RNA aptamers are short nucleic acid sequences capable of binding to specific molecular targets with high affinity and selectivity. Among the most extensively studied of these is the theophylline aptamer—a 33-nucleotide RNA sequence that exhibits extraordinary specificity for the small molecule theophylline, distinguishing it from caffeine with over 10,000-fold selectivity, despite their near-identical structures. This makes the theophylline aptamer a compelling model for RNA-based recognition, biosensing, and molecular switch design.
Boltz-1 is a state-of-the-art open-source model for predicting biomolecular structures, including combinations of proteins, RNA, DNA, covalent ligands, and glycans. It supports modified residues and allows conditioning on specific interaction pockets or contacts. Released under the MIT license, Boltz-1 is free for academic and commercial use.
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