A bioinformatics framework for genotype-phenotype correlation in humans with Marfan syndrome caused by FBN1 gene mutations

  • Authors:
  • Christian Baumgartner;Gábor Mátyás;Beat Steinmann;Martin Eberle;Jörg I. Stein;Daniela Baumgartner

  • Affiliations:
  • Research Group for Clinical Bioinformatics, University for Health Sciences, Medical Informatics and Technology, Austria;Division of Metabolism and Molecular Pediatrics, University Children's Hospital, Zurich, Switzerland and Division of Medical Molecular Genetics and Gene Diagnostics, Institute of Medical Genetics, ...;Division of Metabolism and Molecular Pediatrics, University Children's Hospital, CH Zurich, Switzerland;Research Group for Clinical Bioinformatics, University for Health Sciences, Medical Informatics and Technology, Hall in Tyrol, Austria;Clinical Division of Pediatric Cardiology, Innsbruck Medical University, Innsbruck, Austria;Research Group for Clinical Bioinformatics, University for Health Sciences, Medical Informatics and Technology, Hall in Tyrol, Austria and Clinical Division of Pediatric Cardiology, Innsbruck Medi ...

  • Venue:
  • Journal of Biomedical Informatics
  • Year:
  • 2006

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Abstract

Mutations in the human FBNI gene are known to be associated with the Marfan syndrome, an autosomal dominant inherited multi-systemic connective tissue disorder. However, in the absence of solid genotype-phenotype correlations, the identification of an FBNI mutation has only little prognostic value. We propose a bioinformatics framework for the mutated FBNI gene which comprises the collection, management, and analysis of mutation data identified by molecular genetic analysis (DHPLC) and data of the clinical phenotype. To query our database at different levels of information, a relational data model, describing mutational events at the cDNA and protein levels, and the disease's phenotypic expression from two alternative views, was implemented. For database similarity requests, a query model which uses a distance measure based on log-likelihood weights for each clinical manifestation, was introduced. A data mining strategy for discovering diagnostic markers, classification and clustering of phenotypic expressions was provided which enabled us to confirm some known and to identify some new genotype-phenotype correlations.