Title : High-affinity triple helix formation by synthetic oligonucleotides at a site within a selectable mammalian gene.

Pub. Date : 1995 May 30

PMID : 7766635






2 Functional Relationships(s)
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1 By screening a number of potential target sites for triple helix formation within mammalian genes that allow genetic selection in cell culture, we have identified a site within intron 1 of the hamster adenine phosphoribosyltransferase (APRT) gene that specifically binds a triplex-forming oligodeoxyribonucleotide (TFO) with high affinity. tfo adenine phosphoribosyltransferase Homo sapiens
2 This high-affinity binding is very specific, as a 10(5)-fold excess of genomic DNA reduced triplex formation less than 10-fold, and within a 6928-bp plasmid bearing the APRT gene, only restriction fragments containing the intron 1 site were found to bind the TFO. tfo adenine phosphoribosyltransferase Homo sapiens