title: A Janus-Wedge DNA triplex with A-W1-T and G-W2-C base triplets.
abstract: A new type of double-stranded DNA targeting format by formation of a Janus-Wedge (J-W) triple helix is described. The "wedge" residue W1 is used for A-T and T-A base pairs while W2 is used for G-C and C-G base pairs. Both wedge residues are attached to a PNA backbone that is designed to insert the probe strand into double-stranded DNA and base pair with both Watson-Crick faces. To study the stability of such an assembly, we have examined the formation of the J-W triplex with various sequences.
authors.affiliation: Department of Chemistry, Merkert Chemistry Center, Boston College, 2609 Beacon Street, Chestnut Hill, Massachusetts 02467, USA.
authors.forename: Han
authors.initials: H
authors.lastname: Chen
authors.lastname: Meena
authors.forename: Larry W
authors.initials: LW
authors.lastname: McLaughlin
mesh_terms: D001483:Base Sequence; D004247:DNA / Q000737:chemistry*; D009690:Nucleic Acid Conformation; D009691:Nucleic Acid Denaturation; D013696:Temperature
chemical_list: C051802:triplex DNA; D004247:DNA