0.007949
0.004589
0.000000
0.000000
0.009179
0.000000
0.000000
0.000000
0.014911
0.00000
0.00000
0.00000
Sayre, P.H.
Finer-Moore, J.S.
Fritz, T.A.
Biermann, D.
Gates, S.B.
MacKellar, W.C.
Patel, V.F.
Stroud, R.M.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
12
90.00
90.00
120.00
125.800
125.800
67.063
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
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
C20 H23 N5 O4
397.428
2-{4-[2-(2-AMINO-4-OXO-4,7-DIHYDRO-3H-PYRROLO[2,3-D]PYRIMIDIN-5-YL)-ETHYL]-BENZOYLAMINO}-3-METHYL-BUTYRIC ACID
LY338529
non-polymer
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
N
74
N
N
N
75
S
C
N
76
N
C
N
77
N
C
N
78
N
S
N
79
N
C
N
80
N
C
N
81
N
O
N
82
N
C
N
83
N
O
N
84
N
O
N
85
N
O
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
H
N
95
N
H
N
96
N
H
N
97
N
N
N
98
R
C
N
99
N
C
N
100
N
O
N
101
N
C
N
102
N
S
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
N
N
112
S
C
N
113
N
C
N
114
N
O
N
115
N
C
N
116
N
C
N
117
N
C
N
118
N
O
N
119
N
N
N
120
N
O
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
N
N
132
S
C
N
133
N
C
N
134
N
O
N
135
N
C
N
136
N
C
N
137
N
C
N
138
N
O
N
139
N
O
N
140
N
O
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
N
N
151
N
C
N
152
N
C
N
153
N
O
N
154
N
O
N
155
N
H
N
156
N
H
N
157
N
H
N
158
N
H
N
159
N
H
N
160
N
N
N
161
S
C
N
162
N
C
N
163
N
O
N
164
N
C
Y
165
N
C
Y
166
N
N
Y
167
N
C
Y
168
N
C
Y
169
N
N
N
170
N
O
N
171
N
H
N
172
N
H
N
173
N
H
N
174
N
H
N
175
N
H
N
176
N
H
N
177
N
H
N
178
N
H
N
179
N
H
N
180
N
H
N
181
N
O
N
182
N
H
N
183
N
H
N
184
N
N
N
185
S
C
N
186
N
C
N
187
N
O
N
188
S
C
N
189
N
C
N
190
N
C
N
191
N
C
N
192
N
O
N
193
N
H
N
194
N
H
N
195
N
H
N
196
N
H
N
197
N
H
N
198
N
H
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
N
N
207
S
C
N
208
N
C
N
209
N
O
N
210
N
C
N
211
N
C
N
212
N
C
N
213
N
C
N
214
N
O
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
H
N
223
N
H
N
224
N
H
N
225
N
H
N
226
N
H
N
227
N
H
Y
228
N
C
Y
229
N
C
Y
230
N
C
Y
231
N
C
Y
232
N
C
Y
233
N
C
N
234
N
C
N
235
N
O
N
236
N
N
N
237
S
C
N
238
N
C
N
239
N
C
N
240
N
C
N
241
N
C
N
242
N
C
Y
243
N
C
N
244
N
C
N
245
N
O
N
246
N
O
Y
247
N
C
Y
248
N
N
Y
249
N
C
Y
250
N
C
Y
251
N
C
N
252
N
O
Y
253
N
N
Y
254
N
C
Y
255
N
N
N
256
N
N
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
H
N
265
N
H
N
266
N
H
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
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
C
N
288
N
N
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
H
N
300
N
H
N
301
N
H
N
302
N
H
N
303
N
H
N
304
N
H
N
305
N
N
N
306
S
C
N
307
N
C
N
308
N
O
N
309
N
C
N
310
N
C
N
311
N
S
N
312
N
C
N
313
N
O
N
314
N
H
N
315
N
H
N
316
N
H
N
317
N
H
N
318
N
H
N
319
N
H
N
320
N
H
N
321
N
H
N
322
N
H
N
323
N
H
N
324
N
H
N
325
N
N
N
326
S
C
N
327
N
C
N
328
N
O
N
329
N
C
Y
330
N
C
Y
331
N
C
Y
332
N
C
Y
333
N
C
Y
334
N
C
Y
335
N
C
N
336
N
O
N
337
N
H
N
338
N
H
N
339
N
H
N
340
N
H
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
N
N
349
S
C
N
350
N
C
N
351
N
O
N
352
N
C
N
353
N
C
N
354
N
C
N
355
N
O
N
356
N
H
N
357
N
H
N
358
N
H
N
359
N
H
N
360
N
H
N
361
N
H
N
362
N
H
N
363
N
H
N
364
N
H
N
365
N
N
N
366
S
C
N
367
N
C
N
368
N
O
N
369
N
C
N
370
N
O
N
371
N
O
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
H
N
379
N
N
N
380
S
C
N
381
N
C
N
382
N
O
N
383
R
C
N
384
N
O
N
385
N
C
N
386
N
O
N
387
N
H
N
388
N
H
N
389
N
H
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
N
N
397
S
C
N
398
N
C
N
399
N
O
N
400
N
C
Y
401
N
C
Y
402
N
C
Y
403
N
C
Y
404
N
N
Y
405
N
C
Y
406
N
C
Y
407
N
C
Y
408
N
C
Y
409
N
C
N
410
N
O
N
411
N
H
N
412
N
H
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
N
N
424
S
C
N
425
N
C
N
426
N
O
N
427
N
C
Y
428
N
C
Y
429
N
C
Y
430
N
C
Y
431
N
C
Y
432
N
C
Y
433
N
C
N
434
N
O
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
N
N
448
N
C
N
449
N
N
N
450
N
C
N
451
N
C
N
452
N
C
N
453
N
O
N
454
N
O
N
455
R
C
N
456
N
C
N
457
S
C
N
458
R
C
N
459
N
O
N
460
N
O
N
461
N
C
N
462
N
O
N
463
N
P
N
464
N
O
N
465
N
O
N
466
N
O
N
467
N
H
N
468
N
H
N
469
N
H
N
470
N
H
N
471
N
H
N
472
N
H
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
N
N
481
S
C
N
482
N
C
N
483
N
O
N
484
N
C
N
485
N
C
N
486
N
C
N
487
N
O
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
H
N
496
N
H
N
497
N
H
N
498
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
sing
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
sing
N
85
N
sing
N
86
N
doub
N
87
N
sing
N
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
N
95
N
sing
N
96
N
sing
N
97
N
sing
N
98
N
doub
N
99
N
sing
N
100
N
sing
N
101
N
sing
N
102
N
sing
N
103
N
sing
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
doub
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
sing
N
123
N
sing
N
124
N
sing
N
125
N
sing
N
126
N
sing
N
127
N
sing
N
128
N
sing
N
129
N
sing
N
130
N
doub
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
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
doub
N
158
N
sing
N
159
N
sing
N
160
N
sing
N
161
N
sing
Y
162
N
sing
Y
163
N
doub
Y
164
N
doub
N
165
N
sing
Y
166
N
sing
N
167
N
sing
Y
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
doub
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
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
doub
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
Y
216
N
doub
Y
217
N
sing
N
218
N
sing
Y
219
N
sing
N
220
N
sing
Y
221
N
doub
N
222
N
sing
Y
223
N
sing
N
224
N
sing
Y
225
N
doub
N
226
N
sing
N
227
N
sing
N
228
N
doub
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
Y
250
N
doub
Y
251
N
sing
N
252
N
doub
N
253
N
sing
N
254
N
sing
Y
255
N
sing
N
256
N
sing
Y
257
N
sing
N
258
N
sing
Y
259
N
doub
Y
260
N
sing
Y
261
N
sing
N
262
N
doub
Y
263
N
sing
Y
264
N
sing
N
265
N
sing
Y
266
N
doub
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
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
doub
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
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
doub
N
320
N
sing
N
321
N
sing
N
322
N
sing
N
323
N
sing
Y
324
N
doub
Y
325
N
sing
Y
326
N
sing
N
327
N
sing
Y
328
N
doub
N
329
N
sing
Y
330
N
doub
N
331
N
sing
Y
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
doub
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
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
doub
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
sing
N
368
N
sing
N
369
N
sing
N
370
N
sing
N
371
N
sing
N
372
N
doub
N
373
N
sing
N
374
N
sing
N
375
N
sing
N
376
N
sing
N
377
N
sing
N
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
doub
N
389
N
sing
N
390
N
sing
N
391
N
sing
N
392
N
sing
Y
393
N
doub
Y
394
N
sing
Y
395
N
sing
N
396
N
sing
Y
397
N
doub
Y
398
N
sing
Y
399
N
sing
N
400
N
sing
Y
401
N
sing
Y
402
N
doub
N
403
N
sing
Y
404
N
doub
N
405
N
sing
Y
406
N
sing
N
407
N
sing
N
408
N
sing
N
409
N
sing
N
410
N
sing
N
411
N
sing
N
412
N
sing
N
413
N
sing
N
414
N
sing
N
415
N
sing
N
416
N
doub
N
417
N
sing
N
418
N
sing
N
419
N
sing
N
420
N
sing
Y
421
N
doub
Y
422
N
sing
Y
423
N
sing
N
424
N
sing
Y
425
N
doub
N
426
N
sing
Y
427
N
doub
N
428
N
sing
Y
429
N
sing
N
430
N
sing
N
431
N
sing
N
432
N
sing
N
433
N
sing
N
434
N
sing
N
435
N
sing
N
436
N
sing
N
437
N
sing
N
438
N
doub
N
439
N
sing
N
440
N
sing
N
441
N
sing
N
442
N
doub
N
443
N
doub
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
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
doub
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
doub
N
475
N
sing
N
476
N
sing
N
477
N
sing
N
478
N
sing
N
479
N
sing
N
480
N
sing
N
481
N
sing
N
482
N
sing
N
483
N
sing
N
484
N
sing
N
485
N
sing
UK
J.Mol.Biol.
JMOBAK
0070
0022-2836
313
813
829
10.1006/jmbi.2001.5074
11697906
Multi-targeted antifolates aimed at avoiding drug resistance form covalent closed inhibitory complexes with human and Escherichia coli thymidylate synthases.
2001
10.2210/pdb1jut/pdb
pdb_00001jut
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
296
1
IMAGE PLATE
1998-04-28
RIGAKU RAXIS IV
graphite
SINGLE WAVELENGTH
M
x-ray
1
1.54178
1.0
1.54178
ROTATING ANODE
RIGAKU
30559.666
THYMIDYLATE SYNTHASE
2.1.1.45
2
man
polymer
308.182
2'-DEOXYURIDINE 5'-MONOPHOSPHATE
2
syn
non-polymer
397.428
2-{4-[2-(2-AMINO-4-OXO-4,7-DIHYDRO-3H-PYRROLO[2,3-D]PYRIMIDIN-5-YL)-ETHYL]-BENZOYLAMINO}-3-METHYL-BUTYRIC ACID
2
syn
non-polymer
18.015
water
82
nat
water
TS
no
yes
(CXM)KQYLELMQKVLDEGTQKNDRTGTGTLSIFGHQMRFNLQDGFPLVTTKRCHLRSIIHELLWFLQGDTNIAYLHENN
VTIWDEWADENGDLGPVYGKQWRAWPTPDGRHIDQITTVLNQLKNDPDSRRIIVSAWNVGELDKMALAPCHAFFQFYVAD
GKLSCQLYQRSCDVFLGLPFNIASYALLVHMMAQQCDLEVGDFVWTGGDTHLYSNHMDQTHLQLSREPRPLPKLIIKRKP
ESIFDYRFEDFEIEGYDPHPGIKAPVAI
MKQYLELMQKVLDEGTQKNDRTGTGTLSIFGHQMRFNLQDGFPLVTTKRCHLRSIIHELLWFLQGDTNIAYLHENNVTIW
DEWADENGDLGPVYGKQWRAWPTPDGRHIDQITTVLNQLKNDPDSRRIIVSAWNVGELDKMALAPCHAFFQFYVADGKLS
CQLYQRSCDVFLGLPFNIASYALLVHMMAQQCDLEVGDFVWTGGDTHLYSNHMDQTHLQLSREPRPLPKLIIKRKPESIF
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
sample
THYA
562
Escherichia coli
562
Escherichia coli
X2913
plasmid
PTHYA-WT
1
2.51
50.92
VAPOR DIFFUSION, HANGING DROP
8
KPO4, MgCl2, DTT, EDTA, ammonium sulphate, pH 8, VAPOR DIFFUSION, HANGING DROP, temperature 296K
296
chem_comp_atom
chem_comp_bond
database_2
pdbx_initial_refinement_model
struct_conn
struct_ref_seq_dif
struct_site
repository
Initial release
Version format compliance
Non-polymer description
Version format compliance
Data collection
Database references
Derived calculations
Refinement description
1
0
2001-09-19
1
1
2008-04-27
1
2
2011-07-13
1
3
2023-08-16
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_struct_conn.pdbx_dist_value
_struct_conn.pdbx_leaving_atom_flag
_struct_conn.ptnr1_auth_comp_id
_struct_conn.ptnr1_auth_seq_id
_struct_conn.ptnr1_label_atom_id
_struct_conn.ptnr1_label_comp_id
_struct_conn.ptnr1_label_seq_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
E. coli TS bound to dUMP and LY341770
E. coli TS bound to dUMP and polyglutamylated LY231514
human TS bound to dUMP and LY231514
human thymidylate synthase bound to dUMP and LY231514,
a pyrrolo(2,3-d)pyrimidine-based antifolate
RCSB
Y
RCSB
2001-08-27
REL
REL
UMP
2'-DEOXYURIDINE 5'-MONOPHOSPHATE
LYD
2-{4-[2-(2-AMINO-4-OXO-4,7-DIHYDRO-3H-PYRROLO[2,3-D]PYRIMIDIN-5-YL)-ETHYL]-BENZOYLAMINO}-3-METHYL-BUTYRIC ACID
HOH
water
2KCE
PDB entry 2KCE
PDB
experimental model
UMP
302
2
UMP
UMP
302
A
LYC
303
3
LYD
LYD
303
A
UMP
304
2
UMP
UMP
304
B
LYC
305
3
LYD
LYD
305
B
WAT
406
4
HOH
HOH
406
A
WAT
409
4
HOH
HOH
409
A
WAT
410
4
HOH
HOH
410
A
WAT
413
4
HOH
HOH
413
A
WAT
415
4
HOH
HOH
415
A
WAT
417
4
HOH
HOH
417
A
WAT
418
4
HOH
HOH
418
A
WAT
419
4
HOH
HOH
419
A
WAT
422
4
HOH
HOH
422
A
WAT
423
4
HOH
HOH
423
A
WAT
425
4
HOH
HOH
425
A
WAT
426
4
HOH
HOH
426
A
WAT
428
4
HOH
HOH
428
A
WAT
429
4
HOH
HOH
429
A
WAT
430
4
HOH
HOH
430
A
WAT
431
4
HOH
HOH
431
A
WAT
432
4
HOH
HOH
432
A
WAT
433
4
HOH
HOH
433
A
WAT
434
4
HOH
HOH
434
A
WAT
435
4
HOH
HOH
435
A
WAT
436
4
HOH
HOH
436
A
WAT
437
4
HOH
HOH
437
A
WAT
438
4
HOH
HOH
438
A
WAT
439
4
HOH
HOH
439
A
WAT
440
4
HOH
HOH
440
A
WAT
441
4
HOH
HOH
441
A
WAT
442
4
HOH
HOH
442
A
WAT
443
4
HOH
HOH
443
A
WAT
444
4
HOH
HOH
444
A
WAT
445
4
HOH
HOH
445
A
WAT
446
4
HOH
HOH
446
A
WAT
447
4
HOH
HOH
447
A
WAT
448
4
HOH
HOH
448
A
WAT
449
4
HOH
HOH
449
A
WAT
450
4
HOH
HOH
450
A
WAT
451
4
HOH
HOH
451
A
WAT
452
4
HOH
HOH
452
A
WAT
453
4
HOH
HOH
453
A
WAT
454
4
HOH
HOH
454
A
WAT
455
4
HOH
HOH
455
A
WAT
456
4
HOH
HOH
456
A
WAT
457
4
HOH
HOH
457
A
WAT
458
4
HOH
HOH
458
A
WAT
464
4
HOH
HOH
464
A
WAT
473
4
HOH
HOH
473
A
WAT
474
4
HOH
HOH
474
A
WAT
475
4
HOH
HOH
475
A
WAT
477
4
HOH
HOH
477
A
WAT
480
4
HOH
HOH
480
A
WAT
401
4
HOH
HOH
401
B
WAT
402
4
HOH
HOH
402
B
WAT
403
4
HOH
HOH
403
B
WAT
404
4
HOH
HOH
404
B
WAT
405
4
HOH
HOH
405
B
WAT
407
4
HOH
HOH
407
B
WAT
408
4
HOH
HOH
408
B
WAT
411
4
HOH
HOH
411
B
WAT
412
4
HOH
HOH
412
B
WAT
414
4
HOH
HOH
414
B
WAT
416
4
HOH
HOH
416
B
WAT
420
4
HOH
HOH
420
B
WAT
421
4
HOH
HOH
421
B
WAT
424
4
HOH
HOH
424
B
WAT
427
4
HOH
HOH
427
B
WAT
459
4
HOH
HOH
459
B
WAT
460
4
HOH
HOH
460
B
WAT
461
4
HOH
HOH
461
B
WAT
462
4
HOH
HOH
462
B
WAT
463
4
HOH
HOH
463
B
WAT
465
4
HOH
HOH
465
B
WAT
466
4
HOH
HOH
466
B
WAT
467
4
HOH
HOH
467
B
WAT
468
4
HOH
HOH
468
B
WAT
469
4
HOH
HOH
469
B
WAT
470
4
HOH
HOH
470
B
WAT
471
4
HOH
HOH
471
B
WAT
472
4
HOH
HOH
472
B
WAT
476
4
HOH
HOH
476
B
WAT
478
4
HOH
HOH
478
B
WAT
479
4
HOH
HOH
479
B
WAT
481
4
HOH
HOH
481
B
WAT
482
4
HOH
HOH
482
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
ASP
169
n
169
ASP
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
ASP
169
n
169
ASP
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
7580
-14
19540
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
LYS
18
A
N
LYS
18
A
O
THR
26
A
O
THR
26
A
N
ILE
29
A
N
ILE
29
A
O
THR
206
A
O
THR
206
A
O
GLU
195
A
O
GLU
195
A
N
LEU
159
A
N
LEU
159
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
LYS
229
A
N
LYS
229
A
O
GLU
250
A
O
GLU
250
B
N
THR
16
B
N
THR
16
B
O
SER
28
B
O
SER
28
B
N
PHE
36
B
N
PHE
36
B
O
PHE
199
B
O
PHE
199
B
O
THR
202
B
O
THR
202
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
ILE
231
B
N
ILE
231
B
O
GLU
248
B
O
GLU
248
1
-16.21
2.70
111.00
94.79
A
A
A
N
CA
C
LEU
LEU
LEU
27
27
27
N
1
A
A
OD2
OE1
ASP
GLU
139
248
1.91
1_555
6_554
1
A
A
OD2
NZ
ASP
LYS
139
233
2.06
1_555
6_554
1
A
PRO
43
-68.99
60.67
1
A
TYR
94
-22.18
-64.16
1
A
ALA
100
-151.54
69.61
1
A
ASP
122
-159.52
54.42
1
B
LYS
48
-170.31
124.94
1
B
TYR
94
-15.20
-74.20
1
B
ALA
100
-150.71
65.47
1
B
ASP
122
-149.66
56.99
PROTEIN_REP.PARAM
PROTEIN.TOP
WATER_REP.PARAM
WATER.TOP
DUMP_LY338529.PARAM
DUMP_LY338529.TOPO
FORM.PARAM
FORM.TOPO
30.8
-0.67
-1.40
0.00
-0.67
0.00
1.34
0.25
0.007
0.218
0.22
2.70
29.59
1155
16719
16719
6.9
99.5
RANDOM
1797097.09
0.000000
1
RESTRAINED
THROUGHOUT
0.0
FOURIER SYNTHESIS
PDB entry 2KCE
Engh and Huber
FLAT MODEL
28.6405
0.365014
0.39
0.32
5.00
0.50
0.40
2.70
29.59
82
4486
98
0
4306
0.009
1.8
25.2
1.17
0.359
0.027
0.297
2.87
183
2571
6
6.6
99.4
44.9
2.7
30
1JUT
16866
16866
0
-3
0.163
1
8.0
5.8
100
0.6
2.7
2.8
1.9
1
99
data reduction
DENZO
data scaling
SCALEPACK
refinement
CNS
phasing
CNS
E. coli Thymidylate Synthase Bound to dUMP and LY338529, A Pyrrolo(2,3-d)pyrimidine-based Antifolate
1
N
N
1
N
N
2
N
N
3
N
N
2
N
N
3
N
N
4
N
N
4
N
N
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
GLN
64
A
GLN
64
1
3
14
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
GLU
137
A
GLU
137
HELX_P
A
MET
141
A
MET
141
5
8
5
A
LEU
172
A
LEU
172
HELX_P
A
CYS
192
A
CYS
192
1
9
21
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
ASN
75
B
ASN
75
1
16
7
B
TRP
80
B
TRP
80
HELX_P
B
ALA
84
B
ALA
84
5
17
5
B
VAL
93
B
VAL
93
HELX_P
B
ALA
100
B
ALA
100
1
18
8
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
LEU
172
B
LEU
172
HELX_P
B
CYS
192
B
CYS
192
1
21
21
B
HIS
212
B
HIS
212
HELX_P
B
SER
221
B
SER
221
1
22
10
B
ARG
243
B
ARG
243
HELX_P
B
GLU
245
B
GLU
245
5
23
3
covale
1.322
both
A
CXM
1
A
C
CXM
1
1_555
A
LYS
2
A
N
LYS
2
1_555
covale
1.595
none
A
CYS
146
A
SG
CYS
146
1_555
A
UMP
302
C
C6
UMP
1_555
covale
1.325
both
B
CXM
1
B
C
CXM
1
1_555
B
LYS
2
B
N
LYS
2
1_555
TRANSFERASE
antifolate, dTMP synthesis, cancer, drug resistance, TRANSFERASE
TYSY_ECOLI
UNP
1
1
P0A884
MKQYLELMQKVLDEGTQKNDRTGTGTLSIFGHQMRFNLQDGFPLVTTKRCHLRSIIHELLWFLQGDTNIAYLHENNVTIW
DEWADENGDLGPVYGKQWRAWPTPDGRHIDQITTVLNQLKNDPDSRRIIVSAWNVGELDKMALAPCHAFFQFYVADGKLS
CQLYQRSCDVFLGLPFNIASYALLVHMMAQQCDLEVGDFVWTGGDTHLYSNHMDQTHLQLSREPRPLPKLIIKRKPESIF
DYRFEDFEIEGYDPHPGIKAPVAI
1
264
1JUT
1
264
P0A884
A
1
1
264
1
264
1JUT
1
264
P0A884
B
1
1
264
1
MET
modified residue
CXM
1
1JUT
A
P0A884
UNP
1
1
2
MET
modified residue
CXM
1
1JUT
B
P0A884
UNP
1
1
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
LYS
18
A
LYS
18
A
THR
26
A
THR
26
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
ASP
169
A
ASP
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
ASP
169
B
ASP
169
B
HIS
147
B
HIS
147
B
ALA
155
B
ALA
155
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 302
A
UMP
302
Software
15
BINDING SITE FOR RESIDUE LYD A 303
A
LYD
303
Software
13
BINDING SITE FOR RESIDUE UMP B 304
B
UMP
304
Software
15
BINDING SITE FOR RESIDUE LYD B 305
B
LYD
305
Software
10
A
ARG
21
A
ARG
21
15
1_555
A
CYS
146
A
CYS
146
15
1_555
A
HIS
147
A
HIS
147
15
1_555
A
GLN
165
A
GLN
165
15
1_555
A
ARG
166
A
ARG
166
15
1_555
A
SER
167
A
SER
167
15
1_555
A
CYS
168
A
CYS
168
15
1_555
A
ASP
169
A
ASP
169
15
1_555
A
ASN
177
A
ASN
177
15
1_555
A
HIS
207
A
HIS
207
15
1_555
A
TYR
209
A
TYR
209
15
1_555
A
LYD
303
D
LYD
15
1_555
A
HOH
451
G
HOH
15
1_555
B
ARG
126
B
ARG
126
15
1_555
B
ARG
127
B
ARG
127
15
1_555
A
ILE
79
A
ILE
79
13
1_555
A
TRP
80
A
TRP
80
13
1_555
A
TRP
83
A
TRP
83
13
1_555
A
LEU
143
A
LEU
143
13
1_555
A
ASP
169
A
ASP
169
13
1_555
A
LEU
172
A
LEU
172
13
1_555
A
GLY
173
A
GLY
173
13
1_555
A
PHE
176
A
PHE
176
13
1_555
A
ALA
263
A
ALA
263
13
1_555
A
UMP
302
C
UMP
13
1_555
A
HOH
413
G
HOH
13
1_555
A
HOH
473
G
HOH
13
1_555
A
HOH
474
G
HOH
13
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
ASP
169
B
ASP
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
LYD
305
F
LYD
15
1_555
B
HOH
462
H
HOH
15
1_555
B
TRP
80
B
TRP
80
10
1_555
B
TRP
83
B
TRP
83
10
1_555
B
ASP
169
B
ASP
169
10
1_555
B
GLY
173
B
GLY
173
10
1_555
B
PHE
176
B
PHE
176
10
1_555
B
VAL
262
B
VAL
262
10
1_555
B
ALA
263
B
ALA
263
10
1_555
B
UMP
304
E
UMP
10
1_555
B
HOH
414
H
HOH
10
1_555
B
HOH
472
H
HOH
10
1_555
173
P 63