Molecular targets for ALS and related disorders
Provided herein are compositions and methods for diagnosis, risk assessment, research, and therapy related to amyotrophic lateral sclerosis (ALS) and ALS-related disorders. In particular, the present invention relates to mutations in the UBQLN2 gene that cause dominantly inherited chromosome X-linked ALS and ALS/dementia.
1. A method of detecting a mutation in a UBQLN2 nucleic acid in a human sample, comprising:
(a) contacting a UBQLN2 nucleic acid in a human sample with an oligonucleotide that specifically hybridizes to one or more missense mutations in a UBQLN2 nucleic acid, wherein the one or more missense mutations results in a substitution of a proline in the 12 P-X-X tandem repeats encoded by the UBQLN2 gene; and
(b) detecting hybridization of the oligonucleotide with the UBQLN2 nucleic acid under specific hybridization conditions, wherein detection of hybridization is indicative of a mutation in the UBQLN2 nucleic acid.
2. The method of claim 1 , wherein said human sample comprises a cell, secretion, blood, or fraction thereof.
3. The method of claim 1 , wherein the one or more missense mutations are selected from: c.1490C>A, c.1489C>T, c.1516C>A, c.1525C>T, and c.1573C>T[H].
4. A method of detecting a mutation in a UBQLN2 nucleic acid in a human sample, comprising:
(a) contacting a UBQLN2 nucleic acid in a human sample with an oligonucleotide that specifically hybridizes to one or more missense mutations in a UBQLN2 nucleic acid, wherein the one or more missense mutations is selected from: c.1490C>A, c.1489C>T, c.1516C>A, c.1525C>T, and c.1573C>T; and
(b) detecting hybridization of the oligonucleotide with the UBQLN2 nucleic acid under specific hybridization conditions, wherein detection of hybridization is indicative of a mutation in the UBQLN2 nucleic acid.