ArticleHuman genetics1995
Localization of Alagille syndrome to 20p11.2-p12 by linkage analysis of a three-generation family.
Article in Human genetics, 1995. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 29 citations in OpenAlex.
- Spectrum and frequency of jagged1 (JAG1) mutations in Alagille syndrome patients and their families.American journal of human genetics · 1998Article
- [Endocrinologic and metabolic complications of Alagille syndrome].Medizinische Klinik (Munich, Germany : 1983) · 1997Article
- Alagille syndrome.Journal of medical genetics · 1997Review
- Molecular analysis of 24 Alagille syndrome families identifies a single submicroscopic deletion and further localizes the Alagille region within 20p12.American journal of human genetics · 1995Article
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Authors and funding
7 authors at 3 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Alagille syndrome (AGS) or arteriohepatic dysplasia is a rare but well-defined clinical entity that is usually inherited as an autosomal dominant trait. A limited number of patients carry a deletion in chromosome 20p, with 20p11.23-p12.2 as the area of minimal overlap. Recently, a family has been identified in which a balanced translocation with a breakpoint in 20p12 co-segregates with the AGS phenotype. Here, we report a three-generation family with AGS and in which the affected members have a normal karyotype. Linkage analysis was performed with markers from the 20p candidate region. A lod score of Z = 2.96 was obtained with D20S27 at no recombination. Combining D20S27 and D20S61 to a single highly informative locus resulted in a maximum lod score of Z = +3.56 at theta = 0.0. Haplotype analysis positioned AGS between D20S59 and D20S65, markers that define an interval of about 40 cM. Allelic loss was not observed for the tested markers and no abnormalities in the PAX1 candidate gene were detected. These findings demonstrate that the locus on chromosome 20p could be responsible for AGS in cytogenetically normal patients and argues for a general role of this locus in the aetiology of AGS.
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