Protein affected in spinocerebellar ataxia type 6: (A) Ataxin, (B) a1A-Voltage-dependent calcium channel subunit, (C) Atrophin, (D) Androgen receptor
Answer is B. Ans. (b) a1A-Voltage-dependent calcium channel subunit(Ref: 19tha/pg 451)Spinocerebellar ataxia type 6 is due to CACNA2A gene on chromosome 19pl3.3, which codes for a1A-Voltage- dependent calcium channel subunit protein.