0.042481
0.000000
0.000000
0.000000
0.025733
0.000000
0.000000
0.000000
0.015022
0.00000
0.00000
0.00000
Yoon, C.
Dickerson, R.E.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
8
90.00
90.00
90.00
23.540
38.860
66.570
C10 H14 N5 O6 P
331.222
y
2'-DEOXYADENOSINE-5'-MONOPHOSPHATE
DNA linking
C9 H14 N3 O7 P
307.197
y
2'-DEOXYCYTIDINE-5'-MONOPHOSPHATE
DNA linking
C10 H14 N5 O7 P
347.221
y
2'-DEOXYGUANOSINE-5'-MONOPHOSPHATE
DNA linking
C10 H15 N2 O8 P
322.208
y
THYMIDINE-5'-MONOPHOSPHATE
DNA linking
H2 O
18.015
WATER
non-polymer
N
1
N
O
N
2
N
P
N
3
N
O
N
4
N
O
N
5
N
O
N
6
N
C
N
7
R
C
N
8
N
O
N
9
S
C
N
10
N
O
N
11
N
C
N
12
R
C
Y
13
N
N
Y
14
N
C
Y
15
N
N
Y
16
N
C
Y
17
N
C
N
18
N
N
Y
19
N
N
Y
20
N
C
Y
21
N
N
Y
22
N
C
N
23
N
H
N
24
N
H
N
25
N
H
N
26
N
H
N
27
N
H
N
28
N
H
N
29
N
H
N
30
N
H
N
31
N
H
N
32
N
H
N
33
N
H
N
34
N
H
N
35
N
H
N
36
N
H
N
37
N
O
N
38
N
P
N
39
N
O
N
40
N
O
N
41
N
O
N
42
N
C
N
43
R
C
N
44
N
O
N
45
S
C
N
46
N
O
N
47
N
C
N
48
R
C
N
49
N
N
N
50
N
C
N
51
N
O
N
52
N
N
N
53
N
C
N
54
N
N
N
55
N
C
N
56
N
C
N
57
N
H
N
58
N
H
N
59
N
H
N
60
N
H
N
61
N
H
N
62
N
H
N
63
N
H
N
64
N
H
N
65
N
H
N
66
N
H
N
67
N
H
N
68
N
H
N
69
N
H
N
70
N
H
N
71
N
O
N
72
N
P
N
73
N
O
N
74
N
O
N
75
N
O
N
76
N
C
N
77
R
C
N
78
N
O
N
79
S
C
N
80
N
O
N
81
N
C
N
82
R
C
Y
83
N
N
Y
84
N
C
Y
85
N
N
Y
86
N
C
N
87
N
C
N
88
N
O
N
89
N
N
N
90
N
C
N
91
N
N
N
92
N
N
Y
93
N
C
N
94
N
H
N
95
N
H
N
96
N
H
N
97
N
H
N
98
N
H
N
99
N
H
N
100
N
H
N
101
N
H
N
102
N
H
N
103
N
H
N
104
N
H
N
105
N
H
N
106
N
H
N
107
N
H
N
108
N
O
N
109
N
P
N
110
N
O
N
111
N
O
N
112
N
O
N
113
N
C
N
114
R
C
N
115
N
O
N
116
S
C
N
117
N
O
N
118
N
C
N
119
R
C
N
120
N
N
N
121
N
C
N
122
N
O
N
123
N
N
N
124
N
C
N
125
N
O
N
126
N
C
N
127
N
C
N
128
N
C
N
129
N
H
N
130
N
H
N
131
N
H
N
132
N
H
N
133
N
H
N
134
N
H
N
135
N
H
N
136
N
H
N
137
N
H
N
138
N
H
N
139
N
H
N
140
N
H
N
141
N
H
N
142
N
H
N
143
N
H
N
144
N
O
N
145
N
H
N
146
N
H
N
1
N
sing
N
2
N
sing
N
3
N
doub
N
4
N
sing
N
5
N
sing
N
6
N
sing
N
7
N
sing
N
8
N
sing
N
9
N
sing
N
10
N
sing
N
11
N
sing
N
12
N
sing
N
13
N
sing
N
14
N
sing
N
15
N
sing
N
16
N
sing
N
17
N
sing
N
18
N
sing
N
19
N
sing
N
20
N
sing
N
21
N
sing
N
22
N
sing
N
23
N
sing
Y
24
N
sing
Y
25
N
sing
Y
26
N
doub
N
27
N
sing
Y
28
N
sing
Y
29
N
sing
Y
30
N
doub
N
31
N
sing
Y
32
N
doub
N
33
N
sing
N
34
N
sing
Y
35
N
sing
Y
36
N
doub
N
37
N
sing
Y
38
N
sing
N
39
N
sing
N
40
N
sing
N
41
N
doub
N
42
N
sing
N
43
N
sing
N
44
N
sing
N
45
N
sing
N
46
N
sing
N
47
N
sing
N
48
N
sing
N
49
N
sing
N
50
N
sing
N
51
N
sing
N
52
N
sing
N
53
N
sing
N
54
N
sing
N
55
N
sing
N
56
N
sing
N
57
N
sing
N
58
N
sing
N
59
N
sing
N
60
N
sing
N
61
N
sing
N
62
N
sing
N
63
N
sing
N
64
N
doub
N
65
N
sing
N
66
N
doub
N
67
N
sing
N
68
N
sing
N
69
N
sing
N
70
N
sing
N
71
N
doub
N
72
N
sing
N
73
N
sing
N
74
N
sing
N
75
N
sing
N
76
N
doub
N
77
N
sing
N
78
N
sing
N
79
N
sing
N
80
N
sing
N
81
N
sing
N
82
N
sing
N
83
N
sing
N
84
N
sing
N
85
N
sing
N
86
N
sing
N
87
N
sing
N
88
N
sing
N
89
N
sing
N
90
N
sing
N
91
N
sing
N
92
N
sing
N
93
N
sing
N
94
N
sing
N
95
N
sing
N
96
N
sing
Y
97
N
sing
Y
98
N
sing
Y
99
N
doub
N
100
N
sing
Y
101
N
sing
N
102
N
sing
Y
103
N
doub
N
104
N
doub
N
105
N
sing
N
106
N
sing
N
107
N
sing
N
108
N
sing
N
109
N
doub
N
110
N
sing
N
111
N
sing
N
112
N
sing
N
113
N
sing
N
114
N
sing
N
115
N
doub
N
116
N
sing
N
117
N
sing
N
118
N
sing
N
119
N
sing
N
120
N
sing
N
121
N
sing
N
122
N
sing
N
123
N
sing
N
124
N
sing
N
125
N
sing
N
126
N
sing
N
127
N
sing
N
128
N
sing
N
129
N
sing
N
130
N
sing
N
131
N
sing
N
132
N
sing
N
133
N
sing
N
134
N
sing
N
135
N
sing
N
136
N
sing
N
137
N
sing
N
138
N
doub
N
139
N
sing
N
140
N
sing
N
141
N
sing
N
142
N
doub
N
143
N
sing
N
144
N
sing
N
145
N
doub
N
146
N
sing
N
147
N
sing
N
148
N
sing
N
149
N
sing
N
150
N
sing
N
151
N
sing
US
Proc.Natl.Acad.Sci.USA
PNASA6
0040
0027-8424
85
6332
6336
10.1073/pnas.85.17.6332
3413099
Structure of an alternating-B DNA helix and its relationship to A-tract DNA.
1988
10.2210/pdb1dn9/pdb
pdb_00001dn9
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
279.00
1
AREA DETECTOR
SDMS
x-ray
1
1.0
3662.404
DNA (5'-D(*CP*GP*CP*AP*TP*AP*TP*AP*TP*GP*CP*G)-3')
2
syn
polymer
18.015
water
43
nat
water
no
no
(DC)(DG)(DC)(DA)(DT)(DA)(DT)(DA)(DT)(DG)(DC)(DG)
CGCATATATGCG
A,B
polydeoxyribonucleotide
n
n
n
n
n
n
n
n
n
n
n
n
2.08
40.82
VAPOR DIFFUSION
VAPOR DIFFUSION
WATER
1
MPD
1
MG ACETATE
1
SPERMINE
1
WATER
2
MPD
2
17.875
1
19
A
1
B
24
-1.353
A_DC1:DG24_B
1
-10.719
1.025
-0.237
-0.310
-2.362
1
19
A
2
B
23
3.073
A_DG2:DC23_B
2
-6.328
-0.557
0.270
-0.127
-5.098
1
19
A
3
B
22
1.697
A_DC3:DG22_B
3
-7.720
-0.174
0.233
-0.383
3.316
1
20
A
4
B
21
3.993
A_DA4:DT21_B
4
-7.976
-0.547
0.024
-0.486
6.345
1
20
A
5
B
20
4.620
A_DT5:DA20_B
5
-8.497
-0.305
0.663
-0.335
-14.030
1
20
A
6
B
19
-1.404
A_DA6:DT19_B
6
-18.350
-1.231
0.187
0.012
-3.245
1
A
7
B
18
15.061
A_DT7:DA18_B
7
-12.422
-0.466
0.366
0.029
-8.405
1
20
A
8
B
17
-1.713
A_DA8:DT17_B
8
-19.634
-0.122
-0.105
-0.421
-2.459
1
20
A
9
B
16
4.292
A_DT9:DA16_B
9
-20.988
0.408
0.114
-0.270
1.558
1
19
A
10
B
15
-0.209
A_DG10:DC15_B
10
-8.892
-0.985
0.168
-0.551
0.044
1
19
A
11
B
14
-6.143
A_DC11:DG14_B
11
-23.293
0.614
0.696
-0.473
7.043
1
19
A
12
B
13
-5.000
A_DG12:DC13_B
12
22.732
0.343
-0.664
-0.201
3.924
32.038
A
A
1
2
12.115
B
B
24
23
3.902
6.640
0.175
0.517
AA_DC1DG2:DC23DG24_BB
1
-0.411
0.749
31.357
-0.511
-0.407
3.445
38.114
A
A
2
3
-5.193
B
B
23
22
3.481
-3.384
0.298
0.413
AA_DG2DC3:DG22DC23_BB
2
2.570
-3.944
37.885
1.087
-0.111
3.219
33.928
A
A
3
4
9.290
B
B
22
21
3.167
5.399
0.268
0.543
AA_DC3DA4:DT21DG22_BB
3
0.952
-1.639
33.495
0.079
-0.309
3.277
33.400
A
A
4
5
-1.013
B
B
21
20
3.301
-0.582
0.427
-0.510
AA_DA4DT5:DA20DT21_BB
4
-2.078
3.618
33.332
-0.791
-1.090
3.527
35.963
A
A
5
6
-0.483
B
B
20
19
3.637
-0.296
-0.232
-0.773
AA_DT5DA6:DT19DA20_BB
5
7.263
-11.841
35.244
-1.205
1.522
2.935
32.253
A
A
6
7
4.245
B
B
19
18
3.000
2.356
0.955
-0.650
AA_DA6DT7:DA18DT19_BB
6
-0.390
0.703
32.167
-1.551
-1.782
3.432
44.820
A
A
7
8
5.646
B
B
18
17
3.408
4.299
-1.060
0.594
AA_DT7DA8:DT17DA18_BB
7
0.724
-0.951
44.618
0.370
1.459
3.110
37.161
A
A
8
9
-12.604
B
B
17
16
3.161
-7.974
-0.201
-0.067
AA_DA8DT9:DA16DT17_BB
8
-0.797
1.260
36.317
0.926
0.212
3.479
26.349
A
A
9
10
21.804
B
B
16
15
3.362
9.680
0.213
1.131
AA_DT9DG10:DC15DA16_BB
9
-3.708
8.353
24.258
-0.345
-1.549
3.306
53.691
A
A
10
11
-23.912
B
B
15
14
3.721
-20.997
-1.338
0.868
AA_DG10DC11:DG14DC15_BB
10
-9.189
10.465
48.885
2.451
0.830
3.155
37.680
A
A
11
12
-15.885
B
B
14
13
3.236
-10.006
0.903
0.353
AA_DC11DG12:DC13DG14_BB
11
10.762
-17.086
34.793
1.869
0.024
chem_comp_atom
chem_comp_bond
database_2
repository
Initial release
Version format compliance
Version format compliance
Data collection
Database references
1
0
1990-04-15
1
1
2008-05-22
1
2
2011-07-13
1
3
2024-02-07
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
BNL
Y
BNL
1989-04-25
REL
REL
HOH
water
HOH
27
2
HOH
HOH
27
A
HOH
28
2
HOH
HOH
28
A
HOH
31
2
HOH
HOH
31
A
HOH
36
2
HOH
HOH
36
A
HOH
38
2
HOH
HOH
38
A
HOH
39
2
HOH
HOH
39
A
HOH
41
2
HOH
HOH
41
A
HOH
42
2
HOH
HOH
42
A
HOH
46
2
HOH
HOH
46
A
HOH
47
2
HOH
HOH
47
A
HOH
48
2
HOH
HOH
48
A
HOH
49
2
HOH
HOH
49
A
HOH
50
2
HOH
HOH
50
A
HOH
54
2
HOH
HOH
54
A
HOH
55
2
HOH
HOH
55
A
HOH
56
2
HOH
HOH
56
A
HOH
57
2
HOH
HOH
57
A
HOH
64
2
HOH
HOH
64
A
HOH
65
2
HOH
HOH
65
A
HOH
25
2
HOH
HOH
25
B
HOH
26
2
HOH
HOH
26
B
HOH
29
2
HOH
HOH
29
B
HOH
30
2
HOH
HOH
30
B
HOH
32
2
HOH
HOH
32
B
HOH
33
2
HOH
HOH
33
B
HOH
34
2
HOH
HOH
34
B
HOH
35
2
HOH
HOH
35
B
HOH
37
2
HOH
HOH
37
B
HOH
40
2
HOH
HOH
40
B
HOH
43
2
HOH
HOH
43
B
HOH
44
2
HOH
HOH
44
B
HOH
45
2
HOH
HOH
45
B
HOH
51
2
HOH
HOH
51
B
HOH
52
2
HOH
HOH
52
B
HOH
53
2
HOH
HOH
53
B
HOH
58
2
HOH
HOH
58
B
HOH
59
2
HOH
HOH
59
B
HOH
60
2
HOH
HOH
60
B
HOH
61
2
HOH
HOH
61
B
HOH
62
2
HOH
HOH
62
B
HOH
63
2
HOH
HOH
63
B
HOH
66
2
HOH
HOH
66
B
HOH
67
2
HOH
HOH
67
B
C
1
n
1
DC
1
A
G
2
n
2
DG
2
A
C
3
n
3
DC
3
A
A
4
n
4
DA
4
A
T
5
n
5
DT
5
A
A
6
n
6
DA
6
A
T
7
n
7
DT
7
A
A
8
n
8
DA
8
A
T
9
n
9
DT
9
A
G
10
n
10
DG
10
A
C
11
n
11
DC
11
A
G
12
n
12
DG
12
A
C
13
n
1
DC
13
B
G
14
n
2
DG
14
B
C
15
n
3
DC
15
B
A
16
n
4
DA
16
B
T
17
n
5
DT
17
B
A
18
n
6
DA
18
B
T
19
n
7
DT
19
B
A
20
n
8
DA
20
B
T
21
n
9
DT
21
B
G
22
n
10
DG
22
B
C
23
n
11
DC
23
B
G
24
n
12
DG
24
B
author_defined_assembly
2
dimeric
1.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
1_555
x,y,z
identity operation
0.0000000000
0.0000000000
0.0000000000
1
11.19
1.20
119.70
130.89
A
A
A
C3'
O3'
P
DC
DC
DG
1
1
2
Y
1
6.71
1.10
110.50
117.21
A
A
A
O3'
P
OP2
DC
DG
DG
1
2
2
Y
1
-9.55
1.50
119.60
110.05
A
A
A
OP1
P
OP2
DG
DG
DG
2
2
2
N
1
7.33
0.30
108.30
115.63
A
A
A
O4'
C1'
N9
DG
DG
DG
2
2
2
N
1
3.61
0.50
111.50
115.11
A
A
A
C5
C6
N1
DG
DG
DG
2
2
2
N
1
-10.63
1.50
119.60
108.97
A
A
A
OP1
P
OP2
DC
DC
DC
3
3
3
N
1
8.54
1.20
110.70
119.24
A
A
A
O5'
P
OP1
DC
DC
DC
3
3
3
N
1
7.77
0.30
108.30
116.07
A
A
A
O4'
C1'
N1
DC
DC
DC
3
3
3
N
1
-6.26
0.80
109.40
103.14
A
A
A
O5'
C5'
C4'
DA
DA
DA
4
4
4
N
1
6.36
0.30
108.30
114.66
A
A
A
O4'
C1'
N9
DA
DA
DA
4
4
4
N
1
4.56
0.30
108.30
112.86
A
A
A
O4'
C1'
N1
DT
DT
DT
5
5
5
N
1
-4.43
0.60
127.20
122.77
A
A
A
C2
N3
C4
DT
DT
DT
5
5
5
N
1
4.75
0.60
115.20
119.95
A
A
A
N3
C4
C5
DT
DT
DT
5
5
5
N
1
3.98
0.60
119.00
122.98
A
A
A
C4
C5
C7
DT
DT
DT
5
5
5
N
1
-11.81
0.80
109.40
97.59
A
A
A
O5'
C5'
C4'
DA
DA
DA
6
6
6
N
1
-11.52
1.60
120.90
109.38
A
A
A
P
O5'
C5'
DA
DA
DA
6
6
6
N
1
2.58
0.30
108.30
110.88
A
A
A
O4'
C1'
N9
DA
DA
DA
6
6
6
N
1
4.33
0.60
118.60
122.93
A
A
A
C6
N1
C2
DA
DA
DA
6
6
6
N
1
-3.22
0.50
129.30
126.08
A
A
A
N1
C2
N3
DA
DA
DA
6
6
6
N
1
-3.45
0.50
117.70
114.25
A
A
A
C5
C6
N1
DA
DA
DA
6
6
6
N
1
4.58
0.60
118.60
123.18
A
A
A
N1
C6
N6
DA
DA
DA
6
6
6
N
1
8.18
1.20
110.70
118.88
A
A
A
O5'
P
OP1
DT
DT
DT
7
7
7
N
1
13.97
1.60
120.90
134.87
A
A
A
P
O5'
C5'
DT
DT
DT
7
7
7
N
1
-6.33
1.00
110.10
103.77
A
A
A
C1'
O4'
C4'
DT
DT
DT
7
7
7
N
1
-5.30
0.60
127.20
121.90
A
A
A
C2
N3
C4
DT
DT
DT
7
7
7
N
1
4.81
0.60
115.20
120.01
A
A
A
N3
C4
C5
DT
DT
DT
7
7
7
N
1
17.70
1.20
119.70
137.40
A
A
A
C3'
O3'
P
DT
DT
DA
7
7
8
Y
1
-10.79
1.50
119.60
108.81
A
A
A
OP1
P
OP2
DA
DA
DA
8
8
8
N
1
-5.21
0.80
109.40
104.19
A
A
A
O5'
C5'
C4'
DA
DA
DA
8
8
8
N
1
-5.25
0.70
108.00
102.75
A
A
A
O4'
C1'
N9
DA
DA
DA
8
8
8
N
1
3.80
0.60
118.60
122.40
A
A
A
C6
N1
C2
DA
DA
DA
8
8
8
N
1
-3.88
0.50
129.30
125.42
A
A
A
N1
C2
N3
DA
DA
DA
8
8
8
N
1
9.57
1.20
110.70
120.27
A
A
A
O5'
P
OP1
DT
DT
DT
9
9
9
N
1
-12.62
1.60
120.90
108.28
A
A
A
P
O5'
C5'
DT
DT
DT
9
9
9
N
1
-4.60
0.60
127.20
122.60
A
A
A
C2
N3
C4
DT
DT
DT
9
9
9
N
1
3.69
0.60
115.20
118.89
A
A
A
N3
C4
C5
DT
DT
DT
9
9
9
N
1
-13.83
1.60
120.90
107.07
A
A
A
P
O5'
C5'
DG
DG
DG
10
10
10
N
1
-2.96
0.40
104.50
101.54
A
A
A
O4'
C4'
C3'
DG
DG
DG
10
10
10
N
1
-4.30
0.70
102.20
97.90
A
A
A
C4'
C3'
C2'
DG
DG
DG
10
10
10
N
1
-5.34
0.80
102.40
97.06
A
A
A
C3'
C2'
C1'
DG
DG
DG
10
10
10
N
1
2.24
0.30
108.30
110.54
A
A
A
O4'
C1'
N9
DG
DG
DG
10
10
10
N
1
3.94
0.50
111.50
115.44
A
A
A
C5
C6
N1
DG
DG
DG
10
10
10
N
1
9.90
1.20
119.70
129.60
A
A
A
C3'
O3'
P
DG
DG
DC
10
10
11
Y
1
-5.44
0.80
109.40
103.96
A
A
A
O5'
C5'
C4'
DC
DC
DC
11
11
11
N
1
9.97
1.20
110.70
120.67
A
A
A
O5'
P
OP1
DG
DG
DG
12
12
12
N
1
-6.84
0.80
109.40
102.56
A
A
A
O5'
C5'
C4'
DG
DG
DG
12
12
12
N
1
2.03
0.30
108.30
110.33
B
B
B
O4'
C1'
N1
DC
DC
DC
13
13
13
N
1
18.14
1.20
119.70
137.84
B
B
B
C3'
O3'
P
DC
DC
DG
13
13
14
Y
1
-9.75
1.50
119.60
109.85
B
B
B
OP1
P
OP2
DG
DG
DG
14
14
14
N
1
-7.46
0.80
109.40
101.94
B
B
B
O5'
C5'
C4'
DG
DG
DG
14
14
14
N
1
-5.63
0.70
102.20
96.57
B
B
B
C4'
C3'
C2'
DG
DG
DG
14
14
14
N
1
-9.51
0.80
102.40
92.89
B
B
B
C3'
C2'
C1'
DG
DG
DG
14
14
14
N
1
8.23
0.30
108.30
116.53
B
B
B
O4'
C1'
N9
DG
DG
DG
14
14
14
N
1
-8.34
0.80
109.40
101.06
B
B
B
O5'
C5'
C4'
DC
DC
DC
15
15
15
N
1
-12.36
1.60
120.90
108.54
B
B
B
P
O5'
C5'
DC
DC
DC
15
15
15
N
1
9.48
1.20
119.70
129.18
B
B
B
C3'
O3'
P
DC
DC
DA
15
15
16
Y
1
3.76
0.30
108.30
112.06
B
B
B
O4'
C1'
N9
DA
DA
DA
16
16
16
N
1
-8.53
0.80
109.40
100.87
B
B
B
O5'
C5'
C4'
DT
DT
DT
17
17
17
N
1
-11.21
1.60
120.90
109.69
B
B
B
P
O5'
C5'
DT
DT
DT
17
17
17
N
1
-11.00
0.80
102.40
91.40
B
B
B
C3'
C2'
C1'
DT
DT
DT
17
17
17
N
1
-6.52
0.80
105.90
99.38
B
B
B
O4'
C1'
C2'
DT
DT
DT
17
17
17
N
1
11.02
0.30
108.30
119.32
B
B
B
O4'
C1'
N1
DT
DT
DT
17
17
17
N
1
3.65
0.60
114.60
118.25
B
B
B
N1
C2
N3
DT
DT
DT
17
17
17
N
1
-5.31
0.60
127.20
121.89
B
B
B
C2
N3
C4
DT
DT
DT
17
17
17
N
1
4.60
0.60
115.20
119.80
B
B
B
N3
C4
C5
DT
DT
DT
17
17
17
N
1
-4.58
0.60
119.90
115.32
B
B
B
N3
C4
O4
DT
DT
DT
17
17
17
N
1
-6.85
0.80
109.40
102.55
B
B
B
O5'
C5'
C4'
DA
DA
DA
18
18
18
N
1
-10.70
1.60
120.90
110.20
B
B
B
P
O5'
C5'
DA
DA
DA
18
18
18
N
1
2.99
0.30
108.30
111.29
B
B
B
O4'
C1'
N9
DA
DA
DA
18
18
18
N
1
-3.51
0.50
129.30
125.79
B
B
B
N1
C2
N3
DA
DA
DA
18
18
18
N
1
-10.37
0.80
109.40
99.03
B
B
B
O5'
C5'
C4'
DT
DT
DT
19
19
19
N
1
-10.71
1.60
120.90
110.19
B
B
B
P
O5'
C5'
DT
DT
DT
19
19
19
N
1
-4.30
0.60
127.20
122.90
B
B
B
C2
N3
C4
DT
DT
DT
19
19
19
N
1
9.25
1.20
119.70
128.95
B
B
B
C3'
O3'
P
DT
DT
DA
19
19
20
Y
1
-10.11
1.50
119.60
109.49
B
B
B
OP1
P
OP2
DA
DA
DA
20
20
20
N
1
3.66
0.30
108.30
111.96
B
B
B
O4'
C1'
N9
DA
DA
DA
20
20
20
N
1
-3.64
0.50
129.30
125.66
B
B
B
N1
C2
N3
DA
DA
DA
20
20
20
N
1
-11.75
0.80
109.40
97.65
B
B
B
O5'
C5'
C4'
DT
DT
DT
21
21
21
N
1
-5.13
0.60
127.20
122.07
B
B
B
C2
N3
C4
DT
DT
DT
21
21
21
N
1
4.71
0.60
115.20
119.91
B
B
B
N3
C4
C5
DT
DT
DT
21
21
21
N
1
10.58
1.20
119.70
130.28
B
B
B
C3'
O3'
P
DT
DT
DG
21
21
22
Y
1
-18.46
1.60
120.90
102.44
B
B
B
P
O5'
C5'
DG
DG
DG
22
22
22
N
1
2.07
0.30
108.30
110.37
B
B
B
O4'
C1'
N9
DG
DG
DG
22
22
22
N
1
-6.36
0.80
109.40
103.04
B
B
B
O5'
C5'
C4'
DC
DC
DC
23
23
23
N
1
-10.06
1.60
120.90
110.84
B
B
B
P
O5'
C5'
DC
DC
DC
23
23
23
N
1
5.14
0.30
108.30
113.44
B
B
B
O4'
C1'
N1
DC
DC
DC
23
23
23
N
1
A
A
O4'
C4'
DA
DA
6
6
-0.066
0.010
1.446
1.380
N
1
A
A
O4'
C1'
DT
DT
7
7
0.073
0.011
1.420
1.493
N
1
A
A
O4'
C1'
DA
DA
8
8
0.100
0.011
1.420
1.520
N
1
B
B
C2'
C1'
DG
DG
14
14
0.060
0.010
1.519
1.579
N
1
B
B
C2'
C1'
DT
DT
17
17
0.066
0.010
1.519
1.585
N
1
B
B
O4'
C4'
DA
DA
18
18
-0.070
0.010
1.446
1.376
N
1
B
B
O4'
C4'
DA
DA
20
20
-0.061
0.010
1.446
1.385
N
1
B
B
O4'
C4'
DT
DT
21
21
-0.074
0.010
1.446
1.372
N
1
B
B
C4
O4
DT
DT
21
21
0.056
0.009
1.228
1.284
N
1
B
B
P
O5'
DG
DG
22
22
0.066
0.010
1.593
1.659
N
1
B
B
O4'
C4'
DG
DG
24
24
-0.064
0.010
1.446
1.382
N
0.1890000
0.1890000
2.200
8.000
1915
1
0.500
TR
isotropic
TR
isotropic
2.200
8.000
43
529
0
486
0
fix
fix
2.200
8.000
1DN9
2994
1
refinement
X-PLOR
STRUCTURE OF AN ALTERNATING-B DNA HELIX AND ITS RELATIONSHIP TO A-TRACT DNA
1
N
N
1
N
N
2
N
N
2
N
N
hydrog
WATSON-CRICK
A
DC
1
A
N3
DC
1
1_555
B
DG
24
B
N1
DG
12
1_555
hydrog
WATSON-CRICK
A
DC
1
A
N4
DC
1
1_555
B
DG
24
B
O6
DG
12
1_555
hydrog
WATSON-CRICK
A
DC
1
A
O2
DC
1
1_555
B
DG
24
B
N2
DG
12
1_555
hydrog
WATSON-CRICK
A
DG
2
A
N1
DG
2
1_555
B
DC
23
B
N3
DC
11
1_555
hydrog
WATSON-CRICK
A
DG
2
A
N2
DG
2
1_555
B
DC
23
B
O2
DC
11
1_555
hydrog
WATSON-CRICK
A
DG
2
A
O6
DG
2
1_555
B
DC
23
B
N4
DC
11
1_555
hydrog
WATSON-CRICK
A
DC
3
A
N3
DC
3
1_555
B
DG
22
B
N1
DG
10
1_555
hydrog
WATSON-CRICK
A
DC
3
A
N4
DC
3
1_555
B
DG
22
B
O6
DG
10
1_555
hydrog
WATSON-CRICK
A
DC
3
A
O2
DC
3
1_555
B
DG
22
B
N2
DG
10
1_555
hydrog
WATSON-CRICK
A
DA
4
A
N1
DA
4
1_555
B
DT
21
B
N3
DT
9
1_555
hydrog
WATSON-CRICK
A
DA
4
A
N6
DA
4
1_555
B
DT
21
B
O4
DT
9
1_555
hydrog
WATSON-CRICK
A
DT
5
A
N3
DT
5
1_555
B
DA
20
B
N1
DA
8
1_555
hydrog
WATSON-CRICK
A
DT
5
A
O4
DT
5
1_555
B
DA
20
B
N6
DA
8
1_555
hydrog
WATSON-CRICK
A
DA
6
A
N1
DA
6
1_555
B
DT
19
B
N3
DT
7
1_555
hydrog
WATSON-CRICK
A
DA
6
A
N6
DA
6
1_555
B
DT
19
B
O4
DT
7
1_555
hydrog
DT-DA PAIR
A
DT
7
A
N3
DT
7
1_555
B
DA
18
B
N1
DA
6
1_555
hydrog
WATSON-CRICK
A
DA
8
A
N1
DA
8
1_555
B
DT
17
B
N3
DT
5
1_555
hydrog
WATSON-CRICK
A
DA
8
A
N6
DA
8
1_555
B
DT
17
B
O4
DT
5
1_555
hydrog
WATSON-CRICK
A
DT
9
A
N3
DT
9
1_555
B
DA
16
B
N1
DA
4
1_555
hydrog
WATSON-CRICK
A
DT
9
A
O4
DT
9
1_555
B
DA
16
B
N6
DA
4
1_555
hydrog
WATSON-CRICK
A
DG
10
A
N1
DG
10
1_555
B
DC
15
B
N3
DC
3
1_555
hydrog
WATSON-CRICK
A
DG
10
A
N2
DG
10
1_555
B
DC
15
B
O2
DC
3
1_555
hydrog
WATSON-CRICK
A
DG
10
A
O6
DG
10
1_555
B
DC
15
B
N4
DC
3
1_555
hydrog
WATSON-CRICK
A
DC
11
A
N3
DC
11
1_555
B
DG
14
B
N1
DG
2
1_555
hydrog
WATSON-CRICK
A
DC
11
A
N4
DC
11
1_555
B
DG
14
B
O6
DG
2
1_555
hydrog
WATSON-CRICK
A
DC
11
A
O2
DC
11
1_555
B
DG
14
B
N2
DG
2
1_555
hydrog
WATSON-CRICK
A
DG
12
A
N1
DG
12
1_555
B
DC
13
B
N3
DC
1
1_555
hydrog
WATSON-CRICK
A
DG
12
A
N2
DG
12
1_555
B
DC
13
B
O2
DC
1
1_555
hydrog
WATSON-CRICK
A
DG
12
A
O6
DG
12
1_555
B
DC
13
B
N4
DC
1
1_555
DNA
B-DNA, DOUBLE HELIX, DNA
1DN9
PDB
1
1DN9
1
12
1DN9
1
12
1DN9
A
1
1
12
13
24
1DN9
13
24
1DN9
B
1
1
12
19
P 21 21 21