0.034400
0.000000
0.000000
0.000000
0.034400
0.000000
0.000000
0.000000
0.005414
0.000000
0.000000
0.000000
Thickman, K.R.
Sickmier, E.A.
Kielkopf, C.L.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
8
90.00
90.00
90.00
29.070
29.070
184.710
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
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
C12 H26 O7
282.331
HEXAETHYLENE GLYCOL
POLYETHYLENE GLYCOL PEG400
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
C5 H11 N O2
117.146
y
VALINE
L-peptide linking
Zn 2
65.409
ZINC ION
non-polymer
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
O
N
124
N
H
N
125
N
H
N
126
N
N
N
127
S
C
N
128
N
C
N
129
N
O
N
130
S
C
N
131
N
C
N
132
N
C
N
133
N
C
N
134
N
O
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
H
N
145
N
H
N
146
N
H
N
147
N
H
N
148
N
N
N
149
S
C
N
150
N
C
N
151
N
O
N
152
N
C
N
153
N
C
N
154
N
C
N
155
N
C
N
156
N
O
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
H
N
170
N
N
N
171
S
C
N
172
N
C
N
173
N
O
N
174
N
C
N
175
N
C
N
176
N
C
N
177
N
C
N
178
N
N
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
H
N
188
N
H
N
189
N
H
N
190
N
H
N
191
N
H
N
192
N
H
N
193
N
H
N
194
N
H
N
195
N
N
N
196
S
C
N
197
N
C
N
198
N
O
N
199
N
C
N
200
N
C
N
201
N
S
N
202
N
C
N
203
N
O
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
O
N
216
N
C
N
217
N
C
N
218
N
O
N
219
N
C
N
220
N
C
N
221
N
O
N
222
N
C
N
223
N
C
N
224
N
O
N
225
N
C
N
226
N
C
N
227
N
O
N
228
N
C
N
229
N
C
N
230
N
O
N
231
N
C
N
232
N
C
N
233
N
O
N
234
N
H
N
235
N
H
N
236
N
H
N
237
N
H
N
238
N
H
N
239
N
H
N
240
N
H
N
241
N
H
N
242
N
H
N
243
N
H
N
244
N
H
N
245
N
H
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
Y
265
N
C
Y
266
N
C
Y
267
N
C
Y
268
N
C
Y
269
N
C
Y
270
N
C
N
271
N
O
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
H
N
281
N
H
N
282
N
H
N
283
N
N
N
284
S
C
N
285
N
C
N
286
N
O
N
287
N
C
N
288
N
C
N
289
N
C
N
290
N
O
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
H
N
300
N
N
N
301
S
C
N
302
N
C
N
303
N
O
N
304
N
C
N
305
N
O
N
306
N
O
N
307
N
H
N
308
N
H
N
309
N
H
N
310
N
H
N
311
N
H
N
312
N
H
N
313
N
H
N
314
N
N
N
315
S
C
N
316
N
C
N
317
N
O
N
318
R
C
N
319
N
O
N
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
N
N
332
S
C
N
333
N
C
N
334
N
O
N
335
N
C
Y
336
N
C
Y
337
N
C
Y
338
N
C
Y
339
N
C
Y
340
N
C
Y
341
N
C
N
342
N
O
N
343
N
O
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
N
N
356
S
C
N
357
N
C
N
358
N
O
N
359
N
C
N
360
N
C
N
361
N
C
N
362
N
O
N
363
N
H
N
364
N
H
N
365
N
H
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
ZN
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
sing
N
123
N
sing
N
124
N
doub
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
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
sing
N
188
N
sing
N
189
N
sing
N
190
N
doub
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
sing
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
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
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
Y
258
N
doub
Y
259
N
sing
Y
260
N
sing
N
261
N
sing
Y
262
N
doub
N
263
N
sing
Y
264
N
doub
N
265
N
sing
Y
266
N
sing
N
267
N
sing
N
268
N
sing
N
269
N
sing
N
270
N
sing
N
271
N
sing
N
272
N
sing
N
273
N
sing
N
274
N
sing
N
275
N
sing
N
276
N
doub
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
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
sing
N
291
N
sing
N
292
N
sing
N
293
N
doub
N
294
N
sing
N
295
N
sing
N
296
N
sing
N
297
N
sing
N
298
N
sing
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
doub
N
307
N
sing
N
308
N
sing
N
309
N
sing
N
310
N
sing
N
311
N
sing
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
sing
N
319
N
sing
N
320
N
sing
N
321
N
sing
N
322
N
doub
N
323
N
sing
N
324
N
sing
N
325
N
sing
N
326
N
sing
Y
327
N
doub
Y
328
N
sing
Y
329
N
sing
N
330
N
sing
Y
331
N
doub
N
332
N
sing
Y
333
N
doub
N
334
N
sing
Y
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
N
345
N
sing
N
346
N
doub
N
347
N
sing
N
348
N
sing
N
349
N
sing
N
350
N
sing
N
351
N
sing
N
352
N
sing
N
353
N
sing
N
354
N
sing
N
355
N
sing
N
356
N
sing
N
357
N
sing
UK
J.Mol.Biol.
JMOBAK
0070
0022-2836
366
703
710
10.1016/j.jmb.2006.11.077
17188295
Alternative Conformations at the RNA-binding Surface of the N-terminal U2AF(65) RNA Recognition Motif.
2007
US
Mol.Cell
MOCEFL
2168
1097-2765
23
49
59
10.1016/j.molcel.2006.05.025
16818232
Structural basis of polypyrimidine tract recognition
by the essential splicing factor U2AF65.
2006
10.2210/pdb2hzc/pdb
pdb_00002hzc
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
100
1
CCD
2003-09-15
BRUKER PROTEUM X8
Goebel mirrors
MAD
M
x-ray
1
1.54
1.0
0.9798
1.0
0.9795
1.0
0.9568
1.0
1.54, 0.9798, 0.9795, 0.9568
ROTATING ANODE
BRUKER AXS MICROSTAR
9629.989
Splicing factor U2AF 65 kDa subunit
RRM 1
1
man
polymer
65.409
ZINC ION
2
syn
non-polymer
282.331
HEXAETHYLENE GLYCOL
1
syn
non-polymer
18.015
water
192
nat
water
U2 auxiliary factor 65 kDa subunit, U2 snRNP auxiliary factor large subunit, hU2AF65
no
no
GPLGSARRLYVGNIPFGITEEAMMDFFNAQMRLGGLTQAPGNPVLAVQINQDKNFAFLEFRSVDETTQAMAFDGIIFQGQ
SLKIRRP
GPLGSARRLYVGNIPFGITEEAMMDFFNAQMRLGGLTQAPGNPVLAVQINQDKNFAFLEFRSVDETTQAMAFDGIIFQGQ
SLKIRRP
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
human
Homo
Escherichia
Escherichia coli
sample
U2AF2, U2AF65
9606
Homo sapiens
511693
Escherichia coli BL21
BL21
plasmid
pGEX-6p
1
1.97
37.66
VAPOR DIFFUSION, HANGING DROP
6.5
21% PEGmme550, 200mM Zn acetate, 0.1M MES pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
298
chem_comp_atom
chem_comp_bond
database_2
pdbx_struct_conn_angle
struct_conn
struct_ref_seq_dif
struct_site
repository
Initial release
Version format compliance
Derived calculations
Version format compliance
Data collection
Database references
Derived calculations
1
0
2006-08-29
1
1
2008-05-01
1
2
2011-07-13
1
3
2024-02-21
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_pdbx_struct_conn_angle.ptnr1_auth_comp_id
_pdbx_struct_conn_angle.ptnr1_auth_seq_id
_pdbx_struct_conn_angle.ptnr1_label_alt_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.ptnr1_symmetry
_pdbx_struct_conn_angle.ptnr3_auth_comp_id
_pdbx_struct_conn_angle.ptnr3_auth_seq_id
_pdbx_struct_conn_angle.ptnr3_label_alt_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.ptnr3_symmetry
_pdbx_struct_conn_angle.value
_struct_conn.pdbx_dist_value
_struct_conn.pdbx_ptnr1_label_alt_id
_struct_conn.pdbx_ptnr2_label_alt_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.ptnr1_symmetry
_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_conn.ptnr2_symmetry
_struct_ref_seq_dif.details
_struct_site.pdbx_auth_asym_id
_struct_site.pdbx_auth_comp_id
_struct_site.pdbx_auth_seq_id
2006-08-29
SPRSDE
Structure of U2AF65 variant with polyuridine tract
HETEROGEN
According to authors the ligand P6G is a
fragment of PEG monomethylether 550.
RCSB
Y
RCSB
2006-08-08
REL
REL
ZN
ZINC ION
P6G
HEXAETHYLENE GLYCOL
HOH
water
ZN
2
2
ZN
ZN
302
A
ZN
3
2
ZN
ZN
303
A
PEG
1
3
P6G
P6G
301
A
HOH
1
4
HOH
HOH
304
A
HOH
2
4
HOH
HOH
305
A
HOH
3
4
HOH
HOH
306
A
HOH
4
4
HOH
HOH
307
A
HOH
5
4
HOH
HOH
308
A
HOH
6
4
HOH
HOH
309
A
HOH
7
4
HOH
HOH
310
A
HOH
8
4
HOH
HOH
311
A
HOH
9
4
HOH
HOH
312
A
HOH
10
4
HOH
HOH
313
A
HOH
11
4
HOH
HOH
314
A
HOH
12
4
HOH
HOH
315
A
HOH
13
4
HOH
HOH
316
A
HOH
14
4
HOH
HOH
317
A
HOH
15
4
HOH
HOH
318
A
HOH
16
4
HOH
HOH
319
A
HOH
17
4
HOH
HOH
320
A
HOH
18
4
HOH
HOH
321
A
HOH
19
4
HOH
HOH
322
A
HOH
20
4
HOH
HOH
323
A
HOH
21
4
HOH
HOH
324
A
HOH
22
4
HOH
HOH
325
A
HOH
23
4
HOH
HOH
326
A
HOH
24
4
HOH
HOH
327
A
HOH
25
4
HOH
HOH
328
A
HOH
26
4
HOH
HOH
329
A
HOH
27
4
HOH
HOH
330
A
HOH
28
4
HOH
HOH
331
A
HOH
29
4
HOH
HOH
332
A
HOH
30
4
HOH
HOH
333
A
HOH
31
4
HOH
HOH
334
A
HOH
32
4
HOH
HOH
335
A
HOH
33
4
HOH
HOH
336
A
HOH
34
4
HOH
HOH
337
A
HOH
35
4
HOH
HOH
338
A
HOH
36
4
HOH
HOH
339
A
HOH
37
4
HOH
HOH
340
A
HOH
38
4
HOH
HOH
341
A
HOH
39
4
HOH
HOH
342
A
HOH
40
4
HOH
HOH
343
A
HOH
41
4
HOH
HOH
344
A
HOH
42
4
HOH
HOH
345
A
HOH
43
4
HOH
HOH
346
A
HOH
44
4
HOH
HOH
347
A
HOH
45
4
HOH
HOH
348
A
HOH
46
4
HOH
HOH
349
A
HOH
47
4
HOH
HOH
350
A
HOH
48
4
HOH
HOH
351
A
HOH
49
4
HOH
HOH
352
A
HOH
50
4
HOH
HOH
353
A
HOH
51
4
HOH
HOH
354
A
HOH
52
4
HOH
HOH
355
A
HOH
53
4
HOH
HOH
356
A
HOH
54
4
HOH
HOH
357
A
HOH
55
4
HOH
HOH
358
A
HOH
56
4
HOH
HOH
359
A
HOH
57
4
HOH
HOH
360
A
HOH
58
4
HOH
HOH
361
A
HOH
59
4
HOH
HOH
362
A
HOH
60
4
HOH
HOH
363
A
HOH
61
4
HOH
HOH
364
A
HOH
62
4
HOH
HOH
365
A
HOH
63
4
HOH
HOH
366
A
HOH
64
4
HOH
HOH
367
A
HOH
65
4
HOH
HOH
368
A
HOH
66
4
HOH
HOH
369
A
HOH
67
4
HOH
HOH
370
A
HOH
68
4
HOH
HOH
371
A
HOH
69
4
HOH
HOH
372
A
HOH
70
4
HOH
HOH
373
A
HOH
71
4
HOH
HOH
374
A
HOH
72
4
HOH
HOH
375
A
HOH
73
4
HOH
HOH
376
A
HOH
74
4
HOH
HOH
377
A
HOH
75
4
HOH
HOH
378
A
HOH
76
4
HOH
HOH
379
A
HOH
77
4
HOH
HOH
380
A
HOH
78
4
HOH
HOH
381
A
HOH
79
4
HOH
HOH
382
A
HOH
80
4
HOH
HOH
383
A
HOH
81
4
HOH
HOH
384
A
HOH
82
4
HOH
HOH
385
A
HOH
83
4
HOH
HOH
386
A
HOH
84
4
HOH
HOH
387
A
HOH
85
4
HOH
HOH
388
A
HOH
86
4
HOH
HOH
389
A
HOH
87
4
HOH
HOH
390
A
HOH
88
4
HOH
HOH
391
A
HOH
89
4
HOH
HOH
392
A
HOH
90
4
HOH
HOH
393
A
HOH
91
4
HOH
HOH
394
A
HOH
92
4
HOH
HOH
395
A
HOH
93
4
HOH
HOH
396
A
HOH
94
4
HOH
HOH
397
A
HOH
95
4
HOH
HOH
398
A
HOH
96
4
HOH
HOH
399
A
HOH
97
4
HOH
HOH
400
A
HOH
98
4
HOH
HOH
401
A
HOH
99
4
HOH
HOH
402
A
HOH
100
4
HOH
HOH
403
A
HOH
101
4
HOH
HOH
404
A
HOH
102
4
HOH
HOH
405
A
HOH
103
4
HOH
HOH
406
A
HOH
104
4
HOH
HOH
407
A
HOH
105
4
HOH
HOH
408
A
HOH
106
4
HOH
HOH
409
A
HOH
107
4
HOH
HOH
410
A
HOH
108
4
HOH
HOH
411
A
HOH
109
4
HOH
HOH
412
A
HOH
110
4
HOH
HOH
413
A
HOH
111
4
HOH
HOH
414
A
HOH
112
4
HOH
HOH
415
A
HOH
113
4
HOH
HOH
416
A
HOH
114
4
HOH
HOH
417
A
HOH
115
4
HOH
HOH
418
A
HOH
116
4
HOH
HOH
419
A
HOH
117
4
HOH
HOH
420
A
HOH
118
4
HOH
HOH
421
A
HOH
119
4
HOH
HOH
422
A
HOH
120
4
HOH
HOH
423
A
HOH
121
4
HOH
HOH
424
A
HOH
122
4
HOH
HOH
425
A
HOH
123
4
HOH
HOH
426
A
HOH
124
4
HOH
HOH
427
A
HOH
125
4
HOH
HOH
428
A
HOH
126
4
HOH
HOH
429
A
HOH
127
4
HOH
HOH
430
A
HOH
128
4
HOH
HOH
431
A
HOH
129
4
HOH
HOH
432
A
HOH
130
4
HOH
HOH
433
A
HOH
131
4
HOH
HOH
434
A
HOH
132
4
HOH
HOH
435
A
HOH
133
4
HOH
HOH
436
A
HOH
134
4
HOH
HOH
437
A
HOH
135
4
HOH
HOH
438
A
HOH
136
4
HOH
HOH
439
A
HOH
137
4
HOH
HOH
440
A
HOH
138
4
HOH
HOH
441
A
HOH
139
4
HOH
HOH
442
A
HOH
140
4
HOH
HOH
443
A
HOH
141
4
HOH
HOH
444
A
HOH
142
4
HOH
HOH
445
A
HOH
143
4
HOH
HOH
446
A
HOH
144
4
HOH
HOH
447
A
HOH
145
4
HOH
HOH
448
A
HOH
146
4
HOH
HOH
449
A
HOH
147
4
HOH
HOH
450
A
HOH
148
4
HOH
HOH
451
A
HOH
149
4
HOH
HOH
452
A
HOH
150
4
HOH
HOH
453
A
HOH
151
4
HOH
HOH
454
A
HOH
152
4
HOH
HOH
455
A
HOH
153
4
HOH
HOH
456
A
HOH
154
4
HOH
HOH
457
A
HOH
156
4
HOH
HOH
458
A
HOH
157
4
HOH
HOH
459
A
HOH
158
4
HOH
HOH
460
A
HOH
159
4
HOH
HOH
461
A
HOH
160
4
HOH
HOH
462
A
HOH
161
4
HOH
HOH
463
A
HOH
162
4
HOH
HOH
464
A
HOH
163
4
HOH
HOH
465
A
HOH
165
4
HOH
HOH
466
A
HOH
166
4
HOH
HOH
467
A
HOH
167
4
HOH
HOH
468
A
HOH
168
4
HOH
HOH
469
A
HOH
169
4
HOH
HOH
470
A
HOH
170
4
HOH
HOH
471
A
HOH
171
4
HOH
HOH
472
A
HOH
172
4
HOH
HOH
473
A
HOH
173
4
HOH
HOH
474
A
HOH
175
4
HOH
HOH
475
A
HOH
176
4
HOH
HOH
476
A
HOH
177
4
HOH
HOH
477
A
HOH
178
4
HOH
HOH
478
A
HOH
179
4
HOH
HOH
479
A
HOH
180
4
HOH
HOH
480
A
HOH
181
4
HOH
HOH
481
A
HOH
182
4
HOH
HOH
482
A
HOH
183
4
HOH
HOH
483
A
HOH
184
4
HOH
HOH
484
A
HOH
185
4
HOH
HOH
485
A
HOH
186
4
HOH
HOH
486
A
HOH
187
4
HOH
HOH
487
A
HOH
188
4
HOH
HOH
488
A
HOH
189
4
HOH
HOH
489
A
HOH
190
4
HOH
HOH
490
A
HOH
191
4
HOH
HOH
491
A
HOH
192
4
HOH
HOH
492
A
HOH
193
4
HOH
HOH
493
A
HOH
194
4
HOH
HOH
494
A
HOH
195
4
HOH
HOH
495
A
GLY
143
n
1
GLY
143
A
PRO
144
n
2
PRO
144
A
LEU
145
n
3
LEU
145
A
GLY
146
n
4
GLY
146
A
SER
147
n
5
SER
147
A
ALA
148
n
6
ALA
148
A
ARG
149
n
7
ARG
149
A
ARG
150
n
8
ARG
150
A
LEU
151
n
9
LEU
151
A
TYR
152
n
10
TYR
152
A
VAL
153
n
11
VAL
153
A
GLY
154
n
12
GLY
154
A
ASN
155
n
13
ASN
155
A
ILE
156
n
14
ILE
156
A
PRO
157
n
15
PRO
157
A
PHE
158
n
16
PHE
158
A
GLY
159
n
17
GLY
159
A
ILE
160
n
18
ILE
160
A
THR
161
n
19
THR
161
A
GLU
162
n
20
GLU
162
A
GLU
163
n
21
GLU
163
A
ALA
164
n
22
ALA
164
A
MET
165
n
23
MET
165
A
MET
166
n
24
MET
166
A
ASP
167
n
25
ASP
167
A
PHE
168
n
26
PHE
168
A
PHE
169
n
27
PHE
169
A
ASN
170
n
28
ASN
170
A
ALA
171
n
29
ALA
171
A
GLN
172
n
30
GLN
172
A
MET
173
n
31
MET
173
A
ARG
174
n
32
ARG
174
A
LEU
175
n
33
LEU
175
A
GLY
176
n
34
GLY
176
A
GLY
177
n
35
GLY
177
A
LEU
178
n
36
LEU
178
A
THR
179
n
37
THR
179
A
GLN
180
n
38
GLN
180
A
ALA
181
n
39
ALA
181
A
PRO
182
n
40
PRO
182
A
GLY
183
n
41
GLY
183
A
ASN
184
n
42
ASN
184
A
PRO
185
n
43
PRO
185
A
VAL
186
n
44
VAL
186
A
LEU
187
n
45
LEU
187
A
ALA
188
n
46
ALA
188
A
VAL
189
n
47
VAL
189
A
GLN
190
n
48
GLN
190
A
ILE
191
n
49
ILE
191
A
ASN
192
n
50
ASN
192
A
GLN
193
n
51
GLN
193
A
ASP
194
n
52
ASP
194
A
LYS
195
n
53
LYS
195
A
ASN
196
n
54
ASN
196
A
PHE
197
n
55
PHE
197
A
ALA
198
n
56
ALA
198
A
PHE
199
n
57
PHE
199
A
LEU
200
n
58
LEU
200
A
GLU
201
n
59
GLU
201
A
PHE
202
n
60
PHE
202
A
ARG
203
n
61
ARG
203
A
SER
204
n
62
SER
204
A
VAL
205
n
63
VAL
205
A
ASP
206
n
64
ASP
206
A
GLU
207
n
65
GLU
207
A
THR
208
n
66
THR
208
A
THR
209
n
67
THR
209
A
GLN
210
n
68
GLN
210
A
ALA
211
n
69
ALA
211
A
MET
212
n
70
MET
212
A
ALA
213
n
71
ALA
213
A
PHE
214
n
72
PHE
214
A
ASP
215
n
73
ASP
215
A
GLY
216
n
74
GLY
216
A
ILE
217
n
75
ILE
217
A
ILE
218
n
76
ILE
218
A
PHE
219
n
77
PHE
219
A
GLN
220
n
78
GLN
220
A
GLY
221
n
79
GLY
221
A
GLN
222
n
80
GLN
222
A
SER
223
n
81
SER
223
A
LEU
224
n
82
LEU
224
A
LYS
225
n
83
LYS
225
A
ILE
226
n
84
ILE
226
A
ARG
227
n
85
ARG
227
A
ARG
228
n
86
ARG
228
A
PRO
229
n
87
PRO
229
A
author_and_software_defined_assembly
PQS
1
monomeric
software_defined_assembly
PISA
2
dimeric
510
-86
10660
A
GLU
162
B
A
OE1
GLU
20
1_555
A
ZN
302
B
ZN
ZN
1_555
A
HOH
317
A
E
O
HOH
1_555
145.3
A
GLU
162
B
A
OE1
GLU
20
1_555
A
ZN
302
B
ZN
ZN
1_555
A
HOH
317
B
E
O
HOH
1_555
96.2
A
HOH
317
A
E
O
HOH
1_555
A
ZN
302
B
ZN
ZN
1_555
A
HOH
317
B
E
O
HOH
1_555
82.2
A
GLU
162
B
A
OE1
GLU
20
1_555
A
ZN
302
B
ZN
ZN
1_555
A
HOH
390
E
O
HOH
1_555
60.6
A
HOH
317
A
E
O
HOH
1_555
A
ZN
302
B
ZN
ZN
1_555
A
HOH
390
E
O
HOH
1_555
122.3
A
HOH
317
B
E
O
HOH
1_555
A
ZN
302
B
ZN
ZN
1_555
A
HOH
390
E
O
HOH
1_555
154.8
A
GLU
162
B
A
OE1
GLU
20
1_555
A
ZN
302
B
ZN
ZN
1_555
A
HOH
390
E
O
HOH
8_555
60.5
A
HOH
317
A
E
O
HOH
1_555
A
ZN
302
B
ZN
ZN
1_555
A
HOH
390
E
O
HOH
8_555
86.1
A
HOH
317
B
E
O
HOH
1_555
A
ZN
302
B
ZN
ZN
1_555
A
HOH
390
E
O
HOH
8_555
74.6
A
HOH
390
E
O
HOH
1_555
A
ZN
302
B
ZN
ZN
1_555
A
HOH
390
E
O
HOH
8_555
99.2
A
GLU
163
A
OE2
GLU
21
1_555
A
ZN
303
C
ZN
ZN
1_555
A
ASP
167
A
OD1
ASP
25
1_555
106.6
A
GLU
163
A
OE2
GLU
21
1_555
A
ZN
303
C
ZN
ZN
1_555
A
ASP
167
A
OD2
ASP
25
1_555
96.3
A
ASP
167
A
OD1
ASP
25
1_555
A
ZN
303
C
ZN
ZN
1_555
A
ASP
167
A
OD2
ASP
25
1_555
51.2
A
GLU
163
A
OE2
GLU
21
1_555
A
ZN
303
C
ZN
ZN
1_555
A
PRO
229
A
O
PRO
87
1_545
97.8
A
ASP
167
A
OD1
ASP
25
1_555
A
ZN
303
C
ZN
ZN
1_555
A
PRO
229
A
O
PRO
87
1_545
142.6
A
ASP
167
A
OD2
ASP
25
1_555
A
ZN
303
C
ZN
ZN
1_555
A
PRO
229
A
O
PRO
87
1_545
99.1
A
GLU
163
A
OE2
GLU
21
1_555
A
ZN
303
C
ZN
ZN
1_555
A
HOH
329
E
O
HOH
1_545
94.4
A
ASP
167
A
OD1
ASP
25
1_555
A
ZN
303
C
ZN
ZN
1_555
A
HOH
329
E
O
HOH
1_545
81.0
A
ASP
167
A
OD2
ASP
25
1_555
A
ZN
303
C
ZN
ZN
1_555
A
HOH
329
E
O
HOH
1_545
132.0
A
PRO
229
A
O
PRO
87
1_545
A
ZN
303
C
ZN
ZN
1_555
A
HOH
329
E
O
HOH
1_545
125.5
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
0.0000000000
-1.0000000000
0.0000000000
-1.0000000000
0.0000000000
0.0000000000
0.0000000000
0.0000000000
-1.0000000000
8_555
-y,-x,-z+1/2
crystal symmetry operation
0.0000000000
0.0000000000
92.3550000000
A
N
ALA
188
A
N
ALA
46
A
O
GLU
201
A
O
GLU
59
A
O
ALA
198
A
O
ALA
56
A
N
VAL
153
A
N
VAL
11
A
N
GLY
154
A
N
GLY
12
A
O
LYS
225
A
O
LYS
83
A
N
PHE
219
A
N
PHE
77
A
O
GLN
222
A
O
GLN
80
1
A
ZN
302
B
ZN
1
A
A
CE
O
MET
HOH
166
431
1.63
B
1
19.32
2.50
121.70
141.02
A
A
A
C
N
CA
PRO
LEU
LEU
144
145
145
Y
1
-3.11
0.50
120.30
117.19
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
149
149
149
N
1
19.88
1.40
123.60
143.48
A
A
A
CD
NE
CZ
ARG
ARG
ARG
150
150
150
B
B
B
N
1
4.96
0.50
120.30
125.26
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
150
150
150
B
B
B
N
1
-3.95
0.50
120.30
116.35
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
203
203
203
N
1
A
LEU
145
26.84
127.99
1
A
GLN
193
-35.79
-36.20
1
A
ASP
194
156.55
62.98
0.226
0.139
0.137
0.137
1.47
20
773
13454
13454
random
1
0
MAD
Engh & Huber
1.47
20
192
889
21
0
676
2.2
0.007
1.47
20
2HZC
13454
13454
0
0
1
92.1
1.47
1.52
1
82.3
data collection
PROTEUM PLUS
PLUS
data reduction
PROTEUM PLUS
phasing
SOLVE
refinement
SHELXL-97
data reduction
HKL-2000
data scaling
HKL-2000
Crystal structure of the N-terminal RRM of the U2AF large subunit
1
N
N
2
N
N
2
N
N
3
N
N
4
N
N
A
LEU
145
A
LEU
3
HELX_P
A
ALA
148
A
ALA
6
5
1
4
A
THR
161
A
THR
19
HELX_P
A
GLY
176
A
GLY
34
1
2
16
A
SER
204
A
SER
62
HELX_P
A
MET
212
A
MET
70
1
3
9
A
ALA
213
A
ALA
71
HELX_P
A
ASP
215
A
ASP
73
5
4
3
metalc
2.207
B
A
GLU
162
A
OE1
GLU
20
1_555
A
ZN
302
B
ZN
ZN
1_555
metalc
1.698
A
GLU
163
A
OE2
GLU
21
1_555
A
ZN
303
C
ZN
ZN
1_555
metalc
2.769
A
ASP
167
A
OD1
ASP
25
1_555
A
ZN
303
C
ZN
ZN
1_555
metalc
2.059
A
ASP
167
A
OD2
ASP
25
1_555
A
ZN
303
C
ZN
ZN
1_555
metalc
1.973
A
PRO
229
A
O
PRO
87
1_545
A
ZN
303
C
ZN
ZN
1_555
metalc
2.048
A
A
ZN
302
B
ZN
ZN
1_555
A
HOH
317
E
O
HOH
1_555
metalc
1.825
B
A
ZN
302
B
ZN
ZN
1_555
A
HOH
317
E
O
HOH
1_555
metalc
2.675
A
ZN
302
B
ZN
ZN
1_555
A
HOH
390
E
O
HOH
1_555
metalc
2.676
A
ZN
302
B
ZN
ZN
1_555
A
HOH
390
E
O
HOH
8_555
metalc
1.876
A
ZN
303
C
ZN
ZN
1_555
A
HOH
329
E
O
HOH
1_545
RNA BINDING PROTEIN
RNA splicing, RRM, RNA recognition, alternative conformation, RNA BINDING PROTEIN
A
GLY
143
A
GLY
1
1
A
PRO
144
A
PRO
2
4.34
A
PRO
144
A
PRO
2
1
A
LEU
145
A
LEU
3
23.61
U2AF2_HUMAN
UNP
1
148
P26368
ARRLYVGNIPFGITEEAMMDFFNAQMRLGGLTQAPGNPVLAVQINQDKNFAFLEFRSVDETTQAMAFDGIIFQGQSLKIR
RP
148
229
2HZC
148
229
P26368
A
1
6
87
1
cloning artifact
GLY
143
2HZC
A
P26368
UNP
1
1
cloning artifact
PRO
144
2HZC
A
P26368
UNP
2
1
cloning artifact
LEU
145
2HZC
A
P26368
UNP
3
1
cloning artifact
GLY
146
2HZC
A
P26368
UNP
4
1
cloning artifact
SER
147
2HZC
A
P26368
UNP
5
4
2
anti-parallel
anti-parallel
anti-parallel
anti-parallel
A
VAL
186
A
VAL
44
A
ILE
191
A
ILE
49
A
PHE
197
A
PHE
55
A
PHE
202
A
PHE
60
A
ARG
150
A
ARG
8
A
GLY
154
A
GLY
12
A
LYS
225
A
LYS
83
A
ARG
227
A
ARG
85
A
ILE
218
A
ILE
76
A
PHE
219
A
PHE
77
A
GLN
222
A
GLN
80
A
SER
223
A
SER
81
BINDING SITE FOR RESIDUE ZN A 302
A
ZN
302
Software
6
BINDING SITE FOR RESIDUE ZN A 303
A
ZN
303
Software
5
BINDING SITE FOR RESIDUE P6G A 301
A
P6G
301
Software
14
A
GLU
162
A
GLU
20
6
8_555
A
GLU
162
A
GLU
20
6
1_555
A
HOH
317
E
HOH
6
1_555
A
HOH
317
E
HOH
6
8_555
A
HOH
390
E
HOH
6
8_555
A
HOH
390
E
HOH
6
1_555
A
GLU
163
A
GLU
21
5
1_555
A
ASP
167
A
ASP
25
5
1_555
A
PRO
229
A
PRO
87
5
1_545
A
HOH
326
E
HOH
5
1_545
A
HOH
329
E
HOH
5
1_545
A
GLN
172
A
GLN
30
14
1_555
A
ARG
203
A
ARG
61
14
1_655
A
SER
204
A
SER
62
14
1_655
A
ALA
213
A
ALA
71
14
1_555
A
PHE
214
A
PHE
72
14
1_555
A
ASP
215
A
ASP
73
14
1_555
A
GLY
216
A
GLY
74
14
1_555
A
ILE
218
A
ILE
76
14
1_555
A
HOH
319
E
HOH
14
1_555
A
HOH
340
E
HOH
14
1_555
A
HOH
364
E
HOH
14
1_555
A
HOH
370
E
HOH
14
1_555
A
HOH
378
E
HOH
14
1_555
A
HOH
404
E
HOH
14
1_555
96
P 43 21 2