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: 2A9L  PDB ID: 2A9L 


Base Pair Morphology Step Parameters

CSV Format

Model NumberStep NumberStep NameShiftSlideRiseTiltRollTwistX-DisplacementY-DisplacementHelical RiseInclinationTipHelical Twist
16AA_C7U8:A28G29_AA-0.102-2.3893.219-3.8234.46126.698-6.086-0.6662.7789.5158.15427.326
18AA_C9C10:G26G27_AA1.447-2.1553.4273.125.19735.859-4.194-1.8763.2048.366-5.02436.351
112AA_C17G18:A21G22_AA-2.772-0.3214.27310.995-7.58825.331.348.4962.83-15.966-23.13528.586
11AA_G1G2:C37C38_AA-0.431-2.3913.08-4.4648.9726.444-6.6440.0152.20818.7739.34328.247
12AA_G2G3:C36C37_AA-0.133-2.5593.079-6.47411.78328.983-6.375-0.71.90622.10412.14631.889
13AA_G3U4:A35C36_AA-0.225-2.2033.2193.0653.2832.9-4.3780.8812.9595.758-5.3833.196
15AA_G5A6:U33C34_AA1.228-1.7542.9161.9236.92521.26-6.624-2.572.33418.115-5.0322.429
19AA_G14G15:C24C25_AA0.199-1.1623.614-0.03517.69425.748-5.551-0.3782.3534.9370.06931.157
110AA_G15U16:A23C24_AA0.082-1.3353.482-0.98315.9331.262-4.555-0.2812.52427.4361.69335.009
14AA_U4G5:C34A35_AA0.037-2.1373.8285.33323.26234.217-5.4660.512.0234.79-7.97641.512
17AA_U8C9:G27A28_AA-0.717-2.5283.464-1.388.68434.465-5.3740.982.79114.3682.28335.536
111AA_U16C17:G22A23_AA0.694-1.0953.1881.4588.14629.702-3.55-1.042.82515.515-2.77730.808

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.