0.020104
0.000000
0.000000
0.000000
0.017280
0.000000
0.000000
0.000000
0.013611
0.00000
0.00000
0.00000
Wilmouth, R.C.
Edman, K.
Neutze, R.
Wright, P.A.
Clifton, I.J.
Schneider, T.R.
Schofield, C.J.
Hajdu, J.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
4
90.00
90.00
90.00
49.740
57.870
73.470
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
Ca 2
40.078
CALCIUM ION
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
O4 S -2
96.063
SULFATE ION
non-polymer
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
CA
N
75
N
N
N
76
R
C
N
77
N
C
N
78
N
O
N
79
N
C
N
80
N
S
N
81
N
O
N
82
N
H
N
83
N
H
N
84
N
H
N
85
N
H
N
86
N
H
N
87
N
H
N
88
N
H
N
89
N
N
N
90
S
C
N
91
N
C
N
92
N
O
N
93
N
C
N
94
N
C
N
95
N
C
N
96
N
O
N
97
N
N
N
98
N
O
N
99
N
H
N
100
N
H
N
101
N
H
N
102
N
H
N
103
N
H
N
104
N
H
N
105
N
H
N
106
N
H
N
107
N
H
N
108
N
H
N
109
N
N
N
110
S
C
N
111
N
C
N
112
N
O
N
113
N
C
N
114
N
C
N
115
N
C
N
116
N
O
N
117
N
O
N
118
N
O
N
119
N
H
N
120
N
H
N
121
N
H
N
122
N
H
N
123
N
H
N
124
N
H
N
125
N
H
N
126
N
H
N
127
N
H
N
128
N
N
N
129
N
C
N
130
N
C
N
131
N
O
N
132
N
O
N
133
N
H
N
134
N
H
N
135
N
H
N
136
N
H
N
137
N
H
N
138
N
N
N
139
S
C
N
140
N
C
N
141
N
O
N
142
N
C
Y
143
N
C
Y
144
N
N
Y
145
N
C
Y
146
N
C
Y
147
N
N
N
148
N
O
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
O
N
160
N
H
N
161
N
H
N
162
N
N
N
163
S
C
N
164
N
C
N
165
N
O
N
166
S
C
N
167
N
C
N
168
N
C
N
169
N
C
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
H
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
N
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
N
N
215
N
O
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
N
228
N
H
N
229
N
H
N
230
N
H
N
231
N
N
N
232
S
C
N
233
N
C
N
234
N
O
N
235
N
C
N
236
N
C
N
237
N
S
N
238
N
C
N
239
N
O
N
240
N
H
N
241
N
H
N
242
N
H
N
243
N
H
N
244
N
H
N
245
N
H
N
246
N
H
N
247
N
H
N
248
N
H
N
249
N
H
N
250
N
H
N
251
N
N
N
252
S
C
N
253
N
C
N
254
N
O
N
255
N
C
Y
256
N
C
Y
257
N
C
Y
258
N
C
Y
259
N
C
Y
260
N
C
Y
261
N
C
N
262
N
O
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
N
N
275
S
C
N
276
N
C
N
277
N
O
N
278
N
C
N
279
N
C
N
280
N
C
N
281
N
O
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
N
N
292
S
C
N
293
N
C
N
294
N
O
N
295
N
C
N
296
N
O
N
297
N
O
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
S
N
306
N
O
N
307
N
O
N
308
N
O
N
309
N
O
N
310
N
N
N
311
S
C
N
312
N
C
N
313
N
O
N
314
R
C
N
315
N
O
N
316
N
C
N
317
N
O
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
N
Y
336
N
C
Y
337
N
C
Y
338
N
C
Y
339
N
C
Y
340
N
C
N
341
N
O
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
H
N
351
N
H
N
352
N
H
N
353
N
H
N
354
N
N
N
355
S
C
N
356
N
C
N
357
N
O
N
358
N
C
Y
359
N
C
Y
360
N
C
Y
361
N
C
Y
362
N
C
Y
363
N
C
Y
364
N
C
N
365
N
O
N
366
N
O
N
367
N
H
N
368
N
H
N
369
N
H
N
370
N
H
N
371
N
H
N
372
N
H
N
373
N
H
N
374
N
H
N
375
N
H
N
376
N
H
N
377
N
H
N
378
N
N
N
379
S
C
N
380
N
C
N
381
N
O
N
382
N
C
N
383
N
C
N
384
N
C
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
H
N
394
N
H
N
395
N
H
N
396
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
doub
N
77
N
sing
N
78
N
sing
N
79
N
sing
N
80
N
sing
N
81
N
sing
N
82
N
sing
N
83
N
sing
N
84
N
sing
N
85
N
sing
N
86
N
sing
N
87
N
sing
N
88
N
sing
N
89
N
doub
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
doub
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
sing
N
106
N
sing
N
107
N
sing
N
108
N
doub
N
109
N
sing
N
110
N
sing
N
111
N
sing
N
112
N
sing
N
113
N
sing
N
114
N
sing
N
115
N
sing
N
116
N
doub
N
117
N
sing
N
118
N
sing
N
119
N
sing
N
120
N
sing
N
121
N
sing
N
122
N
sing
N
123
N
sing
N
124
N
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
doub
N
136
N
sing
N
137
N
sing
N
138
N
sing
N
139
N
sing
Y
140
N
sing
Y
141
N
doub
Y
142
N
doub
N
143
N
sing
Y
144
N
sing
N
145
N
sing
Y
146
N
sing
N
147
N
sing
N
148
N
sing
N
149
N
sing
N
150
N
sing
N
151
N
sing
N
152
N
sing
N
153
N
sing
N
154
N
sing
N
155
N
sing
N
156
N
sing
N
157
N
sing
N
158
N
doub
N
159
N
sing
N
160
N
sing
N
161
N
sing
N
162
N
sing
N
163
N
sing
N
164
N
sing
N
165
N
sing
N
166
N
sing
N
167
N
sing
N
168
N
sing
N
169
N
sing
N
170
N
sing
N
171
N
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
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
doub
N
201
N
sing
N
202
N
sing
N
203
N
sing
N
204
N
sing
N
205
N
sing
N
206
N
sing
N
207
N
sing
N
208
N
sing
N
209
N
sing
N
210
N
sing
N
211
N
sing
N
212
N
sing
N
213
N
sing
N
214
N
sing
N
215
N
sing
N
216
N
sing
N
217
N
sing
N
218
N
sing
N
219
N
sing
N
220
N
sing
N
221
N
sing
N
222
N
sing
N
223
N
sing
N
224
N
doub
N
225
N
sing
N
226
N
sing
N
227
N
sing
N
228
N
sing
N
229
N
sing
N
230
N
sing
N
231
N
sing
N
232
N
sing
N
233
N
sing
N
234
N
sing
N
235
N
sing
N
236
N
sing
N
237
N
sing
N
238
N
sing
N
239
N
sing
N
240
N
sing
N
241
N
sing
N
242
N
sing
N
243
N
doub
N
244
N
sing
N
245
N
sing
N
246
N
sing
N
247
N
sing
Y
248
N
doub
Y
249
N
sing
Y
250
N
sing
N
251
N
sing
Y
252
N
doub
N
253
N
sing
Y
254
N
doub
N
255
N
sing
Y
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
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
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
doub
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
doub
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
doub
N
317
N
sing
N
318
N
sing
N
319
N
sing
N
320
N
sing
Y
321
N
doub
Y
322
N
sing
Y
323
N
sing
N
324
N
sing
Y
325
N
doub
Y
326
N
sing
Y
327
N
sing
N
328
N
sing
Y
329
N
sing
Y
330
N
doub
N
331
N
sing
Y
332
N
doub
N
333
N
sing
Y
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
sing
N
343
N
sing
N
344
N
doub
N
345
N
sing
N
346
N
sing
N
347
N
sing
N
348
N
sing
Y
349
N
doub
Y
350
N
sing
Y
351
N
sing
N
352
N
sing
Y
353
N
doub
N
354
N
sing
Y
355
N
doub
N
356
N
sing
Y
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
doub
N
369
N
sing
N
370
N
sing
N
371
N
sing
N
372
N
sing
N
373
N
sing
N
374
N
sing
N
375
N
sing
N
376
N
sing
N
377
N
sing
N
378
N
sing
N
379
N
sing
US
Nat.Struct.Biol.
NSBIEW
2024
1072-8368
8
689
10.1038/90401
11473259
X-Ray Snapshots of Serine Protease Catalysis Reveal a Tetrahedral Intermediate
2001
US
Nat.Struct.Biol.
NSBIEW
2024
1072-8368
4
456
10.1038/NSB0697-456
9187653
Structure of a Specific Acyl-Enzyme Complex Formed between Beta-Casomorphin-7 and Porcine Pancreatic Elastase
1997
DK
Acta Crystallogr.,Sect.B
ASBSDK
0622
0108-7681
44
26
10.1107/S0108768187007559
3271103
Structure of Native Porcine Pancreatic Elastase at 1.65A Resolution
1988
10.2210/pdb1hay/pdb
pdb_00001hay
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
100.0
1
CCD
1998-06-15
MARRESEARCH
SINGLE WAVELENGTH
M
x-ray
1
0.933
1.0
ID14-3
ESRF
0.933
SYNCHROTRON
ESRF BEAMLINE ID14-3
26014.148
ELASTASE 1
3.4.21.11
1
nat
polymer
40.078
CALCIUM ION
1
syn
non-polymer
96.063
SULFATE ION
1
syn
non-polymer
18.015
water
137
nat
water
PPE
no
no
VVGGTEAQRNSWPSQISLQYRSGSSWAHTCGGTLIRQNWVMTAAHCVDRELTFRVVVGEHNLNQNNGTEQYVGVQKIVVH
PYWNTDDVAAGYDIALLRLAQSVTLNSYVQLGVLPRAGTILRNNSPCYITGWGLTRTNGQLAQTLQQAYLPTVDYAICSS
SSYWGSTVKNSMVCAGGDGVRSGCQGDSGGPLHCLVNGQYAVHGVTSFVSRLGCNVTRKPTVFTRVSAYISWINNVIASN
VVGGTEAQRNSWPSQISLQYRSGSSWAHTCGGTLIRQNWVMTAAHCVDRELTFRVVVGEHNLNQNNGTEQYVGVQKIVVH
PYWNTDDVAAGYDIALLRLAQSVTLNSYVQLGVLPRAGTILRNNSPCYITGWGLTRTNGQLAQTLQQAYLPTVDYAICSS
SSYWGSTVKNSMVCAGGDGVRSGCQGDSGGPLHCLVNGQYAVHGVTSFVSRLGCNVTRKPTVFTRVSAYISWINNVIASN
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
PIG
sample
9823
PANCREAS
SUS SCROFA
1
1.79
30.83
10.00
CRYSTALLISED FROM 25MM SODIUM SULPHATE, 25MM SODIUM ACETATE (PH 5.0), 25 MG/ML PPE AND 25 MG/ML BCM7.
chem_comp_atom
chem_comp_bond
database_2
pdbx_initial_refinement_model
pdbx_struct_conn_angle
struct_conn
repository
Initial release
Version format compliance
Version format compliance
Data collection
Database references
Derived calculations
Refinement description
1
0
2001-08-02
1
1
2011-05-07
1
2
2011-07-13
1
3
2023-12-13
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_pdbx_struct_conn_angle.ptnr1_auth_comp_id
_pdbx_struct_conn_angle.ptnr1_auth_seq_id
_pdbx_struct_conn_angle.ptnr1_label_asym_id
_pdbx_struct_conn_angle.ptnr1_label_atom_id
_pdbx_struct_conn_angle.ptnr1_label_comp_id
_pdbx_struct_conn_angle.ptnr1_label_seq_id
_pdbx_struct_conn_angle.ptnr3_auth_comp_id
_pdbx_struct_conn_angle.ptnr3_auth_seq_id
_pdbx_struct_conn_angle.ptnr3_label_asym_id
_pdbx_struct_conn_angle.ptnr3_label_atom_id
_pdbx_struct_conn_angle.ptnr3_label_comp_id
_pdbx_struct_conn_angle.ptnr3_label_seq_id
_pdbx_struct_conn_angle.value
_struct_conn.pdbx_dist_value
_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
CRYSTAL STRUCTURE OF PORCINE PANCREATIC ELASTASE WITH MDL 101,146
BENZYL METHYL AMINIMIDE INHIBITOR COMPLEXED TO PORCINE PANCREATIC ELASTASE
PORCINE PANCREATIC ELASTASE COMPLEXED WITH (3S,4R) -1-TOLUENESULPHONYL-3-ETHYL-AZETIDIN-2 -ONE-4-CARBOXYLIC ACID
PORCINE ELASTASE UNDER XENON PRESSURE (8 BAR)
PORCINE PANCREATIC ELASTASE COMPLEXED WITH (3S,4S) N-PARA- TOLUENESULPHONYL-3-ETHYL-4-( CARBOXYLIC ACID) PYRROLIDIN-2-ONE SOAKED IN PH 9 BUFFER FOR ONE MINUTE
PORCINE PANCREATIC ELASTASE COMPLEXED WITH (3S,4S) N-PARA-TOLUENESULPHONYL -3-ETHYL-4-( CARBOXYLIC ACID)PYRROLIDIN-2-ONE SOAKED IN PH 9 BUFFER FOR TWO MINUTES
PORCINE PANCREATIC ELASTASE COMPLEXED WITH (3S,4S) N-PARA-NITROBENZENESULPHONYL -3-ETHYL- 4-(CARBOXYLIC ACID)PYRROLIDIN-2-ONE
PORCINE PANCREATIC ELASTASE COMPLEXED WITH (3S,4S) N-PARA-NITROBENZENESULPHONYL -3-ETHYL- 4-(CARBOXYLIC ACID)PYRROLIDIN-2-ONE SOAKED IN PH 9 BUFFER FOR 1 MINUTE
PORCINE PANCREATIC ELASTASE COMPLEXED WITH (3S,4S) N-PARA-NITROBENZENESULPHONYL -3-ETHYL- 4-(CARBOXYLIC ACID)PYRROLIDIN-2-ONE SOAKED IN PH 9 BUFFER FOR 2 MINUTES
COMPLEX OF ASCARIS CHYMOTRPSIN/ELASTASE INHIBITOR WITH PORCINE ELASTASE
ELASTASE COMPLEXED WITH 3-[[(METHYLAMINO) SULFONYL]AMINO]-2-OXO-6-PHENYL-N-[3,3, 3-TRIFLUORO-1- (1-METHYLETHYL)-2-OXOPROPYL] -1(2H)-PYRIDINEACETAMIDE
ELASTASE COMPLEXED WITH 2-[5- METHANESULFONYLAMINO-2-(4-AMINOPHENYL)-6-OXO- 1,6- DIHYDRO-1-PYRIMIDINYL]-N-(3,3,3- TRIFLUORO-1-ISOPROPYL-2- OXOPROPYL)ACETAMIDE
ELASTASE COMPLEXED WITH 2-[5-AMINO-6-OXO- 2-(2-THIENYL)-1,6-DIHYDROPYRIMIDIN-1-YL) - N-[3,3-DIFLUORO-1-ISOPROPYL-2-OXO-3 -(N-(2-MORPHOLINOETHYL) CARBAMOYL]PROPYL] ACETAMIDE
ELASTASE COMPLEXED WITH TRIFLUOROACETYL-L- LYSYL-L-PROLYL-P-ISOPROPYLANILIDE
ELASTASE COMPLEXED WITH TRIFLUOROACETYL-L- LYSYL-L-LEUCYL-P-ISOPROPYLANILIDE
ELASTASE COMPLEXED WITH TRIFLUOROACETYL-L- PHENYLALANYL-P-ISOPROPYLANILIDE
ELASTASE COMPLEXED WITH TRIFLUOROACETYL-L- PHENYLALANYL-L-ALANYL-P-TRIFLUOROMETHYLANINIDE (TFA-PHE-ALA-TFM)
ELASTASE COMPLEXED WITH TRIFLUOROACETYL-L- VALYL-L-ALANYL-P-TRIFLUOROMETHYLANINIDE (TFA- VAL-ALA-TFM)
ELASTASE COMPLEXED WITH N-(TERT- BUTOXYCARBONYL-ALANYL-ALANYL)-O-(P- NITROBENZOYL) HYDROXYLAMINE (BOC-ALA2-ALA1-NHO -NB)
ELASTASE COMPLEXED WITH N-(TERT- BUTOXYCARBONYL-ALANYL-ALANYL)-O-(P- NITROBENZOYL) HYDROXYLAMINE (BOC-ALA2-ALA1-NHO -NB) AT PH5
ELASTASE LOW TEMPERATURE FORM (-45 C)
ELASTASE COMPLEXED WITH N-CARBOBENZOXY-L- ALANYL-P-NITROPHENOL ESTER
TOSYL-ELASTASE
CRYSTAL STRUCTURE OF ELAFIN COMPLEXED WITH PORCINE PANCREATIC ELASTASE
PORCINE PANCREATIC ELASTASE COMPLEXED WITH ACETYL-VAL-GLU-PRO-ILE-COOH
PORCINE PANCREATIC ELASTASE COMPLEXED WITH GW311616A
PORCINE PANCREATIC ELASTASE COMPLEX WITH BENZOXAZINONE INHIBITOR
PORCINE PANCREATIC ELASTASE COMPLEX WITH THE HETEROCYCLIC INHIBITOR 3-METHOXY-4-CHLORO-7 -AMINOISOCOUMARIN
PORCINE ELASTASE
ELASTASE
PORCINE PANCREATIC ELASTASE COMPLEXED WITH (3R , 4S)N-PARA- TOLUENESULPHONYL-3-ETHYL-4-( CARBOXYLIC ACID)PYRROLIDIN-2-ONE
PORCINE PANCREATIC ELASTASE COMPLEXED WITH HUMAN BETA-CASOMORPHIN-7
THE STRUCTURE OF NATIVE PORCINE PANCREATIC ELASTASE AT ATOMIC RESOLUTION (1.1 A)
STRUCTURE OF PORCINE PANCREATIC ELASTASE IN COMPLEX WITH FR901277, A NOVEL MACROCYCLIC INHIBITOR OF ELASTASES AT 1.6 ANGSTROM RESOLUTION
ELASTASE COMPLEX WITH TRIFLUOROACETYL -L-LYSYL -L-ALANYL-P-TRIFLUOROMETHYLPHENYLANILIDE (TFAP)
NATIVE ELASTASE
PORCINE PANCREATIC ELASTASE COMPLEX WITH ACE- ALA-PRO-VAL-DIFLUORO-N-PHENYLETHYLACETAMIDE
PORCINE PANCREATIC ELASTASE COMPLEX WITH CARBOBENZOXY-ALANYL-ISOLEUCYLBORONIC ACID
ELASTASE CRYSTALLIZED IN 10% DMF
ELASTASE COMPLEX WITH TRIFLUOROACETYL -L- LEUCYL-L-ALANYL-P-TRIFLUOROMETHYLPHENYLANILIDE (TFAP)
PORCINE PANCREATIC ELASTASE COMPLEX WITH GUANIDINIUM ISOCOUMARIN
PORCINE PANCREATIC ELASTASE COMPLEX WITH GUANIDINIUM ISOCOUMARIN
SNAPSHOTS OF SERINE PROTEASE CATALYSIS: (A) ACYL-ENZYME INTERMEDIATE BETWEEN PORCINE PANCREATIC ELASTASE AND HUMAN BETA-CASOMORPHIN -7 AT PH 5
SNAPSHOTS OF SERINE PROTEASE CATALYSIS: (C) ACYL-ENZYME INTERMEDIATE BETWEEN PORCINE PANCREATIC ELASTASE AND HUMAN BETA-CASOMORPHIN -7 JUMPED TO PH 9 FOR 1 MINUTE
SNAPSHOTS OF SERINE PROTEASE CATALYSIS: (D) ACYL-ENZYME INTERMEDIATE BETWEEN PORCINE PANCREATIC ELASTASE AND HUMAN BETA-CASOMORPHIN -7 JUMPED TO PH 10 FOR 2 MINUTES
SHEET
DETERMINATION METHOD: DSSP
THE SHEETS PRESENTED AS "B" IN EACH CHAIN ON SHEET RECORDS
BELOW IS ACTUALLY AN 6-STRANDED BARREL THIS IS REPRESENTED BY
A 7-STRANDED SHEET IN WHICH THE FIRST AND LAST STRANDS
ARE IDENTICAL.
PDBE
Y
PDBE
2001-04-10
REL
CA
CALCIUM ION
SO4
SULFATE ION
HOH
water
1QIX
PDB ENTRY 1QIX
PDB
experimental model
CA
1246
2
CA
CA
1246
B
SO4
1247
3
SO4
SO4
1247
B
HOH
2001
4
HOH
HOH
2001
B
HOH
2002
4
HOH
HOH
2002
B
HOH
2003
4
HOH
HOH
2003
B
HOH
2004
4
HOH
HOH
2004
B
HOH
2005
4
HOH
HOH
2005
B
HOH
2006
4
HOH
HOH
2006
B
HOH
2007
4
HOH
HOH
2007
B
HOH
2008
4
HOH
HOH
2008
B
HOH
2009
4
HOH
HOH
2009
B
HOH
2010
4
HOH
HOH
2010
B
HOH
2011
4
HOH
HOH
2011
B
HOH
2012
4
HOH
HOH
2012
B
HOH
2013
4
HOH
HOH
2013
B
HOH
2014
4
HOH
HOH
2014
B
HOH
2015
4
HOH
HOH
2015
B
HOH
2016
4
HOH
HOH
2016
B
HOH
2017
4
HOH
HOH
2017
B
HOH
2018
4
HOH
HOH
2018
B
HOH
2019
4
HOH
HOH
2019
B
HOH
2020
4
HOH
HOH
2020
B
HOH
2021
4
HOH
HOH
2021
B
HOH
2022
4
HOH
HOH
2022
B
HOH
2023
4
HOH
HOH
2023
B
HOH
2024
4
HOH
HOH
2024
B
HOH
2025
4
HOH
HOH
2025
B
HOH
2026
4
HOH
HOH
2026
B
HOH
2027
4
HOH
HOH
2027
B
HOH
2028
4
HOH
HOH
2028
B
HOH
2029
4
HOH
HOH
2029
B
HOH
2030
4
HOH
HOH
2030
B
HOH
2031
4
HOH
HOH
2031
B
HOH
2032
4
HOH
HOH
2032
B
HOH
2033
4
HOH
HOH
2033
B
HOH
2034
4
HOH
HOH
2034
B
HOH
2035
4
HOH
HOH
2035
B
HOH
2036
4
HOH
HOH
2036
B
HOH
2037
4
HOH
HOH
2037
B
HOH
2038
4
HOH
HOH
2038
B
HOH
2039
4
HOH
HOH
2039
B
HOH
2040
4
HOH
HOH
2040
B
HOH
2041
4
HOH
HOH
2041
B
HOH
2042
4
HOH
HOH
2042
B
HOH
2043
4
HOH
HOH
2043
B
HOH
2044
4
HOH
HOH
2044
B
HOH
2045
4
HOH
HOH
2045
B
HOH
2046
4
HOH
HOH
2046
B
HOH
2047
4
HOH
HOH
2047
B
HOH
2048
4
HOH
HOH
2048
B
HOH
2049
4
HOH
HOH
2049
B
HOH
2050
4
HOH
HOH
2050
B
HOH
2051
4
HOH
HOH
2051
B
HOH
2052
4
HOH
HOH
2052
B
HOH
2053
4
HOH
HOH
2053
B
HOH
2054
4
HOH
HOH
2054
B
HOH
2055
4
HOH
HOH
2055
B
HOH
2056
4
HOH
HOH
2056
B
HOH
2057
4
HOH
HOH
2057
B
HOH
2058
4
HOH
HOH
2058
B
HOH
2059
4
HOH
HOH
2059
B
HOH
2060
4
HOH
HOH
2060
B
HOH
2061
4
HOH
HOH
2061
B
HOH
2062
4
HOH
HOH
2062
B
HOH
2063
4
HOH
HOH
2063
B
HOH
2064
4
HOH
HOH
2064
B
HOH
2065
4
HOH
HOH
2065
B
HOH
2066
4
HOH
HOH
2066
B
HOH
2067
4
HOH
HOH
2067
B
HOH
2068
4
HOH
HOH
2068
B
HOH
2069
4
HOH
HOH
2069
B
HOH
2070
4
HOH
HOH
2070
B
HOH
2071
4
HOH
HOH
2071
B
HOH
2072
4
HOH
HOH
2072
B
HOH
2073
4
HOH
HOH
2073
B
HOH
2074
4
HOH
HOH
2074
B
HOH
2075
4
HOH
HOH
2075
B
HOH
2076
4
HOH
HOH
2076
B
HOH
2077
4
HOH
HOH
2077
B
HOH
2078
4
HOH
HOH
2078
B
HOH
2079
4
HOH
HOH
2079
B
HOH
2080
4
HOH
HOH
2080
B
HOH
2081
4
HOH
HOH
2081
B
HOH
2082
4
HOH
HOH
2082
B
HOH
2083
4
HOH
HOH
2083
B
HOH
2084
4
HOH
HOH
2084
B
HOH
2085
4
HOH
HOH
2085
B
HOH
2086
4
HOH
HOH
2086
B
HOH
2087
4
HOH
HOH
2087
B
HOH
2088
4
HOH
HOH
2088
B
HOH
2089
4
HOH
HOH
2089
B
HOH
2090
4
HOH
HOH
2090
B
HOH
2091
4
HOH
HOH
2091
B
HOH
2092
4
HOH
HOH
2092
B
HOH
2093
4
HOH
HOH
2093
B
HOH
2094
4
HOH
HOH
2094
B
HOH
2095
4
HOH
HOH
2095
B
HOH
2096
4
HOH
HOH
2096
B
HOH
2097
4
HOH
HOH
2097
B
HOH
2098
4
HOH
HOH
2098
B
HOH
2099
4
HOH
HOH
2099
B
HOH
2100
4
HOH
HOH
2100
B
HOH
2101
4
HOH
HOH
2101
B
HOH
2102
4
HOH
HOH
2102
B
HOH
2103
4
HOH
HOH
2103
B
HOH
2104
4
HOH
HOH
2104
B
HOH
2105
4
HOH
HOH
2105
B
HOH
2106
4
HOH
HOH
2106
B
HOH
2107
4
HOH
HOH
2107
B
HOH
2108
4
HOH
HOH
2108
B
HOH
2109
4
HOH
HOH
2109
B
HOH
2110
4
HOH
HOH
2110
B
HOH
2111
4
HOH
HOH
2111
B
HOH
2112
4
HOH
HOH
2112
B
HOH
2113
4
HOH
HOH
2113
B
HOH
2114
4
HOH
HOH
2114
B
HOH
2115
4
HOH
HOH
2115
B
HOH
2116
4
HOH
HOH
2116
B
HOH
2117
4
HOH
HOH
2117
B
HOH
2118
4
HOH
HOH
2118
B
HOH
2119
4
HOH
HOH
2119
B
HOH
2120
4
HOH
HOH
2120
B
HOH
2121
4
HOH
HOH
2121
B
HOH
2122
4
HOH
HOH
2122
B
HOH
2123
4
HOH
HOH
2123
B
HOH
2124
4
HOH
HOH
2124
B
HOH
2125
4
HOH
HOH
2125
B
HOH
2126
4
HOH
HOH
2126
B
HOH
2127
4
HOH
HOH
2127
B
HOH
2128
4
HOH
HOH
2128
B
HOH
2129
4
HOH
HOH
2129
B
HOH
2130
4
HOH
HOH
2130
B
HOH
2131
4
HOH
HOH
2131
B
HOH
2132
4
HOH
HOH
2132
B
HOH
2133
4
HOH
HOH
2133
B
HOH
2134
4
HOH
HOH
2134
B
HOH
2135
4
HOH
HOH
2135
B
HOH
2136
4
HOH
HOH
2136
B
HOH
2137
4
HOH
HOH
2137
B
VAL
16
n
1
VAL
16
B
VAL
17
n
2
VAL
17
B
GLY
18
n
3
GLY
18
B
GLY
19
n
4
GLY
19
B
THR
20
n
5
THR
20
B
GLU
21
n
6
GLU
21
B
ALA
22
n
7
ALA
22
B
GLN
23
n
8
GLN
23
B
ARG
24
n
9
ARG
24
B
ASN
25
n
10
ASN
25
B
SER
26
n
11
SER
26
B
TRP
27
n
12
TRP
27
B
PRO
28
n
13
PRO
28
B
SER
29
n
14
SER
29
B
GLN
30
n
15
GLN
30
B
ILE
31
n
16
ILE
31
B
SER
32
n
17
SER
32
B
LEU
33
n
18
LEU
33
B
GLN
34
n
19
GLN
34
B
TYR
35
n
20
TYR
35
B
ARG
36
n
21
ARG
36
B
SER
36
n
22
A
SER
36
B
GLY
36
n
23
B
GLY
36
B
SER
36
n
24
C
SER
36
B
SER
37
n
25
SER
37
B
TRP
38
n
26
TRP
38
B
ALA
39
n
27
ALA
39
B
HIS
40
n
28
HIS
40
B
THR
41
n
29
THR
41
B
CYS
42
n
30
CYS
42
B
GLY
43
n
31
GLY
43
B
GLY
44
n
32
GLY
44
B
THR
45
n
33
THR
45
B
LEU
46
n
34
LEU
46
B
ILE
47
n
35
ILE
47
B
ARG
48
n
36
ARG
48
B
GLN
49
n
37
GLN
49
B
ASN
50
n
38
ASN
50
B
TRP
51
n
39
TRP
51
B
VAL
52
n
40
VAL
52
B
MET
53
n
41
MET
53
B
THR
54
n
42
THR
54
B
ALA
55
n
43
ALA
55
B
ALA
56
n
44
ALA
56
B
HIS
57
n
45
HIS
57
B
CYS
58
n
46
CYS
58
B
VAL
59
n
47
VAL
59
B
ASP
60
n
48
ASP
60
B
ARG
61
n
49
ARG
61
B
GLU
62
n
50
GLU
62
B
LEU
63
n
51
LEU
63
B
THR
64
n
52
THR
64
B
PHE
65
n
53
PHE
65
B
ARG
65
n
54
A
ARG
65
B
VAL
66
n
55
VAL
66
B
VAL
67
n
56
VAL
67
B
VAL
68
n
57
VAL
68
B
GLY
69
n
58
GLY
69
B
GLU
70
n
59
GLU
70
B
HIS
71
n
60
HIS
71
B
ASN
72
n
61
ASN
72
B
LEU
73
n
62
LEU
73
B
ASN
74
n
63
ASN
74
B
GLN
75
n
64
GLN
75
B
ASN
76
n
65
ASN
76
B
ASN
77
n
66
ASN
77
B
GLY
78
n
67
GLY
78
B
THR
79
n
68
THR
79
B
GLU
80
n
69
GLU
80
B
GLN
81
n
70
GLN
81
B
TYR
82
n
71
TYR
82
B
VAL
83
n
72
VAL
83
B
GLY
84
n
73
GLY
84
B
VAL
85
n
74
VAL
85
B
GLN
86
n
75
GLN
86
B
LYS
87
n
76
LYS
87
B
ILE
88
n
77
ILE
88
B
VAL
89
n
78
VAL
89
B
VAL
90
n
79
VAL
90
B
HIS
91
n
80
HIS
91
B
PRO
92
n
81
PRO
92
B
TYR
93
n
82
TYR
93
B
TRP
94
n
83
TRP
94
B
ASN
95
n
84
ASN
95
B
THR
96
n
85
THR
96
B
ASP
97
n
86
ASP
97
B
ASP
98
n
87
ASP
98
B
VAL
99
n
88
VAL
99
B
ALA
99
n
89
A
ALA
99
B
ALA
99
n
90
B
ALA
99
B
GLY
100
n
91
GLY
100
B
TYR
101
n
92
TYR
101
B
ASP
102
n
93
ASP
102
B
ILE
103
n
94
ILE
103
B
ALA
104
n
95
ALA
104
B
LEU
105
n
96
LEU
105
B
LEU
106
n
97
LEU
106
B
ARG
107
n
98
ARG
107
B
LEU
108
n
99
LEU
108
B
ALA
109
n
100
ALA
109
B
GLN
110
n
101
GLN
110
B
SER
111
n
102
SER
111
B
VAL
112
n
103
VAL
112
B
THR
113
n
104
THR
113
B
LEU
114
n
105
LEU
114
B
ASN
115
n
106
ASN
115
B
SER
116
n
107
SER
116
B
TYR
117
n
108
TYR
117
B
VAL
118
n
109
VAL
118
B
GLN
119
n
110
GLN
119
B
LEU
120
n
111
LEU
120
B
GLY
121
n
112
GLY
121
B
VAL
122
n
113
VAL
122
B
LEU
123
n
114
LEU
123
B
PRO
124
n
115
PRO
124
B
ARG
125
n
116
ARG
125
B
ALA
126
n
117
ALA
126
B
GLY
127
n
118
GLY
127
B
THR
128
n
119
THR
128
B
ILE
129
n
120
ILE
129
B
LEU
130
n
121
LEU
130
B
ARG
131
n
122
ARG
131
B
ASN
132
n
123
ASN
132
B
ASN
133
n
124
ASN
133
B
SER
134
n
125
SER
134
B
PRO
135
n
126
PRO
135
B
CYS
136
n
127
CYS
136
B
TYR
137
n
128
TYR
137
B
ILE
138
n
129
ILE
138
B
THR
139
n
130
THR
139
B
GLY
140
n
131
GLY
140
B
TRP
141
n
132
TRP
141
B
GLY
142
n
133
GLY
142
B
LEU
143
n
134
LEU
143
B
THR
144
n
135
THR
144
B
ARG
145
n
136
ARG
145
B
THR
147
n
137
THR
147
B
ASN
148
n
138
ASN
148
B
GLY
149
n
139
GLY
149
B
GLN
150
n
140
GLN
150
B
LEU
151
n
141
LEU
151
B
ALA
152
n
142
ALA
152
B
GLN
153
n
143
GLN
153
B
THR
154
n
144
THR
154
B
LEU
155
n
145
LEU
155
B
GLN
156
n
146
GLN
156
B
GLN
157
n
147
GLN
157
B
ALA
158
n
148
ALA
158
B
TYR
159
n
149
TYR
159
B
LEU
160
n
150
LEU
160
B
PRO
161
n
151
PRO
161
B
THR
162
n
152
THR
162
B
VAL
163
n
153
VAL
163
B
ASP
164
n
154
ASP
164
B
TYR
165
n
155
TYR
165
B
ALA
166
n
156
ALA
166
B
ILE
167
n
157
ILE
167
B
CYS
168
n
158
CYS
168
B
SER
169
n
159
SER
169
B
SER
170
n
160
SER
170
B
SER
170
n
161
A
SER
170
B
SER
170
n
162
B
SER
170
B
TYR
171
n
163
TYR
171
B
TRP
172
n
164
TRP
172
B
GLY
173
n
165
GLY
173
B
SER
174
n
166
SER
174
B
THR
175
n
167
THR
175
B
VAL
176
n
168
VAL
176
B
LYS
177
n
169
LYS
177
B
ASN
178
n
170
ASN
178
B
SER
179
n
171
SER
179
B
MET
180
n
172
MET
180
B
VAL
181
n
173
VAL
181
B
CYS
182
n
174
CYS
182
B
ALA
183
n
175
ALA
183
B
GLY
184
n
176
GLY
184
B
GLY
185
n
177
GLY
185
B
ASP
186
n
178
ASP
186
B
GLY
187
n
179
GLY
187
B
VAL
188
n
180
VAL
188
B
ARG
188
n
181
A
ARG
188
B
SER
189
n
182
SER
189
B
GLY
190
n
183
GLY
190
B
CYS
191
n
184
CYS
191
B
GLN
192
n
185
GLN
192
B
GLY
193
n
186
GLY
193
B
ASP
194
n
187
ASP
194
B
SER
195
n
188
SER
195
B
GLY
196
n
189
GLY
196
B
GLY
197
n
190
GLY
197
B
PRO
198
n
191
PRO
198
B
LEU
199
n
192
LEU
199
B
HIS
200
n
193
HIS
200
B
CYS
201
n
194
CYS
201
B
LEU
202
n
195
LEU
202
B
VAL
203
n
196
VAL
203
B
ASN
204
n
197
ASN
204
B
GLY
205
n
198
GLY
205
B
GLN
206
n
199
GLN
206
B
TYR
207
n
200
TYR
207
B
ALA
208
n
201
ALA
208
B
VAL
209
n
202
VAL
209
B
HIS
210
n
203
HIS
210
B
GLY
211
n
204
GLY
211
B
VAL
212
n
205
VAL
212
B
THR
213
n
206
THR
213
B
SER
214
n
207
SER
214
B
PHE
215
n
208
PHE
215
B
VAL
216
n
209
VAL
216
B
SER
217
n
210
SER
217
B
ARG
217
n
211
A
ARG
217
B
LEU
218
n
212
LEU
218
B
GLY
219
n
213
GLY
219
B
CYS
220
n
214
CYS
220
B
ASN
221
n
215
ASN
221
B
VAL
221
n
216
A
VAL
221
B
THR
222
n
217
THR
222
B
ARG
223
n
218
ARG
223
B
LYS
224
n
219
LYS
224
B
PRO
225
n
220
PRO
225
B
THR
226
n
221
THR
226
B
VAL
227
n
222
VAL
227
B
PHE
228
n
223
PHE
228
B
THR
229
n
224
THR
229
B
ARG
230
n
225
ARG
230
B
VAL
231
n
226
VAL
231
B
SER
232
n
227
SER
232
B
ALA
233
n
228
ALA
233
B
TYR
234
n
229
TYR
234
B
ILE
235
n
230
ILE
235
B
SER
236
n
231
SER
236
B
TRP
237
n
232
TRP
237
B
ILE
238
n
233
ILE
238
B
ASN
239
n
234
ASN
239
B
ASN
240
n
235
ASN
240
B
VAL
241
n
236
VAL
241
B
ILE
242
n
237
ILE
242
B
ALA
243
n
238
ALA
243
B
SER
244
n
239
SER
244
B
ASN
245
n
240
ASN
245
B
author_and_software_defined_assembly
PQS
1
monomeric
B
GLU
70
A
OE1
GLU
59
1_555
B
CA
1246
B
CA
CA
1_555
B
GLU
70
A
OE2
GLU
59
1_555
45.0
B
GLU
70
A
OE1
GLU
59
1_555
B
CA
1246
B
CA
CA
1_555
B
ASN
72
A
O
ASN
61
1_555
83.2
B
GLU
70
A
OE2
GLU
59
1_555
B
CA
1246
B
CA
CA
1_555
B
ASN
72
A
O
ASN
61
1_555
82.1
B
GLU
70
A
OE1
GLU
59
1_555
B
CA
1246
B
CA
CA
1_555
B
GLN
75
A
O
GLN
64
1_555
151.3
B
GLU
70
A
OE2
GLU
59
1_555
B
CA
1246
B
CA
CA
1_555
B
GLN
75
A
O
GLN
64
1_555
148.8
B
ASN
72
A
O
ASN
61
1_555
B
CA
1246
B
CA
CA
1_555
B
GLN
75
A
O
GLN
64
1_555
77.6
B
GLU
70
A
OE1
GLU
59
1_555
B
CA
1246
B
CA
CA
1_555
B
ASN
77
A
OD1
ASN
66
1_555
70.8
B
GLU
70
A
OE2
GLU
59
1_555
B
CA
1246
B
CA
CA
1_555
B
ASN
77
A
OD1
ASN
66
1_555
115.5
B
ASN
72
A
O
ASN
61
1_555
B
CA
1246
B
CA
CA
1_555
B
ASN
77
A
OD1
ASN
66
1_555
85.2
B
GLN
75
A
O
GLN
64
1_555
B
CA
1246
B
CA
CA
1_555
B
ASN
77
A
OD1
ASN
66
1_555
86.4
B
GLU
70
A
OE1
GLU
59
1_555
B
CA
1246
B
CA
CA
1_555
B
GLU
80
A
OE1
GLU
69
1_555
99.0
B
GLU
70
A
OE2
GLU
59
1_555
B
CA
1246
B
CA
CA
1_555
B
GLU
80
A
OE1
GLU
69
1_555
105.7
B
ASN
72
A
O
ASN
61
1_555
B
CA
1246
B
CA
CA
1_555
B
GLU
80
A
OE1
GLU
69
1_555
170.8
B
GLN
75
A
O
GLN
64
1_555
B
CA
1246
B
CA
CA
1_555
B
GLU
80
A
OE1
GLU
69
1_555
97.0
B
ASN
77
A
OD1
ASN
66
1_555
B
CA
1246
B
CA
CA
1_555
B
GLU
80
A
OE1
GLU
69
1_555
87.1
B
GLU
70
A
OE1
GLU
59
1_555
B
CA
1246
B
CA
CA
1_555
B
HOH
2036
D
O
HOH
1_555
118.9
B
GLU
70
A
OE2
GLU
59
1_555
B
CA
1246
B
CA
CA
1_555
B
HOH
2036
D
O
HOH
1_555
73.9
B
ASN
72
A
O
ASN
61
1_555
B
CA
1246
B
CA
CA
1_555
B
HOH
2036
D
O
HOH
1_555
91.5
B
GLN
75
A
O
GLN
64
1_555
B
CA
1246
B
CA
CA
1_555
B
HOH
2036
D
O
HOH
1_555
83.1
B
ASN
77
A
OD1
ASN
66
1_555
B
CA
1246
B
CA
CA
1_555
B
HOH
2036
D
O
HOH
1_555
169.4
B
GLU
80
A
OE1
GLU
69
1_555
B
CA
1246
B
CA
CA
1_555
B
HOH
2036
D
O
HOH
1_555
95.2
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
B
N
THR
20
A
N
THR
5
B
O
GLN
157
A
O
GLN
147
B
N
ALA
158
A
N
ALA
148
B
O
ILE
138
A
O
ILE
129
B
N
THR
139
A
N
THR
130
B
O
PRO
198
A
O
PRO
191
B
N
VAL
203
A
N
VAL
196
B
O
GLN
206
A
O
GLN
199
B
N
SER
214
A
N
SER
207
B
O
VAL
227
A
O
VAL
222
B
N
PHE
228
A
N
PHE
223
B
O
VAL
181
A
O
VAL
173
B
N
CYS
182
A
N
CYS
174
B
O
VAL
163
A
O
VAL
153
A
B
N
SER
36
A
N
SER
22
B
O
SER
37
A
O
SER
25
B
N
ILE
47
A
N
ILE
35
B
O
TRP
51
A
O
TRP
39
B
N
THR
54
A
N
THR
42
B
O
ALA
104
A
O
ALA
95
B
O
ARG
107
A
O
ARG
98
B
N
GLN
86
A
N
GLN
75
B
N
VAL
85
A
N
VAL
74
B
O
PHE
65
A
O
PHE
53
B
N
VAL
67
A
N
VAL
56
B
O
SER
32
A
O
SER
17
1
B
CG
ARG
61
A
CG
ARG
49
1
Y
1
B
CD
ARG
61
A
CD
ARG
49
1
Y
1
B
NE
ARG
61
A
NE
ARG
49
1
Y
1
B
CZ
ARG
61
A
CZ
ARG
49
1
Y
1
B
NH1
ARG
61
A
NH1
ARG
49
1
Y
1
B
NH2
ARG
61
A
NH2
ARG
49
1
Y
1
B
CG
ARG
125
A
CG
ARG
116
1
Y
1
B
CD
ARG
125
A
CD
ARG
116
1
Y
1
B
NE
ARG
125
A
NE
ARG
116
1
Y
1
B
CZ
ARG
125
A
CZ
ARG
116
1
Y
1
B
NH1
ARG
125
A
NH1
ARG
116
1
Y
1
B
NH2
ARG
125
A
NH2
ARG
116
1
Y
1
B
CG
ARG
131
A
CG
ARG
122
1
Y
1
B
CD
ARG
131
A
CD
ARG
122
1
Y
1
B
NE
ARG
131
A
NE
ARG
122
1
Y
1
B
CZ
ARG
131
A
CZ
ARG
122
1
Y
1
B
NH1
ARG
131
A
NH1
ARG
122
1
Y
1
B
NH2
ARG
131
A
NH2
ARG
122
1
Y
1
B
HIS
71
-135.59
-53.56
1
B
ASN
115
-161.37
-164.38
1
B
TYR
171
-102.94
-111.39
PROTEIN_REP.PARAM
PROTEIN.TOP
WATER_REP.PARAM
WATER.TOP
ION.PARAM
ION.TOP
17.9
-6.087
0
0
2.056
0
4.031
ARG B 61 AND ARG B 125, SIDE CHAIN DISORDERED
0.214
0.195
0.195
1.7
38.0
966
23364
4.0
97.7
RANDOM
1
RESTRAINED
THROUGHOUT
0.0
MOLECULAR REPLACEMENT
PDB ENTRY 1QIX
STANDARD CNS
42.3
0.40
1.7
38.0
137
1952
6
0
1809
0.0047
1.29
1.126
0
1.716
0
1.732
0
2.590
0
0.340
0.285
1.73
42
1062
19
4.0
16.1
1.700
37.700
1HAY
23364
0.000
0.06000
1
20.9000
3.600
97.7
0.27500
1.70
1.79
3.700
1
3.40
91.0
refinement
CNS
1.0
data reduction
MOSFLM
data scaling
SCALA
Snapshots of serine protease catalysis: (B) acyl-enzyme intermediate between porcine pancreatic elastase and human beta-casomorphin-7 jumped to pH 10 for 10 seconds
1
N
N
2
N
N
3
N
N
4
N
N
B
ALA
55
A
ALA
43
HELX_P
B
ASP
60
A
ASP
48
5
1
6
B
ASP
98
A
ASP
87
HELX_P
B
GLY
100
A
GLY
91
5
2
5
B
ASP
164
A
ASP
154
HELX_P
B
SER
169
A
SER
159
1
3
6
B
TRP
172
A
TRP
164
HELX_P
B
VAL
176
A
VAL
168
5
4
5
B
TYR
234
A
TYR
229
HELX_P
B
ASN
245
A
ASN
240
1
5
12
disulf
2.030
B
CYS
42
A
SG
CYS
30
1_555
B
CYS
58
A
SG
CYS
46
1_555
disulf
2.033
B
CYS
136
A
SG
CYS
127
1_555
B
CYS
201
A
SG
CYS
194
1_555
disulf
2.030
B
CYS
168
A
SG
CYS
158
1_555
B
CYS
182
A
SG
CYS
174
1_555
disulf
2.030
B
CYS
191
A
SG
CYS
184
1_555
B
CYS
220
A
SG
CYS
214
1_555
metalc
2.493
B
GLU
70
A
OE1
GLU
59
1_555
B
CA
1246
B
CA
CA
1_555
metalc
3.064
B
GLU
70
A
OE2
GLU
59
1_555
B
CA
1246
B
CA
CA
1_555
metalc
2.434
B
ASN
72
A
O
ASN
61
1_555
B
CA
1246
B
CA
CA
1_555
metalc
2.462
B
GLN
75
A
O
GLN
64
1_555
B
CA
1246
B
CA
CA
1_555
metalc
2.583
B
ASN
77
A
OD1
ASN
66
1_555
B
CA
1246
B
CA
CA
1_555
metalc
2.470
B
GLU
80
A
OE1
GLU
69
1_555
B
CA
1246
B
CA
CA
1_555
metalc
2.702
B
CA
1246
B
CA
CA
1_555
B
HOH
2036
D
O
HOH
1_555
HYDROLASE
HYDROLASE, SERINE PROTEINASE, HYDROLASE (SERINE PROTEINASE)
EL1_PIG
UNP
1
P00772
27
266
1HAY
16
245
P00772
B
1
1
240
8
7
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
B
THR
20
A
THR
5
B
GLU
21
A
GLU
6
B
GLN
156
A
GLN
146
B
TYR
159
A
TYR
149
B
CYS
136
A
CYS
127
B
GLY
140
A
GLY
131
B
PRO
198
A
PRO
191
B
VAL
203
A
VAL
196
B
GLN
206
A
GLN
199
B
PHE
215
A
PHE
208
B
THR
226
A
THR
221
B
ARG
230
A
ARG
225
B
MET
180
A
MET
172
B
ALA
183
A
ALA
175
B
THR
162
A
THR
152
B
VAL
163
A
VAL
153
B
GLN
30
A
GLN
15
B
SER
36
A
SER
22
A
B
SER
37
A
SER
25
B
ARG
48
A
ARG
36
B
TRP
51
A
TRP
39
B
THR
54
A
THR
42
B
ALA
104
A
ALA
95
B
LEU
108
A
LEU
99
B
GLN
81
A
GLN
70
B
VAL
90
A
VAL
79
B
PHE
65
A
PHE
53
B
VAL
68
A
VAL
57
B
GLN
30
A
GLN
15
B
SER
36
A
SER
22
A
BINDING SITE FOR RESIDUE CA B1246
Software
6
BINDING SITE FOR RESIDUE SO4 B1247
Software
6
B
GLU
70
A
GLU
59
6
1_555
B
ASN
72
A
ASN
61
6
1_555
B
GLN
75
A
GLN
64
6
1_555
B
ASN
77
A
ASN
66
6
1_555
B
GLU
80
A
GLU
69
6
1_555
B
HOH
2036
D
HOH
6
1_555
B
GLY
127
A
GLY
118
6
1_555
B
ARG
145
A
ARG
136
6
1_555
B
ARG
230
A
ARG
225
6
1_555
B
SER
232
A
SER
227
6
1_555
B
ALA
233
A
ALA
228
6
1_555
B
HOH
2072
D
HOH
6
1_555
19
P 21 21 21