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: 1EXY  PDB ID: 1EXY 


Base Pair Morphology Step Parameters

CSV Format

Model NumberStep NumberStep NameShiftSlideRiseTiltRollTwistX-DisplacementY-DisplacementHelical RiseInclinationTipHelical Twist
111AA_A11C12:G17U18_AA1.094-0.6022.919-3.9454.31642.904-1.182-1.8182.7435.8685.36343.282
14AA_C4G5:C28G29_AA1.181-2.4483.1680.10430.81924.861-5.936-1.7440.14152.011-0.17539.406
16AA_C6C7:G24G25_AA0.092-2.0942.41119.789-3.13715.73-4.0294.3821.827-8.179-51.59325.424
17AA_C7G8:C23G24_AA0.436-1.5574.168-2.9638.12136.01-3.785-1.1733.69612.9084.7136.999
112AA_C12G13:A16G17_AA-0.836-0.9722.9831.8447.56164.652-1.1860.8462.8457.043-1.71865.068
11AA_G1G2:U31C32_AA0.465-1.3842.522-9.9082.00224.327-3.432-2.9582.0584.50922.3226.315
12AA_G2G3:C30U31_AA-0.162-1.93.392-0.25812.7438.866-4.0580.2052.66718.5490.37540.825
13AA_G3C4:G29C30_AA-0.376-1.083.0990.9868.33642.471-2.2120.5982.83911.374-1.34543.255
15AA_G5C6:G25C28_AA6.0640.3894.3830.5-40.00577.011.546-4.4583.903-30.314-0.37985.328
18AA_G8G9:C20C23_AA4.546-0.0541.827-2.339.53769.129-0.232-4.021.6748.3622.04369.737
19AA_G9U10:A19C20_AA-0.954-1.3443.4995.7821.62438.846-2.22.1353.2722.425-8.63139.29
110AA_U10A11:U18A19_AA-0.132-1.7993.6732.38518.15128.837-5.8880.5952.17632.627-4.28734.053

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.