Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1992-3-11
pubmed:abstractText
We describe the hematological and clinical data for a young Greek patient with beta-thalassemia intermedia and for several members of her family. The patient had inherited the common IVS-I-1 (G----A) mutation from her mother, while the second beta-globin gene had a C----G mutation at position 6 3' to the terminating codon (term. + 6). Her father and three additional relatives with a heterozygosity for this newly discovered mutation had no hematological abnormalities, normal Hb A2 values, and a nearly normal in vitro chain synthesis ratio. Analyses of nearly 500 additional beta-thalassemia and normal chromosomes failed to detect this mutation which eliminates it as a common polymorphism. Although our findings may indicate a rare polymorphism, the probability that it represents the cause of diminished beta chain synthesis is very high indeed. We suggest that the C----G mutation in this untranslated region of the beta-globin gene causes a slight decrease in the stability of the mRNA which becomes clinically important only in situations when beta chain synthesis in trans is eliminated.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0925-5710
pubmed:author
pubmed:issnType
Print
pubmed:volume
54
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
289-93
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1991
pubmed:articleTitle
A C----G mutation at nt position 6 3' to the terminating codon may be the cause of a silent beta-thalassemia.
pubmed:affiliation
Department of Cell and Molecular Biology, Medical College of Georgia, Augusta 30912-2100.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Case Reports, Research Support, Non-U.S. Gov't