Systematic Linkage Disequilibrium Analysis of SLC12A8 at PSORS5 Confirms a Role in Susceptibility to Psoriasis Vulgaris  Ulrike Hüffmeier, Jesús Lascorz,

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Systematic Linkage Disequilibrium Analysis of SLC12A8 at PSORS5 Confirms a Role in Susceptibility to Psoriasis Vulgaris  Ulrike Hüffmeier, Jesús Lascorz, Heiko Traupe, Beate Böhm, Funda Schürmeier-Horst, Markward Ständer, Reinhard Kelsch, Claudia Baumann, Wolfgang Küster, Harald Burkhardt, André Reis  Journal of Investigative Dermatology  Volume 125, Issue 5, Pages 906-912 (November 2005) DOI: 10.1111/j.0022-202X.2005.23847.x Copyright © 2005 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 1 Results of the χ2 statistics for the 35 tag single nucleotide polymorphism in SLC12A8 (compared with controls). The horizontal line indicates the significance level of p<0.05. Curly braces indicate affiliation to a haplotype block. Journal of Investigative Dermatology 2005 125, 906-912DOI: (10.1111/j.0022-202X.2005.23847.x) Copyright © 2005 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 2 Linkage disequilibrium (LD) structure of genomic region including SLC12A8. (a) Exon structure of SLC12A8. 5′ and 3′ untranslated regions are indicated as thinner blocks. Nine haplotype blocks (5′ and from A to H). (b) Pairwise LD plot for the 68 single nucleotide polymorphism (SNP) with minor allele frequency (MAF)>0.2 in SLC12A8. Each square plots the level of LD between a pair of sites in the region; comparisons between neighboring sites lie along the first line. Black coloring indicates strong LD, gray indicates intermediate or uninformative LD, and white indicates weak LD. The areas limited by a black line show the nine haplotype blocks along the gene defined as described in Material and Methods. Journal of Investigative Dermatology 2005 125, 906-912DOI: (10.1111/j.0022-202X.2005.23847.x) Copyright © 2005 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 3 Results of the χ2 statistics for the haplotypes within a haplotype block in SLC12A8 (compared with controls). The horizontal line indicates the significance level of p<0.05. Journal of Investigative Dermatology 2005 125, 906-912DOI: (10.1111/j.0022-202X.2005.23847.x) Copyright © 2005 The Society for Investigative Dermatology, Inc Terms and Conditions

Figure 4 Overview of different association levels including longer-range haplotypes in the case–control study. (a) Exon structure of SLC12A8. 5′and 3′ untranslated regions are indicated as thinner blocks. (b) Eight intragenic haplotype blocks (from A to H), strongly associated haplotypes in black. (c) Associated single nucleotide polymorphisms in case–control study displayed as black arrows, dashed arrow indicates rs1712458. (d) Extension of longer-range haplotypes and significance levels of association in the case–control study (χ2 statistics) (for details, see manuscript). Journal of Investigative Dermatology 2005 125, 906-912DOI: (10.1111/j.0022-202X.2005.23847.x) Copyright © 2005 The Society for Investigative Dermatology, Inc Terms and Conditions