HSPB1 and Charcot-Marie-Tooth disease type 2: In this study, we conducted an extensive survey for the mutations in the MFN2, RAB7, TRPV4, GARS, NEFL, HSPB1, MPZ, GDAP1, HSPB8, DNM2, AARS and YARS genes in 36 unrelated patients with CMT2 and identified 10 different mutations in 14 patients (10/36; 38.9% of our cohort).