Mild hemophilia A associated with a cryptic donor splice site mutation in intron 4 of the factor VIII gene

Hagop Youssoufian, Haig H. Kazazian, Achyut Patel, Sophia Aronis, George Tsiftis, Leon W. Hoyer, Stylianos E. Antonarakis

Research output: Contribution to journalArticle

Abstract

Hemophilia A, an X-linked disease caused by deficiency of factor VIII, is characterized by variation in clinical severity and coagulation activity. This variation is thought to reflect heterogeneity of mutations in the factor VIII gene. Here we describe a CG-to-CA mutation within a potential cryptic donor splice site in intron 4 of the factor VIII gene from a patient with mild disease. This mutation makes the cryptic sequence resemble more closely the consensus sequence for donor splice sites. We infer that the mutation activates the cryptic donor splice site, which in turn causes a defect in RNA processing.

Original languageEnglish (US)
Pages (from-to)32-36
Number of pages5
JournalGenomics
Volume2
Issue number1
DOIs
StatePublished - Jan 1988

ASJC Scopus subject areas

  • Genetics

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