0.020496
0.000000
0.000000
0.000000
0.014959
0.000000
0.000000
0.000000
0.010414
0.00000
0.00000
0.00000
Bukrinsky, J.T.
Bjerrum, M.J.
Kadziola, A.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
4
90.00
90.00
90.00
48.790
66.850
96.020
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
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
H O -1
17.007
HYDROXIDE ION
non-polymer
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
Zn 2
65.409
ZINC ION
non-polymer
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
R
C
N
76
N
C
N
77
N
O
N
78
N
C
N
79
N
S
N
80
N
O
N
81
N
H
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
N
N
89
S
C
N
90
N
C
N
91
N
O
N
92
N
C
N
93
N
C
N
94
N
C
N
95
N
O
N
96
N
N
N
97
N
O
N
98
N
H
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
N
N
109
S
C
N
110
N
C
N
111
N
O
N
112
N
C
N
113
N
C
N
114
N
C
N
115
N
O
N
116
N
O
N
117
N
O
N
118
N
H
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
N
N
128
N
C
N
129
N
C
N
130
N
O
N
131
N
O
N
132
N
H
N
133
N
H
N
134
N
H
N
135
N
H
N
136
N
H
N
137
N
N
N
138
S
C
N
139
N
C
N
140
N
O
N
141
N
C
Y
142
N
C
Y
143
N
N
Y
144
N
C
Y
145
N
C
Y
146
N
N
N
147
N
O
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
O
N
159
N
H
N
160
N
H
N
161
N
N
N
162
S
C
N
163
N
C
N
164
N
O
N
165
S
C
N
166
N
C
N
167
N
C
N
168
N
C
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
H
N
178
N
H
N
179
N
H
N
180
N
H
N
181
N
H
N
182
N
H
N
183
N
N
N
184
S
C
N
185
N
C
N
186
N
O
N
187
N
C
N
188
N
C
N
189
N
C
N
190
N
C
N
191
N
O
N
192
N
H
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
N
N
206
S
C
N
207
N
C
N
208
N
O
N
209
N
C
N
210
N
C
N
211
N
C
N
212
N
C
N
213
N
N
N
214
N
O
N
215
N
H
N
216
N
H
N
217
N
H
N
218
N
H
N
219
N
H
N
220
N
H
N
221
N
H
N
222
N
H
N
223
N
H
N
224
N
H
N
225
N
H
N
226
N
H
N
227
N
H
N
228
N
H
N
229
N
H
N
230
N
N
N
231
S
C
N
232
N
C
N
233
N
O
N
234
N
C
N
235
N
C
N
236
N
S
N
237
N
C
N
238
N
O
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
H
N
248
N
H
N
249
N
H
N
250
N
O
N
251
N
H
N
252
N
N
N
253
S
C
N
254
N
C
N
255
N
O
N
256
N
C
Y
257
N
C
Y
258
N
C
Y
259
N
C
Y
260
N
C
Y
261
N
C
Y
262
N
C
N
263
N
O
N
264
N
H
N
265
N
H
N
266
N
H
N
267
N
H
N
268
N
H
N
269
N
H
N
270
N
H
N
271
N
H
N
272
N
H
N
273
N
H
N
274
N
H
N
275
N
N
N
276
S
C
N
277
N
C
N
278
N
O
N
279
N
C
N
280
N
C
N
281
N
C
N
282
N
O
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
N
N
293
S
C
N
294
N
C
N
295
N
O
N
296
N
C
N
297
N
O
N
298
N
O
N
299
N
H
N
300
N
H
N
301
N
H
N
302
N
H
N
303
N
H
N
304
N
H
N
305
N
H
N
306
N
N
N
307
S
C
N
308
N
C
N
309
N
O
N
310
R
C
N
311
N
O
N
312
N
C
N
313
N
O
N
314
N
H
N
315
N
H
N
316
N
H
N
317
N
H
N
318
N
H
N
319
N
H
N
320
N
H
N
321
N
H
N
322
N
H
N
323
N
N
N
324
S
C
N
325
N
C
N
326
N
O
N
327
N
C
Y
328
N
C
Y
329
N
C
Y
330
N
C
Y
331
N
N
Y
332
N
C
Y
333
N
C
Y
334
N
C
Y
335
N
C
Y
336
N
C
N
337
N
O
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
H
N
350
N
N
N
351
S
C
N
352
N
C
N
353
N
O
N
354
N
C
Y
355
N
C
Y
356
N
C
Y
357
N
C
Y
358
N
C
Y
359
N
C
Y
360
N
C
N
361
N
O
N
362
N
O
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
H
N
374
N
N
N
375
S
C
N
376
N
C
N
377
N
O
N
378
N
C
N
379
N
C
N
380
N
C
N
381
N
O
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
392
N
H
N
393
N
ZN
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
sing
N
244
N
doub
N
245
N
sing
N
246
N
sing
N
247
N
sing
N
248
N
sing
Y
249
N
doub
Y
250
N
sing
Y
251
N
sing
N
252
N
sing
Y
253
N
doub
N
254
N
sing
Y
255
N
doub
N
256
N
sing
Y
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
doub
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
sing
N
284
N
doub
N
285
N
sing
N
286
N
sing
N
287
N
sing
N
288
N
sing
N
289
N
sing
N
290
N
sing
N
291
N
sing
N
292
N
sing
N
293
N
sing
N
294
N
sing
N
295
N
sing
N
296
N
sing
N
297
N
doub
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
doub
N
314
N
sing
N
315
N
sing
N
316
N
sing
N
317
N
sing
Y
318
N
doub
Y
319
N
sing
Y
320
N
sing
N
321
N
sing
Y
322
N
doub
Y
323
N
sing
Y
324
N
sing
N
325
N
sing
Y
326
N
sing
Y
327
N
doub
N
328
N
sing
Y
329
N
doub
N
330
N
sing
Y
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
sing
N
341
N
doub
N
342
N
sing
N
343
N
sing
N
344
N
sing
N
345
N
sing
Y
346
N
doub
Y
347
N
sing
Y
348
N
sing
N
349
N
sing
Y
350
N
doub
N
351
N
sing
Y
352
N
doub
N
353
N
sing
Y
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
sing
N
365
N
doub
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
N
376
N
sing
US
Biochemistry
BICHAW
0033
0006-2960
37
16555
16564
10.1021/bi981678i
9843422
Native carboxypeptidase A in a new crystal environment reveals a different conformation of the important tyrosine 248.
1998
10.2210/pdb1cpx/pdb
pdb_00001cpx
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
290
1
IMAGE PLATE
1996-12-06
RIGAKU RAXIS II
GRAPHITE
SINGLE WAVELENGTH
M
x-ray
1
1.54
1.0
1.54
ROTATING ANODE
RIGAKU RU200
TRUNCATED FORM OF CPA (RESIDUES 3-307 I.E. THE BETA FORM) INDUCED BY TRACES OF TRYPSIN
34445.418
PROTEIN (CARBOXYPEPTIDASE A)
3.4.17.1
1
nat
polymer
65.409
ZINC ION
2
syn
non-polymer
17.007
HYDROXIDE ION
1
syn
non-polymer
18.015
water
277
nat
water
CPA, BETA FORM
E.C.3.4.17.1 HYDROLASE
no
no
ARSTNTFNYATYHTLDEIYDFMDLLVAEHPQLVSKLQIGRSYEGRPIYVLKFSTGGSNRPAIWIDLGIHSREWITQATGV
WFAKKFTEDYGQDPSFTAILDSMDIFLEIVTNPDGFAFTHSQNRLWRKTRSVTSSSLCVGVDANRNWDAGFGKAGASSSP
CSETYHGKYANSEVEVKSIVDFVKDHGNFKAFLSIHSYSQLLLYPYGYTTQSIPDKTELNQVAKSAVAALKSLYGTSYKY
GSIITTIYQASGGSIDWSYNQGIKYSFTFELRDTGRYGFLLPASQIIPTAQETWLGVLTIMEHTVNN
ARSTNTFNYATYHTLDEIYDFMDLLVAEHPQLVSKLQIGRSYEGRPIYVLKFSTGGSNRPAIWIDLGIHSREWITQATGV
WFAKKFTEDYGQDPSFTAILDSMDIFLEIVTNPDGFAFTHSQNRLWRKTRSVTSSSLCVGVDANRNWDAGFGKAGASSSP
CSETYHGKYANSEVEVKSIVDFVKDHGNFKAFLSIHSYSQLLLYPYGYTTQSIPDKTELNQVAKSAVAALKSLYGTSYKY
GSIITTIYQASGGSIDWSYNQGIKYSFTFELRDTGRYGFLLPASQIIPTAQETWLGVLTIMEHTVNN
A
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
cattle
SIGMA #C0261; COX ET AL. (1964) BIOCHEMISTRY 3, 44-47
Bos
sample
9913
PANCREAS
Bos taurus
1
2.25
45
MICRODIALYSIS
7.5
CPA FROM SIGMA #C0261 WAS DISSOLVED IN 1.0 M LICL WITH 20 MM TRIS-HCL PH 7.5 TO GIVE 12 MG/ML AND USED WITHOUT FURTHER PURIFICATION. THIS PROTEIN SOLUTION WAS PLACED IN 50 MICROL DIALYSIS BUTTONS FROM HAMPTON RESEARCH AND DIALYZED AGAINST A 2 ML RESERVOIR OF THE ABOVE MENTIONED BUFFER WHILE LOWERING THE EXTERNAL LICL CONCENTRATION BY 25% EVERY OTHER DAY. THE CRYSTALS APPEARED A~0.24 M LICL AND WAS STORED AT 0.30M LICL. IF THIS PROCEDURE DOES NOT WORK BY ITSELF AND YOU END UP WITH THE MONOCLINIC ALPHA-FORM (1-307), YOU CAN TRY TO AD TRACES OF TRYPSIN (~10 MICROG/ML) TO THE PROTEIN SOLUTION TO PROVOKE FORMATION OF THE BETA-FORM (3-307), micro dialysis
chem_comp_atom
chem_comp_bond
database_2
pdbx_initial_refinement_model
pdbx_struct_conn_angle
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
1998-08-05
1
1
2007-10-16
1
2
2011-07-13
1
3
2023-08-09
_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
_struct_ref_seq_dif.details
_struct_site.pdbx_auth_asym_id
_struct_site.pdbx_auth_comp_id
_struct_site.pdbx_auth_seq_id
BNL
Y
RCSB
1998-07-27
REL
REL
ZN
ZINC ION
OH
HYDROXIDE ION
HOH
water
ZN 308 IS THE CATALYTIC ZINC AND
ZN 309 IS THE INHIBITORY ZINC
OH 541 IS THE HYDROXIDE ION, WHICH BRIDGES THE CATALYTIC
ZINC (ZN 308) AND THE INHIBITORY ZINC (ZN309)
SER 3 - ASN 307, I.E. THE BETA FORM OF CPA
5CPA
5CPA WITHOUT WATERS AND ZN
PDB
experimental model
ZN
308
2
ZN
ZN
308
A
ZN
309
2
ZN
ZN
309
A
OH
541
3
OH
OH
541
A
HOH
401
4
HOH
HOH
401
A
HOH
402
4
HOH
HOH
402
A
HOH
403
4
HOH
HOH
403
A
HOH
404
4
HOH
HOH
404
A
HOH
405
4
HOH
HOH
405
A
HOH
406
4
HOH
HOH
406
A
HOH
407
4
HOH
HOH
407
A
HOH
408
4
HOH
HOH
408
A
HOH
409
4
HOH
HOH
409
A
HOH
410
4
HOH
HOH
410
A
HOH
411
4
HOH
HOH
411
A
HOH
412
4
HOH
HOH
412
A
HOH
413
4
HOH
HOH
413
A
HOH
414
4
HOH
HOH
414
A
HOH
415
4
HOH
HOH
415
A
HOH
416
4
HOH
HOH
416
A
HOH
417
4
HOH
HOH
417
A
HOH
418
4
HOH
HOH
418
A
HOH
419
4
HOH
HOH
419
A
HOH
420
4
HOH
HOH
420
A
HOH
421
4
HOH
HOH
421
A
HOH
422
4
HOH
HOH
422
A
HOH
423
4
HOH
HOH
423
A
HOH
424
4
HOH
HOH
424
A
HOH
425
4
HOH
HOH
425
A
HOH
426
4
HOH
HOH
426
A
HOH
427
4
HOH
HOH
427
A
HOH
428
4
HOH
HOH
428
A
HOH
429
4
HOH
HOH
429
A
HOH
430
4
HOH
HOH
430
A
HOH
431
4
HOH
HOH
431
A
HOH
432
4
HOH
HOH
432
A
HOH
433
4
HOH
HOH
433
A
HOH
434
4
HOH
HOH
434
A
HOH
435
4
HOH
HOH
435
A
HOH
436
4
HOH
HOH
436
A
HOH
437
4
HOH
HOH
437
A
HOH
438
4
HOH
HOH
438
A
HOH
439
4
HOH
HOH
439
A
HOH
440
4
HOH
HOH
440
A
HOH
441
4
HOH
HOH
441
A
HOH
442
4
HOH
HOH
442
A
HOH
443
4
HOH
HOH
443
A
HOH
444
4
HOH
HOH
444
A
HOH
445
4
HOH
HOH
445
A
HOH
446
4
HOH
HOH
446
A
HOH
447
4
HOH
HOH
447
A
HOH
448
4
HOH
HOH
448
A
HOH
449
4
HOH
HOH
449
A
HOH
450
4
HOH
HOH
450
A
HOH
451
4
HOH
HOH
451
A
HOH
452
4
HOH
HOH
452
A
HOH
453
4
HOH
HOH
453
A
HOH
454
4
HOH
HOH
454
A
HOH
455
4
HOH
HOH
455
A
HOH
456
4
HOH
HOH
456
A
HOH
457
4
HOH
HOH
457
A
HOH
458
4
HOH
HOH
458
A
HOH
459
4
HOH
HOH
459
A
HOH
460
4
HOH
HOH
460
A
HOH
461
4
HOH
HOH
461
A
HOH
462
4
HOH
HOH
462
A
HOH
463
4
HOH
HOH
463
A
HOH
464
4
HOH
HOH
464
A
HOH
465
4
HOH
HOH
465
A
HOH
466
4
HOH
HOH
466
A
HOH
467
4
HOH
HOH
467
A
HOH
468
4
HOH
HOH
468
A
HOH
469
4
HOH
HOH
469
A
HOH
470
4
HOH
HOH
470
A
HOH
471
4
HOH
HOH
471
A
HOH
472
4
HOH
HOH
472
A
HOH
473
4
HOH
HOH
473
A
HOH
474
4
HOH
HOH
474
A
HOH
475
4
HOH
HOH
475
A
HOH
476
4
HOH
HOH
476
A
HOH
477
4
HOH
HOH
477
A
HOH
478
4
HOH
HOH
478
A
HOH
479
4
HOH
HOH
479
A
HOH
480
4
HOH
HOH
480
A
HOH
481
4
HOH
HOH
481
A
HOH
482
4
HOH
HOH
482
A
HOH
483
4
HOH
HOH
483
A
HOH
484
4
HOH
HOH
484
A
HOH
485
4
HOH
HOH
485
A
HOH
486
4
HOH
HOH
486
A
HOH
487
4
HOH
HOH
487
A
HOH
488
4
HOH
HOH
488
A
HOH
489
4
HOH
HOH
489
A
HOH
490
4
HOH
HOH
490
A
HOH
491
4
HOH
HOH
491
A
HOH
492
4
HOH
HOH
492
A
HOH
493
4
HOH
HOH
493
A
HOH
494
4
HOH
HOH
494
A
HOH
495
4
HOH
HOH
495
A
HOH
496
4
HOH
HOH
496
A
HOH
497
4
HOH
HOH
497
A
HOH
498
4
HOH
HOH
498
A
HOH
499
4
HOH
HOH
499
A
HOH
500
4
HOH
HOH
500
A
HOH
501
4
HOH
HOH
501
A
HOH
502
4
HOH
HOH
502
A
HOH
503
4
HOH
HOH
503
A
HOH
504
4
HOH
HOH
504
A
HOH
505
4
HOH
HOH
505
A
HOH
506
4
HOH
HOH
506
A
HOH
507
4
HOH
HOH
507
A
HOH
508
4
HOH
HOH
508
A
HOH
509
4
HOH
HOH
509
A
HOH
510
4
HOH
HOH
510
A
HOH
511
4
HOH
HOH
511
A
HOH
512
4
HOH
HOH
512
A
HOH
513
4
HOH
HOH
513
A
HOH
514
4
HOH
HOH
514
A
HOH
515
4
HOH
HOH
515
A
HOH
516
4
HOH
HOH
516
A
HOH
517
4
HOH
HOH
517
A
HOH
518
4
HOH
HOH
518
A
HOH
519
4
HOH
HOH
519
A
HOH
520
4
HOH
HOH
520
A
HOH
521
4
HOH
HOH
521
A
HOH
522
4
HOH
HOH
522
A
HOH
523
4
HOH
HOH
523
A
HOH
524
4
HOH
HOH
524
A
HOH
525
4
HOH
HOH
525
A
HOH
526
4
HOH
HOH
526
A
HOH
527
4
HOH
HOH
527
A
HOH
528
4
HOH
HOH
528
A
HOH
529
4
HOH
HOH
529
A
HOH
530
4
HOH
HOH
530
A
HOH
531
4
HOH
HOH
531
A
HOH
532
4
HOH
HOH
532
A
HOH
533
4
HOH
HOH
533
A
HOH
534
4
HOH
HOH
534
A
HOH
535
4
HOH
HOH
535
A
HOH
536
4
HOH
HOH
536
A
HOH
537
4
HOH
HOH
537
A
HOH
538
4
HOH
HOH
538
A
HOH
539
4
HOH
HOH
539
A
HOH
540
4
HOH
HOH
540
A
HOH
542
4
HOH
HOH
542
A
HOH
543
4
HOH
HOH
543
A
HOH
544
4
HOH
HOH
544
A
HOH
545
4
HOH
HOH
545
A
HOH
546
4
HOH
HOH
546
A
HOH
547
4
HOH
HOH
547
A
HOH
548
4
HOH
HOH
548
A
HOH
549
4
HOH
HOH
549
A
HOH
550
4
HOH
HOH
550
A
HOH
551
4
HOH
HOH
551
A
HOH
552
4
HOH
HOH
552
A
HOH
553
4
HOH
HOH
553
A
HOH
554
4
HOH
HOH
554
A
HOH
555
4
HOH
HOH
555
A
HOH
556
4
HOH
HOH
556
A
HOH
557
4
HOH
HOH
557
A
HOH
558
4
HOH
HOH
558
A
HOH
559
4
HOH
HOH
559
A
HOH
560
4
HOH
HOH
560
A
HOH
561
4
HOH
HOH
561
A
HOH
562
4
HOH
HOH
562
A
HOH
563
4
HOH
HOH
563
A
HOH
564
4
HOH
HOH
564
A
HOH
565
4
HOH
HOH
565
A
HOH
566
4
HOH
HOH
566
A
HOH
567
4
HOH
HOH
567
A
HOH
568
4
HOH
HOH
568
A
HOH
569
4
HOH
HOH
569
A
HOH
570
4
HOH
HOH
570
A
HOH
571
4
HOH
HOH
571
A
HOH
572
4
HOH
HOH
572
A
HOH
573
4
HOH
HOH
573
A
HOH
574
4
HOH
HOH
574
A
HOH
575
4
HOH
HOH
575
A
HOH
576
4
HOH
HOH
576
A
HOH
577
4
HOH
HOH
577
A
HOH
578
4
HOH
HOH
578
A
HOH
579
4
HOH
HOH
579
A
HOH
580
4
HOH
HOH
580
A
HOH
581
4
HOH
HOH
581
A
HOH
582
4
HOH
HOH
582
A
HOH
583
4
HOH
HOH
583
A
HOH
584
4
HOH
HOH
584
A
HOH
585
4
HOH
HOH
585
A
HOH
586
4
HOH
HOH
586
A
HOH
587
4
HOH
HOH
587
A
HOH
588
4
HOH
HOH
588
A
HOH
589
4
HOH
HOH
589
A
HOH
590
4
HOH
HOH
590
A
HOH
591
4
HOH
HOH
591
A
HOH
592
4
HOH
HOH
592
A
HOH
593
4
HOH
HOH
593
A
HOH
594
4
HOH
HOH
594
A
HOH
595
4
HOH
HOH
595
A
HOH
596
4
HOH
HOH
596
A
HOH
597
4
HOH
HOH
597
A
HOH
598
4
HOH
HOH
598
A
HOH
599
4
HOH
HOH
599
A
HOH
600
4
HOH
HOH
600
A
HOH
601
4
HOH
HOH
601
A
HOH
602
4
HOH
HOH
602
A
HOH
603
4
HOH
HOH
603
A
HOH
604
4
HOH
HOH
604
A
HOH
605
4
HOH
HOH
605
A
HOH
606
4
HOH
HOH
606
A
HOH
607
4
HOH
HOH
607
A
HOH
608
4
HOH
HOH
608
A
HOH
609
4
HOH
HOH
609
A
HOH
610
4
HOH
HOH
610
A
HOH
611
4
HOH
HOH
611
A
HOH
612
4
HOH
HOH
612
A
HOH
613
4
HOH
HOH
613
A
HOH
614
4
HOH
HOH
614
A
HOH
615
4
HOH
HOH
615
A
HOH
616
4
HOH
HOH
616
A
HOH
617
4
HOH
HOH
617
A
HOH
618
4
HOH
HOH
618
A
HOH
619
4
HOH
HOH
619
A
HOH
620
4
HOH
HOH
620
A
HOH
621
4
HOH
HOH
621
A
HOH
622
4
HOH
HOH
622
A
HOH
623
4
HOH
HOH
623
A
HOH
624
4
HOH
HOH
624
A
HOH
625
4
HOH
HOH
625
A
HOH
626
4
HOH
HOH
626
A
HOH
627
4
HOH
HOH
627
A
HOH
628
4
HOH
HOH
628
A
HOH
629
4
HOH
HOH
629
A
HOH
630
4
HOH
HOH
630
A
HOH
631
4
HOH
HOH
631
A
HOH
632
4
HOH
HOH
632
A
HOH
633
4
HOH
HOH
633
A
HOH
634
4
HOH
HOH
634
A
HOH
635
4
HOH
HOH
635
A
HOH
636
4
HOH
HOH
636
A
HOH
637
4
HOH
HOH
637
A
HOH
638
4
HOH
HOH
638
A
HOH
639
4
HOH
HOH
639
A
HOH
640
4
HOH
HOH
640
A
HOH
641
4
HOH
HOH
641
A
HOH
642
4
HOH
HOH
642
A
HOH
643
4
HOH
HOH
643
A
HOH
644
4
HOH
HOH
644
A
HOH
645
4
HOH
HOH
645
A
HOH
646
4
HOH
HOH
646
A
HOH
647
4
HOH
HOH
647
A
HOH
648
4
HOH
HOH
648
A
HOH
649
4
HOH
HOH
649
A
HOH
650
4
HOH
HOH
650
A
HOH
651
4
HOH
HOH
651
A
HOH
652
4
HOH
HOH
652
A
HOH
653
4
HOH
HOH
653
A
HOH
654
4
HOH
HOH
654
A
HOH
655
4
HOH
HOH
655
A
HOH
656
4
HOH
HOH
656
A
HOH
657
4
HOH
HOH
657
A
HOH
658
4
HOH
HOH
658
A
HOH
659
4
HOH
HOH
659
A
HOH
660
4
HOH
HOH
660
A
HOH
661
4
HOH
HOH
661
A
HOH
662
4
HOH
HOH
662
A
HOH
663
4
HOH
HOH
663
A
HOH
664
4
HOH
HOH
664
A
HOH
665
4
HOH
HOH
665
A
HOH
666
4
HOH
HOH
666
A
HOH
667
4
HOH
HOH
667
A
HOH
668
4
HOH
HOH
668
A
HOH
669
4
HOH
HOH
669
A
HOH
670
4
HOH
HOH
670
A
HOH
671
4
HOH
HOH
671
A
HOH
672
4
HOH
HOH
672
A
HOH
673
4
HOH
HOH
673
A
HOH
674
4
HOH
HOH
674
A
HOH
675
4
HOH
HOH
675
A
HOH
676
4
HOH
HOH
676
A
HOH
677
4
HOH
HOH
677
A
HOH
678
4
HOH
HOH
678
A
n
1
1
A
n
2
2
A
SER
3
n
3
SER
3
A
THR
4
n
4
THR
4
A
ASN
5
n
5
ASN
5
A
THR
6
n
6
THR
6
A
PHE
7
n
7
PHE
7
A
ASN
8
n
8
ASN
8
A
TYR
9
n
9
TYR
9
A
ALA
10
n
10
ALA
10
A
THR
11
n
11
THR
11
A
TYR
12
n
12
TYR
12
A
HIS
13
n
13
HIS
13
A
THR
14
n
14
THR
14
A
LEU
15
n
15
LEU
15
A
ASP
16
n
16
ASP
16
A
GLU
17
n
17
GLU
17
A
ILE
18
n
18
ILE
18
A
TYR
19
n
19
TYR
19
A
ASP
20
n
20
ASP
20
A
PHE
21
n
21
PHE
21
A
MET
22
n
22
MET
22
A
ASP
23
n
23
ASP
23
A
LEU
24
n
24
LEU
24
A
LEU
25
n
25
LEU
25
A
VAL
26
n
26
VAL
26
A
ALA
27
n
27
ALA
27
A
GLU
28
n
28
GLU
28
A
HIS
29
n
29
HIS
29
A
PRO
30
n
30
PRO
30
A
GLN
31
n
31
GLN
31
A
LEU
32
n
32
LEU
32
A
VAL
33
n
33
VAL
33
A
SER
34
n
34
SER
34
A
LYS
35
n
35
LYS
35
A
LEU
36
n
36
LEU
36
A
GLN
37
n
37
GLN
37
A
ILE
38
n
38
ILE
38
A
GLY
39
n
39
GLY
39
A
ARG
40
n
40
ARG
40
A
SER
41
n
41
SER
41
A
TYR
42
n
42
TYR
42
A
GLU
43
n
43
GLU
43
A
GLY
44
n
44
GLY
44
A
ARG
45
n
45
ARG
45
A
PRO
46
n
46
PRO
46
A
ILE
47
n
47
ILE
47
A
TYR
48
n
48
TYR
48
A
VAL
49
n
49
VAL
49
A
LEU
50
n
50
LEU
50
A
LYS
51
n
51
LYS
51
A
PHE
52
n
52
PHE
52
A
SER
53
n
53
SER
53
A
THR
54
n
54
THR
54
A
GLY
55
n
55
GLY
55
A
GLY
56
n
56
GLY
56
A
SER
57
n
57
SER
57
A
ASN
58
n
58
ASN
58
A
ARG
59
n
59
ARG
59
A
PRO
60
n
60
PRO
60
A
ALA
61
n
61
ALA
61
A
ILE
62
n
62
ILE
62
A
TRP
63
n
63
TRP
63
A
ILE
64
n
64
ILE
64
A
ASP
65
n
65
ASP
65
A
LEU
66
n
66
LEU
66
A
GLY
67
n
67
GLY
67
A
ILE
68
n
68
ILE
68
A
HIS
69
n
69
HIS
69
A
SER
70
n
70
SER
70
A
ARG
71
n
71
ARG
71
A
GLU
72
n
72
GLU
72
A
TRP
73
n
73
TRP
73
A
ILE
74
n
74
ILE
74
A
THR
75
n
75
THR
75
A
GLN
76
n
76
GLN
76
A
ALA
77
n
77
ALA
77
A
THR
78
n
78
THR
78
A
GLY
79
n
79
GLY
79
A
VAL
80
n
80
VAL
80
A
TRP
81
n
81
TRP
81
A
PHE
82
n
82
PHE
82
A
ALA
83
n
83
ALA
83
A
LYS
84
n
84
LYS
84
A
LYS
85
n
85
LYS
85
A
PHE
86
n
86
PHE
86
A
THR
87
n
87
THR
87
A
GLU
88
n
88
GLU
88
A
ASP
89
n
89
ASP
89
A
TYR
90
n
90
TYR
90
A
GLY
91
n
91
GLY
91
A
GLN
92
n
92
GLN
92
A
ASP
93
n
93
ASP
93
A
PRO
94
n
94
PRO
94
A
SER
95
n
95
SER
95
A
PHE
96
n
96
PHE
96
A
THR
97
n
97
THR
97
A
ALA
98
n
98
ALA
98
A
ILE
99
n
99
ILE
99
A
LEU
100
n
100
LEU
100
A
ASP
101
n
101
ASP
101
A
SER
102
n
102
SER
102
A
MET
103
n
103
MET
103
A
ASP
104
n
104
ASP
104
A
ILE
105
n
105
ILE
105
A
PHE
106
n
106
PHE
106
A
LEU
107
n
107
LEU
107
A
GLU
108
n
108
GLU
108
A
ILE
109
n
109
ILE
109
A
VAL
110
n
110
VAL
110
A
THR
111
n
111
THR
111
A
ASN
112
n
112
ASN
112
A
PRO
113
n
113
PRO
113
A
ASP
114
n
114
ASP
114
A
GLY
115
n
115
GLY
115
A
PHE
116
n
116
PHE
116
A
ALA
117
n
117
ALA
117
A
PHE
118
n
118
PHE
118
A
THR
119
n
119
THR
119
A
HIS
120
n
120
HIS
120
A
SER
121
n
121
SER
121
A
GLN
122
n
122
GLN
122
A
ASN
123
n
123
ASN
123
A
ARG
124
n
124
ARG
124
A
LEU
125
n
125
LEU
125
A
TRP
126
n
126
TRP
126
A
ARG
127
n
127
ARG
127
A
LYS
128
n
128
LYS
128
A
THR
129
n
129
THR
129
A
ARG
130
n
130
ARG
130
A
SER
131
n
131
SER
131
A
VAL
132
n
132
VAL
132
A
THR
133
n
133
THR
133
A
SER
134
n
134
SER
134
A
SER
135
n
135
SER
135
A
SER
136
n
136
SER
136
A
LEU
137
n
137
LEU
137
A
CYS
138
n
138
CYS
138
A
VAL
139
n
139
VAL
139
A
GLY
140
n
140
GLY
140
A
VAL
141
n
141
VAL
141
A
ASP
142
n
142
ASP
142
A
ALA
143
n
143
ALA
143
A
ASN
144
n
144
ASN
144
A
ARG
145
n
145
ARG
145
A
ASN
146
n
146
ASN
146
A
TRP
147
n
147
TRP
147
A
ASP
148
n
148
ASP
148
A
ALA
149
n
149
ALA
149
A
GLY
150
n
150
GLY
150
A
PHE
151
n
151
PHE
151
A
GLY
152
n
152
GLY
152
A
LYS
153
n
153
LYS
153
A
ALA
154
n
154
ALA
154
A
GLY
155
n
155
GLY
155
A
ALA
156
n
156
ALA
156
A
SER
157
n
157
SER
157
A
SER
158
n
158
SER
158
A
SER
159
n
159
SER
159
A
PRO
160
n
160
PRO
160
A
CYS
161
n
161
CYS
161
A
SER
162
n
162
SER
162
A
GLU
163
n
163
GLU
163
A
THR
164
n
164
THR
164
A
TYR
165
n
165
TYR
165
A
HIS
166
n
166
HIS
166
A
GLY
167
n
167
GLY
167
A
LYS
168
n
168
LYS
168
A
TYR
169
n
169
TYR
169
A
ALA
170
n
170
ALA
170
A
ASN
171
n
171
ASN
171
A
SER
172
n
172
SER
172
A
GLU
173
n
173
GLU
173
A
VAL
174
n
174
VAL
174
A
GLU
175
n
175
GLU
175
A
VAL
176
n
176
VAL
176
A
LYS
177
n
177
LYS
177
A
SER
178
n
178
SER
178
A
ILE
179
n
179
ILE
179
A
VAL
180
n
180
VAL
180
A
ASP
181
n
181
ASP
181
A
PHE
182
n
182
PHE
182
A
VAL
183
n
183
VAL
183
A
LYS
184
n
184
LYS
184
A
ASP
185
n
185
ASP
185
A
HIS
186
n
186
HIS
186
A
GLY
187
n
187
GLY
187
A
ASN
188
n
188
ASN
188
A
PHE
189
n
189
PHE
189
A
LYS
190
n
190
LYS
190
A
ALA
191
n
191
ALA
191
A
PHE
192
n
192
PHE
192
A
LEU
193
n
193
LEU
193
A
SER
194
n
194
SER
194
A
ILE
195
n
195
ILE
195
A
HIS
196
n
196
HIS
196
A
SER
197
n
197
SER
197
A
TYR
198
n
198
TYR
198
A
SER
199
n
199
SER
199
A
GLN
200
n
200
GLN
200
A
LEU
201
n
201
LEU
201
A
LEU
202
n
202
LEU
202
A
LEU
203
n
203
LEU
203
A
TYR
204
n
204
TYR
204
A
PRO
205
n
205
PRO
205
A
TYR
206
n
206
TYR
206
A
GLY
207
n
207
GLY
207
A
TYR
208
n
208
TYR
208
A
THR
209
n
209
THR
209
A
THR
210
n
210
THR
210
A
GLN
211
n
211
GLN
211
A
SER
212
n
212
SER
212
A
ILE
213
n
213
ILE
213
A
PRO
214
n
214
PRO
214
A
ASP
215
n
215
ASP
215
A
LYS
216
n
216
LYS
216
A
THR
217
n
217
THR
217
A
GLU
218
n
218
GLU
218
A
LEU
219
n
219
LEU
219
A
ASN
220
n
220
ASN
220
A
GLN
221
n
221
GLN
221
A
VAL
222
n
222
VAL
222
A
ALA
223
n
223
ALA
223
A
LYS
224
n
224
LYS
224
A
SER
225
n
225
SER
225
A
ALA
226
n
226
ALA
226
A
VAL
227
n
227
VAL
227
A
ALA
228
n
228
ALA
228
A
ALA
229
n
229
ALA
229
A
LEU
230
n
230
LEU
230
A
LYS
231
n
231
LYS
231
A
SER
232
n
232
SER
232
A
LEU
233
n
233
LEU
233
A
TYR
234
n
234
TYR
234
A
GLY
235
n
235
GLY
235
A
THR
236
n
236
THR
236
A
SER
237
n
237
SER
237
A
TYR
238
n
238
TYR
238
A
LYS
239
n
239
LYS
239
A
TYR
240
n
240
TYR
240
A
GLY
241
n
241
GLY
241
A
SER
242
n
242
SER
242
A
ILE
243
n
243
ILE
243
A
ILE
244
n
244
ILE
244
A
THR
245
n
245
THR
245
A
THR
246
n
246
THR
246
A
ILE
247
n
247
ILE
247
A
TYR
248
n
248
TYR
248
A
GLN
249
n
249
GLN
249
A
ALA
250
n
250
ALA
250
A
SER
251
n
251
SER
251
A
GLY
252
n
252
GLY
252
A
GLY
253
n
253
GLY
253
A
SER
254
n
254
SER
254
A
ILE
255
n
255
ILE
255
A
ASP
256
n
256
ASP
256
A
TRP
257
n
257
TRP
257
A
SER
258
n
258
SER
258
A
TYR
259
n
259
TYR
259
A
ASN
260
n
260
ASN
260
A
GLN
261
n
261
GLN
261
A
GLY
262
n
262
GLY
262
A
ILE
263
n
263
ILE
263
A
LYS
264
n
264
LYS
264
A
TYR
265
n
265
TYR
265
A
SER
266
n
266
SER
266
A
PHE
267
n
267
PHE
267
A
THR
268
n
268
THR
268
A
PHE
269
n
269
PHE
269
A
GLU
270
n
270
GLU
270
A
LEU
271
n
271
LEU
271
A
ARG
272
n
272
ARG
272
A
ASP
273
n
273
ASP
273
A
THR
274
n
274
THR
274
A
GLY
275
n
275
GLY
275
A
ARG
276
n
276
ARG
276
A
TYR
277
n
277
TYR
277
A
GLY
278
n
278
GLY
278
A
PHE
279
n
279
PHE
279
A
LEU
280
n
280
LEU
280
A
LEU
281
n
281
LEU
281
A
PRO
282
n
282
PRO
282
A
ALA
283
n
283
ALA
283
A
SER
284
n
284
SER
284
A
GLN
285
n
285
GLN
285
A
ILE
286
n
286
ILE
286
A
ILE
287
n
287
ILE
287
A
PRO
288
n
288
PRO
288
A
THR
289
n
289
THR
289
A
ALA
290
n
290
ALA
290
A
GLN
291
n
291
GLN
291
A
GLU
292
n
292
GLU
292
A
THR
293
n
293
THR
293
A
TRP
294
n
294
TRP
294
A
LEU
295
n
295
LEU
295
A
GLY
296
n
296
GLY
296
A
VAL
297
n
297
VAL
297
A
LEU
298
n
298
LEU
298
A
THR
299
n
299
THR
299
A
ILE
300
n
300
ILE
300
A
MET
301
n
301
MET
301
A
GLU
302
n
302
GLU
302
A
HIS
303
n
303
HIS
303
A
THR
304
n
304
THR
304
A
VAL
305
n
305
VAL
305
A
ASN
306
n
306
ASN
306
A
ASN
307
n
307
ASN
307
A
author_defined_assembly
1
monomeric
A
HIS
69
A
ND1
HIS
69
1_555
A
ZN
308
B
ZN
ZN
1_555
A
GLU
72
A
OE1
GLU
72
1_555
119.5
A
HIS
69
A
ND1
HIS
69
1_555
A
ZN
308
B
ZN
ZN
1_555
A
GLU
72
A
OE2
GLU
72
1_555
87.7
A
GLU
72
A
OE1
GLU
72
1_555
A
ZN
308
B
ZN
ZN
1_555
A
GLU
72
A
OE2
GLU
72
1_555
55.5
A
HIS
69
A
ND1
HIS
69
1_555
A
ZN
308
B
ZN
ZN
1_555
A
HIS
196
A
ND1
HIS
196
1_555
99.7
A
GLU
72
A
OE1
GLU
72
1_555
A
ZN
308
B
ZN
ZN
1_555
A
HIS
196
A
ND1
HIS
196
1_555
101.4
A
GLU
72
A
OE2
GLU
72
1_555
A
ZN
308
B
ZN
ZN
1_555
A
HIS
196
A
ND1
HIS
196
1_555
155.7
A
HIS
69
A
ND1
HIS
69
1_555
A
ZN
308
B
ZN
ZN
1_555
A
OH
541
D
O
OH
1_555
124.6
A
GLU
72
A
OE1
GLU
72
1_555
A
ZN
308
B
ZN
ZN
1_555
A
OH
541
D
O
OH
1_555
107.9
A
GLU
72
A
OE2
GLU
72
1_555
A
ZN
308
B
ZN
ZN
1_555
A
OH
541
D
O
OH
1_555
97.3
A
HIS
196
A
ND1
HIS
196
1_555
A
ZN
308
B
ZN
ZN
1_555
A
OH
541
D
O
OH
1_555
97.3
A
GLU
270
A
OE2
GLU
270
1_555
A
ZN
309
C
ZN
ZN
1_555
A
OH
541
D
O
OH
1_555
118.8
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
LYS
239
A
O
LYS
239
A
N
LEU
202
A
N
LEU
202
A
O
LEU
201
A
O
LEU
201
A
N
GLU
270
A
N
GLU
270
A
O
TYR
265
A
O
TYR
265
A
N
PHE
192
A
N
PHE
192
A
O
LYS
190
A
O
LYS
190
A
N
ALA
61
A
N
ALA
61
A
O
PRO
60
A
O
PRO
60
A
N
ASP
104
A
N
ASP
104
A
O
ILE
105
A
O
ILE
105
A
N
PHE
52
A
N
PHE
52
A
O
ILE
47
A
O
ILE
47
A
N
GLY
39
A
N
GLY
39
1
A
ALA
1
A
ALA
1
1
Y
1
A
ARG
2
A
ARG
2
1
Y
1
A
LEU
32
-135.67
-34.61
1
A
SER
199
150.49
-22.46
1
A
GLN
200
65.01
67.06
1
A
ILE
247
-119.43
-73.13
1
A
ASP
273
-114.58
-139.37
1
A
LEU
280
-91.79
43.14
1
A
ASN
306
80.94
83.51
PARHCSDX.PRO
TOPHCSDX.PRO
PARAM11.WAT
TOPH11.WAT
PAR-CIS.PEP
TOPH19.PEP
15.8
0.226
0.167
0.167
2.00
8.00
977
20060
5
93.4
RANDOM
0.
1
THROUGHOUT
0.0
MOLECULAR REPLACEMENT
5CPA WITHOUT WATERS AND ZN
0.25
0.20
4.08
0.18
0.18
2.00
8.00
277
2701
3
0
2421
0.010
2.001
22.4
1.238
2.221
1.50
2.277
2.00
2.876
2.00
2.800
2.50
0.252
0.224
2.09
83
1878
8
4.2
73.9
19.0
2.00
40.0
1CPX
20453
0.038
0.038
1
30.7
4.3
94.1
0.157
2.00
2.03
7.1
0.157
3.9
67.7
data reduction
DENZO
data scaling
SCALEPACK
phasing
AMoRE
refinement
X-PLOR
3.851
BETA FORM OF CARBOXYPEPTIDASE A (RESIDUES 3-307) FROM BOVINE PANCREAS IN AN ORTHORHOMBIC CRYSTAL FORM WITH TWO ZINC IONS IN THE ACTIVE SITE.
1
N
N
2
N
N
2
N
N
3
N
N
4
N
N
A
LEU
15
A
LEU
15
HELX_P
A
GLU
28
A
GLU
28
1
1
14
A
TRP
73
A
TRP
73
HELX_P
A
ASP
89
A
ASP
89
1
2
17
A
PRO
94
A
PRO
94
HELX_P
A
LEU
100
A
LEU
100
1
3
7
A
PRO
113
A
PRO
113
HELX_P
A
SER
121
A
SER
121
1
4
9
A
ALA
143
A
ALA
143
HELX_P
A
ARG
145
A
ARG
145
5
5
3
A
VAL
174
A
VAL
174
HELX_P
A
HIS
186
A
HIS
186
1
6
13
A
LYS
216
A
LYS
216
HELX_P
A
TYR
234
A
TYR
234
1
7
19
A
ILE
243
A
ILE
243
HELX_P
A
THR
246
A
THR
246
1
8
4
A
SER
254
A
SER
254
HELX_P
A
GLN
261
A
GLN
261
1
9
8
A
ALA
283
A
ALA
283
HELX_P
A
THR
304
A
THR
304
5
10
22
disulf
2.014
A
CYS
138
A
SG
CYS
138
1_555
A
CYS
161
A
SG
CYS
161
1_555
metalc
1.978
A
HIS
69
A
ND1
HIS
69
1_555
A
ZN
308
B
ZN
ZN
1_555
metalc
2.241
A
GLU
72
A
OE1
GLU
72
1_555
A
ZN
308
B
ZN
ZN
1_555
metalc
2.448
A
GLU
72
A
OE2
GLU
72
1_555
A
ZN
308
B
ZN
ZN
1_555
metalc
2.081
A
HIS
196
A
ND1
HIS
196
1_555
A
ZN
308
B
ZN
ZN
1_555
metalc
1.844
A
GLU
270
A
OE2
GLU
270
1_555
A
ZN
309
C
ZN
ZN
1_555
metalc
1.752
A
ZN
308
B
ZN
ZN
1_555
A
OH
541
D
O
OH
1_555
metalc
1.846
A
ZN
309
C
ZN
ZN
1_555
A
OH
541
D
O
OH
1_555
HYDROLASE
METALLOPROTEASE, HYDROLASE, CARBOXYPEPTIDASE, ZINC INHIBITION, INDUCED FIT
A
SER
197
A
SER
197
1
A
TYR
198
A
TYR
198
0.60
A
PRO
205
A
PRO
205
1
A
TYR
206
A
TYR
206
-0.39
A
ARG
272
A
ARG
272
1
A
ASP
273
A
ASP
273
-0.06
CBPA1_BOVIN
UNP
1
P00730
111
417
1CPX
1
307
P00730
A
1
1
307
1
GLU
conflict
ALA
228
1CPX
A
P00730
UNP
338
228
1
LEU
conflict
VAL
305
1CPX
A
P00730
UNP
415
305
8
parallel
anti-parallel
parallel
parallel
parallel
anti-parallel
anti-parallel
A
LYS
239
A
LYS
239
A
SER
242
A
SER
242
A
LEU
201
A
LEU
201
A
TYR
204
A
TYR
204
A
TYR
265
A
TYR
265
A
GLU
270
A
GLU
270
A
PHE
189
A
PHE
189
A
HIS
196
A
HIS
196
A
PRO
60
A
PRO
60
A
LEU
66
A
LEU
66
A
MET
103
A
MET
103
A
GLU
108
A
GLU
108
A
PRO
46
A
PRO
46
A
PHE
52
A
PHE
52
A
VAL
33
A
VAL
33
A
ARG
40
A
ARG
40
CATALYTIC ZN 308 WITH LIGANDS: HIS 69, GLU 72, HIS 196 AND OH 541
Author
4
INHIBITORY ZN 309 WITH LIGANDS: GLU 270 AND OH 541
Author
3
BINDING SITE FOR PARTLY COMPETITIVE ANIONS
Author
4
BINDING SITE FOR RESIDUE ZN A 308
A
ZN
308
Software
5
BINDING SITE FOR RESIDUE ZN A 309
A
ZN
309
Software
3
BINDING SITE FOR RESIDUE OH A 541
A
OH
541
Software
7
A
OH
541
D
OH
4
1_555
A
HIS
69
A
HIS
69
4
1_555
A
GLU
72
A
GLU
72
4
1_555
A
HIS
196
A
HIS
196
4
1_555
A
ZN
309
C
ZN
3
1_555
A
GLU
270
A
GLU
270
3
1_555
A
OH
541
D
OH
3
1_555
A
HOH
516
E
HOH
4
1_555
A
ASN
144
A
ASN
144
4
1_555
A
ARG
145
A
ARG
145
4
1_555
A
TYR
248
A
TYR
248
4
1_555
A
HIS
69
A
HIS
69
5
1_555
A
GLU
72
A
GLU
72
5
1_555
A
HIS
196
A
HIS
196
5
1_555
A
ZN
309
C
ZN
5
1_555
A
OH
541
D
OH
5
1_555
A
GLU
270
A
GLU
270
3
1_555
A
ZN
308
B
ZN
3
1_555
A
OH
541
D
OH
3
1_555
A
HIS
69
A
HIS
69
7
1_555
A
GLU
72
A
GLU
72
7
1_555
A
HIS
196
A
HIS
196
7
1_555
A
SER
197
A
SER
197
7
1_555
A
GLU
270
A
GLU
270
7
1_555
A
ZN
308
B
ZN
7
1_555
A
ZN
309
C
ZN
7
1_555
19
P 21 21 21