[Figure 7B]: The IVS12–1 G>A (g79306a) mutation weakens this site almost identically. Two cryptic acceptor sites are created at the same locations, 1 and 8 bp downstream of the native. However, only the first one, at +1 (79307), is strong enough to be functional. As with the previous case, a one-nucleotide deletion was probably below the detection capabilities of the transcript analysis.