A Portal for Three-dimensional Structural Information about Nucleic Acids
As of 1-Apr-2020 number of released structures: 10687
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NDB ID: 2K4C  PDB ID: 2K4C 


Base Pair Morphology Step Parameters

CSV Format

Model NumberStep NumberStep NameShiftSlideRiseTiltRollTwistX-DisplacementY-DisplacementHelical RiseInclinationTipHelical Twist
16AA_A6U7:A66U67_AA-0.529-1.2583.225-1.44718.10631.212-4.3420.6722.21130.622.44735.999
125AA_A14G15:C48U8_AA1.591-2.934.169-4.5237.713-72.9732.1221.1384.495-6.462-3.789-73.443
114AA_A38G39:C31C32_AA-0.799-0.8153.948-0.66514.00449.229-2.0920.8723.61516.4290.7851.067
117AA_A41G42:C28U29_AA0.073-1.533.529-5.088.34330.408-4.328-1.0742.96515.4149.38531.903
122AA_C11U12:A23G24_AA-0.446-1.393.4690.99412.53931.912-4.3030.9112.73121.778-1.72634.242
124AA_C13A14:U8G22_AA-1.854-0.0913.5395.079-5.32759.2190.1922.1343.38-5.368-5.11859.633
110AA_C51G52:C62G63_AA-0.003-1.5423.397-1.65212.91228.715-5.119-0.2862.48724.5073.13631.471
11AA_G1G2:C71C72_AA-0.195-1.6223.541.646.38430.581-4.2560.6823.13111.931-3.06531.267
12AA_G2G3:C70C71_AA0.012-1.3653.426-0.5849.0429.502-4.307-0.1352.89117.2461.11430.832
13AA_G3U4:A69C70_AA0.062-1.2283.344-0.0415.59829.428-3.52-0.1283.06310.8960.07929.945
15AA_G5A6:U67C68_AA0.273-1.2953.554-0.72510.11531.599-4.018-0.6053.00118.0031.2933.146
121AA_G10C11:G24C25_AA-0.478-1.3863.281-0.5347.39137.611-3.0060.6642.97211.330.81938.308
126AA_G15C60:U59C48_AA-1.446-2.8644.77133.78536.164-42.775-0.371.4975.508-37.74135.258-64.519
115AA_G39G40:C30C31_AA-0.146-1.6213.333-0.05515.72132.017-4.7430.2312.31126.5930.09335.578
116AA_G40A41:U29C30_AA-0.138-1.3493.5250.014.7632.817-3.2040.2443.3028.37-0.01733.151
118AA_G42G43:C27C28_AA-0.192-1.5183.5481.6452.73935.374-2.9150.5713.4124.497-2.70135.513
119AA_G43G44:A26C27_AA-0.499-1.533.6854.619.47235.118-3.8151.4663.09515.278-7.43736.616
120AA_G44G10:C25A26_AA-2.083-2.1424.11917.1427.14153.657-2.7163.2923.0897.657-18.38256.553
18AA_G49G50:U64C65_AA0.118-1.7673.194-3.2647.95924.993-5.762-1.0352.48717.7347.27326.41
19AA_G50C51:G63U64_AA-0.186-1.013.3980.3827.63738.883-2.3950.323.1511.339-0.56739.599
111AA_G52G53:C61C62_AA0.136-1.6463.601-1.6975.57334.211-3.667-0.5043.299.3892.85834.689
112AA_G53U54:A58C61_AA-1.232-2.4463.2963.608-2.30989.26-1.6920.9513.304-1.643-2.56689.341
14AA_U4G5:C68A69_AA0.104-1.3973.574-1.09111.88530.085-4.648-0.3822.82821.8472.00532.315
17AA_U7G49:C65A66_AA-0.3-1.5383.543.40411.08932.228-4.3731.0492.82719.216-5.89834.2
123AA_U12C13:G22A23_AA1.313-1.9963.1742.7523.56727.843-4.889-2.0833.0127.352-5.67228.198
113AA_U54U55:G18A58_AA2.149-2.2293.3346.73313.58948.099-3.574-2.0572.90116.209-8.03150.297

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.