Dang Dung Thanh, Phan Anh Tuân
School of Physical and Mathematical Sciences, Nanyang Technological University, 21 Nanyang Link, Singapore, 637371, Singapore.
Chembiochem. 2016 Jan 1;17(1):42-5. doi: 10.1002/cbic.201500503. Epub 2015 Dec 9.
We have developed fluorescent protein probes specific for parallel G-quadruplexes by attaching cyan fluorescent protein to the G-quadruplex-binding motif of the RNA helicase RHAU. Fluorescent probes containing RHAU peptide fragments of different lengths were constructed, and their binding to G-quadruplexes was characterized. The selective recognition and discrimination of G-quadruplex topologies by the fluorescent protein probes was easily detected by the naked eye or by conventional gel imaging.
我们通过将青色荧光蛋白连接到RNA解旋酶RHAU的G-四链体结合基序上,开发了对平行G-四链体具有特异性的荧光蛋白探针。构建了包含不同长度RHAU肽片段的荧光探针,并对它们与G-四链体的结合进行了表征。通过肉眼或传统凝胶成像很容易检测到荧光蛋白探针对G-四链体拓扑结构的选择性识别和区分。