SH3TC2
Involvement in disease
Charcot-Marie-Tooth disease 4C
CMT4C
A recessive demyelinating form of Charcot-Marie-Tooth disease, a disorder of the peripheral nervous system, characterized by progressive weakness and atrophy, initially of the peroneal muscles and later of the distal muscles of the arms. Charcot-Marie-Tooth disease is classified in two main groups on the basis of electrophysiologic properties and histopathology: primary peripheral demyelinating neuropathies (designated CMT1 when they are dominantly inherited) and primary peripheral axonal neuropathies (CMT2). Demyelinating neuropathies are characterized by severely reduced nerve conduction velocities (less than 38 m/sec), segmental demyelination and remyelination with onion bulb formations on nerve biopsy, slowly progressive distal muscle atrophy and weakness, absent deep tendon reflexes, and hollow feet. By convention autosomal recessive forms of demyelinating Charcot-Marie-Tooth disease are designated CMT4. CMT4C is characterized by onset in childhood, early-onset scoliosis and a distinct Schwann cell pathology.
None
The disease is caused by variants affecting the gene represented in this entry.
Mononeuropathy of the median nerve mild
MNMN
A disease characterized by median nerve mononeuropathy at the wrist. The clinical presentation ranges from a mild phenotype, consistent with carpal tunnel syndrome, to a severe median nerve mononeuropathy at the wrist associated with evidence of a more widespread axonal polyneuropathy. The latter phenotype is similar to that of patients with hereditary neuropathy with liability to pressure palsies.
None
The disease is caused by variants affecting the gene represented in this entry.
Tissue Specificity
Strongly expressed in brain and spinal cord. Expressed at equal level in spinal cord and sciatic nerve. Weakly expressed in striated muscle.
Alternative names
KIAA1985, PP12494, SH3TC2, SH3 domain and tetratricopeptide repeat-containing protein 2