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: 1Z31  PDB ID: 1Z31 


Base Pair Morphology Step Parameters

CSV Format

Model NumberStep NumberStep NameShiftSlideRiseTiltRollTwistX-DisplacementY-DisplacementHelical RiseInclinationTipHelical Twist
12AA_A258G259:C297U298_AA0.224-2.0463.423-4.36928.99325.342-5.894-0.760.73649.4617.45338.572
19AA_A269C270:G286U287_AA-0.112-1.6464.018-7.9694.56833.747-3.57-1.2613.77.69313.42134.939
110AA_C270U271:G285G286_AA-1.746-1.6753.57822.23520.36489.225-1.541.6242.84314.172-15.47593.155
11AA_G257A258:U298C299_AA1.658-0.8973.4868.917-1.85933.478-1.181-1.2233.831-3.156-15.13434.661
13AA_G259G260:C296C297_AA-0.807-0.563.644-1.4993.59839.585-1.2870.9933.6095.2972.20739.769
14AA_G260U261:A295C296_AA1.847-1.5662.7392.1377.63425.997-4.858-3.5062.33416.488-4.61527.159
16AA_G263G264:C293C294_AA-0.534-1.7093.517-4.99813.07435.565-4.270.1842.78920.4547.81938.137
17AA_G264C265:G292C293_AA-0.402-2.1623.5882.394-5.09937.24-2.5970.9763.809-7.929-3.72337.648
18AA_G268A269:U287C288_AA0.669-0.6643.1955.13326.98132.628-3.491-0.4352.14940.299-7.66742.407
15AA_U261G263:C294A295_AA-1.868-1.8382.9580.48713.6728.186-5.4213.5371.85726.206-0.93331.269

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.