摘要:
Disclosed herein are bifacial peptide nucleic acid probes. These probes can include a triplex hybrid forming moiety (e.g., a plurality of binding motifs disposed along a peptidyl backbone) conjugated to a prosthetic group. The triplex hybrid forming moiety can bind to a non-canonical base pairing site in a target nucleic acid via triplex hybridization. In this way, a variety of prosthetic groups (e.g., dyes, labels, reactive groups, etc.) can be selectively delivered to a target nucleic acid (e.g.,in vivo,in vitro, orex vivo).