Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1991-10-2
pubmed:databankReference
pubmed:abstractText
Direct sequencing of segments of the factor VIII gene in 30 hemophiliacs with sporadic disease (32+ kb of sequence in total) revealed two missense transitions: glutamate 1704 to lysine (E1704----K) in a patient with severe hemophilia A and proline 2300 to serine (P2300----S) in a patient with mild hemophilia. Both transitions are likely to be causative mutations because the amino acids affected were evolutionarily conserved. Haplotype and sequence analysis of the mother and grandparents of patient HA12 (E1704----K) indicate that the mutation arose in the grandfather who was 27 years old when his daughter was conceived. The origin of mutation in patient HA39 (P2300----S) could not be determined. As mutations that cause mild disease can be found in seemingly unrelated families, 96 unrelated hemophiliacs were screened rapidly for the P2300----S mutation with polymerase chain reaction (PCR) amplification of specific alleles (PASA). None of these patients had the mutation. PASA was also used to conveniently assess a polymorphic site in intron 7. The polymorphism is estimated to be informative in 13% of Korean females and in 23% of Western European females.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0340-6717
pubmed:author
pubmed:issnType
Print
pubmed:volume
87
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
397-400
pubmed:dateRevised
2004-11-17
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
Identification of mutations in two families with sporadic hemophilia A.
pubmed:affiliation
Department of Biochemistry and Molecular Biology, Mayo Clinic/Foundation, Rochester, MN 55905.
pubmed:publicationType
Journal Article