A Portal for Three-dimensional Structural Information about Nucleic Acids
As of 21-Aug-2019 number of released structures: 10343
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NDB ID: PTR005  PDB ID: 1ASY 


Base Pair Hydrogen Bonding Classification

CSV Format

Model NumberPair NumberPair NameLeontis / Westhof ClassificationSaenger Classification
18R_5MC649:G665_R119
113R_5MU654:A658_R424
17R_A607:U666_R120
126R_A614:U608_R424
127R_A615:U648_R221
121R_A644:G626_R08
12R_C602:G671_R119
13R_C603:G670_R119
115R_C638:PSU632_R00
119R_C642:G628_R119
120R_C643:G627_R119
14R_G604:C669_R119
16R_G606:C667_R119
122R_G610:U625_R028
128R_G618:C656_R119
116R_G639:C631_R119
118R_G641:C629_R119
19R_G650:C664_R119
110R_G651:C663_R119
111R_G652:C662_R119
112R_G653:C661_R119
125R_PSU613:G622_R127
114R_PSU655:G617_R20
11R_U601:A672_R120
15R_U605:G668_R128
123R_U611:A624_R120
124R_U612:A623_R120
117R_U640:G630_R128
136S_5MC649:G665_S119
141S_5MU654:A658_S424
135S_A607:U666_S120
153S_A614:U608_S424
154S_A615:U648_S221
148S_A644:G626_S08
130S_C602:G671_S119
131S_C603:G670_S119
146S_C642:G628_S119
147S_C643:G627_S119
132S_G604:C669_S119
134S_G606:C667_S119
149S_G610:U625_S128
156S_G618:C656_S119
143S_G639:C631_S119
145S_G641:C629_S119
137S_G650:C664_S119
138S_G651:C663_S119
139S_G652:C662_S119
140S_G653:C661_S119
155S_H2U616:U659_S213
152S_PSU613:G622_S127
142S_PSU655:G617_S20
129S_U601:A672_S120
133S_U605:G668_S128
150S_U611:A624_S120
151S_U612:A623_S120
144S_U640:G630_S128

Leontis/Westhof Classification Legend

Base-Phosphate Interactions Legend

Base-Stacking Interactions Legend

Saenger Classification Legend

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