Fig. 3

Partial DNA sequence chromatograms of FARS2. The red arrows represent the location of the variants c.925G>A and c.943G>C. A Heterozygous variant c.925G>A identified in this proband. B Heterozygous variant c.925G>A identified in the father. C Heterozygous variant c.925G>A identified in the elder sister. D Normal DNA sequence of the mother. E Heterozygous variant c.943G>C identified in this proband. F Heterozygous variant c.943G>C identified in the mother. G Heterozygous variant c.943G>C identified in the elder sister. H Normal DNA sequence of the father