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. 2006 Apr 5;7:35. doi: 10.1186/1471-2350-7-35

Figure 1.

Figure 1

Mutation in the RP1 gene due to nucleotide substitution. A. Pedigree, restriction analysis, and direct sequencing of Spanish families showing the R677X mutation. The 2177 C→T substitution abolishes the TaqI restriction site. M is the DNA marker consisting of a 100 bp ladder and U/D is the undigested DNA PCR fragment. B. Pedigree, DGGE and direct sequencing of the family carrying the Q686X mutation in the RP1 gene. Affected individuals, asymptomatic carriers and non-carriers of the mutation are represented by solid symbols, symbols with an internal dot and open symbols, respectively.