0.013004
0.000000
0.000000
0.000000
0.018727
0.000000
0.000000
0.000000
0.021459
0.00000
0.00000
0.00000
Huang, Q.
Wang, Z.
Li, Y.
Liu, S.
Tang, Y.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
4
90.00
90.00
90.00
76.900
53.400
46.600
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
NE
Biochim.Biophys.Acta
BBACAQ
0113
0006-3002
1209
77
82
10.1016/0167-4838(94)90139-2
7947985
Refined 1.8 A resolution crystal structure of the porcine epsilon-trypsin.
1994
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
1
x-ray
1
1.0
4494.033
PORCINE E-TRYPSIN
3.4.21.4
1
man
polymer
8827.978
PORCINE E-TRYPSIN
3.4.21.4
1
man
polymer
10205.522
PORCINE E-TRYPSIN
3.4.21.4
1
man
polymer
40.078
CALCIUM ION
1
syn
non-polymer
18.015
water
72
nat
water
no
no
IVGGYTCAANSIPYQVSLNSGSHFCGGSLINSQWVVSAAHCYK
IVGGYTCAANSIPYQVSLNSGSHFCGGSLINSQWVVSAAHCYK
A
polypeptide(L)
no
no
SRIQVRLGEHNIDVLEGNEQFINAAKIITHPNFNGNTLDNDIMLIKLSSPATLNSRVATVSLPRSCAAAGTECLISGWGN
TK
SRIQVRLGEHNIDVLEGNEQFINAAKIITHPNFNGNTLDNDIMLIKLSSPATLNSRVATVSLPRSCAAAGTECLISGWGN
TK
B
polypeptide(L)
no
no
SSGSSYPSLLQCLKAPVLSNSSCKSSYPGQITGNMICVGFLQGGKDSCQGDSGGPVVCNGQLQGIVSWGYGCAQKNKPGV
YTKVCNYVNWIQQTIAAN
SSGSSYPSLLQCLKAPVLSNSSCKSSYPGQITGNMICVGFLQGGKDSCQGDSGGPVVCNGQLQGIVSWGYGCAQKNKPGV
YTKVCNYVNWIQQTIAAN
C
polypeptide(L)
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
pig
Sus
sample
9823
Sus scrofa
pig
Sus
sample
9823
Sus scrofa
pig
Sus
sample
9823
Sus scrofa
2.03
39.49
repository
Initial release
Version format compliance
Version format compliance
1
0
1995-02-07
1
1
2008-03-24
1
2
2011-07-13
Y
1994-06-07
REL
REL
CA
CALCIUM ION
HOH
water
CA
73
4
CA
CA
146
B
HOH
7
5
HOH
HOH
61
A
HOH
8
5
HOH
HOH
62
A
HOH
18
5
HOH
HOH
63
A
HOH
23
5
HOH
HOH
64
A
HOH
27
5
HOH
HOH
65
A
HOH
31
5
HOH
HOH
66
A
HOH
32
5
HOH
HOH
67
A
HOH
44
5
HOH
HOH
68
A
HOH
49
5
HOH
HOH
69
A
HOH
57
5
HOH
HOH
70
A
HOH
72
5
HOH
HOH
71
A
HOH
2
5
HOH
HOH
147
B
HOH
3
5
HOH
HOH
148
B
HOH
4
5
HOH
HOH
149
B
HOH
9
5
HOH
HOH
150
B
HOH
11
5
HOH
HOH
151
B
HOH
12
5
HOH
HOH
152
B
HOH
14
5
HOH
HOH
153
B
HOH
16
5
HOH
HOH
154
B
HOH
17
5
HOH
HOH
155
B
HOH
21
5
HOH
HOH
156
B
HOH
33
5
HOH
HOH
157
B
HOH
34
5
HOH
HOH
158
B
HOH
37
5
HOH
HOH
159
B
HOH
42
5
HOH
HOH
160
B
HOH
43
5
HOH
HOH
161
B
HOH
48
5
HOH
HOH
162
B
HOH
51
5
HOH
HOH
163
B
HOH
53
5
HOH
HOH
164
B
HOH
55
5
HOH
HOH
165
B
HOH
56
5
HOH
HOH
166
B
HOH
59
5
HOH
HOH
167
B
HOH
64
5
HOH
HOH
168
B
HOH
65
5
HOH
HOH
169
B
HOH
66
5
HOH
HOH
170
B
HOH
67
5
HOH
HOH
171
B
HOH
68
5
HOH
HOH
172
B
HOH
70
5
HOH
HOH
173
B
HOH
1
5
HOH
HOH
1
C
HOH
5
5
HOH
HOH
5
C
HOH
6
5
HOH
HOH
6
C
HOH
10
5
HOH
HOH
10
C
HOH
13
5
HOH
HOH
13
C
HOH
15
5
HOH
HOH
15
C
HOH
19
5
HOH
HOH
19
C
HOH
20
5
HOH
HOH
20
C
HOH
22
5
HOH
HOH
22
C
HOH
24
5
HOH
HOH
24
C
HOH
25
5
HOH
HOH
25
C
HOH
26
5
HOH
HOH
26
C
HOH
28
5
HOH
HOH
28
C
HOH
29
5
HOH
HOH
29
C
HOH
30
5
HOH
HOH
30
C
HOH
35
5
HOH
HOH
35
C
HOH
36
5
HOH
HOH
36
C
HOH
38
5
HOH
HOH
38
C
HOH
39
5
HOH
HOH
39
C
HOH
40
5
HOH
HOH
40
C
HOH
41
5
HOH
HOH
41
C
HOH
45
5
HOH
HOH
45
C
HOH
46
5
HOH
HOH
46
C
HOH
47
5
HOH
HOH
47
C
HOH
50
5
HOH
HOH
50
C
HOH
52
5
HOH
HOH
52
C
HOH
54
5
HOH
HOH
54
C
HOH
58
5
HOH
HOH
58
C
HOH
60
5
HOH
HOH
60
C
HOH
61
5
HOH
HOH
61
C
HOH
62
5
HOH
HOH
62
C
HOH
63
5
HOH
HOH
63
C
HOH
69
5
HOH
HOH
69
C
HOH
71
5
HOH
HOH
71
C
ILE
16
n
1
ILE
16
A
VAL
17
n
2
VAL
17
A
GLY
18
n
3
GLY
18
A
GLY
19
n
4
GLY
19
A
TYR
20
n
5
TYR
20
A
THR
21
n
6
THR
21
A
CYS
22
n
7
CYS
22
A
ALA
23
n
8
ALA
23
A
ALA
24
n
9
ALA
24
A
ASN
25
n
10
ASN
25
A
SER
26
n
11
SER
26
A
ILE
27
n
12
ILE
27
A
PRO
28
n
13
PRO
28
A
TYR
29
n
14
TYR
29
A
GLN
30
n
15
GLN
30
A
VAL
31
n
16
VAL
31
A
SER
32
n
17
SER
32
A
LEU
33
n
18
LEU
33
A
ASN
34
n
19
ASN
34
A
SER
37
n
20
SER
37
A
GLY
38
n
21
GLY
38
A
SER
39
n
22
SER
39
A
HIS
40
n
23
HIS
40
A
PHE
41
n
24
PHE
41
A
CYS
42
n
25
CYS
42
A
GLY
43
n
26
GLY
43
A
GLY
44
n
27
GLY
44
A
SER
45
n
28
SER
45
A
LEU
46
n
29
LEU
46
A
ILE
47
n
30
ILE
47
A
ASN
48
n
31
ASN
48
A
SER
49
n
32
SER
49
A
GLN
50
n
33
GLN
50
A
TRP
51
n
34
TRP
51
A
VAL
52
n
35
VAL
52
A
VAL
53
n
36
VAL
53
A
SER
54
n
37
SER
54
A
ALA
55
n
38
ALA
55
A
ALA
56
n
39
ALA
56
A
HIS
57
n
40
HIS
57
A
CYS
58
n
41
CYS
58
A
TYR
59
n
42
TYR
59
A
LYS
60
n
43
LYS
60
A
SER
61
n
1
SER
61
B
ARG
62
n
2
ARG
62
B
ILE
63
n
3
ILE
63
B
GLN
64
n
4
GLN
64
B
VAL
65
n
5
VAL
65
B
ARG
66
n
6
ARG
66
B
LEU
67
n
7
LEU
67
B
GLY
69
n
8
GLY
69
B
GLU
70
n
9
GLU
70
B
HIS
71
n
10
HIS
71
B
ASN
72
n
11
ASN
72
B
ILE
73
n
12
ILE
73
B
ASP
74
n
13
ASP
74
B
VAL
75
n
14
VAL
75
B
LEU
76
n
15
LEU
76
B
GLU
77
n
16
GLU
77
B
GLY
78
n
17
GLY
78
B
ASN
79
n
18
ASN
79
B
GLU
80
n
19
GLU
80
B
GLN
81
n
20
GLN
81
B
PHE
82
n
21
PHE
82
B
ILE
83
n
22
ILE
83
B
ASN
84
n
23
ASN
84
B
ALA
85
n
24
ALA
85
B
ALA
86
n
25
ALA
86
B
LYS
87
n
26
LYS
87
B
ILE
88
n
27
ILE
88
B
ILE
89
n
28
ILE
89
B
THR
90
n
29
THR
90
B
HIS
91
n
30
HIS
91
B
PRO
92
n
31
PRO
92
B
ASN
93
n
32
ASN
93
B
PHE
94
n
33
PHE
94
B
ASN
95
n
34
ASN
95
B
GLY
96
n
35
GLY
96
B
ASN
97
n
36
ASN
97
B
THR
98
n
37
THR
98
B
LEU
99
n
38
LEU
99
B
ASP
100
n
39
ASP
100
B
ASN
101
n
40
ASN
101
B
ASP
102
n
41
ASP
102
B
ILE
103
n
42
ILE
103
B
MET
104
n
43
MET
104
B
LEU
105
n
44
LEU
105
B
ILE
106
n
45
ILE
106
B
LYS
107
n
46
LYS
107
B
LEU
108
n
47
LEU
108
B
SER
109
n
48
SER
109
B
SER
110
n
49
SER
110
B
PRO
111
n
50
PRO
111
B
ALA
112
n
51
ALA
112
B
THR
113
n
52
THR
113
B
LEU
114
n
53
LEU
114
B
ASN
115
n
54
ASN
115
B
SER
116
n
55
SER
116
B
ARG
117
n
56
ARG
117
B
VAL
118
n
57
VAL
118
B
ALA
119
n
58
ALA
119
B
THR
120
n
59
THR
120
B
VAL
121
n
60
VAL
121
B
SER
122
n
61
SER
122
B
LEU
123
n
62
LEU
123
B
PRO
124
n
63
PRO
124
B
ARG
125
n
64
ARG
125
B
SER
127
n
65
SER
127
B
CYS
128
n
66
CYS
128
B
ALA
129
n
67
ALA
129
B
ALA
130
n
68
ALA
130
B
ALA
132
n
69
ALA
132
B
GLY
133
n
70
GLY
133
B
THR
134
n
71
THR
134
B
GLU
135
n
72
GLU
135
B
CYS
136
n
73
CYS
136
B
LEU
137
n
74
LEU
137
B
ILE
138
n
75
ILE
138
B
SER
139
n
76
SER
139
B
GLY
140
n
77
GLY
140
B
TRP
141
n
78
TRP
141
B
GLY
142
n
79
GLY
142
B
ASN
143
n
80
ASN
143
B
THR
144
n
81
THR
144
B
LYS
145
n
82
LYS
145
B
SER
146
n
1
SER
146
C
SER
147
n
2
SER
147
C
GLY
148
n
3
GLY
148
C
SER
149
n
4
SER
149
C
SER
150
n
5
SER
150
C
TYR
151
n
6
TYR
151
C
PRO
152
n
7
PRO
152
C
SER
153
n
8
SER
153
C
LEU
154
n
9
LEU
154
C
LEU
155
n
10
LEU
155
C
GLN
156
n
11
GLN
156
C
CYS
157
n
12
CYS
157
C
LEU
158
n
13
LEU
158
C
LYS
159
n
14
LYS
159
C
ALA
160
n
15
ALA
160
C
PRO
161
n
16
PRO
161
C
VAL
162
n
17
VAL
162
C
LEU
163
n
18
LEU
163
C
SER
164
n
19
SER
164
C
ASN
165
n
20
ASN
165
C
SER
166
n
21
SER
166
C
SER
167
n
22
SER
167
C
CYS
168
n
23
CYS
168
C
LYS
169
n
24
LYS
169
C
SER
170
n
25
SER
170
C
SER
171
n
26
SER
171
C
TYR
172
n
27
TYR
172
C
PRO
173
n
28
PRO
173
C
GLY
174
n
29
GLY
174
C
GLN
175
n
30
GLN
175
C
ILE
176
n
31
ILE
176
C
THR
177
n
32
THR
177
C
GLY
178
n
33
GLY
178
C
ASN
179
n
34
ASN
179
C
MET
180
n
35
MET
180
C
ILE
181
n
36
ILE
181
C
CYS
182
n
37
CYS
182
C
VAL
183
n
38
VAL
183
C
GLY
184
n
39
A
GLY
184
C
PHE
184
n
40
PHE
184
C
LEU
185
n
41
LEU
185
C
GLN
186
n
42
GLN
186
C
GLY
187
n
43
GLY
187
C
GLY
188
n
44
A
GLY
188
C
LYS
188
n
45
LYS
188
C
ASP
189
n
46
ASP
189
C
SER
190
n
47
SER
190
C
CYS
191
n
48
CYS
191
C
GLN
192
n
49
GLN
192
C
GLY
193
n
50
GLY
193
C
ASP
194
n
51
ASP
194
C
SER
195
n
52
SER
195
C
GLY
196
n
53
GLY
196
C
GLY
197
n
54
GLY
197
C
PRO
198
n
55
PRO
198
C
VAL
199
n
56
VAL
199
C
VAL
200
n
57
VAL
200
C
CYS
201
n
58
CYS
201
C
ASN
202
n
59
ASN
202
C
GLY
203
n
60
GLY
203
C
GLN
204
n
61
GLN
204
C
LEU
209
n
62
LEU
209
C
GLN
210
n
63
GLN
210
C
GLY
211
n
64
GLY
211
C
ILE
212
n
65
ILE
212
C
VAL
213
n
66
VAL
213
C
SER
214
n
67
SER
214
C
TRP
215
n
68
TRP
215
C
GLY
216
n
69
GLY
216
C
TYR
217
n
70
TYR
217
C
GLY
219
n
71
GLY
219
C
CYS
220
n
72
CYS
220
C
ALA
221
n
73
A
ALA
221
C
GLN
221
n
74
GLN
221
C
LYS
222
n
75
LYS
222
C
ASN
223
n
76
ASN
223
C
LYS
224
n
77
LYS
224
C
PRO
225
n
78
PRO
225
C
GLY
226
n
79
GLY
226
C
VAL
227
n
80
VAL
227
C
TYR
228
n
81
TYR
228
C
THR
229
n
82
THR
229
C
LYS
230
n
83
LYS
230
C
VAL
231
n
84
VAL
231
C
CYS
232
n
85
CYS
232
C
ASN
233
n
86
ASN
233
C
TYR
234
n
87
TYR
234
C
VAL
235
n
88
VAL
235
C
ASN
236
n
89
ASN
236
C
TRP
237
n
90
TRP
237
C
ILE
238
n
91
ILE
238
C
GLN
239
n
92
GLN
239
C
GLN
240
n
93
GLN
240
C
THR
241
n
94
THR
241
C
ILE
242
n
95
ILE
242
C
ALA
243
n
96
ALA
243
C
ALA
244
n
97
ALA
244
C
ASN
245
n
98
ASN
245
C
author_and_software_defined_assembly
PISA
3
trimeric
9750
-81
8750
B
VAL
75
B
O
VAL
14
1_555
B
CA
146
D
CA
CA
1_555
B
ASN
72
B
O
ASN
11
1_555
81.7
B
VAL
75
B
O
VAL
14
1_555
B
CA
146
D
CA
CA
1_555
B
GLU
77
B
OE2
GLU
16
1_555
112.6
B
ASN
72
B
O
ASN
11
1_555
B
CA
146
D
CA
CA
1_555
B
GLU
77
B
OE2
GLU
16
1_555
89.3
B
VAL
75
B
O
VAL
14
1_555
B
CA
146
D
CA
CA
1_555
B
GLU
80
B
OE2
GLU
19
1_555
90.4
B
ASN
72
B
O
ASN
11
1_555
B
CA
146
D
CA
CA
1_555
B
GLU
80
B
OE2
GLU
19
1_555
171.3
B
GLU
77
B
OE2
GLU
16
1_555
B
CA
146
D
CA
CA
1_555
B
GLU
80
B
OE2
GLU
19
1_555
90.5
B
VAL
75
B
O
VAL
14
1_555
B
CA
146
D
CA
CA
1_555
B
HOH
157
F
O
HOH
1_555
79.6
B
ASN
72
B
O
ASN
11
1_555
B
CA
146
D
CA
CA
1_555
B
HOH
157
F
O
HOH
1_555
90.1
B
GLU
77
B
OE2
GLU
16
1_555
B
CA
146
D
CA
CA
1_555
B
HOH
157
F
O
HOH
1_555
167.6
B
GLU
80
B
OE2
GLU
19
1_555
B
CA
146
D
CA
CA
1_555
B
HOH
157
F
O
HOH
1_555
91.9
B
VAL
75
B
O
VAL
14
1_555
B
CA
146
D
CA
CA
1_555
B
GLU
70
B
OE1
GLU
9
1_555
153.8
B
ASN
72
B
O
ASN
11
1_555
B
CA
146
D
CA
CA
1_555
B
GLU
70
B
OE1
GLU
9
1_555
86.2
B
GLU
77
B
OE2
GLU
16
1_555
B
CA
146
D
CA
CA
1_555
B
GLU
70
B
OE1
GLU
9
1_555
90.3
B
GLU
80
B
OE2
GLU
19
1_555
B
CA
146
D
CA
CA
1_555
B
GLU
70
B
OE1
GLU
9
1_555
102.4
B
HOH
157
F
O
HOH
1_555
B
CA
146
D
CA
CA
1_555
B
GLU
70
B
OE1
GLU
9
1_555
77.3
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
TYR
20
A
O
TYR
5
C
N
CYS
157
C
N
CYS
12
C
O
ALA
160
C
O
ALA
15
B
N
CYS
136
B
N
CYS
73
B
N
SER
139
B
N
SER
76
C
O
PRO
198
C
O
PRO
55
C
N
CYS
201
C
N
CYS
58
C
O
GLN
204
C
O
GLN
61
C
O
TRP
215
C
O
TRP
68
C
N
VAL
227
C
N
VAL
80
C
N
TYR
228
C
N
TYR
81
C
O
ILE
181
C
O
ILE
36
A
O
LEU
33
A
O
LEU
18
A
N
PHE
41
A
N
PHE
24
A
N
ILE
47
A
N
ILE
30
A
O
TRP
51
A
O
TRP
34
A
N
SER
54
A
N
SER
37
B
O
MET
104
B
O
MET
43
B
O
LYS
107
B
O
LYS
46
B
N
ALA
86
B
N
ALA
25
B
O
ILE
83
B
O
ILE
22
B
N
VAL
65
B
N
VAL
5
B
N
ARG
66
B
N
ARG
6
A
O
SER
32
A
O
SER
17
1
A
O
SER
37
A
O
SER
20
0
Y
1
A
OG
SER
37
A
OG
SER
20
0
Y
1
A
CB
ASN
48
A
CB
ASN
31
0
Y
1
A
ND2
ASN
48
A
ND2
ASN
31
0
Y
1
A
CB
GLN
50
A
CB
GLN
33
0
Y
1
B
N
SER
61
B
N
SER
1
0
Y
1
B
OG
SER
61
B
OG
SER
1
0
Y
1
B
CB
ARG
62
B
CB
ARG
2
0
Y
1
B
CG
ARG
62
B
CG
ARG
2
0
Y
1
B
CD
ARG
62
B
CD
ARG
2
0
Y
1
B
NE
ARG
62
B
NE
ARG
2
0
Y
1
B
CZ
ARG
62
B
CZ
ARG
2
0
Y
1
B
NH1
ARG
62
B
NH1
ARG
2
0
Y
1
B
NH2
ARG
62
B
NH2
ARG
2
0
Y
1
B
CD1
LEU
76
B
CD1
LEU
15
0
Y
1
B
CB
GLU
77
B
CB
GLU
16
0
Y
1
B
N
GLY
78
B
N
GLY
17
0
Y
1
B
CA
GLY
78
B
CA
GLY
17
0
Y
1
B
CB
ASN
79
B
CB
ASN
18
0
Y
1
B
CG
ASN
79
B
CG
ASN
18
0
Y
1
B
OD1
ASN
79
B
OD1
ASN
18
0
Y
1
B
ND2
ASN
79
B
ND2
ASN
18
0
Y
1
B
CG
PRO
92
B
CG
PRO
31
0
Y
1
B
CA
ASN
97
B
CA
ASN
36
0
Y
1
B
O
ASN
97
B
O
ASN
36
0
Y
1
B
CB
ASN
97
B
CB
ASN
36
0
Y
1
B
CG
ASN
97
B
CG
ASN
36
0
Y
1
B
OD1
ASN
97
B
OD1
ASN
36
0
Y
1
B
ND2
ASN
97
B
ND2
ASN
36
0
Y
1
B
N
THR
98
B
N
THR
37
0
Y
1
B
CG2
THR
98
B
CG2
THR
37
0
Y
1
B
OG
SER
109
B
OG
SER
48
0
Y
1
B
N
SER
116
B
N
SER
55
0
Y
1
B
CA
SER
116
B
CA
SER
55
0
Y
1
B
CB
SER
116
B
CB
SER
55
0
Y
1
B
OG
SER
116
B
OG
SER
55
0
Y
1
B
CB
ARG
117
B
CB
ARG
56
0
Y
1
B
CG
ARG
117
B
CG
ARG
56
0
Y
1
B
CD
ARG
117
B
CD
ARG
56
0
Y
1
B
NE
ARG
117
B
NE
ARG
56
0
Y
1
B
CZ
ARG
117
B
CZ
ARG
56
0
Y
1
B
NH1
ARG
117
B
NH1
ARG
56
0
Y
1
B
NH2
ARG
117
B
NH2
ARG
56
0
Y
1
B
OG
SER
122
B
OG
SER
61
0
Y
1
B
CG
ARG
125
B
CG
ARG
64
0
Y
1
B
CZ
ARG
125
B
CZ
ARG
64
0
Y
1
B
NH1
ARG
125
B
NH1
ARG
64
0
Y
1
B
NH2
ARG
125
B
NH2
ARG
64
0
Y
1
B
CG
GLU
135
B
CG
GLU
72
0
Y
1
B
CD
GLU
135
B
CD
GLU
72
0
Y
1
B
OE1
GLU
135
B
OE1
GLU
72
0
Y
1
B
O
LYS
145
B
O
LYS
82
0
Y
1
B
CD
LYS
145
B
CD
LYS
82
0
Y
1
B
CE
LYS
145
B
CE
LYS
82
0
Y
1
B
NZ
LYS
145
B
NZ
LYS
82
0
Y
1
B
OXT
LYS
145
B
OXT
LYS
82
0
Y
1
C
N
SER
146
C
N
SER
1
0
Y
1
C
CA
SER
146
C
CA
SER
1
0
Y
1
C
C
SER
146
C
C
SER
1
0
Y
1
C
O
SER
146
C
O
SER
1
0
Y
1
C
CB
SER
146
C
CB
SER
1
0
Y
1
C
OG
SER
146
C
OG
SER
1
0
Y
1
C
N
SER
147
C
N
SER
2
0
Y
1
C
CA
SER
147
C
CA
SER
2
0
Y
1
C
C
SER
147
C
C
SER
2
0
Y
1
C
O
SER
147
C
O
SER
2
0
Y
1
C
CB
SER
147
C
CB
SER
2
0
Y
1
C
OG
SER
147
C
OG
SER
2
0
Y
1
C
N
GLY
148
C
N
GLY
3
0
Y
1
C
CA
GLY
148
C
CA
GLY
3
0
Y
1
C
C
GLY
148
C
C
GLY
3
0
Y
1
C
O
GLY
148
C
O
GLY
3
0
Y
1
C
N
SER
149
C
N
SER
4
0
Y
1
C
CA
SER
149
C
CA
SER
4
0
Y
1
C
O
SER
149
C
O
SER
4
0
Y
1
C
CB
SER
149
C
CB
SER
4
0
Y
1
C
OG
SER
149
C
OG
SER
4
0
Y
1
C
CA
SER
150
C
CA
SER
5
0
Y
1
C
CB
SER
150
C
CB
SER
5
0
Y
1
C
CD1
TYR
151
C
CD1
TYR
6
0
Y
1
C
CE1
TYR
151
C
CE1
TYR
6
0
Y
1
C
OH
TYR
151
C
OH
TYR
6
0
Y
1
C
CD
LYS
159
C
CD
LYS
14
0
Y
1
C
CE
LYS
159
C
CE
LYS
14
0
Y
1
C
NZ
LYS
159
C
NZ
LYS
14
0
Y
1
C
N
ASN
165
C
N
ASN
20
0
Y
1
C
CA
ASN
165
C
CA
ASN
20
0
Y
1
C
O
ASN
165
C
O
ASN
20
0
Y
1
C
CG
ASN
165
C
CG
ASN
20
0
Y
1
C
OD1
ASN
165
C
OD1
ASN
20
0
Y
1
C
ND2
ASN
165
C
ND2
ASN
20
0
Y
1
C
CA
SER
166
C
CA
SER
21
0
Y
1
C
CB
SER
166
C
CB
SER
21
0
Y
1
C
CG
GLN
186
C
CG
GLN
42
0
Y
1
C
CD
GLN
186
C
CD
GLN
42
0
Y
1
C
OE1
GLN
186
C
OE1
GLN
42
0
Y
1
C
NE2
GLN
186
C
NE2
GLN
42
0
Y
1
C
CG
GLN
192
C
CG
GLN
49
0
Y
1
C
CG
TYR
217
C
CG
TYR
70
0
Y
1
C
CD1
TYR
217
C
CD1
TYR
70
0
Y
1
C
CD2
TYR
217
C
CD2
TYR
70
0
Y
1
C
CE1
TYR
217
C
CE1
TYR
70
0
Y
1
C
CE2
TYR
217
C
CE2
TYR
70
0
Y
1
C
CZ
TYR
217
C
CZ
TYR
70
0
Y
1
C
OH
TYR
217
C
OH
TYR
70
0
Y
1
C
CD
GLN
221
C
CD
GLN
74
0
Y
1
C
OE1
GLN
221
C
OE1
GLN
74
0
Y
1
C
CG
LYS
222
C
CG
LYS
75
0
Y
1
C
CD
LYS
222
C
CD
LYS
75
0
Y
1
C
CE
LYS
222
C
CE
LYS
75
0
Y
1
C
NZ
LYS
222
C
NZ
LYS
75
0
Y
1
C
CG
GLN
239
C
CG
GLN
92
0
Y
1
C
CD
GLN
239
C
CD
GLN
92
0
Y
1
C
OE1
GLN
239
C
OE1
GLN
92
0
Y
1
C
NE2
GLN
239
C
NE2
GLN
92
0
Y
1
C
C
ALA
244
C
C
ALA
97
0
Y
1
C
N
ASN
245
C
N
ASN
98
0
Y
1
C
CB
ASN
245
C
CB
ASN
98
0
Y
1
C
C
H1
O
HOH
HOH
5
20
1.50
1_555
4_465
1
C
C
HE21
OE1
GLN
GLN
221
239
1.53
1_555
3_645
1
C
C
NE2
OE1
GLN
GLN
221
239
2.10
1_555
3_645
1
A
SER
54
-144.17
-157.23
1
B
HIS
71
-135.01
-57.39
1
B
ASN
115
-169.00
-160.42
0.184
0.184
1.8
7.0
11691
1
0.0
1.8
7.0
216
2252
1
0
2035
0.010
1.26
27.50
model building
X-PLOR
refinement
X-PLOR
phasing
X-PLOR
PORCINE E-TRYPSIN (E.C.3.4.21.4)
REFINED 1.8 ANGSTROMS RESOLUTION CRYSTAL STRUCTURE OF PORCINE EPSILON-TRYPSIN
1
N
N
2
N
N
3
N
N
4
N
N
5
N
N
5
N
N
5
N
N
C
SER
164
C
SER
19
HELX_P
C
PRO
173
C
PRO
28
1
H1
10
C
TYR
234
C
TYR
87
HELX_P
C
ASN
245
C
ASN
98
1
H2
12
disulf
2.046
A
CYS
22
A
SG
CYS
7
1_555
C
CYS
157
C
SG
CYS
12
1_555
disulf
2.033
A
CYS
42
A
SG
CYS
25
1_555
A
CYS
58
A
SG
CYS
41
1_555
disulf
2.036
B
CYS
128
B
SG
CYS
66
1_555
C
CYS
232
C
SG
CYS
85
1_555
disulf
2.035
B
CYS
136
B
SG
CYS
73
1_555
C
CYS
201
C
SG
CYS
58
1_555
disulf
2.043
C
CYS
168
C
SG
CYS
23
1_555
C
CYS
182
C
SG
CYS
37
1_555
disulf
2.035
C
CYS
191
C
SG
CYS
48
1_555
C
CYS
220
C
SG
CYS
72
1_555
metalc
2.307
B
CA
146
D
CA
CA
1_555
B
VAL
75
B
O
VAL
14
1_555
metalc
2.534
B
CA
146
D
CA
CA
1_555
B
ASN
72
B
O
ASN
11
1_555
metalc
2.281
B
CA
146
D
CA
CA
1_555
B
GLU
77
B
OE2
GLU
16
1_555
metalc
2.252
B
CA
146
D
CA
CA
1_555
B
GLU
80
B
OE2
GLU
19
1_555
metalc
2.613
B
CA
146
D
CA
CA
1_555
B
HOH
157
F
O
HOH
1_555
metalc
2.263
B
CA
146
D
CA
CA
1_555
B
GLU
70
B
OE1
GLU
9
1_555
HYDROLASE (SERINE PROTEASE)
HYDROLASE (SERINE PROTEASE)
TRYP_PIG
UNP
1
9
P00761
TRYP_PIG
UNP
2
52
P00761
TRYP_PIG
UNP
3
134
P00761
9
51
1EPT
16
60
P00761
A
1
1
43
52
133
1EPT
61
145
P00761
B
2
1
82
134
231
1EPT
146
245
P00761
C
3
1
98
3
ASP
CONFLICT
ASN
165
1EPT
C
P00761
UNP
153
20
3
GLU
CONFLICT
GLN
186
1EPT
C
P00761
UNP
175
42
7
7
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
A
TYR
20
A
TYR
5
A
THR
21
A
THR
6
C
GLN
156
C
GLN
11
C
PRO
161
C
PRO
16
B
GLU
135
B
GLU
72
B
GLY
140
B
GLY
77
C
PRO
198
C
PRO
55
C
CYS
201
C
CYS
58
C
GLN
204
C
GLN
61
C
TRP
215
C
TRP
68
C
GLY
226
C
GLY
79
C
LYS
230
C
LYS
83
C
MET
180
C
MET
35
C
VAL
183
C
VAL
38
A
GLN
30
A
GLN
15
A
ASN
34
A
ASN
19
A
HIS
40
A
HIS
23
A
ASN
48
A
ASN
31
A
TRP
51
A
TRP
34
A
SER
54
A
SER
37
B
MET
104
B
MET
43
B
LEU
108
B
LEU
47
B
GLN
81
B
GLN
20
B
THR
90
B
THR
29
B
GLN
64
B
GLN
4
B
LEU
67
B
LEU
7
A
GLN
30
A
GLN
15
A
ASN
34
A
ASN
19
BINDING SITE FOR RESIDUE CA B 146
Software
6
B
GLU
70
B
GLU
9
6
1_555
B
ASN
72
B
ASN
11
6
1_555
B
VAL
75
B
VAL
14
6
1_555
B
GLU
77
B
GLU
16
6
1_555
B
GLU
80
B
GLU
19
6
1_555
B
HOH
157
F
HOH
6
1_555
19
P 21 21 21