Mapping of Gene Loci for Nephronophthisis Type 4 and Senior-Løken Syndrome, to Chromosome 1p36  Maria J. Schuermann, Edgar Otto, Achim Becker, Katrin.

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Mapping of Gene Loci for Nephronophthisis Type 4 and Senior-Løken Syndrome, to Chromosome 1p36  Maria J. Schuermann, Edgar Otto, Achim Becker, Katrin Saar, Franz Rüschendorf, Bettine C. Polak, Sirpa Ala-Mello, Julia Hoefele, Alexander Wiedensohler, Maria Haller, Heymut Omran, Peter Nürnberg, Friedhelm Hildebrandt  The American Journal of Human Genetics  Volume 70, Issue 5, Pages 1240-1246 (May 2002) DOI: 10.1086/340317 Copyright © 2002 The American Society of Human Genetics Terms and Conditions

Figure 1 Haplotypes on chromosome 1p36 in six families with NPHP4. Eleven microsatellites, from p-ter to cen (top to bottom), are shown to the left of the pedigrees. Circles denote females; squares denote males; filled symbols indicate affected status. Haplotypes are indicated by as differently shaded bars. In family F30, the double line indicates consanguinity, and genotypes homozygous by descent in affected individuals are boxed. Markers flanking the NPHP4 locus, as defined by lack of homozygosity in family F30, are underlined. The American Journal of Human Genetics 2002 70, 1240-1246DOI: (10.1086/340317) Copyright © 2002 The American Society of Human Genetics Terms and Conditions

Figure 2 Multipoint LOD scores for the NPHP4 locus, versus the 11 markers shown in figure 1, calculated in all six families with NPHP4. Positions (in cM) are according to the Généthon map relative to the position of D1S243 (Dib et al. 1996). The two markers—D1S2660 and D1S2642—that flank the NPHP4 region (see fig. 1) are underlined. p-ter = p-terminal orientation; cen = centromeric orientation. The American Journal of Human Genetics 2002 70, 1240-1246DOI: (10.1086/340317) Copyright © 2002 The American Society of Human Genetics Terms and Conditions

Figure 3 Discovery of consanguinity in family F30. Year of birth is indicated below the symbol for each individual (but, in the last two generations, is omitted, to ensure anonymity). Note that consanguinity in the 17th century was detected; tracing of the consanguinity loop was facilitated by the occurrence of a rare name (“R”) and residence in a small township (“e”). Symbols are as in figure 1. A slash through a symbol indicates that the individual is deceased. The American Journal of Human Genetics 2002 70, 1240-1246DOI: (10.1086/340317) Copyright © 2002 The American Society of Human Genetics Terms and Conditions

Figure 4 Haplotypes on chromosome 1p36.31 of family F3 with SLS. Eight microsatellite markers, from p-ter to cen (top to bottom), are shown to the left of the pedigrees. Symbols are as in figure 1. In each of the affected individuals, the genotypes homozygous by descent are boxed. The two markers—D1S468 and D1S436—that flank the SLSN4 region are underlined. The American Journal of Human Genetics 2002 70, 1240-1246DOI: (10.1086/340317) Copyright © 2002 The American Society of Human Genetics Terms and Conditions