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Molecular assay reagents intended to identify mutations in the aprataxin (APTX) gene, located at chromosome 9p13.3, which encodes for a member of the histidine triad (HIT) superfamily, whose members have nucleotide-binding and diadenosine polyphosphate hydrolase activities. This gene is probably involved in the repair of or response to DNA single-strand breaks. Mutations at this locus have been identified in patients with early-onset ataxia with oculomotor apraxia type 1 (AOA1) syndrome and hypoalbuminemia.
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