A Portal for Three-dimensional Structural Information about Nucleic Acids
As of 29-Jun-2022 number of released structures: 12153
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NDB ID: 4X4S  PDB ID: 4X4S 


Base Pair Morphology Step Parameters

CSV Format

Model NumberStep NumberStep NameShiftSlideRiseTiltRollTwistX-DisplacementY-DisplacementHelical RiseInclinationTipHelical Twist
110BB_A10G11:C21U22_BB-0.155-1.9223.281-1.975-0.14433.66-3.291-0.0553.292-0.2493.40833.717
13BB_C3C4:G28G32_BB-0.136-2.2053.463-5.49612.26820.964-8.403-1.1541.88130.05613.46424.863
14BB_C4G5:C27G28_BB0.269-1.4143.4693.4916.86129.127-4.150.2083.07413.35-6.79430.106
16BB_C6G7:C25G26_BB1.119-2.3273.4361.1486.55312.332-15.104-3.6152.03427.994-4.90314.006
19BB_C9A10:U22G23_BB0.123-1.473.115-0.4689.71228.285-4.625-0.3242.48219.1720.92429.877
11BB_G1G2:C33C34_BB-0.067-1.6523.2474.1940.95732.635-3.0770.8233.1651.693-7.42232.91
12BB_G2C3:G32C33_BB0.414-1.6443.3263.8722.76734.515-3.169-0.0993.2154.636-6.48734.832
15BB_G5C6:G26C27_BB-0.774-0.6563.578-2.1447.69437.943-2.0080.8833.42311.6753.25438.745
17BB_G7G8:C24C25_BB1.128-2.0182.925-0.89812.27823.376-6.849-2.6491.63327.9562.04426.379
18BB_G8C9:G23C24_BB0.763-1.3393.0960.3967.76240.068-2.7-1.0552.80711.201-0.57240.785
111BB_G11G12:C20C21_BB-0.23-1.7793.8563.947.05935.768-3.9190.9743.41211.315-6.31636.641
112BB_G12U13:A17C20_BB-1.555-2.3043.047-2.1730.2584.459-1.7191.1093.0740.1861.61684.482
118DD_A10G11:C21U22_DD-0.241-2.1113.044-7.154-3.15831.549-3.236-0.7863.211-5.69912.9132.48
117DD_C9A10:U22G23_DD0.343-1.5493.4810.210.87627.698-5.256-0.6282.69621.687-0.39829.718
113DD_G1G2:C33C34_DD0.057-1.3853.4075.084.832.878-3.1930.7453.1538.362-8.8533.593
114DD_G2C3:G32C33_DD0.534-1.6393.2182.297-3.99532.143-2.217-0.5443.42-7.169-4.12132.463
115DD_G7G8:C24C25_DD1.311-1.6283.6843.05323.30720.452-7.246-1.8971.36249.107-6.43231.063
116DD_G8C9:G23C24_DD0.102-1.4323.65-0.59416.88542.082-3.434-0.1882.89822.4590.79145.204
119DD_G11G12:C20C21_DD-0.941-1.6513.7045.276.92830.851-4.3122.713.07112.708-9.66732.027

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.