motifs was prepared. The shown heptacyclic derivative exhibits an unprecedented binding preference for certain quadruplex topologies: it recognizes exclusively the human telomeric quadruplex in Na+ buffer but not in K+ buffer. This unique quadruplex binding profile is strongly dependent on the size of the ligand and may result from groove interactions.
感觉:制备了具有交替的
恶唑和
吡啶基序的非大环G-四链体粘合剂家族。所示的七环衍
生物对某些四链体拓扑表现出前所未有的结合偏好:它仅在Na +缓冲液中识别人端粒四链体,但在K +缓冲液中不识别。这种独特的四链结合谱在很大程度上取决于
配体的大小,并且可能是由凹槽相互作用引起的。