Fig. 7From: X-linked recessive ichthyosis in 8 Tunisian patients: awareness of misdiagnosis due to the technical trap of the STS pseudogeneStructure of the STS gene versus the STSP1 pseudogene on the Y chromosome showing approximate similarity between the two genes. High sequence similarity between exon 2 of STSP1 and exons 3 and 4 of the STS gene, and no similarity of exons 1, 7, 8 and 10 of the STS gene with STSP1Back to article page