0.018405
0.000000
0.000000
0.000000
0.017669
0.000000
0.000000
0.000000
0.008429
0.00000
0.00000
0.00000
Radisky, E.S.
Koshland JR., D.E.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
4
90.00
90.00
90.00
54.332
56.597
118.635
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
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
S
C
N
77
N
C
N
78
N
O
N
79
N
C
N
80
N
C
N
81
N
C
N
82
N
O
N
83
N
N
N
84
N
O
N
85
N
H
N
86
N
H
N
87
N
H
N
88
N
H
N
89
N
H
N
90
N
H
N
91
N
H
N
92
N
H
N
93
N
H
N
94
N
H
N
95
N
N
N
96
S
C
N
97
N
C
N
98
N
O
N
99
N
C
N
100
N
C
N
101
N
C
N
102
N
O
N
103
N
O
N
104
N
O
N
105
N
H
N
106
N
H
N
107
N
H
N
108
N
H
N
109
N
H
N
110
N
H
N
111
N
H
N
112
N
H
N
113
N
H
N
114
N
N
N
115
N
C
N
116
N
C
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
N
N
125
S
C
N
126
N
C
N
127
N
O
N
128
N
C
Y
129
N
C
Y
130
N
N
Y
131
N
C
Y
132
N
C
Y
133
N
N
N
134
N
O
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
O
N
146
N
H
N
147
N
H
N
148
N
N
N
149
S
C
N
150
N
C
N
151
N
O
N
152
S
C
N
153
N
C
N
154
N
C
N
155
N
C
N
156
N
O
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
H
N
164
N
H
N
165
N
H
N
166
N
H
N
167
N
H
N
168
N
H
N
169
N
H
N
170
N
N
N
171
S
C
N
172
N
C
N
173
N
O
N
174
N
C
N
175
N
C
N
176
N
C
N
177
N
C
N
178
N
O
N
179
N
H
N
180
N
H
N
181
N
H
N
182
N
H
N
183
N
H
N
184
N
H
N
185
N
H
N
186
N
H
N
187
N
H
N
188
N
H
N
189
N
H
N
190
N
H
N
191
N
H
N
192
N
N
N
193
S
C
N
194
N
C
N
195
N
O
N
196
N
C
N
197
N
C
N
198
N
C
N
199
N
C
N
200
N
N
N
201
N
O
N
202
N
H
N
203
N
H
N
204
N
H
N
205
N
H
N
206
N
H
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
H
N
217
N
N
N
218
S
C
N
219
N
C
N
220
N
O
N
221
N
C
N
222
N
C
N
223
N
S
N
224
N
C
N
225
N
O
N
226
N
H
N
227
N
H
N
228
N
H
N
229
N
H
N
230
N
H
N
231
N
H
N
232
N
H
N
233
N
H
N
234
N
H
N
235
N
H
N
236
N
H
N
237
N
N
N
238
S
C
N
239
N
C
N
240
N
O
N
241
N
C
Y
242
N
C
Y
243
N
C
Y
244
N
C
Y
245
N
C
Y
246
N
C
Y
247
N
C
N
248
N
O
N
249
N
H
N
250
N
H
N
251
N
H
N
252
N
H
N
253
N
H
N
254
N
H
N
255
N
H
N
256
N
H
N
257
N
H
N
258
N
H
N
259
N
H
N
260
N
N
N
261
S
C
N
262
N
C
N
263
N
O
N
264
N
C
N
265
N
C
N
266
N
C
N
267
N
O
N
268
N
H
N
269
N
H
N
270
N
H
N
271
N
H
N
272
N
H
N
273
N
H
N
274
N
H
N
275
N
H
N
276
N
H
N
277
N
N
N
278
S
C
N
279
N
C
N
280
N
O
N
281
N
C
N
282
N
O
N
283
N
O
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
S
N
292
N
O
N
293
N
O
N
294
N
O
N
295
N
O
N
296
N
N
N
297
S
C
N
298
N
C
N
299
N
O
N
300
R
C
N
301
N
O
N
302
N
C
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
N
N
314
S
C
N
315
N
C
N
316
N
O
N
317
N
C
Y
318
N
C
Y
319
N
C
Y
320
N
C
Y
321
N
N
Y
322
N
C
Y
323
N
C
Y
324
N
C
Y
325
N
C
Y
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
H
N
340
N
N
N
341
S
C
N
342
N
C
N
343
N
O
N
344
N
C
Y
345
N
C
Y
346
N
C
Y
347
N
C
Y
348
N
C
Y
349
N
C
Y
350
N
C
N
351
N
O
N
352
N
O
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
H
N
363
N
H
N
364
N
N
N
365
S
C
N
366
N
C
N
367
N
O
N
368
N
C
N
369
N
C
N
370
N
C
N
371
N
O
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
H
N
380
N
H
N
381
N
H
N
382
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
doub
N
85
N
sing
N
86
N
sing
N
87
N
sing
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
doub
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
doub
N
104
N
sing
N
105
N
sing
N
106
N
sing
N
107
N
sing
N
108
N
sing
N
109
N
sing
N
110
N
sing
N
111
N
sing
N
112
N
sing
N
113
N
doub
N
114
N
sing
N
115
N
sing
N
116
N
sing
N
117
N
sing
N
118
N
sing
N
119
N
sing
N
120
N
sing
N
121
N
sing
N
122
N
doub
N
123
N
sing
N
124
N
sing
N
125
N
sing
N
126
N
sing
Y
127
N
sing
Y
128
N
doub
Y
129
N
doub
N
130
N
sing
Y
131
N
sing
N
132
N
sing
Y
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
sing
N
140
N
sing
N
141
N
sing
N
142
N
sing
N
143
N
sing
N
144
N
sing
N
145
N
doub
N
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
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
sing
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
sing
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
sing
N
207
N
sing
N
208
N
sing
N
209
N
sing
N
210
N
sing
N
211
N
doub
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
sing
N
225
N
sing
N
226
N
sing
N
227
N
sing
N
228
N
sing
N
229
N
sing
N
230
N
doub
N
231
N
sing
N
232
N
sing
N
233
N
sing
N
234
N
sing
Y
235
N
doub
Y
236
N
sing
Y
237
N
sing
N
238
N
sing
Y
239
N
doub
N
240
N
sing
Y
241
N
doub
N
242
N
sing
Y
243
N
sing
N
244
N
sing
N
245
N
sing
N
246
N
sing
N
247
N
sing
N
248
N
sing
N
249
N
sing
N
250
N
sing
N
251
N
sing
N
252
N
sing
N
253
N
doub
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
sing
N
270
N
doub
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
doub
N
278
N
doub
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
doub
N
288
N
sing
N
289
N
sing
N
290
N
sing
N
291
N
sing
N
292
N
sing
N
293
N
sing
N
294
N
sing
N
295
N
sing
N
296
N
sing
N
297
N
sing
N
298
N
sing
N
299
N
sing
N
300
N
sing
N
301
N
sing
N
302
N
sing
N
303
N
doub
N
304
N
sing
N
305
N
sing
N
306
N
sing
N
307
N
sing
Y
308
N
doub
Y
309
N
sing
Y
310
N
sing
N
311
N
sing
Y
312
N
doub
Y
313
N
sing
Y
314
N
sing
N
315
N
sing
Y
316
N
sing
Y
317
N
doub
N
318
N
sing
Y
319
N
doub
N
320
N
sing
Y
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
doub
N
332
N
sing
N
333
N
sing
N
334
N
sing
N
335
N
sing
Y
336
N
doub
Y
337
N
sing
Y
338
N
sing
N
339
N
sing
Y
340
N
doub
N
341
N
sing
Y
342
N
doub
N
343
N
sing
Y
344
N
sing
N
345
N
sing
N
346
N
sing
N
347
N
sing
N
348
N
sing
N
349
N
sing
N
350
N
sing
N
351
N
sing
N
352
N
sing
N
353
N
sing
N
354
N
sing
N
355
N
doub
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
sing
N
366
N
sing
US
Proc.Natl.Acad.Sci.USA
PNASA6
0040
0027-8424
99
10316
10321
10.1073/pnas.112332899
12142461
A clogged gutter mechanism for protease inhibitors.
2002
10.2210/pdb1lw6/pdb
pdb_00001lw6
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
2001-07-21
ADSC QUANTUM 4
SINGLE WAVELENGTH
M
x-ray
1
1.0000
1.0
5.0.1
ALS
1.0000
SYNCHROTRON
ALS BEAMLINE 5.0.1
28381.396
SUBTILISIN BPN'
3.4.21.62
1
man
polymer
7255.586
SUBTILISIN-CHYMOTRYPSIN INHIBITOR-2A
E45A
1
man
polymer
40.078
CALCIUM ION
1
syn
non-polymer
96.063
SULFATE ION
4
syn
non-polymer
18.015
water
505
nat
water
Subtilisin Novo, Alkaline protease
CI-2A
no
no
AQSVPYGVSQIKAPALHSQGYTGSNVKVAVIDSGIDSSHPDLKVAGGASMVPSETNPFQDNNSHGTHVAGTVAALNNSIG
VLGVAPSASLYAVKVLGADGSGQYSWIINGIEWAIANNMDVINMSLGGPSGSAALKAAVDKAVASGVVVVAAAGNEGTSG
SSSTVGYPGKYPSVIAVGAVDSSNQRASFSSVGPELDVMAPGVSIQSTLPGNKYGAYNGTSMASPHVAGAAALILSKHPN
WTNTQVRSSLENTTTKLGDSFYYGKGLINVQAAAQHHHHHH
AQSVPYGVSQIKAPALHSQGYTGSNVKVAVIDSGIDSSHPDLKVAGGASMVPSETNPFQDNNSHGTHVAGTVAALNNSIG
VLGVAPSASLYAVKVLGADGSGQYSWIINGIEWAIANNMDVINMSLGGPSGSAALKAAVDKAVASGVVVVAAAGNEGTSG
SSSTVGYPGKYPSVIAVGAVDSSNQRASFSSVGPELDVMAPGVSIQSTLPGNKYGAYNGTSMASPHVAGAAALILSKHPN
WTNTQVRSSLENTTTKLGDSFYYGKGLINVQAAAQHHHHHH
E
polypeptide(L)
no
no
MKTEWPELVGKSVEEAKKVILQDKPAAQIIVLPVGTIVTMEYRIDRVRLFVDKLDNIAQVPRVG
MKTEWPELVGKSVEEAKKVILQDKPAAQIIVLPVGTIVTMEYRIDRVRLFVDKLDNIAQVPRVG
I
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
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
Bacillus
Bacillus
sample
1390
Bacillus amyloliquefaciens
1423
Bacillus subtilis
BG2036
plasmid
pser25
Hordeum
HIPROLY
Escherichia
Escherichia coli
sample
4513
Hordeum vulgare
469008
Escherichia coli BL21(DE3)
BL21(DE3)
plasmid
pCI2ER1
1
2.56
51.91
VAPOR DIFFUSION, HANGING DROP
6.5
PEG 8000, ammonium sulfate, sodium cacodylate, pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 277K
277
software
software
database_2
pdbx_struct_conn_angle
struct_conn
struct_ref_seq_dif
struct_site
chem_comp_atom
chem_comp_bond
pdbx_initial_refinement_model
repository
Initial release
Version format compliance
Version format compliance
Refinement description
Data collection
Refinement description
Database references
Derived calculations
Data collection
Refinement description
1
0
2002-08-21
1
1
2008-04-28
1
2
2011-07-13
1
3
2017-10-11
1
4
2019-07-24
1
5
2021-10-27
1
6
2024-02-14
_software.name
_software.name
_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_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_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
RCSB
Y
RCSB
2002-05-30
REL
REL
CA
CALCIUM ION
SO4
SULFATE ION
HOH
water
2SNI
PDB ENTRY 2SNI
PDB
experimental model
CA
1
3
CA
CA
300
E
SUL
2
4
SO4
SO4
602
E
SUL
3
4
SO4
SO4
603
E
SUL
4
4
SO4
SO4
604
E
SUL
5
4
SO4
SO4
605
E
WAT
4
5
HOH
HOH
606
E
WAT
5
5
HOH
HOH
607
E
WAT
6
5
HOH
HOH
608
E
WAT
7
5
HOH
HOH
609
E
WAT
8
5
HOH
HOH
610
E
WAT
9
5
HOH
HOH
611
E
WAT
10
5
HOH
HOH
612
E
WAT
11
5
HOH
HOH
613
E
WAT
12
5
HOH
HOH
614
E
WAT
13
5
HOH
HOH
615
E
WAT
14
5
HOH
HOH
616
E
WAT
15
5
HOH
HOH
617
E
WAT
16
5
HOH
HOH
618
E
WAT
17
5
HOH
HOH
619
E
WAT
18
5
HOH
HOH
620
E
WAT
19
5
HOH
HOH
621
E
WAT
20
5
HOH
HOH
622
E
WAT
22
5
HOH
HOH
623
E
WAT
25
5
HOH
HOH
624
E
WAT
26
5
HOH
HOH
625
E
WAT
27
5
HOH
HOH
626
E
WAT
28
5
HOH
HOH
627
E
WAT
29
5
HOH
HOH
628
E
WAT
30
5
HOH
HOH
629
E
WAT
32
5
HOH
HOH
630
E
WAT
33
5
HOH
HOH
631
E
WAT
34
5
HOH
HOH
632
E
WAT
35
5
HOH
HOH
633
E
WAT
36
5
HOH
HOH
634
E
WAT
37
5
HOH
HOH
635
E
WAT
38
5
HOH
HOH
636
E
WAT
39
5
HOH
HOH
637
E
WAT
40
5
HOH
HOH
638
E
WAT
41
5
HOH
HOH
639
E
WAT
42
5
HOH
HOH
640
E
WAT
43
5
HOH
HOH
641
E
WAT
45
5
HOH
HOH
642
E
WAT
46
5
HOH
HOH
643
E
WAT
47
5
HOH
HOH
644
E
WAT
48
5
HOH
HOH
645
E
WAT
49
5
HOH
HOH
646
E
WAT
50
5
HOH
HOH
647
E
WAT
53
5
HOH
HOH
648
E
WAT
54
5
HOH
HOH
649
E
WAT
55
5
HOH
HOH
650
E
WAT
56
5
HOH
HOH
651
E
WAT
57
5
HOH
HOH
652
E
WAT
59
5
HOH
HOH
653
E
WAT
60
5
HOH
HOH
654
E
WAT
61
5
HOH
HOH
655
E
WAT
62
5
HOH
HOH
656
E
WAT
63
5
HOH
HOH
657
E
WAT
65
5
HOH
HOH
658
E
WAT
66
5
HOH
HOH
659
E
WAT
67
5
HOH
HOH
660
E
WAT
68
5
HOH
HOH
661
E
WAT
69
5
HOH
HOH
662
E
WAT
72
5
HOH
HOH
663
E
WAT
73
5
HOH
HOH
664
E
WAT
74
5
HOH
HOH
665
E
WAT
75
5
HOH
HOH
666
E
WAT
76
5
HOH
HOH
667
E
WAT
77
5
HOH
HOH
668
E
WAT
78
5
HOH
HOH
669
E
WAT
79
5
HOH
HOH
670
E
WAT
80
5
HOH
HOH
671
E
WAT
81
5
HOH
HOH
672
E
WAT
82
5
HOH
HOH
673
E
WAT
83
5
HOH
HOH
674
E
WAT
84
5
HOH
HOH
675
E
WAT
85
5
HOH
HOH
676
E
WAT
86
5
HOH
HOH
677
E
WAT
87
5
HOH
HOH
678
E
WAT
88
5
HOH
HOH
679
E
WAT
90
5
HOH
HOH
680
E
WAT
91
5
HOH
HOH
681
E
WAT
92
5
HOH
HOH
682
E
WAT
93
5
HOH
HOH
683
E
WAT
94
5
HOH
HOH
684
E
WAT
97
5
HOH
HOH
685
E
WAT
98
5
HOH
HOH
686
E
WAT
100
5
HOH
HOH
687
E
WAT
101
5
HOH
HOH
688
E
WAT
102
5
HOH
HOH
689
E
WAT
103
5
HOH
HOH
690
E
WAT
104
5
HOH
HOH
691
E
WAT
105
5
HOH
HOH
692
E
WAT
106
5
HOH
HOH
693
E
WAT
108
5
HOH
HOH
694
E
WAT
109
5
HOH
HOH
695
E
WAT
110
5
HOH
HOH
696
E
WAT
111
5
HOH
HOH
697
E
WAT
112
5
HOH
HOH
698
E
WAT
113
5
HOH
HOH
699
E
WAT
116
5
HOH
HOH
700
E
WAT
117
5
HOH
HOH
701
E
WAT
118
5
HOH
HOH
702
E
WAT
119
5
HOH
HOH
703
E
WAT
120
5
HOH
HOH
704
E
WAT
122
5
HOH
HOH
705
E
WAT
123
5
HOH
HOH
706
E
WAT
124
5
HOH
HOH
707
E
WAT
125
5
HOH
HOH
708
E
WAT
126
5
HOH
HOH
709
E
WAT
127
5
HOH
HOH
710
E
WAT
128
5
HOH
HOH
711
E
WAT
130
5
HOH
HOH
712
E
WAT
132
5
HOH
HOH
713
E
WAT
133
5
HOH
HOH
714
E
WAT
134
5
HOH
HOH
715
E
WAT
135
5
HOH
HOH
716
E
WAT
136
5
HOH
HOH
717
E
WAT
138
5
HOH
HOH
718
E
WAT
140
5
HOH
HOH
719
E
WAT
141
5
HOH
HOH
720
E
WAT
142
5
HOH
HOH
721
E
WAT
143
5
HOH
HOH
722
E
WAT
144
5
HOH
HOH
723
E
WAT
145
5
HOH
HOH
724
E
WAT
146
5
HOH
HOH
725
E
WAT
147
5
HOH
HOH
726
E
WAT
149
5
HOH
HOH
727
E
WAT
150
5
HOH
HOH
728
E
WAT
151
5
HOH
HOH
729
E
WAT
152
5
HOH
HOH
730
E
WAT
153
5
HOH
HOH
731
E
WAT
154
5
HOH
HOH
732
E
WAT
155
5
HOH
HOH
733
E
WAT
156
5
HOH
HOH
734
E
WAT
157
5
HOH
HOH
735
E
WAT
159
5
HOH
HOH
736
E
WAT
161
5
HOH
HOH
737
E
WAT
162
5
HOH
HOH
738
E
WAT
163
5
HOH
HOH
739
E
WAT
164
5
HOH
HOH
740
E
WAT
165
5
HOH
HOH
741
E
WAT
166
5
HOH
HOH
742
E
WAT
167
5
HOH
HOH
743
E
WAT
168
5
HOH
HOH
744
E
WAT
169
5
HOH
HOH
745
E
WAT
170
5
HOH
HOH
746
E
WAT
172
5
HOH
HOH
747
E
WAT
173
5
HOH
HOH
748
E
WAT
175
5
HOH
HOH
749
E
WAT
177
5
HOH
HOH
750
E
WAT
179
5
HOH
HOH
751
E
WAT
180
5
HOH
HOH
752
E
WAT
181
5
HOH
HOH
753
E
WAT
182
5
HOH
HOH
754
E
WAT
183
5
HOH
HOH
755
E
WAT
184
5
HOH
HOH
756
E
WAT
186
5
HOH
HOH
757
E
WAT
187
5
HOH
HOH
758
E
WAT
188
5
HOH
HOH
759
E
WAT
189
5
HOH
HOH
760
E
WAT
190
5
HOH
HOH
761
E
WAT
192
5
HOH
HOH
762
E
WAT
193
5
HOH
HOH
763
E
WAT
194
5
HOH
HOH
764
E
WAT
196
5
HOH
HOH
765
E
WAT
198
5
HOH
HOH
766
E
WAT
201
5
HOH
HOH
767
E
WAT
202
5
HOH
HOH
768
E
WAT
204
5
HOH
HOH
769
E
WAT
205
5
HOH
HOH
770
E
WAT
206
5
HOH
HOH
771
E
WAT
207
5
HOH
HOH
772
E
WAT
208
5
HOH
HOH
773
E
WAT
209
5
HOH
HOH
774
E
WAT
210
5
HOH
HOH
775
E
WAT
211
5
HOH
HOH
776
E
WAT
212
5
HOH
HOH
777
E
WAT
213
5
HOH
HOH
778
E
WAT
215
5
HOH
HOH
779
E
WAT
216
5
HOH
HOH
780
E
WAT
217
5
HOH
HOH
781
E
WAT
218
5
HOH
HOH
782
E
WAT
219
5
HOH
HOH
783
E
WAT
220
5
HOH
HOH
784
E
WAT
221
5
HOH
HOH
785
E
WAT
222
5
HOH
HOH
786
E
WAT
223
5
HOH
HOH
787
E
WAT
224
5
HOH
HOH
788
E
WAT
226
5
HOH
HOH
789
E
WAT
227
5
HOH
HOH
790
E
WAT
228
5
HOH
HOH
791
E
WAT
229
5
HOH
HOH
792
E
WAT
230
5
HOH
HOH
793
E
WAT
231
5
HOH
HOH
794
E
WAT
232
5
HOH
HOH
795
E
WAT
233
5
HOH
HOH
796
E
WAT
235
5
HOH
HOH
797
E
WAT
236
5
HOH
HOH
798
E
WAT
237
5
HOH
HOH
799
E
WAT
238
5
HOH
HOH
800
E
WAT
240
5
HOH
HOH
801
E
WAT
241
5
HOH
HOH
802
E
WAT
242
5
HOH
HOH
803
E
WAT
243
5
HOH
HOH
804
E
WAT
244
5
HOH
HOH
805
E
WAT
245
5
HOH
HOH
806
E
WAT
246
5
HOH
HOH
807
E
WAT
247
5
HOH
HOH
808
E
WAT
248
5
HOH
HOH
809
E
WAT
250
5
HOH
HOH
810
E
WAT
251
5
HOH
HOH
811
E
WAT
252
5
HOH
HOH
812
E
WAT
253
5
HOH
HOH
813
E
WAT
254
5
HOH
HOH
814
E
WAT
255
5
HOH
HOH
815
E
WAT
256
5
HOH
HOH
816
E
WAT
257
5
HOH
HOH
817
E
WAT
258
5
HOH
HOH
818
E
WAT
259
5
HOH
HOH
819
E
WAT
260
5
HOH
HOH
820
E
WAT
261
5
HOH
HOH
821
E
WAT
262
5
HOH
HOH
822
E
WAT
263
5
HOH
HOH
823
E
WAT
264
5
HOH
HOH
824
E
WAT
265
5
HOH
HOH
825
E
WAT
267
5
HOH
HOH
826
E
WAT
268
5
HOH
HOH
827
E
WAT
269
5
HOH
HOH
828
E
WAT
271
5
HOH
HOH
829
E
WAT
272
5
HOH
HOH
830
E
WAT
273
5
HOH
HOH
831
E
WAT
274
5
HOH
HOH
832
E
WAT
275
5
HOH
HOH
833
E
WAT
276
5
HOH
HOH
834
E
WAT
277
5
HOH
HOH
835
E
WAT
278
5
HOH
HOH
836
E
WAT
280
5
HOH
HOH
837
E
WAT
281
5
HOH
HOH
838
E
WAT
283
5
HOH
HOH
839
E
WAT
284
5
HOH
HOH
840
E
WAT
286
5
HOH
HOH
841
E
WAT
287
5
HOH
HOH
842
E
WAT
288
5
HOH
HOH
843
E
WAT
289
5
HOH
HOH
844
E
WAT
290
5
HOH
HOH
845
E
WAT
291
5
HOH
HOH
846
E
WAT
293
5
HOH
HOH
847
E
WAT
294
5
HOH
HOH
848
E
WAT
295
5
HOH
HOH
849
E
WAT
296
5
HOH
HOH
850
E
WAT
297
5
HOH
HOH
851
E
WAT
298
5
HOH
HOH
852
E
WAT
299
5
HOH
HOH
853
E
WAT
300
5
HOH
HOH
854
E
WAT
301
5
HOH
HOH
855
E
WAT
302
5
HOH
HOH
856
E
WAT
303
5
HOH
HOH
857
E
WAT
304
5
HOH
HOH
858
E
WAT
305
5
HOH
HOH
859
E
WAT
306
5
HOH
HOH
860
E
WAT
308
5
HOH
HOH
861
E
WAT
309
5
HOH
HOH
862
E
WAT
310
5
HOH
HOH
863
E
WAT
312
5
HOH
HOH
864
E
WAT
313
5
HOH
HOH
865
E
WAT
314
5
HOH
HOH
866
E
WAT
315
5
HOH
HOH
867
E
WAT
316
5
HOH
HOH
868
E
WAT
317
5
HOH
HOH
869
E
WAT
318
5
HOH
HOH
870
E
WAT
319
5
HOH
HOH
871
E
WAT
320
5
HOH
HOH
872
E
WAT
321
5
HOH
HOH
873
E
WAT
322
5
HOH
HOH
874
E
WAT
323
5
HOH
HOH
875
E
WAT
324
5
HOH
HOH
876
E
WAT
327
5
HOH
HOH
877
E
WAT
328
5
HOH
HOH
878
E
WAT
329
5
HOH
HOH
879
E
WAT
330
5
HOH
HOH
880
E
WAT
331
5
HOH
HOH
881
E
WAT
332
5
HOH
HOH
882
E
WAT
333
5
HOH
HOH
883
E
WAT
334
5
HOH
HOH
884
E
WAT
335
5
HOH
HOH
885
E
WAT
336
5
HOH
HOH
886
E
WAT
338
5
HOH
HOH
887
E
WAT
339
5
HOH
HOH
888
E
WAT
341
5
HOH
HOH
889
E
WAT
342
5
HOH
HOH
890
E
WAT
343
5
HOH
HOH
891
E
WAT
345
5
HOH
HOH
892
E
WAT
346
5
HOH
HOH
893
E
WAT
347
5
HOH
HOH
894
E
WAT
348
5
HOH
HOH
895
E
WAT
349
5
HOH
HOH
896
E
WAT
351
5
HOH
HOH
897
E
WAT
352
5
HOH
HOH
898
E
WAT
353
5
HOH
HOH
899
E
WAT
354
5
HOH
HOH
900
E
WAT
355
5
HOH
HOH
901
E
WAT
358
5
HOH
HOH
902
E
WAT
359
5
HOH
HOH
903
E
WAT
361
5
HOH
HOH
904
E
WAT
362
5
HOH
HOH
905
E
WAT
365
5
HOH
HOH
906
E
WAT
366
5
HOH
HOH
907
E
WAT
368
5
HOH
HOH
908
E
WAT
369
5
HOH
HOH
909
E
WAT
371
5
HOH
HOH
910
E
WAT
372
5
HOH
HOH
911
E
WAT
374
5
HOH
HOH
912
E
WAT
375
5
HOH
HOH
913
E
WAT
377
5
HOH
HOH
914
E
WAT
381
5
HOH
HOH
915
E
WAT
383
5
HOH
HOH
916
E
WAT
384
5
HOH
HOH
917
E
WAT
385
5
HOH
HOH
918
E
WAT
386
5
HOH
HOH
919
E
WAT
387
5
HOH
HOH
920
E
WAT
388
5
HOH
HOH
921
E
WAT
389
5
HOH
HOH
922
E
WAT
390
5
HOH
HOH
923
E
WAT
391
5
HOH
HOH
924
E
WAT
392
5
HOH
HOH
925
E
WAT
393
5
HOH
HOH
926
E
WAT
394
5
HOH
HOH
927
E
WAT
395
5
HOH
HOH
928
E
WAT
396
5
HOH
HOH
929
E
WAT
397
5
HOH
HOH
930
E
WAT
398
5
HOH
HOH
931
E
WAT
404
5
HOH
HOH
932
E
WAT
406
5
HOH
HOH
933
E
WAT
407
5
HOH
HOH
934
E
WAT
409
5
HOH
HOH
935
E
WAT
410
5
HOH
HOH
936
E
WAT
412
5
HOH
HOH
937
E
WAT
413
5
HOH
HOH
938
E
WAT
414
5
HOH
HOH
939
E
WAT
415
5
HOH
HOH
940
E
WAT
416
5
HOH
HOH
941
E
WAT
417
5
HOH
HOH
942
E
WAT
419
5
HOH
HOH
943
E
WAT
420
5
HOH
HOH
944
E
WAT
421
5
HOH
HOH
945
E
WAT
422
5
HOH
HOH
946
E
WAT
423
5
HOH
HOH
947
E
WAT
426
5
HOH
HOH
948
E
WAT
427
5
HOH
HOH
949
E
WAT
428
5
HOH
HOH
950
E
WAT
429
5
HOH
HOH
951
E
WAT
430
5
HOH
HOH
952
E
WAT
431
5
HOH
HOH
953
E
WAT
432
5
HOH
HOH
954
E
WAT
433
5
HOH
HOH
955
E
WAT
434
5
HOH
HOH
956
E
WAT
435
5
HOH
HOH
957
E
WAT
436
5
HOH
HOH
958
E
WAT
438
5
HOH
HOH
959
E
WAT
444
5
HOH
HOH
960
E
WAT
445
5
HOH
HOH
961
E
WAT
446
5
HOH
HOH
962
E
WAT
448
5
HOH
HOH
963
E
WAT
450
5
HOH
HOH
964
E
WAT
451
5
HOH
HOH
965
E
WAT
452
5
HOH
HOH
966
E
WAT
453
5
HOH
HOH
967
E
WAT
454
5
HOH
HOH
968
E
WAT
455
5
HOH
HOH
969
E
WAT
456
5
HOH
HOH
970
E
WAT
457
5
HOH
HOH
971
E
WAT
458
5
HOH
HOH
972
E
WAT
459
5
HOH
HOH
973
E
WAT
460
5
HOH
HOH
974
E
WAT
461
5
HOH
HOH
975
E
WAT
462
5
HOH
HOH
976
E
WAT
465
5
HOH
HOH
977
E
WAT
466
5
HOH
HOH
978
E
WAT
468
5
HOH
HOH
979
E
WAT
469
5
HOH
HOH
980
E
WAT
470
5
HOH
HOH
981
E
WAT
471
5
HOH
HOH
982
E
WAT
472
5
HOH
HOH
983
E
WAT
473
5
HOH
HOH
984
E
WAT
474
5
HOH
HOH
985
E
WAT
475
5
HOH
HOH
986
E
WAT
476
5
HOH
HOH
987
E
WAT
477
5
HOH
HOH
988
E
WAT
478
5
HOH
HOH
989
E
WAT
479
5
HOH
HOH
990
E
WAT
480
5
HOH
HOH
991
E
WAT
483
5
HOH
HOH
992
E
WAT
486
5
HOH
HOH
993
E
WAT
487
5
HOH
HOH
994
E
WAT
489
5
HOH
HOH
995
E
WAT
490
5
HOH
HOH
996
E
WAT
491
5
HOH
HOH
997
E
WAT
492
5
HOH
HOH
998
E
WAT
493
5
HOH
HOH
999
E
WAT
494
5
HOH
HOH
1000
E
WAT
495
5
HOH
HOH
1001
E
WAT
496
5
HOH
HOH
1002
E
WAT
497
5
HOH
HOH
1003
E
WAT
498
5
HOH
HOH
1004
E
WAT
500
5
HOH
HOH
1005
E
WAT
501
5
HOH
HOH
1006
E
WAT
502
5
HOH
HOH
1007
E
WAT
503
5
HOH
HOH
1008
E
WAT
504
5
HOH
HOH
1009
E
WAT
505
5
HOH
HOH
1010
E
WAT
1
5
HOH
HOH
84
I
WAT
2
5
HOH
HOH
85
I
WAT
3
5
HOH
HOH
86
I
WAT
21
5
HOH
HOH
87
I
WAT
23
5
HOH
HOH
88
I
WAT
24
5
HOH
HOH
89
I
WAT
31
5
HOH
HOH
90
I
WAT
44
5
HOH
HOH
91
I
WAT
51
5
HOH
HOH
92
I
WAT
52
5
HOH
HOH
93
I
WAT
58
5
HOH
HOH
94
I
WAT
64
5
HOH
HOH
95
I
WAT
70
5
HOH
HOH
96
I
WAT
71
5
HOH
HOH
97
I
WAT
89
5
HOH
HOH
98
I
WAT
95
5
HOH
HOH
99
I
WAT
96
5
HOH
HOH
100
I
WAT
99
5
HOH
HOH
101
I
WAT
107
5
HOH
HOH
102
I
WAT
114
5
HOH
HOH
103
I
WAT
115
5
HOH
HOH
104
I
WAT
121
5
HOH
HOH
105
I
WAT
129
5
HOH
HOH
106
I
WAT
131
5
HOH
HOH
107
I
WAT
137
5
HOH
HOH
108
I
WAT
139
5
HOH
HOH
109
I
WAT
148
5
HOH
HOH
110
I
WAT
158
5
HOH
HOH
111
I
WAT
160
5
HOH
HOH
112
I
WAT
171
5
HOH
HOH
113
I
WAT
174
5
HOH
HOH
114
I
WAT
176
5
HOH
HOH
115
I
WAT
178
5
HOH
HOH
116
I
WAT
185
5
HOH
HOH
117
I
WAT
191
5
HOH
HOH
118
I
WAT
195
5
HOH
HOH
119
I
WAT
197
5
HOH
HOH
120
I
WAT
199
5
HOH
HOH
121
I
WAT
200
5
HOH
HOH
122
I
WAT
203
5
HOH
HOH
123
I
WAT
214
5
HOH
HOH
124
I
WAT
225
5
HOH
HOH
125
I
WAT
234
5
HOH
HOH
126
I
WAT
239
5
HOH
HOH
127
I
WAT
249
5
HOH
HOH
128
I
WAT
266
5
HOH
HOH
129
I
WAT
270
5
HOH
HOH
130
I
WAT
279
5
HOH
HOH
131
I
WAT
282
5
HOH
HOH
132
I
WAT
285
5
HOH
HOH
133
I
WAT
292
5
HOH
HOH
134
I
WAT
307
5
HOH
HOH
135
I
WAT
311
5
HOH
HOH
136
I
WAT
325
5
HOH
HOH
137
I
WAT
326
5
HOH
HOH
138
I
WAT
337
5
HOH
HOH
139
I
WAT
340
5
HOH
HOH
140
I
WAT
344
5
HOH
HOH
141
I
WAT
350
5
HOH
HOH
142
I
WAT
356
5
HOH
HOH
143
I
WAT
357
5
HOH
HOH
144
I
WAT
360
5
HOH
HOH
145
I
WAT
363
5
HOH
HOH
146
I
WAT
364
5
HOH
HOH
147
I
WAT
367
5
HOH
HOH
148
I
WAT
370
5
HOH
HOH
149
I
WAT
373
5
HOH
HOH
150
I
WAT
376
5
HOH
HOH
151
I
WAT
378
5
HOH
HOH
152
I
WAT
379
5
HOH
HOH
153
I
WAT
380
5
HOH
HOH
154
I
WAT
382
5
HOH
HOH
155
I
WAT
399
5
HOH
HOH
156
I
WAT
400
5
HOH
HOH
157
I
WAT
401
5
HOH
HOH
158
I
WAT
402
5
HOH
HOH
159
I
WAT
403
5
HOH
HOH
160
I
WAT
405
5
HOH
HOH
161
I
WAT
408
5
HOH
HOH
162
I
WAT
411
5
HOH
HOH
163
I
WAT
418
5
HOH
HOH
164
I
WAT
424
5
HOH
HOH
165
I
WAT
425
5
HOH
HOH
166
I
WAT
437
5
HOH
HOH
167
I
WAT
439
5
HOH
HOH
168
I
WAT
440
5
HOH
HOH
169
I
WAT
441
5
HOH
HOH
170
I
WAT
442
5
HOH
HOH
171
I
WAT
443
5
HOH
HOH
172
I
WAT
447
5
HOH
HOH
173
I
WAT
449
5
HOH
HOH
174
I
WAT
463
5
HOH
HOH
175
I
WAT
464
5
HOH
HOH
176
I
WAT
467
5
HOH
HOH
177
I
WAT
481
5
HOH
HOH
178
I
WAT
482
5
HOH
HOH
179
I
WAT
484
5
HOH
HOH
180
I
WAT
485
5
HOH
HOH
181
I
WAT
488
5
HOH
HOH
182
I
WAT
499
5
HOH
HOH
183
I
ALA
1
n
1
ALA
1
E
GLN
2
n
2
GLN
2
E
SER
3
n
3
SER
3
E
VAL
4
n
4
VAL
4
E
PRO
5
n
5
PRO
5
E
TYR
6
n
6
TYR
6
E
GLY
7
n
7
GLY
7
E
VAL
8
n
8
VAL
8
E
SER
9
n
9
SER
9
E
GLN
10
n
10
GLN
10
E
ILE
11
n
11
ILE
11
E
LYS
12
n
12
LYS
12
E
ALA
13
n
13
ALA
13
E
PRO
14
n
14
PRO
14
E
ALA
15
n
15
ALA
15
E
LEU
16
n
16
LEU
16
E
HIS
17
n
17
HIS
17
E
SER
18
n
18
SER
18
E
GLN
19
n
19
GLN
19
E
GLY
20
n
20
GLY
20
E
TYR
21
n
21
TYR
21
E
THR
22
n
22
THR
22
E
GLY
23
n
23
GLY
23
E
SER
24
n
24
SER
24
E
ASN
25
n
25
ASN
25
E
VAL
26
n
26
VAL
26
E
LYS
27
n
27
LYS
27
E
VAL
28
n
28
VAL
28
E
ALA
29
n
29
ALA
29
E
VAL
30
n
30
VAL
30
E
ILE
31
n
31
ILE
31
E
ASP
32
n
32
ASP
32
E
SER
33
n
33
SER
33
E
GLY
34
n
34
GLY
34
E
ILE
35
n
35
ILE
35
E
ASP
36
n
36
ASP
36
E
SER
37
n
37
SER
37
E
SER
38
n
38
SER
38
E
HIS
39
n
39
HIS
39
E
PRO
40
n
40
PRO
40
E
ASP
41
n
41
ASP
41
E
LEU
42
n
42
LEU
42
E
LYS
43
n
43
LYS
43
E
VAL
44
n
44
VAL
44
E
ALA
45
n
45
ALA
45
E
GLY
46
n
46
GLY
46
E
GLY
47
n
47
GLY
47
E
ALA
48
n
48
ALA
48
E
SER
49
n
49
SER
49
E
MET
50
n
50
MET
50
E
VAL
51
n
51
VAL
51
E
PRO
52
n
52
PRO
52
E
SER
53
n
53
SER
53
E
GLU
54
n
54
GLU
54
E
THR
55
n
55
THR
55
E
ASN
56
n
56
ASN
56
E
PRO
57
n
57
PRO
57
E
PHE
58
n
58
PHE
58
E
GLN
59
n
59
GLN
59
E
ASP
60
n
60
ASP
60
E
ASN
61
n
61
ASN
61
E
ASN
62
n
62
ASN
62
E
SER
63
n
63
SER
63
E
HIS
64
n
64
HIS
64
E
GLY
65
n
65
GLY
65
E
THR
66
n
66
THR
66
E
HIS
67
n
67
HIS
67
E
VAL
68
n
68
VAL
68
E
ALA
69
n
69
ALA
69
E
GLY
70
n
70
GLY
70
E
THR
71
n
71
THR
71
E
VAL
72
n
72
VAL
72
E
ALA
73
n
73
ALA
73
E
ALA
74
n
74
ALA
74
E
LEU
75
n
75
LEU
75
E
ASN
76
n
76
ASN
76
E
ASN
77
n
77
ASN
77
E
SER
78
n
78
SER
78
E
ILE
79
n
79
ILE
79
E
GLY
80
n
80
GLY
80
E
VAL
81
n
81
VAL
81
E
LEU
82
n
82
LEU
82
E
GLY
83
n
83
GLY
83
E
VAL
84
n
84
VAL
84
E
ALA
85
n
85
ALA
85
E
PRO
86
n
86
PRO
86
E
SER
87
n
87
SER
87
E
ALA
88
n
88
ALA
88
E
SER
89
n
89
SER
89
E
LEU
90
n
90
LEU
90
E
TYR
91
n
91
TYR
91
E
ALA
92
n
92
ALA
92
E
VAL
93
n
93
VAL
93
E
LYS
94
n
94
LYS
94
E
VAL
95
n
95
VAL
95
E
LEU
96
n
96
LEU
96
E
GLY
97
n
97
GLY
97
E
ALA
98
n
98
ALA
98
E
ASP
99
n
99
ASP
99
E
GLY
100
n
100
GLY
100
E
SER
101
n
101
SER
101
E
GLY
102
n
102
GLY
102
E
GLN
103
n
103
GLN
103
E
TYR
104
n
104
TYR
104
E
SER
105
n
105
SER
105
E
TRP
106
n
106
TRP
106
E
ILE
107
n
107
ILE
107
E
ILE
108
n
108
ILE
108
E
ASN
109
n
109
ASN
109
E
GLY
110
n
110
GLY
110
E
ILE
111
n
111
ILE
111
E
GLU
112
n
112
GLU
112
E
TRP
113
n
113
TRP
113
E
ALA
114
n
114
ALA
114
E
ILE
115
n
115
ILE
115
E
ALA
116
n
116
ALA
116
E
ASN
117
n
117
ASN
117
E
ASN
118
n
118
ASN
118
E
MET
119
n
119
MET
119
E
ASP
120
n
120
ASP
120
E
VAL
121
n
121
VAL
121
E
ILE
122
n
122
ILE
122
E
ASN
123
n
123
ASN
123
E
MET
124
n
124
MET
124
E
SER
125
n
125
SER
125
E
LEU
126
n
126
LEU
126
E
GLY
127
n
127
GLY
127
E
GLY
128
n
128
GLY
128
E
PRO
129
n
129
PRO
129
E
SER
130
n
130
SER
130
E
GLY
131
n
131
GLY
131
E
SER
132
n
132
SER
132
E
ALA
133
n
133
ALA
133
E
ALA
134
n
134
ALA
134
E
LEU
135
n
135
LEU
135
E
LYS
136
n
136
LYS
136
E
ALA
137
n
137
ALA
137
E
ALA
138
n
138
ALA
138
E
VAL
139
n
139
VAL
139
E
ASP
140
n
140
ASP
140
E
LYS
141
n
141
LYS
141
E
ALA
142
n
142
ALA
142
E
VAL
143
n
143
VAL
143
E
ALA
144
n
144
ALA
144
E
SER
145
n
145
SER
145
E
GLY
146
n
146
GLY
146
E
VAL
147
n
147
VAL
147
E
VAL
148
n
148
VAL
148
E
VAL
149
n
149
VAL
149
E
VAL
150
n
150
VAL
150
E
ALA
151
n
151
ALA
151
E
ALA
152
n
152
ALA
152
E
ALA
153
n
153
ALA
153
E
GLY
154
n
154
GLY
154
E
ASN
155
n
155
ASN
155
E
GLU
156
n
156
GLU
156
E
GLY
157
n
157
GLY
157
E
THR
158
n
158
THR
158
E
SER
159
n
159
SER
159
E
GLY
160
n
160
GLY
160
E
SER
161
n
161
SER
161
E
SER
162
n
162
SER
162
E
SER
163
n
163
SER
163
E
THR
164
n
164
THR
164
E
VAL
165
n
165
VAL
165
E
GLY
166
n
166
GLY
166
E
TYR
167
n
167
TYR
167
E
PRO
168
n
168
PRO
168
E
GLY
169
n
169
GLY
169
E
LYS
170
n
170
LYS
170
E
TYR
171
n
171
TYR
171
E
PRO
172
n
172
PRO
172
E
SER
173
n
173
SER
173
E
VAL
174
n
174
VAL
174
E
ILE
175
n
175
ILE
175
E
ALA
176
n
176
ALA
176
E
VAL
177
n
177
VAL
177
E
GLY
178
n
178
GLY
178
E
ALA
179
n
179
ALA
179
E
VAL
180
n
180
VAL
180
E
ASP
181
n
181
ASP
181
E
SER
182
n
182
SER
182
E
SER
183
n
183
SER
183
E
ASN
184
n
184
ASN
184
E
GLN
185
n
185
GLN
185
E
ARG
186
n
186
ARG
186
E
ALA
187
n
187
ALA
187
E
SER
188
n
188
SER
188
E
PHE
189
n
189
PHE
189
E
SER
190
n
190
SER
190
E
SER
191
n
191
SER
191
E
VAL
192
n
192
VAL
192
E
GLY
193
n
193
GLY
193
E
PRO
194
n
194
PRO
194
E
GLU
195
n
195
GLU
195
E
LEU
196
n
196
LEU
196
E
ASP
197
n
197
ASP
197
E
VAL
198
n
198
VAL
198
E
MET
199
n
199
MET
199
E
ALA
200
n
200
ALA
200
E
PRO
201
n
201
PRO
201
E
GLY
202
n
202
GLY
202
E
VAL
203
n
203
VAL
203
E
SER
204
n
204
SER
204
E
ILE
205
n
205
ILE
205
E
GLN
206
n
206
GLN
206
E
SER
207
n
207
SER
207
E
THR
208
n
208
THR
208
E
LEU
209
n
209
LEU
209
E
PRO
210
n
210
PRO
210
E
GLY
211
n
211
GLY
211
E
ASN
212
n
212
ASN
212
E
LYS
213
n
213
LYS
213
E
TYR
214
n
214
TYR
214
E
GLY
215
n
215
GLY
215
E
ALA
216
n
216
ALA
216
E
TYR
217
n
217
TYR
217
E
ASN
218
n
218
ASN
218
E
GLY
219
n
219
GLY
219
E
THR
220
n
220
THR
220
E
SER
221
n
221
SER
221
E
MET
222
n
222
MET
222
E
ALA
223
n
223
ALA
223
E
SER
224
n
224
SER
224
E
PRO
225
n
225
PRO
225
E
HIS
226
n
226
HIS
226
E
VAL
227
n
227
VAL
227
E
ALA
228
n
228
ALA
228
E
GLY
229
n
229
GLY
229
E
ALA
230
n
230
ALA
230
E
ALA
231
n
231
ALA
231
E
ALA
232
n
232
ALA
232
E
LEU
233
n
233
LEU
233
E
ILE
234
n
234
ILE
234
E
LEU
235
n
235
LEU
235
E
SER
236
n
236
SER
236
E
LYS
237
n
237
LYS
237
E
HIS
238
n
238
HIS
238
E
PRO
239
n
239
PRO
239
E
ASN
240
n
240
ASN
240
E
TRP
241
n
241
TRP
241
E
THR
242
n
242
THR
242
E
ASN
243
n
243
ASN
243
E
THR
244
n
244
THR
244
E
GLN
245
n
245
GLN
245
E
VAL
246
n
246
VAL
246
E
ARG
247
n
247
ARG
247
E
SER
248
n
248
SER
248
E
SER
249
n
249
SER
249
E
LEU
250
n
250
LEU
250
E
GLN
251
n
251
GLU
251
E
ASN
252
n
252
ASN
252
E
THR
253
n
253
THR
253
E
THR
254
n
254
THR
254
E
THR
255
n
255
THR
255
E
LYS
256
n
256
LYS
256
E
LEU
257
n
257
LEU
257
E
GLY
258
n
258
GLY
258
E
ASP
259
n
259
ASP
259
E
SER
260
n
260
SER
260
E
PHE
261
n
261
PHE
261
E
TYR
262
n
262
TYR
262
E
TYR
263
n
263
TYR
263
E
GLY
264
n
264
GLY
264
E
LYS
265
n
265
LYS
265
E
GLY
266
n
266
GLY
266
E
LEU
267
n
267
LEU
267
E
ILE
268
n
268
ILE
268
E
ASN
269
n
269
ASN
269
E
VAL
270
n
270
VAL
270
E
GLN
271
n
271
GLN
271
E
ALA
272
n
272
ALA
272
E
ALA
273
n
273
ALA
273
E
ALA
274
n
274
ALA
274
E
GLN
275
n
275
GLN
275
E
HIS
276
n
276
HIS
276
E
HIS
277
n
277
HIS
277
E
HIS
278
n
278
HIS
278
E
HIS
279
n
279
HIS
279
E
HIS
280
n
280
HIS
280
E
HIS
281
n
281
HIS
281
E
n
1
20
I
LYS
21
n
2
LYS
21
I
THR
22
n
3
THR
22
I
GLU
23
n
4
GLU
23
I
TRP
24
n
5
TRP
24
I
PRO
25
n
6
PRO
25
I
GLU
26
n
7
GLU
26
I
LEU
27
n
8
LEU
27
I
VAL
28
n
9
VAL
28
I
GLY
29
n
10
GLY
29
I
LYS
30
n
11
LYS
30
I
SER
31
n
12
SER
31
I
VAL
32
n
13
VAL
32
I
GLU
33
n
14
GLU
33
I
GLU
34
n
15
GLU
34
I
ALA
35
n
16
ALA
35
I
LYS
36
n
17
LYS
36
I
LYS
37
n
18
LYS
37
I
VAL
38
n
19
VAL
38
I
ILE
39
n
20
ILE
39
I
LEU
40
n
21
LEU
40
I
GLN
41
n
22
GLN
41
I
ASP
42
n
23
ASP
42
I
LYS
43
n
24
LYS
43
I
PRO
44
n
25
PRO
44
I
GLU
45
n
26
ALA
45
I
ALA
46
n
27
ALA
46
I
GLN
47
n
28
GLN
47
I
ILE
48
n
29
ILE
48
I
ILE
49
n
30
ILE
49
I
VAL
50
n
31
VAL
50
I
LEU
51
n
32
LEU
51
I
PRO
52
n
33
PRO
52
I
VAL
53
n
34
VAL
53
I
GLY
54
n
35
GLY
54
I
THR
55
n
36
THR
55
I
ILE
56
n
37
ILE
56
I
VAL
57
n
38
VAL
57
I
THR
58
n
39
THR
58
I
MET
59
n
40
MET
59
I
GLU
60
n
41
GLU
60
I
TYR
61
n
42
TYR
61
I
ARG
62
n
43
ARG
62
I
ILE
63
n
44
ILE
63
I
ASP
64
n
45
ASP
64
I
ARG
65
n
46
ARG
65
I
VAL
66
n
47
VAL
66
I
ARG
67
n
48
ARG
67
I
LEU
68
n
49
LEU
68
I
PHE
69
n
50
PHE
69
I
VAL
70
n
51
VAL
70
I
ASP
71
n
52
ASP
71
I
LYS
72
n
53
LYS
72
I
LEU
73
n
54
LEU
73
I
ASP
74
n
55
ASP
74
I
ASN
75
n
56
ASN
75
I
ILE
76
n
57
ILE
76
I
ALA
77
n
58
ALA
77
I
GLU
78
n
59
GLN
78
I
VAL
79
n
60
VAL
79
I
PRO
80
n
61
PRO
80
I
ARG
81
n
62
ARG
81
I
VAL
82
n
63
VAL
82
I
GLY
83
n
64
GLY
83
I
author_and_software_defined_assembly
PISA
2
dimeric
2310
-58
13210
E
GLN
2
A
OE1
GLN
2
1_555
E
CA
300
C
CA
CA
1_555
E
ASP
41
A
OD1
ASP
41
1_555
154.9
E
GLN
2
A
OE1
GLN
2
1_555
E
CA
300
C
CA
CA
1_555
E
ASP
41
A
OD2
ASP
41
1_555
154.1
E
ASP
41
A
OD1
ASP
41
1_555
E
CA
300
C
CA
CA
1_555
E
ASP
41
A
OD2
ASP
41
1_555
50.4
E
GLN
2
A
OE1
GLN
2
1_555
E
CA
300
C
CA
CA
1_555
E
LEU
75
A
O
LEU
75
1_555
78.5
E
ASP
41
A
OD1
ASP
41
1_555
E
CA
300
C
CA
CA
1_555
E
LEU
75
A
O
LEU
75
1_555
108.2
E
ASP
41
A
OD2
ASP
41
1_555
E
CA
300
C
CA
CA
1_555
E
LEU
75
A
O
LEU
75
1_555
86.3
E
GLN
2
A
OE1
GLN
2
1_555
E
CA
300
C
CA
CA
1_555
E
ASN
77
A
OD1
ASN
77
1_555
79.8
E
ASP
41
A
OD1
ASP
41
1_555
E
CA
300
C
CA
CA
1_555
E
ASN
77
A
OD1
ASN
77
1_555
123.5
E
ASP
41
A
OD2
ASP
41
1_555
E
CA
300
C
CA
CA
1_555
E
ASN
77
A
OD1
ASN
77
1_555
79.0
E
LEU
75
A
O
LEU
75
1_555
E
CA
300
C
CA
CA
1_555
E
ASN
77
A
OD1
ASN
77
1_555
89.1
E
GLN
2
A
OE1
GLN
2
1_555
E
CA
300
C
CA
CA
1_555
E
ILE
79
A
O
ILE
79
1_555
90.3
E
ASP
41
A
OD1
ASP
41
1_555
E
CA
300
C
CA
CA
1_555
E
ILE
79
A
O
ILE
79
1_555
86.9
E
ASP
41
A
OD2
ASP
41
1_555
E
CA
300
C
CA
CA
1_555
E
ILE
79
A
O
ILE
79
1_555
99.4
E
LEU
75
A
O
LEU
75
1_555
E
CA
300
C
CA
CA
1_555
E
ILE
79
A
O
ILE
79
1_555
163.7
E
ASN
77
A
OD1
ASN
77
1_555
E
CA
300
C
CA
CA
1_555
E
ILE
79
A
O
ILE
79
1_555
77.2
E
GLN
2
A
OE1
GLN
2
1_555
E
CA
300
C
CA
CA
1_555
E
VAL
81
A
O
VAL
81
1_555
78.5
E
ASP
41
A
OD1
ASP
41
1_555
E
CA
300
C
CA
CA
1_555
E
VAL
81
A
O
VAL
81
1_555
77.5
E
ASP
41
A
OD2
ASP
41
1_555
E
CA
300
C
CA
CA
1_555
E
VAL
81
A
O
VAL
81
1_555
122.7
E
LEU
75
A
O
LEU
75
1_555
E
CA
300
C
CA
CA
1_555
E
VAL
81
A
O
VAL
81
1_555
89.7
E
ASN
77
A
OD1
ASN
77
1_555
E
CA
300
C
CA
CA
1_555
E
VAL
81
A
O
VAL
81
1_555
158.1
E
ILE
79
A
O
ILE
79
1_555
E
CA
300
C
CA
CA
1_555
E
VAL
81
A
O
VAL
81
1_555
99.8
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
E
N
GLY
46
A
N
GLY
46
E
O
ALA
92
A
O
ALA
92
E
O
SER
89
A
O
SER
89
E
N
VAL
28
A
N
VAL
28
E
N
ALA
29
A
N
ALA
29
E
O
VAL
121
A
O
VAL
121
E
N
ILE
122
A
N
ILE
122
E
O
VAL
148
A
O
VAL
148
E
N
ALA
151
A
N
ALA
151
E
O
ILE
175
A
O
ILE
175
E
N
GLY
178
A
N
GLY
178
E
O
VAL
198
A
O
VAL
198
E
N
GLY
102
A
N
GLY
102
I
O
ILE
56
B
O
ILE
37
I
O
VAL
57
B
O
VAL
38
E
N
GLY
127
A
N
GLY
127
E
N
ILE
205
A
N
ILE
205
E
O
TYR
217
A
O
TYR
217
I
N
ILE
49
B
N
ILE
30
I
O
LEU
68
B
O
LEU
49
I
N
ARG
67
B
N
ARG
48
I
O
ARG
81
B
O
ARG
62
1
I
MET
20
B
MET
1
1
Y
1
E
TYR
167
18.47
1
E
E
TYR
PRO
167
168
44.23
1
-12.76
2.10
120.10
107.34
E
E
E
CA
C
O
TYR
TYR
TYR
167
167
167
N
1
7.64
1.10
102.60
110.24
E
E
E
N
CA
CB
PRO
PRO
PRO
168
168
168
N
1
-5.22
0.50
120.30
115.08
E
E
E
NE
CZ
NH1
ARG
ARG
ARG
186
186
186
N
1
3.40
0.50
120.30
123.70
E
E
E
NE
CZ
NH2
ARG
ARG
ARG
186
186
186
N
1
E
E
CB
OG
SER
SER
145
145
-0.139
0.013
1.418
1.279
B
N
1
E
E
CD
OE2
GLU
GLU
251
251
0.074
0.011
1.252
1.326
N
1
E
ASP
32
-166.12
-147.61
1
E
SER
63
111.64
-23.84
1
E
ALA
73
-149.31
28.94
1
E
ASN
77
-158.15
-151.74
1
E
VAL
81
-116.39
-168.38
1
E
SER
159
-152.21
79.61
1
E
LEU
257
-118.27
-124.68
12.71
0.1880000
0.1690000
0.1700000
0.1700000
1.50
29.66
2889
57529
57374
5.0
96.8
random
1
-3.0
MOLECULAR REPLACEMENT
PDB ENTRY 2SNI
Engh & Huber
1.50
29.66
505
3049
21
0
2523
1.4
0.007
12.4
1.50
29.66
1LW6
57529
57374
-3.0
-3.0
0.0720000
1
15.3
6.5
96.8
1.50
1.58
4.3
7527
0.3400000
5.0
88.9
refinement
REFMAC
refinement
CNS
data reduction
MOSFLM
data scaling
CCP4
(SCALA
data scaling
TRUNCATE
phasing
CNS
Crystal Structure of the Complex of Subtilisin BPN' with Chymotrypsin Inhibitor 2 at 1.5 Angstrom Resolution
1
N
N
2
N
N
3
N
N
4
N
N
4
N
N
4
N
N
4
N
N
5
N
N
5
N
N
E
PRO
5
A
PRO
5
HELX_P
E
ILE
11
A
ILE
11
1
1
7
E
LYS
12
A
LYS
12
HELX_P
E
GLN
19
A
GLN
19
1
2
8
E
SER
63
A
SER
63
HELX_P
E
ALA
74
A
ALA
74
1
3
12
E
GLN
103
A
GLN
103
HELX_P
E
ASN
117
A
ASN
117
1
4
15
E
SER
132
A
SER
132
HELX_P
E
SER
145
A
SER
145
1
5
14
E
GLY
219
A
GLY
219
HELX_P
E
HIS
238
A
HIS
238
1
6
20
E
THR
242
A
THR
242
HELX_P
E
ASN
252
A
ASN
252
1
7
11
E
ASP
259
A
ASP
259
HELX_P
E
GLY
264
A
GLY
264
1
8
6
E
ASN
269
A
ASN
269
HELX_P
E
HIS
276
A
HIS
276
1
9
8
I
TRP
24
B
TRP
5
HELX_P
I
VAL
28
B
VAL
9
5
10
5
I
SER
31
B
SER
12
HELX_P
I
LYS
43
B
LYS
24
1
11
13
metalc
2.486
E
GLN
2
A
OE1
GLN
2
1_555
E
CA
300
C
CA
CA
1_555
metalc
2.618
E
ASP
41
A
OD1
ASP
41
1_555
E
CA
300
C
CA
CA
1_555
metalc
2.560
E
ASP
41
A
OD2
ASP
41
1_555
E
CA
300
C
CA
CA
1_555
metalc
2.471
E
LEU
75
A
O
LEU
75
1_555
E
CA
300
C
CA
CA
1_555
metalc
2.535
E
ASN
77
A
OD1
ASN
77
1_555
E
CA
300
C
CA
CA
1_555
metalc
2.531
E
ILE
79
A
O
ILE
79
1_555
E
CA
300
C
CA
CA
1_555
metalc
2.494
E
VAL
81
A
O
VAL
81
1_555
E
CA
300
C
CA
CA
1_555
HYDROLASE
SERINE PROTEASE, INHIBITOR, HYDROLASE
SUBT_BACAM
UNP
1
108
P00782
AQSVPYGVSQIKAPALHSQGYTGSNVKVAVIDSGIDSSHPDLKVAGGASMVPSETNPFQDNNSHGTHVAGTVAALNNSIG
VLGVAPSASLYAVKVLGADGSGQYSWIINGIEWAIANNMDVINMSLGGPSGSAALKAAVDKAVASGVVVVAAAGNEGTSG
SSSTVGYPGKYPSVIAVGAVDSSNQRASFSSVGPELDVMAPGVSIQSTLPGNKYGAYNGTSMASPHVAGAAALILSKHPN
WTNTQVRSSLENTTTKLGDSFYYGKGLINVQAAAQ
ICI2_HORVU
UNP
2
21
P01053
KTEWPELVGKSVEEAKKVILQDKPEAQIIVLPVGTIVTMEYRIDRVRLFVDKLDNIAQVPRVG
108
382
1LW6
1
275
P00782
E
1
1
275
21
83
1LW6
21
83
P01053
I
2
2
64
1
expression tag
HIS
276
1LW6
E
P00782
UNP
276
1
expression tag
HIS
277
1LW6
E
P00782
UNP
277
1
expression tag
HIS
278
1LW6
E
P00782
UNP
278
1
expression tag
HIS
279
1LW6
E
P00782
UNP
279
1
expression tag
HIS
280
1LW6
E
P00782
UNP
280
1
expression tag
HIS
281
1LW6
E
P00782
UNP
281
2
initiating methionine
MET
20
1LW6
I
P01053
UNP
1
2
GLU
engineered mutation
ALA
45
1LW6
I
P01053
UNP
45
26
7
3
2
3
parallel
parallel
parallel
parallel
parallel
parallel
anti-parallel
anti-parallel
anti-parallel
parallel
anti-parallel
E
VAL
44
A
VAL
44
E
SER
49
A
SER
49
E
SER
89
A
SER
89
E
LYS
94
A
LYS
94
E
LYS
27
A
LYS
27
E
ASP
32
A
ASP
32
E
VAL
121
A
VAL
121
E
MET
124
A
MET
124
E
VAL
148
A
VAL
148
E
ALA
152
A
ALA
152
E
ILE
175
A
ILE
175
E
VAL
180
A
VAL
180
E
VAL
198
A
VAL
198
E
PRO
201
A
PRO
201
E
SER
101
A
SER
101
E
GLY
102
A
GLY
102
I
ILE
56
B
ILE
37
I
THR
58
B
THR
39
E
LEU
126
A
LEU
126
E
GLY
127
A
GLY
127
E
ILE
205
A
ILE
205
E
LEU
209
A
LEU
209
E
LYS
213
A
LYS
213
E
TYR
217
A
TYR
217
I
GLN
47
B
GLN
28
I
PRO
52
B
PRO
33
I
ARG
65
B
ARG
46
I
VAL
70
B
VAL
51
I
ARG
81
B
ARG
62
I
VAL
82
B
VAL
63
BINDING SITE FOR RESIDUE CA E 300
E
CA
300
Software
6
BINDING SITE FOR RESIDUE SO4 E 602
E
SO4
602
Software
9
BINDING SITE FOR RESIDUE SO4 E 603
E
SO4
603
Software
6
BINDING SITE FOR RESIDUE SO4 E 604
E
SO4
604
Software
9
BINDING SITE FOR RESIDUE SO4 E 605
E
SO4
605
Software
5
E
GLN
2
A
GLN
2
6
1_555
E
ASP
41
A
ASP
41
6
1_555
E
LEU
75
A
LEU
75
6
1_555
E
ASN
77
A
ASN
77
6
1_555
E
ILE
79
A
ILE
79
6
1_555
E
VAL
81
A
VAL
81
6
1_555
E
SER
248
A
SER
248
9
1_555
E
ASN
252
A
ASN
252
9
1_555
E
HIS
276
A
HIS
276
9
1_555
E
HIS
278
A
HIS
278
9
1_555
E
HIS
279
A
HIS
279
9
1_555
E
HIS
280
A
HIS
280
9
1_555
E
HIS
281
A
HIS
281
9
1_555
E
HOH
734
H
HOH
9
1_555
E
HOH
754
H
HOH
9
1_555
E
THR
253
A
THR
253
6
3_545
E
HIS
276
A
HIS
276
6
3_545
E
HIS
277
A
HIS
277
6
3_545
E
HOH
684
H
HOH
6
3_545
E
HOH
995
H
HOH
6
3_545
E
HOH
996
H
HOH
6
3_545
E
GLN
103
A
GLN
103
9
4_445
E
TYR
104
A
TYR
104
9
4_445
E
SER
105
A
SER
105
9
4_445
E
SER
159
A
SER
159
9
1_555
E
GLY
160
A
GLY
160
9
1_555
E
HOH
835
H
HOH
9
1_555
E
HOH
990
H
HOH
9
1_555
E
HOH
1008
H
HOH
9
1_555
I
HOH
87
I
HOH
9
4_445
E
SER
18
A
SER
18
5
3_545
E
HIS
281
A
HIS
281
5
1_555
E
HOH
655
H
HOH
5
1_555
E
HOH
741
H
HOH
5
1_555
E
HOH
966
H
HOH
5
1_555
19
P 21 21 21