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Segregation of GJA12 mutations (RFLP analysis). In family 2 (f2), the affected boy was compound heterozygous, carrying the paternal c.268C→T missense mutation and the maternal c.989delC frameshift deletion. In family 3 (f3), the affected boy carried the paternal c.718C→T nonsense mutation and the maternal c.814T→G missense mutation. Family numbers correspond to those in table 1. co = control; f1–f3 = families 1–3; mut = mutated GJA12; wt = wild-type GJA12.
