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Any Charcot-Marie-Tooth disease type 2 in which the cause of the disease is a mutation in the TRIM2 gene.
Features include always present findings: Decreased motor nerve conduction velocity, Delayed ability to walk, Pes cavus, and Low muscle tone (hypotonia) and others. 18 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Muscles | 5 | Decreased muscle mass, Low muscle tone (hypotonia), Knee flexion contracture |
Brain and nerves | 3 | Peripheral axonal neuropathy, Broad-based gait, Inability to walk |
Lungs and breathing | 1 | Difficulty breathing (respiratory insufficiency) |
Arms and legs | 1 | Intrinsic hand muscle atrophy |
TRIM2 function has not been fully characterized.
Charcot-Marie-Tooth disease type 2R is associated with mutations in the TRIM2 gene on chromosome 4.
Genetic testing for TRIM2 is available. Testing is considered confirmatory for diagnosis.
Phenotype severity distribution: 7 always present features.
Estimated prevalence: <1 in 1,000,000 (VERY_RARE).
1 clinical trial registered, 1 recruiting. Interventions under study include other interventions. Research is primarily sponsored by academic and government institutions.
1 publication has been identified in PubMed for Charcot-Marie-Tooth disease type 2R. Research spans Case Report / Case Series (100%).
Du N (2024). [PMID: 38835974](https://pubmed.ncbi.nlm.nih.gov/38835974/). *The application of clinical genetics*. [Case Report / Case Series]
Data assembled from 7 of 12 sources · Last updated Sep 20, 2026, 11:22 AM UTC
Online Mendelian Inheritance in Man
European rare disease database
Genetic and Rare Diseases Info Center
Common questions about Charcot-Marie-Tooth disease type 2R