A Portal for Three-dimensional Structural Information about Nucleic Acids
As of 9-Feb-2023 number of released structures: 12635
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NDB ID: 1ETF  PDB ID: 1ETF 


Base Pair Morphology Step Parameters

CSV Format

Model NumberStep NumberStep NameShiftSlideRiseTiltRollTwistX-DisplacementY-DisplacementHelical RiseInclinationTipHelical Twist
112AA_A52G53:C65U66_AA-0.154-1.5162.74-1.748-3.51931.713-2.2030.0062.891-6.4093.18431.95
14AA_C44U45:A75G76_AA-0.304-1.9042.852-0.334.21522.232-6.1090.6762.45710.8050.84522.625
19AA_C49G50:C69G70_AA-0.286-1.6313.1663.553-7.06433.605-1.6381.0423.382-12.012-6.04334.497
111AA_C51A52:U66G67_AA0.756-0.8584.0062.9571.88439.137-1.552-0.6934.0062.806-4.40339.287
114AA_C54G55:A58G64_AA-0.956-1.0473.623-15.064-11.35643.242-0.188-0.2933.88-14.60919.3846.997
11AA_G41G42:C78C79_AA0.364-1.6723.8642.192-7.94527.063-1.101-0.1054.191-16.498-4.55228.268
12AA_G42U43:G77C78_AA-0.125-1.5184.1387.0075.93430.017-4.1691.8393.65711.134-13.14731.359
16AA_G46G47:A73C74_AA-1.384-0.8974.379-2.28-22.88841.3211.5761.4654.352-29.8232.9747.046
17AA_G47G48:G71A73_AA-0.757-1.8234.035-13.57221.251-84.940.726-0.924.187-15.447-9.865-87.917
18AA_G48C49:G70G71_AA0.189-1.1213.663-11.057-17.312124.73-0.467-0.213.726-9.7436.222125.689
110AA_G50C51:G67C69_AA0.774-1.5013.637-4.80120.66925.734-5.893-2.1121.80539.039.06633.24
113AA_G53C54:G64C65_AA0.408-1.9223.829-5.95324.22619.756-7.513-1.7280.87450.69812.45831.725
13AA_U43C44:G76G77_AA0.074-1.6433.372-3.83912.45322.951-6.629-1.0952.16728.5338.79626.349
15AA_U45G46:C74A75_AA-0.025-1.6713.011-0.65117.3129.664-4.992-0.0381.79230.7331.15634.253

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.