OMIA:002137-9615 : Nemaline myopathy, NEB-related in Canis lupus familiaris (dog)
Categories: Muscle phene
Links to MONDO diseases:
Mendelian trait/disorder: yes
Mode of inheritance: Autosomal recessive
Considered a defect: yes
Key variant known: yes
Year key variant first reported: 2016
History: Evans et al. (2016) described "a novel NM [nemaline myopathy] in a family of American bulldogs"
Molecular basis: Evans et al. (2016) reported a likely causal variant, namely "a nonsense mutation in NEB (g.52734272 C>A, S8042X) . . . The pathogenic variant was absent from 120 dogs of 24 other breeds and 100 unrelated ABDs, suggesting that it occurred recently and may be private to the family".
Clinical features: Evans et al. (2016): "Affected dogs could independently ambulate, had generalized atrophy, and the myopathy was relatively non-progressive (Supplemental video). Atrophy of the cervical and dorsal thoracic limb muscles was noted with bilateral hypertrophy of the triceps muscles. Serum creatine kinase (CK) activities were mildly elevated. Electromyography (EMG) revealed spontaneous electrical activity, consisting mainly of fibrillation potentials, within the proximal appendicular muscles of the thoracic limbs and the cervical paraspinal musculature. Motor nerve conduction velocity (MNCV) testing showed a mild decrease in the latency of the tibial and ulnar nerves. Respiratory difficulties were not present."
Breeds in which the phene has been documented. For breeds in which a likely causal variant has been documented, see the variant table below
|Symbol||Description||Species||Chr||Location||OMIA gene details page||Other Links|
|NEB||nebulin||Canis lupus familiaris||-||no genomic information (-..-)||NEB||Homologene, Ensembl , NCBI gene|
By default, variants are sorted chronologically by year of publication, to provide a historical perspective.
Readers can re-sort on any column by clicking on the column header. Click it again to sort in a descending
order. To create a multiple-field sort, hold down Shift while clicking on the second, third etc relevant column
WARNING! Inclusion of a variant in this table does not automatically mean that it should be used for DNA testing. Anyone contemplating the use of any of these variants for DNA testing should examine critically the relevant evidence (especially in breeds other than the breed in which the variant was first described). If it is decided to proceed, the location and orientation of the variant sequence should be checked very carefully.
Since October 2021, OMIA includes a semiautomated lift-over pipeline to facilitate updates of genomic positions to a recent reference genome position. These changes to genomic positions are not always reflected in the ‘acknowledgements’ or ‘verbal description’ fields in this table.
|OMIA Variant ID||Breed(s)||Variant Phenotype||Gene||Allele||Type of Variant||Source of Genetic Variant||Reference Sequence||Chr.||g. or m.||c. or n.||p.||Verbal Description||EVA ID||Inferred EVA rsID||Year Published||PubMed ID(s)||Acknowledgements|
|961||American Bulldog||Nemaline myopathy, NEB-related||NEB||nonsense (stop-gain)||Naturally occurring variant||CanFam3.1||19||g.52734272G>T||p.(S8042*)||NP_001258137.1||2016||27215641|
Cite this entry
|2016||Evans, J.M., Cox, M.L., Huska, J., Li, F., Gaitero, L., Guo, L.T., Casal, M.L., Granzier, H.L., Shelton, G.D., Clark, L.A. :|
|Exome sequencing reveals a nebulin nonsense mutation in a dog model of nemaline myopathy. Mamm Genome 27:495-502, 2016. Pubmed reference: 27215641 . DOI: 10.1007/s00335-016-9644-9.|
- Created by Frank Nicholas on 24 Jan 2018