FGF14 and nervous system disorder: This finding led us to analyze FGF14 alleles in a total of 1007 individuals, including 169 patients from 148 independent families with cerebellar ataxia of unknown cause, 32 patients with other neurological disorders, 4 healthy family members and 802 control subjects, using a combination of long-range PCR, fluorescent gene fragment analysis and targeted nanopore sequencing.