Does a quadruplex have

A quadruplex, often referred to as a G-quadruplex, is a four-stranded nucleic acid structure formed from guanine-rich sequences of DNA or RNA. These structures can play significant roles in biological processes, such as regulating gene expression and maintaining genomic stability. They are characterized by the formation of stacked guanine tetrads, stabilized by hydrogen bonding and metal ions. Quadruplexes are of interest in cancer research and drug development due to their potential as therapeutic targets.