作者:Vijay Singh、Mykhailo Azarkh、Thomas E. Exner、Jörg S. Hartig、Malte Drescher
DOI:10.1002/anie.200902146
日期:2009.12.14
physiological conditions telomeric sequences adopt different quadruplex topologies, although the exact nature of these species is currently debated. Double spin‐labeled oligonucleotides consisting of guanosine‐rich telomeric repeats are synthesized and characterized by pulsed EPR techniques. In solution in the presence of K+ ions the propeller and basket quadruplex conformations co‐exist as a 1:1 mixture
远程学习:在生理条件下,端粒序列采用不同的四链体拓扑结构,尽管目前尚在讨论这些物种的确切性质。合成了由富含鸟苷端粒重复序列组成的双自旋标记寡核苷酸,并通过脉冲EPR技术对其进行了表征。在存在K +离子的溶液中,螺旋桨和篮式四重体构象以1:1的混合物共存。