Mondo Description Any nemaline myopathy in which the cause of the disease is a mutation in the KLHL41 gene.

Uniprot Description An autosomal recessive form of nemaline myopathy. Nemaline myopathies are muscular disorders characterized by muscle weakness of varying severity and onset, and abnormal thread-like or rod-shaped structures in muscle fibers on histologic examination. NEM9 phenotype is highly variable, ranging from death in infancy due to lack of antigravity movements, to slowly progressive distal muscle weakness with preserved ambulation later in childhood.

Disease Ontology Description A nemaline myopathy characterized by onset in early infancy of muscle weakness with variable severity that has_material_basis_in homozygous or compound heterozygous mutation in the KLHL41 gene on chromosome 2q31.