A Portal for Three-dimensional Structural Information about Nucleic Acids
As of 22-Jun-2022 number of released structures: 12128
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NDB ID: NA2192  PDB ID: 4B3Q 


Base Pair Hydrogen Bonding Classification

CSV Format

Model NumberPair NumberPair NameLeontis / Westhof ClassificationSaenger Classification
11D_DA3:U26_R120
17D_DA9:U20_R120
19D_DA11:U18_R120
113D_DA15:U14_R120
14D_DC6:G23_R119
15D_DC7:G22_R119
120D_DC22:G7_R119
121D_DC23:G6_R119
13D_DG5:C24_R119
110D_DG12:C17_R119
116D_DG18:C11_R119
118D_DG20:C9_R119
119D_DG21:C8_R119
12D_DT4:A25_R120
16D_DT8:A21_R120
18D_DT10:A19_R120
111D_DT13:A16_R120
112D_DT14:A15_R120
114D_DT16:A13_R120
115D_DT17:A12_R120
117D_DT19:A10_R120

Leontis/Westhof Classification Legend

Base-Phosphate Interactions Legend

Base-Stacking Interactions Legend

Saenger Classification Legend

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