[Gene mutation analysis of one case with von willebrand disease type 2A].
Objective of this study was to identify gene mutation involved in a patient with type 2A von Willebrand disease (vWD). The bleeding time, vWF:Ag, FVIII:C, RIPA and multimeric assay were used for phenotypic diagnosis. All of the 52 exons and the exon-intron boundaries of vWF gene were amplified by polymerase chain reaction (PCR) and direct sequencing was carried out. The results indicated that the levels of vWF:Ag, FVIII:C and RIPA decreased in this patient, the vWF multimer with high and intermediate molecular weight was absent in plasma. The sequencing of genomic DNA revealed a C4738G (L1580V) missense mutation in the vWF gene from the patient. In conclusion, the C4738G (L1580V) missense mutation effecting the form of vWF multimer was responsible to molecular mechanism in this patient with vWD.
Hou
Li-Hong
LH
Department of Hematology, The Second Hospital of Shanxi Medical University, Taiyuan 030001, Shanxi Province, China.
Zhang
Yuan
Y
Liu
Xiu-E
XE
Yang
Lin-Hua
LH
D000328:Adult; D006801:Humans; D008297:Male; D020125:Mutation, Missense; D056728:von Willebrand Disease, Type 2 / Q000235:genetics*; D014841:von Willebrand Factor / Q000032:analysis / Q000235:genetics*
D014841:von Willebrand Factor