Desmin

IgG

Human

Heart muscle smooth and skeletal muscle leiomyoma and rhabdomyomas

Cytoplasmic

PBS pH7. 2 containing 0. 2% BSA and 0. 1% sodium azide

Cytoplasmic Desmin is the main intermediate filament in mature skeletal cardiac and smooth muscle cells.

Homopolymer.

Defects in DES are the cause of desmin-related cardio-skeletal myopathy (CSM) [MIM:601419]; also known as desmin-related myopathy (DRM). CSM is characterized by skeletal muscle weakness associated with cardiac conduction blocks arrhythmias restrictive heart failure and by intracytoplasmic accumulation of desmin-reactive deposits in cardiac and skeletal muscle cells. A desmin-related myopathy can have a distal onset it is then known as hereditary distal myopathy (HDM).

Defects in DES are the cause of neurogenic scapuloperoneal syndrome Kaeser type (Kaeser syndrome) [MIM:181400]. Kaeser syndrome is an autosomal dominant disorder with a peculiar scapuloperoneal distribution of weakness and atrophy. A large clinical variability is observed ranging from scapuloperoneal limb grindle and distal phenotypes with variable cardiac or respiratory involvement. Facial weakness dysphagia and gynaecomastia are frequent additional symptoms. Affected men seemingly bear a higher risk of sudden cardiac death as compared to affected women. Histological and immunohistochemical examination of muscle biopsy specimens reveal a wide spectrum of findings ranging from near normal or unspecific pathology to typical myofibrillar changes with accumulation of desmin.