24 research outputs found

    Diamond-Blackfan anemia (DBA)

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    Review on Diamond-Blackfan anemia (DBA), with data on clinics, and the genes involved

    Simpson-Golabi-Behmel syndrome

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    Review on Simpson-Golabi-Behmel syndrome, with data on clinics, and the genes involved

    Three unrelated individuals with perinatally lethal osteogenesis imperfecta resulting from identical glycine 502 serine substitutions in the α2 chain of type I collagen

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    In general, osteogenesis imperfecta is caused by heterozygous mutations in either of the genes encoding the alpha 1 or alpha 2 chains of type I collagen (COL1A1 and COL1A2, respectively). Usually, these mutations are unique to the affected individual or individuals within a family. In this study, single-strand conformation polymorphism mapping analysis has been coupled with sequence analysis to identify a single base mutation in the alpha 2(I) gene of type I collagen; this mutation is identical in three unrelated individuals with perinatal lethal osteogenesis imperfecta. The heterozygous G to A transition at a CpG dinucleotide results in a Gly502Ser substitution in the alpha 2 chain of type I collagen
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