| 6CK4: reference: Structures of two aptamers with differing ligand specificity reveal ruggedness in the functional landscape of RNA., Knappenberger AJ, Reiss CW, Strobel SA, Elife. 2018 Jun 7;7. pii: 36381. doi: 10.7554/eLife.36381. PMID: 29877798 |
This OCA 
Structure page
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(documentation).