosylation) syndromes are a group of autosomal recessive disorders affecting glycoprotein synthesis. CDG syndrome type Ie is characterised by psychomotor delay, seizures, hypotonia, facial dysmorphism and microcephaly. Ocular anomalies are also very common.

Epidemiology
The syndrome has been described in seven children.

Etiology
It is caused by mutations in the DPM gene (localised to the q13.13 region of chromosome 20) leading to a deficiency in the endoplasmic reticulum enzyme dolichol-P-mannose synthase 1.

Visit the Orphanet disease page for more resources.

Symptoms

This table lists symptoms that people with this disease may have. For most diseases, symptoms will vary from person to person. People with the same disease may not have all the symptoms listed. This information comes from a database called the Human Phenotype Ontology (HPO) . The HPO collects information on symptoms that have been described in medical resources. The HPO is updated regularly. Use the HPO ID to access more in-depth information about a symptom.

Medical Terms Other Names
Learn More:
HPO ID
80%-99% of people have these symptoms
Abnormality of vision
Abnormality of sight
Vision issue

[ more ]

0000504
Microcephaly
Abnormally small skull
Decreased circumference of cranium
Decreased size of skull
Reduced head circumference
Small head circumference

[ more ]

0000252
Muscular hypotonia
Low or weak muscle tone
0001252
Seizure
0001250
Severe global developmental delay
0011344
Percent of people who have these symptoms is not available through HPO
Abnormal macular morphology
0001103
Ankle flexion contracture
0006466
Ataxia
0001251
Autosomal recessive inheritance
0000007
Camptodactyly
Permanent flexion of the finger or toe
0012385
Cerebral visual impairment
0100704
Depressed nasal bridge
Depressed bridge of nose
Flat bridge of nose
Flat nasal bridge
Flat, nasal bridge
Flattened nasal bridge
Low nasal bridge
Low nasal root

[ more ]

0005280
Downslanted palpebral fissures
Downward slanting of the opening between the eyelids
0000494
EEG abnormality
0002353
Elevated serum creatine kinase
Elevated blood creatine phosphokinase
Elevated circulating creatine phosphokinase
Elevated creatine kinase
Elevated serum CPK
Elevated serum creatine phosphokinase
High serum creatine kinase
Increased CPK
Increased creatine kinase
Increased creatine phosphokinase
Increased serum CK
Increased serum creatine kinase
Increased serum creatine phosphokinase

[ more ]

0003236
Failure to thrive
Faltering weight
Weight faltering

[ more ]

0001508
Flat occiput
0005469
Generalized hypotonia
Decreased muscle tone
Low muscle tone

[ more ]

0001290
Hemangioma
Strawberry mark
0001028
Hepatomegaly
Enlarged liver
0002240
High, narrow palate
Narrow, high-arched roof of mouth
Narrow, highly arched roof of mouth

[ more ]

0002705
Hypertelorism
Wide-set eyes
Widely spaced eyes

[ more ]

0000316
Infantile onset
Onset in first year of life
Onset in infancy

[ more ]

0003593
Knee flexion contracture
0006380
Lower limb hyperreflexia
Overactive lower leg reflex
0002395
Micrognathia
Little lower jaw
Small jaw
Small lower jaw

[ more ]

0000347
Muscular dystrophy
0003560
Nail dysplasia
Atypical nail growth
0002164
Nystagmus
Involuntary, rapid, rhythmic eye movements
0000639
Optic atrophy
0000648
Patent ductus arteriosus
0001643
Pontocerebellar atrophy
0006879
Postnatal microcephaly
0005484
Progressive
Worsens with time
0003676
Prolonged partial thromboplastin time
0003645
Reduced antithrombin III activity
0001976
Reduced protein C activity
0005543
Reduced protein S activity
0004855
Respiratory distress
Breathing difficulties
Difficulty breathing

[ more ]

0002098
Retinopathy
Noninflammatory retina disease
0000488
Short palm
0004279
Small hand
Disproportionately small hands
0200055
Smooth philtrum
0000319
Splenomegaly
Increased spleen size
0001744
Strabismus
Cross-eyed
Squint
Squint eyes

[ more ]

0000486
Telangiectasia
0001009
Tremor
0001337
Type I transferrin isoform profile
0003642
Upper limb undergrowth
Short arms
Shortening of the arms

[ more ]

0009824
Variable expressivity
0003828

Diagnosis

Making a diagnosis for a genetic or rare disease can often be challenging. Healthcare professionals typically look at a person’s medical history, symptoms, physical exam, and laboratory test results in order to make a diagnosis. The following resources provide information relating to diagnosis and testing for this condition. If you have questions about getting a diagnosis, you should contact a healthcare professional.

Testing Resources

  • The Genetic Testing Registry (GTR) provides information about the genetic tests for this condition. The intended audience for the GTR is health care providers and researchers. Patients and consumers with specific questions about a genetic test should contact a health care provider or a genetics professional.

    Organizations

    Support and advocacy groups can help you connect with other patients and families, and they can provide valuable services. Many develop patient-centered information and are the driving force behind research for better treatments and possible cures. They can direct you to research, resources, and services. Many organizations also have experts who serve as medical advisors or provide lists of doctors/clinics. Visit the group’s website or contact them to learn about the services they offer. Inclusion on this list is not an endorsement by GARD.

    Organizations Supporting this Disease

      Social Networking Websites

      • RareConnect has an online community for patients and families with this condition so they can connect with others and share their experiences living with a rare disease. The project is a joint collaboration between EURORDIS (European Rare Disease Organisation) and NORD (National Organization for Rare Disorders).

        Learn more

        These resources provide more information about this condition or associated symptoms. The in-depth resources contain medical and scientific language that may be hard to understand. You may want to review these resources with a medical professional.

        In-Depth Information

        • The Monarch Initiative brings together data about this condition from humans and other species to help physicians and biomedical researchers. Monarch’s tools are designed to make it easier to compare the signs and symptoms (phenotypes) of different diseases and discover common features. This initiative is a collaboration between several academic institutions across the world and is funded by the National Institutes of Health. Visit the website to explore the biology of this condition.
        • Online Mendelian Inheritance in Man (OMIM) is a catalog of human genes and genetic disorders. Each entry has a summary of related medical articles. It is meant for health care professionals and researchers. OMIM is maintained by Johns Hopkins University School of Medicine. 
        • Orphanet is a European reference portal for information on rare diseases and orphan drugs. Access to this database is free of charge.
        • PubMed is a searchable database of medical literature and lists journal articles that discuss DPM1-CDG (CDG-Ie). Click on the link to view a sample search on this topic.