chromosome	gene symbol	phenotype
13q12	SACS sacsin	Spastic ataxia, Charlevoix-Saguenay type -SACS Autosomal recessive spastic ataxia of Charlevoix-Saguenay -ARSACS
13q12	SGCG gamma sarcoglycan	Muscular dystrophy, limb-girdle, type 2C -LGMD2C
13q12.2-q13.3	SUCLA2 succinate-CoA ligase, ADP-forming, beta subunit	Mitochondrial dna depletion syndrome, myopathic form -MDDS4
13q12.3	SPG20 spartin	Spastic paraplegia 20 -SPG20
13q14	?	Spastic paraplegia 24 -SPG24
13q21	ATXN8OS ataxin 8 opposite strand	Spinocerebellar ataxia 8 -SCA8
13q34	FGF14 fibroblast growth factor 14	Spinocerebellar ataxia 27 -SCA27