0.007825
0.004518
0.000000
0.000000
0.009035
0.000000
0.000000
0.000000
0.014684
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
127.800
127.800
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
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 H21 N9 O4
451.439
2-{4-[2-(2-AMINO-4-OXO-4,7-DIHYDRO-3H-PYRROLO[2,3-D]PYRIMIDIN-5-YL)-ETHYL]-BENZOYLAMINO}-4-(2H-TETRAZOL-5-YL)-BUTYRIC ACID
LY341770
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
N
Y
229
N
C
Y
230
N
N
Y
231
N
C
Y
232
N
C
Y
233
N
C
Y
234
N
N
Y
235
N
C
Y
236
N
C
N
237
N
C
N
238
N
C
Y
239
N
C
Y
240
N
C
Y
241
N
C
Y
242
N
C
Y
243
N
C
Y
244
N
C
N
245
N
C
N
246
N
O
N
247
N
N
N
248
S
C
N
249
N
C
N
250
N
C
N
251
N
O
N
252
N
O
N
253
N
N
N
254
N
O
N
255
N
C
Y
256
N
C
Y
257
N
N
Y
258
N
N
Y
259
N
N
Y
260
N
N
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
H
N
281
N
H
N
282
N
N
N
283
S
C
N
284
N
C
N
285
N
O
N
286
N
C
N
287
N
C
N
288
N
C
N
289
N
C
N
290
N
N
N
291
N
O
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
H
N
306
N
H
N
307
N
N
N
308
S
C
N
309
N
C
N
310
N
O
N
311
N
C
N
312
N
C
N
313
N
S
N
314
N
C
N
315
N
O
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
H
N
326
N
H
N
327
N
N
N
328
S
C
N
329
N
C
N
330
N
O
N
331
N
C
Y
332
N
C
Y
333
N
C
Y
334
N
C
Y
335
N
C
Y
336
N
C
Y
337
N
C
N
338
N
O
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
H
N
349
N
H
N
350
N
N
N
351
S
C
N
352
N
C
N
353
N
O
N
354
N
C
N
355
N
C
N
356
N
C
N
357
N
O
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
H
N
366
N
H
N
367
N
N
N
368
S
C
N
369
N
C
N
370
N
O
N
371
N
C
N
372
N
O
N
373
N
O
N
374
N
H
N
375
N
H
N
376
N
H
N
377
N
H
N
378
N
H
N
379
N
H
N
380
N
H
N
381
N
N
N
382
S
C
N
383
N
C
N
384
N
O
N
385
R
C
N
386
N
O
N
387
N
C
N
388
N
O
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
H
N
397
N
H
N
398
N
N
N
399
S
C
N
400
N
C
N
401
N
O
N
402
N
C
Y
403
N
C
Y
404
N
C
Y
405
N
C
Y
406
N
N
Y
407
N
C
Y
408
N
C
Y
409
N
C
Y
410
N
C
Y
411
N
C
N
412
N
O
N
413
N
H
N
414
N
H
N
415
N
H
N
416
N
H
N
417
N
H
N
418
N
H
N
419
N
H
N
420
N
H
N
421
N
H
N
422
N
H
N
423
N
H
N
424
N
H
N
425
N
N
N
426
S
C
N
427
N
C
N
428
N
O
N
429
N
C
Y
430
N
C
Y
431
N
C
Y
432
N
C
Y
433
N
C
Y
434
N
C
Y
435
N
C
N
436
N
O
N
437
N
O
N
438
N
H
N
439
N
H
N
440
N
H
N
441
N
H
N
442
N
H
N
443
N
H
N
444
N
H
N
445
N
H
N
446
N
H
N
447
N
H
N
448
N
H
N
449
N
N
N
450
N
C
N
451
N
N
N
452
N
C
N
453
N
C
N
454
N
C
N
455
N
O
N
456
N
O
N
457
R
C
N
458
N
C
N
459
S
C
N
460
R
C
N
461
N
O
N
462
N
O
N
463
N
C
N
464
N
O
N
465
N
P
N
466
N
O
N
467
N
O
N
468
N
O
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
H
N
481
N
H
N
482
N
N
N
483
S
C
N
484
N
C
N
485
N
O
N
486
N
C
N
487
N
C
N
488
N
C
N
489
N
O
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
499
N
H
N
500
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
sing
Y
217
N
sing
N
218
N
sing
Y
219
N
doub
N
220
N
sing
Y
221
N
sing
Y
222
N
doub
Y
223
N
sing
Y
224
N
sing
Y
225
N
sing
N
226
N
doub
Y
227
N
sing
N
228
N
sing
Y
229
N
doub
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
Y
238
N
doub
Y
239
N
sing
Y
240
N
sing
N
241
N
sing
Y
242
N
doub
N
243
N
sing
Y
244
N
sing
N
245
N
sing
Y
246
N
doub
N
247
N
sing
N
248
N
sing
N
249
N
sing
N
250
N
doub
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
doub
N
261
N
sing
N
262
N
sing
N
263
N
sing
N
264
N
sing
N
265
N
sing
N
266
N
sing
Y
267
N
doub
Y
268
N
sing
Y
269
N
sing
Y
270
N
sing
N
271
N
sing
Y
272
N
doub
N
273
N
sing
N
274
N
sing
N
275
N
sing
N
276
N
sing
N
277
N
sing
N
278
N
sing
N
279
N
doub
N
280
N
sing
N
281
N
sing
N
282
N
sing
N
283
N
sing
N
284
N
sing
N
285
N
sing
N
286
N
sing
N
287
N
sing
N
288
N
sing
N
289
N
sing
N
290
N
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
doub
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
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
doub
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
sing
N
360
N
sing
N
361
N
sing
N
362
N
doub
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
sing
N
373
N
sing
N
374
N
sing
N
375
N
doub
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
sing
N
389
N
sing
N
390
N
sing
N
391
N
doub
N
392
N
sing
N
393
N
sing
N
394
N
sing
N
395
N
sing
Y
396
N
doub
Y
397
N
sing
Y
398
N
sing
N
399
N
sing
Y
400
N
doub
Y
401
N
sing
Y
402
N
sing
N
403
N
sing
Y
404
N
sing
Y
405
N
doub
N
406
N
sing
Y
407
N
doub
N
408
N
sing
Y
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
sing
N
417
N
sing
N
418
N
sing
N
419
N
doub
N
420
N
sing
N
421
N
sing
N
422
N
sing
N
423
N
sing
Y
424
N
doub
Y
425
N
sing
Y
426
N
sing
N
427
N
sing
Y
428
N
doub
N
429
N
sing
Y
430
N
doub
N
431
N
sing
Y
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
sing
N
439
N
sing
N
440
N
sing
N
441
N
doub
N
442
N
sing
N
443
N
sing
N
444
N
sing
N
445
N
doub
N
446
N
doub
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
sing
N
464
N
sing
N
465
N
sing
N
466
N
doub
N
467
N
sing
N
468
N
sing
N
469
N
sing
N
470
N
sing
N
471
N
sing
N
472
N
sing
N
473
N
sing
N
474
N
sing
N
475
N
sing
N
476
N
sing
N
477
N
doub
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
N
486
N
sing
N
487
N
sing
N
488
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
US
Biochemistry
BICHAW
0033
0006-2960
34
16279
16287
Crystal Structure of Human Thymidylate Synthase: A Structural Mechanism for Guiding Substrates into the Active Site
1995
10.2210/pdb1jtq/pdb
pdb_00001jtq
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
1997-04-01
RIGAKU RAXIS II
graphite
SINGLE WAVELENGTH
M
x-ray
1
1.5418
1.0
1.5418
ROTATING ANODE
RIGAKU
30559.666
THYMIDYLATE SYNTHASE
2.1.1.45
2
man
polymer
308.182
2'-DEOXYURIDINE 5'-MONOPHOSPHATE
2
syn
non-polymer
451.439
2-{4-[2-(2-AMINO-4-OXO-4,7-DIHYDRO-3H-PYRROLO[2,3-D]PYRIMIDIN-5-YL)-ETHYL]-BENZOYLAMINO}-4-(2H-TETRAZOL-5-YL)-BUTYRIC ACID
2
syn
non-polymer
18.015
water
102
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
2.63
53.15
VAPOR DIFFUSION, HANGING DROP
8.0
potassium phosphate, MgCl2, DTT, EDTA, ammonium sulfate, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 296.16K
296.16
reflns
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
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
2017-10-11
1
4
2023-08-16
_reflns.percent_possible_obs
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_struct_conn.pdbx_dist_value
_struct_conn.pdbx_leaving_atom_flag
_struct_conn.ptnr1_auth_asym_id
_struct_conn.ptnr1_auth_comp_id
_struct_conn.ptnr1_auth_seq_id
_struct_conn.ptnr1_label_asym_id
_struct_conn.ptnr1_label_atom_id
_struct_conn.ptnr1_label_comp_id
_struct_conn.ptnr1_label_seq_id
_struct_conn.ptnr2_auth_asym_id
_struct_conn.ptnr2_auth_comp_id
_struct_conn.ptnr2_auth_seq_id
_struct_conn.ptnr2_label_asym_id
_struct_conn.ptnr2_label_atom_id
_struct_conn.ptnr2_label_comp_id
_struct_conn.ptnr2_label_seq_id
_struct_ref_seq_dif.details
_struct_site.pdbx_auth_asym_id
_struct_site.pdbx_auth_comp_id
_struct_site.pdbx_auth_seq_id
E. coli TS complex with dUMP and a polyglutamylated form of LY231514
P1 crystal form of human thymidylate synthase complex with dUMP and LY231514
human thymidylate synthase bound to dUMP and LY231514, a pyrrolo(2,3-d)pyrimidine-based antifolate
RCSB
Y
RCSB
2001-08-21
REL
REL
UMP
2'-DEOXYURIDINE 5'-MONOPHOSPHATE
LY3
2-{4-[2-(2-AMINO-4-OXO-4,7-DIHYDRO-3H-PYRROLO[2,3-D]PYRIMIDIN-5-YL)-ETHYL]-BENZOYLAMINO}-4-(2H-TETRAZOL-5-YL)-BUTYRIC ACID
HOH
water
2KCE
PDB entry 2KCE
PDB
experimental model
DUM
565
2
UMP
UMP
565
A
L34
566
3
LY3
LY3
501
A
DUM
565
2
UMP
UMP
565
B
L34
566
3
LY3
LY3
502
B
WAT
601
4
HOH
HOH
601
A
WAT
602
4
HOH
HOH
602
A
WAT
603
4
HOH
HOH
603
A
WAT
604
4
HOH
HOH
604
A
WAT
606
4
HOH
HOH
606
A
WAT
608
4
HOH
HOH
608
A
WAT
610
4
HOH
HOH
610
A
WAT
612
4
HOH
HOH
612
A
WAT
613
4
HOH
HOH
613
A
WAT
614
4
HOH
HOH
614
A
WAT
617
4
HOH
HOH
617
A
WAT
618
4
HOH
HOH
618
A
WAT
619
4
HOH
HOH
619
A
WAT
621
4
HOH
HOH
621
A
WAT
622
4
HOH
HOH
622
A
WAT
623
4
HOH
HOH
623
A
WAT
625
4
HOH
HOH
625
A
WAT
628
4
HOH
HOH
628
A
WAT
631
4
HOH
HOH
631
A
WAT
632
4
HOH
HOH
632
A
WAT
633
4
HOH
HOH
633
A
WAT
634
4
HOH
HOH
634
A
WAT
635
4
HOH
HOH
635
A
WAT
636
4
HOH
HOH
636
A
WAT
637
4
HOH
HOH
637
A
WAT
640
4
HOH
HOH
640
A
WAT
641
4
HOH
HOH
641
A
WAT
642
4
HOH
HOH
642
A
WAT
643
4
HOH
HOH
643
A
WAT
644
4
HOH
HOH
644
A
WAT
646
4
HOH
HOH
646
A
WAT
647
4
HOH
HOH
647
A
WAT
649
4
HOH
HOH
649
A
WAT
650
4
HOH
HOH
650
A
WAT
653
4
HOH
HOH
653
A
WAT
655
4
HOH
HOH
655
A
WAT
658
4
HOH
HOH
658
A
WAT
660
4
HOH
HOH
660
A
WAT
661
4
HOH
HOH
661
A
WAT
663
4
HOH
HOH
663
A
WAT
664
4
HOH
HOH
664
A
WAT
665
4
HOH
HOH
665
A
WAT
669
4
HOH
HOH
669
A
WAT
670
4
HOH
HOH
670
A
WAT
672
4
HOH
HOH
672
A
WAT
674
4
HOH
HOH
674
A
WAT
676
4
HOH
HOH
676
A
WAT
678
4
HOH
HOH
678
A
WAT
679
4
HOH
HOH
679
A
WAT
680
4
HOH
HOH
680
A
WAT
682
4
HOH
HOH
682
A
WAT
686
4
HOH
HOH
686
A
WAT
687
4
HOH
HOH
687
A
WAT
688
4
HOH
HOH
688
A
WAT
689
4
HOH
HOH
689
A
WAT
690
4
HOH
HOH
690
A
WAT
691
4
HOH
HOH
691
A
WAT
693
4
HOH
HOH
693
A
WAT
694
4
HOH
HOH
694
A
WAT
695
4
HOH
HOH
695
A
WAT
696
4
HOH
HOH
696
A
WAT
698
4
HOH
HOH
698
A
WAT
699
4
HOH
HOH
699
A
WAT
700
4
HOH
HOH
700
A
WAT
701
4
HOH
HOH
701
A
WAT
605
4
HOH
HOH
605
B
WAT
607
4
HOH
HOH
607
B
WAT
609
4
HOH
HOH
609
B
WAT
611
4
HOH
HOH
611
B
WAT
615
4
HOH
HOH
615
B
WAT
616
4
HOH
HOH
616
B
WAT
620
4
HOH
HOH
620
B
WAT
624
4
HOH
HOH
624
B
WAT
626
4
HOH
HOH
626
B
WAT
627
4
HOH
HOH
627
B
WAT
629
4
HOH
HOH
629
B
WAT
630
4
HOH
HOH
630
B
WAT
638
4
HOH
HOH
638
B
WAT
639
4
HOH
HOH
639
B
WAT
645
4
HOH
HOH
645
B
WAT
648
4
HOH
HOH
648
B
WAT
651
4
HOH
HOH
651
B
WAT
652
4
HOH
HOH
652
B
WAT
654
4
HOH
HOH
654
B
WAT
656
4
HOH
HOH
656
B
WAT
657
4
HOH
HOH
657
B
WAT
659
4
HOH
HOH
659
B
WAT
662
4
HOH
HOH
662
B
WAT
666
4
HOH
HOH
666
B
WAT
667
4
HOH
HOH
667
B
WAT
668
4
HOH
HOH
668
B
WAT
671
4
HOH
HOH
671
B
WAT
673
4
HOH
HOH
673
B
WAT
675
4
HOH
HOH
675
B
WAT
677
4
HOH
HOH
677
B
WAT
681
4
HOH
HOH
681
B
WAT
683
4
HOH
HOH
683
B
WAT
684
4
HOH
HOH
684
B
WAT
685
4
HOH
HOH
685
B
WAT
692
4
HOH
HOH
692
B
WAT
697
4
HOH
HOH
697
B
WAT
702
4
HOH
HOH
702
B
MET
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
MET
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
7870
-12
19140
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
HIS
32
A
N
HIS
32
A
O
GLY
203
A
O
GLY
203
A
O
THR
202
A
O
THR
202
A
N
GLN
165
A
N
GLN
165
A
O
TYR
164
A
O
TYR
164
A
N
PHE
149
A
N
PHE
149
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
MET
34
B
N
MET
34
B
O
TRP
201
B
O
TRP
201
B
O
GLU
195
B
O
GLU
195
B
N
LEU
159
B
N
LEU
159
B
O
TYR
164
B
O
TYR
164
B
N
PHE
149
B
N
PHE
149
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
A
PRO
43
-66.05
63.74
1
A
GLU
74
-69.88
3.23
1
A
PRO
92
-68.18
65.90
1
A
TYR
94
-29.02
-63.91
1
A
ALA
100
-156.62
66.51
1
B
ILE
69
-69.10
0.39
1
B
VAL
93
-78.91
-165.03
1
B
TYR
94
-26.31
-61.93
PROTEIN_REP.PARAM
PROTEIN.TOP
WATER_REP.PARAM
WATER.TOP
LY341770_062998.PAR
LY341770_062998.TOP
PARAMED.lig
topo_covalent.dump
FORM.PARAM
32.3
-0.59
1.12
0.00
-0.59
0.00
1.17
0.2190000
0.005
0.1810000
0.1850000
2.50
36.89
2165
21792
21792
9.9
98.6
RANDOM
140967.48
0.000000
1
RESTRAINED
THROUGHOUT
0.0
0.0
FOURIER SYNTHESIS
PDB entry 2KCE
FLAT MODEL
38.2798
0.301833
0.32
0.27
5.00
0.48
0.40
2.50
36.89
102
4514
106
0
4306
0.008
1.5
25.9
1.20
0.3310000
0.018
0.2790000
2.66
341
3126
6
9.8
95.4
10.9
2.5
40.
1JTQ
21792
21792
0
-3
0.1090000
1
7.4
5
0.3850000
2.5
2.57
2.4
1
93
model building
X-PLOR
refinement
CNS
1.0
data reduction
DENZO
data scaling
SCALEPACK
phasing
X-PLOR
E. coli TS Complex with dUMP and the Pyrrolo(2,3-d)pyrimidine-based Antifolate LY341770
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
HIS
51
A
HIS
51
HELX_P
A
GLN
64
A
GLN
64
1
2
14
A
ILE
69
A
ILE
69
HELX_P
A
GLU
74
A
GLU
74
1
3
6
A
TRP
80
A
TRP
80
HELX_P
A
ALA
84
A
ALA
84
5
4
5
A
VAL
93
A
VAL
93
HELX_P
A
ALA
100
A
ALA
100
1
5
8
A
ASP
110
A
ASP
110
HELX_P
A
ASP
122
A
ASP
122
1
6
13
A
ASN
134
A
ASN
134
HELX_P
A
MET
141
A
MET
141
5
7
8
A
LEU
172
A
LEU
172
HELX_P
A
CYS
192
A
CYS
192
1
8
21
A
HIS
212
A
HIS
212
HELX_P
A
SER
221
A
SER
221
1
9
10
A
ARG
243
A
ARG
243
HELX_P
A
GLU
245
A
GLU
245
5
10
3
B
CXM
1
B
CXM
1
HELX_P
B
GLY
15
B
GLY
15
1
11
15
B
GLN
39
B
GLN
39
HELX_P
B
GLY
41
B
GLY
41
5
12
3
B
HIS
51
B
HIS
51
HELX_P
B
GLY
65
B
GLY
65
1
13
15
B
ILE
69
B
ILE
69
HELX_P
B
ASN
75
B
ASN
75
1
14
7
B
TRP
80
B
TRP
80
HELX_P
B
ALA
84
B
ALA
84
5
15
5
B
VAL
93
B
VAL
93
HELX_P
B
ALA
100
B
ALA
100
1
16
8
B
ASP
110
B
ASP
110
HELX_P
B
ASP
122
B
ASP
122
1
17
13
B
ASN
134
B
ASN
134
HELX_P
B
MET
141
B
MET
141
5
18
8
B
LEU
172
B
LEU
172
HELX_P
B
CYS
192
B
CYS
192
1
19
21
B
HIS
212
B
HIS
212
HELX_P
B
SER
221
B
SER
221
1
20
10
B
SER
238
B
SER
238
HELX_P
B
TYR
242
B
TYR
242
5
21
5
B
ARG
243
B
ARG
243
HELX_P
B
GLU
245
B
GLU
245
5
22
3
covale
1.314
both
A
CXM
1
A
C
CXM
1
1_555
A
LYS
2
A
N
LYS
2
1_555
covale
1.843
none
A
CYS
146
A
SG
CYS
146
1_555
A
UMP
565
C
C6
UMP
1_555
covale
1.318
both
B
CXM
1
B
C
CXM
1
1_555
B
LYS
2
B
N
LYS
2
1_555
covale
1.846
none
B
CYS
146
B
SG
CYS
146
1_555
B
UMP
565
E
C6
UMP
1_555
TRANSFERASE
antifolate, cancer, drug resistance, dTMP synthesis, TRANSFERASE
TYSY_ECOLI
UNP
1
1
P0A884
MKQYLELMQKVLDEGTQKNDRTGTGTLSIFGHQMRFNLQDGFPLVTTKRCHLRSIIHELLWFLQGDTNIAYLHENNVTIW
DEWADENGDLGPVYGKQWRAWPTPDGRHIDQITTVLNQLKNDPDSRRIIVSAWNVGELDKMALAPCHAFFQFYVADGKLS
CQLYQRSCDVFLGLPFNIASYALLVHMMAQQCDLEVGDFVWTGGDTHLYSNHMDQTHLQLSREPRPLPKLIIKRKPESIF
DYRFEDFEIEGYDPHPGIKAPVAI
1
264
1JTQ
1
264
P0A884
A
1
1
264
1
264
1JTQ
1
264
P0A884
B
1
1
264
1
MET
modified residue
CXM
1
1JTQ
A
P0A884
UNP
1
1
2
MET
modified residue
CXM
1
1JTQ
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 565
A
UMP
565
Software
15
BINDING SITE FOR RESIDUE LY3 A 501
A
LY3
501
Software
12
BINDING SITE FOR RESIDUE UMP B 565
B
UMP
565
Software
16
BINDING SITE FOR RESIDUE LY3 B 502
B
LY3
502
Software
11
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
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
LY3
501
D
LY3
15
1_555
A
HOH
602
G
HOH
15
1_555
A
HOH
655
G
HOH
15
1_555
B
ARG
126
B
ARG
126
15
1_555
B
ARG
127
B
ARG
127
15
1_555
A
HIS
51
A
HIS
51
12
1_555
A
SER
54
A
SER
54
12
1_555
A
ILE
79
A
ILE
79
12
1_555
A
TRP
83
A
TRP
83
12
1_555
A
LEU
143
A
LEU
143
12
1_555
A
ASP
169
A
ASP
169
12
1_555
A
GLY
173
A
GLY
173
12
1_555
A
LYS
259
A
LYS
259
12
1_555
A
ALA
263
A
ALA
263
12
1_555
A
UMP
565
C
UMP
12
1_555
A
HOH
623
G
HOH
12
1_555
A
HOH
658
G
HOH
12
1_555
A
ARG
126
A
ARG
126
16
1_555
A
ARG
127
A
ARG
127
16
1_555
B
ARG
21
B
ARG
21
16
1_555
B
CYS
146
B
CYS
146
16
1_555
B
HIS
147
B
HIS
147
16
1_555
B
GLN
165
B
GLN
165
16
1_555
B
ARG
166
B
ARG
166
16
1_555
B
SER
167
B
SER
167
16
1_555
B
CYS
168
B
CYS
168
16
1_555
B
ASP
169
B
ASP
169
16
1_555
B
ASN
177
B
ASN
177
16
1_555
B
HIS
207
B
HIS
207
16
1_555
B
TYR
209
B
TYR
209
16
1_555
B
LY3
502
F
LY3
16
1_555
B
HOH
659
H
HOH
16
1_555
B
HOH
668
H
HOH
16
1_555
B
HIS
51
B
HIS
51
11
1_555
B
SER
54
B
SER
54
11
1_555
B
ILE
79
B
ILE
79
11
1_555
B
TRP
80
B
TRP
80
11
1_555
B
TRP
83
B
TRP
83
11
1_555
B
ASP
169
B
ASP
169
11
1_555
B
GLY
173
B
GLY
173
11
1_555
B
TYR
209
B
TYR
209
11
1_555
B
VAL
262
B
VAL
262
11
1_555
B
ALA
263
B
ALA
263
11
1_555
B
UMP
565
E
UMP
11
1_555
173
P 63