RAB32 Ser71Arg in Chinese patients with Parkinson’s disease

The RAB32 Ser71Arg variant has been identified as a novel risk locus for Parkinson’s disease (PD) in North American, European and North African populations. However, its pathogenicity in Asian populations remains unclear.

To investigate this, we screened for the RAB32 c.213C > G (Ser71Arg) variant using Sanger sequencing in 1,099 PD patients and 1,549 controls. And we search for the RAB32 Ser71Arg variant in public databases to identified its mutant frequency.

Our results show that no individuals carrying the RAB32 Ser71Arg variant were identified in our cohort. Additionally, this variant rarely appears in Asian population databases.

Our findings suggest that the RAB32 Ser71Arg variant is unlikely to be a risk locus for PD in Chinese patients, which is potentially attributed to racial or ethnic differences.