Table 1. PCR product size in base pairs for exons 7, 11, and 12 of the phenylalanine hydroxylase gene, mutation, endonuclease used, and fragments generated in base pairs.

Exon	PCR product	Mutations	Endonuclease	Fragment(s) after digestion - wild	Fragment(s) (bp) after digestion - mutated
7	263	R261Q a	HinfI	116/147	263
		R252W a	Aval	86/177	263
		R261X b	DdelI	263	115/148
11	301	V388M a	BsaAI	114/187	301
		IVS10nt-11G>A b	DdelI	301	78/223
12	238	R408W b	Styl	238	97/141

^adestroys restriction site; ^bcreates restriction site.