Figure 1.
Phenotypic heterogeneity in NPC1 individuals homozygous for the p.I1061T (c.T3182C) variant. (A) Age of neurological onset in eight NPC1I1061T/I1061T individuals. NPC90 and NPC91 are full siblings. (B) Annual Severity Increment Scores in these same eight NPC1I1061T/I1061T individuals. (C) Longitudinal progression of the 17-domain NPC Neurological Severity Score in these eight NPC1I1061T/I1061T individuals. * siblings.
