A Portal for Three-dimensional Structural Information about Nucleic Acids
As of 11-May-2022 number of released structures: 12077
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NDB ID: 1R7W  PDB ID: 1R7W 


Base Pair Morphology Step Parameters

CSV Format

Model NumberStep NumberStep NameShiftSlideRiseTiltRollTwistX-DisplacementY-DisplacementHelical RiseInclinationTipHelical Twist
13AA_A3G4:C31U32_AA-0.367-2.183.3591.31912.91231.867-5.5150.8082.31122.392-2.28834.345
16AA_A6C7:G28U29_AA0.149-2.1753.552-1.7546.79130.781-5.282-0.6043.00212.593.25231.551
18AA_A15C16:G25U26_AA0.478-1.132.9656.6846.89129.344-3.3130.2532.67813.167-12.7730.842
17AA_C14A15:U26G27_AA0.0-1.6333.6624.39420.73431.675-5.120.5532.20433.685-7.13837.96
19AA_C16G17:C24G25_AA-0.081-1.3313.841-7.59111.32527.402-5.009-1.512.98922.24514.9130.548
11AA_G1G2:C33C34_AA-0.865-2.0423.680.937-13.24335.151-1.0321.4974.134-21.024-1.48737.5
12AA_G2A3:U32C33_AA1.215-2.493.4150.4711.38122.161-6.998-2.9733.283.588-1.22322.209
14AA_G4G5:C30C31_AA-0.572-2.0213.2710.054.22622.108-6.6421.4822.83810.891-0.12922.504
15AA_G5A6:U29C30_AA0.236-1.6873.102-3.9056.16527.771-4.638-1.2582.61712.5727.96428.695
110AA_G17G18:C23C24_AA-0.255-1.7333.473.47713.57131.294-4.9880.9572.48623.725-6.07934.215
111AA_G18G19:A22C23_AA-3.688-1.6532.686-10.1792.58352.818-1.9743.4993.2162.87111.31653.778

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.