0.015302
0.000000
0.000000
0.000000
0.014820
0.000000
0.000000
0.000000
0.005977
0.00000
0.00000
0.00000
Lee, T.-W.
Cherney, M.M.
Huitema, C.
Liu, J.
James, K.E.
Powers, J.C.
Eltis, L.D.
James, M.N.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
8
90.00
90.00
90.00
65.353
67.478
167.322
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
C32 H43 N5 O9
641.712
(5S,8S,14R)-ETHYL 11-(3-AMINO-3-OXOPROPYL)-8-BENZYL-14-HYDROXY-5-ISOBUTYL-3,6,9,12-TETRAOXO-1-PHENYL-2-OXA-4,7,10,11-TETRAAZAPENTADECAN-15-OATE
non-polymer
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
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
N
C
N
76
N
O
N
77
N
C
Y
78
N
C
Y
79
N
C
Y
80
N
C
Y
81
N
C
Y
82
N
C
Y
83
N
C
N
84
N
O
N
85
S
C
N
86
N
C
N
87
N
C
N
88
N
C
N
89
N
C
N
90
N
C
N
91
N
O
N
92
N
N
N
93
S
C
N
94
N
C
Y
95
N
C
Y
96
N
C
Y
97
N
C
Y
98
N
C
Y
99
N
C
Y
100
N
C
N
101
N
C
N
102
N
O
N
103
N
N
N
104
N
N
N
105
N
C
N
106
N
C
N
107
N
C
N
108
N
N
N
109
N
O
N
110
N
C
N
111
N
O
N
112
N
C
N
113
S
C
N
114
N
O
N
115
N
C
N
116
N
O
N
117
N
O
N
118
N
C
N
119
N
C
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
H
N
133
N
H
N
134
N
H
N
135
N
H
N
136
N
H
N
137
N
H
N
138
N
H
N
139
N
H
N
140
N
H
N
141
N
H
N
142
N
H
N
143
N
H
N
144
N
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
H
N
156
N
H
N
157
N
H
N
158
N
H
N
159
N
H
N
160
N
H
N
161
N
H
N
162
N
H
N
163
N
N
N
164
R
C
N
165
N
C
N
166
N
O
N
167
N
C
N
168
N
S
N
169
N
O
N
170
N
H
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
N
N
178
S
C
N
179
N
C
N
180
N
O
N
181
N
C
N
182
N
C
N
183
N
C
N
184
N
O
N
185
N
N
N
186
N
O
N
187
N
H
N
188
N
H
N
189
N
H
N
190
N
H
N
191
N
H
N
192
N
H
N
193
N
H
N
194
N
H
N
195
N
H
N
196
N
H
N
197
N
N
N
198
S
C
N
199
N
C
N
200
N
O
N
201
N
C
N
202
N
C
N
203
N
C
N
204
N
O
N
205
N
O
N
206
N
O
N
207
N
H
N
208
N
H
N
209
N
H
N
210
N
H
N
211
N
H
N
212
N
H
N
213
N
H
N
214
N
H
N
215
N
H
N
216
N
N
N
217
N
C
N
218
N
C
N
219
N
O
N
220
N
O
N
221
N
H
N
222
N
H
N
223
N
H
N
224
N
H
N
225
N
H
N
226
N
N
N
227
S
C
N
228
N
C
N
229
N
O
N
230
N
C
Y
231
N
C
Y
232
N
N
Y
233
N
C
Y
234
N
C
Y
235
N
N
N
236
N
O
N
237
N
H
N
238
N
H
N
239
N
H
N
240
N
H
N
241
N
H
N
242
N
H
N
243
N
H
N
244
N
H
N
245
N
H
N
246
N
H
N
247
N
O
N
248
N
H
N
249
N
H
N
250
N
N
N
251
S
C
N
252
N
C
N
253
N
O
N
254
S
C
N
255
N
C
N
256
N
C
N
257
N
C
N
258
N
O
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
N
N
273
S
C
N
274
N
C
N
275
N
O
N
276
N
C
N
277
N
C
N
278
N
C
N
279
N
C
N
280
N
O
N
281
N
H
N
282
N
H
N
283
N
H
N
284
N
H
N
285
N
H
N
286
N
H
N
287
N
H
N
288
N
H
N
289
N
H
N
290
N
H
N
291
N
H
N
292
N
H
N
293
N
H
N
294
N
N
N
295
S
C
N
296
N
C
N
297
N
O
N
298
N
C
N
299
N
C
N
300
N
C
N
301
N
C
N
302
N
N
N
303
N
O
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
H
N
312
N
H
N
313
N
H
N
314
N
H
N
315
N
H
N
316
N
H
N
317
N
H
N
318
N
H
N
319
N
N
N
320
S
C
N
321
N
C
N
322
N
O
N
323
N
C
N
324
N
C
N
325
N
S
N
326
N
C
N
327
N
O
N
328
N
H
N
329
N
H
N
330
N
H
N
331
N
H
N
332
N
H
N
333
N
H
N
334
N
H
N
335
N
H
N
336
N
H
N
337
N
H
N
338
N
H
N
339
N
N
N
340
S
C
N
341
N
C
N
342
N
O
N
343
N
C
Y
344
N
C
Y
345
N
C
Y
346
N
C
Y
347
N
C
Y
348
N
C
Y
349
N
C
N
350
N
O
N
351
N
H
N
352
N
H
N
353
N
H
N
354
N
H
N
355
N
H
N
356
N
H
N
357
N
H
N
358
N
H
N
359
N
H
N
360
N
H
N
361
N
H
N
362
N
N
N
363
S
C
N
364
N
C
N
365
N
O
N
366
N
C
N
367
N
C
N
368
N
C
N
369
N
O
N
370
N
H
N
371
N
H
N
372
N
H
N
373
N
H
N
374
N
H
N
375
N
H
N
376
N
H
N
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
N
C
N
384
N
O
N
385
N
O
N
386
N
H
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
N
N
394
S
C
N
395
N
C
N
396
N
O
N
397
R
C
N
398
N
O
N
399
N
C
N
400
N
O
N
401
N
H
N
402
N
H
N
403
N
H
N
404
N
H
N
405
N
H
N
406
N
H
N
407
N
H
N
408
N
H
N
409
N
H
N
410
N
N
N
411
S
C
N
412
N
C
N
413
N
O
N
414
N
C
Y
415
N
C
Y
416
N
C
Y
417
N
C
Y
418
N
N
Y
419
N
C
Y
420
N
C
Y
421
N
C
Y
422
N
C
Y
423
N
C
N
424
N
O
N
425
N
H
N
426
N
H
N
427
N
H
N
428
N
H
N
429
N
H
N
430
N
H
N
431
N
H
N
432
N
H
N
433
N
H
N
434
N
H
N
435
N
H
N
436
N
H
N
437
N
N
N
438
S
C
N
439
N
C
N
440
N
O
N
441
N
C
Y
442
N
C
Y
443
N
C
Y
444
N
C
Y
445
N
C
Y
446
N
C
Y
447
N
C
N
448
N
O
N
449
N
O
N
450
N
H
N
451
N
H
N
452
N
H
N
453
N
H
N
454
N
H
N
455
N
H
N
456
N
H
N
457
N
H
N
458
N
H
N
459
N
H
N
460
N
H
N
461
N
N
N
462
S
C
N
463
N
C
N
464
N
O
N
465
N
C
N
466
N
C
N
467
N
C
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
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
doub
N
75
N
sing
N
76
N
sing
N
77
N
sing
N
78
N
sing
Y
79
N
doub
Y
80
N
sing
Y
81
N
sing
N
82
N
sing
Y
83
N
doub
N
84
N
sing
Y
85
N
sing
N
86
N
sing
Y
87
N
doub
N
88
N
sing
N
89
N
sing
N
90
N
sing
N
91
N
sing
N
92
N
sing
N
93
N
sing
N
94
N
sing
N
95
N
sing
N
96
N
sing
N
97
N
sing
N
98
N
sing
N
99
N
sing
N
100
N
sing
N
101
N
sing
N
102
N
sing
N
103
N
sing
N
104
N
sing
N
105
N
doub
N
106
N
sing
N
107
N
sing
N
108
N
sing
N
109
N
sing
N
110
N
sing
N
111
N
sing
N
112
N
sing
N
113
N
sing
N
114
N
sing
Y
115
N
doub
Y
116
N
sing
Y
117
N
sing
N
118
N
sing
Y
119
N
doub
N
120
N
sing
Y
121
N
sing
N
122
N
sing
Y
123
N
doub
N
124
N
sing
N
125
N
sing
N
126
N
doub
N
127
N
sing
N
128
N
sing
N
129
N
sing
N
130
N
sing
N
131
N
sing
N
132
N
sing
N
133
N
sing
N
134
N
sing
N
135
N
sing
N
136
N
sing
N
137
N
sing
N
138
N
sing
N
139
N
doub
N
140
N
sing
N
141
N
sing
N
142
N
doub
N
143
N
sing
N
144
N
sing
N
145
N
sing
N
146
N
sing
N
147
N
sing
N
148
N
sing
N
149
N
sing
N
150
N
sing
N
151
N
doub
N
152
N
sing
N
153
N
sing
N
154
N
sing
N
155
N
sing
N
156
N
sing
N
157
N
sing
N
158
N
sing
N
159
N
sing
N
160
N
sing
N
161
N
sing
N
162
N
sing
N
163
N
sing
N
164
N
sing
N
165
N
sing
N
166
N
doub
N
167
N
sing
N
168
N
sing
N
169
N
sing
N
170
N
sing
N
171
N
sing
N
172
N
sing
N
173
N
sing
N
174
N
sing
N
175
N
sing
N
176
N
sing
N
177
N
sing
N
178
N
sing
N
179
N
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
doub
N
188
N
sing
N
189
N
sing
N
190
N
sing
N
191
N
sing
N
192
N
sing
N
193
N
sing
N
194
N
sing
N
195
N
sing
N
196
N
sing
N
197
N
sing
N
198
N
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
doub
N
207
N
sing
N
208
N
sing
N
209
N
sing
N
210
N
sing
N
211
N
sing
N
212
N
sing
N
213
N
sing
N
214
N
sing
N
215
N
sing
N
216
N
doub
N
217
N
sing
N
218
N
sing
N
219
N
sing
N
220
N
sing
N
221
N
sing
N
222
N
sing
N
223
N
sing
N
224
N
sing
N
225
N
doub
N
226
N
sing
N
227
N
sing
N
228
N
sing
N
229
N
sing
Y
230
N
sing
Y
231
N
doub
Y
232
N
doub
N
233
N
sing
Y
234
N
sing
N
235
N
sing
Y
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
doub
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
sing
N
262
N
sing
N
263
N
sing
N
264
N
sing
N
265
N
sing
N
266
N
sing
N
267
N
sing
N
268
N
sing
N
269
N
doub
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
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
doub
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
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
doub
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
sing
N
326
N
sing
N
327
N
sing
N
328
N
sing
N
329
N
sing
N
330
N
sing
N
331
N
sing
N
332
N
sing
N
333
N
doub
N
334
N
sing
N
335
N
sing
N
336
N
sing
N
337
N
sing
Y
338
N
doub
Y
339
N
sing
Y
340
N
sing
N
341
N
sing
Y
342
N
doub
N
343
N
sing
Y
344
N
doub
N
345
N
sing
Y
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
doub
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
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
doub
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
doub
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
sing
N
395
N
sing
N
396
N
sing
N
397
N
sing
N
398
N
sing
N
399
N
sing
N
400
N
sing
N
401
N
sing
N
402
N
doub
N
403
N
sing
N
404
N
sing
N
405
N
sing
N
406
N
sing
Y
407
N
doub
Y
408
N
sing
Y
409
N
sing
N
410
N
sing
Y
411
N
doub
Y
412
N
sing
Y
413
N
sing
N
414
N
sing
Y
415
N
sing
Y
416
N
doub
N
417
N
sing
Y
418
N
doub
N
419
N
sing
Y
420
N
sing
N
421
N
sing
N
422
N
sing
N
423
N
sing
N
424
N
sing
N
425
N
sing
N
426
N
sing
N
427
N
sing
N
428
N
sing
N
429
N
sing
N
430
N
doub
N
431
N
sing
N
432
N
sing
N
433
N
sing
N
434
N
sing
Y
435
N
doub
Y
436
N
sing
Y
437
N
sing
N
438
N
sing
Y
439
N
doub
N
440
N
sing
Y
441
N
doub
N
442
N
sing
Y
443
N
sing
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
doub
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
UK
J.Mol.Biol.
JMOBAK
0070
0022-2836
353
1137
1151
10.1016/j.jmb.2005.09.004
16219322
Crystal Structures of the Main Peptidase from the SARS Coronavirus Inhibited by a Substrate-like Aza-peptide Epoxide
2005
10.2210/pdb2a5k/pdb
pdb_00002a5k
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
100
1
CCD
2004-08-25
ADSC QUANTUM 210
SINGLE WAVELENGTH
M
x-ray
1
1.115869
1.0
8.3.1
ALS
1.115869
SYNCHROTRON
ALS BEAMLINE 8.3.1
33947.711
3C-like peptidase
3.4.22.-
an additional Ala at the N-terminus
2
man
polymer
641.712
(5S,8S,14R)-ETHYL 11-(3-AMINO-3-OXOPROPYL)-8-BENZYL-14-HYDROXY-5-ISOBUTYL-3,6,9,12-TETRAOXO-1-PHENYL-2-OXA-4,7,10,11-TETRAAZAPENTADECAN-15-OATE
2
syn
non-polymer
18.015
water
278
nat
water
3CL-PRO, 3CLp, NSP2
no
no
ASGFRKMAFPSGKVEGCMVQVTCGTTTLNGLWLDDTVYCPRHVICTAEDMLNPNYEDLLIRKSNHSFLVQAGNVQLRVIG
HSMQNCLLRLKVDTSNPKTPKYKFVRIQPGQTFSVLACYNGSPSGVYQCAMRPNHTIKGSFLNGSCGSVGFNIDYDCVSF
CYMHHMELPTGVHAGTDLEGKFYGPFVDRQTAQAAGTDTTITLNVLAWLYAAVINGDRWFLNRFTTTLNDFNLVAMKYNY
EPLTQDHVDILGPLSAQTGIAVLDMCAALKELLQNGMNGRTILGSTILEDEFTPFDVVRQCSGVTFQ
ASGFRKMAFPSGKVEGCMVQVTCGTTTLNGLWLDDTVYCPRHVICTAEDMLNPNYEDLLIRKSNHSFLVQAGNVQLRVIG
HSMQNCLLRLKVDTSNPKTPKYKFVRIQPGQTFSVLACYNGSPSGVYQCAMRPNHTIKGSFLNGSCGSVGFNIDYDCVSF
CYMHHMELPTGVHAGTDLEGKFYGPFVDRQTAQAAGTDTTITLNVLAWLYAAVINGDRWFLNRFTTTLNDFNLVAMKYNY
EPLTQDHVDILGPLSAQTGIAVLDMCAALKELLQNGMNGRTILGSTILEDEFTPFDVVRQCSGVTFQ
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
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
Coronavirus
SARS
Escherichia
sample
227859
SARS coronavirus
562
Escherichia coli
GJ1158
plasmid
PT7HSP2
1
2.73
54.9
VAPOR DIFFUSION, HANGING DROP
6.5
ammonium acetate, PEG 8000, ethylene glycol, dithiothreitol, MES, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
298
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
Version format compliance
Data collection
Database references
Derived calculations
Refinement description
1
0
2005-10-25
1
1
2007-10-16
1
2
2011-07-13
1
3
2023-08-23
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_struct_conn.pdbx_leaving_atom_flag
_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_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
Crystal structure of SARS coronavirus main peptidase unbound in the crystal form C2
Crystal structure of SARS coronavirus main peptidase inhibited by an aza-peptide epoxide in the crystal form C2
HETEROGEN
BEFORE BINDING TO THE PEPTIDASE, CBM, CBO AND OBN FORM AN EPOXIDE RING IN AZP. UPON BINDING TO THE PEPTIDASE, CYS145 SG NUCLEOPHILLICALLY ATTACKS CBM, RESULTING IN THE OPENING OF THE RING AND THE INVERSION OF THE CONFIGURATIONS OF CBM AND CBO.
RCSB
Y
RCSB
2005-06-30
REL
REL
AZP
(5S,8S,14R)-ETHYL 11-(3-AMINO-3-OXOPROPYL)-8-BENZYL-14-HYDROXY-5-ISOBUTYL-3,6,9,12-TETRAOXO-1-PHENYL-2-OXA-4,7,10,11-TETRAAZAPENTADECAN-15-OATE
HOH
water
2A5A
pdb entry 2A5A
PDB
experimental model
AZP
305
2
AZP
AZP
307
A
AZP
305
2
AZP
AZP
307
B
HOH
1
3
HOH
HOH
308
A
HOH
2
3
HOH
HOH
309
A
HOH
3
3
HOH
HOH
310
A
HOH
4
3
HOH
HOH
311
A
HOH
5
3
HOH
HOH
312
A
HOH
6
3
HOH
HOH
313
A
HOH
7
3
HOH
HOH
314
A
HOH
8
3
HOH
HOH
315
A
HOH
9
3
HOH
HOH
316
A
HOH
10
3
HOH
HOH
317
A
HOH
11
3
HOH
HOH
318
A
HOH
12
3
HOH
HOH
319
A
HOH
13
3
HOH
HOH
320
A
HOH
14
3
HOH
HOH
321
A
HOH
15
3
HOH
HOH
322
A
HOH
16
3
HOH
HOH
323
A
HOH
17
3
HOH
HOH
324
A
HOH
18
3
HOH
HOH
325
A
HOH
19
3
HOH
HOH
326
A
HOH
20
3
HOH
HOH
327
A
HOH
21
3
HOH
HOH
328
A
HOH
22
3
HOH
HOH
329
A
HOH
23
3
HOH
HOH
330
A
HOH
24
3
HOH
HOH
331
A
HOH
25
3
HOH
HOH
332
A
HOH
26
3
HOH
HOH
333
A
HOH
27
3
HOH
HOH
334
A
HOH
28
3
HOH
HOH
335
A
HOH
29
3
HOH
HOH
336
A
HOH
30
3
HOH
HOH
337
A
HOH
31
3
HOH
HOH
338
A
HOH
32
3
HOH
HOH
339
A
HOH
38
3
HOH
HOH
340
A
HOH
55
3
HOH
HOH
341
A
HOH
56
3
HOH
HOH
342
A
HOH
59
3
HOH
HOH
343
A
HOH
62
3
HOH
HOH
344
A
HOH
63
3
HOH
HOH
345
A
HOH
64
3
HOH
HOH
346
A
HOH
65
3
HOH
HOH
347
A
HOH
66
3
HOH
HOH
348
A
HOH
67
3
HOH
HOH
349
A
HOH
72
3
HOH
HOH
350
A
HOH
73
3
HOH
HOH
351
A
HOH
74
3
HOH
HOH
352
A
HOH
75
3
HOH
HOH
353
A
HOH
76
3
HOH
HOH
354
A
HOH
77
3
HOH
HOH
355
A
HOH
78
3
HOH
HOH
356
A
HOH
79
3
HOH
HOH
357
A
HOH
80
3
HOH
HOH
358
A
HOH
81
3
HOH
HOH
359
A
HOH
82
3
HOH
HOH
360
A
HOH
83
3
HOH
HOH
361
A
HOH
84
3
HOH
HOH
362
A
HOH
85
3
HOH
HOH
363
A
HOH
86
3
HOH
HOH
364
A
HOH
87
3
HOH
HOH
365
A
HOH
88
3
HOH
HOH
366
A
HOH
89
3
HOH
HOH
367
A
HOH
90
3
HOH
HOH
368
A
HOH
99
3
HOH
HOH
369
A
HOH
100
3
HOH
HOH
370
A
HOH
101
3
HOH
HOH
371
A
HOH
102
3
HOH
HOH
372
A
HOH
103
3
HOH
HOH
373
A
HOH
104
3
HOH
HOH
374
A
HOH
106
3
HOH
HOH
375
A
HOH
107
3
HOH
HOH
376
A
HOH
108
3
HOH
HOH
377
A
HOH
109
3
HOH
HOH
378
A
HOH
110
3
HOH
HOH
379
A
HOH
111
3
HOH
HOH
380
A
HOH
112
3
HOH
HOH
381
A
HOH
113
3
HOH
HOH
382
A
HOH
115
3
HOH
HOH
383
A
HOH
116
3
HOH
HOH
384
A
HOH
117
3
HOH
HOH
385
A
HOH
118
3
HOH
HOH
386
A
HOH
119
3
HOH
HOH
387
A
HOH
120
3
HOH
HOH
388
A
HOH
121
3
HOH
HOH
389
A
HOH
122
3
HOH
HOH
390
A
HOH
123
3
HOH
HOH
391
A
HOH
124
3
HOH
HOH
392
A
HOH
125
3
HOH
HOH
393
A
HOH
127
3
HOH
HOH
394
A
HOH
128
3
HOH
HOH
395
A
HOH
129
3
HOH
HOH
396
A
HOH
130
3
HOH
HOH
397
A
HOH
131
3
HOH
HOH
398
A
HOH
132
3
HOH
HOH
399
A
HOH
133
3
HOH
HOH
400
A
HOH
134
3
HOH
HOH
401
A
HOH
135
3
HOH
HOH
402
A
HOH
139
3
HOH
HOH
403
A
HOH
141
3
HOH
HOH
404
A
HOH
142
3
HOH
HOH
405
A
HOH
143
3
HOH
HOH
406
A
HOH
145
3
HOH
HOH
407
A
HOH
147
3
HOH
HOH
408
A
HOH
148
3
HOH
HOH
409
A
HOH
149
3
HOH
HOH
410
A
HOH
151
3
HOH
HOH
411
A
HOH
152
3
HOH
HOH
412
A
HOH
154
3
HOH
HOH
413
A
HOH
158
3
HOH
HOH
414
A
HOH
160
3
HOH
HOH
415
A
HOH
163
3
HOH
HOH
416
A
HOH
164
3
HOH
HOH
417
A
HOH
165
3
HOH
HOH
418
A
HOH
166
3
HOH
HOH
419
A
HOH
167
3
HOH
HOH
420
A
HOH
169
3
HOH
HOH
421
A
HOH
170
3
HOH
HOH
422
A
HOH
171
3
HOH
HOH
423
A
HOH
172
3
HOH
HOH
424
A
HOH
173
3
HOH
HOH
425
A
HOH
174
3
HOH
HOH
426
A
HOH
175
3
HOH
HOH
427
A
HOH
177
3
HOH
HOH
428
A
HOH
178
3
HOH
HOH
429
A
HOH
179
3
HOH
HOH
430
A
HOH
180
3
HOH
HOH
431
A
HOH
181
3
HOH
HOH
432
A
HOH
182
3
HOH
HOH
433
A
HOH
183
3
HOH
HOH
434
A
HOH
184
3
HOH
HOH
435
A
HOH
185
3
HOH
HOH
436
A
HOH
186
3
HOH
HOH
437
A
HOH
187
3
HOH
HOH
438
A
HOH
199
3
HOH
HOH
439
A
HOH
200
3
HOH
HOH
440
A
HOH
201
3
HOH
HOH
441
A
HOH
202
3
HOH
HOH
442
A
HOH
204
3
HOH
HOH
443
A
HOH
214
3
HOH
HOH
444
A
HOH
215
3
HOH
HOH
445
A
HOH
216
3
HOH
HOH
446
A
HOH
218
3
HOH
HOH
447
A
HOH
219
3
HOH
HOH
448
A
HOH
220
3
HOH
HOH
449
A
HOH
221
3
HOH
HOH
450
A
HOH
222
3
HOH
HOH
451
A
HOH
223
3
HOH
HOH
452
A
HOH
225
3
HOH
HOH
453
A
HOH
226
3
HOH
HOH
454
A
HOH
227
3
HOH
HOH
455
A
HOH
228
3
HOH
HOH
456
A
HOH
229
3
HOH
HOH
457
A
HOH
230
3
HOH
HOH
458
A
HOH
231
3
HOH
HOH
459
A
HOH
232
3
HOH
HOH
460
A
HOH
233
3
HOH
HOH
461
A
HOH
235
3
HOH
HOH
462
A
HOH
236
3
HOH
HOH
463
A
HOH
237
3
HOH
HOH
464
A
HOH
238
3
HOH
HOH
465
A
HOH
251
3
HOH
HOH
466
A
HOH
256
3
HOH
HOH
467
A
HOH
259
3
HOH
HOH
468
A
HOH
260
3
HOH
HOH
469
A
HOH
261
3
HOH
HOH
470
A
HOH
264
3
HOH
HOH
471
A
HOH
268
3
HOH
HOH
472
A
HOH
279
3
HOH
HOH
473
A
HOH
285
3
HOH
HOH
474
A
HOH
289
3
HOH
HOH
475
A
HOH
293
3
HOH
HOH
476
A
HOH
296
3
HOH
HOH
477
A
HOH
297
3
HOH
HOH
478
A
HOH
299
3
HOH
HOH
479
A
HOH
300
3
HOH
HOH
480
A
HOH
301
3
HOH
HOH
481
A
HOH
303
3
HOH
HOH
482
A
HOH
304
3
HOH
HOH
483
A
HOH
305
3
HOH
HOH
484
A
HOH
306
3
HOH
HOH
485
A
HOH
307
3
HOH
HOH
486
A
HOH
308
3
HOH
HOH
487
A
HOH
309
3
HOH
HOH
488
A
HOH
310
3
HOH
HOH
489
A
HOH
33
3
HOH
HOH
308
B
HOH
34
3
HOH
HOH
309
B
HOH
36
3
HOH
HOH
310
B
HOH
37
3
HOH
HOH
311
B
HOH
39
3
HOH
HOH
312
B
HOH
40
3
HOH
HOH
313
B
HOH
41
3
HOH
HOH
314
B
HOH
42
3
HOH
HOH
315
B
HOH
43
3
HOH
HOH
316
B
HOH
44
3
HOH
HOH
317
B
HOH
45
3
HOH
HOH
318
B
HOH
46
3
HOH
HOH
319
B
HOH
47
3
HOH
HOH
320
B
HOH
48
3
HOH
HOH
321
B
HOH
49
3
HOH
HOH
322
B
HOH
50
3
HOH
HOH
323
B
HOH
51
3
HOH
HOH
324
B
HOH
52
3
HOH
HOH
325
B
HOH
53
3
HOH
HOH
326
B
HOH
54
3
HOH
HOH
327
B
HOH
57
3
HOH
HOH
328
B
HOH
58
3
HOH
HOH
329
B
HOH
60
3
HOH
HOH
330
B
HOH
61
3
HOH
HOH
331
B
HOH
68
3
HOH
HOH
332
B
HOH
69
3
HOH
HOH
333
B
HOH
70
3
HOH
HOH
334
B
HOH
71
3
HOH
HOH
335
B
HOH
91
3
HOH
HOH
336
B
HOH
92
3
HOH
HOH
337
B
HOH
93
3
HOH
HOH
338
B
HOH
94
3
HOH
HOH
339
B
HOH
95
3
HOH
HOH
340
B
HOH
96
3
HOH
HOH
341
B
HOH
97
3
HOH
HOH
342
B
HOH
98
3
HOH
HOH
343
B
HOH
105
3
HOH
HOH
344
B
HOH
114
3
HOH
HOH
345
B
HOH
126
3
HOH
HOH
346
B
HOH
136
3
HOH
HOH
347
B
HOH
137
3
HOH
HOH
348
B
HOH
138
3
HOH
HOH
349
B
HOH
140
3
HOH
HOH
350
B
HOH
144
3
HOH
HOH
351
B
HOH
146
3
HOH
HOH
352
B
HOH
150
3
HOH
HOH
353
B
HOH
153
3
HOH
HOH
354
B
HOH
155
3
HOH
HOH
355
B
HOH
161
3
HOH
HOH
356
B
HOH
168
3
HOH
HOH
357
B
HOH
176
3
HOH
HOH
358
B
HOH
188
3
HOH
HOH
359
B
HOH
189
3
HOH
HOH
360
B
HOH
190
3
HOH
HOH
361
B
HOH
191
3
HOH
HOH
362
B
HOH
192
3
HOH
HOH
363
B
HOH
193
3
HOH
HOH
364
B
HOH
194
3
HOH
HOH
365
B
HOH
195
3
HOH
HOH
366
B
HOH
196
3
HOH
HOH
367
B
HOH
197
3
HOH
HOH
368
B
HOH
198
3
HOH
HOH
369
B
HOH
203
3
HOH
HOH
370
B
HOH
205
3
HOH
HOH
371
B
HOH
206
3
HOH
HOH
372
B
HOH
207
3
HOH
HOH
373
B
HOH
208
3
HOH
HOH
374
B
HOH
209
3
HOH
HOH
375
B
HOH
210
3
HOH
HOH
376
B
HOH
211
3
HOH
HOH
377
B
HOH
212
3
HOH
HOH
378
B
HOH
213
3
HOH
HOH
379
B
HOH
224
3
HOH
HOH
380
B
HOH
239
3
HOH
HOH
381
B
HOH
240
3
HOH
HOH
382
B
HOH
241
3
HOH
HOH
383
B
HOH
242
3
HOH
HOH
384
B
HOH
244
3
HOH
HOH
385
B
HOH
245
3
HOH
HOH
386
B
HOH
246
3
HOH
HOH
387
B
HOH
248
3
HOH
HOH
388
B
HOH
249
3
HOH
HOH
389
B
HOH
250
3
HOH
HOH
390
B
HOH
252
3
HOH
HOH
391
B
HOH
255
3
HOH
HOH
392
B
HOH
257
3
HOH
HOH
393
B
HOH
258
3
HOH
HOH
394
B
HOH
266
3
HOH
HOH
395
B
HOH
270
3
HOH
HOH
396
B
HOH
274
3
HOH
HOH
397
B
HOH
290
3
HOH
HOH
398
B
HOH
295
3
HOH
HOH
399
B
HOH
298
3
HOH
HOH
400
B
HOH
302
3
HOH
HOH
401
B
HOH
311
3
HOH
HOH
402
B
HOH
312
3
HOH
HOH
403
B
n
1
0
A
SER
1
n
2
SER
1
A
GLY
2
n
3
GLY
2
A
PHE
3
n
4
PHE
3
A
ARG
4
n
5
ARG
4
A
LYS
5
n
6
LYS
5
A
MET
6
n
7
MET
6
A
ALA
7
n
8
ALA
7
A
PHE
8
n
9
PHE
8
A
PRO
9
n
10
PRO
9
A
SER
10
n
11
SER
10
A
GLY
11
n
12
GLY
11
A
LYS
12
n
13
LYS
12
A
VAL
13
n
14
VAL
13
A
GLU
14
n
15
GLU
14
A
GLY
15
n
16
GLY
15
A
CYS
16
n
17
CYS
16
A
MET
17
n
18
MET
17
A
VAL
18
n
19
VAL
18
A
GLN
19
n
20
GLN
19
A
VAL
20
n
21
VAL
20
A
THR
21
n
22
THR
21
A
CYS
22
n
23
CYS
22
A
GLY
23
n
24
GLY
23
A
THR
24
n
25
THR
24
A
THR
25
n
26
THR
25
A
THR
26
n
27
THR
26
A
LEU
27
n
28
LEU
27
A
ASN
28
n
29
ASN
28
A
GLY
29
n
30
GLY
29
A
LEU
30
n
31
LEU
30
A
TRP
31
n
32
TRP
31
A
LEU
32
n
33
LEU
32
A
ASP
33
n
34
ASP
33
A
ASP
34
n
35
ASP
34
A
THR
35
n
36
THR
35
A
VAL
36
n
37
VAL
36
A
TYR
37
n
38
TYR
37
A
CYS
38
n
39
CYS
38
A
PRO
39
n
40
PRO
39
A
ARG
40
n
41
ARG
40
A
HIS
41
n
42
HIS
41
A
VAL
42
n
43
VAL
42
A
ILE
43
n
44
ILE
43
A
CYS
44
n
45
CYS
44
A
THR
45
n
46
THR
45
A
ALA
46
n
47
ALA
46
A
GLU
47
n
48
GLU
47
A
ASP
48
n
49
ASP
48
A
MET
49
n
50
MET
49
A
LEU
50
n
51
LEU
50
A
ASN
51
n
52
ASN
51
A
PRO
52
n
53
PRO
52
A
ASN
53
n
54
ASN
53
A
TYR
54
n
55
TYR
54
A
GLU
55
n
56
GLU
55
A
ASP
56
n
57
ASP
56
A
LEU
57
n
58
LEU
57
A
LEU
58
n
59
LEU
58
A
ILE
59
n
60
ILE
59
A
ARG
60
n
61
ARG
60
A
LYS
61
n
62
LYS
61
A
SER
62
n
63
SER
62
A
ASN
63
n
64
ASN
63
A
HIS
64
n
65
HIS
64
A
SER
65
n
66
SER
65
A
PHE
66
n
67
PHE
66
A
LEU
67
n
68
LEU
67
A
VAL
68
n
69
VAL
68
A
GLN
69
n
70
GLN
69
A
ALA
70
n
71
ALA
70
A
GLY
71
n
72
GLY
71
A
ASN
72
n
73
ASN
72
A
VAL
73
n
74
VAL
73
A
GLN
74
n
75
GLN
74
A
LEU
75
n
76
LEU
75
A
ARG
76
n
77
ARG
76
A
VAL
77
n
78
VAL
77
A
ILE
78
n
79
ILE
78
A
GLY
79
n
80
GLY
79
A
HIS
80
n
81
HIS
80
A
SER
81
n
82
SER
81
A
MET
82
n
83
MET
82
A
GLN
83
n
84
GLN
83
A
ASN
84
n
85
ASN
84
A
CYS
85
n
86
CYS
85
A
LEU
86
n
87
LEU
86
A
LEU
87
n
88
LEU
87
A
ARG
88
n
89
ARG
88
A
LEU
89
n
90
LEU
89
A
LYS
90
n
91
LYS
90
A
VAL
91
n
92
VAL
91
A
ASP
92
n
93
ASP
92
A
THR
93
n
94
THR
93
A
SER
94
n
95
SER
94
A
ASN
95
n
96
ASN
95
A
PRO
96
n
97
PRO
96
A
LYS
97
n
98
LYS
97
A
THR
98
n
99
THR
98
A
PRO
99
n
100
PRO
99
A
LYS
100
n
101
LYS
100
A
TYR
101
n
102
TYR
101
A
LYS
102
n
103
LYS
102
A
PHE
103
n
104
PHE
103
A
VAL
104
n
105
VAL
104
A
ARG
105
n
106
ARG
105
A
ILE
106
n
107
ILE
106
A
GLN
107
n
108
GLN
107
A
PRO
108
n
109
PRO
108
A
GLY
109
n
110
GLY
109
A
GLN
110
n
111
GLN
110
A
THR
111
n
112
THR
111
A
PHE
112
n
113
PHE
112
A
SER
113
n
114
SER
113
A
VAL
114
n
115
VAL
114
A
LEU
115
n
116
LEU
115
A
ALA
116
n
117
ALA
116
A
CYS
117
n
118
CYS
117
A
TYR
118
n
119
TYR
118
A
ASN
119
n
120
ASN
119
A
GLY
120
n
121
GLY
120
A
SER
121
n
122
SER
121
A
PRO
122
n
123
PRO
122
A
SER
123
n
124
SER
123
A
GLY
124
n
125
GLY
124
A
VAL
125
n
126
VAL
125
A
TYR
126
n
127
TYR
126
A
GLN
127
n
128
GLN
127
A
CYS
128
n
129
CYS
128
A
ALA
129
n
130
ALA
129
A
MET
130
n
131
MET
130
A
ARG
131
n
132
ARG
131
A
PRO
132
n
133
PRO
132
A
ASN
133
n
134
ASN
133
A
HIS
134
n
135
HIS
134
A
THR
135
n
136
THR
135
A
ILE
136
n
137
ILE
136
A
LYS
137
n
138
LYS
137
A
GLY
138
n
139
GLY
138
A
SER
139
n
140
SER
139
A
PHE
140
n
141
PHE
140
A
LEU
141
n
142
LEU
141
A
ASN
142
n
143
ASN
142
A
GLY
143
n
144
GLY
143
A
SER
144
n
145
SER
144
A
CYS
145
n
146
CYS
145
A
GLY
146
n
147
GLY
146
A
SER
147
n
148
SER
147
A
VAL
148
n
149
VAL
148
A
GLY
149
n
150
GLY
149
A
PHE
150
n
151
PHE
150
A
ASN
151
n
152
ASN
151
A
ILE
152
n
153
ILE
152
A
ASP
153
n
154
ASP
153
A
TYR
154
n
155
TYR
154
A
ASP
155
n
156
ASP
155
A
CYS
156
n
157
CYS
156
A
VAL
157
n
158
VAL
157
A
SER
158
n
159
SER
158
A
PHE
159
n
160
PHE
159
A
CYS
160
n
161
CYS
160
A
TYR
161
n
162
TYR
161
A
MET
162
n
163
MET
162
A
HIS
163
n
164
HIS
163
A
HIS
164
n
165
HIS
164
A
MET
165
n
166
MET
165
A
GLU
166
n
167
GLU
166
A
LEU
167
n
168
LEU
167
A
PRO
168
n
169
PRO
168
A
THR
169
n
170
THR
169
A
GLY
170
n
171
GLY
170
A
VAL
171
n
172
VAL
171
A
HIS
172
n
173
HIS
172
A
ALA
173
n
174
ALA
173
A
GLY
174
n
175
GLY
174
A
THR
175
n
176
THR
175
A
ASP
176
n
177
ASP
176
A
LEU
177
n
178
LEU
177
A
GLU
178
n
179
GLU
178
A
GLY
179
n
180
GLY
179
A
LYS
180
n
181
LYS
180
A
PHE
181
n
182
PHE
181
A
TYR
182
n
183
TYR
182
A
GLY
183
n
184
GLY
183
A
PRO
184
n
185
PRO
184
A
PHE
185
n
186
PHE
185
A
VAL
186
n
187
VAL
186
A
ASP
187
n
188
ASP
187
A
ARG
188
n
189
ARG
188
A
GLN
189
n
190
GLN
189
A
THR
190
n
191
THR
190
A
ALA
191
n
192
ALA
191
A
GLN
192
n
193
GLN
192
A
ALA
193
n
194
ALA
193
A
ALA
194
n
195
ALA
194
A
GLY
195
n
196
GLY
195
A
THR
196
n
197
THR
196
A
ASP
197
n
198
ASP
197
A
THR
198
n
199
THR
198
A
THR
199
n
200
THR
199
A
ILE
200
n
201
ILE
200
A
THR
201
n
202
THR
201
A
LEU
202
n
203
LEU
202
A
ASN
203
n
204
ASN
203
A
VAL
204
n
205
VAL
204
A
LEU
205
n
206
LEU
205
A
ALA
206
n
207
ALA
206
A
TRP
207
n
208
TRP
207
A
LEU
208
n
209
LEU
208
A
TYR
209
n
210
TYR
209
A
ALA
210
n
211
ALA
210
A
ALA
211
n
212
ALA
211
A
VAL
212
n
213
VAL
212
A
ILE
213
n
214
ILE
213
A
ASN
214
n
215
ASN
214
A
GLY
215
n
216
GLY
215
A
ASP
216
n
217
ASP
216
A
ARG
217
n
218
ARG
217
A
TRP
218
n
219
TRP
218
A
PHE
219
n
220
PHE
219
A
LEU
220
n
221
LEU
220
A
ASN
221
n
222
ASN
221
A
ARG
222
n
223
ARG
222
A
PHE
223
n
224
PHE
223
A
THR
224
n
225
THR
224
A
THR
225
n
226
THR
225
A
THR
226
n
227
THR
226
A
LEU
227
n
228
LEU
227
A
ASN
228
n
229
ASN
228
A
ASP
229
n
230
ASP
229
A
PHE
230
n
231
PHE
230
A
ASN
231
n
232
ASN
231
A
LEU
232
n
233
LEU
232
A
VAL
233
n
234
VAL
233
A
ALA
234
n
235
ALA
234
A
MET
235
n
236
MET
235
A
LYS
236
n
237
LYS
236
A
TYR
237
n
238
TYR
237
A
ASN
238
n
239
ASN
238
A
TYR
239
n
240
TYR
239
A
GLU
240
n
241
GLU
240
A
PRO
241
n
242
PRO
241
A
LEU
242
n
243
LEU
242
A
THR
243
n
244
THR
243
A
GLN
244
n
245
GLN
244
A
ASP
245
n
246
ASP
245
A
HIS
246
n
247
HIS
246
A
VAL
247
n
248
VAL
247
A
ASP
248
n
249
ASP
248
A
ILE
249
n
250
ILE
249
A
LEU
250
n
251
LEU
250
A
GLY
251
n
252
GLY
251
A
PRO
252
n
253
PRO
252
A
LEU
253
n
254
LEU
253
A
SER
254
n
255
SER
254
A
ALA
255
n
256
ALA
255
A
GLN
256
n
257
GLN
256
A
THR
257
n
258
THR
257
A
GLY
258
n
259
GLY
258
A
ILE
259
n
260
ILE
259
A
ALA
260
n
261
ALA
260
A
VAL
261
n
262
VAL
261
A
LEU
262
n
263
LEU
262
A
ASP
263
n
264
ASP
263
A
MET
264
n
265
MET
264
A
CYS
265
n
266
CYS
265
A
ALA
266
n
267
ALA
266
A
ALA
267
n
268
ALA
267
A
LEU
268
n
269
LEU
268
A
LYS
269
n
270
LYS
269
A
GLU
270
n
271
GLU
270
A
LEU
271
n
272
LEU
271
A
LEU
272
n
273
LEU
272
A
GLN
273
n
274
GLN
273
A
ASN
274
n
275
ASN
274
A
GLY
275
n
276
GLY
275
A
MET
276
n
277
MET
276
A
ASN
277
n
278
ASN
277
A
GLY
278
n
279
GLY
278
A
ARG
279
n
280
ARG
279
A
THR
280
n
281
THR
280
A
ILE
281
n
282
ILE
281
A
LEU
282
n
283
LEU
282
A
GLY
283
n
284
GLY
283
A
SER
284
n
285
SER
284
A
THR
285
n
286
THR
285
A
ILE
286
n
287
ILE
286
A
LEU
287
n
288
LEU
287
A
GLU
288
n
289
GLU
288
A
ASP
289
n
290
ASP
289
A
GLU
290
n
291
GLU
290
A
PHE
291
n
292
PHE
291
A
THR
292
n
293
THR
292
A
PRO
293
n
294
PRO
293
A
PHE
294
n
295
PHE
294
A
ASP
295
n
296
ASP
295
A
VAL
296
n
297
VAL
296
A
VAL
297
n
298
VAL
297
A
ARG
298
n
299
ARG
298
A
GLN
299
n
300
GLN
299
A
CYS
300
n
301
CYS
300
A
SER
301
n
302
SER
301
A
GLY
302
n
303
GLY
302
A
VAL
303
n
304
VAL
303
A
THR
304
n
305
THR
304
A
n
306
305
A
n
307
306
A
n
1
0
B
SER
1
n
2
SER
1
B
GLY
2
n
3
GLY
2
B
PHE
3
n
4
PHE
3
B
ARG
4
n
5
ARG
4
B
LYS
5
n
6
LYS
5
B
MET
6
n
7
MET
6
B
ALA
7
n
8
ALA
7
B
PHE
8
n
9
PHE
8
B
PRO
9
n
10
PRO
9
B
SER
10
n
11
SER
10
B
GLY
11
n
12
GLY
11
B
LYS
12
n
13
LYS
12
B
VAL
13
n
14
VAL
13
B
GLU
14
n
15
GLU
14
B
GLY
15
n
16
GLY
15
B
CYS
16
n
17
CYS
16
B
MET
17
n
18
MET
17
B
VAL
18
n
19
VAL
18
B
GLN
19
n
20
GLN
19
B
VAL
20
n
21
VAL
20
B
THR
21
n
22
THR
21
B
CYS
22
n
23
CYS
22
B
GLY
23
n
24
GLY
23
B
THR
24
n
25
THR
24
B
THR
25
n
26
THR
25
B
THR
26
n
27
THR
26
B
LEU
27
n
28
LEU
27
B
ASN
28
n
29
ASN
28
B
GLY
29
n
30
GLY
29
B
LEU
30
n
31
LEU
30
B
TRP
31
n
32
TRP
31
B
LEU
32
n
33
LEU
32
B
ASP
33
n
34
ASP
33
B
ASP
34
n
35
ASP
34
B
THR
35
n
36
THR
35
B
VAL
36
n
37
VAL
36
B
TYR
37
n
38
TYR
37
B
CYS
38
n
39
CYS
38
B
PRO
39
n
40
PRO
39
B
ARG
40
n
41
ARG
40
B
HIS
41
n
42
HIS
41
B
VAL
42
n
43
VAL
42
B
ILE
43
n
44
ILE
43
B
CYS
44
n
45
CYS
44
B
THR
45
n
46
THR
45
B
ALA
46
n
47
ALA
46
B
GLU
47
n
48
GLU
47
B
ASP
48
n
49
ASP
48
B
MET
49
n
50
MET
49
B
LEU
50
n
51
LEU
50
B
ASN
51
n
52
ASN
51
B
PRO
52
n
53
PRO
52
B
ASN
53
n
54
ASN
53
B
TYR
54
n
55
TYR
54
B
GLU
55
n
56
GLU
55
B
ASP
56
n
57
ASP
56
B
LEU
57
n
58
LEU
57
B
LEU
58
n
59
LEU
58
B
ILE
59
n
60
ILE
59
B
ARG
60
n
61
ARG
60
B
LYS
61
n
62
LYS
61
B
SER
62
n
63
SER
62
B
ASN
63
n
64
ASN
63
B
HIS
64
n
65
HIS
64
B
SER
65
n
66
SER
65
B
PHE
66
n
67
PHE
66
B
LEU
67
n
68
LEU
67
B
VAL
68
n
69
VAL
68
B
GLN
69
n
70
GLN
69
B
ALA
70
n
71
ALA
70
B
GLY
71
n
72
GLY
71
B
ASN
72
n
73
ASN
72
B
VAL
73
n
74
VAL
73
B
GLN
74
n
75
GLN
74
B
LEU
75
n
76
LEU
75
B
ARG
76
n
77
ARG
76
B
VAL
77
n
78
VAL
77
B
ILE
78
n
79
ILE
78
B
GLY
79
n
80
GLY
79
B
HIS
80
n
81
HIS
80
B
SER
81
n
82
SER
81
B
MET
82
n
83
MET
82
B
GLN
83
n
84
GLN
83
B
ASN
84
n
85
ASN
84
B
CYS
85
n
86
CYS
85
B
LEU
86
n
87
LEU
86
B
LEU
87
n
88
LEU
87
B
ARG
88
n
89
ARG
88
B
LEU
89
n
90
LEU
89
B
LYS
90
n
91
LYS
90
B
VAL
91
n
92
VAL
91
B
ASP
92
n
93
ASP
92
B
THR
93
n
94
THR
93
B
SER
94
n
95
SER
94
B
ASN
95
n
96
ASN
95
B
PRO
96
n
97
PRO
96
B
LYS
97
n
98
LYS
97
B
THR
98
n
99
THR
98
B
PRO
99
n
100
PRO
99
B
LYS
100
n
101
LYS
100
B
TYR
101
n
102
TYR
101
B
LYS
102
n
103
LYS
102
B
PHE
103
n
104
PHE
103
B
VAL
104
n
105
VAL
104
B
ARG
105
n
106
ARG
105
B
ILE
106
n
107
ILE
106
B
GLN
107
n
108
GLN
107
B
PRO
108
n
109
PRO
108
B
GLY
109
n
110
GLY
109
B
GLN
110
n
111
GLN
110
B
THR
111
n
112
THR
111
B
PHE
112
n
113
PHE
112
B
SER
113
n
114
SER
113
B
VAL
114
n
115
VAL
114
B
LEU
115
n
116
LEU
115
B
ALA
116
n
117
ALA
116
B
CYS
117
n
118
CYS
117
B
TYR
118
n
119
TYR
118
B
ASN
119
n
120
ASN
119
B
GLY
120
n
121
GLY
120
B
SER
121
n
122
SER
121
B
PRO
122
n
123
PRO
122
B
SER
123
n
124
SER
123
B
GLY
124
n
125
GLY
124
B
VAL
125
n
126
VAL
125
B
TYR
126
n
127
TYR
126
B
GLN
127
n
128
GLN
127
B
CYS
128
n
129
CYS
128
B
ALA
129
n
130
ALA
129
B
MET
130
n
131
MET
130
B
ARG
131
n
132
ARG
131
B
PRO
132
n
133
PRO
132
B
ASN
133
n
134
ASN
133
B
HIS
134
n
135
HIS
134
B
THR
135
n
136
THR
135
B
ILE
136
n
137
ILE
136
B
LYS
137
n
138
LYS
137
B
GLY
138
n
139
GLY
138
B
SER
139
n
140
SER
139
B
PHE
140
n
141
PHE
140
B
LEU
141
n
142
LEU
141
B
ASN
142
n
143
ASN
142
B
GLY
143
n
144
GLY
143
B
SER
144
n
145
SER
144
B
CYS
145
n
146
CYS
145
B
GLY
146
n
147
GLY
146
B
SER
147
n
148
SER
147
B
VAL
148
n
149
VAL
148
B
GLY
149
n
150
GLY
149
B
PHE
150
n
151
PHE
150
B
ASN
151
n
152
ASN
151
B
ILE
152
n
153
ILE
152
B
ASP
153
n
154
ASP
153
B
TYR
154
n
155
TYR
154
B
ASP
155
n
156
ASP
155
B
CYS
156
n
157
CYS
156
B
VAL
157
n
158
VAL
157
B
SER
158
n
159
SER
158
B
PHE
159
n
160
PHE
159
B
CYS
160
n
161
CYS
160
B
TYR
161
n
162
TYR
161
B
MET
162
n
163
MET
162
B
HIS
163
n
164
HIS
163
B
HIS
164
n
165
HIS
164
B
MET
165
n
166
MET
165
B
GLU
166
n
167
GLU
166
B
LEU
167
n
168
LEU
167
B
PRO
168
n
169
PRO
168
B
THR
169
n
170
THR
169
B
GLY
170
n
171
GLY
170
B
VAL
171
n
172
VAL
171
B
HIS
172
n
173
HIS
172
B
ALA
173
n
174
ALA
173
B
GLY
174
n
175
GLY
174
B
THR
175
n
176
THR
175
B
ASP
176
n
177
ASP
176
B
LEU
177
n
178
LEU
177
B
GLU
178
n
179
GLU
178
B
GLY
179
n
180
GLY
179
B
LYS
180
n
181
LYS
180
B
PHE
181
n
182
PHE
181
B
TYR
182
n
183
TYR
182
B
GLY
183
n
184
GLY
183
B
PRO
184
n
185
PRO
184
B
PHE
185
n
186
PHE
185
B
VAL
186
n
187
VAL
186
B
ASP
187
n
188
ASP
187
B
ARG
188
n
189
ARG
188
B
GLN
189
n
190
GLN
189
B
THR
190
n
191
THR
190
B
ALA
191
n
192
ALA
191
B
GLN
192
n
193
GLN
192
B
ALA
193
n
194
ALA
193
B
ALA
194
n
195
ALA
194
B
GLY
195
n
196
GLY
195
B
THR
196
n
197
THR
196
B
ASP
197
n
198
ASP
197
B
THR
198
n
199
THR
198
B
THR
199
n
200
THR
199
B
ILE
200
n
201
ILE
200
B
THR
201
n
202
THR
201
B
LEU
202
n
203
LEU
202
B
ASN
203
n
204
ASN
203
B
VAL
204
n
205
VAL
204
B
LEU
205
n
206
LEU
205
B
ALA
206
n
207
ALA
206
B
TRP
207
n
208
TRP
207
B
LEU
208
n
209
LEU
208
B
TYR
209
n
210
TYR
209
B
ALA
210
n
211
ALA
210
B
ALA
211
n
212
ALA
211
B
VAL
212
n
213
VAL
212
B
ILE
213
n
214
ILE
213
B
ASN
214
n
215
ASN
214
B
GLY
215
n
216
GLY
215
B
ASP
216
n
217
ASP
216
B
ARG
217
n
218
ARG
217
B
TRP
218
n
219
TRP
218
B
PHE
219
n
220
PHE
219
B
LEU
220
n
221
LEU
220
B
ASN
221
n
222
ASN
221
B
ARG
222
n
223
ARG
222
B
PHE
223
n
224
PHE
223
B
THR
224
n
225
THR
224
B
THR
225
n
226
THR
225
B
THR
226
n
227
THR
226
B
LEU
227
n
228
LEU
227
B
ASN
228
n
229
ASN
228
B
ASP
229
n
230
ASP
229
B
PHE
230
n
231
PHE
230
B
ASN
231
n
232
ASN
231
B
LEU
232
n
233
LEU
232
B
VAL
233
n
234
VAL
233
B
ALA
234
n
235
ALA
234
B
MET
235
n
236
MET
235
B
LYS
236
n
237
LYS
236
B
TYR
237
n
238
TYR
237
B
ASN
238
n
239
ASN
238
B
TYR
239
n
240
TYR
239
B
GLU
240
n
241
GLU
240
B
PRO
241
n
242
PRO
241
B
LEU
242
n
243
LEU
242
B
THR
243
n
244
THR
243
B
GLN
244
n
245
GLN
244
B
ASP
245
n
246
ASP
245
B
HIS
246
n
247
HIS
246
B
VAL
247
n
248
VAL
247
B
ASP
248
n
249
ASP
248
B
ILE
249
n
250
ILE
249
B
LEU
250
n
251
LEU
250
B
GLY
251
n
252
GLY
251
B
PRO
252
n
253
PRO
252
B
LEU
253
n
254
LEU
253
B
SER
254
n
255
SER
254
B
ALA
255
n
256
ALA
255
B
GLN
256
n
257
GLN
256
B
THR
257
n
258
THR
257
B
GLY
258
n
259
GLY
258
B
ILE
259
n
260
ILE
259
B
ALA
260
n
261
ALA
260
B
VAL
261
n
262
VAL
261
B
LEU
262
n
263
LEU
262
B
ASP
263
n
264
ASP
263
B
MET
264
n
265
MET
264
B
CYS
265
n
266
CYS
265
B
ALA
266
n
267
ALA
266
B
ALA
267
n
268
ALA
267
B
LEU
268
n
269
LEU
268
B
LYS
269
n
270
LYS
269
B
GLU
270
n
271
GLU
270
B
LEU
271
n
272
LEU
271
B
LEU
272
n
273
LEU
272
B
GLN
273
n
274
GLN
273
B
ASN
274
n
275
ASN
274
B
GLY
275
n
276
GLY
275
B
MET
276
n
277
MET
276
B
ASN
277
n
278
ASN
277
B
GLY
278
n
279
GLY
278
B
ARG
279
n
280
ARG
279
B
THR
280
n
281
THR
280
B
ILE
281
n
282
ILE
281
B
LEU
282
n
283
LEU
282
B
GLY
283
n
284
GLY
283
B
SER
284
n
285
SER
284
B
THR
285
n
286
THR
285
B
ILE
286
n
287
ILE
286
B
LEU
287
n
288
LEU
287
B
GLU
288
n
289
GLU
288
B
ASP
289
n
290
ASP
289
B
GLU
290
n
291
GLU
290
B
PHE
291
n
292
PHE
291
B
THR
292
n
293
THR
292
B
PRO
293
n
294
PRO
293
B
PHE
294
n
295
PHE
294
B
ASP
295
n
296
ASP
295
B
VAL
296
n
297
VAL
296
B
VAL
297
n
298
VAL
297
B
ARG
298
n
299
ARG
298
B
GLN
299
n
300
GLN
299
B
CYS
300
n
301
CYS
300
B
n
302
301
B
n
303
302
B
n
304
303
B
n
305
304
B
n
306
305
B
n
307
306
B
author_defined_assembly
2
dimeric
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
O
VAL
73
A
O
VAL
74
A
N
ALA
70
A
N
ALA
71
A
O
LEU
67
A
O
LEU
68
A
N
THR
21
A
N
THR
22
A
N
VAL
20
A
N
VAL
21
A
O
LEU
27
A
O
LEU
28
A
N
LEU
30
A
N
LEU
31
A
O
TYR
37
A
O
TYR
38
A
N
VAL
36
A
N
VAL
37
A
O
LEU
89
A
O
LEU
90
A
O
LEU
86
A
O
LEU
87
A
N
GLN
83
A
N
GLN
84
A
N
LYS
102
A
N
LYS
103
A
O
PHE
159
A
O
PHE
160
A
O
SER
158
A
O
SER
159
A
N
ASN
151
A
N
ASN
152
A
O
PHE
150
A
O
PHE
151
A
N
SER
113
A
N
SER
114
A
N
VAL
114
A
N
VAL
115
A
O
TYR
126
A
O
TYR
127
A
N
LYS
102
A
N
LYS
103
A
O
PHE
159
A
O
PHE
160
A
N
MET
165
A
N
MET
166
A
O
ALA
173
A
O
ALA
174
B
O
VAL
73
B
O
VAL
74
B
N
ALA
70
B
N
ALA
71
B
O
LEU
67
B
O
LEU
68
B
N
THR
21
B
N
THR
22
B
N
VAL
18
B
N
VAL
19
B
O
GLY
29
B
O
GLY
30
B
N
LEU
30
B
N
LEU
31
B
O
TYR
37
B
O
TYR
38
B
N
CYS
38
B
N
CYS
39
B
O
LEU
87
B
O
LEU
88
B
O
LYS
90
B
O
LYS
91
B
N
ILE
78
B
N
ILE
79
B
N
LYS
102
B
N
LYS
103
B
O
VAL
157
B
O
VAL
158
B
O
SER
158
B
O
SER
159
B
N
ASN
151
B
N
ASN
152
B
O
PHE
150
B
O
PHE
151
B
N
SER
113
B
N
SER
114
B
N
VAL
114
B
N
VAL
115
B
O
TYR
126
B
O
TYR
127
B
N
LYS
102
B
N
LYS
103
B
O
VAL
157
B
O
VAL
158
B
N
MET
165
B
N
MET
166
B
O
ALA
173
B
O
ALA
174
1
A
ALA
0
A
ALA
1
1
Y
1
A
PHE
305
A
PHE
306
1
Y
1
A
GLN
306
A
GLN
307
1
Y
1
B
ALA
0
B
ALA
1
1
Y
1
B
SER
301
B
SER
302
1
Y
1
B
GLY
302
B
GLY
303
1
Y
1
B
VAL
303
B
VAL
304
1
Y
1
B
THR
304
B
THR
305
1
Y
1
B
PHE
305
B
PHE
306
1
Y
1
B
GLN
306
B
GLN
307
1
Y
1
A
A
O
O
HOH
HOH
372
374
2.18
1
14.15
2.30
115.30
129.45
A
A
A
CA
CB
CG
LEU
LEU
LEU
67
67
67
N
1
6.64
1.10
114.20
120.84
A
A
A
CA
CB
SG
CYS
CYS
CYS
128
128
128
B
B
B
N
1
14.21
2.30
115.30
129.51
A
A
A
CA
CB
CG
LEU
LEU
LEU
167
167
167
N
1
-4.68
0.50
120.30
115.62
B
B
B
NE
CZ
NH1
ARG
ARG
ARG
4
4
4
N
1
-10.29
1.70
111.00
100.71
B
B
B
CB
CG
CD1
LEU
LEU
LEU
87
87
87
N
1
B
B
C
O
THR
THR
224
224
0.118
0.019
1.229
1.347
N
1
A
ASP
33
49.00
-129.94
1
A
ASN
51
-159.18
62.25
1
A
ASN
84
47.69
-121.36
1
A
TYR
154
65.24
-108.03
1
A
PRO
184
-82.97
35.10
1
A
THR
285
-81.59
-158.35
1
A
ILE
286
53.94
130.83
1
A
ILE
286
90.83
130.83
1
B
ASP
33
46.22
-122.18
1
B
ASN
84
50.52
-121.34
1
B
TYR
154
54.85
-71.14
1
B
PRO
184
-89.93
38.01
1
B
GLN
192
-178.18
141.71
1
B
ASN
214
-60.17
0.21
1
B
ARG
217
-149.37
-5.81
1
B
ARG
279
-63.82
-179.16
1
B
ARG
279
-53.93
178.53
1
B
ILE
286
56.01
139.36
47.452
3.01
0.00
0.00
-1.27
0.00
-1.74
0.963
0.931
0.24889
0.17467
0.1782
2.30
40.00
1684
31565
5.1
99.08
14.506
0.174
RANDOM
1
THROUGHOUT
0
MOLECULAR REPLACEMENT
0.283
0.237
0.80
0.80
1.20
pdb entry 2A5A
MAXIMUM LIKELIHOOD
BABINET MODEL WITH MASK
2.30
40.00
278
5172
92
0
4802
0.021
0.022
5009
1.944
1.966
6798
7.517
5.000
612
37.716
23.913
230
18.855
15.000
825
22.179
15.000
32
0.129
0.200
758
0.008
0.020
3833
0.254
0.300
2347
0.333
0.500
3428
0.236
0.500
479
0.292
0.300
46
0.284
0.500
12
1.602
2.000
3113
2.529
3.000
4946
1.616
2.000
2123
2.285
3.000
1852
0.346
0.26
2.363
110
2153
20
92.90
2.30
50.00
2A5K
33305
0
0
1
99.2
2.30
2.38
95.5
refinement
REFMAC
5.2.0005
data reduction
DENZO
data scaling
SCALEPACK
phasing
MOLREP
Crystal structures of SARS coronavirus main peptidase inhibited by an aza-peptide epoxide in space group P212121
1
N
N
1
N
N
2
N
N
2
N
N
3
N
N
3
N
N
A
SER
10
A
SER
11
HELX_P
A
GLY
15
A
GLY
16
1
1
6
A
HIS
41
A
HIS
42
HELX_P
A
CYS
44
A
CYS
45
5
2
4
A
ASN
53
A
ASN
54
HELX_P
A
ARG
60
A
ARG
61
1
3
8
A
SER
62
A
SER
63
HELX_P
A
PHE
66
A
PHE
67
5
4
5
A
ILE
200
A
ILE
201
HELX_P
A
ASN
214
A
ASN
215
1
5
15
A
THR
226
A
THR
227
HELX_P
A
TYR
237
A
TYR
238
1
6
12
A
THR
243
A
THR
244
HELX_P
A
LEU
250
A
LEU
251
1
7
8
A
LEU
250
A
LEU
251
HELX_P
A
GLY
258
A
GLY
259
1
8
9
A
ALA
260
A
ALA
261
HELX_P
A
GLY
275
A
GLY
276
1
9
16
A
THR
292
A
THR
293
HELX_P
A
GLY
302
A
GLY
303
1
10
11
B
SER
10
B
SER
11
HELX_P
B
GLY
15
B
GLY
16
1
11
6
B
HIS
41
B
HIS
42
HELX_P
B
CYS
44
B
CYS
45
5
12
4
B
THR
45
B
THR
46
HELX_P
B
MET
49
B
MET
50
5
13
5
B
ASN
53
B
ASN
54
HELX_P
B
LYS
61
B
LYS
62
1
14
9
B
SER
62
B
SER
63
HELX_P
B
PHE
66
B
PHE
67
5
15
5
B
ILE
200
B
ILE
201
HELX_P
B
GLY
215
B
GLY
216
1
16
16
B
THR
226
B
THR
227
HELX_P
B
TYR
237
B
TYR
238
1
17
12
B
THR
243
B
THR
244
HELX_P
B
LEU
250
B
LEU
251
1
18
8
B
LEU
250
B
LEU
251
HELX_P
B
GLY
258
B
GLY
259
1
19
9
B
ALA
260
B
ALA
261
HELX_P
B
GLY
275
B
GLY
276
1
20
16
B
THR
292
B
THR
293
HELX_P
B
GLN
299
B
GLN
300
1
21
8
covale
2.085
none
A
CYS
145
A
SG
CYS
146
1_555
A
AZP
307
C
CBM
AZP
1_555
covale
2.053
none
B
CYS
145
B
SG
CYS
146
1_555
B
AZP
307
D
CBM
AZP
1_555
HYDROLASE
cysteine peptidase, 3C-like, N-finger, chymotrypsin-like fold, long loop, alpha-helical domain, dimer, catalytic dyad, specificity pockets, aza-peptide epoxide, substrate-like inhibitor, C-S covalent bond, epoxide stereochemistry, HYDROLASE
R1AB_CVHSA
UNP
1
3241
P59641
SGFRKMAFPSGKVEGCMVQVTCGTTTLNGLWLDDTVYCPRHVICTAEDMLNPNYEDLLIRKSNHSFLVQAGNVQLRVIGH
SMQNCLLRLKVDTSNPKTPKYKFVRIQPGQTFSVLACYNGSPSGVYQCAMRPNHTIKGSFLNGSCGSVGFNIDYDCVSFC
YMHHMELPTGVHAGTDLEGKFYGPFVDRQTAQAAGTDTTITLNVLAWLYAAVINGDRWFLNRFTTTLNDFNLVAMKYNYE
PLTQDHVDILGPLSAQTGIAVLDMCAALKELLQNGMNGRTILGSTILEDEFTPFDVVRQCSGVTFQ
3241
3546
2A5K
1
306
P59641
A
1
2
307
3241
3546
2A5K
1
306
P59641
B
1
2
307
1
expression tag
ALA
0
2A5K
A
P59641
UNP
1
2
expression tag
ALA
0
2A5K
B
P59641
UNP
1
7
5
3
7
5
3
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
parallel
anti-parallel
anti-parallel
anti-parallel
parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
parallel
anti-parallel
anti-parallel
anti-parallel
parallel
anti-parallel
A
VAL
73
A
VAL
74
A
LEU
75
A
LEU
76
A
LEU
67
A
LEU
68
A
ALA
70
A
ALA
71
A
MET
17
A
MET
18
A
CYS
22
A
CYS
23
A
THR
25
A
THR
26
A
LEU
32
A
LEU
33
A
THR
35
A
THR
36
A
PRO
39
A
PRO
40
A
LEU
86
A
LEU
87
A
VAL
91
A
VAL
92
A
VAL
77
A
VAL
78
A
GLN
83
A
GLN
84
A
TYR
101
A
TYR
102
A
PHE
103
A
PHE
104
A
CYS
156
A
CYS
157
A
GLU
166
A
GLU
167
A
VAL
148
A
VAL
149
A
ASP
153
A
ASP
154
A
THR
111
A
THR
112
A
TYR
118
A
TYR
119
A
SER
121
A
SER
122
A
ALA
129
A
ALA
130
A
TYR
101
A
TYR
102
A
PHE
103
A
PHE
104
A
CYS
156
A
CYS
157
A
GLU
166
A
GLU
167
A
HIS
172
A
HIS
173
A
THR
175
A
THR
176
B
VAL
73
B
VAL
74
B
LEU
75
B
LEU
76
B
LEU
67
B
LEU
68
B
ALA
70
B
ALA
71
B
MET
17
B
MET
18
B
CYS
22
B
CYS
23
B
THR
25
B
THR
26
B
LEU
32
B
LEU
33
B
THR
35
B
THR
36
B
PRO
39
B
PRO
40
B
LEU
86
B
LEU
87
B
VAL
91
B
VAL
92
B
VAL
77
B
VAL
78
B
GLN
83
B
GLN
84
B
TYR
101
B
TYR
102
B
PHE
103
B
PHE
104
B
CYS
156
B
CYS
157
B
GLU
166
B
GLU
167
B
VAL
148
B
VAL
149
B
ASP
153
B
ASP
154
B
THR
111
B
THR
112
B
TYR
118
B
TYR
119
B
SER
121
B
SER
122
B
ALA
129
B
ALA
130
B
TYR
101
B
TYR
102
B
PHE
103
B
PHE
104
B
CYS
156
B
CYS
157
B
GLU
166
B
GLU
167
B
HIS
172
B
HIS
173
B
THR
175
B
THR
176
BINDING SITE FOR RESIDUE AZP A 307
A
AZP
307
Software
26
BINDING SITE FOR RESIDUE AZP B 307
B
AZP
307
Software
21
A
THR
25
A
THR
26
26
1_555
A
HIS
41
A
HIS
42
26
1_555
A
MET
49
A
MET
50
26
1_555
A
TYR
54
A
TYR
55
26
1_555
A
PHE
140
A
PHE
141
26
1_555
A
LEU
141
A
LEU
142
26
1_555
A
ASN
142
A
ASN
143
26
1_555
A
GLY
143
A
GLY
144
26
1_555
A
SER
144
A
SER
145
26
1_555
A
CYS
145
A
CYS
146
26
1_555
A
HIS
163
A
HIS
164
26
1_555
A
HIS
164
A
HIS
165
26
1_555
A
MET
165
A
MET
166
26
1_555
A
GLU
166
A
GLU
167
26
1_555
A
LEU
167
A
LEU
168
26
1_555
A
HIS
172
A
HIS
173
26
1_555
A
PHE
185
A
PHE
186
26
1_555
A
ASP
187
A
ASP
188
26
1_555
A
ARG
188
A
ARG
189
26
1_555
A
GLN
189
A
GLN
190
26
1_555
A
THR
190
A
THR
191
26
1_555
A
GLN
192
A
GLN
193
26
1_555
A
LYS
236
A
LYS
237
26
3_745
A
HOH
328
E
HOH
26
1_555
A
HOH
348
E
HOH
26
1_555
A
HOH
397
E
HOH
26
1_555
B
THR
25
B
THR
26
21
1_555
B
HIS
41
B
HIS
42
21
1_555
B
MET
49
B
MET
50
21
1_555
B
TYR
54
B
TYR
55
21
1_555
B
PHE
140
B
PHE
141
21
1_555
B
LEU
141
B
LEU
142
21
1_555
B
ASN
142
B
ASN
143
21
1_555
B
GLY
143
B
GLY
144
21
1_555
B
SER
144
B
SER
145
21
1_555
B
CYS
145
B
CYS
146
21
1_555
B
HIS
163
B
HIS
164
21
1_555
B
HIS
164
B
HIS
165
21
1_555
B
MET
165
B
MET
166
21
1_555
B
GLU
166
B
GLU
167
21
1_555
B
PRO
168
B
PRO
169
21
1_555
B
HIS
172
B
HIS
173
21
1_555
B
ASP
187
B
ASP
188
21
1_555
B
ARG
188
B
ARG
189
21
1_555
B
GLN
189
B
GLN
190
21
1_555
B
THR
190
B
THR
191
21
1_555
B
ALA
191
B
ALA
192
21
1_555
19
P 21 21 21