Eikenboom J C, Reitsma P H, Briët E
Department of Hematology, University Hospital Leiden, The Netherlands.
Ann Hematol. 1994 Mar;68(3):139-41. doi: 10.1007/BF01727418.
In an isolated type-IIB von Willebrand's disease patient we detected a Val553-->Met substitution. The patient seemed to be homozygous, although this substitution was absent in both asymptomatic parents. Since two identical de novo mutations are highly unlikely, we tested for unsuccessful amplification of one allele. We found a novel polymorphism in the complementary sequence of a primer widely used for selective amplification of the von Willebrand factor gene.
