Structural features that give rise to the unusual stability of RNA hairpins containing GNRA loops by H. A. Heus and others

Science253(5016),191–194(1991), DOI10.1126/science.1712983. Primary indexed byline H. A. Heus and A. Pardi. Abstract: solution NMR structures of GCAA and GAAA hairpins, first/last-loop G-A pair, base–phosphate and sugar–base hydrogen bonding, and stacking.