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: 1A51  PDB ID: 1A51 


Base Pair Hydrogen Bonding Classification

CSV Format

Model NumberPair NumberPair NameLeontis / Westhof ClassificationSaenger Classification
16A_A73:U103_A424
111A_A78:G98_A911
13A_C70:G106_A119
14A_C71:G105_A119
11A_G68:C108_A119
12A_G69:C107_A119
15A_G72:A104_A1011
18A_G75:A101_A00
19A_G76:G100_A00
112A_G79:C97_A119
114A_G81:U95_A128
116A_G83:C93_A119
117A_G84:C92_A119
118A_G85:C91_A119
119A_G86:C90_A10
17A_U74:G102_A20
110A_U77:A99_A424
113A_U80:G96_A128
115A_U82:A94_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)