A Portal for Three-dimensional Structural Information about Nucleic Acids
As of 18-May-2022 number of released structures: 12082
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NDB ID: 1QWA  PDB ID: 1QWA 


Base Pair Hydrogen Bonding Classification

CSV Format

Model NumberPair NumberPair NameLeontis / Westhof ClassificationSaenger Classification
13A_A3:U19_A120
16A_C6:G16_A119
17A_C7:G14_A119
19A_C9:G12_A60
11A_G1:C21_A119
12A_G2:C20_A119
15A_G5:C17_A119
14A_U4:A18_A120
18A_U8:A13_A120

Leontis/Westhof Classification Legend

Base-Phosphate Interactions Legend

Base-Stacking Interactions Legend

Saenger Classification Legend

Correspondence of Leontis/Westhof names to Saenger numbering (table)