0.011744
0.000000
0.000359
0.000000
0.017800
0.000000
0.000000
0.000000
0.012400
0.00000
0.00000
0.00000
Brinen, L.S.
Fletterick, R.J.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
4
90.00
91.75
90.00
85.150
56.180
80.680
C2 H3 O2 -1
59.044
ACETATE ION
non-polymer
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
US
Biochemistry
BICHAW
0033
0006-2960
35
5999
6009
10.1021/bi9530200
8634241
X-ray structures of a designed binding site in trypsin show metal-dependent geometry.
1996
UK
Embo J.
EMJODG
0897
0261-4189
13
1502
Macromolecular Chelation as an Improved Mechanism of Protease Inhibition: Structure of the Ecotin-Trypsin Complex
1994
10.2210/pdb1slu/pdb
pdb_00001slu
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
298
1
IMAGE PLATE
1994-07-07
RIGAKU
M
x-ray
1
1.5418
1.0
1.5418
16187.577
ECOTIN
CHAIN A, A86H
1
man
polymer
23847.914
ANIONIC TRYPSIN
3.4.21.4
CHAIN B, N143H, E151H
1
man
polymer
40.078
CALCIUM ION
1
syn
non-polymer
59.044
ACETATE ION
1
syn
non-polymer
18.015
water
137
nat
water
TRYPSIN INHIBITOR
no
no
AESVQPLEKIAPYPQAEKGMKRQVIQLTPQEDESTLKVELLIGQTLEVDCNLHRLGGKLENKTLEGWGYDYYVFDKVSSP
VSTMMHCPDGKKEKKFVTAYLGDAGMLRYNSKLPIVVYTPDNVDVKYRVWKAEEKIDNAVVR
AESVQPLEKIAPYPQAEKGMKRQVIQLTPQEDESTLKVELLIGQTLEVDCNLHRLGGKLENKTLEGWGYDYYVFDKVSSP
VSTMMHCPDGKKEKKFVTAYLGDAGMLRYNSKLPIVVYTPDNVDVKYRVWKAEEKIDNAVVR
A
polypeptide(L)
no
no
IVGGYTCQENSVPYQVSLNSGYHFCGGSLINDQWVVSAAHCYKSRIQVRLGEHNINVLEGNEQFVNAAKIIKHPNFDRKT
LNNDIMLIKLSSPVKLNARVATVALPSSCAPAGTQCLISGWGHTLSSGVNHPDLLQCLDAPLLPQADCEASYPGKITDNM
VCVGFLEGGKDSCQGDSGGPVVCNGELQGIVSWGYGCALPDNPGVYTKVCNYVDWIQDTIAAN
IVGGYTCQENSVPYQVSLNSGYHFCGGSLINDQWVVSAAHCYKSRIQVRLGEHNINVLEGNEQFVNAAKIIKHPNFDRKT
LNNDIMLIKLSSPVKLNARVATVALPSSCAPAGTQCLISGWGHTLSSGVNHPDLLQCLDAPLLPQADCEASYPGKITDNM
VCVGFLEGGKDSCQGDSGGPVVCNGELQGIVSWGYGCALPDNPGVYTKVCNYVDWIQDTIAAN
B
polypeptide(L)
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
Escherichia
Escherichia
sample
562
Escherichia coli
ECOTIN
562
Escherichia coli
PTACTAC
Norway rat
Rattus
baker's yeast
Saccharomyces
sample
10116
Rattus norvegicus
RAT ANIONIC TRYPSIN
4932
Saccharomyces cerevisiae
PST
1
2.41
49.
database_2
pdbx_struct_conn_angle
struct_conn
struct_ref_seq_dif
struct_site
repository
Initial release
Version format compliance
Derived calculations
Version format compliance
Database references
Derived calculations
1
0
1996-07-11
1
1
2008-03-03
1
2
2011-07-13
1
3
2021-11-03
_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
Y
BNL
1996-02-07
REL
CA
CALCIUM ION
ACT
ACETATE ION
HOH
water
CA
101
3
CA
CA
246
B
ACT
102
4
ACT
ACT
247
B
HOH
18
5
HOH
HOH
143
A
HOH
19
5
HOH
HOH
144
A
HOH
29
5
HOH
HOH
145
A
HOH
35
5
HOH
HOH
146
A
HOH
40
5
HOH
HOH
147
A
HOH
41
5
HOH
HOH
148
A
HOH
42
5
HOH
HOH
149
A
HOH
43
5
HOH
HOH
150
A
HOH
44
5
HOH
HOH
151
A
HOH
45
5
HOH
HOH
152
A
HOH
48
5
HOH
HOH
153
A
HOH
49
5
HOH
HOH
154
A
HOH
53
5
HOH
HOH
155
A
HOH
56
5
HOH
HOH
156
A
HOH
57
5
HOH
HOH
157
A
HOH
58
5
HOH
HOH
158
A
HOH
59
5
HOH
HOH
159
A
HOH
60
5
HOH
HOH
160
A
HOH
61
5
HOH
HOH
161
A
HOH
63
5
HOH
HOH
162
A
HOH
65
5
HOH
HOH
163
A
HOH
66
5
HOH
HOH
164
A
HOH
67
5
HOH
HOH
165
A
HOH
68
5
HOH
HOH
166
A
HOH
79
5
HOH
HOH
167
A
HOH
80
5
HOH
HOH
168
A
HOH
81
5
HOH
HOH
169
A
HOH
84
5
HOH
HOH
170
A
HOH
85
5
HOH
HOH
171
A
HOH
86
5
HOH
HOH
172
A
HOH
88
5
HOH
HOH
173
A
HOH
98
5
HOH
HOH
174
A
HOH
99
5
HOH
HOH
175
A
HOH
101
5
HOH
HOH
176
A
HOH
102
5
HOH
HOH
177
A
HOH
104
5
HOH
HOH
178
A
HOH
105
5
HOH
HOH
179
A
HOH
106
5
HOH
HOH
180
A
HOH
107
5
HOH
HOH
181
A
HOH
113
5
HOH
HOH
182
A
HOH
115
5
HOH
HOH
183
A
HOH
122
5
HOH
HOH
184
A
HOH
123
5
HOH
HOH
185
A
HOH
124
5
HOH
HOH
186
A
HOH
134
5
HOH
HOH
187
A
HOH
135
5
HOH
HOH
188
A
HOH
136
5
HOH
HOH
189
A
HOH
1
5
HOH
HOH
248
B
HOH
2
5
HOH
HOH
249
B
HOH
3
5
HOH
HOH
250
B
HOH
4
5
HOH
HOH
251
B
HOH
5
5
HOH
HOH
252
B
HOH
6
5
HOH
HOH
253
B
HOH
7
5
HOH
HOH
254
B
HOH
8
5
HOH
HOH
255
B
HOH
9
5
HOH
HOH
256
B
HOH
10
5
HOH
HOH
257
B
HOH
11
5
HOH
HOH
258
B
HOH
12
5
HOH
HOH
259
B
HOH
13
5
HOH
HOH
260
B
HOH
14
5
HOH
HOH
261
B
HOH
15
5
HOH
HOH
262
B
HOH
16
5
HOH
HOH
263
B
HOH
17
5
HOH
HOH
264
B
HOH
20
5
HOH
HOH
265
B
HOH
21
5
HOH
HOH
266
B
HOH
22
5
HOH
HOH
267
B
HOH
23
5
HOH
HOH
268
B
HOH
24
5
HOH
HOH
269
B
HOH
25
5
HOH
HOH
270
B
HOH
26
5
HOH
HOH
271
B
HOH
27
5
HOH
HOH
272
B
HOH
28
5
HOH
HOH
273
B
HOH
30
5
HOH
HOH
274
B
HOH
31
5
HOH
HOH
275
B
HOH
32
5
HOH
HOH
276
B
HOH
33
5
HOH
HOH
277
B
HOH
34
5
HOH
HOH
278
B
HOH
36
5
HOH
HOH
279
B
HOH
37
5
HOH
HOH
280
B
HOH
38
5
HOH
HOH
281
B
HOH
39
5
HOH
HOH
282
B
HOH
46
5
HOH
HOH
283
B
HOH
47
5
HOH
HOH
284
B
HOH
50
5
HOH
HOH
285
B
HOH
51
5
HOH
HOH
286
B
HOH
52
5
HOH
HOH
287
B
HOH
54
5
HOH
HOH
288
B
HOH
55
5
HOH
HOH
289
B
HOH
62
5
HOH
HOH
290
B
HOH
64
5
HOH
HOH
291
B
HOH
69
5
HOH
HOH
292
B
HOH
70
5
HOH
HOH
293
B
HOH
71
5
HOH
HOH
294
B
HOH
72
5
HOH
HOH
295
B
HOH
73
5
HOH
HOH
296
B
HOH
74
5
HOH
HOH
297
B
HOH
75
5
HOH
HOH
298
B
HOH
76
5
HOH
HOH
299
B
HOH
77
5
HOH
HOH
300
B
HOH
78
5
HOH
HOH
301
B
HOH
82
5
HOH
HOH
302
B
HOH
83
5
HOH
HOH
303
B
HOH
87
5
HOH
HOH
304
B
HOH
89
5
HOH
HOH
305
B
HOH
90
5
HOH
HOH
306
B
HOH
91
5
HOH
HOH
307
B
HOH
92
5
HOH
HOH
308
B
HOH
93
5
HOH
HOH
309
B
HOH
94
5
HOH
HOH
310
B
HOH
95
5
HOH
HOH
311
B
HOH
96
5
HOH
HOH
312
B
HOH
97
5
HOH
HOH
313
B
HOH
100
5
HOH
HOH
314
B
HOH
103
5
HOH
HOH
315
B
HOH
108
5
HOH
HOH
316
B
HOH
109
5
HOH
HOH
317
B
HOH
110
5
HOH
HOH
318
B
HOH
111
5
HOH
HOH
319
B
HOH
112
5
HOH
HOH
320
B
HOH
114
5
HOH
HOH
321
B
HOH
116
5
HOH
HOH
322
B
HOH
117
5
HOH
HOH
323
B
HOH
118
5
HOH
HOH
324
B
HOH
119
5
HOH
HOH
325
B
HOH
120
5
HOH
HOH
326
B
HOH
121
5
HOH
HOH
327
B
HOH
125
5
HOH
HOH
328
B
HOH
126
5
HOH
HOH
329
B
HOH
127
5
HOH
HOH
330
B
HOH
128
5
HOH
HOH
331
B
HOH
129
5
HOH
HOH
332
B
HOH
130
5
HOH
HOH
333
B
HOH
131
5
HOH
HOH
334
B
HOH
132
5
HOH
HOH
335
B
HOH
133
5
HOH
HOH
336
B
HOH
137
5
HOH
HOH
337
B
n
1
1
A
n
2
2
A
n
3
3
A
n
4
4
A
n
5
5
A
n
6
6
A
n
7
7
A
n
8
8
A
n
9
9
A
ILE
10
n
10
ILE
10
A
ALA
11
n
11
ALA
11
A
PRO
12
n
12
PRO
12
A
TYR
13
n
13
TYR
13
A
PRO
14
n
14
PRO
14
A
GLN
15
n
15
GLN
15
A
ALA
16
n
16
ALA
16
A
GLU
17
n
17
GLU
17
A
LYS
18
n
18
LYS
18
A
GLY
19
n
19
GLY
19
A
MET
20
n
20
MET
20
A
LYS
21
n
21
LYS
21
A
ARG
22
n
22
ARG
22
A
GLN
23
n
23
GLN
23
A
VAL
24
n
24
VAL
24
A
ILE
25
n
25
ILE
25
A
GLN
26
n
26
GLN
26
A
LEU
27
n
27
LEU
27
A
THR
28
n
28
THR
28
A
PRO
29
n
29
PRO
29
A
GLN
30
n
30
GLN
30
A
GLU
31
n
31
GLU
31
A
ASP
32
n
32
ASP
32
A
GLU
33
n
33
GLU
33
A
SER
34
n
34
SER
34
A
THR
35
n
35
THR
35
A
LEU
36
n
36
LEU
36
A
LYS
37
n
37
LYS
37
A
VAL
38
n
38
VAL
38
A
GLU
39
n
39
GLU
39
A
LEU
40
n
40
LEU
40
A
LEU
41
n
41
LEU
41
A
ILE
42
n
42
ILE
42
A
GLY
43
n
43
GLY
43
A
GLN
44
n
44
GLN
44
A
THR
45
n
45
THR
45
A
LEU
46
n
46
LEU
46
A
GLU
47
n
47
GLU
47
A
VAL
48
n
48
VAL
48
A
ASP
49
n
49
ASP
49
A
CYS
50
n
50
CYS
50
A
ASN
51
n
51
ASN
51
A
LEU
52
n
52
LEU
52
A
HIS
53
n
53
HIS
53
A
ARG
54
n
54
ARG
54
A
LEU
55
n
55
LEU
55
A
GLY
56
n
56
GLY
56
A
GLY
57
n
57
GLY
57
A
LYS
58
n
58
LYS
58
A
LEU
59
n
59
LEU
59
A
GLU
60
n
60
GLU
60
A
ASN
61
n
61
ASN
61
A
LYS
62
n
62
LYS
62
A
THR
63
n
63
THR
63
A
LEU
64
n
64
LEU
64
A
GLU
65
n
65
GLU
65
A
GLY
66
n
66
GLY
66
A
TRP
67
n
67
TRP
67
A
GLY
68
n
68
GLY
68
A
TYR
69
n
69
TYR
69
A
ASP
70
n
70
ASP
70
A
TYR
71
n
71
TYR
71
A
TYR
72
n
72
TYR
72
A
VAL
73
n
73
VAL
73
A
PHE
74
n
74
PHE
74
A
ASP
75
n
75
ASP
75
A
LYS
76
n
76
LYS
76
A
VAL
77
n
77
VAL
77
A
SER
78
n
78
SER
78
A
SER
79
n
79
SER
79
A
PRO
80
n
80
PRO
80
A
VAL
81
n
81
VAL
81
A
SER
82
n
82
SER
82
A
THR
83
n
83
THR
83
A
MET
84
n
84
MET
84
A
MET
85
n
85
MET
85
A
HIS
86
n
86
HIS
86
A
CYS
87
n
87
CYS
87
A
PRO
88
n
88
PRO
88
A
ASP
89
n
89
ASP
89
A
n
90
90
A
n
91
91
A
LYS
92
n
92
LYS
92
A
GLU
93
n
93
GLU
93
A
LYS
94
n
94
LYS
94
A
LYS
95
n
95
LYS
95
A
PHE
96
n
96
PHE
96
A
VAL
97
n
97
VAL
97
A
THR
98
n
98
THR
98
A
ALA
99
n
99
ALA
99
A
TYR
100
n
100
TYR
100
A
LEU
101
n
101
LEU
101
A
GLY
102
n
102
GLY
102
A
ASP
103
n
103
ASP
103
A
ALA
104
n
104
ALA
104
A
GLY
105
n
105
GLY
105
A
MET
106
n
106
MET
106
A
LEU
107
n
107
LEU
107
A
ARG
108
n
108
ARG
108
A
TYR
109
n
109
TYR
109
A
ASN
110
n
110
ASN
110
A
SER
111
n
111
SER
111
A
LYS
112
n
112
LYS
112
A
LEU
113
n
113
LEU
113
A
PRO
114
n
114
PRO
114
A
ILE
115
n
115
ILE
115
A
VAL
116
n
116
VAL
116
A
VAL
117
n
117
VAL
117
A
TYR
118
n
118
TYR
118
A
THR
119
n
119
THR
119
A
PRO
120
n
120
PRO
120
A
ASP
121
n
121
ASP
121
A
ASN
122
n
122
ASN
122
A
VAL
123
n
123
VAL
123
A
ASP
124
n
124
ASP
124
A
VAL
125
n
125
VAL
125
A
LYS
126
n
126
LYS
126
A
TYR
127
n
127
TYR
127
A
ARG
128
n
128
ARG
128
A
VAL
129
n
129
VAL
129
A
TRP
130
n
130
TRP
130
A
LYS
131
n
131
LYS
131
A
ALA
132
n
132
ALA
132
A
GLU
133
n
133
GLU
133
A
GLU
134
n
134
GLU
134
A
LYS
135
n
135
LYS
135
A
ILE
136
n
136
ILE
136
A
ASP
137
n
137
ASP
137
A
ASN
138
n
138
ASN
138
A
ALA
139
n
139
ALA
139
A
VAL
140
n
140
VAL
140
A
VAL
141
n
141
VAL
141
A
ARG
142
n
142
ARG
142
A
ILE
16
n
1
ILE
16
B
VAL
17
n
2
VAL
17
B
GLY
18
n
3
GLY
18
B
GLY
19
n
4
GLY
19
B
TYR
20
n
5
TYR
20
B
THR
21
n
6
THR
21
B
CYS
22
n
7
CYS
22
B
GLN
23
n
8
GLN
23
B
GLU
24
n
9
GLU
24
B
ASN
25
n
10
ASN
25
B
SER
26
n
11
SER
26
B
VAL
27
n
12
VAL
27
B
PRO
28
n
13
PRO
28
B
TYR
29
n
14
TYR
29
B
GLN
30
n
15
GLN
30
B
VAL
31
n
16
VAL
31
B
SER
32
n
17
SER
32
B
LEU
33
n
18
LEU
33
B
ASN
34
n
19
ASN
34
B
SER
37
n
20
SER
37
B
GLY
38
n
21
GLY
38
B
TYR
39
n
22
TYR
39
B
HIS
40
n
23
HIS
40
B
PHE
41
n
24
PHE
41
B
CYS
42
n
25
CYS
42
B
GLY
43
n
26
GLY
43
B
GLY
44
n
27
GLY
44
B
SER
45
n
28
SER
45
B
LEU
46
n
29
LEU
46
B
ILE
47
n
30
ILE
47
B
ASN
48
n
31
ASN
48
B
ASP
49
n
32
ASP
49
B
GLN
50
n
33
GLN
50
B
TRP
51
n
34
TRP
51
B
VAL
52
n
35
VAL
52
B
VAL
53
n
36
VAL
53
B
SER
54
n
37
SER
54
B
ALA
55
n
38
ALA
55
B
ALA
56
n
39
ALA
56
B
HIS
57
n
40
HIS
57
B
CYS
58
n
41
CYS
58
B
TYR
59
n
42
TYR
59
B
LYS
60
n
43
LYS
60
B
SER
61
n
44
SER
61
B
ARG
62
n
45
ARG
62
B
ILE
63
n
46
ILE
63
B
GLN
64
n
47
GLN
64
B
VAL
65
n
48
VAL
65
B
ARG
66
n
49
ARG
66
B
LEU
68
n
50
LEU
68
B
GLY
69
n
51
GLY
69
B
GLU
70
n
52
GLU
70
B
HIS
71
n
53
HIS
71
B
ASN
72
n
54
ASN
72
B
ILE
73
n
55
ILE
73
B
ASN
74
n
56
ASN
74
B
VAL
75
n
57
VAL
75
B
LEU
76
n
58
LEU
76
B
GLU
77
n
59
GLU
77
B
GLY
78
n
60
GLY
78
B
ASN
79
n
61
ASN
79
B
GLU
80
n
62
GLU
80
B
GLN
81
n
63
GLN
81
B
PHE
82
n
64
PHE
82
B
VAL
83
n
65
VAL
83
B
ASN
84
n
66
ASN
84
B
ALA
85
n
67
ALA
85
B
ALA
86
n
68
ALA
86
B
LYS
87
n
69
LYS
87
B
ILE
88
n
70
ILE
88
B
ILE
89
n
71
ILE
89
B
LYS
90
n
72
LYS
90
B
HIS
91
n
73
HIS
91
B
PRO
92
n
74
PRO
92
B
ASN
93
n
75
ASN
93
B
PHE
94
n
76
PHE
94
B
ASP
95
n
77
ASP
95
B
ARG
96
n
78
ARG
96
B
LYS
97
n
79
LYS
97
B
THR
98
n
80
THR
98
B
LEU
99
n
81
LEU
99
B
ASN
100
n
82
ASN
100
B
ASN
101
n
83
ASN
101
B
ASP
102
n
84
ASP
102
B
ILE
103
n
85
ILE
103
B
MET
104
n
86
MET
104
B
LEU
105
n
87
LEU
105
B
ILE
106
n
88
ILE
106
B
LYS
107
n
89
LYS
107
B
LEU
108
n
90
LEU
108
B
SER
109
n
91
SER
109
B
SER
110
n
92
SER
110
B
PRO
111
n
93
PRO
111
B
VAL
112
n
94
VAL
112
B
LYS
113
n
95
LYS
113
B
n
96
114
B
n
97
115
B
n
98
116
B
n
99
117
B
VAL
118
n
100
VAL
118
B
ALA
119
n
101
ALA
119
B
THR
120
n
102
THR
120
B
VAL
121
n
103
VAL
121
B
ALA
122
n
104
ALA
122
B
LEU
123
n
105
LEU
123
B
PRO
124
n
106
PRO
124
B
SER
125
n
107
SER
125
B
SER
127
n
108
SER
127
B
CYS
128
n
109
CYS
128
B
ALA
129
n
110
ALA
129
B
PRO
130
n
111
PRO
130
B
ALA
132
n
112
ALA
132
B
GLY
133
n
113
GLY
133
B
THR
134
n
114
THR
134
B
GLN
135
n
115
GLN
135
B
CYS
136
n
116
CYS
136
B
LEU
137
n
117
LEU
137
B
ILE
138
n
118
ILE
138
B
SER
139
n
119
SER
139
B
GLY
140
n
120
GLY
140
B
TRP
141
n
121
TRP
141
B
GLY
142
n
122
GLY
142
B
HIS
143
n
123
HIS
143
B
THR
144
n
124
THR
144
B
LEU
145
n
125
LEU
145
B
n
126
146
B
n
127
147
B
n
128
148
B
VAL
149
n
129
VAL
149
B
ASN
150
n
130
ASN
150
B
HIS
151
n
131
HIS
151
B
PRO
152
n
132
PRO
152
B
ASP
153
n
133
ASP
153
B
LEU
154
n
134
LEU
154
B
LEU
155
n
135
LEU
155
B
GLN
156
n
136
GLN
156
B
CYS
157
n
137
CYS
157
B
LEU
158
n
138
LEU
158
B
ASP
159
n
139
ASP
159
B
ALA
160
n
140
ALA
160
B
PRO
161
n
141
PRO
161
B
LEU
162
n
142
LEU
162
B
LEU
163
n
143
LEU
163
B
PRO
164
n
144
PRO
164
B
GLN
165
n
145
GLN
165
B
ALA
166
n
146
ALA
166
B
ASP
167
n
147
ASP
167
B
CYS
168
n
148
CYS
168
B
GLU
169
n
149
GLU
169
B
ALA
170
n
150
ALA
170
B
SER
171
n
151
SER
171
B
TYR
172
n
152
TYR
172
B
PRO
173
n
153
PRO
173
B
GLY
174
n
154
GLY
174
B
LYS
175
n
155
LYS
175
B
ILE
176
n
156
ILE
176
B
THR
177
n
157
THR
177
B
ASP
178
n
158
ASP
178
B
ASN
179
n
159
ASN
179
B
MET
180
n
160
MET
180
B
VAL
181
n
161
VAL
181
B
CYS
182
n
162
CYS
182
B
VAL
183
n
163
VAL
183
B
GLY
184
n
164
GLY
184
B
PHE
184
n
165
A
PHE
184
B
LEU
185
n
166
LEU
185
B
GLU
186
n
167
GLU
186
B
GLY
187
n
168
GLY
187
B
GLY
188
n
169
GLY
188
B
LYS
188
n
170
A
LYS
188
B
ASP
189
n
171
ASP
189
B
SER
190
n
172
SER
190
B
CYS
191
n
173
CYS
191
B
GLN
192
n
174
GLN
192
B
GLY
193
n
175
GLY
193
B
ASP
194
n
176
ASP
194
B
SER
195
n
177
SER
195
B
GLY
196
n
178
GLY
196
B
GLY
197
n
179
GLY
197
B
PRO
198
n
180
PRO
198
B
VAL
199
n
181
VAL
199
B
VAL
200
n
182
VAL
200
B
CYS
201
n
183
CYS
201
B
ASN
202
n
184
ASN
202
B
GLY
203
n
185
GLY
203
B
GLU
204
n
186
GLU
204
B
LEU
209
n
187
LEU
209
B
GLN
210
n
188
GLN
210
B
GLY
211
n
189
GLY
211
B
ILE
212
n
190
ILE
212
B
VAL
213
n
191
VAL
213
B
SER
214
n
192
SER
214
B
TRP
215
n
193
TRP
215
B
GLY
216
n
194
GLY
216
B
TYR
217
n
195
TYR
217
B
GLY
219
n
196
GLY
219
B
CYS
220
n
197
CYS
220
B
ALA
221
n
198
ALA
221
B
LEU
221
n
199
A
LEU
221
B
PRO
222
n
200
PRO
222
B
ASP
223
n
201
ASP
223
B
ASN
224
n
202
ASN
224
B
PRO
225
n
203
PRO
225
B
GLY
226
n
204
GLY
226
B
VAL
227
n
205
VAL
227
B
TYR
228
n
206
TYR
228
B
THR
229
n
207
THR
229
B
LYS
230
n
208
LYS
230
B
VAL
231
n
209
VAL
231
B
CYS
232
n
210
CYS
232
B
ASN
233
n
211
ASN
233
B
TYR
234
n
212
TYR
234
B
VAL
235
n
213
VAL
235
B
ASP
236
n
214
ASP
236
B
TRP
237
n
215
TRP
237
B
ILE
238
n
216
ILE
238
B
GLN
239
n
217
GLN
239
B
ASP
240
n
218
ASP
240
B
THR
241
n
219
THR
241
B
ILE
242
n
220
ILE
242
B
ALA
243
n
221
ALA
243
B
ALA
244
n
222
ALA
244
B
ASN
245
n
223
ASN
245
B
author_and_software_defined_assembly
PISA,PQS
4
tetrameric
9080
-63
30110
B
GLU
70
B
OE1
GLU
52
1_555
B
CA
246
C
CA
CA
1_555
B
ASN
72
B
O
ASN
54
1_555
76.1
B
GLU
70
B
OE1
GLU
52
1_555
B
CA
246
C
CA
CA
1_555
B
VAL
75
B
O
VAL
57
1_555
155.7
B
ASN
72
B
O
ASN
54
1_555
B
CA
246
C
CA
CA
1_555
B
VAL
75
B
O
VAL
57
1_555
86.0
B
GLU
70
B
OE1
GLU
52
1_555
B
CA
246
C
CA
CA
1_555
B
GLU
77
B
OE2
GLU
59
1_555
95.7
B
ASN
72
B
O
ASN
54
1_555
B
CA
246
C
CA
CA
1_555
B
GLU
77
B
OE2
GLU
59
1_555
69.7
B
VAL
75
B
O
VAL
57
1_555
B
CA
246
C
CA
CA
1_555
B
GLU
77
B
OE2
GLU
59
1_555
93.2
B
GLU
70
B
OE1
GLU
52
1_555
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
C
ACT
1_555
98.3
B
ASN
72
B
O
ASN
54
1_555
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
C
ACT
1_555
157.3
B
VAL
75
B
O
VAL
57
1_555
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
C
ACT
1_555
104.4
B
GLU
77
B
OE2
GLU
59
1_555
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
C
ACT
1_555
89.3
B
GLU
70
B
OE1
GLU
52
1_555
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
O
ACT
1_555
107.4
B
ASN
72
B
O
ASN
54
1_555
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
O
ACT
1_555
127.0
B
VAL
75
B
O
VAL
57
1_555
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
O
ACT
1_555
96.5
B
GLU
77
B
OE2
GLU
59
1_555
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
O
ACT
1_555
57.3
B
ACT
247
D
C
ACT
1_555
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
O
ACT
1_555
33.0
B
GLU
70
B
OE1
GLU
52
1_555
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
OXT
ACT
1_555
85.9
B
ASN
72
B
O
ASN
54
1_555
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
OXT
ACT
1_555
161.2
B
VAL
75
B
O
VAL
57
1_555
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
OXT
ACT
1_555
109.5
B
GLU
77
B
OE2
GLU
59
1_555
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
OXT
ACT
1_555
118.4
B
ACT
247
D
C
ACT
1_555
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
OXT
ACT
1_555
30.6
B
ACT
247
D
O
ACT
1_555
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
OXT
ACT
1_555
63.6
B
GLU
70
B
OE1
GLU
52
1_555
B
CA
246
C
CA
CA
1_555
B
HOH
325
F
O
HOH
1_555
90.9
B
ASN
72
B
O
ASN
54
1_555
B
CA
246
C
CA
CA
1_555
B
HOH
325
F
O
HOH
1_555
103.4
B
VAL
75
B
O
VAL
57
1_555
B
CA
246
C
CA
CA
1_555
B
HOH
325
F
O
HOH
1_555
77.3
B
GLU
77
B
OE2
GLU
59
1_555
B
CA
246
C
CA
CA
1_555
B
HOH
325
F
O
HOH
1_555
168.9
B
ACT
247
D
C
ACT
1_555
B
CA
246
C
CA
CA
1_555
B
HOH
325
F
O
HOH
1_555
98.6
B
ACT
247
D
O
ACT
1_555
B
CA
246
C
CA
CA
1_555
B
HOH
325
F
O
HOH
1_555
128.8
B
ACT
247
D
OXT
ACT
1_555
B
CA
246
C
CA
CA
1_555
B
HOH
325
F
O
HOH
1_555
70.9
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
-1.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
0.0000000000
0.0000000000
0.0000000000
-1.0000000000
2_556
-x,y,-z+1
crystal symmetry operation
-2.4638472458
0.0000000000
80.6423701087
A
O
LYS
21
A
O
LYS
21
A
N
THR
119
A
N
THR
119
A
O
ASP
124
A
O
ASP
124
A
N
GLY
43
A
N
GLY
43
A
O
VAL
38
A
O
VAL
38
A
N
LEU
107
A
N
LEU
107
A
O
GLN
44
A
O
GLN
44
A
N
VAL
97
A
N
VAL
97
A
O
LYS
58
A
O
LYS
58
A
N
ASP
75
A
N
ASP
75
B
O
VAL
83
B
O
VAL
65
B
N
VAL
65
B
N
VAL
48
B
O
GLN
64
B
O
GLN
47
B
N
ASN
34
B
N
ASN
19
B
O
VAL
31
B
O
VAL
16
B
N
GLY
44
B
N
GLY
27
B
O
SER
45
B
O
SER
28
B
N
VAL
53
B
N
VAL
36
B
O
VAL
52
B
O
VAL
35
B
N
ILE
106
B
N
ILE
88
B
O
LEU
105
B
O
LEU
87
B
N
ILE
89
B
N
ILE
71
B
O
CYS
136
B
O
CYS
116
B
N
ALA
160
B
N
ALA
140
B
O
VAL
181
B
O
VAL
161
B
N
TYR
228
B
N
TYR
206
B
O
VAL
227
B
O
VAL
205
B
N
TRP
215
B
N
TRP
193
B
O
GLU
204
B
O
GLU
186
B
N
CYS
201
B
N
CYS
183
1
A
CG1
ILE
10
A
CG1
ILE
10
1
Y
1
A
CG2
ILE
10
A
CG2
ILE
10
1
Y
1
A
CD1
ILE
10
A
CD1
ILE
10
1
Y
1
A
CG
LYS
18
A
CG
LYS
18
1
Y
1
A
CD
LYS
18
A
CD
LYS
18
1
Y
1
A
CE
LYS
18
A
CE
LYS
18
1
Y
1
A
NZ
LYS
18
A
NZ
LYS
18
1
Y
1
A
CG
ASP
89
A
CG
ASP
89
1
Y
1
A
OD1
ASP
89
A
OD1
ASP
89
1
Y
1
A
OD2
ASP
89
A
OD2
ASP
89
1
Y
1
B
CG
ASN
150
B
CG
ASN
130
1
Y
1
B
OD1
ASN
150
B
OD1
ASN
130
1
Y
1
B
ND2
ASN
150
B
ND2
ASN
130
1
Y
1
A
ALA
1
A
ALA
1
1
Y
1
A
GLU
2
A
GLU
2
1
Y
1
A
SER
3
A
SER
3
1
Y
1
A
VAL
4
A
VAL
4
1
Y
1
A
GLN
5
A
GLN
5
1
Y
1
A
PRO
6
A
PRO
6
1
Y
1
A
LEU
7
A
LEU
7
1
Y
1
A
GLU
8
A
GLU
8
1
Y
1
A
LYS
9
A
LYS
9
1
Y
1
A
GLY
90
A
GLY
90
1
Y
1
A
LYS
91
A
LYS
91
1
Y
1
B
LEU
114
B
LEU
96
1
Y
1
B
ASN
115
B
ASN
97
1
Y
1
B
ALA
116
B
ALA
98
1
Y
1
B
ARG
117
B
ARG
99
1
Y
1
B
SER
146
B
SER
126
1
Y
1
B
SER
147
B
SER
127
1
Y
1
B
GLY
148
B
GLY
128
1
Y
1
A
ALA
11
-175.47
-98.45
1
A
GLU
17
-63.20
-175.53
1
A
THR
35
-94.19
38.55
1
A
MET
84
-97.61
57.11
1
A
PRO
88
-73.50
49.40
1
B
PRO
28
-59.53
-9.41
1
B
SER
37
-111.78
-106.43
1
B
ASP
49
-48.17
-7.81
1
B
HIS
71
-144.59
-66.15
1
B
GLU
80
-72.81
-117.48
1
B
GLN
81
78.14
68.02
1
B
TRP
141
-98.82
32.75
1
B
HIS
151
67.92
122.60
1
B
SER
214
-120.78
-71.54
PARAM19X.PRO
33.27
0.285
0.193
0.193
1.8
5.0
13695
10.00
94.0
1
2.0
0.27
1.8
5.0
137
2804
5
0
2662
0.005
1.20
25.08
1.27
1.80
50.0
1SLU
19067
2.0
0.046
1
3.
98.4
data reduction
DENZO
data scaling
SCALEPACK
model building
X-PLOR
3.1
refinement
X-PLOR
3.1
phasing
X-PLOR
3.1
RAT ANIONIC N143H, E151H TRYPSIN COMPLEXED TO A86H ECOTIN
1
N
N
2
N
N
3
N
N
4
N
N
5
N
N
5
N
N
A
GLU
33
A
GLU
33
HELX_P
A
THR
35
A
THR
35
5
1
3
A
GLY
102
A
GLY
102
HELX_P
A
GLY
105
A
GLY
105
5
2
4
B
ALA
56
B
ALA
39
HELX_P
B
CYS
58
B
CYS
41
5
3
3
B
GLN
165
B
GLN
145
HELX_P
B
SER
171
B
SER
151
1
4
7
B
VAL
231
B
VAL
209
HELX_P
B
ASN
233
B
ASN
211
5
5
3
B
VAL
235
B
VAL
213
HELX_P
B
ALA
243
B
ALA
221
1
6
9
disulf
2.023
A
CYS
50
A
SG
CYS
50
1_555
A
CYS
87
A
SG
CYS
87
1_555
disulf
2.027
B
CYS
22
B
SG
CYS
7
1_555
B
CYS
157
B
SG
CYS
137
1_555
disulf
2.026
B
CYS
42
B
SG
CYS
25
1_555
B
CYS
58
B
SG
CYS
41
1_555
disulf
2.029
B
CYS
128
B
SG
CYS
109
1_555
B
CYS
232
B
SG
CYS
210
1_555
disulf
2.023
B
CYS
136
B
SG
CYS
116
1_555
B
CYS
201
B
SG
CYS
183
1_555
disulf
2.039
B
CYS
168
B
SG
CYS
148
1_555
B
CYS
182
B
SG
CYS
162
1_555
disulf
2.029
B
CYS
191
B
SG
CYS
173
1_555
B
CYS
220
B
SG
CYS
197
1_555
metalc
2.383
B
GLU
70
B
OE1
GLU
52
1_555
B
CA
246
C
CA
CA
1_555
metalc
2.229
B
ASN
72
B
O
ASN
54
1_555
B
CA
246
C
CA
CA
1_555
metalc
2.179
B
VAL
75
B
O
VAL
57
1_555
B
CA
246
C
CA
CA
1_555
metalc
2.996
B
GLU
77
B
OE2
GLU
59
1_555
B
CA
246
C
CA
CA
1_555
metalc
2.236
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
C
ACT
1_555
metalc
1.600
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
O
ACT
1_555
metalc
2.359
B
CA
246
C
CA
CA
1_555
B
ACT
247
D
OXT
ACT
1_555
metalc
1.734
B
CA
246
C
CA
CA
1_555
B
HOH
325
F
O
HOH
1_555
COMPLEX (SERINE PROTEASE/INHIBITOR)
SERINE PROTEASE, INHIBITOR, COMPLEX, METAL BINDING SITES, PROTEIN ENGINEERING, PROTEASE-SUBSTRATE INTERACTIONS, METALLOPROTEINS, COMPLEX (SERINE PROTEASE-INHIBITOR) COMPLEX
ECOT_ECOLI
UNP
1
1
P23827
MKTILPAVLFAAFATTSAWAAESVQPLEKIAPYPQAEKGMKRQVIQLTPQEDESTLKVELLIGQTLEVDCNLHRLGGKLE
NKTLEGWGYDYYVFDKVSSPVSTMMACPDGKKEKKFVTAYLGDAGMLRYNSKLPIVVYTPDNVDVKYRVWKAEEKIDNAV
VR
TRY2_RAT
UNP
2
1
P00763
MRALLFLALVGAAVAFPVDDDDKIVGGYTCQENSVPYQVSLNSGYHFCGGSLINDQWVVSAAHCYKSRIQVRLGEHNINV
LEGNEQFVNAAKIIKHPNFDRKTLNNDIMLIKLSSPVKLNARVATVALPSSCAPAGTQCLISGWGNTLSSGVNEPDLLQC
LDAPLLPQADCEASYPGKITDNMVCVGFLEGGKDSCQGDSGGPVVCNGELQGIVSWGYGCALPDNPGVYTKVCNYVDWIQ
DTIAAN
21
162
1SLU
1
142
P23827
A
1
1
142
24
246
1SLU
16
245
P00763
B
2
1
223
1
ALA
engineered mutation
HIS
86
1SLU
A
P23827
UNP
106
86
2
ASN
engineered mutation
HIS
143
1SLU
B
P00763
UNP
146
123
2
GLU
engineered mutation
HIS
151
1SLU
B
P00763
UNP
154
131
2
3
2
2
7
2
4
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
A
MET
20
A
MET
20
A
ILE
25
A
ILE
25
A
ILE
115
A
ILE
115
A
PRO
120
A
PRO
120
A
ASP
124
A
ASP
124
A
LYS
131
A
LYS
131
A
LEU
36
A
LEU
36
A
GLY
43
A
GLY
43
A
MET
106
A
MET
106
A
ARG
108
A
ARG
108
A
GLY
43
A
GLY
43
A
VAL
48
A
VAL
48
A
GLU
93
A
GLU
93
A
THR
98
A
THR
98
A
LYS
58
A
LYS
58
A
LEU
64
A
LEU
64
A
TYR
69
A
TYR
69
A
ASP
75
A
ASP
75
B
PHE
82
B
PHE
64
B
ASN
84
B
ASN
66
B
GLN
64
B
GLN
47
B
ARG
66
B
ARG
49
B
GLN
30
B
GLN
15
B
ASN
34
B
ASN
19
B
HIS
40
B
HIS
23
B
ASN
48
B
ASN
31
B
TRP
51
B
TRP
34
B
SER
54
B
SER
37
B
MET
104
B
MET
86
B
LEU
108
B
LEU
90
B
ALA
85
B
ALA
67
B
LYS
90
B
LYS
72
B
GLN
135
B
GLN
115
B
GLY
140
B
GLY
120
B
GLN
156
B
GLN
136
B
PRO
161
B
PRO
141
B
MET
180
B
MET
160
B
VAL
183
B
VAL
163
B
GLY
226
B
GLY
204
B
LYS
230
B
LYS
208
B
GLU
204
B
GLU
186
B
TRP
215
B
TRP
193
B
PRO
198
B
PRO
180
B
CYS
201
B
CYS
183
BINDING SITE FOR RESIDUE CA B 246
B
CA
246
Software
6
BINDING SITE FOR RESIDUE ACT B 247
B
ACT
247
Software
10
B
GLU
70
B
GLU
52
6
1_555
B
ASN
72
B
ASN
54
6
1_555
B
VAL
75
B
VAL
57
6
1_555
B
GLU
77
B
GLU
59
6
1_555
B
ACT
247
D
ACT
6
1_555
B
HOH
325
F
HOH
6
1_555
B
GLU
70
B
GLU
52
10
1_555
B
ASN
72
B
ASN
54
10
1_555
B
VAL
75
B
VAL
57
10
1_555
B
LEU
76
B
LEU
58
10
1_555
B
GLU
77
B
GLU
59
10
1_555
B
GLY
78
B
GLY
60
10
1_555
B
ASN
79
B
ASN
61
10
1_555
B
CA
246
C
CA
10
1_555
B
HOH
325
F
HOH
10
1_555
B
HOH
337
F
HOH
10
1_555
5
C 1 2 1