Thromb Haemost 1992; 68(04): 448-454
DOI: 10.1055/s-0038-1646295
Original Article
Schattauer GmbH Stuttgart

Mutations in Severe, Type III von Willebrand’s Disease in the Dutch Population: Candidate Missense and Nonsense Mutations Associated with Reduced Levels of von Willebrand Factor Messenger RNA

Jeroen C J Eikenboom
The Department of Hematology, Hemostasis and Thrombosis Research Unit, University Hospital Leiden, Leiden, The Netherlands
,
Hans K Ploos van Amstel
The Department of Hematology, Hemostasis and Thrombosis Research Unit, University Hospital Leiden, Leiden, The Netherlands
,
Pieter H Reitsma
The Department of Hematology, Hemostasis and Thrombosis Research Unit, University Hospital Leiden, Leiden, The Netherlands
,
Ernest Briët
The Department of Hematology, Hemostasis and Thrombosis Research Unit, University Hospital Leiden, Leiden, The Netherlands
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Weitere Informationen

Publikationsverlauf

Received 24. Januar 1992

Accepted after revision 13. Mai 1992

Publikationsdatum:
04. Juli 2018 (online)

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Summary

The von Willebrand factor (vWF) genes of nine unrelated, severe, type III von Willebrand’s disease (vWD) patients (six of Dutch origin) and four unrelated Dutch type I vWD patients were screened for mutations in exons that contain CGA codons (Arg), which are liable to mutation to TGA stop codons. The nine exons of the vWF gene (3, 8, 9, 10, 28, 31, 32, 43 and 45) that contain all the CGA codons (11 in total) of the vWF cDNA were amplified by the polymerase chain reaction and screened for mutations by single-strand conformation polymorphism analysis, restriction enzyme – and/or nucleotide sequence analysis. Three of the severe vWD patients were found to be heterozygous for a nonsense mutation: CGA Arg 2535 → TGA Stop. Three other severe vWD patients were homozygous for a single nucleotide substitution, AAC Asn 2546 → TAC Tyr. The transcription of these mutated alleles was tested by cDNA dependent amplification of platelet RNA. The level of transcription product was strongly reduced for either mutant allele.