0.009219
0.000000
0.000000
0.000000
0.009219
0.000000
0.000000
0.000000
0.004058
0.00000
0.00000
0.00000
Stahley, M.R.
Strobel, S.A.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
8
90.00
90.00
90.00
108.466
108.466
246.400
C10 H15 N2 O9 P
338.208
n
5-METHYLURIDINE 5'-MONOPHOSPHATE
RNA linking
C10 H14 N5 O7 P
347.221
y
ADENOSINE-5'-MONOPHOSPHATE
RNA linking
C10 H13 N5 O9 P2
409.186
n
ADENOSINE-5'-PHOSPHATE-2',3'-CYCLIC PHOSPHATE
RNA linking
C3 H7 N O2
89.093
y
ALANINE
L-peptide linking
C6 H15 N4 O2 1
175.209
y
ARGININE
L-peptide linking
C4 H8 N2 O3
132.118
y
ASPARAGINE
L-peptide linking
C4 H7 N O4
133.103
y
ASPARTIC ACID
L-peptide linking
C9 H14 N3 O8 P
323.197
y
CYTIDINE-5'-MONOPHOSPHATE
RNA linking
C10 H14 N5 O8 P
363.221
y
GUANOSINE-5'-MONOPHOSPHATE
RNA linking
C5 H10 N2 O3
146.144
y
GLUTAMINE
L-peptide linking
C5 H9 N O4
147.129
y
GLUTAMIC ACID
L-peptide linking
C2 H5 N O2
75.067
y
GLYCINE
peptide linking
C10 H16 N5 O14 P3
523.180
n
GUANOSINE-5'-TRIPHOSPHATE
non-polymer
C6 H10 N3 O2 1
156.162
y
HISTIDINE
L-peptide linking
H2 O
18.015
WATER
non-polymer
C6 H13 N O2
131.173
y
ISOLEUCINE
L-peptide linking
K 1
39.098
POTASSIUM ION
non-polymer
C6 H13 N O2
131.173
y
LEUCINE
L-peptide linking
C6 H15 N2 O2 1
147.195
y
LYSINE
L-peptide linking
C5 H11 N O2 S
149.211
y
METHIONINE
L-peptide linking
Mg 2
24.305
MAGNESIUM ION
non-polymer
C9 H11 N O2
165.189
y
PHENYLALANINE
L-peptide linking
C5 H9 N O2
115.130
y
PROLINE
L-peptide linking
C3 H7 N O3
105.093
y
SERINE
L-peptide linking
C4 H9 N O3
119.119
y
THREONINE
L-peptide linking
C9 H11 N O3
181.189
y
TYROSINE
L-peptide linking
C9 H13 N2 O9 P
324.181
y
URIDINE-5'-MONOPHOSPHATE
RNA linking
C5 H11 N O2
117.146
y
VALINE
L-peptide linking
N
1
N
N
N
2
N
C
N
3
N
N
N
4
N
C
N
5
N
C
N
6
N
C
N
7
N
C
N
8
N
O
N
9
N
O
N
10
R
C
N
11
R
C
N
12
N
O
N
13
S
C
N
14
R
C
N
15
N
O
N
16
N
O
N
17
N
C
N
18
N
O
N
19
N
P
N
20
N
O
N
21
N
O
N
22
N
O
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
H
N
38
N
O
N
39
N
P
N
40
N
O
N
41
N
O
N
42
N
O
N
43
N
C
N
44
R
C
N
45
N
O
N
46
S
C
N
47
N
O
N
48
R
C
N
49
N
O
N
50
R
C
Y
51
N
N
Y
52
N
C
Y
53
N
N
Y
54
N
C
Y
55
N
C
N
56
N
N
Y
57
N
N
Y
58
N
C
Y
59
N
N
Y
60
N
C
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
H
N
72
N
H
N
73
N
H
N
74
N
H
N
75
S
P
N
76
N
O
N
77
N
O
N
78
N
P
N
79
N
O
N
80
N
O
N
81
N
O
N
82
N
O
N
83
N
C
N
84
R
C
N
85
N
O
N
86
R
C
N
87
N
O
N
88
R
C
N
89
N
O
N
90
R
C
Y
91
N
N
Y
92
N
C
Y
93
N
N
Y
94
N
C
Y
95
N
C
N
96
N
N
Y
97
N
N
Y
98
N
C
Y
99
N
N
Y
100
N
C
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
H
N
109
N
H
N
110
N
H
N
111
N
H
N
112
N
H
N
113
N
H
N
114
N
N
N
115
S
C
N
116
N
C
N
117
N
O
N
118
N
C
N
119
N
O
N
120
N
H
N
121
N
H
N
122
N
H
N
123
N
H
N
124
N
H
N
125
N
H
N
126
N
H
N
127
N
N
N
128
S
C
N
129
N
C
N
130
N
O
N
131
N
C
N
132
N
C
N
133
N
C
N
134
N
N
N
135
N
C
N
136
N
N
N
137
N
N
N
138
N
O
N
139
N
H
N
140
N
H
N
141
N
H
N
142
N
H
N
143
N
H
N
144
N
H
N
145
N
H
N
146
N
H
N
147
N
H
N
148
N
H
N
149
N
H
N
150
N
H
N
151
N
H
N
152
N
H
N
153
N
H
N
154
N
N
N
155
S
C
N
156
N
C
N
157
N
O
N
158
N
C
N
159
N
C
N
160
N
O
N
161
N
N
N
162
N
O
N
163
N
H
N
164
N
H
N
165
N
H
N
166
N
H
N
167
N
H
N
168
N
H
N
169
N
H
N
170
N
H
N
171
N
N
N
172
S
C
N
173
N
C
N
174
N
O
N
175
N
C
N
176
N
C
N
177
N
O
N
178
N
O
N
179
N
O
N
180
N
H
N
181
N
H
N
182
N
H
N
183
N
H
N
184
N
H
N
185
N
H
N
186
N
H
N
187
N
O
N
188
N
P
N
189
N
O
N
190
N
O
N
191
N
O
N
192
N
C
N
193
R
C
N
194
N
O
N
195
S
C
N
196
N
O
N
197
R
C
N
198
N
O
N
199
R
C
N
200
N
N
N
201
N
C
N
202
N
O
N
203
N
N
N
204
N
C
N
205
N
N
N
206
N
C
N
207
N
C
N
208
N
H
N
209
N
H
N
210
N
H
N
211
N
H
N
212
N
H
N
213
N
H
N
214
N
H
N
215
N
H
N
216
N
H
N
217
N
H
N
218
N
H
N
219
N
H
N
220
N
H
N
221
N
H
N
222
N
O
N
223
N
P
N
224
N
O
N
225
N
O
N
226
N
O
N
227
N
C
N
228
R
C
N
229
N
O
N
230
S
C
N
231
N
O
N
232
R
C
N
233
N
O
N
234
R
C
Y
235
N
N
Y
236
N
C
Y
237
N
N
Y
238
N
C
N
239
N
C
N
240
N
O
N
241
N
N
N
242
N
C
N
243
N
N
N
244
N
N
Y
245
N
C
N
246
N
H
N
247
N
H
N
248
N
H
N
249
N
H
N
250
N
H
N
251
N
H
N
252
N
H
N
253
N
H
N
254
N
H
N
255
N
H
N
256
N
H
N
257
N
H
N
258
N
H
N
259
N
H
N
260
N
N
N
261
S
C
N
262
N
C
N
263
N
O
N
264
N
C
N
265
N
C
N
266
N
C
N
267
N
O
N
268
N
N
N
269
N
O
N
270
N
H
N
271
N
H
N
272
N
H
N
273
N
H
N
274
N
H
N
275
N
H
N
276
N
H
N
277
N
H
N
278
N
H
N
279
N
H
N
280
N
N
N
281
S
C
N
282
N
C
N
283
N
O
N
284
N
C
N
285
N
C
N
286
N
C
N
287
N
O
N
288
N
O
N
289
N
O
N
290
N
H
N
291
N
H
N
292
N
H
N
293
N
H
N
294
N
H
N
295
N
H
N
296
N
H
N
297
N
H
N
298
N
H
N
299
N
N
N
300
N
C
N
301
N
C
N
302
N
O
N
303
N
O
N
304
N
H
N
305
N
H
N
306
N
H
N
307
N
H
N
308
N
H
N
309
N
P
N
310
N
O
N
311
N
O
N
312
N
O
N
313
N
O
N
314
N
P
N
315
N
O
N
316
N
O
N
317
N
O
N
318
N
P
N
319
N
O
N
320
N
O
N
321
N
O
N
322
N
C
N
323
R
C
N
324
N
O
N
325
S
C
N
326
N
O
N
327
R
C
N
328
N
O
N
329
R
C
Y
330
N
N
Y
331
N
C
Y
332
N
N
Y
333
N
C
N
334
N
C
N
335
N
O
N
336
N
N
N
337
N
C
N
338
N
N
N
339
N
N
Y
340
N
C
N
341
N
H
N
342
N
H
N
343
N
H
N
344
N
H
N
345
N
H
N
346
N
H
N
347
N
H
N
348
N
H
N
349
N
H
N
350
N
H
N
351
N
H
N
352
N
H
N
353
N
H
N
354
N
H
N
355
N
H
N
356
N
H
N
357
N
N
N
358
S
C
N
359
N
C
N
360
N
O
N
361
N
C
Y
362
N
C
Y
363
N
N
Y
364
N
C
Y
365
N
C
Y
366
N
N
N
367
N
O
N
368
N
H
N
369
N
H
N
370
N
H
N
371
N
H
N
372
N
H
N
373
N
H
N
374
N
H
N
375
N
H
N
376
N
H
N
377
N
H
N
378
N
O
N
379
N
H
N
380
N
H
N
381
N
N
N
382
S
C
N
383
N
C
N
384
N
O
N
385
S
C
N
386
N
C
N
387
N
C
N
388
N
C
N
389
N
O
N
390
N
H
N
391
N
H
N
392
N
H
N
393
N
H
N
394
N
H
N
395
N
H
N
396
N
H
N
397
N
H
N
398
N
H
N
399
N
H
N
400
N
H
N
401
N
H
N
402
N
H
N
403
N
K
N
404
N
N
N
405
S
C
N
406
N
C
N
407
N
O
N
408
N
C
N
409
N
C
N
410
N
C
N
411
N
C
N
412
N
O
N
413
N
H
N
414
N
H
N
415
N
H
N
416
N
H
N
417
N
H
N
418
N
H
N
419
N
H
N
420
N
H
N
421
N
H
N
422
N
H
N
423
N
H
N
424
N
H
N
425
N
H
N
426
N
N
N
427
S
C
N
428
N
C
N
429
N
O
N
430
N
C
N
431
N
C
N
432
N
C
N
433
N
C
N
434
N
N
N
435
N
O
N
436
N
H
N
437
N
H
N
438
N
H
N
439
N
H
N
440
N
H
N
441
N
H
N
442
N
H
N
443
N
H
N
444
N
H
N
445
N
H
N
446
N
H
N
447
N
H
N
448
N
H
N
449
N
H
N
450
N
H
N
451
N
N
N
452
S
C
N
453
N
C
N
454
N
O
N
455
N
C
N
456
N
C
N
457
N
S
N
458
N
C
N
459
N
O
N
460
N
H
N
461
N
H
N
462
N
H
N
463
N
H
N
464
N
H
N
465
N
H
N
466
N
H
N
467
N
H
N
468
N
H
N
469
N
H
N
470
N
H
N
471
N
MG
N
472
N
N
N
473
S
C
N
474
N
C
N
475
N
O
N
476
N
C
Y
477
N
C
Y
478
N
C
Y
479
N
C
Y
480
N
C
Y
481
N
C
Y
482
N
C
N
483
N
O
N
484
N
H
N
485
N
H
N
486
N
H
N
487
N
H
N
488
N
H
N
489
N
H
N
490
N
H
N
491
N
H
N
492
N
H
N
493
N
H
N
494
N
H
N
495
N
N
N
496
S
C
N
497
N
C
N
498
N
O
N
499
N
C
N
500
N
C
N
501
N
C
N
502
N
O
N
503
N
H
N
504
N
H
N
505
N
H
N
506
N
H
N
507
N
H
N
508
N
H
N
509
N
H
N
510
N
H
N
511
N
H
N
512
N
N
N
513
S
C
N
514
N
C
N
515
N
O
N
516
N
C
N
517
N
O
N
518
N
O
N
519
N
H
N
520
N
H
N
521
N
H
N
522
N
H
N
523
N
H
N
524
N
H
N
525
N
H
N
526
N
N
N
527
S
C
N
528
N
C
N
529
N
O
N
530
R
C
N
531
N
O
N
532
N
C
N
533
N
O
N
534
N
H
N
535
N
H
N
536
N
H
N
537
N
H
N
538
N
H
N
539
N
H
N
540
N
H
N
541
N
H
N
542
N
H
N
543
N
N
N
544
S
C
N
545
N
C
N
546
N
O
N
547
N
C
Y
548
N
C
Y
549
N
C
Y
550
N
C
Y
551
N
C
Y
552
N
C
Y
553
N
C
N
554
N
O
N
555
N
O
N
556
N
H
N
557
N
H
N
558
N
H
N
559
N
H
N
560
N
H
N
561
N
H
N
562
N
H
N
563
N
H
N
564
N
H
N
565
N
H
N
566
N
H
N
567
N
O
N
568
N
P
N
569
N
O
N
570
N
O
N
571
N
O
N
572
N
C
N
573
R
C
N
574
N
O
N
575
S
C
N
576
N
O
N
577
R
C
N
578
N
O
N
579
R
C
N
580
N
N
N
581
N
C
N
582
N
O
N
583
N
N
N
584
N
C
N
585
N
O
N
586
N
C
N
587
N
C
N
588
N
H
N
589
N
H
N
590
N
H
N
591
N
H
N
592
N
H
N
593
N
H
N
594
N
H
N
595
N
H
N
596
N
H
N
597
N
H
N
598
N
H
N
599
N
H
N
600
N
H
N
601
N
N
N
602
S
C
N
603
N
C
N
604
N
O
N
605
N
C
N
606
N
C
N
607
N
C
N
608
N
O
N
609
N
H
N
610
N
H
N
611
N
H
N
612
N
H
N
613
N
H
N
614
N
H
N
615
N
H
N
616
N
H
N
617
N
H
N
618
N
H
N
619
N
H
N
1
N
sing
N
2
N
sing
N
3
N
sing
N
4
N
sing
N
5
N
doub
N
6
N
sing
N
7
N
sing
N
8
N
sing
N
9
N
doub
N
10
N
sing
N
11
N
doub
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
N
24
N
sing
N
25
N
sing
N
26
N
sing
N
27
N
sing
N
28
N
sing
N
29
N
sing
N
30
N
sing
N
31
N
sing
N
32
N
sing
N
33
N
sing
N
34
N
doub
N
35
N
sing
N
36
N
sing
N
37
N
sing
N
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
Y
63
N
sing
Y
64
N
sing
Y
65
N
doub
N
66
N
sing
Y
67
N
sing
Y
68
N
sing
Y
69
N
doub
N
70
N
sing
Y
71
N
doub
N
72
N
sing
N
73
N
sing
Y
74
N
sing
Y
75
N
doub
N
76
N
sing
Y
77
N
sing
N
78
N
doub
N
79
N
sing
N
80
N
sing
N
81
N
sing
N
82
N
sing
N
83
N
doub
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
N
97
N
sing
N
98
N
sing
N
99
N
sing
N
100
N
sing
N
101
N
sing
N
102
N
sing
N
103
N
sing
N
104
N
sing
Y
105
N
sing
Y
106
N
sing
Y
107
N
doub
N
108
N
sing
Y
109
N
sing
Y
110
N
sing
Y
111
N
doub
N
112
N
sing
Y
113
N
doub
N
114
N
sing
N
115
N
sing
Y
116
N
sing
Y
117
N
doub
N
118
N
sing
Y
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
doub
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
sing
N
143
N
sing
N
144
N
sing
N
145
N
sing
N
146
N
sing
N
147
N
sing
N
148
N
sing
N
149
N
sing
N
150
N
sing
N
151
N
sing
N
152
N
doub
N
153
N
sing
N
154
N
sing
N
155
N
sing
N
156
N
sing
N
157
N
sing
N
158
N
sing
N
159
N
sing
N
160
N
sing
N
161
N
sing
N
162
N
sing
N
163
N
sing
N
164
N
doub
N
165
N
sing
N
166
N
sing
N
167
N
sing
N
168
N
sing
N
169
N
doub
N
170
N
sing
N
171
N
sing
N
172
N
sing
N
173
N
sing
N
174
N
sing
N
175
N
sing
N
176
N
sing
N
177
N
sing
N
178
N
sing
N
179
N
sing
N
180
N
doub
N
181
N
sing
N
182
N
sing
N
183
N
sing
N
184
N
sing
N
185
N
doub
N
186
N
sing
N
187
N
sing
N
188
N
sing
N
189
N
sing
N
190
N
sing
N
191
N
doub
N
192
N
sing
N
193
N
sing
N
194
N
sing
N
195
N
sing
N
196
N
sing
N
197
N
sing
N
198
N
sing
N
199
N
sing
N
200
N
sing
N
201
N
sing
N
202
N
sing
N
203
N
sing
N
204
N
sing
N
205
N
sing
N
206
N
sing
N
207
N
sing
N
208
N
sing
N
209
N
sing
N
210
N
sing
N
211
N
sing
N
212
N
sing
N
213
N
sing
N
214
N
sing
N
215
N
doub
N
216
N
sing
N
217
N
doub
N
218
N
sing
N
219
N
sing
N
220
N
sing
N
221
N
sing
N
222
N
doub
N
223
N
sing
N
224
N
sing
N
225
N
sing
N
226
N
sing
N
227
N
doub
N
228
N
sing
N
229
N
sing
N
230
N
sing
N
231
N
sing
N
232
N
sing
N
233
N
sing
N
234
N
sing
N
235
N
sing
N
236
N
sing
N
237
N
sing
N
238
N
sing
N
239
N
sing
N
240
N
sing
N
241
N
sing
N
242
N
sing
N
243
N
sing
N
244
N
sing
N
245
N
sing
N
246
N
sing
N
247
N
sing
N
248
N
sing
Y
249
N
sing
Y
250
N
sing
Y
251
N
doub
N
252
N
sing
Y
253
N
sing
N
254
N
sing
Y
255
N
doub
N
256
N
doub
N
257
N
sing
N
258
N
sing
N
259
N
sing
N
260
N
sing
N
261
N
doub
N
262
N
sing
N
263
N
sing
N
264
N
sing
N
265
N
sing
N
266
N
sing
N
267
N
sing
N
268
N
sing
N
269
N
sing
N
270
N
sing
N
271
N
doub
N
272
N
sing
N
273
N
sing
N
274
N
sing
N
275
N
sing
N
276
N
sing
N
277
N
sing
N
278
N
sing
N
279
N
doub
N
280
N
sing
N
281
N
sing
N
282
N
sing
N
283
N
sing
N
284
N
sing
N
285
N
sing
N
286
N
sing
N
287
N
sing
N
288
N
sing
N
289
N
sing
N
290
N
doub
N
291
N
sing
N
292
N
sing
N
293
N
sing
N
294
N
sing
N
295
N
sing
N
296
N
sing
N
297
N
sing
N
298
N
doub
N
299
N
sing
N
300
N
sing
N
301
N
sing
N
302
N
sing
N
303
N
sing
N
304
N
sing
N
305
N
sing
N
306
N
sing
N
307
N
sing
N
308
N
doub
N
309
N
sing
N
310
N
sing
N
311
N
doub
N
312
N
sing
N
313
N
sing
N
314
N
sing
N
315
N
sing
N
316
N
sing
N
317
N
sing
N
318
N
doub
N
319
N
sing
N
320
N
sing
N
321
N
sing
N
322
N
sing
N
323
N
doub
N
324
N
sing
N
325
N
sing
N
326
N
sing
N
327
N
sing
N
328
N
sing
N
329
N
sing
N
330
N
sing
N
331
N
sing
N
332
N
sing
N
333
N
sing
N
334
N
sing
N
335
N
sing
N
336
N
sing
N
337
N
sing
N
338
N
sing
N
339
N
sing
N
340
N
sing
N
341
N
sing
N
342
N
sing
N
343
N
sing
N
344
N
sing
Y
345
N
sing
Y
346
N
sing
Y
347
N
doub
N
348
N
sing
Y
349
N
sing
N
350
N
sing
Y
351
N
doub
N
352
N
doub
N
353
N
sing
N
354
N
sing
N
355
N
sing
N
356
N
sing
N
357
N
doub
N
358
N
sing
N
359
N
sing
N
360
N
sing
N
361
N
sing
N
362
N
sing
N
363
N
sing
N
364
N
sing
N
365
N
sing
N
366
N
sing
N
367
N
doub
N
368
N
sing
N
369
N
sing
N
370
N
sing
N
371
N
sing
Y
372
N
sing
Y
373
N
doub
Y
374
N
doub
N
375
N
sing
Y
376
N
sing
N
377
N
sing
Y
378
N
sing
N
379
N
sing
N
380
N
sing
N
381
N
sing
N
382
N
sing
N
383
N
sing
N
384
N
sing
N
385
N
sing
N
386
N
sing
N
387
N
sing
N
388
N
sing
N
389
N
sing
N
390
N
doub
N
391
N
sing
N
392
N
sing
N
393
N
sing
N
394
N
sing
N
395
N
sing
N
396
N
sing
N
397
N
sing
N
398
N
sing
N
399
N
sing
N
400
N
sing
N
401
N
sing
N
402
N
sing
N
403
N
sing
N
404
N
sing
N
405
N
sing
N
406
N
sing
N
407
N
sing
N
408
N
sing
N
409
N
sing
N
410
N
sing
N
411
N
doub
N
412
N
sing
N
413
N
sing
N
414
N
sing
N
415
N
sing
N
416
N
sing
N
417
N
sing
N
418
N
sing
N
419
N
sing
N
420
N
sing
N
421
N
sing
N
422
N
sing
N
423
N
sing
N
424
N
sing
N
425
N
sing
N
426
N
sing
N
427
N
sing
N
428
N
sing
N
429
N
sing
N
430
N
sing
N
431
N
sing
N
432
N
doub
N
433
N
sing
N
434
N
sing
N
435
N
sing
N
436
N
sing
N
437
N
sing
N
438
N
sing
N
439
N
sing
N
440
N
sing
N
441
N
sing
N
442
N
sing
N
443
N
sing
N
444
N
sing
N
445
N
sing
N
446
N
sing
N
447
N
sing
N
448
N
sing
N
449
N
sing
N
450
N
sing
N
451
N
sing
N
452
N
sing
N
453
N
sing
N
454
N
sing
N
455
N
sing
N
456
N
doub
N
457
N
sing
N
458
N
sing
N
459
N
sing
N
460
N
sing
N
461
N
sing
N
462
N
sing
N
463
N
sing
N
464
N
sing
N
465
N
sing
N
466
N
sing
N
467
N
sing
N
468
N
sing
N
469
N
sing
N
470
N
sing
N
471
N
sing
N
472
N
sing
N
473
N
sing
N
474
N
sing
N
475
N
doub
N
476
N
sing
N
477
N
sing
N
478
N
sing
N
479
N
sing
Y
480
N
doub
Y
481
N
sing
Y
482
N
sing
N
483
N
sing
Y
484
N
doub
N
485
N
sing
Y
486
N
doub
N
487
N
sing
Y
488
N
sing
N
489
N
sing
N
490
N
sing
N
491
N
sing
N
492
N
sing
N
493
N
sing
N
494
N
sing
N
495
N
sing
N
496
N
sing
N
497
N
sing
N
498
N
doub
N
499
N
sing
N
500
N
sing
N
501
N
sing
N
502
N
sing
N
503
N
sing
N
504
N
sing
N
505
N
sing
N
506
N
sing
N
507
N
sing
N
508
N
sing
N
509
N
sing
N
510
N
sing
N
511
N
sing
N
512
N
sing
N
513
N
sing
N
514
N
sing
N
515
N
doub
N
516
N
sing
N
517
N
sing
N
518
N
sing
N
519
N
sing
N
520
N
sing
N
521
N
sing
N
522
N
sing
N
523
N
sing
N
524
N
sing
N
525
N
sing
N
526
N
sing
N
527
N
sing
N
528
N
doub
N
529
N
sing
N
530
N
sing
N
531
N
sing
N
532
N
sing
N
533
N
sing
N
534
N
sing
N
535
N
sing
N
536
N
sing
N
537
N
sing
N
538
N
sing
N
539
N
sing
N
540
N
sing
N
541
N
sing
N
542
N
sing
N
543
N
sing
N
544
N
doub
N
545
N
sing
N
546
N
sing
N
547
N
sing
N
548
N
sing
Y
549
N
doub
Y
550
N
sing
Y
551
N
sing
N
552
N
sing
Y
553
N
doub
N
554
N
sing
Y
555
N
doub
N
556
N
sing
Y
557
N
sing
N
558
N
sing
N
559
N
sing
N
560
N
sing
N
561
N
sing
N
562
N
sing
N
563
N
sing
N
564
N
doub
N
565
N
sing
N
566
N
sing
N
567
N
sing
N
568
N
sing
N
569
N
sing
N
570
N
sing
N
571
N
sing
N
572
N
sing
N
573
N
sing
N
574
N
sing
N
575
N
sing
N
576
N
sing
N
577
N
sing
N
578
N
sing
N
579
N
sing
N
580
N
sing
N
581
N
sing
N
582
N
sing
N
583
N
sing
N
584
N
sing
N
585
N
sing
N
586
N
sing
N
587
N
sing
N
588
N
doub
N
589
N
sing
N
590
N
sing
N
591
N
sing
N
592
N
doub
N
593
N
sing
N
594
N
doub
N
595
N
sing
N
596
N
sing
N
597
N
sing
N
598
N
sing
N
599
N
sing
N
600
N
sing
N
601
N
sing
N
602
N
sing
N
603
N
doub
N
604
N
sing
N
605
N
sing
N
606
N
sing
N
607
N
sing
N
608
N
sing
N
609
N
sing
N
610
N
sing
N
611
N
sing
N
612
N
sing
N
613
N
sing
N
614
N
sing
US
Science
SCIEAS
0038
0036-8075
309
1587
1590
10.1126/science.1114994
16141079
Structural evidence for a two-metal-ion mechanism of group I intron splicing.
2005
UK
Nature
NATUAS
0006
0028-0836
430
45
50
10.1038/nature02642
15175762
Crystal Structure of a Self-Splicing Group I Intron with Both Exons
2004
UK
RNA
RNARFU
2122
1355-8382
10
1867
1887
10.1261/rna.7140504
15547134
Crystal Structure of a group I intron splicing intermediate
2004
US
Cell(Cambridge,Mass.)
CELLB5
0998
0092-8674
27
487
10.1016/0092-8674(81)90390-1
6101203
In vitro splicing of the ribosomal RNA precursor of tetrahymena: involvement of a guanosine nucleotide in the excision of intervening sequence
1981
UK
Nature
NATUAS
0006
0028-0836
357
173
Self-splicing intron in tRNA genes of widely divergent bacteria
1992
10.2210/pdb1zzn/pdb
pdb_00001zzn
100
1
CCD
2004-06-29
ADSC QUANTUM 315
crystal
SINGLE WAVELENGTH
M
x-ray
1
1.1
1.0
X25
NSLS
1.1
SYNCHROTRON
NSLS BEAMLINE X25
GROUP I INTRON
64057.023
197-MER
1
syn
polymer
Group I Intron, 3'-exon
7045.354
5'-R(*AP*AP*GP*CP*CP*AP*CP*AP*CP*AP*AP*AP*CP*CP*AP*GP*AP*CP*GP*GP*CP*C)-3'
1
syn
polymer
5'-exon, U-1deoxy5MU
909.623
5'-R(*CP*AP*(5MU))-3'
1
syn
polymer
11340.315
U1 SMALL NUCLEAR RIBONUCLEOPROTEIN A RNA BINDING DOMAIN
RRM 1
Y31H, Q36R
1
man
polymer
24.305
MAGNESIUM ION
5
syn
non-polymer
39.098
POTASSIUM ION
1
syn
non-polymer
18.015
water
54
nat
water
U1 snRNP protein A, U1A protein, U1-A
no
yes
(GTP)GCCGUGUGCCUUGCGCCGGGAAACCACGCAAGGGAUGGUGUCAAAUUCGGCGAAACCUAAGCGCCCGCCCGGGCG
UAUGGCAACGCCGAGCCAAGCUUCGCAGCCAUUGCACUCCGGCUGCGAUGAAGGUGUAGAGACUAGACGGCACCCACCUA
AGGCAAACGCUAUGGUGAAGGCAUAGUCCAGGGAGUGGCG(A23)
GGCCGUGUGCCUUGCGCCGGGAAACCACGCAAGGGAUGGUGUCAAAUUCGGCGAAACCUAAGCGCCCGCCCGGGCGUAUG
GCAACGCCGAGCCAAGCUUCGCAGCCAUUGCACUCCGGCUGCGAUGAAGGUGUAGAGACUAGACGGCACCCACCUAAGGC
AAACGCUAUGGUGAAGGCAUAGUCCAGGGAGUGGCGA
B
polyribonucleotide
no
no
AAGCCACACAAACCAGACGGCC
AAGCCACACAAACCAGACGGCC
C
polyribonucleotide
no
yes
CA(5MU)
CAU
D
polyribonucleotide
no
no
MAVPETRPNHTIYINNLNEKIKKDELKKSLHAIFSRFGQILDILVSRSLKMRGQAFVIFKEVSSATNALRSMQGFPFYDK
PMRIQYAKTDSDIIAKMK
MAVPETRPNHTIYINNLNEKIKKDELKKSLHAIFSRFGQILDILVSRSLKMRGQAFVIFKEVSSATNALRSMQGFPFYDK
PMRIQYAKTDSDIIAKMK
A
polypeptide(L)
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
human
Homo
Escherichia
Escherichia coli
sample
SNRPA
9606
Homo sapiens
469008
Escherichia coli BL21(DE3)
BL21(DE3)
plasmid
pet11
1
4.6
69.8
VAPOR DIFFUSION, HANGING DROP
6.8
MPD, sodium cacodylate, magnesium acetate, potassium chloride, cobalt heximine, pH 6.8, VAPOR DIFFUSION, HANGING DROP, temperature 298K
298
12.414
1
19
B
1
C
6
-11.479
B_GTP1:C6_C
1
25.731
0.158
-1.027
-0.307
3.148
1
19
B
5
C
5
-2.344
B_G5:C5_C
2
-13.966
-0.413
-0.297
-0.108
5.345
1
19
B
6
C
4
-7.473
B_C6:G4_C
3
-10.607
-0.028
0.359
-0.382
-5.735
1
19
B
7
C
3
-11.404
B_C7:G3_C
4
-10.230
-0.564
0.418
-0.293
-12.272
1
19
B
8
C
2
0.514
B_G8:C2_C
5
-16.237
-0.330
0.021
-0.158
-11.444
1
20
B
9
C
1
-7.682
B_U9:A1_C
6
-13.773
-0.145
0.322
-0.147
3.099
28
B
10
D
1
-18.417
B_G10:5MU1_D
7
-7.291
-1.887
1.074
-0.676
3.161
1
20
B
11
D
2
-10.517
B_U11:A2_D
8
-4.731
-0.224
1.329
-0.536
-1.084
1
19
B
12
D
3
-1.553
B_G12:C3_D
9
0.518
-0.118
0.253
-0.254
-3.682
1
19
B
13
B
37
-0.474
B_C13:G37_B
10
-23.970
0.033
0.206
-0.178
2.275
1
19
B
14
B
36
-5.991
B_C14:G36_B
11
-8.121
0.076
0.474
-0.090
-4.550
1
20
B
15
B
35
-4.574
B_U15:A35_B
12
-14.838
-0.202
0.120
0.022
0.871
1
20
B
16
B
34
2.408
B_U16:A34_B
13
8.878
-0.082
0.986
-0.031
5.649
1
19
B
17
B
33
1.235
B_G17:C33_B
14
-12.794
-0.301
-0.216
-0.133
15.889
1
19
B
18
B
32
8.068
B_C18:G32_B
15
-19.698
0.722
-0.808
-0.293
-27.980
1
19
B
19
B
31
9.009
B_G19:C31_B
16
-31.059
-0.432
0.026
0.102
-37.325
1
B
20
B
30
-14.239
B_C20:A30_B
17
-24.471
-0.547
1.981
-0.669
-5.028
1
19
B
22
B
29
-4.017
B_G22:C29_B
18
-5.232
0.405
-0.528
0.126
-2.056
1
19
B
23
B
28
10.977
B_G23:C28_B
19
-2.159
-0.307
-0.305
0.085
18.824
B
24
B
27
-8.617
B_G24:A27_B
20
6.592
7.183
0.443
-5.440
-30.631
1
19
B
83
B
61
0.901
B_G83:C61_B
21
-5.501
-0.095
-0.849
-0.036
-17.884
1
19
B
84
B
60
-1.022
B_G84:C60_B
22
-26.114
-0.123
-0.086
-0.125
-28.801
1
B
85
B
59
-45.333
B_C85:A59_B
23
-12.703
2.865
0.147
-0.524
-2.157
10
B
86
B
58
-22.142
B_A86:A58_B
24
1.559
6.524
-0.255
-4.660
6.280
B
87
B
57
-9.988
B_A87:A57_B
25
-13.774
-6.634
0.373
-3.625
33.206
1
19
B
88
B
56
12.825
B_C88:G56_B
26
-34.508
0.276
-1.706
-0.417
2.226
1
19
B
89
B
55
-6.213
B_G89:C55_B
27
-5.497
0.212
0.899
-0.181
5.262
1
19
B
90
B
54
3.167
B_C90:G54_B
28
15.457
-0.017
0.030
-0.016
26.864
1
19
B
91
B
53
0.963
B_C91:G53_B
29
-10.797
0.278
-1.359
-0.172
14.094
1
19
B
92
B
52
3.221
B_G92:C52_B
30
-8.031
-0.133
0.391
-0.078
25.694
1
20
B
93
B
51
7.312
B_A93:U51_B
31
-0.346
0.095
0.471
-0.016
-3.682
1
28
B
94
B
124
1.990
B_G94:U124_B
32
-9.081
-1.641
-0.488
-0.197
-5.248
1
19
B
95
B
123
0.744
B_C95:G123_B
33
-7.537
-0.086
0.208
-0.029
1.399
1
19
B
96
B
122
4.746
B_C96:G122_B
34
-3.191
0.066
0.134
0.138
31.483
8
B
99
B
120
-22.935
B_G99:A120_B
35
-11.020
0.344
0.068
1.629
27.974
1
19
B
100
B
119
-9.607
B_C100:G119_B
36
-18.470
-0.351
-0.288
-0.024
12.740
1
16
B
101
B
118
19.045
B_U101:U118_B
37
-15.537
-3.328
-0.020
-1.498
7.358
1
20
B
102
B
117
5.473
B_U102:A117_B
38
-1.780
-0.164
-0.213
-0.055
2.086
1
19
B
103
B
116
-0.928
B_C103:G116_B
39
1.924
-0.108
0.490
-0.039
-0.579
1
19
B
104
B
115
-0.257
B_G104:C115_B
40
8.857
-0.378
-0.011
-0.082
38.898
1
19
B
105
B
114
-0.337
B_C105:G114_B
41
-9.234
-0.002
-1.684
-0.188
-33.693
1
20
B
106
B
113
11.716
B_A106:U113_B
42
24.171
-0.088
1.459
-0.457
2.044
1
19
B
1001
B
1014
-5.233
B_C1001:G1014_B
43
-6.794
-0.147
0.736
-0.173
-8.998
B
64
B
63
2.107
B_A64:A63_B
44
-3.312
-6.189
0.585
0.414
-8.294
1
28
B
65
B
80
1.688
B_G65:U80_B
45
4.200
-0.941
0.206
-0.358
3.100
1
19
B
66
B
79
0.873
B_C66:G79_B
46
-7.343
0.044
0.691
-0.278
3.891
1
19
B
67
B
78
5.251
B_G67:C78_B
47
-19.285
-0.352
-0.196
-0.025
-2.798
1
19
B
68
B
77
-1.861
B_C68:G77_B
48
-9.485
0.188
0.197
-0.025
7.006
1
19
B
69
B
76
2.241
B_C69:G76_B
49
-11.593
0.462
-0.171
-0.031
9.056
1
19
B
70
B
75
3.118
B_C70:G75_B
50
-2.239
0.274
-0.450
-0.158
7.665
9
B
72
B
73
17.674
B_C72:C73_B
51
5.394
-4.769
-0.815
1.680
22.284
1
19
B
107
B
112
-19.300
B_G107:C112_B
52
-21.252
0.456
1.245
-0.064
-4.868
1
19
B
1002
B
1013
2.289
B_C1002:G1013_B
53
-9.020
-0.026
-0.937
-0.203
-4.520
1
19
B
158
B
153
-1.154
B_G158:C153_B
54
-16.312
-0.013
0.377
-0.042
-2.082
1
19
B
159
B
152
5.876
B_C159:G152_B
55
-11.313
-0.004
-0.354
-0.113
-6.073
1
28
B
160
B
151
-14.315
B_U160:G151_B
56
-6.342
1.119
0.446
-0.604
-17.178
9
B
149
B
150
-4.193
B_A149:A150_B
57
11.565
6.275
0.520
-0.194
8.009
B
161
B
148
-63.051
B_A161:U148_B
58
-7.452
-0.986
-1.997
-1.114
4.049
1
19
B
163
B
147
-2.030
B_G163:C147_B
59
-13.595
0.050
0.105
-0.155
3.252
1
19
B
164
B
146
2.673
B_G164:C146_B
60
-7.719
-0.199
0.177
-0.073
1.886
1
20
B
165
B
145
3.265
B_U165:A145_B
61
-11.997
-0.036
-0.297
-0.140
4.409
1
19
B
166
B
144
-2.810
B_G166:C144_B
62
3.064
-0.214
0.489
-0.058
-9.845
1
19
B
41
B
143
8.399
B_G41:C143_B
63
-15.384
-0.220
-0.552
0.035
-6.056
1
19
B
42
B
142
3.986
B_G42:C142_B
64
9.321
-0.331
-0.160
-0.074
-10.565
1
20
B
43
B
141
3.246
B_U43:A141_B
65
18.175
0.064
0.637
-0.165
-12.226
1
19
B
44
B
140
12.406
B_G44:C140_B
66
-24.051
-0.511
-0.675
-0.024
-9.618
1
28
B
45
B
139
-0.768
B_U45:G139_B
67
-10.255
1.358
0.945
-0.694
18.803
1
19
B
46
B
138
6.969
B_C46:G138_B
68
-34.425
0.248
-0.623
-0.028
15.602
4
5
B
47
B
136
-103.592
B_A47:A136_B
69
15.357
4.315
0.008
1.093
2.861
1
20
B
173
B
134
-6.306
B_U173:A134_B
70
-3.898
0.260
-0.058
0.152
9.936
1
20
B
174
B
133
-6.581
B_A174:U133_B
71
-5.973
0.005
0.818
-0.180
-5.172
1
19
B
175
B
132
-1.691
B_G175:C132_B
72
-12.946
-0.247
-0.050
-0.357
2.736
1
20
B
176
B
131
4.055
B_U176:A131_B
73
-13.261
-0.018
-0.002
-0.131
-3.642
1
19
B
177
B
130
-0.465
B_C177:G130_B
74
-14.239
0.181
0.297
-0.180
13.961
1
19
B
178
B
128
-6.786
B_C178:G128_B
75
-14.196
-0.300
0.751
0.049
16.535
B
179
C
205
-15.951
B_A179:A205_C
76
-9.098
-6.126
-0.788
-2.860
-0.443
1
19
B
180
C
204
10.978
B_G180:C204_C
77
-9.985
0.482
-0.028
0.007
-11.137
1
19
B
181
C
203
-9.543
B_G181:C203_C
78
-7.208
-0.058
-0.704
-0.200
-1.764
10
B
182
C
202
-20.054
B_G182:A202_C
79
1.919
6.911
-1.038
-5.075
-12.265
8
2
B
183
C
201
-175.111
B_A183:A201_C
80
6.878
-7.264
0.909
4.292
-7.954
1
B
184
C
197
3.822
B_G184:C197_C
81
7.432
0.626
-0.430
0.535
-9.269
1
20
B
185
C
196
-7.606
B_U185:A196_C
82
-28.532
-0.035
-0.695
-0.165
-22.909
1
B
186
C
195
14.441
B_G186:C195_C
83
-24.334
0.769
-0.401
0.920
-7.594
1
19
B
187
C
194
1.054
B_G187:C194_C
84
-2.069
-1.116
-0.539
-0.192
-19.330
1
19
B
188
C
193
-0.801
B_C188:G193_C
85
23.771
0.411
0.975
-0.190
5.004
B
189
C
192
-9.943
B_G189:A192_C
86
-7.875
6.321
2.030
-5.362
4.189
30.787
B
B
1
5
-12.630
C
C
6
5
3.866
-6.609
-0.867
-1.501
BB_GTP1G5:C5C6_CC
1
-6.286
12.012
29.436
-1.200
0.086
2.702
38.350
B
B
5
6
11.115
C
C
5
4
3.201
7.231
0.024
-2.215
BB_G5C6:G4C5_CC
2
-6.156
9.462
37.198
-4.201
-0.743
2.051
24.885
B
B
6
7
23.268
C
C
4
3
3.343
9.765
-0.349
-2.678
BB_C6C7:G3G4_CC
3
-0.392
0.935
22.914
-8.736
0.709
2.027
37.802
B
B
7
8
26.898
C
C
3
2
3.148
16.843
1.107
-2.011
BB_C7G8:C2G3_CC
4
2.242
-3.580
33.893
-4.922
-1.467
3.606
39.304
B
B
8
9
-8.956
C
C
2
1
3.353
-5.993
-0.661
-1.651
BB_G8U9:A1C2_CC
5
-3.856
5.762
38.678
-1.691
0.491
1.544
24.149
B
B
9
10
24.727
C
D
1
1
2.562
9.924
-0.190
-1.858
BB_U9G10:5MU1A1_DC
6
-6.137
15.290
21.180
-6.563
-0.858
3.273
44.888
B
B
10
11
-0.461
D
D
1
2
3.300
-0.352
0.459
-1.339
BB_G10U11:A25MU1_DD
7
-3.079
4.035
44.787
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BB_U16G17:C33A34_BB
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BB_G17C18:G32C33_BB
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BB_C18G19:C31G32_BB
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BB_G19C20:A30C31_BB
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BB_G22G23:C28C29_BB
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BB_G23G24:A27C28_BB
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pdbx_unobs_or_zero_occ_atoms
software
database_2
pdbx_struct_conn_angle
pdbx_unobs_or_zero_occ_atoms
struct_conn
struct_ref_seq_dif
struct_site
chem_comp_atom
chem_comp_bond
pdbx_initial_refinement_model
repository
Initial release
Version format compliance
Version format compliance
Advisory
Refinement description
Advisory
Database references
Derived calculations
Data collection
Refinement description
1
0
2005-08-30
1
1
2008-04-30
1
2
2011-07-13
1
3
2017-10-11
1
4
2021-10-20
1
5
2023-08-23
_software.classification
_software.contact_author
_software.contact_author_email
_software.date
_software.language
_software.location
_software.name
_software.type
_software.version
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_pdbx_struct_conn_angle.ptnr1_auth_asym_id
_pdbx_struct_conn_angle.ptnr1_auth_comp_id
_pdbx_struct_conn_angle.ptnr1_auth_seq_id
_pdbx_struct_conn_angle.ptnr1_label_asym_id
_pdbx_struct_conn_angle.ptnr1_label_atom_id
_pdbx_struct_conn_angle.ptnr1_label_comp_id
_pdbx_struct_conn_angle.ptnr1_label_seq_id
_pdbx_struct_conn_angle.ptnr2_auth_asym_id
_pdbx_struct_conn_angle.ptnr2_auth_comp_id
_pdbx_struct_conn_angle.ptnr2_auth_seq_id
_pdbx_struct_conn_angle.ptnr2_label_asym_id
_pdbx_struct_conn_angle.ptnr2_label_atom_id
_pdbx_struct_conn_angle.ptnr2_label_comp_id
_pdbx_struct_conn_angle.ptnr3_auth_asym_id
_pdbx_struct_conn_angle.ptnr3_auth_comp_id
_pdbx_struct_conn_angle.ptnr3_auth_seq_id
_pdbx_struct_conn_angle.ptnr3_label_asym_id
_pdbx_struct_conn_angle.ptnr3_label_atom_id
_pdbx_struct_conn_angle.ptnr3_label_comp_id
_pdbx_struct_conn_angle.ptnr3_label_seq_id
_pdbx_struct_conn_angle.value
_struct_conn.pdbx_dist_value
_struct_conn.pdbx_leaving_atom_flag
_struct_conn.ptnr1_auth_asym_id
_struct_conn.ptnr1_auth_comp_id
_struct_conn.ptnr1_auth_seq_id
_struct_conn.ptnr1_label_asym_id
_struct_conn.ptnr1_label_atom_id
_struct_conn.ptnr1_label_comp_id
_struct_conn.ptnr1_label_seq_id
_struct_conn.ptnr2_auth_asym_id
_struct_conn.ptnr2_auth_comp_id
_struct_conn.ptnr2_auth_seq_id
_struct_conn.ptnr2_label_asym_id
_struct_conn.ptnr2_label_atom_id
_struct_conn.ptnr2_label_comp_id
_struct_conn.ptnr2_label_seq_id
_struct_ref_seq_dif.details
_struct_site.pdbx_auth_asym_id
_struct_site.pdbx_auth_comp_id
_struct_site.pdbx_auth_seq_id
Group I intron structure with both exons. dG206, dA205, dA+1 substitutions in PDB 1U6B are ribose in this new structure.
SEQUENCE
NUCLEOTIDES 1001B TO 1014B BELONG TO AN ENGINEERED
U1A LOOP AND ARE INSERTED BETWEEN GUA-107B AND
CYT-112B. THERE ARE NO NUCLEOTIDES BETWEEN GUA-1B
AND GUA-5B DUE TO A CLONING DESIGN. CHAINS B AND
C ARE TWO PARTS OF THE ORIGINAL ONE INTRON SEQUENCE
BECAUSE OF AN EXPERIMENTAL DESIGN. THE FIRST THREE
RESIDUES IN U1A PROTEIN WERE MISSING IN THE STRUCTURE.
RCSB
Y
RCSB
2005-06-14
REL
REL
MG
MAGNESIUM ION
K
POTASSIUM ION
HOH
water
RNA WAS IS TRANSCRIBED BY T7 RNA POLYMERASE. SEQUENCE FROM AZOARCUS GROUP I INTRON
sample
solid phase sythesis. Sequence from Azoarcus intron and exon sequence.
sample
Solid phase synthesis. Sequence from Azoarcus group I intron 5'-exon sequence.
sample
1U6B
PDB entry 1U6B
PDB
experimental model
MG
1
5
MG
MG
1015
B
MG
3
5
MG
MG
3
B
K
4
6
K
K
4
B
MG
5
5
MG
MG
1016
B
MG
6
5
MG
MG
1017
B
MG
2
5
MG
MG
207
C
HOH
101
7
HOH
HOH
1018
B
HOH
102
7
HOH
HOH
1019
B
HOH
103
7
HOH
HOH
1020
B
HOH
104
7
HOH
HOH
1021
B
HOH
105
7
HOH
HOH
1022
B
HOH
106
7
HOH
HOH
1023
B
HOH
107
7
HOH
HOH
1024
B
HOH
108
7
HOH
HOH
1025
B
HOH
109
7
HOH
HOH
1026
B
HOH
110
7
HOH
HOH
1027
B
HOH
111
7
HOH
HOH
1028
B
HOH
112
7
HOH
HOH
1029
B
HOH
113
7
HOH
HOH
1030
B
HOH
115
7
HOH
HOH
1031
B
HOH
116
7
HOH
HOH
1032
B
HOH
117
7
HOH
HOH
1033
B
HOH
118
7
HOH
HOH
1034
B
HOH
119
7
HOH
HOH
1035
B
HOH
121
7
HOH
HOH
1036
B
HOH
122
7
HOH
HOH
1037
B
HOH
123
7
HOH
HOH
1038
B
HOH
124
7
HOH
HOH
1039
B
HOH
125
7
HOH
HOH
1040
B
HOH
126
7
HOH
HOH
1041
B
HOH
127
7
HOH
HOH
1042
B
HOH
128
7
HOH
HOH
1043
B
HOH
130
7
HOH
HOH
1044
B
HOH
131
7
HOH
HOH
1045
B
HOH
132
7
HOH
HOH
1046
B
HOH
133
7
HOH
HOH
1047
B
HOH
134
7
HOH
HOH
1048
B
HOH
135
7
HOH
HOH
1049
B
HOH
136
7
HOH
HOH
1050
B
HOH
137
7
HOH
HOH
1051
B
HOH
138
7
HOH
HOH
1052
B
HOH
139
7
HOH
HOH
1053
B
HOH
140
7
HOH
HOH
1054
B
HOH
141
7
HOH
HOH
1055
B
HOH
142
7
HOH
HOH
1056
B
HOH
143
7
HOH
HOH
1057
B
HOH
144
7
HOH
HOH
1058
B
HOH
145
7
HOH
HOH
1059
B
HOH
146
7
HOH
HOH
1060
B
HOH
147
7
HOH
HOH
1061
B
HOH
148
7
HOH
HOH
1062
B
HOH
149
7
HOH
HOH
1063
B
HOH
150
7
HOH
HOH
1064
B
HOH
151
7
HOH
HOH
1065
B
HOH
152
7
HOH
HOH
1066
B
HOH
153
7
HOH
HOH
1067
B
HOH
154
7
HOH
HOH
1068
B
HOH
114
7
HOH
HOH
114
C
HOH
120
7
HOH
HOH
120
C
HOH
129
7
HOH
HOH
129
C
GTP
1
n
1
GTP
1
B
G
5
n
2
G
5
B
C
6
n
3
C
6
B
C
7
n
4
C
7
B
G
8
n
5
G
8
B
U
9
n
6
U
9
B
G
10
n
7
G
10
B
U
11
n
8
U
11
B
G
12
n
9
G
12
B
C
13
n
10
C
13
B
C
14
n
11
C
14
B
U
15
n
12
U
15
B
U
16
n
13
U
16
B
G
17
n
14
G
17
B
C
18
n
15
C
18
B
G
19
n
16
G
19
B
C
20
n
17
C
20
B
C
21
n
18
C
21
B
G
22
n
19
G
22
B
G
23
n
20
G
23
B
G
24
n
21
G
24
B
A
25
n
22
A
25
B
A
26
n
23
A
26
B
A
27
n
24
A
27
B
C
28
n
25
C
28
B
C
29
n
26
C
29
B
A
30
n
27
A
30
B
C
31
n
28
C
31
B
G
32
n
29
G
32
B
C
33
n
30
C
33
B
A
34
n
31
A
34
B
A
35
n
32
A
35
B
G
36
n
33
G
36
B
G
37
n
34
G
37
B
G
38
n
35
G
38
B
A
39
n
36
A
39
B
U
40
n
37
U
40
B
G
41
n
38
G
41
B
G
42
n
39
G
42
B
U
43
n
40
U
43
B
G
44
n
41
G
44
B
U
45
n
42
U
45
B
C
46
n
43
C
46
B
A
47
n
44
A
47
B
A
48
n
45
A
48
B
A
49
n
46
A
49
B
U
50
n
47
U
50
B
U
51
n
48
U
51
B
C
52
n
49
C
52
B
G
53
n
50
G
53
B
G
54
n
51
G
54
B
C
55
n
52
C
55
B
G
56
n
53
G
56
B
A
57
n
54
A
57
B
A
58
n
55
A
58
B
A
59
n
56
A
59
B
C
60
n
57
C
60
B
C
61
n
58
C
61
B
U
62
n
59
U
62
B
A
63
n
60
A
63
B
A
64
n
61
A
64
B
G
65
n
62
G
65
B
C
66
n
63
C
66
B
G
67
n
64
G
67
B
C
68
n
65
C
68
B
C
69
n
66
C
69
B
C
70
n
67
C
70
B
G
71
n
68
G
71
B
C
72
n
69
C
72
B
C
73
n
70
C
73
B
C
74
n
71
C
74
B
G
75
n
72
G
75
B
G
76
n
73
G
76
B
G
77
n
74
G
77
B
C
78
n
75
C
78
B
G
79
n
76
G
79
B
U
80
n
77
U
80
B
A
81
n
78
A
81
B
U
82
n
79
U
82
B
G
83
n
80
G
83
B
G
84
n
81
G
84
B
C
85
n
82
C
85
B
A
86
n
83
A
86
B
A
87
n
84
A
87
B
C
88
n
85
C
88
B
G
89
n
86
G
89
B
C
90
n
87
C
90
B
C
91
n
88
C
91
B
G
92
n
89
G
92
B
A
93
n
90
A
93
B
G
94
n
91
G
94
B
C
95
n
92
C
95
B
C
96
n
93
C
96
B
A
97
n
94
A
97
B
A
98
n
95
A
98
B
G
99
n
96
G
99
B
C
100
n
97
C
100
B
U
101
n
98
U
101
B
U
102
n
99
U
102
B
C
103
n
100
C
103
B
G
104
n
101
G
104
B
C
105
n
102
C
105
B
A
106
n
103
A
106
B
G
107
n
104
G
107
B
C
1001
n
105
C
1001
B
C
1002
n
106
C
1002
B
A
1003
n
107
A
1003
B
U
1004
n
108
U
1004
B
U
1005
n
109
U
1005
B
G
1006
n
110
G
1006
B
C
1007
n
111
C
1007
B
A
1008
n
112
A
1008
B
C
1009
n
113
C
1009
B
U
1010
n
114
U
1010
B
C
1011
n
115
C
1011
B
C
1012
n
116
C
1012
B
G
1013
n
117
G
1013
B
G
1014
n
118
G
1014
B
C
112
n
119
C
112
B
U
113
n
120
U
113
B
G
114
n
121
G
114
B
C
115
n
122
C
115
B
G
116
n
123
G
116
B
A
117
n
124
A
117
B
U
118
n
125
U
118
B
G
119
n
126
G
119
B
A
120
n
127
A
120
B
A
121
n
128
A
121
B
G
122
n
129
G
122
B
G
123
n
130
G
123
B
U
124
n
131
U
124
B
G
125
n
132
G
125
B
U
126
n
133
U
126
B
A
127
n
134
A
127
B
G
128
n
135
G
128
B
A
129
n
136
A
129
B
G
130
n
137
G
130
B
A
131
n
138
A
131
B
C
132
n
139
C
132
B
U
133
n
140
U
133
B
A
134
n
141
A
134
B
G
135
n
142
G
135
B
A
136
n
143
A
136
B
C
137
n
144
C
137
B
G
138
n
145
G
138
B
G
139
n
146
G
139
B
C
140
n
147
C
140
B
A
141
n
148
A
141
B
C
142
n
149
C
142
B
C
143
n
150
C
143
B
C
144
n
151
C
144
B
A
145
n
152
A
145
B
C
146
n
153
C
146
B
C
147
n
154
C
147
B
U
148
n
155
U
148
B
A
149
n
156
A
149
B
A
150
n
157
A
150
B
G
151
n
158
G
151
B
G
152
n
159
G
152
B
C
153
n
160
C
153
B
A
154
n
161
A
154
B
A
155
n
162
A
155
B
A
156
n
163
A
156
B
C
157
n
164
C
157
B
G
158
n
165
G
158
B
C
159
n
166
C
159
B
U
160
n
167
U
160
B
A
161
n
168
A
161
B
U
162
n
169
U
162
B
G
163
n
170
G
163
B
G
164
n
171
G
164
B
U
165
n
172
U
165
B
G
166
n
173
G
166
B
A
167
n
174
A
167
B
A
168
n
175
A
168
B
G
169
n
176
G
169
B
G
170
n
177
G
170
B
C
171
n
178
C
171
B
A
172
n
179
A
172
B
U
173
n
180
U
173
B
A
174
n
181
A
174
B
G
175
n
182
G
175
B
U
176
n
183
U
176
B
C
177
n
184
C
177
B
C
178
n
185
C
178
B
A
179
n
186
A
179
B
G
180
n
187
G
180
B
G
181
n
188
G
181
B
G
182
n
189
G
182
B
A
183
n
190
A
183
B
G
184
n
191
G
184
B
U
185
n
192
U
185
B
G
186
n
193
G
186
B
G
187
n
194
G
187
B
C
188
n
195
C
188
B
G
189
n
196
G
189
B
A23
190
n
197
A23
190
B
A
191
n
1
A
191
C
A
192
n
2
A
192
C
G
193
n
3
G
193
C
C
194
n
4
C
194
C
C
195
n
5
C
195
C
A
196
n
6
A
196
C
C
197
n
7
C
197
C
A
198
n
8
A
198
C
C
199
n
9
C
199
C
A
200
n
10
A
200
C
A
201
n
11
A
201
C
A
202
n
12
A
202
C
C
203
n
13
C
203
C
C
204
n
14
C
204
C
A
205
n
15
A
205
C
G
206
n
16
G
206
C
A
1
n
17
A
1
C
C
2
n
18
C
2
C
G
3
n
19
G
3
C
G
4
n
20
G
4
C
C
5
n
21
C
5
C
C
6
n
22
C
6
C
C
3
n
1
C
3
D
A
2
n
2
A
2
D
5MU
1
n
3
5MU
1
D
n
1
1
A
n
2
2
A
n
3
3
A
PRO
4
n
4
PRO
4
A
GLU
5
n
5
GLU
5
A
THR
6
n
6
THR
6
A
ARG
7
n
7
ARG
7
A
PRO
8
n
8
PRO
8
A
ASN
9
n
9
ASN
9
A
HIS
10
n
10
HIS
10
A
THR
11
n
11
THR
11
A
ILE
12
n
12
ILE
12
A
TYR
13
n
13
TYR
13
A
ILE
14
n
14
ILE
14
A
ASN
15
n
15
ASN
15
A
ASN
16
n
16
ASN
16
A
LEU
17
n
17
LEU
17
A
ASN
18
n
18
ASN
18
A
GLU
19
n
19
GLU
19
A
LYS
20
n
20
LYS
20
A
ILE
21
n
21
ILE
21
A
LYS
22
n
22
LYS
22
A
LYS
23
n
23
LYS
23
A
ASP
24
n
24
ASP
24
A
GLU
25
n
25
GLU
25
A
LEU
26
n
26
LEU
26
A
LYS
27
n
27
LYS
27
A
LYS
28
n
28
LYS
28
A
SER
29
n
29
SER
29
A
LEU
30
n
30
LEU
30
A
HIS
31
n
31
HIS
31
A
ALA
32
n
32
ALA
32
A
ILE
33
n
33
ILE
33
A
PHE
34
n
34
PHE
34
A
SER
35
n
35
SER
35
A
ARG
36
n
36
ARG
36
A
PHE
37
n
37
PHE
37
A
GLY
38
n
38
GLY
38
A
GLN
39
n
39
GLN
39
A
ILE
40
n
40
ILE
40
A
LEU
41
n
41
LEU
41
A
ASP
42
n
42
ASP
42
A
ILE
43
n
43
ILE
43
A
LEU
44
n
44
LEU
44
A
VAL
45
n
45
VAL
45
A
SER
46
n
46
SER
46
A
ARG
47
n
47
ARG
47
A
SER
48
n
48
SER
48
A
LEU
49
n
49
LEU
49
A
LYS
50
n
50
LYS
50
A
MET
51
n
51
MET
51
A
ARG
52
n
52
ARG
52
A
GLY
53
n
53
GLY
53
A
GLN
54
n
54
GLN
54
A
ALA
55
n
55
ALA
55
A
PHE
56
n
56
PHE
56
A
VAL
57
n
57
VAL
57
A
ILE
58
n
58
ILE
58
A
PHE
59
n
59
PHE
59
A
LYS
60
n
60
LYS
60
A
GLU
61
n
61
GLU
61
A
VAL
62
n
62
VAL
62
A
SER
63
n
63
SER
63
A
SER
64
n
64
SER
64
A
ALA
65
n
65
ALA
65
A
THR
66
n
66
THR
66
A
ASN
67
n
67
ASN
67
A
ALA
68
n
68
ALA
68
A
LEU
69
n
69
LEU
69
A
ARG
70
n
70
ARG
70
A
SER
71
n
71
SER
71
A
MET
72
n
72
MET
72
A
GLN
73
n
73
GLN
73
A
GLY
74
n
74
GLY
74
A
PHE
75
n
75
PHE
75
A
PRO
76
n
76
PRO
76
A
PHE
77
n
77
PHE
77
A
TYR
78
n
78
TYR
78
A
ASP
79
n
79
ASP
79
A
LYS
80
n
80
LYS
80
A
PRO
81
n
81
PRO
81
A
MET
82
n
82
MET
82
A
ARG
83
n
83
ARG
83
A
ILE
84
n
84
ILE
84
A
GLN
85
n
85
GLN
85
A
TYR
86
n
86
TYR
86
A
ALA
87
n
87
ALA
87
A
LYS
88
n
88
LYS
88
A
THR
89
n
89
THR
89
A
ASP
90
n
90
ASP
90
A
SER
91
n
91
SER
91
A
ASP
92
n
92
ASP
92
A
ILE
93
n
93
ILE
93
A
ILE
94
n
94
ILE
94
A
ALA
95
n
95
ALA
95
A
LYS
96
n
96
LYS
96
A
MET
97
n
97
MET
97
A
LYS
98
n
98
LYS
98
A
author_defined_assembly
4
tetrameric
B
U
173
A
OP2
U
180
1_555
B
MG
3
F
MG
MG
1_555
B
A
174
A
OP2
A
181
1_555
73.3
B
A
149
A
O2'
A
156
1_555
B
K
4
G
K
K
1_555
B
G
151
A
N7
G
158
1_555
93.1
B
A
149
A
O2'
A
156
1_555
B
K
4
G
K
K
1_555
B
G
151
A
O6
G
158
1_555
71.2
B
G
151
A
N7
G
158
1_555
B
K
4
G
K
K
1_555
B
G
151
A
O6
G
158
1_555
77.5
B
A
149
A
O2'
A
156
1_555
B
K
4
G
K
K
1_555
B
G
152
A
O6
G
159
1_555
137.5
B
G
151
A
N7
G
158
1_555
B
K
4
G
K
K
1_555
B
G
152
A
O6
G
159
1_555
77.5
B
G
151
A
O6
G
158
1_555
B
K
4
G
K
K
1_555
B
G
152
A
O6
G
159
1_555
66.3
B
C
88
A
OP1
C
85
1_555
B
MG
1015
E
MG
MG
1_555
B
G
170
A
OP1
G
177
1_555
84.3
B
C
88
A
OP1
C
85
1_555
B
MG
1015
E
MG
MG
1_555
B
A
172
A
OP1
A
179
1_555
90.8
B
G
170
A
OP1
G
177
1_555
B
MG
1015
E
MG
MG
1_555
B
A
172
A
OP1
A
179
1_555
91.8
B
C
88
A
OP1
C
85
1_555
B
MG
1015
E
MG
MG
1_555
C
A
1
B
OP2
A
17
1_555
98.7
B
G
170
A
OP1
G
177
1_555
B
MG
1015
E
MG
MG
1_555
C
A
1
B
OP2
A
17
1_555
175.3
B
A
172
A
OP1
A
179
1_555
B
MG
1015
E
MG
MG
1_555
C
A
1
B
OP2
A
17
1_555
91.8
B
C
88
A
OP1
C
85
1_555
B
MG
1015
E
MG
MG
1_555
D
5MU
1
C
O3'
5MU
3
1_555
86.0
B
G
170
A
OP1
G
177
1_555
B
MG
1015
E
MG
MG
1_555
D
5MU
1
C
O3'
5MU
3
1_555
90.5
B
A
172
A
OP1
A
179
1_555
B
MG
1015
E
MG
MG
1_555
D
5MU
1
C
O3'
5MU
3
1_555
175.8
C
A
1
B
OP2
A
17
1_555
B
MG
1015
E
MG
MG
1_555
D
5MU
1
C
O3'
5MU
3
1_555
86.0
B
A
127
A
OP2
A
134
1_555
B
MG
1016
H
MG
MG
1_555
B
C
171
A
OP2
C
178
1_555
106.9
B
G
128
A
OP1
G
135
1_555
C
MG
207
J
MG
MG
1_555
B
A
172
A
OP2
A
179
1_555
91.0
B
G
128
A
OP1
G
135
1_555
C
MG
207
J
MG
MG
1_555
C
A
1
B
OP2
A
17
1_555
175.8
B
A
172
A
OP2
A
179
1_555
C
MG
207
J
MG
MG
1_555
C
A
1
B
OP2
A
17
1_555
90.1
B
G
128
A
OP1
G
135
1_555
C
MG
207
J
MG
MG
1_555
C
G
206
B
O3'
G
16
1_555
98.7
B
A
172
A
OP2
A
179
1_555
C
MG
207
J
MG
MG
1_555
C
G
206
B
O3'
G
16
1_555
168.2
C
A
1
B
OP2
A
17
1_555
C
MG
207
J
MG
MG
1_555
C
G
206
B
O3'
G
16
1_555
80.7
B
G
128
A
OP1
G
135
1_555
C
MG
207
J
MG
MG
1_555
C
G
206
B
O2'
G
16
1_555
84.6
B
A
172
A
OP2
A
179
1_555
C
MG
207
J
MG
MG
1_555
C
G
206
B
O2'
G
16
1_555
95.1
C
A
1
B
OP2
A
17
1_555
C
MG
207
J
MG
MG
1_555
C
G
206
B
O2'
G
16
1_555
99.4
C
G
206
B
O3'
G
16
1_555
C
MG
207
J
MG
MG
1_555
C
G
206
B
O2'
G
16
1_555
79.2
B
GTP
1
GUANOSINE-5'-TRIPHOSPHATE
A
GTP
1
G
B
A23
190
A
A23
197
A
D
5MU
1
5-METHYLURIDINE 5'-MONOPHOSPHATE
C
5MU
3
U
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
A
N
ILE
12
D
N
ILE
12
A
O
VAL
57
D
O
VAL
57
A
O
PHE
56
D
O
PHE
56
A
N
LEU
44
D
N
LEU
44
1
D
O2'
5MU
1
C
O2'
5MU
3
0
Y
1
A
MET
1
D
MET
1
1
Y
1
A
ALA
2
D
ALA
2
1
Y
1
A
VAL
3
D
VAL
3
1
Y
1
B
G
19
0.048
SIDE CHAIN
1
B
U
62
0.082
SIDE CHAIN
1
B
G
135
0.057
SIDE CHAIN
1
B
A
161
0.107
SIDE CHAIN
1
B
A
168
0.070
SIDE CHAIN
1
-6.46
1.00
104.00
97.54
B
B
B
O4'
C4'
C3'
G
G
G
10
10
10
N
1
-6.72
1.10
112.00
105.28
B
B
B
N1
C1'
C2'
U
U
U
11
11
11
N
1
6.83
1.10
110.50
117.33
B
B
B
O3'
P
OP2
A
C
C
30
31
31
Y
1
4.66
0.70
108.50
113.16
B
B
B
O4'
C1'
N1
C
C
C
33
33
33
N
1
10.94
1.30
114.00
124.94
B
B
B
N9
C1'
C2'
G
G
G
37
37
37
N
1
-5.92
0.90
105.70
99.78
B
B
B
O5'
P
OP2
G
G
G
83
83
83
N
1
4.46
0.70
108.50
112.96
B
B
B
O4'
C1'
N9
G
G
G
107
107
107
N
1
7.91
1.30
114.00
121.91
B
B
B
N1
C1'
C2'
C
C
C
112
112
112
N
1
9.93
1.60
116.00
125.93
B
B
B
C5'
C4'
C3'
G
G
G
128
128
128
N
1
B
B
C5'
C4'
G
G
170
170
-0.044
0.007
1.508
1.464
N
1
A
PRO
8
-29.42
147.86
1
A
ASN
9
-178.51
128.77
1
A
HIS
10
-56.41
5.07
1
A
ASN
16
64.34
94.86
1
A
GLU
19
-38.85
-25.69
1
A
LYS
20
-39.79
-28.12
1
A
SER
29
-72.14
32.79
1
A
LEU
30
-157.42
-41.82
1
A
HIS
31
-28.90
-43.86
1
A
SER
35
-166.32
82.18
1
A
GLN
39
-63.05
-177.81
1
A
ASP
42
179.95
136.02
1
A
ILE
43
-103.02
71.02
1
A
LEU
49
-56.25
1.40
1
A
PHE
59
-106.51
-152.06
1
A
LYS
60
-135.13
-34.80
1
A
SER
71
-58.98
12.84
1
A
MET
72
-157.51
-14.40
1
A
PRO
76
-59.61
100.29
1
A
PRO
81
-48.47
-156.08
1
A
GLN
85
-177.28
130.90
1
A
TYR
86
-49.28
152.33
1
A
ASP
90
-40.85
106.02
1
A
SER
91
-23.27
146.05
1
A
ASP
92
-68.51
33.97
1
A
MET
97
-79.21
-73.17
protein_rep.param
protein.top
rna_dna_modified.param
dna-rna_modified.top
water_rep.param
water.top
ion.param
ion.top
100.7
5.88
0.00
0.00
5.88
0.00
-11.76
Experimental phases from 1U6B structure were used followed by maximum likelihood refinement. Octahedral parameters for Mg2+ coordination were used to refine M1 and M2 in the final round of refinement only
0.307
0.011
0.269
0.269
3.37
33.04
801
18224
18224
4.4
84.8
RANDOM
198973.33
0.000
1
RESTRAINED
THROUGHOUT
0.0
FOURIER SYNTHESIS
PDB entry 1U6B
CNS
FLAT MODEL
10
0.0527796
0.60
0.51
5.00
0.69
0.69
3.37
33.04
54
5603
6
4768
775
0.011
1.7
15.5
1.71
2.46
1.50
4.61
2.00
4.00
2.00
6.18
2.50
0.411
0.039
0.381
3.58
109
2379
6
4.4
71.1
3.37
50.00
1ZZN
20658
20658
2.0
2.0
0.072
1
18.2
5.500
95.9
3.37
3.49
1.1
5.600
71.1
data reduction
Zbyszek Otwinowski
zbyszek@mix.swmed.edu
http://www.lnls.br/infra/linhasluz/denzo-hkl.htm
DENZO
package
data scaling
Zbyszek Otwinowski
zbyszek@mix.swmed.edu
http://www.lnls.br/infra/linhasluz/denzo-hkl.htm
SCALEPACK
package
refinement
Axel T. Brunger
axel.brunger@yale.edu
Fortran_77
http://cns.csb.yale.edu/v1.1/
CNS
package
1.0
data extraction
PDB
sw-help@rcsb.rutgers.edu
Jan. 30, 2005
C++
http://pdb.rutgers.edu/software/
PDB_EXTRACT
package
1.601
data reduction
HKL-2000
phasing
CNS
Crystal structure of a group I intron/two exon complex that includes all catalytic metal ion ligands.
1
N
N
2
N
N
3
N
N
4
N
N
5
N
N
5
N
N
6
N
N
5
N
N
5
N
N
5
N
N
7
N
N
7
N
N
A
LYS
22
D
LYS
22
HELX_P
A
ALA
32
D
ALA
32
1
1
11
A
GLU
61
D
GLU
61
HELX_P
A
MET
72
D
MET
72
1
2
12
A
PRO
76
D
PRO
76
HELX_P
A
LYS
80
D
LYS
80
5
3
5
A
ILE
93
D
ILE
93
HELX_P
A
LYS
98
D
LYS
98
1
4
6
covale
1.627
both
B
GTP
1
A
O3'
GTP
1
1_555
B
G
5
A
P
G
2
1_555
covale
1.618
both
B
G
189
A
O3'
G
196
1_555
B
A23
190
A
P
A23
197
1_555
covale
1.588
both
D
5MU
1
C
P
5MU
3
1_555
D
A
2
C
O3'
A
2
1_555
covale
1.596
both
D
A
2
C
P
A
2
1_555
D
C
3
C
O3'
C
1
1_555
metalc
2.142
B
MG
3
F
MG
MG
1_555
B
U
173
A
OP2
U
180
1_555
metalc
1.896
B
MG
3
F
MG
MG
1_555
B
A
174
A
OP2
A
181
1_555
metalc
2.400
B
K
4
G
K
K
1_555
B
A
149
A
O2'
A
156
1_555
metalc
2.501
B
K
4
G
K
K
1_555
B
G
151
A
N7
G
158
1_555
metalc
2.332
B
K
4
G
K
K
1_555
B
G
151
A
O6
G
158
1_555
metalc
2.784
B
K
4
G
K
K
1_555
B
G
152
A
O6
G
159
1_555
metalc
2.190
B
C
88
A
OP1
C
85
1_555
B
MG
1015
E
MG
MG
1_555
metalc
2.370
B
A
127
A
OP2
A
134
1_555
B
MG
1016
H
MG
MG
1_555
metalc
2.017
B
G
128
A
OP1
G
135
1_555
C
MG
207
J
MG
MG
1_555
metalc
2.105
B
G
170
A
OP1
G
177
1_555
B
MG
1015
E
MG
MG
1_555
metalc
2.207
B
C
171
A
OP2
C
178
1_555
B
MG
1016
H
MG
MG
1_555
metalc
2.166
B
A
172
A
OP1
A
179
1_555
B
MG
1015
E
MG
MG
1_555
metalc
2.177
B
A
172
A
OP2
A
179
1_555
C
MG
207
J
MG
MG
1_555
metalc
2.171
B
MG
1015
E
MG
MG
1_555
C
A
1
B
OP2
A
17
1_555
metalc
2.082
B
MG
1015
E
MG
MG
1_555
D
5MU
1
C
O3'
5MU
3
1_555
metalc
2.201
B
MG
1017
I
MG
MG
1_555
B
HOH
1065
K
O
HOH
1_555
metalc
1.953
C
A
1
B
OP2
A
17
1_555
C
MG
207
J
MG
MG
1_555
metalc
2.082
C
G
206
B
O3'
G
16
1_555
C
MG
207
J
MG
MG
1_555
metalc
2.160
C
G
206
B
O2'
G
16
1_555
C
MG
207
J
MG
MG
1_555
hydrog
WATSON-CRICK
B
GTP
1
A
N1
GTP
1
1_555
C
C
6
B
N3
C
22
1_555
hydrog
WATSON-CRICK
B
GTP
1
A
N2
GTP
1
1_555
C
C
6
B
O2
C
22
1_555
hydrog
WATSON-CRICK
B
GTP
1
A
O6
GTP
1
1_555
C
C
6
B
N4
C
22
1_555
hydrog
WATSON-CRICK
B
G
5
A
N1
G
2
1_555
C
C
5
B
N3
C
21
1_555
hydrog
WATSON-CRICK
B
G
5
A
N2
G
2
1_555
C
C
5
B
O2
C
21
1_555
hydrog
WATSON-CRICK
B
G
5
A
O6
G
2
1_555
C
C
5
B
N4
C
21
1_555
hydrog
WATSON-CRICK
B
C
6
A
N3
C
3
1_555
C
G
4
B
N1
G
20
1_555
hydrog
WATSON-CRICK
B
C
6
A
N4
C
3
1_555
C
G
4
B
O6
G
20
1_555
hydrog
WATSON-CRICK
B
C
6
A
O2
C
3
1_555
C
G
4
B
N2
G
20
1_555
hydrog
WATSON-CRICK
B
C
7
A
N3
C
4
1_555
C
G
3
B
N1
G
19
1_555
hydrog
WATSON-CRICK
B
C
7
A
N4
C
4
1_555
C
G
3
B
O6
G
19
1_555
hydrog
WATSON-CRICK
B
C
7
A
O2
C
4
1_555
C
G
3
B
N2
G
19
1_555
hydrog
WATSON-CRICK
B
G
8
A
N1
G
5
1_555
C
C
2
B
N3
C
18
1_555
hydrog
WATSON-CRICK
B
G
8
A
N2
G
5
1_555
C
C
2
B
O2
C
18
1_555
hydrog
WATSON-CRICK
B
G
8
A
O6
G
5
1_555
C
C
2
B
N4
C
18
1_555
hydrog
WATSON-CRICK
B
U
9
A
N3
U
6
1_555
C
A
1
B
N1
A
17
1_555
hydrog
WATSON-CRICK
B
U
9
A
O4
U
6
1_555
C
A
1
B
N6
A
17
1_555
hydrog
G-A MISPAIR
B
G
10
A
N2
G
7
1_555
B
A
87
A
N3
A
84
1_555
hydrog
G-A MISPAIR
B
G
10
A
O6
G
7
1_555
D
A
2
C
N6
A
2
1_555
hydrog
TYPE_28_PAIR
B
G
10
A
N1
G
7
1_555
D
5MU
1
C
O2
5MU
3
1_555
hydrog
TYPE_28_PAIR
B
G
10
A
O6
G
7
1_555
D
5MU
1
C
N3
5MU
3
1_555
hydrog
WATSON-CRICK
B
U
11
A
N3
U
8
1_555
D
A
2
C
N1
A
2
1_555
hydrog
WATSON-CRICK
B
U
11
A
O4
U
8
1_555
D
A
2
C
N6
A
2
1_555
hydrog
WATSON-CRICK
B
G
12
A
N1
G
9
1_555
D
C
3
C
N3
C
1
1_555
hydrog
WATSON-CRICK
B
G
12
A
N2
G
9
1_555
D
C
3
C
O2
C
1
1_555
hydrog
WATSON-CRICK
B
G
12
A
O6
G
9
1_555
D
C
3
C
N4
C
1
1_555
hydrog
WATSON-CRICK
B
C
13
A
N3
C
10
1_555
B
G
37
A
N1
G
34
1_555
hydrog
WATSON-CRICK
B
C
13
A
N4
C
10
1_555
B
G
37
A
O6
G
34
1_555
hydrog
WATSON-CRICK
B
C
13
A
O2
C
10
1_555
B
G
37
A
N2
G
34
1_555
hydrog
WATSON-CRICK
B
C
14
A
N3
C
11
1_555
B
G
36
A
N1
G
33
1_555
hydrog
WATSON-CRICK
B
C
14
A
N4
C
11
1_555
B
G
36
A
O6
G
33
1_555
hydrog
WATSON-CRICK
B
C
14
A
O2
C
11
1_555
B
G
36
A
N2
G
33
1_555
hydrog
C-A MISPAIR
B
C
14
A
O2
C
11
1_555
B
A
39
A
N6
A
36
1_555
hydrog
WATSON-CRICK
B
U
15
A
N3
U
12
1_555
B
A
35
A
N1
A
32
1_555
hydrog
WATSON-CRICK
B
U
15
A
O4
U
12
1_555
B
A
35
A
N6
A
32
1_555
hydrog
WATSON-CRICK
B
U
16
A
N3
U
13
1_555
B
A
34
A
N1
A
31
1_555
hydrog
WATSON-CRICK
B
U
16
A
O4
U
13
1_555
B
A
34
A
N6
A
31
1_555
hydrog
WATSON-CRICK
B
G
17
A
N1
G
14
1_555
B
C
33
A
N3
C
30
1_555
hydrog
WATSON-CRICK
B
G
17
A
N2
G
14
1_555
B
C
33
A
O2
C
30
1_555
hydrog
WATSON-CRICK
B
G
17
A
O6
G
14
1_555
B
C
33
A
N4
C
30
1_555
hydrog
WATSON-CRICK
B
C
18
A
N3
C
15
1_555
B
G
32
A
N1
G
29
1_555
hydrog
WATSON-CRICK
B
C
18
A
N4
C
15
1_555
B
G
32
A
O6
G
29
1_555
hydrog
WATSON-CRICK
B
C
18
A
O2
C
15
1_555
B
G
32
A
N2
G
29
1_555
hydrog
WATSON-CRICK
B
G
19
A
N1
G
16
1_555
B
C
31
A
N3
C
28
1_555
hydrog
WATSON-CRICK
B
G
19
A
N2
G
16
1_555
B
C
31
A
O2
C
28
1_555
hydrog
WATSON-CRICK
B
G
19
A
O6
G
16
1_555
B
C
31
A
N4
C
28
1_555
hydrog
C-G PAIR
B
C
20
A
N4
C
17
1_555
B
G
22
A
O6
G
19
1_555
hydrog
C-A MISPAIR
B
C
20
A
N4
C
17
1_555
B
A
30
A
N1
A
27
1_555
hydrog
WATSON-CRICK
B
G
22
A
N1
G
19
1_555
B
C
29
A
N3
C
26
1_555
hydrog
WATSON-CRICK
B
G
22
A
N2
G
19
1_555
B
C
29
A
O2
C
26
1_555
hydrog
WATSON-CRICK
B
G
22
A
O6
G
19
1_555
B
C
29
A
N4
C
26
1_555
hydrog
WATSON-CRICK
B
G
23
A
N1
G
20
1_555
B
C
28
A
N3
C
25
1_555
hydrog
WATSON-CRICK
B
G
23
A
N2
G
20
1_555
B
C
28
A
O2
C
25
1_555
hydrog
WATSON-CRICK
B
G
23
A
O6
G
20
1_555
B
C
28
A
N4
C
25
1_555
hydrog
G-A MISPAIR
B
G
24
A
N2
G
21
1_555
B
A
27
A
N7
A
24
1_555
hydrog
G-G MISPAIR
B
G
36
A
N2
G
33
1_555
B
G
38
A
O6
G
35
1_555
hydrog
WATSON-CRICK
B
G
41
A
N1
G
38
1_555
B
C
143
A
N3
C
150
1_555
hydrog
WATSON-CRICK
B
G
41
A
N2
G
38
1_555
B
C
143
A
O2
C
150
1_555
hydrog
WATSON-CRICK
B
G
41
A
O6
G
38
1_555
B
C
143
A
N4
C
150
1_555
hydrog
WATSON-CRICK
B
G
42
A
N1
G
39
1_555
B
C
142
A
N3
C
149
1_555
hydrog
WATSON-CRICK
B
G
42
A
N2
G
39
1_555
B
C
142
A
O2
C
149
1_555
hydrog
WATSON-CRICK
B
G
42
A
O6
G
39
1_555
B
C
142
A
N4
C
149
1_555
hydrog
WATSON-CRICK
B
U
43
A
N3
U
40
1_555
B
A
141
A
N1
A
148
1_555
hydrog
WATSON-CRICK
B
U
43
A
O4
U
40
1_555
B
A
141
A
N6
A
148
1_555
hydrog
WATSON-CRICK
B
G
44
A
N1
G
41
1_555
B
C
140
A
N3
C
147
1_555
hydrog
WATSON-CRICK
B
G
44
A
N2
G
41
1_555
B
C
140
A
O2
C
147
1_555
hydrog
WATSON-CRICK
B
G
44
A
O6
G
41
1_555
B
C
140
A
N4
C
147
1_555
hydrog
TYPE_28_PAIR
B
U
45
A
N3
U
42
1_555
B
G
139
A
O6
G
146
1_555
hydrog
TYPE_28_PAIR
B
U
45
A
O2
U
42
1_555
B
G
139
A
N1
G
146
1_555
hydrog
WATSON-CRICK
B
C
46
A
N3
C
43
1_555
B
G
138
A
N1
G
145
1_555
hydrog
WATSON-CRICK
B
C
46
A
N4
C
43
1_555
B
G
138
A
O6
G
145
1_555
hydrog
WATSON-CRICK
B
C
46
A
O2
C
43
1_555
B
G
138
A
N2
G
145
1_555
hydrog
TYPE_5_PAIR
B
A
47
A
N1
A
44
1_555
B
A
136
A
N6
A
143
1_555
hydrog
TYPE_5_PAIR
B
A
47
A
N6
A
44
1_555
B
A
136
A
N7
A
143
1_555
hydrog
WATSON-CRICK
B
U
51
A
N3
U
48
1_555
B
A
93
A
N1
A
90
1_555
hydrog
WATSON-CRICK
B
U
51
A
O4
U
48
1_555
B
A
93
A
N6
A
90
1_555
hydrog
WATSON-CRICK
B
C
52
A
N3
C
49
1_555
B
G
92
A
N1
G
89
1_555
hydrog
WATSON-CRICK
B
C
52
A
N4
C
49
1_555
B
G
92
A
O6
G
89
1_555
hydrog
WATSON-CRICK
B
C
52
A
O2
C
49
1_555
B
G
92
A
N2
G
89
1_555
hydrog
WATSON-CRICK
B
G
53
A
N1
G
50
1_555
B
C
91
A
N3
C
88
1_555
hydrog
WATSON-CRICK
B
G
53
A
N2
G
50
1_555
B
C
91
A
O2
C
88
1_555
hydrog
WATSON-CRICK
B
G
53
A
O6
G
50
1_555
B
C
91
A
N4
C
88
1_555
hydrog
WATSON-CRICK
B
G
54
A
N1
G
51
1_555
B
C
90
A
N3
C
87
1_555
hydrog
WATSON-CRICK
B
G
54
A
N2
G
51
1_555
B
C
90
A
O2
C
87
1_555
hydrog
WATSON-CRICK
B
G
54
A
O6
G
51
1_555
B
C
90
A
N4
C
87
1_555
hydrog
G-C PAIR
B
G
54
A
N1
G
51
1_555
B
C
91
A
N3
C
88
1_555
hydrog
WATSON-CRICK
B
C
55
A
N3
C
52
1_555
B
G
89
A
N1
G
86
1_555
hydrog
WATSON-CRICK
B
C
55
A
N4
C
52
1_555
B
G
89
A
O6
G
86
1_555
hydrog
WATSON-CRICK
B
C
55
A
O2
C
52
1_555
B
G
89
A
N2
G
86
1_555
hydrog
WATSON-CRICK
B
G
56
A
N1
G
53
1_555
B
C
88
A
N3
C
85
1_555
hydrog
WATSON-CRICK
B
G
56
A
N2
G
53
1_555
B
C
88
A
O2
C
85
1_555
hydrog
WATSON-CRICK
B
G
56
A
O6
G
53
1_555
B
C
88
A
N4
C
85
1_555
hydrog
A-A MISPAIR
B
A
57
A
N3
A
54
1_555
B
A
87
A
N6
A
84
1_555
hydrog
A-A MISPAIR
B
A
58
A
N6
A
55
1_555
B
A
86
A
N3
A
83
1_555
hydrog
A-C MISPAIR
B
A
59
A
N6
A
56
1_555
B
C
85
A
O2
C
82
1_555
hydrog
WATSON-CRICK
B
C
60
A
N3
C
57
1_555
B
G
84
A
N1
G
81
1_555
hydrog
WATSON-CRICK
B
C
60
A
N4
C
57
1_555
B
G
84
A
O6
G
81
1_555
hydrog
WATSON-CRICK
B
C
60
A
O2
C
57
1_555
B
G
84
A
N2
G
81
1_555
hydrog
WATSON-CRICK
B
C
61
A
N3
C
58
1_555
B
G
83
A
N1
G
80
1_555
hydrog
WATSON-CRICK
B
C
61
A
N4
C
58
1_555
B
G
83
A
O6
G
80
1_555
hydrog
WATSON-CRICK
B
C
61
A
O2
C
58
1_555
B
G
83
A
N2
G
80
1_555
hydrog
U-G MISPAIR
B
U
62
A
O2
U
59
1_555
B
G
83
A
N1
G
80
1_555
hydrog
A-A MISPAIR
B
A
63
A
N3
A
60
1_555
B
A
64
A
N6
A
61
1_555
hydrog
G-G MISPAIR
B
G
65
A
N1
G
62
1_555
B
G
79
A
O6
G
76
1_555
hydrog
TYPE_28_PAIR
B
G
65
A
N1
G
62
1_555
B
U
80
A
O2
U
77
1_555
hydrog
TYPE_28_PAIR
B
G
65
A
O6
G
62
1_555
B
U
80
A
N3
U
77
1_555
hydrog
WATSON-CRICK
B
C
66
A
N3
C
63
1_555
B
G
79
A
N1
G
76
1_555
hydrog
WATSON-CRICK
B
C
66
A
N4
C
63
1_555
B
G
79
A
O6
G
76
1_555
hydrog
WATSON-CRICK
B
C
66
A
O2
C
63
1_555
B
G
79
A
N2
G
76
1_555
hydrog
WATSON-CRICK
B
G
67
A
N1
G
64
1_555
B
C
78
A
N3
C
75
1_555
hydrog
WATSON-CRICK
B
G
67
A
N2
G
64
1_555
B
C
78
A
O2
C
75
1_555
hydrog
WATSON-CRICK
B
G
67
A
O6
G
64
1_555
B
C
78
A
N4
C
75
1_555
hydrog
WATSON-CRICK
B
C
68
A
N3
C
65
1_555
B
G
77
A
N1
G
74
1_555
hydrog
WATSON-CRICK
B
C
68
A
N4
C
65
1_555
B
G
77
A
O6
G
74
1_555
hydrog
WATSON-CRICK
B
C
68
A
O2
C
65
1_555
B
G
77
A
N2
G
74
1_555
hydrog
WATSON-CRICK
B
C
69
A
N3
C
66
1_555
B
G
76
A
N1
G
73
1_555
hydrog
WATSON-CRICK
B
C
69
A
N4
C
66
1_555
B
G
76
A
O6
G
73
1_555
hydrog
WATSON-CRICK
B
C
69
A
O2
C
66
1_555
B
G
76
A
N2
G
73
1_555
hydrog
WATSON-CRICK
B
C
70
A
N3
C
67
1_555
B
G
75
A
N1
G
72
1_555
hydrog
WATSON-CRICK
B
C
70
A
N4
C
67
1_555
B
G
75
A
O6
G
72
1_555
hydrog
WATSON-CRICK
B
C
70
A
O2
C
67
1_555
B
G
75
A
N2
G
72
1_555
hydrog
C-C MISPAIR
B
C
72
A
O2
C
69
1_555
B
C
73
A
N4
C
70
1_555
hydrog
C-U MISPAIR
B
C
91
A
N4
C
88
1_555
B
U
126
A
O4
U
133
1_555
hydrog
G-G MISPAIR
B
G
92
A
O6
G
89
1_555
B
G
125
A
N2
G
132
1_555
hydrog
TYPE_28_PAIR
B
G
94
A
N1
G
91
1_555
B
U
124
A
O2
U
131
1_555
hydrog
TYPE_28_PAIR
B
G
94
A
O6
G
91
1_555
B
U
124
A
N3
U
131
1_555
hydrog
WATSON-CRICK
B
C
95
A
N3
C
92
1_555
B
G
123
A
N1
G
130
1_555
hydrog
WATSON-CRICK
B
C
95
A
N4
C
92
1_555
B
G
123
A
O6
G
130
1_555
hydrog
WATSON-CRICK
B
C
95
A
O2
C
92
1_555
B
G
123
A
N2
G
130
1_555
hydrog
WATSON-CRICK
B
C
96
A
N3
C
93
1_555
B
G
122
A
N1
G
129
1_555
hydrog
WATSON-CRICK
B
C
96
A
N4
C
93
1_555
B
G
122
A
O6
G
129
1_555
hydrog
WATSON-CRICK
B
C
96
A
O2
C
93
1_555
B
G
122
A
N2
G
129
1_555
hydrog
TYPE_8_PAIR
B
G
99
A
N1
G
96
1_555
B
A
120
A
N1
A
127
1_555
hydrog
TYPE_8_PAIR
B
G
99
A
O6
G
96
1_555
B
A
120
A
N6
A
127
1_555
hydrog
WATSON-CRICK
B
C
100
A
N3
C
97
1_555
B
G
119
A
N1
G
126
1_555
hydrog
WATSON-CRICK
B
C
100
A
N4
C
97
1_555
B
G
119
A
O6
G
126
1_555
hydrog
WATSON-CRICK
B
C
100
A
O2
C
97
1_555
B
G
119
A
N2
G
126
1_555
hydrog
TYPE_16_PAIR
B
U
101
A
N3
U
98
1_555
B
U
118
A
O2
U
125
1_555
hydrog
TYPE_16_PAIR
B
U
101
A
O4
U
98
1_555
B
U
118
A
N3
U
125
1_555
hydrog
WATSON-CRICK
B
U
102
A
N3
U
99
1_555
B
A
117
A
N1
A
124
1_555
hydrog
WATSON-CRICK
B
U
102
A
O4
U
99
1_555
B
A
117
A
N6
A
124
1_555
hydrog
WATSON-CRICK
B
C
103
A
N3
C
100
1_555
B
G
116
A
N1
G
123
1_555
hydrog
WATSON-CRICK
B
C
103
A
N4
C
100
1_555
B
G
116
A
O6
G
123
1_555
hydrog
WATSON-CRICK
B
C
103
A
O2
C
100
1_555
B
G
116
A
N2
G
123
1_555
hydrog
WATSON-CRICK
B
G
104
A
N1
G
101
1_555
B
C
115
A
N3
C
122
1_555
hydrog
WATSON-CRICK
B
G
104
A
N2
G
101
1_555
B
C
115
A
O2
C
122
1_555
hydrog
WATSON-CRICK
B
G
104
A
O6
G
101
1_555
B
C
115
A
N4
C
122
1_555
hydrog
WATSON-CRICK
B
C
105
A
N3
C
102
1_555
B
G
114
A
N1
G
121
1_555
hydrog
WATSON-CRICK
B
C
105
A
N4
C
102
1_555
B
G
114
A
O6
G
121
1_555
hydrog
WATSON-CRICK
B
C
105
A
O2
C
102
1_555
B
G
114
A
N2
G
121
1_555
hydrog
A-G MISPAIR
B
A
106
A
N1
A
103
1_555
B
G
107
A
N2
G
104
1_555
hydrog
WATSON-CRICK
B
A
106
A
N1
A
103
1_555
B
U
113
A
N3
U
120
1_555
hydrog
WATSON-CRICK
B
A
106
A
N6
A
103
1_555
B
U
113
A
O4
U
120
1_555
hydrog
WATSON-CRICK
B
G
107
A
N1
G
104
1_555
B
C
112
A
N3
C
119
1_555
hydrog
WATSON-CRICK
B
G
107
A
N2
G
104
1_555
B
C
112
A
O2
C
119
1_555
hydrog
WATSON-CRICK
B
G
107
A
O6
G
104
1_555
B
C
112
A
N4
C
119
1_555
hydrog
WATSON-CRICK
B
C
1001
A
N3
C
105
1_555
B
G
1014
A
N1
G
118
1_555
hydrog
WATSON-CRICK
B
C
1001
A
N4
C
105
1_555
B
G
1014
A
O6
G
118
1_555
hydrog
WATSON-CRICK
B
C
1001
A
O2
C
105
1_555
B
G
1014
A
N2
G
118
1_555
hydrog
WATSON-CRICK
B
C
1002
A
N3
C
106
1_555
B
G
1013
A
N1
G
117
1_555
hydrog
WATSON-CRICK
B
C
1002
A
N4
C
106
1_555
B
G
1013
A
O6
G
117
1_555
hydrog
WATSON-CRICK
B
C
1002
A
O2
C
106
1_555
B
G
1013
A
N2
G
117
1_555
hydrog
G-A MISPAIR
B
G
128
A
N2
G
135
1_555
B
A
129
A
N7
A
136
1_555
hydrog
WATSON-CRICK
B
G
128
A
N1
G
135
1_555
B
C
178
A
N3
C
185
1_555
hydrog
WATSON-CRICK
B
G
128
A
N2
G
135
1_555
B
C
178
A
O2
C
185
1_555
hydrog
WATSON-CRICK
B
G
128
A
O6
G
135
1_555
B
C
178
A
N4
C
185
1_555
hydrog
A-C MISPAIR
B
A
129
A
N6
A
136
1_555
B
C
178
A
O2
C
185
1_555
hydrog
WATSON-CRICK
B
G
130
A
N1
G
137
1_555
B
C
177
A
N3
C
184
1_555
hydrog
WATSON-CRICK
B
G
130
A
N2
G
137
1_555
B
C
177
A
O2
C
184
1_555
hydrog
WATSON-CRICK
B
G
130
A
O6
G
137
1_555
B
C
177
A
N4
C
184
1_555
hydrog
TYPE_6_PAIR
B
G
130
A
N7
G
137
1_555
C
G
206
B
N2
G
16
1_555
hydrog
TYPE_6_PAIR
B
G
130
A
O6
G
137
1_555
C
G
206
B
N1
G
16
1_555
hydrog
WATSON-CRICK
B
A
131
A
N1
A
138
1_555
B
U
176
A
N3
U
183
1_555
hydrog
WATSON-CRICK
B
A
131
A
N6
A
138
1_555
B
U
176
A
O4
U
183
1_555
hydrog
WATSON-CRICK
B
C
132
A
N3
C
139
1_555
B
G
175
A
N1
G
182
1_555
hydrog
WATSON-CRICK
B
C
132
A
N4
C
139
1_555
B
G
175
A
O6
G
182
1_555
hydrog
WATSON-CRICK
B
C
132
A
O2
C
139
1_555
B
G
175
A
N2
G
182
1_555
hydrog
WATSON-CRICK
B
U
133
A
N3
U
140
1_555
B
A
174
A
N1
A
181
1_555
hydrog
WATSON-CRICK
B
U
133
A
O4
U
140
1_555
B
A
174
A
N6
A
181
1_555
hydrog
WATSON-CRICK
B
A
134
A
N1
A
141
1_555
B
U
173
A
N3
U
180
1_555
hydrog
WATSON-CRICK
B
A
134
A
N6
A
141
1_555
B
U
173
A
O4
U
180
1_555
hydrog
WATSON-CRICK
B
C
144
A
N3
C
151
1_555
B
G
166
A
N1
G
173
1_555
hydrog
WATSON-CRICK
B
C
144
A
N4
C
151
1_555
B
G
166
A
O6
G
173
1_555
hydrog
WATSON-CRICK
B
C
144
A
O2
C
151
1_555
B
G
166
A
N2
G
173
1_555
hydrog
WATSON-CRICK
B
A
145
A
N1
A
152
1_555
B
U
165
A
N3
U
172
1_555
hydrog
WATSON-CRICK
B
A
145
A
N6
A
152
1_555
B
U
165
A
O4
U
172
1_555
hydrog
WATSON-CRICK
B
C
146
A
N3
C
153
1_555
B
G
164
A
N1
G
171
1_555
hydrog
WATSON-CRICK
B
C
146
A
N4
C
153
1_555
B
G
164
A
O6
G
171
1_555
hydrog
WATSON-CRICK
B
C
146
A
O2
C
153
1_555
B
G
164
A
N2
G
171
1_555
hydrog
WATSON-CRICK
B
C
147
A
N3
C
154
1_555
B
G
163
A
N1
G
170
1_555
hydrog
WATSON-CRICK
B
C
147
A
N4
C
154
1_555
B
G
163
A
O6
G
170
1_555
hydrog
WATSON-CRICK
B
C
147
A
O2
C
154
1_555
B
G
163
A
N2
G
170
1_555
hydrog
U-A PAIR
B
U
148
A
O4
U
155
1_555
B
A
161
A
N6
A
168
1_555
hydrog
U-G MISPAIR
B
U
148
A
O2
U
155
1_555
B
G
163
A
N2
G
170
1_555
hydrog
A-A MISPAIR
B
A
149
A
N3
A
156
1_555
B
A
150
A
N6
A
157
1_555
hydrog
TYPE_28_PAIR
B
G
151
A
N1
G
158
1_555
B
U
160
A
O2
U
167
1_555
hydrog
TYPE_28_PAIR
B
G
151
A
O6
G
158
1_555
B
U
160
A
N3
U
167
1_555
hydrog
WATSON-CRICK
B
G
152
A
N1
G
159
1_555
B
C
159
A
N3
C
166
1_555
hydrog
WATSON-CRICK
B
G
152
A
N2
G
159
1_555
B
C
159
A
O2
C
166
1_555
hydrog
WATSON-CRICK
B
G
152
A
O6
G
159
1_555
B
C
159
A
N4
C
166
1_555
hydrog
WATSON-CRICK
B
C
153
A
N3
C
160
1_555
B
G
158
A
N1
G
165
1_555
hydrog
WATSON-CRICK
B
C
153
A
N4
C
160
1_555
B
G
158
A
O6
G
165
1_555
hydrog
WATSON-CRICK
B
C
153
A
O2
C
160
1_555
B
G
158
A
N2
G
165
1_555
hydrog
C-G PAIR
B
C
177
A
N4
C
184
1_555
C
G
206
B
O6
G
16
1_555
hydrog
C-A MISPAIR
B
C
178
A
N4
C
185
1_555
C
A
205
B
N1
A
15
1_555
hydrog
A-A MISPAIR
B
A
179
A
N6
A
186
1_555
C
A
205
B
N3
A
15
1_555
hydrog
WATSON-CRICK
B
G
180
A
N1
G
187
1_555
C
C
204
B
N3
C
14
1_555
hydrog
WATSON-CRICK
B
G
180
A
N2
G
187
1_555
C
C
204
B
O2
C
14
1_555
hydrog
WATSON-CRICK
B
G
180
A
O6
G
187
1_555
C
C
204
B
N4
C
14
1_555
hydrog
WATSON-CRICK
B
G
181
A
N1
G
188
1_555
C
C
203
B
N3
C
13
1_555
hydrog
WATSON-CRICK
B
G
181
A
N2
G
188
1_555
C
C
203
B
O2
C
13
1_555
hydrog
WATSON-CRICK
B
G
181
A
O6
G
188
1_555
C
C
203
B
N4
C
13
1_555
hydrog
G-A MISPAIR
B
G
182
A
N2
G
189
1_555
C
A
202
B
N7
A
12
1_555
hydrog
TYPE_2_PAIR
B
A
183
A
N6
A
190
1_555
C
A
201
B
N7
A
11
1_555
hydrog
TYPE_2_PAIR
B
A
183
A
N7
A
190
1_555
C
A
201
B
N6
A
11
1_555
hydrog
G-C PAIR
B
G
184
A
N2
G
191
1_555
C
C
197
B
O2
C
7
1_555
hydrog
WATSON-CRICK
B
U
185
A
N3
U
192
1_555
C
A
196
B
N1
A
6
1_555
hydrog
WATSON-CRICK
B
U
185
A
O4
U
192
1_555
C
A
196
B
N6
A
6
1_555
hydrog
G-C PAIR
B
G
186
A
N2
G
193
1_555
C
C
195
B
O2
C
5
1_555
hydrog
WATSON-CRICK
B
G
187
A
N1
G
194
1_555
C
C
194
B
N3
C
4
1_555
hydrog
WATSON-CRICK
B
G
187
A
N2
G
194
1_555
C
C
194
B
O2
C
4
1_555
hydrog
WATSON-CRICK
B
G
187
A
O6
G
194
1_555
C
C
194
B
N4
C
4
1_555
hydrog
G-C PAIR
B
G
187
A
N1
G
194
1_555
C
C
195
B
O2
C
5
1_555
hydrog
WATSON-CRICK
B
C
188
A
N3
C
195
1_555
C
G
193
B
N1
G
3
1_555
hydrog
WATSON-CRICK
B
C
188
A
N4
C
195
1_555
C
G
193
B
O6
G
3
1_555
hydrog
WATSON-CRICK
B
C
188
A
O2
C
195
1_555
C
G
193
B
N2
G
3
1_555
hydrog
G-A MISPAIR
B
G
189
A
N2
G
196
1_555
C
A
192
B
N7
A
2
1_555
STRUCTURAL PROTEIN/RNA
RNA structure, ribozyme, self-splicing intron, Azoarcus, two-metal-ion mechanism, STRUCTURAL PROTEIN-RNA COMPLEX
SNRPA_HUMAN
UNP
4
1
P09012
AVPETRPNHTIYINNLNEKIKKDELKKSLYAIFSQFGQILDILVSRSLKMRGQAFVIFKEVSSATNALRSMQGFPFYDKP
MRIQYAKTDSDIIAKMK
1ZZN
PDB
1
1ZZN
1ZZN
PDB
2
1ZZN
1ZZN
PDB
3
1ZZN
1
97
1ZZN
2
98
P09012
A
1
2
98
1
190
1ZZN
1
190
1ZZN
B
2
1
197
191
6
1ZZN
191
6
1ZZN
C
3
1
22
3
1
1ZZN
3
1
1ZZN
D
4
1
3
1
initiating methionine
MET
1
1ZZN
A
P09012
UNP
1
1
TYR
engineered mutation
HIS
31
1ZZN
A
P09012
UNP
30
31
1
GLN
engineered mutation
ARG
36
1ZZN
A
P09012
UNP
35
36
3
anti-parallel
anti-parallel
A
THR
11
D
THR
11
A
ASN
15
D
ASN
15
A
GLN
54
D
GLN
54
A
ILE
58
D
ILE
58
A
LEU
44
D
LEU
44
A
SER
46
D
SER
46
BINDING SITE FOR RESIDUE MG B 1015
B
MG
1015
Software
5
BINDING SITE FOR RESIDUE MG C 207
C
MG
207
Software
5
BINDING SITE FOR RESIDUE MG B 3
B
MG
3
Software
3
BINDING SITE FOR RESIDUE K B 4
B
K
4
Software
6
BINDING SITE FOR RESIDUE MG B 1016
B
MG
1016
Software
5
BINDING SITE FOR RESIDUE MG B 1017
B
MG
1017
Software
2
B
C
88
A
C
85
5
1_555
B
G
170
A
G
177
5
1_555
B
A
172
A
A
179
5
1_555
C
A
1
B
A
17
5
1_555
D
5MU
1
C
5MU
3
5
1_555
B
A
127
A
A
134
5
1_555
B
G
128
A
G
135
5
1_555
B
A
172
A
A
179
5
1_555
C
A
1
B
A
17
5
1_555
C
G
206
B
G
16
5
1_555
B
A
172
A
A
179
3
1_555
B
U
173
A
U
180
3
1_555
B
A
174
A
A
181
3
1_555
B
A
149
A
A
156
6
1_555
B
A
150
A
A
157
6
1_555
B
G
151
A
G
158
6
1_555
B
G
152
A
G
159
6
1_555
B
C
159
A
C
166
6
1_555
B
U
160
A
U
167
6
1_555
B
U
124
A
U
131
5
1_555
B
G
125
A
G
132
5
1_555
B
U
126
A
U
133
5
1_555
B
A
127
A
A
134
5
1_555
B
C
171
A
C
178
5
1_555
B
U
15
A
U
12
2
1_555
B
HOH
1065
K
HOH
2
1_555
91
P 41 2 2