5' Super G®

Super G (8-aza-7-deazaguanosine) is a modified base that eliminates naturally occurring, non-Watson-and-Crick secondary structures associated with guanine-rich sequences. Oligonucleotides containing Super G can be extended normally by polymerases, including Taq polymerase, making Super G a useful modified base for designing guanine-rich primers and probes. In addition, unlike standard guanine bases, Super G does not quench fluorophores, potentially improving probe performance

Structure