A bioinformatics framework for genotype-phenotype correlation in humans with Marfan syndrome caused by FBN1 gene mutations.
Mutations in the human FBN1 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 FBN1 mutation has only little prognostic value. We propose a bioinformatics framework for the mutated FBN1 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.
Baumgartner
Christian
C
Research Group for Clinical Bioinformatics, University for Health Sciences, Medical Informatics and Technology, A-6060 Hall in Tyrol, Austria. christian.baumgartner@umit.at
Mátyás
Gábor
G
Steinmann
Beat
B
Eberle
Martin
M
Stein
Jörg I
JI
Baumgartner
Daniela
D
D019295:Computational Biology / Q000379:methods*; D004252:DNA Mutational Analysis / Q000379:methods*; D003628:Database Management Systems; D030541:Databases, Genetic; D005060:Europe / Q000453:epidemiology; D000071838:Fibrillin-1; D000071837:Fibrillins; D005838:Genotype; D006801:Humans; D008382:Marfan Syndrome / Q000175:diagnosis / Q000453:epidemiology* / Q000235:genetics*; D008840:Microfilament Proteins / Q000235:genetics*; D010641:Phenotype; D054392:Adipokines
D000071838:Fibrillin-1; D000071837:Fibrillins; D008840:Microfilament Proteins; C000605722:FBN1 protein, human; D054392:Adipokines