TY - JOUR A1 - Binas, Oliver A1 - Bessi, Irene A1 - Schwalbe, Harald T1 - Structure validation of G‐rich RNAs in noncoding regions of the human genome T2 - ChemBioChem N2 - We present the rapid biophysical characterization of six previously reported putative G‐quadruplex‐forming RNAs from the 5′‐untranslated region (5′‐UTR) of silvestrol‐sensitive transcripts for investigation of their secondary structures. By NMR and CD spectroscopic analysis, we found that only a single sequence—[AGG]2[CGG]2C—folds into a single well‐defined G‐quadruplex structure. Sequences with longer poly‐G strands form unspecific aggregates, whereas CGG‐repeat‐containing sequences exhibit a temperature‐dependent equilibrium between a hairpin and a G‐quadruplex structure. The applied experimental strategy is fast and provides robust readout for G‐quadruplex‐forming capacities of RNA oligomers. KW - biophysical investigation KW - circular dichroism KW - G-quadruplexes KW - NMR spectroscopy KW - RNA Y1 - 2020 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/56492 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-564929 SN - 1439-7633 SN - 1439-4227 VL - 21 IS - Issue Horst Kessler’s 80th Birthday SP - 1656 EP - 1663 PB - Wiley-VCH Verlag GmbH & Co. KGaA. CY - Weinheim ER -