A Portal for Three-dimensional Structural Information about Nucleic Acids
As of 11-May-2022 number of released structures: 12077
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NDB ID: TR0004  PDB ID: 1I9V 


Base Pair Hydrogen Bonding Classification

CSV Format

Model NumberPair NumberPair NameLeontis / Westhof ClassificationSaenger Classification
113A_5MU54:A58_A424
15A_A5:U68_A120
117A_A23:U12_A120
123A_A29:U41_A120
12A_C2:G71_A119
119A_C25:G10_A119
121A_C27:G43_A119
122A_C28:G42_A119
125A_C32:A38_A00
18A_C49:G65_A119
11A_G1:C72_A119
13A_G3:C70_A119
14A_G4:U69_A128
114A_G15:C48_A222
126A_G19:C56_A119
116A_G22:C13_A119
118A_G24:C11_A119
120A_G26:A44_A08
124A_G30:C40_A119
110A_G51:C63_A119
112A_G53:C61_A119
16A_U6:A67_A120
17A_U7:A66_A120
115A_U8:A14_A424
19A_U50:A64_A120
111A_U52:A62_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)