1
23
1 2 3 4 5 6 7 8 9 10
11 12 13 14 15 16 17 18 19 20
21 22 23
GGGAUACUGC UUCGGUAAGU CCC
LOOP1
11
14
Crystallography ?
? Angstroms
1
G
O3'
-3.365 -22.355 -7.107
2
G
P
-4.250 -21.015 -7.253
O3'
-6.346 -18.306 -3.019
3
G
P
-6.813 -16.792 -3.312
O3'
-6.488 -13.256 0.907
4
A
P
-6.835 -11.699 0.679
O3'
-4.674 -8.136 4.324
5
U
P
-4.978 -6.554 4.264
O3'
-0.438 -2.314 5.115
6
A
P
-0.452 -0.887 5.859
O3'
3.848 0.129 8.405
7
C
P
3.750 1.660 7.915
O3'
7.917 3.482 5.335
8
U
P
7.547 4.892 4.648
O3'
10.977 6.006 0.437
9
G
P
10.786 7.552 0.030
O3'
9.748 9.223 -4.579
10
C
P
9.766 10.762 -4.103
O3'
6.364 14.230 -5.941
11
U
P
6.832 15.528 -5.108
O3'
3.013 18.624 -3.199
12
U
P
3.290 19.813 -2.149
O3'
-2.086 21.252 -1.258
13
C
P
-2.343 21.645 0.284
O3'
-2.867 16.458 3.226
14
G
P
-1.897 15.198 2.917
O3'
-5.843 11.385 2.866
15
G
P
-5.303 10.329 3.960
O3'
-7.286 6.089 0.745
16
U
P
-6.889 4.529 0.827
O3'
-5.619 2.673 -4.244
17
A
P
-5.931 1.107 -4.031
O3'
-1.427 0.360 -8.084
18
A
P
-1.549 0.031 -9.656
O3'
3.082 -2.115 -10.858
19
G
P
3.179 -3.498 -10.038
O3'
8.221 -3.880 -7.627
20
U
P
8.336 -5.446 -7.271
O3'
9.590 -6.597 -2.157
21
C
P
9.803 -8.175 -1.910
O3'
8.293 -10.299 2.680
22
C
P
8.732 -11.850 2.695
O3'
6.711 -15.553 5.495
23
C
P
7.626 -16.867 5.321
O3'
6.909 -21.606 5.102
14
syn
1
23
+
+
c
2
22
+
+
c
3
21
+
+
c
4
20
-
-
c
5
7
S
H
c
6
20
W
S
t
7
19
+
+
c
8
18
-
-
c
9
16
W
W
c
10
15
+
+
c
17
18
S
H
c
10
14
!
!
!
5
6
!
!
!
1
23
4
7
19
2
9
16
2
SG1
5
6
SG2
11
14
SG3
17
17
1
116.232 0.000
2
116.232 45.847
3
116.232 91.693
4
116.232 137.540
5
116.232 183.387
6
116.232 229.233
7
116.232 275.080
8
116.232 320.926
9
116.232 412.620
10
116.232 458.466
11
122.432 510.685
12
87.509 550.000
13
34.923 550.000
14
0.000 510.685
15
6.200 458.466
16
6.200 412.620
17
6.200 366.773
18
6.200 320.926
19
6.200 275.080
20
6.200 137.540
21
6.200 91.693
22
6.200 45.847
23
6.200 0.000