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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 Number
Step Number
Step Name
Shift
Slide
Rise
Tilt
Roll
Twist
X-Displacement
Y-Displacement
Helical Rise
Inclination
Tip
Helical Twist
1
6
AA_C7U8:A28G29_AA
-0.102
-2.389
3.219
-3.823
4.461
26.698
-6.086
-0.666
2.778
9.515
8.154
27.326
1
8
AA_C9C10:G26G27_AA
1.447
-2.155
3.427
3.12
5.197
35.859
-4.194
-1.876
3.204
8.366
-5.024
36.351
1
12
AA_C17G18:A21G22_AA
-2.772
-0.321
4.273
10.995
-7.588
25.33
1.34
8.496
2.83
-15.966
-23.135
28.586
1
1
AA_G1G2:C37C38_AA
-0.431
-2.391
3.08
-4.464
8.97
26.444
-6.644
0.015
2.208
18.773
9.343
28.247
1
2
AA_G2G3:C36C37_AA
-0.133
-2.559
3.079
-6.474
11.783
28.983
-6.375
-0.7
1.906
22.104
12.146
31.889
1
3
AA_G3U4:A35C36_AA
-0.225
-2.203
3.219
3.065
3.28
32.9
-4.378
0.881
2.959
5.758
-5.38
33.196
1
5
AA_G5A6:U33C34_AA
1.228
-1.754
2.916
1.923
6.925
21.26
-6.624
-2.57
2.334
18.115
-5.03
22.429
1
9
AA_G14G15:C24C25_AA
0.199
-1.162
3.614
-0.035
17.694
25.748
-5.551
-0.378
2.35
34.937
0.069
31.157
1
10
AA_G15U16:A23C24_AA
0.082
-1.335
3.482
-0.983
15.93
31.262
-4.555
-0.281
2.524
27.436
1.693
35.009
1
4
AA_U4G5:C34A35_AA
0.037
-2.137
3.828
5.333
23.262
34.217
-5.466
0.51
2.02
34.79
-7.976
41.512
1
7
AA_U8C9:G27A28_AA
-0.717
-2.528
3.464
-1.38
8.684
34.465
-5.374
0.98
2.791
14.368
2.283
35.536
1
11
AA_U16C17:G22A23_AA
0.694
-1.095
3.188
1.458
8.146
29.702
-3.55
-1.04
2.825
15.515
-2.777
30.808
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.