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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1992-3-11
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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.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0925-5710
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
54
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
289-93
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:1777603-Base Sequence,
pubmed-meshheading:1777603-Blood Transfusion,
pubmed-meshheading:1777603-Codon,
pubmed-meshheading:1777603-Combined Modality Therapy,
pubmed-meshheading:1777603-DNA Mutational Analysis,
pubmed-meshheading:1777603-Female,
pubmed-meshheading:1777603-Gene Expression Regulation,
pubmed-meshheading:1777603-Genotype,
pubmed-meshheading:1777603-Globins,
pubmed-meshheading:1777603-Hemoglobin A2,
pubmed-meshheading:1777603-Humans,
pubmed-meshheading:1777603-Male,
pubmed-meshheading:1777603-Molecular Sequence Data,
pubmed-meshheading:1777603-Pedigree,
pubmed-meshheading:1777603-Splenectomy,
pubmed-meshheading:1777603-Thalassemia
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pubmed:year |
1991
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pubmed:articleTitle |
A C----G mutation at nt position 6 3' to the terminating codon may be the cause of a silent beta-thalassemia.
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pubmed:affiliation |
Department of Cell and Molecular Biology, Medical College of Georgia, Augusta 30912-2100.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Case Reports,
Research Support, Non-U.S. Gov't
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