Chapter title |
Use of the U1A Protein to Facilitate Crystallization and Structure Determination of Large RNAs
|
---|---|
Chapter number | 6 |
Book title |
Nucleic Acid Crystallography
|
Published in |
Methods in molecular biology, January 2016
|
DOI | 10.1007/978-1-4939-2763-0_6 |
Pubmed ID | |
Book ISBNs |
978-1-4939-2762-3, 978-1-4939-2763-0
|
Authors |
Ferré-D’Amaré, Adrian R., Adrian R. Ferré-D’Amaré |
Abstract |
The preparation of well-ordered crystals of RNAs with complex three-dimensional architecture can be facilitated by engineering a binding site for the spliceosomal protein U1A into a functionally and structurally dispensable stem-loop of the RNA of interest. Once suitable crystals are obtained, the U1A protein, of known structure, can be employed to facilitate preparation of heavy atom or anomalously scattering atom derivatives, or as a source of partial model phases for the molecular replacement method. Here, we describe the methods for making U1A preparations suitable for cocrystallization with RNA. As an example, the cocrystallization of the tetracycline aptamer with U1A is also described. |
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