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: 2M21  PDB ID: 2M21 


Base Pair Hydrogen Bonding Classification

CSV Format

Model NumberPair NumberPair NameLeontis / Westhof ClassificationSaenger Classification
15A_A5:U17_A120
17A_A7:U15_A120
13A_C3:G19_A119
18A_C8:U14_A118
11A_G1:C21_A119
12A_G2:C20_A119
14A_G4:C18_A119
16A_U6:A16_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)