0.012870
0.000000
0.000000
0.000000
0.018580
0.000000
0.000000
0.000000
0.021240
0.00000
0.00000
0.00000
Johnson, A.
Krishnaswamy, S.
Sundaram, P.V.
Pattabhi, V.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
4
90.00
90.00
90.00
77.700
53.820
47.080
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
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
N
N
306
S
C
N
307
N
C
N
308
N
O
N
309
R
C
N
310
N
O
N
311
N
C
N
312
N
O
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
H
N
320
N
H
N
321
N
H
N
322
N
N
N
323
S
C
N
324
N
C
N
325
N
O
N
326
N
C
Y
327
N
C
Y
328
N
C
Y
329
N
C
Y
330
N
N
Y
331
N
C
Y
332
N
C
Y
333
N
C
Y
334
N
C
Y
335
N
C
N
336
N
O
N
337
N
H
N
338
N
H
N
339
N
H
N
340
N
H
N
341
N
H
N
342
N
H
N
343
N
H
N
344
N
H
N
345
N
H
N
346
N
H
N
347
N
H
N
348
N
H
N
349
N
N
N
350
S
C
N
351
N
C
N
352
N
O
N
353
N
C
Y
354
N
C
Y
355
N
C
Y
356
N
C
Y
357
N
C
Y
358
N
C
Y
359
N
C
N
360
N
O
N
361
N
O
N
362
N
H
N
363
N
H
N
364
N
H
N
365
N
H
N
366
N
H
N
367
N
H
N
368
N
H
N
369
N
H
N
370
N
H
N
371
N
H
N
372
N
H
N
373
N
N
N
374
S
C
N
375
N
C
N
376
N
O
N
377
N
C
N
378
N
C
N
379
N
C
N
380
N
O
N
381
N
H
N
382
N
H
N
383
N
H
N
384
N
H
N
385
N
H
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
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
sing
N
291
N
sing
N
292
N
sing
N
293
N
sing
N
294
N
sing
N
295
N
sing
N
296
N
doub
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
doub
N
313
N
sing
N
314
N
sing
N
315
N
sing
N
316
N
sing
Y
317
N
doub
Y
318
N
sing
Y
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
sing
Y
326
N
doub
N
327
N
sing
Y
328
N
doub
N
329
N
sing
Y
330
N
sing
N
331
N
sing
N
332
N
sing
N
333
N
sing
N
334
N
sing
N
335
N
sing
N
336
N
sing
N
337
N
sing
N
338
N
sing
N
339
N
sing
N
340
N
doub
N
341
N
sing
N
342
N
sing
N
343
N
sing
N
344
N
sing
Y
345
N
doub
Y
346
N
sing
Y
347
N
sing
N
348
N
sing
Y
349
N
doub
N
350
N
sing
Y
351
N
doub
N
352
N
sing
Y
353
N
sing
N
354
N
sing
N
355
N
sing
N
356
N
sing
N
357
N
sing
N
358
N
sing
N
359
N
sing
N
360
N
sing
N
361
N
sing
N
362
N
sing
N
363
N
sing
N
364
N
doub
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
sing
DK
Acta Crystallogr.,Sect.D
ABCRE6
0766
0907-4449
53
311
315
10.1107/S0907444997000358
15299934
The first structure at 1.8 A resolution of an active autolysate form of porcine alpha-trysoin.
1997
10.2210/pdb1aks/pdb
pdb_00001aks
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
1
x-ray
1
1.0
13303.996
ALPHA TRYPSIN
3.4.21.4
1
nat
polymer
10205.522
ALPHA TRYPSIN
3.4.21.4
1
nat
polymer
40.078
CALCIUM ION
1
syn
non-polymer
18.015
water
111
nat
water
no
no
IVGGYTCAANSIPYQVSLNSGSHFCGGSLINSQWVVSAAHCYKSRIQVRLGEHNIDVLEGNEQFINAAKIITHPNFNGNT
LDNDIMLIKLSSPATLNSRVATVSLPRSCAAAGTECLISGWGNTK
IVGGYTCAANSIPYQVSLNSGSHFCGGSLINSQWVVSAAHCYKSRIQVRLGEHNIDVLEGNEQFINAAKIITHPNFNGNT
LDNDIMLIKLSSPATLNSRVATVSLPRSCAAAGTECLISGWGNTK
A
polypeptide(L)
no
no
SSGSSYPSLLQCLKAPVLSNSSCKSSYPGQITGNMICVGFLQGGKDSCQGDSGGPVVCNGQLQGIVSWGYGCAQKNKPGV
YTKVCNYVNWIQQTIAAN
SSGSSYPSLLQCLKAPVLSNSSCKSSYPGQITGNMICVGFLQGGKDSCQGDSGGPVVCNGQLQGIVSWGYGCAQKNKPGV
YTKVCNYVNWIQQTIAAN
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
pig
Sus
sample
9823
PANCREAS
Sus scrofa
pig
Sus
sample
9823
PANCREAS
Sus scrofa
2.09
41.23
chem_comp_atom
chem_comp_bond
database_2
pdbx_database_status
struct_conn
struct_ref_seq_dif
struct_site
repository
Initial release
Version format compliance
Version format compliance
Data collection
Database references
Derived calculations
Other
1
0
1997-02-12
1
1
2008-03-24
1
2
2011-07-13
1
3
2024-06-05
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_pdbx_database_status.process_site
_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
Y
BNL
1996-07-24
REL
REL
CA
CALCIUM ION
HOH
water
THE 223 AMINO ACIDS OF TRYPSIN ARE IDENTIFIED BY THE
RESIDUE NUMBERS OF THE HOMOLOGOUS CHYMOTRYPSINOGEN.
IN THIS ENTRY TWO CHAINS OF TRYPSIN ARE GIVEN IDENTIFIERS
"A" (RESIDUES 16 - 145) AND "B" (RESIDUES 146 - 245).
CA
112
3
CA
CA
146
A
HOH
1
4
HOH
HOH
147
A
HOH
2
4
HOH
HOH
148
A
HOH
3
4
HOH
HOH
149
A
HOH
4
4
HOH
HOH
150
A
HOH
5
4
HOH
HOH
151
A
HOH
6
4
HOH
HOH
152
A
HOH
7
4
HOH
HOH
153
A
HOH
8
4
HOH
HOH
154
A
HOH
9
4
HOH
HOH
155
A
HOH
10
4
HOH
HOH
156
A
HOH
11
4
HOH
HOH
157
A
HOH
12
4
HOH
HOH
158
A
HOH
13
4
HOH
HOH
159
A
HOH
14
4
HOH
HOH
160
A
HOH
15
4
HOH
HOH
161
A
HOH
16
4
HOH
HOH
162
A
HOH
17
4
HOH
HOH
163
A
HOH
18
4
HOH
HOH
164
A
HOH
20
4
HOH
HOH
165
A
HOH
21
4
HOH
HOH
166
A
HOH
22
4
HOH
HOH
167
A
HOH
23
4
HOH
HOH
168
A
HOH
24
4
HOH
HOH
169
A
HOH
34
4
HOH
HOH
170
A
HOH
35
4
HOH
HOH
171
A
HOH
36
4
HOH
HOH
172
A
HOH
38
4
HOH
HOH
173
A
HOH
39
4
HOH
HOH
174
A
HOH
44
4
HOH
HOH
175
A
HOH
46
4
HOH
HOH
176
A
HOH
47
4
HOH
HOH
177
A
HOH
48
4
HOH
HOH
178
A
HOH
50
4
HOH
HOH
179
A
HOH
51
4
HOH
HOH
180
A
HOH
52
4
HOH
HOH
181
A
HOH
53
4
HOH
HOH
182
A
HOH
54
4
HOH
HOH
183
A
HOH
55
4
HOH
HOH
184
A
HOH
56
4
HOH
HOH
185
A
HOH
58
4
HOH
HOH
186
A
HOH
67
4
HOH
HOH
187
A
HOH
68
4
HOH
HOH
188
A
HOH
69
4
HOH
HOH
189
A
HOH
70
4
HOH
HOH
190
A
HOH
71
4
HOH
HOH
191
A
HOH
72
4
HOH
HOH
192
A
HOH
73
4
HOH
HOH
193
A
HOH
75
4
HOH
HOH
194
A
HOH
76
4
HOH
HOH
195
A
HOH
78
4
HOH
HOH
196
A
HOH
79
4
HOH
HOH
197
A
HOH
80
4
HOH
HOH
198
A
HOH
81
4
HOH
HOH
199
A
HOH
82
4
HOH
HOH
200
A
HOH
83
4
HOH
HOH
201
A
HOH
89
4
HOH
HOH
202
A
HOH
90
4
HOH
HOH
203
A
HOH
91
4
HOH
HOH
204
A
HOH
92
4
HOH
HOH
205
A
HOH
93
4
HOH
HOH
206
A
HOH
94
4
HOH
HOH
207
A
HOH
95
4
HOH
HOH
208
A
HOH
98
4
HOH
HOH
209
A
HOH
101
4
HOH
HOH
210
A
HOH
103
4
HOH
HOH
211
A
HOH
104
4
HOH
HOH
212
A
HOH
105
4
HOH
HOH
213
A
HOH
106
4
HOH
HOH
214
A
HOH
107
4
HOH
HOH
215
A
HOH
108
4
HOH
HOH
216
A
HOH
111
4
HOH
HOH
217
A
HOH
19
4
HOH
HOH
19
B
HOH
25
4
HOH
HOH
25
B
HOH
26
4
HOH
HOH
26
B
HOH
27
4
HOH
HOH
27
B
HOH
28
4
HOH
HOH
28
B
HOH
29
4
HOH
HOH
29
B
HOH
30
4
HOH
HOH
30
B
HOH
31
4
HOH
HOH
31
B
HOH
32
4
HOH
HOH
32
B
HOH
33
4
HOH
HOH
33
B
HOH
37
4
HOH
HOH
37
B
HOH
40
4
HOH
HOH
40
B
HOH
41
4
HOH
HOH
41
B
HOH
42
4
HOH
HOH
42
B
HOH
43
4
HOH
HOH
43
B
HOH
45
4
HOH
HOH
45
B
HOH
49
4
HOH
HOH
49
B
HOH
57
4
HOH
HOH
57
B
HOH
59
4
HOH
HOH
59
B
HOH
60
4
HOH
HOH
60
B
HOH
61
4
HOH
HOH
61
B
HOH
62
4
HOH
HOH
62
B
HOH
63
4
HOH
HOH
63
B
HOH
64
4
HOH
HOH
64
B
HOH
65
4
HOH
HOH
65
B
HOH
66
4
HOH
HOH
66
B
HOH
74
4
HOH
HOH
74
B
HOH
77
4
HOH
HOH
77
B
HOH
84
4
HOH
HOH
84
B
HOH
85
4
HOH
HOH
85
B
HOH
86
4
HOH
HOH
86
B
HOH
87
4
HOH
HOH
87
B
HOH
88
4
HOH
HOH
88
B
HOH
96
4
HOH
HOH
96
B
HOH
97
4
HOH
HOH
97
B
HOH
99
4
HOH
HOH
99
B
HOH
100
4
HOH
HOH
100
B
HOH
102
4
HOH
HOH
102
B
HOH
109
4
HOH
HOH
109
B
HOH
110
4
HOH
HOH
110
B
ILE
16
n
1
ILE
16
A
VAL
17
n
2
VAL
17
A
GLY
18
n
3
GLY
18
A
GLY
19
n
4
GLY
19
A
TYR
20
n
5
TYR
20
A
THR
21
n
6
THR
21
A
CYS
22
n
7
CYS
22
A
ALA
23
n
8
ALA
23
A
ALA
24
n
9
ALA
24
A
ASN
25
n
10
ASN
25
A
SER
26
n
11
SER
26
A
ILE
27
n
12
ILE
27
A
PRO
28
n
13
PRO
28
A
TYR
29
n
14
TYR
29
A
GLN
30
n
15
GLN
30
A
VAL
31
n
16
VAL
31
A
SER
32
n
17
SER
32
A
LEU
33
n
18
LEU
33
A
ASN
34
n
19
ASN
34
A
SER
37
n
20
SER
37
A
GLY
38
n
21
GLY
38
A
SER
39
n
22
SER
39
A
HIS
40
n
23
HIS
40
A
PHE
41
n
24
PHE
41
A
CYS
42
n
25
CYS
42
A
GLY
43
n
26
GLY
43
A
GLY
44
n
27
GLY
44
A
SER
45
n
28
SER
45
A
LEU
46
n
29
LEU
46
A
ILE
47
n
30
ILE
47
A
ASN
48
n
31
ASN
48
A
SER
49
n
32
SER
49
A
GLN
50
n
33
GLN
50
A
TRP
51
n
34
TRP
51
A
VAL
52
n
35
VAL
52
A
VAL
53
n
36
VAL
53
A
SER
54
n
37
SER
54
A
ALA
55
n
38
ALA
55
A
ALA
56
n
39
ALA
56
A
HIS
57
n
40
HIS
57
A
CYS
58
n
41
CYS
58
A
TYR
59
n
42
TYR
59
A
LYS
60
n
43
LYS
60
A
SER
61
n
44
SER
61
A
ARG
62
n
45
ARG
62
A
ILE
63
n
46
ILE
63
A
GLN
64
n
47
GLN
64
A
VAL
65
n
48
VAL
65
A
ARG
66
n
49
ARG
66
A
LEU
67
n
50
LEU
67
A
GLY
69
n
51
GLY
69
A
GLU
70
n
52
GLU
70
A
HIS
71
n
53
HIS
71
A
ASN
72
n
54
ASN
72
A
ILE
73
n
55
ILE
73
A
ASP
74
n
56
ASP
74
A
VAL
75
n
57
VAL
75
A
LEU
76
n
58
LEU
76
A
GLU
77
n
59
GLU
77
A
GLY
78
n
60
GLY
78
A
ASN
79
n
61
ASN
79
A
GLU
80
n
62
GLU
80
A
GLN
81
n
63
GLN
81
A
PHE
82
n
64
PHE
82
A
ILE
83
n
65
ILE
83
A
ASN
84
n
66
ASN
84
A
ALA
85
n
67
ALA
85
A
ALA
86
n
68
ALA
86
A
LYS
87
n
69
LYS
87
A
ILE
88
n
70
ILE
88
A
ILE
89
n
71
ILE
89
A
THR
90
n
72
THR
90
A
HIS
91
n
73
HIS
91
A
PRO
92
n
74
PRO
92
A
ASN
93
n
75
ASN
93
A
PHE
94
n
76
PHE
94
A
ASN
95
n
77
ASN
95
A
GLY
96
n
78
GLY
96
A
ASN
97
n
79
ASN
97
A
THR
98
n
80
THR
98
A
LEU
99
n
81
LEU
99
A
ASP
100
n
82
ASP
100
A
ASN
101
n
83
ASN
101
A
ASP
102
n
84
ASP
102
A
ILE
103
n
85
ILE
103
A
MET
104
n
86
MET
104
A
LEU
105
n
87
LEU
105
A
ILE
106
n
88
ILE
106
A
LYS
107
n
89
LYS
107
A
LEU
108
n
90
LEU
108
A
SER
109
n
91
SER
109
A
SER
110
n
92
SER
110
A
PRO
111
n
93
PRO
111
A
ALA
112
n
94
ALA
112
A
THR
113
n
95
THR
113
A
LEU
114
n
96
LEU
114
A
ASN
115
n
97
ASN
115
A
SER
116
n
98
SER
116
A
ARG
117
n
99
ARG
117
A
VAL
118
n
100
VAL
118
A
ALA
119
n
101
ALA
119
A
THR
120
n
102
THR
120
A
VAL
121
n
103
VAL
121
A
SER
122
n
104
SER
122
A
LEU
123
n
105
LEU
123
A
PRO
124
n
106
PRO
124
A
ARG
125
n
107
ARG
125
A
SER
127
n
108
SER
127
A
CYS
128
n
109
CYS
128
A
ALA
129
n
110
ALA
129
A
ALA
130
n
111
ALA
130
A
ALA
132
n
112
ALA
132
A
GLY
133
n
113
GLY
133
A
THR
134
n
114
THR
134
A
GLU
135
n
115
GLU
135
A
CYS
136
n
116
CYS
136
A
LEU
137
n
117
LEU
137
A
ILE
138
n
118
ILE
138
A
SER
139
n
119
SER
139
A
GLY
140
n
120
GLY
140
A
TRP
141
n
121
TRP
141
A
GLY
142
n
122
GLY
142
A
ASN
143
n
123
ASN
143
A
THR
144
n
124
THR
144
A
LYS
145
n
125
LYS
145
A
SER
146
n
1
SER
146
B
SER
147
n
2
SER
147
B
GLY
148
n
3
GLY
148
B
SER
149
n
4
SER
149
B
SER
150
n
5
SER
150
B
TYR
151
n
6
TYR
151
B
PRO
152
n
7
PRO
152
B
SER
153
n
8
SER
153
B
LEU
154
n
9
LEU
154
B
LEU
155
n
10
LEU
155
B
GLN
156
n
11
GLN
156
B
CYS
157
n
12
CYS
157
B
LEU
158
n
13
LEU
158
B
LYS
159
n
14
LYS
159
B
ALA
160
n
15
ALA
160
B
PRO
161
n
16
PRO
161
B
VAL
162
n
17
VAL
162
B
LEU
163
n
18
LEU
163
B
SER
164
n
19
SER
164
B
ASN
165
n
20
ASN
165
B
SER
166
n
21
SER
166
B
SER
167
n
22
SER
167
B
CYS
168
n
23
CYS
168
B
LYS
169
n
24
LYS
169
B
SER
170
n
25
SER
170
B
SER
171
n
26
SER
171
B
TYR
172
n
27
TYR
172
B
PRO
173
n
28
PRO
173
B
GLY
174
n
29
GLY
174
B
GLN
175
n
30
GLN
175
B
ILE
176
n
31
ILE
176
B
THR
177
n
32
THR
177
B
GLY
178
n
33
GLY
178
B
ASN
179
n
34
ASN
179
B
MET
180
n
35
MET
180
B
ILE
181
n
36
ILE
181
B
CYS
182
n
37
CYS
182
B
VAL
183
n
38
VAL
183
B
GLY
184
n
39
A
GLY
184
B
PHE
184
n
40
PHE
184
B
LEU
185
n
41
LEU
185
B
GLN
186
n
42
GLN
186
B
GLY
187
n
43
GLY
187
B
GLY
188
n
44
A
GLY
188
B
LYS
188
n
45
LYS
188
B
ASP
189
n
46
ASP
189
B
SER
190
n
47
SER
190
B
CYS
191
n
48
CYS
191
B
GLN
192
n
49
GLN
192
B
GLY
193
n
50
GLY
193
B
ASP
194
n
51
ASP
194
B
SER
195
n
52
SER
195
B
GLY
196
n
53
GLY
196
B
GLY
197
n
54
GLY
197
B
PRO
198
n
55
PRO
198
B
VAL
199
n
56
VAL
199
B
VAL
200
n
57
VAL
200
B
CYS
201
n
58
CYS
201
B
ASN
202
n
59
ASN
202
B
GLY
203
n
60
GLY
203
B
GLN
204
n
61
GLN
204
B
LEU
209
n
62
LEU
209
B
GLN
210
n
63
GLN
210
B
GLY
211
n
64
GLY
211
B
ILE
212
n
65
ILE
212
B
VAL
213
n
66
VAL
213
B
SER
214
n
67
SER
214
B
TRP
215
n
68
TRP
215
B
GLY
216
n
69
GLY
216
B
TYR
217
n
70
TYR
217
B
GLY
219
n
71
GLY
219
B
CYS
220
n
72
CYS
220
B
ALA
221
n
73
A
ALA
221
B
GLN
221
n
74
GLN
221
B
LYS
222
n
75
LYS
222
B
ASN
223
n
76
ASN
223
B
LYS
224
n
77
LYS
224
B
PRO
225
n
78
PRO
225
B
GLY
226
n
79
GLY
226
B
VAL
227
n
80
VAL
227
B
TYR
228
n
81
TYR
228
B
THR
229
n
82
THR
229
B
LYS
230
n
83
LYS
230
B
VAL
231
n
84
VAL
231
B
CYS
232
n
85
CYS
232
B
ASN
233
n
86
ASN
233
B
TYR
234
n
87
TYR
234
B
VAL
235
n
88
VAL
235
B
ASN
236
n
89
ASN
236
B
TRP
237
n
90
TRP
237
B
ILE
238
n
91
ILE
238
B
GLN
239
n
92
GLN
239
B
GLN
240
n
93
GLN
240
B
THR
241
n
94
THR
241
B
ILE
242
n
95
ILE
242
B
ALA
243
n
96
ALA
243
B
ALA
244
n
97
ALA
244
B
ASN
245
n
98
ASN
245
B
author_and_software_defined_assembly
PISA
2
dimeric
5640
-55
9220
A
GLU
70
A
OE1
GLU
52
1_555
A
CA
146
C
CA
CA
1_555
A
ASN
72
A
O
ASN
54
1_555
87.9
A
GLU
70
A
OE1
GLU
52
1_555
A
CA
146
C
CA
CA
1_555
A
VAL
75
A
O
VAL
57
1_555
143.2
A
ASN
72
A
O
ASN
54
1_555
A
CA
146
C
CA
CA
1_555
A
VAL
75
A
O
VAL
57
1_555
87.6
A
GLU
70
A
OE1
GLU
52
1_555
A
CA
146
C
CA
CA
1_555
A
GLU
77
A
OE2
GLU
59
1_555
100.5
A
ASN
72
A
O
ASN
54
1_555
A
CA
146
C
CA
CA
1_555
A
GLU
77
A
OE2
GLU
59
1_555
108.7
A
VAL
75
A
O
VAL
57
1_555
A
CA
146
C
CA
CA
1_555
A
GLU
77
A
OE2
GLU
59
1_555
115.5
A
GLU
70
A
OE1
GLU
52
1_555
A
CA
146
C
CA
CA
1_555
A
GLU
80
A
OE2
GLU
62
1_555
94.0
A
ASN
72
A
O
ASN
54
1_555
A
CA
146
C
CA
CA
1_555
A
GLU
80
A
OE2
GLU
62
1_555
175.0
A
VAL
75
A
O
VAL
57
1_555
A
CA
146
C
CA
CA
1_555
A
GLU
80
A
OE2
GLU
62
1_555
88.1
A
GLU
77
A
OE2
GLU
59
1_555
A
CA
146
C
CA
CA
1_555
A
GLU
80
A
OE2
GLU
62
1_555
75.5
A
GLU
70
A
OE1
GLU
52
1_555
A
CA
146
C
CA
CA
1_555
A
HOH
197
D
O
HOH
1_555
74.0
A
ASN
72
A
O
ASN
54
1_555
A
CA
146
C
CA
CA
1_555
A
HOH
197
D
O
HOH
1_555
92.9
A
VAL
75
A
O
VAL
57
1_555
A
CA
146
C
CA
CA
1_555
A
HOH
197
D
O
HOH
1_555
69.8
A
GLU
77
A
OE2
GLU
59
1_555
A
CA
146
C
CA
CA
1_555
A
HOH
197
D
O
HOH
1_555
157.6
A
GLU
80
A
OE2
GLU
62
1_555
A
CA
146
C
CA
CA
1_555
A
HOH
197
D
O
HOH
1_555
83.2
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
A
O
GLN
81
A
O
GLN
63
A
N
LEU
67
A
N
LEU
50
A
O
GLN
64
A
O
GLN
47
A
N
ASN
34
A
N
ASN
19
A
O
VAL
31
A
O
VAL
16
A
N
GLY
44
A
N
GLY
27
A
O
VAL
52
A
O
VAL
35
A
N
ILE
106
A
N
ILE
88
A
O
LEU
105
A
O
LEU
87
A
N
ILE
89
A
N
ILE
71
A
O
CYS
136
A
O
CYS
116
B
N
ALA
160
B
N
ALA
15
B
O
ILE
181
B
O
ILE
36
B
N
TYR
228
B
N
TYR
81
B
O
VAL
227
B
O
VAL
80
B
N
TRP
215
B
N
TRP
68
B
O
GLN
204
B
O
GLN
61
B
N
CYS
201
B
N
CYS
58
1
A
A
HD1
H
HIS
ASN
91
93
1.25
1
A
A
O
H1
HOH
HOH
150
214
1.58
1
B
B
H
HD21
CYS
ASN
220
236
1.33
1_555
3_645
1
A
HIS
71
-126.12
-64.23
1
B
SER
150
168.11
97.76
0.2
0.2
1.8
8.0
17698
1
1.0
1.8
8.0
111
2143
0
0
2032
0.011
1.68
26.85
refinement
X-PLOR
CRYSTAL STRUCTURE OF THE FIRST ACTIVE AUTOLYSATE FORM OF THE PORCINE ALPHA TRYPSIN
1
N
N
2
N
N
3
N
N
4
N
N
4
N
N
A
ALA
56
A
ALA
39
HELX_P
A
CYS
58
A
CYS
41
5
H1
3
B
ASN
165
B
ASN
20
HELX_P
B
SER
171
B
SER
26
1
H2
7
B
VAL
231
B
VAL
84
HELX_P
B
ASN
233
B
ASN
86
5
H3
3
B
VAL
235
B
VAL
88
HELX_P
B
ALA
244
B
ALA
97
1
H4
10
disulf
2.053
A
CYS
22
A
SG
CYS
7
1_555
B
CYS
157
B
SG
CYS
12
1_555
disulf
2.054
A
CYS
42
A
SG
CYS
25
1_555
A
CYS
58
A
SG
CYS
41
1_555
disulf
2.044
A
CYS
128
A
SG
CYS
109
1_555
B
CYS
232
B
SG
CYS
85
1_555
disulf
2.036
A
CYS
136
A
SG
CYS
116
1_555
B
CYS
201
B
SG
CYS
58
1_555
disulf
2.043
B
CYS
168
B
SG
CYS
23
1_555
B
CYS
182
B
SG
CYS
37
1_555
disulf
2.046
B
CYS
191
B
SG
CYS
48
1_555
B
CYS
220
B
SG
CYS
72
1_555
metalc
2.343
A
GLU
70
A
OE1
GLU
52
1_555
A
CA
146
C
CA
CA
1_555
metalc
2.109
A
ASN
72
A
O
ASN
54
1_555
A
CA
146
C
CA
CA
1_555
metalc
2.264
A
VAL
75
A
O
VAL
57
1_555
A
CA
146
C
CA
CA
1_555
metalc
1.885
A
GLU
77
A
OE2
GLU
59
1_555
A
CA
146
C
CA
CA
1_555
metalc
2.497
A
GLU
80
A
OE2
GLU
62
1_555
A
CA
146
C
CA
CA
1_555
metalc
1.582
A
CA
146
C
CA
CA
1_555
A
HOH
197
D
O
HOH
1_555
SERINE PROTEASE
HYDROLASE, SERINE PROTEASE
TRYP_PIG
UNP
1
9
P00761
TRYP_PIG
UNP
2
134
P00761
9
133
1AKS
16
145
P00761
A
1
1
125
134
231
1AKS
146
245
P00761
B
2
1
98
2
ASP
conflict
ASN
165
1AKS
B
P00761
UNP
153
20
2
GLU
conflict
GLN
186
1AKS
B
P00761
UNP
175
42
4
3
2
4
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
A
GLN
81
A
GLN
63
A
ASN
84
A
ASN
66
A
GLN
64
A
GLN
47
A
LEU
67
A
LEU
50
A
GLN
30
A
GLN
15
A
ASN
34
A
ASN
19
A
HIS
40
A
HIS
23
A
SER
45
A
SER
28
A
TRP
51
A
TRP
34
A
SER
54
A
SER
37
A
MET
104
A
MET
86
A
LEU
108
A
LEU
90
A
ALA
85
A
ALA
67
A
THR
90
A
THR
72
A
GLU
135
A
GLU
115
A
GLY
140
A
GLY
120
B
GLN
156
B
GLN
11
B
PRO
161
B
PRO
16
B
MET
180
B
MET
35
B
VAL
183
B
VAL
38
B
GLY
226
B
GLY
79
B
LYS
230
B
LYS
83
B
GLN
204
B
GLN
61
B
TRP
215
B
TRP
68
B
PRO
198
B
PRO
55
B
CYS
201
B
CYS
58
BINDING SITE FOR RESIDUE CA A 146
A
CA
146
Software
6
A
GLU
70
A
GLU
52
6
1_555
A
ASN
72
A
ASN
54
6
1_555
A
VAL
75
A
VAL
57
6
1_555
A
GLU
77
A
GLU
59
6
1_555
A
GLU
80
A
GLU
62
6
1_555
A
HOH
197
D
HOH
6
1_555
19
P 21 21 21