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: 1XST  PDB ID: 1XST 


Base Pair Morphology Step Parameters

CSV Format

Model NumberStep NumberStep NameShiftSlideRiseTiltRollTwistX-DisplacementY-DisplacementHelical RiseInclinationTipHelical Twist
13AA_A3A4:U24U25_AA0.522-0.6034.6342.529-2.1635.847-0.537-0.3314.686-3.5-4.09935.996
14AA_A4G5:C23U24_AA0.29-1.4763.514-1.4963.83727.016-4.117-1.0023.2568.1533.17827.322
16AA_C7C8:G21G22_AA-1.103-1.7283.8551.43514.9533.986-4.8621.9412.82724.166-2.31937.067
17AA_C8G9:C20G21_AA0.06-1.8575.4882.288-0.17525.735-4.0730.9375.484-0.392-5.12425.835
111AA_C12U13:G16G17_AA1.401-0.3042.893.28112.48199.825-0.369-0.8662.8828.133-2.138100.435
11AA_G1G2:C26C27_AA0.472-0.9894.594-0.73614.36326.969-5.697-1.0923.60528.381.45530.501
12AA_G2A3:U25C26_AA-0.648-0.9874.144-1.375-2.08532.693-1.290.8454.22-3.6972.43832.785
15AA_G5C7:G22C23_AA-1.678-0.6933.1761.42446.11239.411-2.7951.7441.59351.604-1.59459.967
18AA_G9G10:C19C20_AA1.94-1.843.806-13.153.1829.843-3.828-5.762.5435.81424.0432.703
19AA_G10U11:A18C19_AA-2.846-1.2423.8477.561-12.11329.1460.236.6363.275-22.451-14.01432.387
110AA_U11C12:G17A18_AA0.786-1.113.4420.33717.18933.313-3.952-1.1832.5927.802-0.54537.376

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.