Download
Software
Tools
Education
Standards
About NDB
A Portal for Three-dimensional Structural Information about Nucleic Acids
As of 18-May-2022 number of released structures: 12082
Search DNA
Search RNA
Advanced Search
Search for released structures
NDB ID:
2I7Z
PDB ID:
2I7Z
 
Base Pair Morphology Step Parameters
CSV Format
Model Number
Step Number
Step Name
Shift
Slide
Rise
Tilt
Roll
Twist
X-Displacement
Y-Displacement
Helical Rise
Inclination
Tip
Helical Twist
1
4
AA_A4U5:G39U40_AA
0.939
-0.371
3.744
2.683
1.2
39.912
-0.701
-1.018
3.785
1.756
-3.924
40.015
1
7
AA_A6C35:G8A64_AB
4.316
4.921
-0.443
141.25
38.743
-53.599
-2.094
0.583
-5.04
-21.76
79.334
-150.158
1
26
AB_A21G51:C78A49_BB
4.631
-2.466
4.141
-25.356
17.448
28.694
-4.553
-8.083
-0.88
27.212
39.547
41.842
1
6
AA_A37A6:A64A38_BA
-0.419
3.714
-1.337
-169.387
40.109
-171.624
-1.845
-0.161
-1.425
-20.056
-84.701
-179.567
1
19
AA_C24A23:G20G19_AA
-0.935
0.06
-3.276
0.005
-14.28
-42.071
-1.411
-1.239
-3.099
19.237
0.007
-44.324
1
12
AA_C31U30:A13G12_AA
-0.439
0.826
-3.1
-2.387
-16.582
-33.961
-3.206
-0.401
-2.473
26.484
-3.813
-37.758
1
9
AA_C34U33:A10G9_AA
-0.729
1.726
-4.234
2.299
-2.078
-29.466
-3.932
-2.041
-4.038
4.072
4.503
-29.625
1
8
AA_C35C34:G9G8_AA
1.421
1.269
-3.216
-1.975
-15.866
-35.514
-3.642
2.353
-2.379
24.536
-3.054
-38.841
1
1
AA_G1G2:C42U43_AA
0.137
-1.633
3.329
-4.076
-2.181
29.213
-2.721
-1.162
3.389
-4.291
8.019
29.569
1
2
AA_G2G3:C41C42_AA
0.166
-0.469
4.102
-0.18
9.187
36.933
-2.169
-0.283
3.878
14.234
0.279
38.02
1
3
AA_G3A4:U40C41_AA
-0.026
-0.505
4.021
-1.715
0.949
30.761
-1.177
-0.362
4.0
1.787
3.229
30.822
1
16
AA_G27U26:G17C16_AA
-1.892
0.68
-3.64
-12.183
-6.092
-23.338
-3.371
-0.228
-3.848
13.668
-27.334
-26.975
1
15
AA_G28G27:C16C15_AA
1.448
0.16
-3.555
5.271
-24.798
-33.133
-3.178
1.416
-2.947
37.431
7.957
-41.502
1
5
AA_U5A37:A38G39_AA
-0.752
4.631
-2.379
142.087
84.037
114.315
2.58
-0.06
-1.082
42.62
-72.061
171.924
1
18
AA_U25C24:G19G18_AA
-0.505
1.174
-3.809
0.349
-0.287
-37.734
-1.858
-0.833
-3.795
0.444
0.539
-37.736
1
17
AA_U26U25:G18G17_AA
-0.149
1.916
-3.3
-9.49
-20.051
-28.36
-5.546
0.911
-1.615
34.952
-16.542
-35.864
1
14
AA_U29G28:C15A14_AA
-0.082
0.912
-3.405
2.725
-23.116
-23.449
-5.313
-0.582
-1.804
45.074
5.314
-32.924
1
13
AA_U30U29:A14A13_AA
-0.205
0.445
-3.943
-2.174
-5.945
-29.945
-2.249
0.125
-3.792
11.347
-4.148
-30.592
1
11
AA_U32C31:G12A11_AA
0.018
0.352
-4.149
-0.43
-23.706
-37.444
-3.265
0.074
-3.365
33.178
-0.601
-44.09
1
10
AA_U33U32:A11A10_AA
-0.451
0.92
-3.903
-2.237
12.017
-26.122
1.546
-0.274
-3.959
-24.924
-4.639
-28.796
1
23
BB_A47U48:G82U83_BB
0.896
-0.301
3.77
2.374
11.362
45.278
-1.473
-0.903
3.638
14.479
-3.025
46.667
1
29
BB_A53A54:U75U76_BB
0.162
-0.783
3.942
1.863
1.697
34.034
-1.658
0.079
3.903
2.894
-3.177
34.124
1
30
BB_A54G55:C74U75_BB
-0.773
-0.408
3.728
0.589
16.266
32.173
-3.248
1.345
3.155
27.28
-0.989
35.959
1
32
BB_A56A57:U72U73_BB
-0.37
-0.83
3.879
1.192
15.781
31.385
-4.059
0.817
3.107
27.12
-2.048
35.059
1
33
BB_A57C58:G71U72_BB
0.52
-1.078
3.45
0.978
24.714
24.321
-5.389
-0.735
1.702
46.11
-1.825
34.555
1
25
BA_A80A21:A49A81_BB
-1.475
4.688
-1.273
-162.025
48.942
-87.146
-2.092
0.113
-2.88
-24.952
-82.605
-172.221
1
34
BB_C58C59:G70G71_BB
1.68
-0.393
3.8
6.852
12.386
32.58
-2.82
-1.556
3.684
20.893
-11.557
35.446
1
35
BB_C59G60:U69G70_BB
-1.957
-0.877
3.487
-9.598
11.625
23.81
-4.865
1.501
3.261
25.199
20.805
28.123
1
20
BB_G44G45:C85U86_BB
0.224
-1.756
3.392
-4.116
1.619
26.605
-4.186
-1.548
3.211
3.488
8.865
26.964
1
21
BB_G45G46:C84C85_BB
-0.027
-0.441
4.173
0.112
5.495
37.86
-1.548
0.059
4.071
8.415
-0.172
38.242
1
22
BB_G46A47:U83C84_BB
-0.418
-0.392
3.709
-1.727
12.762
31.451
-2.962
0.407
3.323
22.403
3.032
33.924
1
27
BB_G51G52:C77C78_BB
0.906
-1.336
3.379
0.402
10.227
34.839
-3.551
-1.401
2.895
16.642
-0.655
36.267
1
28
BB_G52A53:U76C77_BB
-0.598
-1.185
4.003
-1.671
6.202
30.763
-3.578
0.731
3.725
11.534
3.107
31.411
1
31
BB_G55A56:U73C74_BB
-0.366
-1.021
3.173
-4.331
11.086
29.126
-3.808
-0.075
2.644
20.974
8.193
31.415
1
36
BB_G60G61:U68U69_BB
-0.296
-1.694
3.453
-6.885
17.404
27.045
-5.772
-0.572
2.039
32.709
12.939
32.791
1
37
BB_G61G62:C67U68_BB
-0.167
-1.251
3.859
-2.474
12.504
34.116
-3.958
-0.118
3.223
20.448
4.045
36.353
1
38
BB_G62G63:A66C67_BB
-0.516
-0.241
3.402
-2.984
8.847
43.148
-1.185
0.396
3.319
11.865
4.002
44.1
1
24
BB_U48A80:A81G82_BB
-0.367
4.407
-2.502
135.761
71.563
120.312
2.453
-0.261
-1.341
36.578
-69.392
166.885
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.