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: 2U2A  PDB ID: 2U2A 


Base Pair Morphology Step Parameters

CSV Format

Model NumberStep NumberStep NameShiftSlideRiseTiltRollTwistX-DisplacementY-DisplacementHelical RiseInclinationTipHelical Twist
15AA_A5G6:C15U16_AA0.1-1.7673.96-0.195-8.56625.041-0.903-0.2874.316-19.0570.43526.444
14AA_C4A5:U16G17_AA0.735-1.2383.641-0.103-3.29627.506-1.682-1.5643.758-6.8990.21727.699
11AA_G1G2:C19C20_AA0.444-1.1153.217-1.97517.38632.542-3.896-0.9452.31828.5943.24836.835
12AA_G2U3:A18C19_AA-0.441-0.5653.369-1.29118.70135.203-3.0030.4992.75428.561.97239.742
16AA_G6U7:A14C15_AA-1.308-1.2053.906-3.01116.5438.084-3.7111.483.22623.9734.36441.503
13AA_U3C4:G17A18_AA0.359-0.7253.4461.10719.41136.079-3.196-0.3922.73628.905-1.64940.831
17AA_U7G8:A13A14_AA0.0660.0692.946-1.59514.25553.953-0.675-0.1552.87515.4071.72455.689

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.