.013245
0.000000
0.000000
0.000000
.011848
0.000000
0.000000
0.000000
.008137
0.00000
0.00000
0.00000
SEE REMARK 4.
Huber, R.
Deisenhofer, J.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
8
90.00
90.00
90.00
75.500
84.400
122.900
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
DK
Acta Crystallogr.,Sect.B
ASBSDK
0622
0108-7681
39
480
-1
The Geometry of the Reactive Site and of the Peptide Groups in Trypsin, Trypsinogen and its Complexes with Inhibitors
1983
US
Miami Winter Symp.
MIWSAE
0926
0097-0808
11
43
Structural Studies on the Pancreatic Trypsin Inhibitor-Trypsin Complex and its Free Components. Structure and Function Relationships in Serine Protease Inhibition and Catalysis
1976
GW
Biophys.Struct.Mech.
BSMHBH
0414
0340-1057
1
189
The Structure of the Complex Formed by Bovine Trypsin and Bovine Pancreatic Trypsin Inhibitor. III. Structure of the Anhydro-Trypsin-Inhibitor Complex
1975
NE
FEBS Lett.
FEBLAL
0165
0014-5793
56
139
The Single Calcium-Binding Site of Crystalline Bovine Beta-Trypsin
1975
GE
Bayer Symp.
BAYSAH
0927
0067-4672
5
497
Structure of the Complex Formed by Bovine Trypsin and Bovine Pancreatic Trypsin Inhibitor. Refinement of the Crystal Structure Analysis
1974
UK
J.Mol.Biol.
JMOBAK
0070
0022-2836
89
73
Structure of the Complex Formed by Bovine Trypsin and Bovine Pancreatic Trypsin Inhibitor. II. Crystallographic Refinement at 1.9 Angstroms Resolution
1974
UK
J.Mol.Biol.
JMOBAK
0070
0022-2836
77
417
Structure of the Complex Formed by Bovine Trypsin and Bovine Pancreatic Trypsin Inhibitor. Crystal Structure Determination and Stereochemistry of the Contact Region
1973
National Biomedical Research Foundation, Silver Spring,Md.
Atlas of Protein Sequence and Structure (Data Section)
0435
0-912466-02-2
5
105
1972
National Biomedical Research Foundation, Silver Spring,Md.
Atlas of Protein Sequence and Structure,Supplement 1
435
0-912466-04-9
5
88
1973
1
2
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
23324.287
BETA-TRYPSIN
3.4.21.4
1
man
polymer
6527.568
TRYPSIN INHIBITOR
1
man
polymer
40.078
CALCIUM ION
1
syn
non-polymer
18.015
water
157
nat
water
no
no
IVGGYTCGANTVPYQVSLNSGYHFCGGSLINSQWVVSAAHCYKSGIQVRLGEDNINVVEGNEQFISASKSIVHPSYNSNT
LNNDIMLIKLKSAASLNSRVASISLPTSCASAGTQCLISGWGNTKSSGTSYPDVLKCLKAPILSDSSCKSAYPGQITSNM
FCAGYLEGGKDSCQGDSGGPVVCSGKLQGIVSWGSGCAQKNKPGVYTKVCNYVSWIKQTIASN
IVGGYTCGANTVPYQVSLNSGYHFCGGSLINSQWVVSAAHCYKSGIQVRLGEDNINVVEGNEQFISASKSIVHPSYNSNT
LNNDIMLIKLKSAASLNSRVASISLPTSCASAGTQCLISGWGNTKSSGTSYPDVLKCLKAPILSDSSCKSAYPGQITSNM
FCAGYLEGGKDSCQGDSGGPVVCSGKLQGIVSWGSGCAQKNKPGVYTKVCNYVSWIKQTIASN
E
polypeptide(L)
no
no
RPDFCLEPPYTGPCKARIIRYFYNAKAGLCQTFVYGGCRAKRNNFKSAEDCMRTCGGA
RPDFCLEPPYTGPCKARIIRYFYNAKAGLCQTFVYGGCRAKRNNFKSAEDCMRTCGGA
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
cattle
Bos
sample
9913
PANCREAS
Bos taurus
3.28
62.48
repository
Initial release
Version format compliance
Version format compliance
1
0
1983-01-18
1
1
2008-03-25
1
2
2011-07-13
1983-01-18
SPRSDE
Y
1982-09-27
REL
REL
CA
CALCIUM ION
HOH
water
THE 229 AMINO ACIDS OF TRYPSINOGEN ARE IDENTIFIED BY THE
RESIDUE NUMBERS OF THE HOMOLOGOUS CHYMOTRYPSINOGEN.
IN THIS COMPLEX THE ENZYME IS GIVEN THE CHAIN INDICATOR E
AND THE INHIBITOR IS GIVEN THE CHAIN INDICATOR I. A NULL
(BLANK) CHAIN INDICATOR IS ASSIGNED TO THE CALCIUM AND TO
THE WATER MOLECULES. THE NOMENCLATURE OF THE WATER
MOLECULES IS THAT OF THE DEPOSITORS.
CA
462
3
CA
CA
462
E
HOH
401
4
HOH
HOH
401
E
HOH
402
4
HOH
HOH
402
E
HOH
403
4
HOH
HOH
403
E
HOH
405
4
HOH
HOH
405
E
HOH
406
4
HOH
HOH
406
E
HOH
407
4
HOH
HOH
407
E
HOH
408
4
HOH
HOH
408
E
HOH
409
4
HOH
HOH
409
E
HOH
410
4
HOH
HOH
410
E
HOH
411
4
HOH
HOH
411
E
HOH
412
4
HOH
HOH
412
E
HOH
414
4
HOH
HOH
414
E
HOH
415
4
HOH
HOH
415
E
HOH
416
4
HOH
HOH
416
E
HOH
422
4
HOH
HOH
422
E
HOH
425
4
HOH
HOH
425
E
HOH
426
4
HOH
HOH
426
E
HOH
429
4
HOH
HOH
429
E
HOH
430
4
HOH
HOH
430
E
HOH
431
4
HOH
HOH
431
E
HOH
434
4
HOH
HOH
434
E
HOH
435
4
HOH
HOH
435
E
HOH
436
4
HOH
HOH
436
E
HOH
437
4
HOH
HOH
437
E
HOH
438
4
HOH
HOH
438
E
HOH
439
4
HOH
HOH
439
E
HOH
440
4
HOH
HOH
440
E
HOH
441
4
HOH
HOH
441
E
HOH
442
4
HOH
HOH
442
E
HOH
445
4
HOH
HOH
445
E
HOH
447
4
HOH
HOH
447
E
HOH
448
4
HOH
HOH
448
E
HOH
456
4
HOH
HOH
456
E
HOH
457
4
HOH
HOH
457
E
HOH
463
4
HOH
HOH
463
E
HOH
465
4
HOH
HOH
465
E
HOH
466
4
HOH
HOH
466
E
HOH
469
4
HOH
HOH
469
E
HOH
470
4
HOH
HOH
470
E
HOH
473
4
HOH
HOH
473
E
HOH
475
4
HOH
HOH
475
E
HOH
476
4
HOH
HOH
476
E
HOH
477
4
HOH
HOH
477
E
HOH
479
4
HOH
HOH
479
E
HOH
481
4
HOH
HOH
481
E
HOH
483
4
HOH
HOH
483
E
HOH
487
4
HOH
HOH
487
E
HOH
489
4
HOH
HOH
489
E
HOH
491
4
HOH
HOH
491
E
HOH
495
4
HOH
HOH
495
E
HOH
498
4
HOH
HOH
498
E
HOH
499
4
HOH
HOH
499
E
HOH
502
4
HOH
HOH
502
E
HOH
514
4
HOH
HOH
514
E
HOH
515
4
HOH
HOH
515
E
HOH
516
4
HOH
HOH
516
E
HOH
519
4
HOH
HOH
519
E
HOH
520
4
HOH
HOH
520
E
HOH
522
4
HOH
HOH
522
E
HOH
523
4
HOH
HOH
523
E
HOH
524
4
HOH
HOH
524
E
HOH
526
4
HOH
HOH
526
E
HOH
527
4
HOH
HOH
527
E
HOH
528
4
HOH
HOH
528
E
HOH
529
4
HOH
HOH
529
E
HOH
530
4
HOH
HOH
530
E
HOH
531
4
HOH
HOH
531
E
HOH
534
4
HOH
HOH
534
E
HOH
540
4
HOH
HOH
540
E
HOH
541
4
HOH
HOH
541
E
HOH
542
4
HOH
HOH
542
E
HOH
543
4
HOH
HOH
543
E
HOH
544
4
HOH
HOH
544
E
HOH
545
4
HOH
HOH
545
E
HOH
547
4
HOH
HOH
547
E
HOH
549
4
HOH
HOH
549
E
HOH
550
4
HOH
HOH
550
E
HOH
551
4
HOH
HOH
551
E
HOH
552
4
HOH
HOH
552
E
HOH
554
4
HOH
HOH
554
E
HOH
555
4
HOH
HOH
555
E
HOH
556
4
HOH
HOH
556
E
HOH
559
4
HOH
HOH
559
E
HOH
560
4
HOH
HOH
560
E
HOH
561
4
HOH
HOH
561
E
HOH
562
4
HOH
HOH
562
E
HOH
563
4
HOH
HOH
563
E
HOH
566
4
HOH
HOH
566
E
HOH
570
4
HOH
HOH
570
E
HOH
571
4
HOH
HOH
571
E
HOH
572
4
HOH
HOH
572
E
HOH
573
4
HOH
HOH
573
E
HOH
574
4
HOH
HOH
574
E
HOH
575
4
HOH
HOH
575
E
HOH
576
4
HOH
HOH
576
E
HOH
577
4
HOH
HOH
577
E
HOH
582
4
HOH
HOH
582
E
HOH
583
4
HOH
HOH
583
E
HOH
585
4
HOH
HOH
585
E
HOH
591
4
HOH
HOH
591
E
HOH
592
4
HOH
HOH
592
E
HOH
593
4
HOH
HOH
593
E
HOH
594
4
HOH
HOH
594
E
HOH
595
4
HOH
HOH
595
E
HOH
597
4
HOH
HOH
597
E
HOH
598
4
HOH
HOH
598
E
HOH
599
4
HOH
HOH
599
E
HOH
601
4
HOH
HOH
601
E
HOH
602
4
HOH
HOH
602
E
HOH
603
4
HOH
HOH
603
E
HOH
604
4
HOH
HOH
604
E
HOH
605
4
HOH
HOH
605
E
HOH
606
4
HOH
HOH
606
E
HOH
607
4
HOH
HOH
607
E
HOH
608
4
HOH
HOH
608
E
HOH
609
4
HOH
HOH
609
E
HOH
611
4
HOH
HOH
611
E
HOH
612
4
HOH
HOH
612
E
HOH
613
4
HOH
HOH
613
E
HOH
614
4
HOH
HOH
614
E
HOH
615
4
HOH
HOH
615
E
HOH
616
4
HOH
HOH
616
E
HOH
400
4
HOH
HOH
400
I
HOH
404
4
HOH
HOH
404
I
HOH
413
4
HOH
HOH
413
I
HOH
417
4
HOH
HOH
417
I
HOH
419
4
HOH
HOH
419
I
HOH
420
4
HOH
HOH
420
I
HOH
421
4
HOH
HOH
421
I
HOH
423
4
HOH
HOH
423
I
HOH
427
4
HOH
HOH
427
I
HOH
428
4
HOH
HOH
428
I
HOH
450
4
HOH
HOH
450
I
HOH
452
4
HOH
HOH
452
I
HOH
455
4
HOH
HOH
455
I
HOH
501
4
HOH
HOH
501
I
HOH
503
4
HOH
HOH
503
I
HOH
505
4
HOH
HOH
505
I
HOH
507
4
HOH
HOH
507
I
HOH
508
4
HOH
HOH
508
I
HOH
511
4
HOH
HOH
511
I
HOH
512
4
HOH
HOH
512
I
HOH
532
4
HOH
HOH
532
I
HOH
533
4
HOH
HOH
533
I
HOH
536
4
HOH
HOH
536
I
HOH
537
4
HOH
HOH
537
I
HOH
538
4
HOH
HOH
538
I
HOH
564
4
HOH
HOH
564
I
HOH
565
4
HOH
HOH
565
I
HOH
567
4
HOH
HOH
567
I
HOH
568
4
HOH
HOH
568
I
HOH
569
4
HOH
HOH
569
I
HOH
587
4
HOH
HOH
587
I
HOH
589
4
HOH
HOH
589
I
HOH
590
4
HOH
HOH
590
I
HOH
600
4
HOH
HOH
600
I
HOH
610
4
HOH
HOH
610
I
ILE
16
n
1
ILE
16
E
VAL
17
n
2
VAL
17
E
GLY
18
n
3
GLY
18
E
GLY
19
n
4
GLY
19
E
TYR
20
n
5
TYR
20
E
THR
21
n
6
THR
21
E
CYS
22
n
7
CYS
22
E
GLY
23
n
8
GLY
23
E
ALA
24
n
9
ALA
24
E
ASN
25
n
10
ASN
25
E
THR
26
n
11
THR
26
E
VAL
27
n
12
VAL
27
E
PRO
28
n
13
PRO
28
E
TYR
29
n
14
TYR
29
E
GLN
30
n
15
GLN
30
E
VAL
31
n
16
VAL
31
E
SER
32
n
17
SER
32
E
LEU
33
n
18
LEU
33
E
ASN
34
n
19
ASN
34
E
SER
37
n
20
SER
37
E
GLY
38
n
21
GLY
38
E
TYR
39
n
22
TYR
39
E
HIS
40
n
23
HIS
40
E
PHE
41
n
24
PHE
41
E
CYS
42
n
25
CYS
42
E
GLY
43
n
26
GLY
43
E
GLY
44
n
27
GLY
44
E
SER
45
n
28
SER
45
E
LEU
46
n
29
LEU
46
E
ILE
47
n
30
ILE
47
E
ASN
48
n
31
ASN
48
E
SER
49
n
32
SER
49
E
GLN
50
n
33
GLN
50
E
TRP
51
n
34
TRP
51
E
VAL
52
n
35
VAL
52
E
VAL
53
n
36
VAL
53
E
SER
54
n
37
SER
54
E
ALA
55
n
38
ALA
55
E
ALA
56
n
39
ALA
56
E
HIS
57
n
40
HIS
57
E
CYS
58
n
41
CYS
58
E
TYR
59
n
42
TYR
59
E
LYS
60
n
43
LYS
60
E
SER
61
n
44
SER
61
E
GLY
62
n
45
GLY
62
E
ILE
63
n
46
ILE
63
E
GLN
64
n
47
GLN
64
E
VAL
65
n
48
VAL
65
E
ARG
66
n
49
ARG
66
E
LEU
67
n
50
LEU
67
E
GLY
69
n
51
GLY
69
E
GLU
70
n
52
GLU
70
E
ASP
71
n
53
ASP
71
E
ASN
72
n
54
ASN
72
E
ILE
73
n
55
ILE
73
E
ASN
74
n
56
ASN
74
E
VAL
75
n
57
VAL
75
E
VAL
76
n
58
VAL
76
E
GLU
77
n
59
GLU
77
E
GLY
78
n
60
GLY
78
E
ASN
79
n
61
ASN
79
E
GLU
80
n
62
GLU
80
E
GLN
81
n
63
GLN
81
E
PHE
82
n
64
PHE
82
E
ILE
83
n
65
ILE
83
E
SER
84
n
66
SER
84
E
ALA
85
n
67
ALA
85
E
SER
86
n
68
SER
86
E
LYS
87
n
69
LYS
87
E
SER
88
n
70
SER
88
E
ILE
89
n
71
ILE
89
E
VAL
90
n
72
VAL
90
E
HIS
91
n
73
HIS
91
E
PRO
92
n
74
PRO
92
E
SER
93
n
75
SER
93
E
TYR
94
n
76
TYR
94
E
ASN
95
n
77
ASN
95
E
SER
96
n
78
SER
96
E
ASN
97
n
79
ASN
97
E
THR
98
n
80
THR
98
E
LEU
99
n
81
LEU
99
E
ASN
100
n
82
ASN
100
E
ASN
101
n
83
ASN
101
E
ASP
102
n
84
ASP
102
E
ILE
103
n
85
ILE
103
E
MET
104
n
86
MET
104
E
LEU
105
n
87
LEU
105
E
ILE
106
n
88
ILE
106
E
LYS
107
n
89
LYS
107
E
LEU
108
n
90
LEU
108
E
LYS
109
n
91
LYS
109
E
SER
110
n
92
SER
110
E
ALA
111
n
93
ALA
111
E
ALA
112
n
94
ALA
112
E
SER
113
n
95
SER
113
E
LEU
114
n
96
LEU
114
E
ASN
115
n
97
ASN
115
E
SER
116
n
98
SER
116
E
ARG
117
n
99
ARG
117
E
VAL
118
n
100
VAL
118
E
ALA
119
n
101
ALA
119
E
SER
120
n
102
SER
120
E
ILE
121
n
103
ILE
121
E
SER
122
n
104
SER
122
E
LEU
123
n
105
LEU
123
E
PRO
124
n
106
PRO
124
E
THR
125
n
107
THR
125
E
SER
127
n
108
SER
127
E
CYS
128
n
109
CYS
128
E
ALA
129
n
110
ALA
129
E
SER
130
n
111
SER
130
E
ALA
132
n
112
ALA
132
E
GLY
133
n
113
GLY
133
E
THR
134
n
114
THR
134
E
GLN
135
n
115
GLN
135
E
CYS
136
n
116
CYS
136
E
LEU
137
n
117
LEU
137
E
ILE
138
n
118
ILE
138
E
SER
139
n
119
SER
139
E
GLY
140
n
120
GLY
140
E
TRP
141
n
121
TRP
141
E
GLY
142
n
122
GLY
142
E
ASN
143
n
123
ASN
143
E
THR
144
n
124
THR
144
E
LYS
145
n
125
LYS
145
E
SER
146
n
126
SER
146
E
SER
147
n
127
SER
147
E
GLY
148
n
128
GLY
148
E
THR
149
n
129
THR
149
E
SER
150
n
130
SER
150
E
TYR
151
n
131
TYR
151
E
PRO
152
n
132
PRO
152
E
ASP
153
n
133
ASP
153
E
VAL
154
n
134
VAL
154
E
LEU
155
n
135
LEU
155
E
LYS
156
n
136
LYS
156
E
CYS
157
n
137
CYS
157
E
LEU
158
n
138
LEU
158
E
LYS
159
n
139
LYS
159
E
ALA
160
n
140
ALA
160
E
PRO
161
n
141
PRO
161
E
ILE
162
n
142
ILE
162
E
LEU
163
n
143
LEU
163
E
SER
164
n
144
SER
164
E
ASP
165
n
145
ASP
165
E
SER
166
n
146
SER
166
E
SER
167
n
147
SER
167
E
CYS
168
n
148
CYS
168
E
LYS
169
n
149
LYS
169
E
SER
170
n
150
SER
170
E
ALA
171
n
151
ALA
171
E
TYR
172
n
152
TYR
172
E
PRO
173
n
153
PRO
173
E
GLY
174
n
154
GLY
174
E
GLN
175
n
155
GLN
175
E
ILE
176
n
156
ILE
176
E
THR
177
n
157
THR
177
E
SER
178
n
158
SER
178
E
ASN
179
n
159
ASN
179
E
MET
180
n
160
MET
180
E
PHE
181
n
161
PHE
181
E
CYS
182
n
162
CYS
182
E
ALA
183
n
163
ALA
183
E
GLY
184
n
164
A
GLY
184
E
TYR
184
n
165
TYR
184
E
LEU
185
n
166
LEU
185
E
GLU
186
n
167
GLU
186
E
GLY
187
n
168
GLY
187
E
GLY
188
n
169
A
GLY
188
E
LYS
188
n
170
LYS
188
E
ASP
189
n
171
ASP
189
E
SER
190
n
172
SER
190
E
CYS
191
n
173
CYS
191
E
GLN
192
n
174
GLN
192
E
GLY
193
n
175
GLY
193
E
ASP
194
n
176
ASP
194
E
SER
195
n
177
SER
195
E
GLY
196
n
178
GLY
196
E
GLY
197
n
179
GLY
197
E
PRO
198
n
180
PRO
198
E
VAL
199
n
181
VAL
199
E
VAL
200
n
182
VAL
200
E
CYS
201
n
183
CYS
201
E
SER
202
n
184
SER
202
E
GLY
203
n
185
GLY
203
E
LYS
204
n
186
LYS
204
E
LEU
209
n
187
LEU
209
E
GLN
210
n
188
GLN
210
E
GLY
211
n
189
GLY
211
E
ILE
212
n
190
ILE
212
E
VAL
213
n
191
VAL
213
E
SER
214
n
192
SER
214
E
TRP
215
n
193
TRP
215
E
GLY
216
n
194
GLY
216
E
SER
217
n
195
SER
217
E
GLY
219
n
196
GLY
219
E
CYS
220
n
197
CYS
220
E
ALA
221
n
198
A
ALA
221
E
GLN
221
n
199
GLN
221
E
LYS
222
n
200
LYS
222
E
ASN
223
n
201
ASN
223
E
LYS
224
n
202
LYS
224
E
PRO
225
n
203
PRO
225
E
GLY
226
n
204
GLY
226
E
VAL
227
n
205
VAL
227
E
TYR
228
n
206
TYR
228
E
THR
229
n
207
THR
229
E
LYS
230
n
208
LYS
230
E
VAL
231
n
209
VAL
231
E
CYS
232
n
210
CYS
232
E
ASN
233
n
211
ASN
233
E
TYR
234
n
212
TYR
234
E
VAL
235
n
213
VAL
235
E
SER
236
n
214
SER
236
E
TRP
237
n
215
TRP
237
E
ILE
238
n
216
ILE
238
E
LYS
239
n
217
LYS
239
E
GLN
240
n
218
GLN
240
E
THR
241
n
219
THR
241
E
ILE
242
n
220
ILE
242
E
ALA
243
n
221
ALA
243
E
SER
244
n
222
SER
244
E
ASN
245
n
223
ASN
245
E
ARG
1
n
1
ARG
1
I
PRO
2
n
2
PRO
2
I
ASP
3
n
3
ASP
3
I
PHE
4
n
4
PHE
4
I
CYS
5
n
5
CYS
5
I
LEU
6
n
6
LEU
6
I
GLU
7
n
7
GLU
7
I
PRO
8
n
8
PRO
8
I
PRO
9
n
9
PRO
9
I
TYR
10
n
10
TYR
10
I
THR
11
n
11
THR
11
I
GLY
12
n
12
GLY
12
I
PRO
13
n
13
PRO
13
I
CYS
14
n
14
CYS
14
I
LYS
15
n
15
LYS
15
I
ALA
16
n
16
ALA
16
I
ARG
17
n
17
ARG
17
I
ILE
18
n
18
ILE
18
I
ILE
19
n
19
ILE
19
I
ARG
20
n
20
ARG
20
I
TYR
21
n
21
TYR
21
I
PHE
22
n
22
PHE
22
I
TYR
23
n
23
TYR
23
I
ASN
24
n
24
ASN
24
I
ALA
25
n
25
ALA
25
I
LYS
26
n
26
LYS
26
I
ALA
27
n
27
ALA
27
I
GLY
28
n
28
GLY
28
I
LEU
29
n
29
LEU
29
I
CYS
30
n
30
CYS
30
I
GLN
31
n
31
GLN
31
I
THR
32
n
32
THR
32
I
PHE
33
n
33
PHE
33
I
VAL
34
n
34
VAL
34
I
TYR
35
n
35
TYR
35
I
GLY
36
n
36
GLY
36
I
GLY
37
n
37
GLY
37
I
CYS
38
n
38
CYS
38
I
ARG
39
n
39
ARG
39
I
ALA
40
n
40
ALA
40
I
LYS
41
n
41
LYS
41
I
ARG
42
n
42
ARG
42
I
ASN
43
n
43
ASN
43
I
ASN
44
n
44
ASN
44
I
PHE
45
n
45
PHE
45
I
LYS
46
n
46
LYS
46
I
SER
47
n
47
SER
47
I
ALA
48
n
48
ALA
48
I
GLU
49
n
49
GLU
49
I
ASP
50
n
50
ASP
50
I
CYS
51
n
51
CYS
51
I
MET
52
n
52
MET
52
I
ARG
53
n
53
ARG
53
I
THR
54
n
54
THR
54
I
CYS
55
n
55
CYS
55
I
GLY
56
n
56
GLY
56
I
GLY
57
n
57
GLY
57
I
ALA
58
n
58
ALA
58
I
author_and_software_defined_assembly
PISA
2
dimeric
software_defined_assembly
PISA
8
octameric
1520
-19
11660
12850
-100
39860
E
GLU
80
A
OE2
GLU
62
1_555
E
CA
462
C
CA
CA
1_555
E
HOH
481
D
O
HOH
1_555
87.0
E
GLU
80
A
OE2
GLU
62
1_555
E
CA
462
C
CA
CA
1_555
E
GLU
70
A
OE2
GLU
52
1_555
103.3
E
HOH
481
D
O
HOH
1_555
E
CA
462
C
CA
CA
1_555
E
GLU
70
A
OE2
GLU
52
1_555
99.2
E
GLU
80
A
OE2
GLU
62
1_555
E
CA
462
C
CA
CA
1_555
E
VAL
75
A
O
VAL
57
1_555
89.8
E
HOH
481
D
O
HOH
1_555
E
CA
462
C
CA
CA
1_555
E
VAL
75
A
O
VAL
57
1_555
113.6
E
GLU
70
A
OE2
GLU
52
1_555
E
CA
462
C
CA
CA
1_555
E
VAL
75
A
O
VAL
57
1_555
145.3
E
GLU
80
A
OE2
GLU
62
1_555
E
CA
462
C
CA
CA
1_555
E
HOH
559
D
O
HOH
1_555
87.1
E
HOH
481
D
O
HOH
1_555
E
CA
462
C
CA
CA
1_555
E
HOH
559
D
O
HOH
1_555
170.0
E
GLU
70
A
OE2
GLU
52
1_555
E
CA
462
C
CA
CA
1_555
E
HOH
559
D
O
HOH
1_555
74.4
E
VAL
75
A
O
VAL
57
1_555
E
CA
462
C
CA
CA
1_555
E
HOH
559
D
O
HOH
1_555
74.4
E
GLU
80
A
OE2
GLU
62
1_555
E
CA
462
C
CA
CA
1_555
E
ASN
72
A
O
ASN
54
1_555
163.5
E
HOH
481
D
O
HOH
1_555
E
CA
462
C
CA
CA
1_555
E
ASN
72
A
O
ASN
54
1_555
88.2
E
GLU
70
A
OE2
GLU
52
1_555
E
CA
462
C
CA
CA
1_555
E
ASN
72
A
O
ASN
54
1_555
93.0
E
VAL
75
A
O
VAL
57
1_555
E
CA
462
C
CA
CA
1_555
E
ASN
72
A
O
ASN
54
1_555
77.7
E
HOH
559
D
O
HOH
1_555
E
CA
462
C
CA
CA
1_555
E
ASN
72
A
O
ASN
54
1_555
99.6
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_575
-x,-y+2,z
crystal symmetry operation
0.0000000000
168.8000000000
0.0000000000
-1.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
0.0000000000
0.0000000000
0.0000000000
-1.0000000000
3_555
-x,y,-z
crystal symmetry 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
4_575
x,-y+2,-z
crystal symmetry operation
0.0000000000
168.8000000000
0.0000000000
1
E
CE
LYS
87
A
CE
LYS
69
0
Y
1
E
NZ
LYS
87
A
NZ
LYS
69
0
Y
1
E
CD
LYS
109
A
CD
LYS
91
0
Y
1
E
CE
LYS
109
A
CE
LYS
91
0
Y
1
E
NZ
LYS
109
A
NZ
LYS
91
0
Y
1
E
CZ
ARG
117
A
CZ
ARG
99
0
Y
1
E
NH1
ARG
117
A
NH1
ARG
99
0
Y
1
E
NH2
ARG
117
A
NH2
ARG
99
0
Y
1
E
OE1
GLN
135
A
OE1
GLN
115
0
Y
1
E
NE2
GLN
135
A
NE2
GLN
115
0
Y
1
E
CE
LYS
145
A
CE
LYS
125
0
Y
1
E
NZ
LYS
145
A
NZ
LYS
125
0
Y
1
E
OG
SER
146
A
OG
SER
126
0
Y
1
E
OG
SER
147
A
OG
SER
127
0
Y
1
E
NZ
LYS
159
A
NZ
LYS
139
0
Y
1
E
OD1
ASP
165
A
OD1
ASP
145
0
Y
1
E
OD2
ASP
165
A
OD2
ASP
145
0
Y
1
E
NZ
LYS
169
A
NZ
LYS
149
0
Y
1
E
OE1
GLU
186
A
OE1
GLU
167
0
Y
1
E
OE2
GLU
186
A
OE2
GLU
167
0
Y
1
E
NZ
LYS
188
A
NZ
LYS
170
0
Y
1
E
OG
SER
202
A
OG
SER
184
0
Y
1
E
CE
LYS
204
A
CE
LYS
186
0
Y
1
E
NZ
LYS
204
A
NZ
LYS
186
0
Y
1
E
OG
SER
217
A
OG
SER
195
0
Y
1
E
OE1
GLN
221
A
OE1
GLN
199
0
Y
1
E
NE2
GLN
221
A
NE2
GLN
199
0
Y
1
E
CG
LYS
222
A
CG
LYS
200
0
Y
1
E
CD
LYS
222
A
CD
LYS
200
0
Y
1
E
CE
LYS
222
A
CE
LYS
200
0
Y
1
E
NZ
LYS
222
A
NZ
LYS
200
0
Y
1
E
CE
LYS
224
A
CE
LYS
202
0
Y
1
E
NZ
LYS
224
A
NZ
LYS
202
0
Y
1
E
NZ
LYS
230
A
NZ
LYS
208
0
Y
1
E
OG
SER
236
A
OG
SER
214
0
Y
1
I
CB
ASP
3
B
CB
ASP
3
0
Y
1
I
CG
ASP
3
B
CG
ASP
3
0
Y
1
I
OD1
ASP
3
B
OD1
ASP
3
0
Y
1
I
OD2
ASP
3
B
OD2
ASP
3
0
Y
1
I
CG
GLU
7
B
CG
GLU
7
0
Y
1
I
CD
GLU
7
B
CD
GLU
7
0
Y
1
I
OE1
GLU
7
B
OE1
GLU
7
0
Y
1
I
OE2
GLU
7
B
OE2
GLU
7
0
Y
1
I
CG
LYS
26
B
CG
LYS
26
0
Y
1
I
CD
LYS
26
B
CD
LYS
26
0
Y
1
I
CE
LYS
26
B
CE
LYS
26
0
Y
1
I
NZ
LYS
26
B
NZ
LYS
26
0
Y
1
I
NZ
LYS
41
B
NZ
LYS
41
0
Y
1
I
O
GLY
57
B
O
GLY
57
0
Y
1
I
ARG
1
B
ARG
1
0
Y
1
I
PRO
2
B
PRO
2
0
Y
1
E
GLY
23
10.11
1
E
HIS
40
11.43
1
E
ILE
47
-10.15
1
E
LYS
60
-10.03
1
E
GLU
70
-10.10
1
E
VAL
90
13.52
1
E
HIS
91
12.67
1
E
LYS
107
11.07
1
E
SER
147
12.76
1
E
TYR
151
11.02
1
E
LYS
159
12.33
1
E
ALA
160
12.02
1
E
ASN
233
13.53
1
I
ASP
3
-12.03
1
I
TYR
35
12.14
1
I
GLY
56
11.15
1
E
ASN
25
0.072
SIDE CHAIN
1
E
GLN
30
0.077
SIDE CHAIN
1
E
TYR
59
0.061
SIDE CHAIN
1
E
GLN
64
0.081
SIDE CHAIN
1
E
ASN
72
0.083
SIDE CHAIN
1
E
GLU
77
0.083
SIDE CHAIN
1
E
ASN
97
0.085
SIDE CHAIN
1
E
ASP
165
0.106
SIDE CHAIN
1
E
ASN
223
0.080
SIDE CHAIN
1
E
GLN
240
0.075
SIDE CHAIN
1
I
GLU
7
0.075
SIDE CHAIN
1
I
ASN
24
0.083
SIDE CHAIN
1
I
ASN
44
0.074
SIDE CHAIN
1
-7.26
1.20
123.30
116.04
E
E
E
OE1
CD
OE2
GLU
GLU
GLU
77
77
77
N
1
-5.70
0.90
118.30
112.60
E
E
E
CB
CG
OD2
ASP
ASP
ASP
165
165
165
N
1
4.25
0.50
120.30
124.55
I
I
I
NE
CZ
NH1
ARG
ARG
ARG
39
39
39
N
1
E
E
NE1
CE2
TRP
TRP
51
51
-0.098
0.013
1.371
1.273
N
1
E
E
NE1
CE2
TRP
TRP
141
141
-0.084
0.013
1.371
1.287
N
1
E
E
CD
OE2
GLU
GLU
186
186
0.066
0.011
1.252
1.318
N
1
E
E
NE1
CE2
TRP
TRP
215
215
-0.092
0.013
1.371
1.279
N
1
E
E
NE1
CE2
TRP
TRP
237
237
-0.102
0.013
1.371
1.269
N
1
E
I
NZ
O
LYS
THR
109
54
1.69
1_555
2_575
1
E
ASN
25
56.31
19.16
1
E
VAL
27
-116.57
72.52
1
E
ASP
71
-123.64
-77.59
1
E
ASN
115
-129.72
-144.66
1
I
PRO
2
-62.89
-178.25
1
I
ARG
17
-112.55
79.34
0.187
1.9
6.8
1
1.9
6.8
157
2241
1
0
2083
BETA-TRYPSIN (E.C.3.4.21.4) COMPLEX WITH PANCREATIC TRYPSIN INHIBITOR
THE GEOMETRY OF THE REACTIVE SITE AND OF THE PEPTIDE GROUPS IN TRYPSIN, TRYPSINOGEN AND ITS COMPLEXES WITH INHIBITORS
1
N
N
2
N
N
3
N
N
4
N
N
4
N
N
E
SER
164
A
SER
144
HELX_P
SNGL ALPHA TURN,REST IRREG.
E
ILE
176
A
ILE
156
1
H1
13
E
LYS
230
A
LYS
208
HELX_P
CONTIGUOUS WITH H3
E
VAL
235
A
VAL
213
5
H2
6
E
SER
236
A
SER
214
HELX_P
CONTIGUOUS WITH H2
E
ASN
245
A
ASN
223
1
H3
10
I
SER
47
B
SER
47
HELX_P
I
GLY
56
B
GLY
56
1
H4
10
disulf
2.025
E
CYS
22
A
SG
CYS
7
1_555
E
CYS
157
A
SG
CYS
137
1_555
disulf
2.026
E
CYS
42
A
SG
CYS
25
1_555
E
CYS
58
A
SG
CYS
41
1_555
disulf
2.034
E
CYS
128
A
SG
CYS
109
1_555
E
CYS
232
A
SG
CYS
210
1_555
disulf
2.078
E
CYS
136
A
SG
CYS
116
1_555
E
CYS
201
A
SG
CYS
183
1_555
disulf
2.048
E
CYS
168
A
SG
CYS
148
1_555
E
CYS
182
A
SG
CYS
162
1_555
disulf
2.046
E
CYS
191
A
SG
CYS
173
1_555
E
CYS
220
A
SG
CYS
197
1_555
disulf
1.973
I
CYS
5
B
SG
CYS
5
1_555
I
CYS
55
B
SG
CYS
55
1_555
disulf
2.030
I
CYS
14
B
SG
CYS
14
1_555
I
CYS
38
B
SG
CYS
38
1_555
disulf
2.071
I
CYS
30
B
SG
CYS
30
1_555
I
CYS
51
B
SG
CYS
51
1_555
metalc
2.439
E
CA
462
C
CA
CA
1_555
E
GLU
80
A
OE2
GLU
62
1_555
metalc
2.415
E
CA
462
C
CA
CA
1_555
E
HOH
481
D
O
HOH
1_555
metalc
2.335
E
CA
462
C
CA
CA
1_555
E
GLU
70
A
OE2
GLU
52
1_555
metalc
2.388
E
CA
462
C
CA
CA
1_555
E
VAL
75
A
O
VAL
57
1_555
metalc
2.510
E
CA
462
C
CA
CA
1_555
E
HOH
559
D
O
HOH
1_555
metalc
2.239
E
CA
462
C
CA
CA
1_555
E
ASN
72
A
O
ASN
54
1_555
COMPLEX (PROTEINASE/INHIBITOR)
COMPLEX (PROTEINASE-INHIBITOR), COMPLEX (PROTEINASE-INHIBITOR) complex
TRY1_BOVIN
UNP
1
1
P00760
FIFLALLGAAVAFPVDDDDKIVGGYTCGANTVPYQVSLNSGYHFCGGSLINSQWVVSAAHCYKSGIQVRLGEDNINVVEG
NEQFISASKSIVHPSYNSNTLNNDIMLIKLKSAASLNSRVASISLPTSCASAGTQCLISGWGNTKSSGTSYPDVLKCLKA
PILSDSSCKSAYPGQITSNMFCAGYLEGGKDSCQGDSGGPVVCSGKLQGIVSWGSGCAQKNKPGVYTKVCNYVSWIKQTI
ASN
BPT1_BOVIN
UNP
2
1
P00974
MKMSRLCLSVALLVLLGTLAASTPGCDTSNQAKAQRPDFCLEPPYTGPCKARIIRYFYNAKAGLCQTFVYGGCRAKRNNF
KSAEDCMRTCGGAIGPWENL
21
243
2PTC
16
245
P00760
E
1
1
223
36
93
2PTC
1
58
P00974
I
2
1
58
2
anti-parallel
I
ALA
16
B
ALA
16
I
ALA
25
B
ALA
25
I
GLY
28
B
GLY
28
I
GLY
36
B
GLY
36
BINDING SITE FOR RESIDUE CA E 462
Software
6
E
GLU
70
A
GLU
52
6
1_555
E
ASN
72
A
ASN
54
6
1_555
E
VAL
75
A
VAL
57
6
1_555
E
GLU
80
A
GLU
62
6
1_555
E
HOH
481
D
HOH
6
1_555
E
HOH
559
D
HOH
6
1_555
23
I 2 2 2