0.007868
0.004542
0.000000
0.000000
0.009085
0.000000
0.000000
0.000000
0.014684
0.00000
0.00000
0.00000
Birdsall, D.L.
Finer-Moore, J.
Stroud, R.M.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
12
90.00
90.00
120.00
127.100
127.100
68.100
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
C24 H23 N5 O6
477.469
10-PROPARGYL-5,8-DIDEAZAFOLIC ACID
non-polymer
C6 H11 N O4 S
193.221
n
N-CARBOXYMETHIONINE
L-peptide linking
C3 H7 N O2 S
121.158
y
CYSTEINE
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
C9 H13 N2 O8 P
308.182
2'-DEOXYURIDINE 5'-MONOPHOSPHATE
DUMP
non-polymer
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
Y
74
N
N
Y
75
N
C
N
76
N
N
Y
77
N
N
Y
78
N
C
N
79
N
O
Y
80
N
C
Y
81
N
C
Y
82
N
C
Y
83
N
C
Y
84
N
C
Y
85
N
C
N
86
N
C
N
87
N
N
Y
88
N
C
Y
89
N
C
Y
90
N
C
Y
91
N
C
Y
92
N
C
Y
93
N
C
N
94
N
C
N
95
N
O
N
96
N
N
N
97
S
C
N
98
N
C
N
99
N
C
N
100
N
C
N
101
N
O
N
102
N
O
N
103
N
C
N
104
N
O
N
105
N
O
N
106
N
C
N
107
N
C
N
108
N
C
N
109
N
H
N
110
N
H
N
111
N
H
N
112
N
H
N
113
N
H
N
114
N
H
N
115
N
H
N
116
N
H
N
117
N
H
N
118
N
H
N
119
N
H
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
H
N
128
N
H
N
129
N
H
N
130
N
H
N
131
N
H
N
132
N
N
N
133
S
C
N
134
N
C
N
135
N
C
N
136
N
S
N
137
N
C
N
138
N
C
N
139
N
O
N
140
N
C
N
141
N
O
N
142
N
O
N
143
N
O
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
H
N
155
N
N
N
156
R
C
N
157
N
C
N
158
N
O
N
159
N
C
N
160
N
S
N
161
N
O
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
O
N
177
N
N
N
178
N
O
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
N
N
190
S
C
N
191
N
C
N
192
N
O
N
193
N
C
N
194
N
C
N
195
N
C
N
196
N
O
N
197
N
O
N
198
N
O
N
199
N
H
N
200
N
H
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
N
N
209
N
C
N
210
N
C
N
211
N
O
N
212
N
O
N
213
N
H
N
214
N
H
N
215
N
H
N
216
N
H
N
217
N
H
N
218
N
N
N
219
S
C
N
220
N
C
N
221
N
O
N
222
N
C
Y
223
N
C
Y
224
N
N
Y
225
N
C
Y
226
N
C
Y
227
N
N
N
228
N
O
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
H
N
237
N
H
N
238
N
H
N
239
N
O
N
240
N
H
N
241
N
H
N
242
N
N
N
243
S
C
N
244
N
C
N
245
N
O
N
246
S
C
N
247
N
C
N
248
N
C
N
249
N
C
N
250
N
O
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
H
N
261
N
H
N
262
N
H
N
263
N
H
N
264
N
N
N
265
S
C
N
266
N
C
N
267
N
O
N
268
N
C
N
269
N
C
N
270
N
C
N
271
N
C
N
272
N
O
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
H
N
284
N
H
N
285
N
H
N
286
N
N
N
287
S
C
N
288
N
C
N
289
N
O
N
290
N
C
N
291
N
C
N
292
N
C
N
293
N
C
N
294
N
N
N
295
N
O
N
296
N
H
N
297
N
H
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
H
N
308
N
H
N
309
N
H
N
310
N
H
N
311
N
N
N
312
S
C
N
313
N
C
N
314
N
O
N
315
N
C
N
316
N
C
N
317
N
S
N
318
N
C
N
319
N
O
N
320
N
H
N
321
N
H
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
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
N
N
355
S
C
N
356
N
C
N
357
N
O
N
358
N
C
N
359
N
C
N
360
N
C
N
361
N
O
N
362
N
H
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
N
N
372
S
C
N
373
N
C
N
374
N
O
N
375
N
C
N
376
N
O
N
377
N
O
N
378
N
H
N
379
N
H
N
380
N
H
N
381
N
H
N
382
N
H
N
383
N
H
N
384
N
H
N
385
N
N
N
386
S
C
N
387
N
C
N
388
N
O
N
389
R
C
N
390
N
O
N
391
N
C
N
392
N
O
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
N
N
403
S
C
N
404
N
C
N
405
N
O
N
406
N
C
Y
407
N
C
Y
408
N
C
Y
409
N
C
Y
410
N
N
Y
411
N
C
Y
412
N
C
Y
413
N
C
Y
414
N
C
Y
415
N
C
N
416
N
O
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
H
N
427
N
H
N
428
N
H
N
429
N
N
N
430
S
C
N
431
N
C
N
432
N
O
N
433
N
C
Y
434
N
C
Y
435
N
C
Y
436
N
C
Y
437
N
C
Y
438
N
C
Y
439
N
C
N
440
N
O
N
441
N
O
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
H
N
452
N
H
N
453
N
N
N
454
N
C
N
455
N
N
N
456
N
C
N
457
N
C
N
458
N
C
N
459
N
O
N
460
N
O
N
461
R
C
N
462
N
C
N
463
S
C
N
464
R
C
N
465
N
O
N
466
N
O
N
467
N
C
N
468
N
O
N
469
N
P
N
470
N
O
N
471
N
O
N
472
N
O
N
473
N
H
N
474
N
H
N
475
N
H
N
476
N
H
N
477
N
H
N
478
N
H
N
479
N
H
N
480
N
H
N
481
N
H
N
482
N
H
N
483
N
H
N
484
N
H
N
485
N
H
N
486
N
N
N
487
S
C
N
488
N
C
N
489
N
O
N
490
N
C
N
491
N
C
N
492
N
C
N
493
N
O
N
494
N
H
N
495
N
H
N
496
N
H
N
497
N
H
N
498
N
H
N
499
N
H
N
500
N
H
N
501
N
H
N
502
N
H
N
503
N
H
N
504
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
Y
70
N
sing
Y
71
N
sing
N
72
N
sing
N
73
N
sing
Y
74
N
doub
N
75
N
sing
N
76
N
sing
Y
77
N
sing
N
78
N
doub
Y
79
N
sing
Y
80
N
doub
Y
81
N
sing
Y
82
N
sing
N
83
N
sing
Y
84
N
doub
N
85
N
sing
Y
86
N
sing
N
87
N
sing
Y
88
N
doub
N
89
N
sing
N
90
N
sing
N
91
N
sing
N
92
N
sing
N
93
N
sing
N
94
N
sing
Y
95
N
doub
Y
96
N
sing
N
97
N
sing
Y
98
N
sing
N
99
N
sing
Y
100
N
doub
N
101
N
sing
Y
102
N
sing
Y
103
N
doub
N
104
N
sing
N
105
N
sing
N
106
N
doub
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
sing
N
114
N
sing
N
115
N
sing
N
116
N
sing
N
117
N
sing
N
118
N
sing
N
119
N
doub
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
N
127
N
sing
N
128
N
trip
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
sing
N
146
N
doub
N
147
N
sing
N
148
N
doub
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
doub
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
sing
N
167
N
sing
N
168
N
sing
N
169
N
sing
N
170
N
sing
N
171
N
doub
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
doub
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
doub
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
doub
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
doub
N
218
N
sing
N
219
N
sing
N
220
N
sing
N
221
N
sing
Y
222
N
sing
Y
223
N
doub
Y
224
N
doub
N
225
N
sing
Y
226
N
sing
N
227
N
sing
Y
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
doub
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
sing
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
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
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
doub
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
sing
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
sing
N
323
N
sing
N
324
N
sing
N
325
N
doub
N
326
N
sing
N
327
N
sing
N
328
N
sing
N
329
N
sing
Y
330
N
doub
Y
331
N
sing
Y
332
N
sing
N
333
N
sing
Y
334
N
doub
N
335
N
sing
Y
336
N
doub
N
337
N
sing
Y
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
sing
N
347
N
sing
N
348
N
doub
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
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
doub
N
366
N
sing
N
367
N
sing
N
368
N
sing
N
369
N
sing
N
370
N
sing
N
371
N
sing
N
372
N
sing
N
373
N
sing
N
374
N
sing
N
375
N
sing
N
376
N
sing
N
377
N
sing
N
378
N
doub
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
sing
N
391
N
sing
N
392
N
sing
N
393
N
sing
N
394
N
doub
N
395
N
sing
N
396
N
sing
N
397
N
sing
N
398
N
sing
Y
399
N
doub
Y
400
N
sing
Y
401
N
sing
N
402
N
sing
Y
403
N
doub
Y
404
N
sing
Y
405
N
sing
N
406
N
sing
Y
407
N
sing
Y
408
N
doub
N
409
N
sing
Y
410
N
doub
N
411
N
sing
Y
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
doub
N
423
N
sing
N
424
N
sing
N
425
N
sing
N
426
N
sing
Y
427
N
doub
Y
428
N
sing
Y
429
N
sing
N
430
N
sing
Y
431
N
doub
N
432
N
sing
Y
433
N
doub
N
434
N
sing
Y
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
doub
N
445
N
sing
N
446
N
sing
N
447
N
sing
N
448
N
doub
N
449
N
doub
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
sing
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
doub
N
470
N
sing
N
471
N
sing
N
472
N
sing
N
473
N
sing
N
474
N
sing
N
475
N
sing
N
476
N
sing
N
477
N
sing
N
478
N
sing
N
479
N
sing
N
480
N
doub
N
481
N
sing
N
482
N
sing
N
483
N
sing
N
484
N
sing
N
485
N
sing
N
486
N
sing
N
487
N
sing
N
488
N
sing
N
489
N
sing
N
490
N
sing
N
491
N
sing
UK
Protein Eng.
PRENE9
0859
0269-2139
16
229
240
10.1093/proeng/gzg020
12702803
The only active mutant of thymidylate synthase D169, a residue far from the
site of methyl transfer, demonstrates the exquisite nature of enzyme
specificity.
2003
US
Biochemistry
BICHAW
0033
0006-2960
37
13893
13901
10.1021/bi9810510
D221 in thymidylate synthase controls conformation change, and thereby opening of the imidazolidine
1998
US
Biochemistry
BICHAW
0033
0006-2960
29
6964
6977
Structure, multiple site binding, and segmental accommodation in thymidylate synthase on binding dUMP and an anti-folate
1990
10.2210/pdb1nce/pdb
pdb_00001nce
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
298.0
1
monochromater
IMAGE PLATE
1998-12-21
RIGAKU RAXIS II
graphite
SINGLE WAVELENGTH
M
x-ray
1
1.5418
1.0
1.5418
ROTATING ANODE
RIGAKU RU200
30547.721
Thymidylate synthase
2.1.1.45
D169C
2
man
polymer
308.182
2'-DEOXYURIDINE 5'-MONOPHOSPHATE
2
syn
non-polymer
477.469
10-PROPARGYL-5,8-DIDEAZAFOLIC ACID
2
syn
non-polymer
18.015
water
178
nat
water
TS, TSase
no
yes
(CXM)KQYLELMQKVLDEGTQKNDRTGTGTLSIFGHQMRFNLQDGFPLVTTKRCHLRSIIHELLWFLQGDTNIAYLHENN
VTIWDEWADENGDLGPVYGKQWRAWPTPDGRHIDQITTVLNQLKNDPDSRRIIVSAWNVGELDKMALAPCHAFFQFYVAD
GKLSCQLYQRSCCVFLGLPFNIASYALLVHMMAQQCDLEVGDFVWTGGDTHLYSNHMDQTHLQLSREPRPLPKLIIKRKP
ESIFDYRFEDFEIEGYDPHPGIKAPVAI
MKQYLELMQKVLDEGTQKNDRTGTGTLSIFGHQMRFNLQDGFPLVTTKRCHLRSIIHELLWFLQGDTNIAYLHENNVTIW
DEWADENGDLGPVYGKQWRAWPTPDGRHIDQITTVLNQLKNDPDSRRIIVSAWNVGELDKMALAPCHAFFQFYVADGKLS
CQLYQRSCCVFLGLPFNIASYALLVHMMAQQCDLEVGDFVWTGGDTHLYSNHMDQTHLQLSREPRPLPKLIIKRKPESIF
DYRFEDFEIEGYDPHPGIKAPVAI
A,B
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
,
Escherichia, Escherichia
, Escherichia coli
, O157:H7
Escherichia
sample
THYA OR B2827 OR Z4144 OR ECS3684
562,83334
Escherichia coli, Escherichia coli O157:H7
562
Escherichia coli
1
2.60
52.65
VAPOR DIFFUSION, HANGING DROP
9.1
potassium phosphate, EDTA, ammonium sulfate, DTT, pH 9.1, VAPOR DIFFUSION, HANGING DROP, temperature 298.0K
298.0
citation_author
database_2
struct_conn
struct_ref_seq_dif
struct_site
chem_comp_atom
chem_comp_bond
pdbx_initial_refinement_model
repository
Initial release
Version format compliance
Non-polymer description
Version format compliance
Database references
Database references
Derived calculations
Data collection
Refinement description
1
0
2002-12-25
1
1
2008-04-28
1
2
2011-07-13
1
3
2018-01-24
1
4
2021-10-27
1
5
2023-08-16
_citation_author.name
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_struct_conn.pdbx_leaving_atom_flag
_struct_ref_seq_dif.details
_struct_site.pdbx_auth_asym_id
_struct_site.pdbx_auth_comp_id
_struct_site.pdbx_auth_seq_id
E. coli thymidylate synthase D221(169)N complex with dUMP and CB3717
E. coli thymidylate synthase D221(169)N complex with FdUMP and CH2H4folate
wild-type E. coli TS in a complex with dUMP and CB3717
RCSB
Y
RCSB
2002-12-05
REL
UMP
2'-DEOXYURIDINE 5'-MONOPHOSPHATE
CB3
10-PROPARGYL-5,8-DIDEAZAFOLIC ACID
HOH
water
1KCE
PDB entry 1KCE with waters and ligands removed
PDB
experimental model
UMP
565
2
UMP
UMP
565
A
CB3
566
3
CB3
CB3
566
A
UMP
567
2
UMP
UMP
567
B
CB3
568
3
CB3
CB3
568
B
HOH
571
4
HOH
HOH
571
A
HOH
572
4
HOH
HOH
572
A
HOH
574
4
HOH
HOH
574
A
HOH
575
4
HOH
HOH
575
A
HOH
579
4
HOH
HOH
579
A
HOH
580
4
HOH
HOH
580
A
HOH
584
4
HOH
HOH
584
A
HOH
585
4
HOH
HOH
585
A
HOH
587
4
HOH
HOH
587
A
HOH
592
4
HOH
HOH
592
A
HOH
596
4
HOH
HOH
596
A
HOH
598
4
HOH
HOH
598
A
HOH
612
4
HOH
HOH
612
A
HOH
613
4
HOH
HOH
613
A
HOH
615
4
HOH
HOH
615
A
HOH
620
4
HOH
HOH
620
A
HOH
621
4
HOH
HOH
621
A
HOH
626
4
HOH
HOH
626
A
HOH
627
4
HOH
HOH
627
A
HOH
628
4
HOH
HOH
628
A
HOH
631
4
HOH
HOH
631
A
HOH
632
4
HOH
HOH
632
A
HOH
635
4
HOH
HOH
635
A
HOH
636
4
HOH
HOH
636
A
HOH
637
4
HOH
HOH
637
A
HOH
639
4
HOH
HOH
639
A
HOH
640
4
HOH
HOH
640
A
HOH
643
4
HOH
HOH
643
A
HOH
645
4
HOH
HOH
645
A
HOH
647
4
HOH
HOH
647
A
HOH
651
4
HOH
HOH
651
A
HOH
652
4
HOH
HOH
652
A
HOH
655
4
HOH
HOH
655
A
HOH
660
4
HOH
HOH
660
A
HOH
661
4
HOH
HOH
661
A
HOH
662
4
HOH
HOH
662
A
HOH
663
4
HOH
HOH
663
A
HOH
665
4
HOH
HOH
665
A
HOH
669
4
HOH
HOH
669
A
HOH
672
4
HOH
HOH
672
A
HOH
675
4
HOH
HOH
675
A
HOH
676
4
HOH
HOH
676
A
HOH
677
4
HOH
HOH
677
A
HOH
678
4
HOH
HOH
678
A
HOH
681
4
HOH
HOH
681
A
HOH
683
4
HOH
HOH
683
A
HOH
684
4
HOH
HOH
684
A
HOH
685
4
HOH
HOH
685
A
HOH
687
4
HOH
HOH
687
A
HOH
689
4
HOH
HOH
689
A
HOH
690
4
HOH
HOH
690
A
HOH
692
4
HOH
HOH
692
A
HOH
699
4
HOH
HOH
699
A
HOH
703
4
HOH
HOH
703
A
HOH
704
4
HOH
HOH
704
A
HOH
705
4
HOH
HOH
705
A
HOH
708
4
HOH
HOH
708
A
HOH
709
4
HOH
HOH
709
A
HOH
710
4
HOH
HOH
710
A
HOH
712
4
HOH
HOH
712
A
HOH
715
4
HOH
HOH
715
A
HOH
716
4
HOH
HOH
716
A
HOH
719
4
HOH
HOH
719
A
HOH
721
4
HOH
HOH
721
A
HOH
722
4
HOH
HOH
722
A
HOH
727
4
HOH
HOH
727
A
HOH
730
4
HOH
HOH
730
A
HOH
732
4
HOH
HOH
732
A
HOH
733
4
HOH
HOH
733
A
HOH
734
4
HOH
HOH
734
A
HOH
735
4
HOH
HOH
735
A
HOH
736
4
HOH
HOH
736
A
HOH
737
4
HOH
HOH
737
A
HOH
738
4
HOH
HOH
738
A
HOH
739
4
HOH
HOH
739
A
HOH
741
4
HOH
HOH
741
A
HOH
742
4
HOH
HOH
742
A
HOH
743
4
HOH
HOH
743
A
HOH
744
4
HOH
HOH
744
A
HOH
745
4
HOH
HOH
745
A
HOH
746
4
HOH
HOH
746
A
HOH
747
4
HOH
HOH
747
A
HOH
748
4
HOH
HOH
748
A
HOH
749
4
HOH
HOH
749
A
HOH
751
4
HOH
HOH
751
A
HOH
753
4
HOH
HOH
753
A
HOH
804
4
HOH
HOH
804
A
HOH
805
4
HOH
HOH
805
A
HOH
806
4
HOH
HOH
806
A
HOH
807
4
HOH
HOH
807
A
HOH
808
4
HOH
HOH
808
A
HOH
809
4
HOH
HOH
809
A
HOH
813
4
HOH
HOH
813
A
HOH
814
4
HOH
HOH
814
A
HOH
815
4
HOH
HOH
815
A
HOH
816
4
HOH
HOH
816
A
HOH
818
4
HOH
HOH
818
A
HOH
819
4
HOH
HOH
819
A
HOH
824
4
HOH
HOH
824
A
HOH
825
4
HOH
HOH
825
A
HOH
826
4
HOH
HOH
826
A
HOH
827
4
HOH
HOH
827
A
HOH
829
4
HOH
HOH
829
A
HOH
831
4
HOH
HOH
831
A
HOH
832
4
HOH
HOH
832
A
HOH
833
4
HOH
HOH
833
A
HOH
837
4
HOH
HOH
837
A
HOH
838
4
HOH
HOH
838
A
HOH
839
4
HOH
HOH
839
A
HOH
840
4
HOH
HOH
840
A
HOH
841
4
HOH
HOH
841
A
HOH
844
4
HOH
HOH
844
A
HOH
846
4
HOH
HOH
846
A
HOH
847
4
HOH
HOH
847
A
HOH
848
4
HOH
HOH
848
A
HOH
849
4
HOH
HOH
849
A
HOH
850
4
HOH
HOH
850
A
HOH
569
4
HOH
HOH
569
B
HOH
570
4
HOH
HOH
570
B
HOH
573
4
HOH
HOH
573
B
HOH
578
4
HOH
HOH
578
B
HOH
588
4
HOH
HOH
588
B
HOH
589
4
HOH
HOH
589
B
HOH
595
4
HOH
HOH
595
B
HOH
600
4
HOH
HOH
600
B
HOH
601
4
HOH
HOH
601
B
HOH
603
4
HOH
HOH
603
B
HOH
604
4
HOH
HOH
604
B
HOH
605
4
HOH
HOH
605
B
HOH
606
4
HOH
HOH
606
B
HOH
608
4
HOH
HOH
608
B
HOH
610
4
HOH
HOH
610
B
HOH
617
4
HOH
HOH
617
B
HOH
619
4
HOH
HOH
619
B
HOH
622
4
HOH
HOH
622
B
HOH
623
4
HOH
HOH
623
B
HOH
624
4
HOH
HOH
624
B
HOH
633
4
HOH
HOH
633
B
HOH
638
4
HOH
HOH
638
B
HOH
641
4
HOH
HOH
641
B
HOH
642
4
HOH
HOH
642
B
HOH
648
4
HOH
HOH
648
B
HOH
649
4
HOH
HOH
649
B
HOH
650
4
HOH
HOH
650
B
HOH
653
4
HOH
HOH
653
B
HOH
657
4
HOH
HOH
657
B
HOH
659
4
HOH
HOH
659
B
HOH
670
4
HOH
HOH
670
B
HOH
679
4
HOH
HOH
679
B
HOH
682
4
HOH
HOH
682
B
HOH
693
4
HOH
HOH
693
B
HOH
711
4
HOH
HOH
711
B
HOH
714
4
HOH
HOH
714
B
HOH
723
4
HOH
HOH
723
B
HOH
724
4
HOH
HOH
724
B
HOH
728
4
HOH
HOH
728
B
HOH
740
4
HOH
HOH
740
B
HOH
750
4
HOH
HOH
750
B
HOH
752
4
HOH
HOH
752
B
HOH
754
4
HOH
HOH
754
B
HOH
801
4
HOH
HOH
801
B
HOH
802
4
HOH
HOH
802
B
HOH
810
4
HOH
HOH
810
B
HOH
811
4
HOH
HOH
811
B
HOH
812
4
HOH
HOH
812
B
HOH
817
4
HOH
HOH
817
B
HOH
820
4
HOH
HOH
820
B
HOH
821
4
HOH
HOH
821
B
HOH
822
4
HOH
HOH
822
B
HOH
823
4
HOH
HOH
823
B
HOH
828
4
HOH
HOH
828
B
HOH
830
4
HOH
HOH
830
B
HOH
834
4
HOH
HOH
834
B
HOH
835
4
HOH
HOH
835
B
HOH
836
4
HOH
HOH
836
B
HOH
842
4
HOH
HOH
842
B
HOH
843
4
HOH
HOH
843
B
HOH
845
4
HOH
HOH
845
B
CXM
1
n
1
CXM
1
A
LYS
2
n
2
LYS
2
A
GLN
3
n
3
GLN
3
A
TYR
4
n
4
TYR
4
A
LEU
5
n
5
LEU
5
A
GLU
6
n
6
GLU
6
A
LEU
7
n
7
LEU
7
A
MET
8
n
8
MET
8
A
GLN
9
n
9
GLN
9
A
LYS
10
n
10
LYS
10
A
VAL
11
n
11
VAL
11
A
LEU
12
n
12
LEU
12
A
ASP
13
n
13
ASP
13
A
GLU
14
n
14
GLU
14
A
GLY
15
n
15
GLY
15
A
THR
16
n
16
THR
16
A
GLN
17
n
17
GLN
17
A
LYS
18
n
18
LYS
18
A
ASN
19
n
19
ASN
19
A
ASP
20
n
20
ASP
20
A
ARG
21
n
21
ARG
21
A
THR
22
n
22
THR
22
A
GLY
23
n
23
GLY
23
A
THR
24
n
24
THR
24
A
GLY
25
n
25
GLY
25
A
THR
26
n
26
THR
26
A
LEU
27
n
27
LEU
27
A
SER
28
n
28
SER
28
A
ILE
29
n
29
ILE
29
A
PHE
30
n
30
PHE
30
A
GLY
31
n
31
GLY
31
A
HIS
32
n
32
HIS
32
A
GLN
33
n
33
GLN
33
A
MET
34
n
34
MET
34
A
ARG
35
n
35
ARG
35
A
PHE
36
n
36
PHE
36
A
ASN
37
n
37
ASN
37
A
LEU
38
n
38
LEU
38
A
GLN
39
n
39
GLN
39
A
ASP
40
n
40
ASP
40
A
GLY
41
n
41
GLY
41
A
PHE
42
n
42
PHE
42
A
PRO
43
n
43
PRO
43
A
LEU
44
n
44
LEU
44
A
VAL
45
n
45
VAL
45
A
THR
46
n
46
THR
46
A
THR
47
n
47
THR
47
A
LYS
48
n
48
LYS
48
A
ARG
49
n
49
ARG
49
A
CYS
50
n
50
CYS
50
A
HIS
51
n
51
HIS
51
A
LEU
52
n
52
LEU
52
A
ARG
53
n
53
ARG
53
A
SER
54
n
54
SER
54
A
ILE
55
n
55
ILE
55
A
ILE
56
n
56
ILE
56
A
HIS
57
n
57
HIS
57
A
GLU
58
n
58
GLU
58
A
LEU
59
n
59
LEU
59
A
LEU
60
n
60
LEU
60
A
TRP
61
n
61
TRP
61
A
PHE
62
n
62
PHE
62
A
LEU
63
n
63
LEU
63
A
GLN
64
n
64
GLN
64
A
GLY
65
n
65
GLY
65
A
ASP
66
n
66
ASP
66
A
THR
67
n
67
THR
67
A
ASN
68
n
68
ASN
68
A
ILE
69
n
69
ILE
69
A
ALA
70
n
70
ALA
70
A
TYR
71
n
71
TYR
71
A
LEU
72
n
72
LEU
72
A
HIS
73
n
73
HIS
73
A
GLU
74
n
74
GLU
74
A
ASN
75
n
75
ASN
75
A
ASN
76
n
76
ASN
76
A
VAL
77
n
77
VAL
77
A
THR
78
n
78
THR
78
A
ILE
79
n
79
ILE
79
A
TRP
80
n
80
TRP
80
A
ASP
81
n
81
ASP
81
A
GLU
82
n
82
GLU
82
A
TRP
83
n
83
TRP
83
A
ALA
84
n
84
ALA
84
A
ASP
85
n
85
ASP
85
A
GLU
86
n
86
GLU
86
A
ASN
87
n
87
ASN
87
A
GLY
88
n
88
GLY
88
A
ASP
89
n
89
ASP
89
A
LEU
90
n
90
LEU
90
A
GLY
91
n
91
GLY
91
A
PRO
92
n
92
PRO
92
A
VAL
93
n
93
VAL
93
A
TYR
94
n
94
TYR
94
A
GLY
95
n
95
GLY
95
A
LYS
96
n
96
LYS
96
A
GLN
97
n
97
GLN
97
A
TRP
98
n
98
TRP
98
A
ARG
99
n
99
ARG
99
A
ALA
100
n
100
ALA
100
A
TRP
101
n
101
TRP
101
A
PRO
102
n
102
PRO
102
A
THR
103
n
103
THR
103
A
PRO
104
n
104
PRO
104
A
ASP
105
n
105
ASP
105
A
GLY
106
n
106
GLY
106
A
ARG
107
n
107
ARG
107
A
HIS
108
n
108
HIS
108
A
ILE
109
n
109
ILE
109
A
ASP
110
n
110
ASP
110
A
GLN
111
n
111
GLN
111
A
ILE
112
n
112
ILE
112
A
THR
113
n
113
THR
113
A
THR
114
n
114
THR
114
A
VAL
115
n
115
VAL
115
A
LEU
116
n
116
LEU
116
A
ASN
117
n
117
ASN
117
A
GLN
118
n
118
GLN
118
A
LEU
119
n
119
LEU
119
A
LYS
120
n
120
LYS
120
A
ASN
121
n
121
ASN
121
A
ASP
122
n
122
ASP
122
A
PRO
123
n
123
PRO
123
A
ASP
124
n
124
ASP
124
A
SER
125
n
125
SER
125
A
ARG
126
n
126
ARG
126
A
ARG
127
n
127
ARG
127
A
ILE
128
n
128
ILE
128
A
ILE
129
n
129
ILE
129
A
VAL
130
n
130
VAL
130
A
SER
131
n
131
SER
131
A
ALA
132
n
132
ALA
132
A
TRP
133
n
133
TRP
133
A
ASN
134
n
134
ASN
134
A
VAL
135
n
135
VAL
135
A
GLY
136
n
136
GLY
136
A
GLU
137
n
137
GLU
137
A
LEU
138
n
138
LEU
138
A
ASP
139
n
139
ASP
139
A
LYS
140
n
140
LYS
140
A
MET
141
n
141
MET
141
A
ALA
142
n
142
ALA
142
A
LEU
143
n
143
LEU
143
A
ALA
144
n
144
ALA
144
A
PRO
145
n
145
PRO
145
A
CYS
146
n
146
CYS
146
A
HIS
147
n
147
HIS
147
A
ALA
148
n
148
ALA
148
A
PHE
149
n
149
PHE
149
A
PHE
150
n
150
PHE
150
A
GLN
151
n
151
GLN
151
A
PHE
152
n
152
PHE
152
A
TYR
153
n
153
TYR
153
A
VAL
154
n
154
VAL
154
A
ALA
155
n
155
ALA
155
A
ASP
156
n
156
ASP
156
A
GLY
157
n
157
GLY
157
A
LYS
158
n
158
LYS
158
A
LEU
159
n
159
LEU
159
A
SER
160
n
160
SER
160
A
CYS
161
n
161
CYS
161
A
GLN
162
n
162
GLN
162
A
LEU
163
n
163
LEU
163
A
TYR
164
n
164
TYR
164
A
GLN
165
n
165
GLN
165
A
ARG
166
n
166
ARG
166
A
SER
167
n
167
SER
167
A
CYS
168
n
168
CYS
168
A
CYS
169
n
169
CYS
169
A
VAL
170
n
170
VAL
170
A
PHE
171
n
171
PHE
171
A
LEU
172
n
172
LEU
172
A
GLY
173
n
173
GLY
173
A
LEU
174
n
174
LEU
174
A
PRO
175
n
175
PRO
175
A
PHE
176
n
176
PHE
176
A
ASN
177
n
177
ASN
177
A
ILE
178
n
178
ILE
178
A
ALA
179
n
179
ALA
179
A
SER
180
n
180
SER
180
A
TYR
181
n
181
TYR
181
A
ALA
182
n
182
ALA
182
A
LEU
183
n
183
LEU
183
A
LEU
184
n
184
LEU
184
A
VAL
185
n
185
VAL
185
A
HIS
186
n
186
HIS
186
A
MET
187
n
187
MET
187
A
MET
188
n
188
MET
188
A
ALA
189
n
189
ALA
189
A
GLN
190
n
190
GLN
190
A
GLN
191
n
191
GLN
191
A
CYS
192
n
192
CYS
192
A
ASP
193
n
193
ASP
193
A
LEU
194
n
194
LEU
194
A
GLU
195
n
195
GLU
195
A
VAL
196
n
196
VAL
196
A
GLY
197
n
197
GLY
197
A
ASP
198
n
198
ASP
198
A
PHE
199
n
199
PHE
199
A
VAL
200
n
200
VAL
200
A
TRP
201
n
201
TRP
201
A
THR
202
n
202
THR
202
A
GLY
203
n
203
GLY
203
A
GLY
204
n
204
GLY
204
A
ASP
205
n
205
ASP
205
A
THR
206
n
206
THR
206
A
HIS
207
n
207
HIS
207
A
LEU
208
n
208
LEU
208
A
TYR
209
n
209
TYR
209
A
SER
210
n
210
SER
210
A
ASN
211
n
211
ASN
211
A
HIS
212
n
212
HIS
212
A
MET
213
n
213
MET
213
A
ASP
214
n
214
ASP
214
A
GLN
215
n
215
GLN
215
A
THR
216
n
216
THR
216
A
HIS
217
n
217
HIS
217
A
LEU
218
n
218
LEU
218
A
GLN
219
n
219
GLN
219
A
LEU
220
n
220
LEU
220
A
SER
221
n
221
SER
221
A
ARG
222
n
222
ARG
222
A
GLU
223
n
223
GLU
223
A
PRO
224
n
224
PRO
224
A
ARG
225
n
225
ARG
225
A
PRO
226
n
226
PRO
226
A
LEU
227
n
227
LEU
227
A
PRO
228
n
228
PRO
228
A
LYS
229
n
229
LYS
229
A
LEU
230
n
230
LEU
230
A
ILE
231
n
231
ILE
231
A
ILE
232
n
232
ILE
232
A
LYS
233
n
233
LYS
233
A
ARG
234
n
234
ARG
234
A
LYS
235
n
235
LYS
235
A
PRO
236
n
236
PRO
236
A
GLU
237
n
237
GLU
237
A
SER
238
n
238
SER
238
A
ILE
239
n
239
ILE
239
A
PHE
240
n
240
PHE
240
A
ASP
241
n
241
ASP
241
A
TYR
242
n
242
TYR
242
A
ARG
243
n
243
ARG
243
A
PHE
244
n
244
PHE
244
A
GLU
245
n
245
GLU
245
A
ASP
246
n
246
ASP
246
A
PHE
247
n
247
PHE
247
A
GLU
248
n
248
GLU
248
A
ILE
249
n
249
ILE
249
A
GLU
250
n
250
GLU
250
A
GLY
251
n
251
GLY
251
A
TYR
252
n
252
TYR
252
A
ASP
253
n
253
ASP
253
A
PRO
254
n
254
PRO
254
A
HIS
255
n
255
HIS
255
A
PRO
256
n
256
PRO
256
A
GLY
257
n
257
GLY
257
A
ILE
258
n
258
ILE
258
A
LYS
259
n
259
LYS
259
A
ALA
260
n
260
ALA
260
A
PRO
261
n
261
PRO
261
A
VAL
262
n
262
VAL
262
A
ALA
263
n
263
ALA
263
A
ILE
264
n
264
ILE
264
A
CXM
1
n
1
CXM
1
B
LYS
2
n
2
LYS
2
B
GLN
3
n
3
GLN
3
B
TYR
4
n
4
TYR
4
B
LEU
5
n
5
LEU
5
B
GLU
6
n
6
GLU
6
B
LEU
7
n
7
LEU
7
B
MET
8
n
8
MET
8
B
GLN
9
n
9
GLN
9
B
LYS
10
n
10
LYS
10
B
VAL
11
n
11
VAL
11
B
LEU
12
n
12
LEU
12
B
ASP
13
n
13
ASP
13
B
GLU
14
n
14
GLU
14
B
GLY
15
n
15
GLY
15
B
THR
16
n
16
THR
16
B
GLN
17
n
17
GLN
17
B
LYS
18
n
18
LYS
18
B
ASN
19
n
19
ASN
19
B
ASP
20
n
20
ASP
20
B
ARG
21
n
21
ARG
21
B
THR
22
n
22
THR
22
B
GLY
23
n
23
GLY
23
B
THR
24
n
24
THR
24
B
GLY
25
n
25
GLY
25
B
THR
26
n
26
THR
26
B
LEU
27
n
27
LEU
27
B
SER
28
n
28
SER
28
B
ILE
29
n
29
ILE
29
B
PHE
30
n
30
PHE
30
B
GLY
31
n
31
GLY
31
B
HIS
32
n
32
HIS
32
B
GLN
33
n
33
GLN
33
B
MET
34
n
34
MET
34
B
ARG
35
n
35
ARG
35
B
PHE
36
n
36
PHE
36
B
ASN
37
n
37
ASN
37
B
LEU
38
n
38
LEU
38
B
GLN
39
n
39
GLN
39
B
ASP
40
n
40
ASP
40
B
GLY
41
n
41
GLY
41
B
PHE
42
n
42
PHE
42
B
PRO
43
n
43
PRO
43
B
LEU
44
n
44
LEU
44
B
VAL
45
n
45
VAL
45
B
THR
46
n
46
THR
46
B
THR
47
n
47
THR
47
B
LYS
48
n
48
LYS
48
B
ARG
49
n
49
ARG
49
B
CYS
50
n
50
CYS
50
B
HIS
51
n
51
HIS
51
B
LEU
52
n
52
LEU
52
B
ARG
53
n
53
ARG
53
B
SER
54
n
54
SER
54
B
ILE
55
n
55
ILE
55
B
ILE
56
n
56
ILE
56
B
HIS
57
n
57
HIS
57
B
GLU
58
n
58
GLU
58
B
LEU
59
n
59
LEU
59
B
LEU
60
n
60
LEU
60
B
TRP
61
n
61
TRP
61
B
PHE
62
n
62
PHE
62
B
LEU
63
n
63
LEU
63
B
GLN
64
n
64
GLN
64
B
GLY
65
n
65
GLY
65
B
ASP
66
n
66
ASP
66
B
THR
67
n
67
THR
67
B
ASN
68
n
68
ASN
68
B
ILE
69
n
69
ILE
69
B
ALA
70
n
70
ALA
70
B
TYR
71
n
71
TYR
71
B
LEU
72
n
72
LEU
72
B
HIS
73
n
73
HIS
73
B
GLU
74
n
74
GLU
74
B
ASN
75
n
75
ASN
75
B
ASN
76
n
76
ASN
76
B
VAL
77
n
77
VAL
77
B
THR
78
n
78
THR
78
B
ILE
79
n
79
ILE
79
B
TRP
80
n
80
TRP
80
B
ASP
81
n
81
ASP
81
B
GLU
82
n
82
GLU
82
B
TRP
83
n
83
TRP
83
B
ALA
84
n
84
ALA
84
B
ASP
85
n
85
ASP
85
B
GLU
86
n
86
GLU
86
B
ASN
87
n
87
ASN
87
B
GLY
88
n
88
GLY
88
B
ASP
89
n
89
ASP
89
B
LEU
90
n
90
LEU
90
B
GLY
91
n
91
GLY
91
B
PRO
92
n
92
PRO
92
B
VAL
93
n
93
VAL
93
B
TYR
94
n
94
TYR
94
B
GLY
95
n
95
GLY
95
B
LYS
96
n
96
LYS
96
B
GLN
97
n
97
GLN
97
B
TRP
98
n
98
TRP
98
B
ARG
99
n
99
ARG
99
B
ALA
100
n
100
ALA
100
B
TRP
101
n
101
TRP
101
B
PRO
102
n
102
PRO
102
B
THR
103
n
103
THR
103
B
PRO
104
n
104
PRO
104
B
ASP
105
n
105
ASP
105
B
GLY
106
n
106
GLY
106
B
ARG
107
n
107
ARG
107
B
HIS
108
n
108
HIS
108
B
ILE
109
n
109
ILE
109
B
ASP
110
n
110
ASP
110
B
GLN
111
n
111
GLN
111
B
ILE
112
n
112
ILE
112
B
THR
113
n
113
THR
113
B
THR
114
n
114
THR
114
B
VAL
115
n
115
VAL
115
B
LEU
116
n
116
LEU
116
B
ASN
117
n
117
ASN
117
B
GLN
118
n
118
GLN
118
B
LEU
119
n
119
LEU
119
B
LYS
120
n
120
LYS
120
B
ASN
121
n
121
ASN
121
B
ASP
122
n
122
ASP
122
B
PRO
123
n
123
PRO
123
B
ASP
124
n
124
ASP
124
B
SER
125
n
125
SER
125
B
ARG
126
n
126
ARG
126
B
ARG
127
n
127
ARG
127
B
ILE
128
n
128
ILE
128
B
ILE
129
n
129
ILE
129
B
VAL
130
n
130
VAL
130
B
SER
131
n
131
SER
131
B
ALA
132
n
132
ALA
132
B
TRP
133
n
133
TRP
133
B
ASN
134
n
134
ASN
134
B
VAL
135
n
135
VAL
135
B
GLY
136
n
136
GLY
136
B
GLU
137
n
137
GLU
137
B
LEU
138
n
138
LEU
138
B
ASP
139
n
139
ASP
139
B
LYS
140
n
140
LYS
140
B
MET
141
n
141
MET
141
B
ALA
142
n
142
ALA
142
B
LEU
143
n
143
LEU
143
B
ALA
144
n
144
ALA
144
B
PRO
145
n
145
PRO
145
B
CYS
146
n
146
CYS
146
B
HIS
147
n
147
HIS
147
B
ALA
148
n
148
ALA
148
B
PHE
149
n
149
PHE
149
B
PHE
150
n
150
PHE
150
B
GLN
151
n
151
GLN
151
B
PHE
152
n
152
PHE
152
B
TYR
153
n
153
TYR
153
B
VAL
154
n
154
VAL
154
B
ALA
155
n
155
ALA
155
B
ASP
156
n
156
ASP
156
B
GLY
157
n
157
GLY
157
B
LYS
158
n
158
LYS
158
B
LEU
159
n
159
LEU
159
B
SER
160
n
160
SER
160
B
CYS
161
n
161
CYS
161
B
GLN
162
n
162
GLN
162
B
LEU
163
n
163
LEU
163
B
TYR
164
n
164
TYR
164
B
GLN
165
n
165
GLN
165
B
ARG
166
n
166
ARG
166
B
SER
167
n
167
SER
167
B
CYS
168
n
168
CYS
168
B
CYS
169
n
169
CYS
169
B
VAL
170
n
170
VAL
170
B
PHE
171
n
171
PHE
171
B
LEU
172
n
172
LEU
172
B
GLY
173
n
173
GLY
173
B
LEU
174
n
174
LEU
174
B
PRO
175
n
175
PRO
175
B
PHE
176
n
176
PHE
176
B
ASN
177
n
177
ASN
177
B
ILE
178
n
178
ILE
178
B
ALA
179
n
179
ALA
179
B
SER
180
n
180
SER
180
B
TYR
181
n
181
TYR
181
B
ALA
182
n
182
ALA
182
B
LEU
183
n
183
LEU
183
B
LEU
184
n
184
LEU
184
B
VAL
185
n
185
VAL
185
B
HIS
186
n
186
HIS
186
B
MET
187
n
187
MET
187
B
MET
188
n
188
MET
188
B
ALA
189
n
189
ALA
189
B
GLN
190
n
190
GLN
190
B
GLN
191
n
191
GLN
191
B
CYS
192
n
192
CYS
192
B
ASP
193
n
193
ASP
193
B
LEU
194
n
194
LEU
194
B
GLU
195
n
195
GLU
195
B
VAL
196
n
196
VAL
196
B
GLY
197
n
197
GLY
197
B
ASP
198
n
198
ASP
198
B
PHE
199
n
199
PHE
199
B
VAL
200
n
200
VAL
200
B
TRP
201
n
201
TRP
201
B
THR
202
n
202
THR
202
B
GLY
203
n
203
GLY
203
B
GLY
204
n
204
GLY
204
B
ASP
205
n
205
ASP
205
B
THR
206
n
206
THR
206
B
HIS
207
n
207
HIS
207
B
LEU
208
n
208
LEU
208
B
TYR
209
n
209
TYR
209
B
SER
210
n
210
SER
210
B
ASN
211
n
211
ASN
211
B
HIS
212
n
212
HIS
212
B
MET
213
n
213
MET
213
B
ASP
214
n
214
ASP
214
B
GLN
215
n
215
GLN
215
B
THR
216
n
216
THR
216
B
HIS
217
n
217
HIS
217
B
LEU
218
n
218
LEU
218
B
GLN
219
n
219
GLN
219
B
LEU
220
n
220
LEU
220
B
SER
221
n
221
SER
221
B
ARG
222
n
222
ARG
222
B
GLU
223
n
223
GLU
223
B
PRO
224
n
224
PRO
224
B
ARG
225
n
225
ARG
225
B
PRO
226
n
226
PRO
226
B
LEU
227
n
227
LEU
227
B
PRO
228
n
228
PRO
228
B
LYS
229
n
229
LYS
229
B
LEU
230
n
230
LEU
230
B
ILE
231
n
231
ILE
231
B
ILE
232
n
232
ILE
232
B
LYS
233
n
233
LYS
233
B
ARG
234
n
234
ARG
234
B
LYS
235
n
235
LYS
235
B
PRO
236
n
236
PRO
236
B
GLU
237
n
237
GLU
237
B
SER
238
n
238
SER
238
B
ILE
239
n
239
ILE
239
B
PHE
240
n
240
PHE
240
B
ASP
241
n
241
ASP
241
B
TYR
242
n
242
TYR
242
B
ARG
243
n
243
ARG
243
B
PHE
244
n
244
PHE
244
B
GLU
245
n
245
GLU
245
B
ASP
246
n
246
ASP
246
B
PHE
247
n
247
PHE
247
B
GLU
248
n
248
GLU
248
B
ILE
249
n
249
ILE
249
B
GLU
250
n
250
GLU
250
B
GLY
251
n
251
GLY
251
B
TYR
252
n
252
TYR
252
B
ASP
253
n
253
ASP
253
B
PRO
254
n
254
PRO
254
B
HIS
255
n
255
HIS
255
B
PRO
256
n
256
PRO
256
B
GLY
257
n
257
GLY
257
B
ILE
258
n
258
ILE
258
B
LYS
259
n
259
LYS
259
B
ALA
260
n
260
ALA
260
B
PRO
261
n
261
PRO
261
B
VAL
262
n
262
VAL
262
B
ALA
263
n
263
ALA
263
B
ILE
264
n
264
ILE
264
B
author_and_software_defined_assembly
PISA
2
dimeric
7950
-19
19290
A
CXM
1
N-CARBOXYMETHIONINE
A
CXM
1
MET
B
CXM
1
N-CARBOXYMETHIONINE
B
CXM
1
MET
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
16
A
N
THR
16
A
O
SER
28
A
O
SER
28
A
N
MET
34
A
N
MET
34
A
O
TRP
201
A
O
TRP
201
A
O
VAL
200
A
O
VAL
200
A
N
CYS
161
A
N
CYS
161
A
O
SER
160
A
O
SER
160
A
N
TYR
153
A
N
TYR
153
A
O
PHE
150
A
O
PHE
150
A
N
VAL
130
A
N
VAL
130
A
N
TRP
101
A
N
TRP
101
A
O
ILE
109
A
O
ILE
109
A
N
ILE
231
A
N
ILE
231
A
O
GLU
248
A
O
GLU
248
B
N
LYS
18
B
N
LYS
18
B
O
THR
26
B
O
THR
26
B
N
PHE
36
B
N
PHE
36
B
O
PHE
199
B
O
PHE
199
B
O
GLY
204
B
O
GLY
204
B
N
GLN
165
B
N
GLN
165
B
O
SER
160
B
O
SER
160
B
N
TYR
153
B
N
TYR
153
B
O
PHE
150
B
O
PHE
150
B
N
VAL
130
B
N
VAL
130
B
N
TRP
101
B
N
TRP
101
B
O
ILE
109
B
O
ILE
109
B
N
LYS
229
B
N
LYS
229
B
O
GLU
250
B
O
GLU
250
1
A
O
ILE
264
A
O
ILE
264
1
Y
1
B
O
ILE
264
B
O
ILE
264
1
Y
1
A
PRO
43
-66.32
63.88
1
A
ILE
79
-36.92
-32.66
1
A
TYR
94
-14.01
-71.72
1
A
ALA
100
-157.24
65.35
1
A
ASP
122
-149.02
58.29
1
B
ILE
69
-57.29
-7.87
1
B
THR
78
-73.05
-76.30
1
B
ILE
79
28.74
-58.44
1
B
TRP
83
-140.17
-3.47
1
B
ASP
85
-77.65
-167.45
1
B
ALA
155
-130.21
-84.24
1
B
ASP
156
-107.95
67.17
1
B
ASN
211
-80.72
33.94
1
B
ARG
234
179.67
139.94
1
B
ASP
253
-118.17
76.53
PROTEIN_REP.PARAM
PROTEIN.TOP
WATER_REP.PARAM
WATER.TOP
PARAMED.LIG
TOPO.DUMP
FORM.PARAM
TOPO.CB3
FORM.TOPO
34.2
-1.95
0.26
0.00
-1.95
0.00
3.90
0.246
0.006
0.187
0.1913
0.187
2.40
36.69
1694
24679
24679
6.9
100.0
RANDOM
1
RESTRAINED
THROUGHOUT
0.0
-3.0
FOURIER SYNTHESIS
PDB entry 1KCE with waters and ligands removed
Engh & Huber
FLAT MODEL
56.9659
0.334593
0.37
0.50
2.40
36.69
178
4588
110
0
4300
0.008
1.6
24.3
0.94
3.15
1.50
4.71
2.00
3.38
2.00
5.09
2.50
0.337
0.020
0.299
2.55
284
3779
6
7.0
100.0
2.4
40.0
1NCE
24679
24679
-3.0
-3.0
0.174
1
8.1
8.7
100
2.4
2.55
1.9
1
100
data reduction
DENZO
data scaling
SCALEPACK
refinement
CNS
phasing
CNS
Crystal structure of a ternary complex of E. coli thymidylate synthase D169C with dUMP and the antifolate CB3717
1
N
N
1
N
N
2
N
N
3
N
N
2
N
N
3
N
N
4
N
N
4
N
N
The biological assembly is a homodimer consisting of chains A and B
A
CXM
1
A
CXM
1
HELX_P
A
GLY
15
A
GLY
15
1
1
15
A
GLN
39
A
GLN
39
HELX_P
A
GLY
41
A
GLY
41
5
2
3
A
HIS
51
A
HIS
51
HELX_P
A
GLY
65
A
GLY
65
1
3
15
A
ILE
69
A
ILE
69
HELX_P
A
ASN
75
A
ASN
75
1
4
7
A
TRP
80
A
TRP
80
HELX_P
A
ALA
84
A
ALA
84
5
5
5
A
VAL
93
A
VAL
93
HELX_P
A
ALA
100
A
ALA
100
1
6
8
A
ASP
110
A
ASP
110
HELX_P
A
ASP
122
A
ASP
122
1
7
13
A
ASN
134
A
ASN
134
HELX_P
A
MET
141
A
MET
141
5
8
8
A
GLY
173
A
GLY
173
HELX_P
A
CYS
192
A
CYS
192
1
9
20
A
HIS
212
A
HIS
212
HELX_P
A
SER
221
A
SER
221
1
10
10
A
SER
238
A
SER
238
HELX_P
A
TYR
242
A
TYR
242
5
11
5
A
ARG
243
A
ARG
243
HELX_P
A
GLU
245
A
GLU
245
5
12
3
B
CXM
1
B
CXM
1
HELX_P
B
GLY
15
B
GLY
15
1
13
15
B
GLN
39
B
GLN
39
HELX_P
B
GLY
41
B
GLY
41
5
14
3
B
HIS
51
B
HIS
51
HELX_P
B
GLN
64
B
GLN
64
1
15
14
B
ILE
69
B
ILE
69
HELX_P
B
GLU
74
B
GLU
74
1
16
6
B
TRP
80
B
TRP
80
HELX_P
B
ALA
84
B
ALA
84
5
17
5
B
GLY
95
B
GLY
95
HELX_P
B
ALA
100
B
ALA
100
1
18
6
B
ASP
110
B
ASP
110
HELX_P
B
ASP
122
B
ASP
122
1
19
13
B
ASN
134
B
ASN
134
HELX_P
B
MET
141
B
MET
141
5
20
8
B
GLY
173
B
GLY
173
HELX_P
B
ASP
193
B
ASP
193
1
21
21
B
HIS
212
B
HIS
212
HELX_P
B
LEU
220
B
LEU
220
1
22
9
B
ARG
243
B
ARG
243
HELX_P
B
GLU
245
B
GLU
245
5
23
3
covale
1.367
both
A
CXM
1
A
C
CXM
1
1_555
A
LYS
2
A
N
LYS
2
1_555
covale
1.828
none
A
CYS
146
A
SG
CYS
146
1_555
A
UMP
565
C
C6
UMP
1_555
covale
1.369
both
B
CXM
1
B
C
CXM
1
1_555
B
LYS
2
B
N
LYS
2
1_555
BIOSYNTHETIC PROTEIN
beta-sheet interface, protein-dUMP-cofactor analog complex, asymmetric dimer, BIOSYNTHETIC PROTEIN
TYSY_ECOLI
UNP
1
1
P0A884
MKQYLELMQKVLDEGTQKNDRTGTGTLSIFGHQMRFNLQDGFPLVTTKRCHLRSIIHELLWFLQGDTNIAYLHENNVTIW
DEWADENGDLGPVYGKQWRAWPTPDGRHIDQITTVLNQLKNDPDSRRIIVSAWNVGELDKMALAPCHAFFQFYVADGKLS
CQLYQRSCDVFLGLPFNIASYALLVHMMAQQCDLEVGDFVWTGGDTHLYSNHMDQTHLQLSREPRPLPKLIIKRKPESIF
DYRFEDFEIEGYDPHPGIKAPVAI
1
264
1NCE
1
264
P0A884
A
1
1
264
1
264
1NCE
1
264
P0A884
B
1
1
264
1
MET
modified residue
CXM
1
1NCE
A
P0A884
UNP
1
1
1
ASP
engineered mutation
CYS
169
1NCE
A
P0A884
UNP
169
169
2
MET
modified residue
CXM
1
1NCE
B
P0A884
UNP
1
1
2
ASP
engineered mutation
CYS
169
1NCE
B
P0A884
UNP
169
169
6
2
2
6
2
2
anti-parallel
anti-parallel
parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
A
THR
16
A
THR
16
A
ASN
19
A
ASN
19
A
GLY
25
A
GLY
25
A
ASN
37
A
ASN
37
A
GLU
195
A
GLU
195
A
TYR
209
A
TYR
209
A
LYS
158
A
LYS
158
A
CYS
169
A
CYS
169
A
HIS
147
A
HIS
147
A
ALA
155
A
ALA
155
A
ILE
129
A
ILE
129
A
SER
131
A
SER
131
A
TRP
101
A
TRP
101
A
PRO
102
A
PRO
102
A
HIS
108
A
HIS
108
A
ILE
109
A
ILE
109
A
LYS
229
A
LYS
229
A
ILE
232
A
ILE
232
A
PHE
247
A
PHE
247
A
GLU
250
A
GLU
250
B
THR
16
B
THR
16
B
LYS
18
B
LYS
18
B
THR
26
B
THR
26
B
ASN
37
B
ASN
37
B
GLU
195
B
GLU
195
B
TYR
209
B
TYR
209
B
LYS
158
B
LYS
158
B
CYS
169
B
CYS
169
B
HIS
147
B
HIS
147
B
VAL
154
B
VAL
154
B
ILE
129
B
ILE
129
B
SER
131
B
SER
131
B
TRP
101
B
TRP
101
B
PRO
102
B
PRO
102
B
HIS
108
B
HIS
108
B
ILE
109
B
ILE
109
B
LYS
229
B
LYS
229
B
ILE
232
B
ILE
232
B
PHE
247
B
PHE
247
B
GLU
250
B
GLU
250
BINDING SITE FOR RESIDUE UMP A 565
A
UMP
565
Software
14
BINDING SITE FOR RESIDUE CB3 A 566
A
CB3
566
Software
17
BINDING SITE FOR RESIDUE UMP B 567
B
UMP
567
Software
15
BINDING SITE FOR RESIDUE CB3 B 568
B
CB3
568
Software
13
A
ARG
21
A
ARG
21
14
1_555
A
CYS
146
A
CYS
146
14
1_555
A
HIS
147
A
HIS
147
14
1_555
A
GLN
165
A
GLN
165
14
1_555
A
ARG
166
A
ARG
166
14
1_555
A
SER
167
A
SER
167
14
1_555
A
CYS
169
A
CYS
169
14
1_555
A
ASN
177
A
ASN
177
14
1_555
A
HIS
207
A
HIS
207
14
1_555
A
TYR
209
A
TYR
209
14
1_555
A
CB3
566
D
CB3
14
1_555
A
HOH
675
G
HOH
14
1_555
B
ARG
126
B
ARG
126
14
1_555
B
ARG
127
B
ARG
127
14
1_555
A
HIS
51
A
HIS
51
17
1_555
A
SER
54
A
SER
54
17
1_555
A
GLU
58
A
GLU
58
17
1_555
A
ILE
79
A
ILE
79
17
1_555
A
TRP
83
A
TRP
83
17
1_555
A
LEU
143
A
LEU
143
17
1_555
A
CYS
169
A
CYS
169
17
1_555
A
GLY
173
A
GLY
173
17
1_555
A
PHE
176
A
PHE
176
17
1_555
A
ASN
177
A
ASN
177
17
1_555
A
TYR
209
A
TYR
209
17
1_555
A
ALA
263
A
ALA
263
17
1_555
A
UMP
565
C
UMP
17
1_555
A
HOH
587
G
HOH
17
1_555
A
HOH
651
G
HOH
17
1_555
A
HOH
662
G
HOH
17
1_555
A
HOH
848
G
HOH
17
1_555
A
ARG
126
A
ARG
126
15
1_555
A
ARG
127
A
ARG
127
15
1_555
B
ARG
21
B
ARG
21
15
1_555
B
CYS
146
B
CYS
146
15
1_555
B
HIS
147
B
HIS
147
15
1_555
B
GLN
165
B
GLN
165
15
1_555
B
ARG
166
B
ARG
166
15
1_555
B
SER
167
B
SER
167
15
1_555
B
CYS
168
B
CYS
168
15
1_555
B
CYS
169
B
CYS
169
15
1_555
B
ASN
177
B
ASN
177
15
1_555
B
HIS
207
B
HIS
207
15
1_555
B
TYR
209
B
TYR
209
15
1_555
B
CB3
568
F
CB3
15
1_555
B
HOH
595
H
HOH
15
1_555
B
HIS
51
B
HIS
51
13
1_555
B
SER
54
B
SER
54
13
1_555
B
TRP
83
B
TRP
83
13
1_555
B
CYS
169
B
CYS
169
13
1_555
B
LEU
172
B
LEU
172
13
1_555
B
GLY
173
B
GLY
173
13
1_555
B
PHE
176
B
PHE
176
13
1_555
B
ASN
177
B
ASN
177
13
1_555
B
TYR
209
B
TYR
209
13
1_555
B
ALA
263
B
ALA
263
13
1_555
B
UMP
567
E
UMP
13
1_555
B
HOH
649
H
HOH
13
1_555
B
HOH
835
H
HOH
13
1_555
173
P 63