Figure 2From: Molecular characterization of Tunisian families with abetalipoproteinemia and identification of a novel mutation in MTTP genePedigree of Family D. The proband is indicated by the arrow. Subject homozygote for the MTP gene mutation (c.923 G > A) is indicated by close symbol; heterozygous carriers are indicated by half-shaded symbols. Family member not available for the study is indicated by an asterisk.Back to article page