HSPB1 and distal hereditary motor neuropathy: Together with five families harboring the reported c.941A>G (p.D341G) in WARS, c.757delG (p.A253Qfs*27) in SORD, c.151+1G>T (p.31_50del) in SIGMAR1, and c.539C>T (p.T180I) in HSPB1, the genetic diagnosis rate was 29.2% (7/24) in our Chinese dHMN families (Figure 2A).