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: NA2191  PDB ID: 4B3P 


Base Pair Hydrogen Bonding Classification

CSV Format

Model NumberPair NumberPair NameLeontis / Westhof ClassificationSaenger Classification
19D_DA9:U26_R120
115D_DA15:U20_R120
117D_DA17:U18_R120
121D_DA21:U14_R00
16D_DC6:G29_R119
112D_DC12:G23_R119
113D_DC13:G22_R119
11D_DG1:C34_R119
13D_DG3:C32_R119
14D_DG4:C31_R119
17D_DG7:C28_R119
111D_DG11:C24_R119
118D_DG18:C17_R119
12D_DT2:A33_R120
15D_DT5:A30_R120
18D_DT8:A27_R120
110D_DT10:A25_R120
114D_DT14:A21_R120
116D_DT16:A19_R120
119D_DT19:A16_R120
120D_DT20:A15_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)