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: PTR009  PDB ID: 1QRS 


Base Pair Morphology Step Parameters

CSV Format

Model NumberStep NumberStep NameShiftSlideRiseTiltRollTwistX-DisplacementY-DisplacementHelical RiseInclinationTipHelical Twist
16BB_A7C49:G65U66_BB-0.428-1.8613.241.368-3.3241.73-2.2530.7443.356-4.651-1.91641.878
124BB_A13A14:U8A45_BB-0.9142.953.149-9.351-2.582-40.24-3.912-2.2583.0473.689-13.358-41.346
125BB_A14G15:C48U8_BB1.461-2.9733.2263.16917.281-72.9311.8761.3093.698-14.3352.629-74.731
113BB_A37U38:U32U33_BB0.324-1.8262.93-8.6326.73550.126-2.509-0.8832.5957.84110.05151.232
19BB_A51G52:C62U63_BB0.233-2.0083.2132.4830.65925.536-4.7040.1613.1691.485-5.59925.662
122BB_C11C12:G23G24_BB0.257-2.2993.074.4685.90326.056-6.2120.4352.50612.768-9.66427.07
123BB_C12A13:A45G23_BB1.41-4.3083.28213.7174.015140.401-2.309-0.6743.2852.132-7.285140.721
116BB_C40C41:G29G30_BB-0.238-1.6393.488-2.38711.55635.71-4.0480.0592.84918.243.76837.548
117BB_C41G42:C28G29_BB-0.625-1.6373.5132.70612.69919.485-8.0142.3891.98233.176-7.0723.38
120BB_C44G10:C25A26_BB-4.034-0.9753.1053.85811.17449.804-1.8094.9112.54613.057-4.50851.101
17BB_C49G50:C64G65_BB-0.058-2.0773.4770.3879.38725.047-6.8160.2212.54420.738-0.85626.724
11BB_G2G3:C70C71_BB0.585-1.4043.168-1.8169.28230.607-4.061-1.3582.60417.0793.34132.002
12BB_G3G4:C69C70_BB0.215-1.7063.221.4325.58135.007-3.575-0.1552.9289.2-2.3635.464
13BB_G4G5:C68C69_BB0.635-2.0643.5874.8999.86928.645-5.874-0.2252.80619.078-9.4730.65
14BB_G5U6:A67C68_BB0.204-1.3453.381-1.063.69132.079-3.078-0.5573.2026.6491.90932.302
121BB_G10C11:G24C25_BB-0.437-1.6733.327-1.4670.71142.278-2.3910.4543.3120.9862.03342.308
118BB_G42G43:C27C28_BB-0.077-1.9213.425-2.9474.00529.37-4.583-0.4713.1347.8285.75929.779
119BB_G43C44:A26C27_BB0.383-1.4083.3614.834.74242.634-2.386-0.0413.2166.473-6.59443.144
18BB_G50A51:U63C64_BB-0.58-0.883.249-2.9787.37537.758-2.2230.5183.06511.2444.5438.557
110BB_G52G53:C61C62_BB1.043-2.1213.6674.5049.15431.089-5.441-1.0313.05316.53-8.13232.681
111BB_G53U54:A58C61_BB-2.203-1.6133.0274.203-2.13689.793-1.1021.6382.973-1.512-2.97689.89
15BB_U6A7:U66A67_BB0.141-1.3762.884.6527.10530.687-3.60.4562.50113.113-8.58531.813
114BB_U38U39:A31U32_BB0.928-1.983.327-14.0174.85541.369-3.087-2.5012.6556.62219.11843.838
115BB_U39C40:G30A31_BB0.408-1.9813.0363.4985.39239.119-3.486-0.2372.7757.987-5.18139.623
112BB_U54U55:G18A58_BB1.298-2.0133.2215.9310.09139.56-3.889-1.2412.80514.528-8.53741.188

The above values were obtained using first alternate conformation only and calculated by 3DNA program.
Xiang-Jun Lu & Wilma K. Olson (2003). '3DNA: a software package for the analysis, rebuilding and visualization of three-dimensional nucleic acid structures', Nucleic Acids Res.31(17), 5108-21.
Xiang-Jun Lu & Wilma K. Olson (2008). '3DNA: a versatile, integrated software system for the analysis, rebuilding and visualization of three-dimensional nucleic-acid structures', Nat Protoc.3(7), 1213-27.