This website was replaced by the Non-redundant Atlas, which contains the same data but has additional features such as version history and archiving.
Please consider switching to the new system if you are relying on this service. Feel free to get in touch with us using the contact form if you have any questions.
Please use the following citation when using this resource:
Leontis, N. B., & Zirbel, C. L. (2012). Nonredundant 3D Structure Datasets for RNA Knowledge Extraction and Benchmarking. In N. Leontis & E. Westhof (Eds.), (Vol. 27, pp. 281–298). Springer Berlin Heidelberg. doi:10.1007/978-3-642-25740-7_13