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: PR0047  PDB ID: 1I6U 


Base Pair Hydrogen Bonding Classification

CSV Format

Model NumberPair NumberPair NameLeontis / Westhof ClassificationSaenger Classification
110C_A11:U28_C120
14C_C4:G34_C119
15C_C5:G33_C119
16C_C6:G32_C119
114C_C14:G23_C119
116C_C16:G21_C119
11C_G1:C37_C119
12C_G2:C36_C119
13C_G3:C35_C119
17C_G7:C31_C119
18C_G8:C30_C119
111C_G12:C27_C119
19C_U9:G29_C028
113C_U13:A24_C120
115C_U15:A22_C120
117C_U17:G20_C00
112C_U25:A26_C90
127D_A11:U28_D120
121D_C4:G34_D119
122D_C5:G33_D119
123D_C6:G32_D119
131D_C14:G23_D119
133D_C16:G21_D119
118D_G1:C37_D119
119D_G2:C36_D119
120D_G3:C35_D119
124D_G7:C31_D119
125D_G8:C30_D119
128D_G12:C27_D119
126D_U9:G29_D028
130D_U13:A24_D120
132D_U15:A22_D120
134D_U17:G20_D20
129D_U25:A26_D90

Leontis/Westhof Classification Legend

Base-Phosphate Interactions Legend

Base-Stacking Interactions Legend

Saenger Classification Legend

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