A Portal for Three-dimensional Structural Information about Nucleic Acids
As of 31-May-2023 number of released structures: 12820
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NDB ID: UR0065  PDB ID: 2A64 


Base Pair Morphology Step Parameters

CSV Format

Model NumberStep NumberStep NameShiftSlideRiseTiltRollTwistX-DisplacementY-DisplacementHelical RiseInclinationTipHelical Twist
13AA_A4A5:U410U411_AA0.867-0.9823.7462.74320.65530.623-4.562-0.972.65234.545-4.58836.899
14AA_A5U6:A409U410_AA0.219-1.3833.712-0.12611.1533.869-4.0-0.3783.11518.5270.20935.606
17AA_A8U9:A406U407_AA0.686-2.3433.1132.9550.96332.611-4.313-0.7333.0931.711-5.24732.754
135AA_A48A50:U397U398_AA2.169-1.2963.57-1.981-1.30875.544-1.015-1.8343.54-1.0671.61775.575
136AA_A50G51:C396U397_AA0.159-1.8352.7620.3434.33137.412-3.301-0.2112.5436.724-0.53237.655
140AA_A55U56:A392U393_AA-0.536-1.5793.196-1.5955.51733.024-3.5940.6822.9239.6152.7833.505
148AA_A63C64:G80U81_AA0.102-1.2464.07813.267-6.78434.331-0.7872.1074.015-10.88-21.27837.336
169AA_A111G112:C93U94_AA-0.459-1.1573.2852.70515.96730.861-4.1811.1482.37327.739-4.69934.76
174AA_A116G117:C134U135_AA-1.289-1.7643.8335.305-3.08233.136-2.463.2323.732-5.346-9.20433.684
179AA_A257C258:G274G275_AA1.919-2.2633.243-5.73711.20752.587-3.116-2.4322.5412.4486.37253.969
197AA_A287G288:C297G298_AA1.33-1.1193.266-7.807-4.53866.089-0.841-1.5163.172-4.1417.12466.633
155AA_A295G73:U75A291_AA-3.218-3.498-3.126-32.622.2187.453-2.0022.76-2.71915.43522.65694.274
183AA_A300G301:C284G285_AA0.624-0.6143.2635.36610.19155.01-1.229-0.363.15610.9-5.73956.11
187AA_A304A305:U280U281_AA0.103-1.5142.886-1.2673.33334.46-2.984-0.3412.7275.6082.13234.638
188AA_A305G306:C279U280_AA-0.049-2.0512.985-0.1673.94527.691-5.0570.0682.6738.1890.34727.966
191AA_A308C309:G328U329_AA-0.123-0.7723.217-2.5224.71336.057-1.87-0.1423.0977.5634.04736.438
193AA_A310G311:C326U327_AA0.275-1.4712.966-0.5092.32530.038-3.251-0.6212.8424.4780.98130.13
1100AA_A330G331:A390A336_AA2.275-0.3922.17320.281-12.385-38.4181.0633.8780.77916.98927.821-44.937
117AA_A339U340:A19U20_AA0.33-0.6583.0346.7128.49331.728-2.4220.4392.78114.999-11.85333.479
120AA_A342C343:G16U17_AA0.406-1.4692.8710.3135.09931.509-3.454-0.692.6119.313-0.57131.91
1101AA_A353C354:G375U376_AA-0.646-1.434.9482.6064.54425.156-5.0912.5284.53410.291-5.90225.687
114AA_A385C386:G46G47_AA-0.0140.7593.043-2.083.898-9.598-9.912-3.1622.483-21.839-11.651-10.564
199AA_A389A330:A336U337_AA-0.4320.283.234-11.87715.05137.8850.0630.1623.2588.0526.355138.5
16AA_C7A8:U407G408_AA-0.417-2.3312.6452.48213.64735.879-4.7050.8451.65121.202-3.85638.385
110AA_C11U12:A403G404_AA-0.262-1.3083.995-6.35915.13430.658-4.855-0.6783.03326.38411.08734.683
112AA_C13G14:U400G402_AA3.679-1.9493.722-26.68210.13525.098-3.773-7.693-0.57217.57646.2737.835
127AA_C23U24:A43G44_AA-0.056-2.1233.479-6.17913.35734.673-4.955-0.6812.49621.2669.83837.579
130AA_C26G27:C40G41_AA-0.234-2.1493.0695.2850.031.68-3.8851.3092.9920.001-9.59832.106
133AA_C29C30:G37G38_AA0.135-1.2433.1541.9488.47730.124-3.7650.0872.71515.898-3.65431.327
134AA_C30G31:C36G37_AA0.173-2.7243.653.03718.95323.669-8.3870.1811.19939.008-6.25130.387
138AA_C53C54:G394G395_AA-0.618-2.7833.436-5.266-5.74425.531-4.288-0.2594.001-12.62811.57726.675
139AA_C54A55:U393G394_AA0.516-1.9883.472-1.60111.87831.527-5.276-1.1392.54920.9372.82333.674
143AA_C58U59:A253G254_AA-0.012-1.9513.868-6.1998.5925.875-6.276-1.5873.00218.23913.16327.925
145AA_C60G61:C251G252_AA-0.106-1.4873.7480.44319.92629.791-5.3630.2382.3334.345-0.76435.717
147AA_C62A63:U81G250_AA-0.407-3.8062.121-18.28220.41137.744-5.547-0.120.28327.56524.6946.347
149AA_C64G65:C79G80_AA-0.28-2.1362.84-7.34910.34528.543-5.491-0.5581.97619.79214.0631.183
153AA_C69U70:A74G76_AA-3.549-0.7992.5086.0341.39257.748-0.8763.8862.1411.437-6.22858.05
157AA_C88G89:C247G248_AA-0.202-1.3752.91913.5810.65428.033-3.9182.251.98219.797-25.23532.83
167AA_C109U110:A95G96_AA-1.2-1.7382.9961.9015.34423.498-5.5873.3772.44212.883-4.58424.163
173AA_C115A116:U135G136_AA0.241-1.814.501-11.42511.82237.715-4.249-1.9543.58417.31716.73641.023
176AA_C118C119:G132G133_AA0.018-1.1533.4962.81914.17535.052-3.6150.3372.8322.394-4.45437.828
165AA_C193C194:G236G237_AA-0.578-1.5543.3995.965.19937.162-3.0481.6453.0368.046-9.22337.965
180AA_C258C259:G273G274_AA-0.303-2.5382.897-0.859.86935.359-5.0950.392.14215.8671.36736.678
181AA_C259C260:G272G273_AA0.33-2.2683.721-0.4757.23534.35-4.92-0.6233.18712.0830.79335.084
182AA_C260A262:A271G272_AA-1.9-2.3276.21215.168-3.31275.207-1.6972.3645.883-2.687-12.30376.56
192AA_C309A310:U327G328_AA-0.137-2.2692.9252.16713.70429.888-5.7610.5191.73224.949-3.94432.885
196AA_C313G314:A323G324_AA1.098-0.0083.1835.9223.63258.133-0.196-0.8173.2653.723-6.07158.51
121AA_C343C344:G15G16_AA-0.143-1.3113.1278.46819.71433.544-3.9031.0581.99830.584-13.13839.652
122AA_C344G345:U384G15_AA3.934-1.5483.28-25.6064.64239.909-2.173-6.2530.6026.08433.55647.352
124AA_C346C347:G382G383_AA-0.694-2.4284.039-4.2074.01828.504-5.8930.2753.7318.0558.43329.079
125AA_C347G348:A381G382_AA-0.156-0.6723.291-0.4410.03256.877-0.7070.1393.2910.0330.46356.879
115AA_C386A387:A49G46_AA1.198-2.4343.3823.366-3.28873.289-1.924-0.8883.517-2.752-2.81773.418
19AA_G10C11:G404C405_AA0.483-1.7383.4345.831.14438.639-2.7430.0163.4171.716-8.74839.076
113AA_G14A385:G47U400_AA3.242.9963.825-0.482-28.896160.3821.601-1.6443.69-14.6530.245161.009
129AA_G25C26:G41U42_AA-0.244-1.3553.216-10.6851.52641.646-1.999-0.7133.1342.10414.73342.962
131AA_G27G28:C39C40_AA0.482-2.2973.5593.7065.79526.818-6.243-0.0863.04312.24-7.82827.67
132AA_G28C29:G38C39_AA0.722-1.6623.553-2.47521.69245.749-3.47-1.0212.53226.2192.99250.438
137AA_G51C53:G395C396_AA-1.565-1.1193.1424.32215.45552.688-2.0451.932.61716.972-4.74754.91
142AA_G57C58:G254C391_AA2.398-0.8974.819-1.29515.37660.085-1.902-2.4194.44715.0881.2761.855
146AA_G61C62:G250C251_AA-0.241-1.12.743-4.879.9131.05-3.287-0.2352.30417.8218.75732.91
150AA_G65G66:C78C79_AA-0.265-1.8873.6034.88814.87739.214-4.1640.8742.69521.17-6.95642.111
151AA_G66G68:C77C78_AA-1.274-1.3473.302-7.461-3.07238.41-1.6180.9513.572-4.60811.1939.217
152AA_G68C69:G76C77_AA-0.39-2.0583.354-0.853-2.89940.926-2.6060.4593.493-4.141.21841.033
158AA_G89U90:A246C247_AA-0.291-0.6663.056-3.9716.12133.673-2.005-0.0792.90810.4156.75734.432
160AA_G91G139:C244C245_AA0.193-4.6064.2085.1644.60412.248-23.4044.3592.23619.655-22.04914.06
166AA_G108C109:G96C97_AA0.245-1.7143.402-4.0475.56633.825-3.749-1.0393.0419.4456.86734.498
170AA_G112G113:C92C93_AA0.251-0.483.264.34215.76826.383-3.850.3432.58231.043-8.54930.964
171AA_G113G114:C138C92_AA-0.861-3.392.123-32.3337.87630.838-4.898-0.8281.49811.44146.96945.071
172AA_G114C115:G136C138_AA1.645-2.7013.8658.083-2.81748.408-2.986-1.2234.212-3.404-9.76849.114
175AA_G117C118:G133C134_AA-0.212-1.1313.212-4.226-1.41832.527-1.759-0.3453.258-2.5177.532.823
161AA_G139G140:C243C244_AA0.62-1.1933.0646.4993.31335.686-2.343-0.1443.0085.337-10.4736.4
162AA_G140G190:C242C243_AA-4.18-1.3923.9364.4821.82567.676-1.3283.9443.6521.637-4.01967.829
177AA_G142G143:C183C184_AA-0.748-1.7334.116-1.76519.6434.428-5.190.872.830.3032.72339.527
178AA_G143G144:C182C183_AA2.459-2.4024.77113.0211.19527.336-4.994-0.4515.2662.364-25.76530.248
163AA_G190U191:A241C242_AA0.722-1.8843.0263.2564.41629.9-4.387-0.7932.7868.468-6.24530.388
198AA_G288G289:A296C297_AA-1.443-0.853.64117.8911.09656.775-0.9172.4163.0851.122-18.31759.312
184AA_G301G302:C283C284_AA0.196-2.2212.829-9.2225.26231.556-4.589-1.5842.2939.35116.38833.251
185AA_G302G303:C282C283_AA0.287-2.262.7975.0527.66736.539-4.2930.0762.31111.997-7.90537.637
186AA_G303A304:U281C282_AA0.411-1.7023.2370.3690.50127.425-3.711-0.7763.2111.056-0.77927.432
189AA_G306G307:C278C279_AA-0.051-2.3823.5080.8424.75438.634-4.1690.1823.2027.151-1.26738.923
190AA_G307A308:U329C278_AA-0.425-2.5293.2791.0642.24824.584-6.5721.3053.0185.263-2.4924.707
194AA_G311G312:C325C326_AA0.3-1.9123.5456.7435.96130.232-4.6760.7553.11411.123-12.58331.513
195AA_G312C313:G324C325_AA0.899-1.9063.6763.1120.61238.223-2.987-0.9293.7060.932-4.74338.35
116AA_G338A339:U20C21_AA-0.545-1.1732.838-7.3196.92333.514-2.843-0.0342.6111.68212.3534.954
123AA_G345C346:G383U384_AA-0.788-1.1833.2594.6783.6354.675-1.4921.1253.1093.939-5.07754.97
126AA_G348G349:A380A381_AA0.825-0.5443.29811.2731.64942.119-0.8980.0173.3782.246-15.35143.565
11AA_U2U3:A412A413_AA-0.591-1.884.0035.5138.52627.56-5.7772.5033.1217.175-11.10529.337
12AA_U3A4:U411A412_AA-1.293-0.8572.8749.244-0.00925.601-1.8224.6352.277-0.019-20.04627.193
15AA_U6C7:G408A409_AA0.047-2.0394.0353.0348.66333.974-4.8750.4473.4214.5-5.07935.157
18AA_U9G10:C405A406_AA0.294-2.1562.971-1.7511.02631.597-5.197-0.7422.10219.5033.09533.464
111AA_U12C13:G402A403_AA0.287-1.9162.5868.9712.15334.239-4.1310.3911.84119.508-14.39937.331
128AA_U24G25:U42A43_AA0.026-1.6863.0283.4113.78225.185-5.8410.5561.8628.866-7.14128.855
141AA_U56G57:C391A392_AA-0.24-2.1732.247-6.549-4.30127.722-3.654-0.6112.537-8.75713.33528.787
144AA_U59C60:G252A253_AA-0.456-0.3423.062-0.5298.86537.673-1.5270.6282.91713.50.80638.669
154AA_U70A295:A291A74_AA-3.1921.4250.67560.358163.61597.230.4771.6840.6682.464-30.421176.294
156AA_U87C88:G248A249_AA-0.016-1.474.043-5.67520.59833.788-4.848-0.7182.71531.8048.76339.809
159AA_U90G91:C245A246_AA0.059-0.7983.9543.21520.0836.234-3.6230.3163.1129.598-4.73941.383
168AA_U110A111:U94A95_AA0.548-1.5583.730.08214.1530.673-5.087-0.9322.76625.139-0.14633.708
164AA_U191C193:G237A241_AA1.737-2.9025.345-11.2437.83975.232-2.711-1.9254.816.3719.13776.288
118AA_U340U341:A18A19_AA-0.021-1.2113.3651.62210.64627.372-4.5910.3772.70921.473-3.27229.377
119AA_U341A342:U17A18_AA-0.385-1.3123.827-1.33620.18929.671-5.2220.4212.4834.7952.30335.785

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.