Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
5
pubmed:dateCreated
1995-12-6
pubmed:abstractText
We analyzed the molecular genetic defect responsible for type I Glanzmann's thrombasthenia in a Japanese patient. In an immunoblot assay using polyclonal anti-GpIIb-IIIa antibodies, some GPIIIa (15% of normal amount) could be detected in the patient's platelets, whereas GPIIb could not (< 2% of normal amount). Nucleotide sequence analysis of platelet GPIIb mRNA-derived polymerase chain reaction (PCR) products revealed that patient's GPIIb cDNA had a 75-bp deletion in the 3' boundary of exon 17 resulting in an in-frame deletion of 25 amino acids. DNA analysis and family study revealed that the patient was a compound heterozygote of two GPIIb gene defects. One allele derived from her father was not expressed in platelets, and the other allele derived from her mother had a 9644C--> T mutation which was located at the position -3 of the splice donor junction of exon 17 and resulted in a termination codon (TGA). Moreover, quantitative analysis demonstrated that the amount of the abnormal GPIIb transcript in the patient's platelets was markedly reduced. Thus, the C --> T mutation resulting in the abnormal splicing of GPIIb transcript and the reduction in its amount is responsible for Glanzmann's thrombasthenia.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
May
pubmed:issn
0340-6245
pubmed:author
pubmed:issnType
Print
pubmed:volume
73
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
756-62
pubmed:dateRevised
2008-8-29
pubmed:meshHeading
pubmed-meshheading:7482399-Adult, pubmed-meshheading:7482399-Amino Acid Sequence, pubmed-meshheading:7482399-Base Sequence, pubmed-meshheading:7482399-Deoxyribonucleases, Type II Site-Specific, pubmed-meshheading:7482399-Exons, pubmed-meshheading:7482399-Female, pubmed-meshheading:7482399-Genes, pubmed-meshheading:7482399-Heterozygote, pubmed-meshheading:7482399-Humans, pubmed-meshheading:7482399-Japan, pubmed-meshheading:7482399-Molecular Sequence Data, pubmed-meshheading:7482399-Platelet Glycoprotein GPIIb-IIIa Complex, pubmed-meshheading:7482399-Polymerase Chain Reaction, pubmed-meshheading:7482399-Polymorphism, Restriction Fragment Length, pubmed-meshheading:7482399-RNA, Messenger, pubmed-meshheading:7482399-RNA Processing, Post-Transcriptional, pubmed-meshheading:7482399-Sequence Deletion, pubmed-meshheading:7482399-Thrombasthenia
pubmed:year
1995
pubmed:articleTitle
Abnormal processing of the glycoprotein IIb transcript due to a nonsense mutation in exon 17 associated with Glanzmann's thrombasthenia.
pubmed:affiliation
Second Department of Internal Medicine, Osaka University Medical School, Japan.
pubmed:publicationType
Journal Article, Case Reports, Research Support, Non-U.S. Gov't