0.025189
0.000000
0.000000
0.000000
0.017703
0.000000
0.000000
0.000000
0.014419
0.00000
0.00000
0.00000
Ostheimer, G.J.
Barkan, A.
Matthews, B.W.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
4
90.00
90.00
90.00
39.700
56.489
69.354
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
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
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
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
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
C11 H12 N2 O2
204.225
y
TRYPTOPHAN
L-peptide linking
C9 H11 N O3
181.189
y
TYROSINE
L-peptide linking
C5 H11 N O2
117.146
y
VALINE
L-peptide linking
N
1
N
N
N
2
S
C
N
3
N
C
N
4
N
O
N
5
N
C
N
6
N
O
N
7
N
H
N
8
N
H
N
9
N
H
N
10
N
H
N
11
N
H
N
12
N
H
N
13
N
H
N
14
N
N
N
15
S
C
N
16
N
C
N
17
N
O
N
18
N
C
N
19
N
C
N
20
N
C
N
21
N
N
N
22
N
C
N
23
N
N
N
24
N
N
N
25
N
O
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
H
N
39
N
H
N
40
N
H
N
41
N
N
N
42
S
C
N
43
N
C
N
44
N
O
N
45
N
C
N
46
N
C
N
47
N
O
N
48
N
N
N
49
N
O
N
50
N
H
N
51
N
H
N
52
N
H
N
53
N
H
N
54
N
H
N
55
N
H
N
56
N
H
N
57
N
H
N
58
N
N
N
59
S
C
N
60
N
C
N
61
N
O
N
62
N
C
N
63
N
C
N
64
N
O
N
65
N
O
N
66
N
O
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
N
N
75
S
C
N
76
N
C
N
77
N
O
N
78
N
C
N
79
N
C
N
80
N
C
N
81
N
O
N
82
N
N
N
83
N
O
N
84
N
H
N
85
N
H
N
86
N
H
N
87
N
H
N
88
N
H
N
89
N
H
N
90
N
H
N
91
N
H
N
92
N
H
N
93
N
H
N
94
N
N
N
95
S
C
N
96
N
C
N
97
N
O
N
98
N
C
N
99
N
C
N
100
N
C
N
101
N
O
N
102
N
O
N
103
N
O
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
N
N
114
N
C
N
115
N
C
N
116
N
O
N
117
N
O
N
118
N
H
N
119
N
H
N
120
N
H
N
121
N
H
N
122
N
H
N
123
N
N
N
124
S
C
N
125
N
C
N
126
N
O
N
127
N
C
Y
128
N
C
Y
129
N
N
Y
130
N
C
Y
131
N
C
Y
132
N
N
N
133
N
O
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
147
N
N
N
148
S
C
N
149
N
C
N
150
N
O
N
151
S
C
N
152
N
C
N
153
N
C
N
154
N
C
N
155
N
O
N
156
N
H
N
157
N
H
N
158
N
H
N
159
N
H
N
160
N
H
N
161
N
H
N
162
N
H
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
N
N
170
S
C
N
171
N
C
N
172
N
O
N
173
N
C
N
174
N
C
N
175
N
C
N
176
N
C
N
177
N
O
N
178
N
H
N
179
N
H
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
H
N
188
N
H
N
189
N
H
N
190
N
H
N
191
N
N
N
192
S
C
N
193
N
C
N
194
N
O
N
195
N
C
N
196
N
C
N
197
N
C
N
198
N
C
N
199
N
N
N
200
N
O
N
201
N
H
N
202
N
H
N
203
N
H
N
204
N
H
N
205
N
H
N
206
N
H
N
207
N
H
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
N
N
217
S
C
N
218
N
C
N
219
N
O
N
220
N
C
N
221
N
C
N
222
N
S
N
223
N
C
N
224
N
O
N
225
N
H
N
226
N
H
N
227
N
H
N
228
N
H
N
229
N
H
N
230
N
H
N
231
N
H
N
232
N
H
N
233
N
H
N
234
N
H
N
235
N
H
N
236
N
N
N
237
S
C
N
238
N
C
N
239
N
O
N
240
N
C
Y
241
N
C
Y
242
N
C
Y
243
N
C
Y
244
N
C
Y
245
N
C
Y
246
N
C
N
247
N
O
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
N
N
260
S
C
N
261
N
C
N
262
N
O
N
263
N
C
N
264
N
C
N
265
N
C
N
266
N
O
N
267
N
H
N
268
N
H
N
269
N
H
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
N
N
277
S
C
N
278
N
C
N
279
N
O
N
280
N
C
N
281
N
O
N
282
N
O
N
283
N
H
N
284
N
H
N
285
N
H
N
286
N
H
N
287
N
H
N
288
N
H
N
289
N
H
N
290
N
N
N
291
S
C
N
292
N
C
N
293
N
O
N
294
R
C
N
295
N
O
N
296
N
C
N
297
N
O
N
298
N
H
N
299
N
H
N
300
N
H
N
301
N
H
N
302
N
H
N
303
N
H
N
304
N
H
N
305
N
H
N
306
N
H
N
307
N
N
N
308
S
C
N
309
N
C
N
310
N
O
N
311
N
C
Y
312
N
C
Y
313
N
C
Y
314
N
C
Y
315
N
N
Y
316
N
C
Y
317
N
C
Y
318
N
C
Y
319
N
C
Y
320
N
C
N
321
N
O
N
322
N
H
N
323
N
H
N
324
N
H
N
325
N
H
N
326
N
H
N
327
N
H
N
328
N
H
N
329
N
H
N
330
N
H
N
331
N
H
N
332
N
H
N
333
N
H
N
334
N
N
N
335
S
C
N
336
N
C
N
337
N
O
N
338
N
C
Y
339
N
C
Y
340
N
C
Y
341
N
C
Y
342
N
C
Y
343
N
C
Y
344
N
C
N
345
N
O
N
346
N
O
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
H
N
358
N
N
N
359
S
C
N
360
N
C
N
361
N
O
N
362
N
C
N
363
N
C
N
364
N
C
N
365
N
O
N
366
N
H
N
367
N
H
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
1
N
sing
N
2
N
sing
N
3
N
sing
N
4
N
sing
N
5
N
sing
N
6
N
sing
N
7
N
doub
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
doub
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
doub
N
34
N
sing
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
sing
N
42
N
sing
N
43
N
sing
N
44
N
sing
N
45
N
doub
N
46
N
sing
N
47
N
sing
N
48
N
sing
N
49
N
sing
N
50
N
doub
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
doub
N
62
N
sing
N
63
N
sing
N
64
N
sing
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
sing
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
doub
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
doub
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
doub
N
104
N
sing
N
105
N
sing
N
106
N
sing
N
107
N
sing
N
108
N
sing
N
109
N
sing
N
110
N
sing
N
111
N
sing
N
112
N
sing
N
113
N
doub
N
114
N
sing
N
115
N
sing
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
doub
N
123
N
sing
N
124
N
sing
N
125
N
sing
N
126
N
sing
Y
127
N
sing
Y
128
N
doub
Y
129
N
doub
N
130
N
sing
Y
131
N
sing
N
132
N
sing
Y
133
N
sing
N
134
N
sing
N
135
N
sing
N
136
N
sing
N
137
N
sing
N
138
N
sing
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
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
N
152
N
sing
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
sing
N
165
N
sing
N
166
N
doub
N
167
N
sing
N
168
N
sing
N
169
N
sing
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
sing
N
181
N
sing
N
182
N
sing
N
183
N
sing
N
184
N
sing
N
185
N
sing
N
186
N
sing
N
187
N
doub
N
188
N
sing
N
189
N
sing
N
190
N
sing
N
191
N
sing
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
doub
N
212
N
sing
N
213
N
sing
N
214
N
sing
N
215
N
sing
N
216
N
sing
N
217
N
sing
N
218
N
sing
N
219
N
sing
N
220
N
sing
N
221
N
sing
N
222
N
sing
N
223
N
sing
N
224
N
sing
N
225
N
sing
N
226
N
sing
N
227
N
sing
N
228
N
sing
N
229
N
sing
N
230
N
doub
N
231
N
sing
N
232
N
sing
N
233
N
sing
N
234
N
sing
Y
235
N
doub
Y
236
N
sing
Y
237
N
sing
N
238
N
sing
Y
239
N
doub
N
240
N
sing
Y
241
N
doub
N
242
N
sing
Y
243
N
sing
N
244
N
sing
N
245
N
sing
N
246
N
sing
N
247
N
sing
N
248
N
sing
N
249
N
sing
N
250
N
sing
N
251
N
sing
N
252
N
sing
N
253
N
doub
N
254
N
sing
N
255
N
sing
N
256
N
sing
N
257
N
sing
N
258
N
sing
N
259
N
sing
N
260
N
sing
N
261
N
sing
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
doub
N
271
N
sing
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
sing
N
280
N
sing
N
281
N
sing
N
282
N
sing
N
283
N
doub
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
sing
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
sing
N
299
N
doub
N
300
N
sing
N
301
N
sing
N
302
N
sing
N
303
N
sing
Y
304
N
doub
Y
305
N
sing
Y
306
N
sing
N
307
N
sing
Y
308
N
doub
Y
309
N
sing
Y
310
N
sing
N
311
N
sing
Y
312
N
sing
Y
313
N
doub
N
314
N
sing
Y
315
N
doub
N
316
N
sing
Y
317
N
sing
N
318
N
sing
N
319
N
sing
N
320
N
sing
N
321
N
sing
N
322
N
sing
N
323
N
sing
N
324
N
sing
N
325
N
sing
N
326
N
sing
N
327
N
doub
N
328
N
sing
N
329
N
sing
N
330
N
sing
N
331
N
sing
Y
332
N
doub
Y
333
N
sing
Y
334
N
sing
N
335
N
sing
Y
336
N
doub
N
337
N
sing
Y
338
N
doub
N
339
N
sing
Y
340
N
sing
N
341
N
sing
N
342
N
sing
N
343
N
sing
N
344
N
sing
N
345
N
sing
N
346
N
sing
N
347
N
sing
N
348
N
sing
N
349
N
sing
N
350
N
sing
N
351
N
doub
N
352
N
sing
N
353
N
sing
N
354
N
sing
N
355
N
sing
N
356
N
sing
N
357
N
sing
N
358
N
sing
N
359
N
sing
N
360
N
sing
N
361
N
sing
N
362
N
sing
UK
J.Mol.Biol.
JMOBAK
0070
0022-2836
345
51
68
10.1016/j.jmb.2004.10.032
15567410
Structural analysis of the group II intron splicing factor CRS2 yields insights into its protein and RNA interaction surfaces
2005
10.2210/pdb1ryn/pdb
pdb_00001ryn
100
1
CCD
2003-10-28
ADSC QUANTUM 4
SINGLE WAVELENGTH
M
x-ray
1
1.0
8.2.2
ALS
SYNCHROTRON
ALS BEAMLINE 8.2.2
22552.658
protein CRS2
CRS2(NFT)
I42N, S44F, I50T
1
man
polymer
18.015
water
42
nat
water
no
no
MEYTPWLIAGLGNPGNKYYGTRHNVGFEMVDRIAAEEGITMNTNQFKSLLGTGSIGEVPVLVVKPQSYMNYSGEAIGPLA
AYYQVPLRHILLIYDDTSLPNGVLRLQKKGGHGRHNGLQNVIEHLDGRREFPRLSIGIGSPPGKMDPRAFLLQKFSSEER
VQIDTALEQGVDAVRTLVLKGFSGSTERFNLVQKLEHHHHHH
MEYTPWLIAGLGNPGNKYYGTRHNVGFEMVDRIAAEEGITMNTNQFKSLLGTGSIGEVPVLVVKPQSYMNYSGEAIGPLA
AYYQVPLRHILLIYDDTSLPNGVLRLQKKGGHGRHNGLQNVIEHLDGRREFPRLSIGIGSPPGKMDPRAFLLQKFSSEER
VQIDTALEQGVDAVRTLVLKGFSGSTERFNLVQKLEHHHHHH
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
Zea
Escherichia
sample
CRS2
4577
Zea mays
562
Escherichia coli
BL21 DE3 Gold
Plasmid
pET28b
1
1.78
30.51
VAPOR DIFFUSION, SITTING DROP
8.4
30% PEG 4000, lithium sulfate, Tris, pH 8.4, VAPOR DIFFUSION, SITTING DROP, temperature 298K
298
database_2
struct_ref_seq_dif
chem_comp_atom
chem_comp_bond
pdbx_initial_refinement_model
repository
Initial release
Version format compliance
Version format compliance
Database references
Data collection
Refinement description
1
0
2004-01-06
1
1
2008-04-29
1
2
2011-07-13
1
3
2021-10-27
1
4
2024-02-14
1
5
2024-04-03
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_struct_ref_seq_dif.details
Structure of the Chloroplast Group II Intron Splicing Factor CRS2
Structure of the Chloroplast Group II Intron Splicing Factor CRS2
N
RCSB
Y
RCSB
2003-12-22
REL
REL
HOH
water
1RYB
CRS2 through K178
PDB
experimental model
HOH
201
2
HOH
HOH
202
A
HOH
202
2
HOH
HOH
203
A
HOH
203
2
HOH
HOH
204
A
HOH
204
2
HOH
HOH
205
A
HOH
205
2
HOH
HOH
206
A
HOH
206
2
HOH
HOH
207
A
HOH
207
2
HOH
HOH
208
A
HOH
208
2
HOH
HOH
209
A
HOH
209
2
HOH
HOH
210
A
HOH
210
2
HOH
HOH
211
A
HOH
211
2
HOH
HOH
212
A
HOH
212
2
HOH
HOH
213
A
HOH
213
2
HOH
HOH
214
A
HOH
214
2
HOH
HOH
215
A
HOH
215
2
HOH
HOH
216
A
HOH
216
2
HOH
HOH
217
A
HOH
217
2
HOH
HOH
218
A
HOH
218
2
HOH
HOH
219
A
HOH
219
2
HOH
HOH
220
A
HOH
220
2
HOH
HOH
221
A
HOH
221
2
HOH
HOH
222
A
HOH
222
2
HOH
HOH
223
A
HOH
223
2
HOH
HOH
224
A
HOH
224
2
HOH
HOH
225
A
HOH
225
2
HOH
HOH
226
A
HOH
226
2
HOH
HOH
227
A
HOH
227
2
HOH
HOH
228
A
HOH
228
2
HOH
HOH
229
A
HOH
229
2
HOH
HOH
230
A
HOH
230
2
HOH
HOH
231
A
HOH
231
2
HOH
HOH
232
A
HOH
232
2
HOH
HOH
233
A
HOH
233
2
HOH
HOH
234
A
HOH
234
2
HOH
HOH
235
A
HOH
235
2
HOH
HOH
236
A
HOH
236
2
HOH
HOH
237
A
HOH
237
2
HOH
HOH
238
A
HOH
238
2
HOH
HOH
239
A
HOH
240
2
HOH
HOH
240
A
HOH
241
2
HOH
HOH
241
A
HOH
242
2
HOH
HOH
242
A
HOH
243
2
HOH
HOH
243
A
n
1
0
A
GLU
1
n
2
GLU
1
A
TYR
2
n
3
TYR
2
A
THR
3
n
4
THR
3
A
PRO
4
n
5
PRO
4
A
TRP
5
n
6
TRP
5
A
LEU
6
n
7
LEU
6
A
ILE
7
n
8
ILE
7
A
ALA
8
n
9
ALA
8
A
GLY
9
n
10
GLY
9
A
LEU
10
n
11
LEU
10
A
GLY
11
n
12
GLY
11
A
ASN
12
n
13
ASN
12
A
PRO
13
n
14
PRO
13
A
GLY
14
n
15
GLY
14
A
ASN
15
n
16
ASN
15
A
LYS
16
n
17
LYS
16
A
TYR
17
n
18
TYR
17
A
TYR
18
n
19
TYR
18
A
GLY
19
n
20
GLY
19
A
THR
20
n
21
THR
20
A
ARG
21
n
22
ARG
21
A
HIS
22
n
23
HIS
22
A
ASN
23
n
24
ASN
23
A
VAL
24
n
25
VAL
24
A
GLY
25
n
26
GLY
25
A
PHE
26
n
27
PHE
26
A
GLU
27
n
28
GLU
27
A
MET
28
n
29
MET
28
A
VAL
29
n
30
VAL
29
A
ASP
30
n
31
ASP
30
A
ARG
31
n
32
ARG
31
A
ILE
32
n
33
ILE
32
A
ALA
33
n
34
ALA
33
A
ALA
34
n
35
ALA
34
A
GLU
35
n
36
GLU
35
A
GLU
36
n
37
GLU
36
A
GLY
37
n
38
GLY
37
A
ILE
38
n
39
ILE
38
A
THR
39
n
40
THR
39
A
MET
40
n
41
MET
40
A
ASN
41
n
42
ASN
41
A
THR
42
n
43
THR
42
A
ASN
43
n
44
ASN
43
A
GLN
44
n
45
GLN
44
A
PHE
45
n
46
PHE
45
A
LYS
46
n
47
LYS
46
A
SER
47
n
48
SER
47
A
LEU
48
n
49
LEU
48
A
LEU
49
n
50
LEU
49
A
GLY
50
n
51
GLY
50
A
THR
51
n
52
THR
51
A
GLY
52
n
53
GLY
52
A
SER
53
n
54
SER
53
A
ILE
54
n
55
ILE
54
A
GLY
55
n
56
GLY
55
A
GLU
56
n
57
GLU
56
A
VAL
57
n
58
VAL
57
A
PRO
58
n
59
PRO
58
A
VAL
59
n
60
VAL
59
A
LEU
60
n
61
LEU
60
A
VAL
61
n
62
VAL
61
A
VAL
62
n
63
VAL
62
A
LYS
63
n
64
LYS
63
A
PRO
64
n
65
PRO
64
A
GLN
65
n
66
GLN
65
A
SER
66
n
67
SER
66
A
TYR
67
n
68
TYR
67
A
MET
68
n
69
MET
68
A
ASN
69
n
70
ASN
69
A
TYR
70
n
71
TYR
70
A
SER
71
n
72
SER
71
A
GLY
72
n
73
GLY
72
A
GLU
73
n
74
GLU
73
A
ALA
74
n
75
ALA
74
A
ILE
75
n
76
ILE
75
A
GLY
76
n
77
GLY
76
A
PRO
77
n
78
PRO
77
A
LEU
78
n
79
LEU
78
A
ALA
79
n
80
ALA
79
A
ALA
80
n
81
ALA
80
A
TYR
81
n
82
TYR
81
A
TYR
82
n
83
TYR
82
A
GLN
83
n
84
GLN
83
A
VAL
84
n
85
VAL
84
A
PRO
85
n
86
PRO
85
A
LEU
86
n
87
LEU
86
A
ARG
87
n
88
ARG
87
A
HIS
88
n
89
HIS
88
A
ILE
89
n
90
ILE
89
A
LEU
90
n
91
LEU
90
A
LEU
91
n
92
LEU
91
A
ILE
92
n
93
ILE
92
A
TYR
93
n
94
TYR
93
A
ASP
94
n
95
ASP
94
A
ASP
95
n
96
ASP
95
A
THR
96
n
97
THR
96
A
SER
97
n
98
SER
97
A
LEU
98
n
99
LEU
98
A
PRO
99
n
100
PRO
99
A
ASN
100
n
101
ASN
100
A
GLY
101
n
102
GLY
101
A
VAL
102
n
103
VAL
102
A
LEU
103
n
104
LEU
103
A
ARG
104
n
105
ARG
104
A
LEU
105
n
106
LEU
105
A
GLN
106
n
107
GLN
106
A
LYS
107
n
108
LYS
107
A
LYS
108
n
109
LYS
108
A
n
110
109
A
n
111
110
A
n
112
111
A
n
113
112
A
ARG
113
n
114
ARG
113
A
HIS
114
n
115
HIS
114
A
ASN
115
n
116
ASN
115
A
GLY
116
n
117
GLY
116
A
LEU
117
n
118
LEU
117
A
GLN
118
n
119
GLN
118
A
ASN
119
n
120
ASN
119
A
VAL
120
n
121
VAL
120
A
ILE
121
n
122
ILE
121
A
GLU
122
n
123
GLU
122
A
HIS
123
n
124
HIS
123
A
LEU
124
n
125
LEU
124
A
ASP
125
n
126
ASP
125
A
GLY
126
n
127
GLY
126
A
ARG
127
n
128
ARG
127
A
ARG
128
n
129
ARG
128
A
GLU
129
n
130
GLU
129
A
PHE
130
n
131
PHE
130
A
PRO
131
n
132
PRO
131
A
ARG
132
n
133
ARG
132
A
LEU
133
n
134
LEU
133
A
SER
134
n
135
SER
134
A
ILE
135
n
136
ILE
135
A
GLY
136
n
137
GLY
136
A
ILE
137
n
138
ILE
137
A
GLY
138
n
139
GLY
138
A
SER
139
n
140
SER
139
A
PRO
140
n
141
PRO
140
A
PRO
141
n
142
PRO
141
A
GLY
142
n
143
GLY
142
A
LYS
143
n
144
LYS
143
A
MET
144
n
145
MET
144
A
ASP
145
n
146
ASP
145
A
PRO
146
n
147
PRO
146
A
ARG
147
n
148
ARG
147
A
ALA
148
n
149
ALA
148
A
PHE
149
n
150
PHE
149
A
LEU
150
n
151
LEU
150
A
LEU
151
n
152
LEU
151
A
GLN
152
n
153
GLN
152
A
LYS
153
n
154
LYS
153
A
PHE
154
n
155
PHE
154
A
SER
155
n
156
SER
155
A
SER
156
n
157
SER
156
A
GLU
157
n
158
GLU
157
A
GLU
158
n
159
GLU
158
A
ARG
159
n
160
ARG
159
A
VAL
160
n
161
VAL
160
A
GLN
161
n
162
GLN
161
A
ILE
162
n
163
ILE
162
A
ASP
163
n
164
ASP
163
A
THR
164
n
165
THR
164
A
ALA
165
n
166
ALA
165
A
LEU
166
n
167
LEU
166
A
GLU
167
n
168
GLU
167
A
GLN
168
n
169
GLN
168
A
GLY
169
n
170
GLY
169
A
VAL
170
n
171
VAL
170
A
ASP
171
n
172
ASP
171
A
ALA
172
n
173
ALA
172
A
VAL
173
n
174
VAL
173
A
ARG
174
n
175
ARG
174
A
THR
175
n
176
THR
175
A
LEU
176
n
177
LEU
176
A
VAL
177
n
178
VAL
177
A
LEU
178
n
179
LEU
178
A
LYS
179
n
180
LYS
179
A
GLY
180
n
181
GLY
180
A
PHE
181
n
182
PHE
181
A
SER
182
n
183
SER
182
A
GLY
183
n
184
GLY
183
A
SER
184
n
185
SER
184
A
THR
185
n
186
THR
185
A
GLU
186
n
187
GLU
186
A
ARG
187
n
188
ARG
187
A
PHE
188
n
189
PHE
188
A
ASN
189
n
190
ASN
189
A
LEU
190
n
191
LEU
190
A
VAL
191
n
192
VAL
191
A
GLN
192
n
193
GLN
192
A
LYS
193
n
194
LYS
193
A
LEU
194
n
195
LEU
194
A
GLU
195
n
196
GLU
195
A
HIS
196
n
197
HIS
196
A
HIS
197
n
198
HIS
197
A
HIS
198
n
199
HIS
198
A
n
200
199
A
n
201
200
A
n
202
201
A
author_defined_assembly
1
monomeric
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
THR
42
A
N
THR
43
A
O
LEU
49
A
O
LEU
50
A
N
GLY
52
A
N
GLY
53
A
O
VAL
59
A
O
VAL
60
A
O
LEU
60
A
O
LEU
61
A
N
ILE
7
A
N
ILE
8
A
N
ALA
8
A
N
ALA
9
A
O
LEU
90
A
O
LEU
91
A
N
LEU
91
A
N
LEU
92
A
O
LEU
133
A
O
LEU
134
A
O
SER
134
A
O
SER
135
A
N
ARG
104
A
N
ARG
105
1
A
CG
GLU
1
A
CG
GLU
2
1
Y
1
A
CD
GLU
1
A
CD
GLU
2
1
Y
1
A
OE1
GLU
1
A
OE1
GLU
2
1
Y
1
A
OE2
GLU
1
A
OE2
GLU
2
1
Y
1
A
CG
ARG
113
A
CG
ARG
114
1
Y
1
A
CD
ARG
113
A
CD
ARG
114
1
Y
1
A
NE
ARG
113
A
NE
ARG
114
1
Y
1
A
CZ
ARG
113
A
CZ
ARG
114
1
Y
1
A
NH1
ARG
113
A
NH1
ARG
114
1
Y
1
A
NH2
ARG
113
A
NH2
ARG
114
1
Y
1
A
CG
LYS
143
A
CG
LYS
144
1
Y
1
A
CD
LYS
143
A
CD
LYS
144
1
Y
1
A
CE
LYS
143
A
CE
LYS
144
1
Y
1
A
NZ
LYS
143
A
NZ
LYS
144
1
Y
1
A
MET
0
A
MET
1
1
Y
1
A
GLY
109
A
GLY
110
1
Y
1
A
GLY
110
A
GLY
111
1
Y
1
A
HIS
111
A
HIS
112
1
Y
1
A
GLY
112
A
GLY
113
1
Y
1
A
HIS
199
A
HIS
200
1
Y
1
A
HIS
200
A
HIS
201
1
Y
1
A
HIS
201
A
HIS
202
1
Y
1
A
PHE
181
-17.15
1
A
A
GLY
PHE
180
181
-148.87
1
-6.96
0.90
118.30
111.34
A
A
A
CB
CG
OD2
ASP
ASP
ASP
30
30
30
N
1
-11.50
1.90
111.40
99.90
A
A
A
CB
CA
C
VAL
VAL
VAL
62
62
62
N
1
5.41
0.90
118.30
123.71
A
A
A
CB
CG
OD1
ASP
ASP
ASP
125
125
125
N
1
-21.32
2.10
128.40
107.08
A
A
A
C
N
CD
PRO
PRO
PRO
140
141
141
Y
1
-10.64
1.60
122.70
112.06
A
A
A
O
C
N
LYS
LYS
MET
143
143
144
Y
1
28.42
2.50
121.70
150.12
A
A
A
C
N
CA
LYS
MET
MET
143
144
144
Y
1
14.41
2.00
110.40
124.81
A
A
A
CB
CA
C
MET
MET
MET
144
144
144
N
1
25.02
3.00
112.40
137.42
A
A
A
CB
CG
SD
MET
MET
MET
144
144
144
N
1
-9.60
1.60
100.20
90.60
A
A
A
CG
SD
CE
MET
MET
MET
144
144
144
N
1
5.74
0.90
118.30
124.04
A
A
A
CB
CG
OD1
ASP
ASP
ASP
163
163
163
N
1
-5.89
0.90
118.30
112.41
A
A
A
CB
CG
OD2
ASP
ASP
ASP
163
163
163
N
1
-18.44
2.40
113.90
95.46
A
A
A
CA
CB
CG
PHE
PHE
PHE
181
181
181
N
1
-20.54
2.10
120.10
99.56
A
A
A
CA
C
O
PHE
PHE
PHE
181
181
181
N
1
30.32
2.20
117.20
147.52
A
A
A
CA
C
N
PHE
PHE
SER
181
181
182
Y
1
-12.32
1.60
122.70
110.38
A
A
A
O
C
N
PHE
PHE
SER
181
181
182
Y
1
16.35
2.50
121.70
138.05
A
A
A
C
N
CA
PHE
SER
SER
181
182
182
Y
1
13.31
2.10
122.30
135.61
A
A
A
C
N
CA
SER
GLY
GLY
182
183
183
Y
1
A
A
CD
OE2
GLU
GLU
27
27
0.080
0.011
1.252
1.332
N
1
A
A
CD
OE2
GLU
GLU
122
122
0.068
0.011
1.252
1.320
N
1
A
A
CD
OE2
GLU
GLU
129
129
0.069
0.011
1.252
1.321
N
1
A
A
CA
CB
MET
MET
144
144
-0.182
0.022
1.535
1.353
N
1
A
A
CD
OE2
GLU
GLU
158
158
0.067
0.011
1.252
1.319
N
1
A
A
CD
OE2
GLU
GLU
167
167
0.070
0.011
1.252
1.322
N
1
A
A
N
CA
PHE
PHE
181
181
0.157
0.020
1.459
1.616
N
1
A
A
CD
OE2
GLU
GLU
186
186
0.070
0.011
1.252
1.322
N
1
A
TYR
67
89.89
137.61
1
A
MET
68
-27.65
-68.33
1
A
LEU
124
-87.04
33.27
1
A
GLU
129
-65.71
32.60
1
A
MET
144
80.54
14.05
1
A
ASP
145
73.02
177.29
1
A
LYS
179
-59.30
-77.49
1
A
SER
182
-110.73
60.74
0.278
0.195
0.1991
0.199
1.75
15.0
755
16370
14897
5
91
RANDOM
1
THROUGHOUT
2.00
1.00
MOLECULAR REPLACEMENT
CRS2 through K178
Engh & Huber
bulk solvent modelled with TNT
109.
0.85
1.75
15.0
42
1557
0
0
1515
0.014
2.73
24.3
1.75
15.00
1RYN
16370
14897
2.00
1.00
0.093
1
11.8
3.8
91
1.75
1.84
3.3
2216
0.246
3.7
95.5
data reduction
MOSFLM
data scaling
SCALA
phasing
EPMR
refinement
TNT
data scaling
CCP4
(SCALA)
Structure of the Chloroplast Group II Intron Splicing Factor CRS2
1
N
N
2
N
N
A
THR
20
A
THR
21
HELX_P
A
HIS
22
A
HIS
23
5
1
3
A
ASN
23
A
ASN
24
HELX_P
A
GLY
37
A
GLY
38
1
2
15
A
TYR
67
A
TYR
68
HELX_P
A
TYR
70
A
TYR
71
5
3
4
A
SER
71
A
SER
72
HELX_P
A
GLN
83
A
GLN
84
1
4
13
A
PRO
85
A
PRO
86
HELX_P
A
ARG
87
A
ARG
88
5
5
3
A
HIS
114
A
HIS
115
HELX_P
A
LEU
124
A
LEU
125
1
6
11
A
SER
155
A
SER
156
HELX_P
A
LEU
178
A
LEU
179
1
7
24
A
SER
184
A
SER
185
HELX_P
A
HIS
196
A
HIS
197
1
8
13
TRANSLATION
ALPHA-BETA, TRANSLATION
A
PHE
181
A
PHE
182
1
A
SER
182
A
SER
183
-23.20
Q9M5P4_MAIZE
UNP
1
58
Q9M5P4
EYTPWLIAGLGNPGNKYYGTRHNVGFEMVDRIAAEEGITMNTIQSKSLLGIGSIGEVPVLVVKPQSYMNYSGEAIGPLAA
YYQVPLRHILLIYDDTSLPNGVLRLQKKGGHGRHNGLQNVIEHLDGRREFPRLSIGIGSPPGKMDPRAFLLQKFSSEERV
QIDTALEQGVDAVRTLVLKGFSGSTERFNLVQK
58
250
1RYN
1
193
Q9M5P4
A
1
2
194
1
cloning artifact
MET
0
1RYN
A
Q9M5P4
UNP
1
1
ILE
engineered mutation
ASN
43
1RYN
A
Q9M5P4
UNP
100
44
1
SER
engineered mutation
PHE
45
1RYN
A
Q9M5P4
UNP
102
46
1
ILE
engineered mutation
THR
51
1RYN
A
Q9M5P4
UNP
108
52
1
expression tag
LEU
194
1RYN
A
Q9M5P4
UNP
195
1
expression tag
GLU
195
1RYN
A
Q9M5P4
UNP
196
1
expression tag
HIS
196
1RYN
A
Q9M5P4
UNP
197
1
expression tag
HIS
197
1RYN
A
Q9M5P4
UNP
198
1
expression tag
HIS
198
1RYN
A
Q9M5P4
UNP
199
1
expression tag
HIS
199
1RYN
A
Q9M5P4
UNP
200
1
expression tag
HIS
200
1RYN
A
Q9M5P4
UNP
201
1
expression tag
HIS
201
1RYN
A
Q9M5P4
UNP
202
7
anti-parallel
anti-parallel
parallel
parallel
parallel
anti-parallel
A
THR
42
A
THR
43
A
GLN
44
A
GLN
45
A
SER
47
A
SER
48
A
ILE
54
A
ILE
55
A
VAL
57
A
VAL
58
A
PRO
64
A
PRO
65
A
TRP
5
A
TRP
6
A
GLY
9
A
GLY
10
A
ILE
89
A
ILE
90
A
ASP
95
A
ASP
96
A
ARG
132
A
ARG
133
A
GLY
136
A
GLY
137
A
LEU
103
A
LEU
104
A
GLN
106
A
GLN
107
19
orthorhombic
P 21 21 21