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PubMed · 3016654

A frequent polymorphism of the complement component C4 gene.

R Goldstein·J Gruhn·F C Arnett·M Duvic
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Chromosomes, Human, 6-12 and XComplement C4DNA Restriction EnzymesHumansPolymorphism, GeneticJournal ArticleResearch Support, Non-U.S. Gov't

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R Goldstein, J Gruhn, F C Arnett, M Duvic. 1986-07-11. A frequent polymorphism of the complement component C4 gene.. https://doi.org/10.1093/nar%2F14.13.5570

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PubMed1986

Isolation of a further anonymous informative DNA sequence from chromosome seven closely linked to cystic fibrosis.

A library prepared from flow-sorted chromosomes was used to isolate single-copy sequences from chromosome seven. One such sequence 7C22 has been shown to be polymorphic for an EcoRI restriction site and to be informative for the study of CF in approximately 35% of matings. The segregation of the 7C22 alleles was followed through nineteen informative families with more than one child affected by cystic fibrosis. We report that the locus for 7C22 is linked to the locus for cystic fibrosis at a recombination fraction of 0.045. This marker will prove useful in improving the accuracy and informativeness of prenatal diagnosis and in constructing a fine genetic map around the cystic fibrosis gene.

Chromosomes, Human, 6-12 and X↗