0.013417
0.007747
0.000000
0.000000
0.015493
0.000000
0.000000
0.000000
0.014108
0.00000
0.00000
0.00000
Navia, M.A.
Mckeever, B.M.
Springer, J.P.
Lin, T.-Y.
Williams, H.R.
Fluder, E.M.
Dorn, C.P.
Hoogsteen, K.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
6
90.00
90.00
120.00
74.530
74.530
70.880
C H3 Cl
50.488
chloromethane
Chloro Methyl group
non-polymer
C3 H7 N O2
89.093
y
ALANINE
L-peptide linking
C3 H9 N O2
91.109
n
(2S)-2-aminopropane-1,1-diol
peptide-like
C6 H15 N4 O2 1
175.209
y
ARGININE
L-peptide linking
C4 H8 N2 O3
132.118
y
ASPARAGINE
L-peptide linking
C4 H7 N O4
133.103
y
ASPARTIC ACID
L-peptide linking
C3 H7 N O2 S
121.158
y
CYSTEINE
L-peptide linking
C5 H10 N2 O3
146.144
y
GLUTAMINE
L-peptide linking
C5 H9 N O4
147.129
y
GLUTAMIC ACID
L-peptide linking
C2 H5 N O2
75.067
y
GLYCINE
peptide linking
C6 H10 N3 O2 1
156.162
y
HISTIDINE
L-peptide linking
H2 O
18.015
WATER
non-polymer
C6 H13 N O2
131.173
y
ISOLEUCINE
L-peptide linking
C6 H13 N O2
131.173
y
LEUCINE
L-peptide linking
C5 H11 N O2 S
149.211
y
METHIONINE
L-peptide linking
C5 H8 O4
132.115
SUCCINIC ACID MONOMETHYL ESTER
non-polymer
C9 H11 N O2
165.189
y
PHENYLALANINE
L-peptide linking
C5 H9 N O2
115.130
y
PROLINE
L-peptide linking
C3 H7 N O3
105.093
y
SERINE
L-peptide linking
C4 H9 N O3
119.119
y
THREONINE
L-peptide linking
C11 H12 N2 O2
204.225
y
TRYPTOPHAN
L-peptide linking
C9 H11 N O3
181.189
y
TYROSINE
L-peptide linking
C5 H11 N O2
117.146
y
VALINE
L-peptide linking
US
Proc.Natl.Acad.Sci.USA
PNASA6
0040
0027-8424
86
7
11
10.1073/pnas.86.1.7
2911584
Structure of human neutrophil elastase in complex with a peptide chloromethyl ketone inhibitor at 1.84-A resolution.
1989
US
J.Biol.Chem.
JBCHA3
0071
0021-9258
262
17178
Crystallization of Human Neutrophil Elastase
1987
0.013417
0.007747
0.000000
0.000000
0.015493
0.000000
0.000000
0.000000
0.014108
0.00000
0.00000
0.00000
1
x-ray
1
1.0
23319.967
HUMAN LEUCOCYTE ELASTASE
3.4.21.37
1
man
polymer
476.952
METHOXYSUCCINYL-ALA-ALA-PRO-ALA CHLOROMETHYL KETONE INHIBITOR
1
syn
polymer
18.015
water
225
nat
water
no
no
IVGGRRARPHAWPFMVSLQLRGGHFCGATLIAPNFVMSAAHCVANVNVRAVRVVLGAHNLSRREPTRQVFAVQRIFEDGY
DPVNLLNDIVILQLNGSATINANVQVAQLPAQGRRLGNGVQCLAMGWGLLGRNRGIASVLQELNVTVVTSLCRRSNVCTL
VRGRQAGVCFGDSGSPLVCNGLIHGIASFVRGGCASGLYPDAFAPVAQFVNWIDSIIQ
IVGGRRARPHAWPFMVSLQLRGGHFCGATLIAPNFVMSAAHCVANVNVRAVRVVLGAHNLSRREPTRQVFAVQRIFEDGY
DPVNLLNDIVILQLNGSATINANVQVAQLPAQGRRLGNGVQCLAMGWGLLGRNRGIASVLQELNVTVVTSLCRRSNVCTL
VRGRQAGVCFGDSGSPLVCNGLIHGIASFVRGGCASGLYPDAFAPVAQFVNWIDSIIQ
E
polypeptide(L)
no
yes
(MSU)AAP(ALV)(0QE)
XAAPAX
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
human
sample
9606
Homo sapiens
2.39
48.55
repository
Initial release
Version format compliance
Atomic model
Database references
Derived calculations
Non-polymer description
Structure summary
Version format compliance
Other
1
0
1989-10-15
1
1
2008-03-24
1
2
2011-07-13
1
3
2012-12-12
Y
1989-04-10
REL
HOH
water
THE UNBOUND FORM OF THE INHIBITOR (CHAIN I) IS METHOXYSUCCINYL-ALA-ALA-PRO-ALA-CHLOROMETHYLKETONE. UPON REACTION WITH PROTEIN IT FORMS TWO COVALENT BONDS: 1) A COVALENT BOND TO SER 195 FORMING A HEMIKETAL ALV AND 2) A COVALENT BOND TO NE2 OF HIS 57
Inhibitor
methoxysuccinyl-alanyl-alanyl-prolyl-alanine chloromethyl ketone
Peptide-like
HOH
1
3
HOH
HOH
244
E
HOH
2
3
HOH
HOH
245
E
HOH
3
3
HOH
HOH
246
E
HOH
4
3
HOH
HOH
247
E
HOH
5
3
HOH
HOH
248
E
HOH
6
3
HOH
HOH
249
E
HOH
7
3
HOH
HOH
250
E
HOH
8
3
HOH
HOH
251
E
HOH
9
3
HOH
HOH
252
E
HOH
10
3
HOH
HOH
253
E
HOH
11
3
HOH
HOH
254
E
HOH
12
3
HOH
HOH
255
E
HOH
13
3
HOH
HOH
256
E
HOH
14
3
HOH
HOH
257
E
HOH
15
3
HOH
HOH
258
E
HOH
16
3
HOH
HOH
259
E
HOH
17
3
HOH
HOH
260
E
HOH
18
3
HOH
HOH
261
E
HOH
19
3
HOH
HOH
262
E
HOH
100
3
HOH
HOH
263
E
HOH
101
3
HOH
HOH
264
E
HOH
103
3
HOH
HOH
265
E
HOH
106
3
HOH
HOH
266
E
HOH
110
3
HOH
HOH
267
E
HOH
111
3
HOH
HOH
268
E
HOH
112
3
HOH
HOH
269
E
HOH
114
3
HOH
HOH
270
E
HOH
115
3
HOH
HOH
271
E
HOH
117
3
HOH
HOH
272
E
HOH
119
3
HOH
HOH
273
E
HOH
120
3
HOH
HOH
274
E
HOH
121
3
HOH
HOH
275
E
HOH
123
3
HOH
HOH
276
E
HOH
124
3
HOH
HOH
277
E
HOH
126
3
HOH
HOH
278
E
HOH
128
3
HOH
HOH
279
E
HOH
129
3
HOH
HOH
280
E
HOH
130
3
HOH
HOH
281
E
HOH
131
3
HOH
HOH
282
E
HOH
133
3
HOH
HOH
283
E
HOH
134
3
HOH
HOH
284
E
HOH
136
3
HOH
HOH
285
E
HOH
137
3
HOH
HOH
286
E
HOH
138
3
HOH
HOH
287
E
HOH
139
3
HOH
HOH
288
E
HOH
140
3
HOH
HOH
289
E
HOH
141
3
HOH
HOH
290
E
HOH
142
3
HOH
HOH
291
E
HOH
144
3
HOH
HOH
292
E
HOH
145
3
HOH
HOH
293
E
HOH
146
3
HOH
HOH
294
E
HOH
147
3
HOH
HOH
295
E
HOH
149
3
HOH
HOH
296
E
HOH
150
3
HOH
HOH
297
E
HOH
151
3
HOH
HOH
298
E
HOH
153
3
HOH
HOH
299
E
HOH
155
3
HOH
HOH
300
E
HOH
156
3
HOH
HOH
301
E
HOH
157
3
HOH
HOH
302
E
HOH
158
3
HOH
HOH
303
E
HOH
159
3
HOH
HOH
304
E
HOH
160
3
HOH
HOH
305
E
HOH
161
3
HOH
HOH
306
E
HOH
162
3
HOH
HOH
307
E
HOH
163
3
HOH
HOH
308
E
HOH
164
3
HOH
HOH
309
E
HOH
165
3
HOH
HOH
310
E
HOH
168
3
HOH
HOH
311
E
HOH
169
3
HOH
HOH
312
E
HOH
170
3
HOH
HOH
313
E
HOH
171
3
HOH
HOH
314
E
HOH
173
3
HOH
HOH
315
E
HOH
174
3
HOH
HOH
316
E
HOH
175
3
HOH
HOH
317
E
HOH
176
3
HOH
HOH
318
E
HOH
177
3
HOH
HOH
319
E
HOH
178
3
HOH
HOH
320
E
HOH
180
3
HOH
HOH
321
E
HOH
181
3
HOH
HOH
322
E
HOH
182
3
HOH
HOH
323
E
HOH
183
3
HOH
HOH
324
E
HOH
184
3
HOH
HOH
325
E
HOH
185
3
HOH
HOH
326
E
HOH
187
3
HOH
HOH
327
E
HOH
188
3
HOH
HOH
328
E
HOH
189
3
HOH
HOH
329
E
HOH
190
3
HOH
HOH
330
E
HOH
191
3
HOH
HOH
331
E
HOH
193
3
HOH
HOH
332
E
HOH
194
3
HOH
HOH
333
E
HOH
195
3
HOH
HOH
334
E
HOH
196
3
HOH
HOH
335
E
HOH
197
3
HOH
HOH
336
E
HOH
200
3
HOH
HOH
337
E
HOH
201
3
HOH
HOH
338
E
HOH
202
3
HOH
HOH
339
E
HOH
203
3
HOH
HOH
340
E
HOH
205
3
HOH
HOH
341
E
HOH
206
3
HOH
HOH
342
E
HOH
207
3
HOH
HOH
343
E
HOH
208
3
HOH
HOH
344
E
HOH
209
3
HOH
HOH
345
E
HOH
210
3
HOH
HOH
346
E
HOH
211
3
HOH
HOH
347
E
HOH
212
3
HOH
HOH
348
E
HOH
213
3
HOH
HOH
349
E
HOH
214
3
HOH
HOH
350
E
HOH
215
3
HOH
HOH
351
E
HOH
300
3
HOH
HOH
352
E
HOH
301
3
HOH
HOH
353
E
HOH
302
3
HOH
HOH
354
E
HOH
303
3
HOH
HOH
355
E
HOH
304
3
HOH
HOH
356
E
HOH
306
3
HOH
HOH
357
E
HOH
307
3
HOH
HOH
358
E
HOH
308
3
HOH
HOH
359
E
HOH
309
3
HOH
HOH
360
E
HOH
310
3
HOH
HOH
361
E
HOH
315
3
HOH
HOH
362
E
HOH
317
3
HOH
HOH
363
E
HOH
319
3
HOH
HOH
364
E
HOH
321
3
HOH
HOH
365
E
HOH
323
3
HOH
HOH
366
E
HOH
324
3
HOH
HOH
367
E
HOH
325
3
HOH
HOH
368
E
HOH
329
3
HOH
HOH
369
E
HOH
330
3
HOH
HOH
370
E
HOH
331
3
HOH
HOH
371
E
HOH
333
3
HOH
HOH
372
E
HOH
334
3
HOH
HOH
373
E
HOH
336
3
HOH
HOH
374
E
HOH
337
3
HOH
HOH
375
E
HOH
339
3
HOH
HOH
376
E
HOH
340
3
HOH
HOH
377
E
HOH
341
3
HOH
HOH
378
E
HOH
342
3
HOH
HOH
379
E
HOH
345
3
HOH
HOH
380
E
HOH
347
3
HOH
HOH
381
E
HOH
349
3
HOH
HOH
382
E
HOH
350
3
HOH
HOH
383
E
HOH
351
3
HOH
HOH
384
E
HOH
352
3
HOH
HOH
385
E
HOH
353
3
HOH
HOH
386
E
HOH
354
3
HOH
HOH
387
E
HOH
355
3
HOH
HOH
388
E
HOH
356
3
HOH
HOH
389
E
HOH
358
3
HOH
HOH
390
E
HOH
359
3
HOH
HOH
391
E
HOH
360
3
HOH
HOH
392
E
HOH
361
3
HOH
HOH
393
E
HOH
362
3
HOH
HOH
394
E
HOH
363
3
HOH
HOH
395
E
HOH
364
3
HOH
HOH
396
E
HOH
381
3
HOH
HOH
397
E
HOH
382
3
HOH
HOH
398
E
HOH
383
3
HOH
HOH
399
E
HOH
384
3
HOH
HOH
400
E
HOH
385
3
HOH
HOH
401
E
HOH
401
3
HOH
HOH
402
E
HOH
402
3
HOH
HOH
403
E
HOH
403
3
HOH
HOH
404
E
HOH
404
3
HOH
HOH
405
E
HOH
405
3
HOH
HOH
406
E
HOH
406
3
HOH
HOH
407
E
HOH
407
3
HOH
HOH
408
E
HOH
408
3
HOH
HOH
409
E
HOH
409
3
HOH
HOH
410
E
HOH
410
3
HOH
HOH
411
E
HOH
411
3
HOH
HOH
412
E
HOH
412
3
HOH
HOH
413
E
HOH
413
3
HOH
HOH
414
E
HOH
414
3
HOH
HOH
415
E
HOH
415
3
HOH
HOH
416
E
HOH
416
3
HOH
HOH
417
E
HOH
417
3
HOH
HOH
418
E
HOH
418
3
HOH
HOH
419
E
HOH
419
3
HOH
HOH
420
E
HOH
420
3
HOH
HOH
421
E
HOH
421
3
HOH
HOH
422
E
HOH
423
3
HOH
HOH
423
E
HOH
424
3
HOH
HOH
424
E
HOH
425
3
HOH
HOH
425
E
HOH
426
3
HOH
HOH
426
E
HOH
427
3
HOH
HOH
427
E
HOH
428
3
HOH
HOH
428
E
HOH
429
3
HOH
HOH
429
E
HOH
430
3
HOH
HOH
430
E
HOH
431
3
HOH
HOH
431
E
HOH
432
3
HOH
HOH
432
E
HOH
433
3
HOH
HOH
433
E
HOH
434
3
HOH
HOH
434
E
HOH
435
3
HOH
HOH
435
E
HOH
436
3
HOH
HOH
436
E
HOH
437
3
HOH
HOH
437
E
HOH
438
3
HOH
HOH
438
E
HOH
439
3
HOH
HOH
439
E
HOH
440
3
HOH
HOH
440
E
HOH
441
3
HOH
HOH
441
E
HOH
442
3
HOH
HOH
442
E
HOH
443
3
HOH
HOH
443
E
HOH
444
3
HOH
HOH
444
E
HOH
445
3
HOH
HOH
445
E
HOH
446
3
HOH
HOH
446
E
HOH
447
3
HOH
HOH
447
E
HOH
448
3
HOH
HOH
448
E
HOH
449
3
HOH
HOH
449
E
HOH
450
3
HOH
HOH
450
E
HOH
451
3
HOH
HOH
451
E
HOH
452
3
HOH
HOH
452
E
HOH
453
3
HOH
HOH
453
E
HOH
454
3
HOH
HOH
454
E
HOH
455
3
HOH
HOH
455
E
HOH
456
3
HOH
HOH
456
E
HOH
500
3
HOH
HOH
457
E
HOH
501
3
HOH
HOH
458
E
HOH
503
3
HOH
HOH
459
E
HOH
504
3
HOH
HOH
460
E
HOH
505
3
HOH
HOH
461
E
HOH
506
3
HOH
HOH
462
E
HOH
507
3
HOH
HOH
463
E
HOH
108
3
HOH
HOH
108
I
HOH
148
3
HOH
HOH
148
I
HOH
348
3
HOH
HOH
348
I
HOH
422
3
HOH
HOH
422
I
HOH
502
3
HOH
HOH
502
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
ARG
20
n
5
ARG
20
E
ARG
21
n
6
ARG
21
E
ALA
22
n
7
ALA
22
E
ARG
23
n
8
ARG
23
E
PRO
24
n
9
PRO
24
E
HIS
25
n
10
HIS
25
E
ALA
26
n
11
ALA
26
E
TRP
27
n
12
TRP
27
E
PRO
28
n
13
PRO
28
E
PHE
29
n
14
PHE
29
E
MET
30
n
15
MET
30
E
VAL
31
n
16
VAL
31
E
SER
32
n
17
SER
32
E
LEU
33
n
18
LEU
33
E
GLN
34
n
19
GLN
34
E
LEU
35
n
20
LEU
35
E
ARG
36
n
21
ARG
36
E
GLY
38
n
22
GLY
38
E
GLY
39
n
23
GLY
39
E
HIS
40
n
24
HIS
40
E
PHE
41
n
25
PHE
41
E
CYS
42
n
26
CYS
42
E
GLY
43
n
27
GLY
43
E
ALA
44
n
28
ALA
44
E
THR
45
n
29
THR
45
E
LEU
46
n
30
LEU
46
E
ILE
47
n
31
ILE
47
E
ALA
48
n
32
ALA
48
E
PRO
49
n
33
PRO
49
E
ASN
50
n
34
ASN
50
E
PHE
51
n
35
PHE
51
E
VAL
52
n
36
VAL
52
E
MET
53
n
37
MET
53
E
SER
54
n
38
SER
54
E
ALA
55
n
39
ALA
55
E
ALA
56
n
40
ALA
56
E
HIS
57
n
41
HIS
57
E
CYS
58
n
42
CYS
58
E
VAL
59
n
43
VAL
59
E
ALA
60
n
44
ALA
60
E
ASN
61
n
45
ASN
61
E
VAL
62
n
46
VAL
62
E
ASN
62
n
47
A
ASN
62
E
VAL
62
n
48
B
VAL
62
E
ARG
63
n
49
ARG
63
E
ALA
64
n
50
ALA
64
E
VAL
65
n
51
VAL
65
E
ARG
65
n
52
A
ARG
65
E
VAL
66
n
53
VAL
66
E
VAL
67
n
54
VAL
67
E
LEU
68
n
55
LEU
68
E
GLY
69
n
56
GLY
69
E
ALA
70
n
57
ALA
70
E
HIS
71
n
58
HIS
71
E
ASN
72
n
59
ASN
72
E
LEU
73
n
60
LEU
73
E
SER
74
n
61
SER
74
E
ARG
75
n
62
ARG
75
E
ARG
76
n
63
ARG
76
E
GLU
77
n
64
GLU
77
E
PRO
78
n
65
PRO
78
E
THR
79
n
66
THR
79
E
ARG
80
n
67
ARG
80
E
GLN
81
n
68
GLN
81
E
VAL
82
n
69
VAL
82
E
PHE
83
n
70
PHE
83
E
ALA
84
n
71
ALA
84
E
VAL
85
n
72
VAL
85
E
GLN
86
n
73
GLN
86
E
ARG
87
n
74
ARG
87
E
ILE
88
n
75
ILE
88
E
PHE
89
n
76
PHE
89
E
GLU
90
n
77
GLU
90
E
ASP
91
n
78
ASP
91
E
GLY
92
n
79
GLY
92
E
TYR
94
n
80
TYR
94
E
ASP
95
n
81
ASP
95
E
PRO
98
n
82
PRO
98
E
VAL
99
n
83
VAL
99
E
ASN
99
n
84
A
ASN
99
E
LEU
99
n
85
B
LEU
99
E
LEU
100
n
86
LEU
100
E
ASN
101
n
87
ASN
101
E
ASP
102
n
88
ASP
102
E
ILE
103
n
89
ILE
103
E
VAL
104
n
90
VAL
104
E
ILE
105
n
91
ILE
105
E
LEU
106
n
92
LEU
106
E
GLN
107
n
93
GLN
107
E
LEU
108
n
94
LEU
108
E
ASN
109
n
95
ASN
109
E
GLY
110
n
96
GLY
110
E
SER
111
n
97
SER
111
E
ALA
112
n
98
ALA
112
E
THR
113
n
99
THR
113
E
ILE
114
n
100
ILE
114
E
ASN
115
n
101
ASN
115
E
ALA
116
n
102
ALA
116
E
ASN
117
n
103
ASN
117
E
VAL
118
n
104
VAL
118
E
GLN
119
n
105
GLN
119
E
VAL
120
n
106
VAL
120
E
ALA
121
n
107
ALA
121
E
GLN
122
n
108
GLN
122
E
LEU
123
n
109
LEU
123
E
PRO
124
n
110
PRO
124
E
ALA
125
n
111
ALA
125
E
GLN
126
n
112
GLN
126
E
GLY
127
n
113
GLY
127
E
ARG
128
n
114
ARG
128
E
ARG
129
n
115
ARG
129
E
LEU
130
n
116
LEU
130
E
GLY
131
n
117
GLY
131
E
ASN
132
n
118
ASN
132
E
GLY
133
n
119
GLY
133
E
VAL
134
n
120
VAL
134
E
GLN
135
n
121
GLN
135
E
CYS
136
n
122
CYS
136
E
LEU
137
n
123
LEU
137
E
ALA
138
n
124
ALA
138
E
MET
139
n
125
MET
139
E
GLY
140
n
126
GLY
140
E
TRP
141
n
127
TRP
141
E
GLY
142
n
128
GLY
142
E
LEU
143
n
129
LEU
143
E
LEU
144
n
130
LEU
144
E
GLY
145
n
131
GLY
145
E
ARG
147
n
132
ARG
147
E
ASN
148
n
133
ASN
148
E
ARG
149
n
134
ARG
149
E
GLY
150
n
135
GLY
150
E
ILE
151
n
136
ILE
151
E
ALA
152
n
137
ALA
152
E
SER
153
n
138
SER
153
E
VAL
154
n
139
VAL
154
E
LEU
155
n
140
LEU
155
E
GLN
156
n
141
GLN
156
E
GLU
157
n
142
GLU
157
E
LEU
158
n
143
LEU
158
E
ASN
159
n
144
ASN
159
E
VAL
160
n
145
VAL
160
E
THR
162
n
146
THR
162
E
VAL
163
n
147
VAL
163
E
VAL
164
n
148
VAL
164
E
THR
165
n
149
THR
165
E
SER
166
n
150
SER
166
E
LEU
167
n
151
LEU
167
E
CYS
168
n
152
CYS
168
E
ARG
177
n
153
ARG
177
E
ARG
178
n
154
ARG
178
E
SER
179
n
155
SER
179
E
ASN
180
n
156
ASN
180
E
VAL
181
n
157
VAL
181
E
CYS
182
n
158
CYS
182
E
THR
183
n
159
THR
183
E
LEU
184
n
160
LEU
184
E
VAL
185
n
161
VAL
185
E
ARG
186
n
162
ARG
186
E
GLY
186
n
163
A
GLY
186
E
ARG
187
n
164
ARG
187
E
GLN
188
n
165
GLN
188
E
ALA
188
n
166
A
ALA
188
E
GLY
189
n
167
GLY
189
E
VAL
190
n
168
VAL
190
E
CYS
191
n
169
CYS
191
E
PHE
192
n
170
PHE
192
E
GLY
193
n
171
GLY
193
E
ASP
194
n
172
ASP
194
E
SER
195
n
173
SER
195
E
GLY
196
n
174
GLY
196
E
SER
197
n
175
SER
197
E
PRO
198
n
176
PRO
198
E
LEU
199
n
177
LEU
199
E
VAL
200
n
178
VAL
200
E
CYS
201
n
179
CYS
201
E
ASN
204
n
180
ASN
204
E
GLY
205
n
181
GLY
205
E
LEU
208
n
182
LEU
208
E
ILE
209
n
183
ILE
209
E
HIS
210
n
184
HIS
210
E
GLY
211
n
185
GLY
211
E
ILE
212
n
186
ILE
212
E
ALA
213
n
187
ALA
213
E
SER
214
n
188
SER
214
E
PHE
215
n
189
PHE
215
E
VAL
216
n
190
VAL
216
E
ARG
217
n
191
A
ARG
217
E
GLY
218
n
192
GLY
218
E
GLY
219
n
193
GLY
219
E
CYS
220
n
194
CYS
220
E
ALA
221
n
195
ALA
221
E
SER
222
n
196
SER
222
E
GLY
222
n
197
A
GLY
222
E
LEU
223
n
198
LEU
223
E
TYR
224
n
199
TYR
224
E
PRO
225
n
200
PRO
225
E
ASP
226
n
201
ASP
226
E
ALA
227
n
202
ALA
227
E
PHE
228
n
203
PHE
228
E
ALA
229
n
204
ALA
229
E
PRO
230
n
205
PRO
230
E
VAL
231
n
206
VAL
231
E
ALA
232
n
207
ALA
232
E
GLN
233
n
208
GLN
233
E
PHE
234
n
209
PHE
234
E
VAL
235
n
210
VAL
235
E
ASN
236
n
211
ASN
236
E
TRP
237
n
212
TRP
237
E
ILE
238
n
213
ILE
238
E
ASP
239
n
214
ASP
239
E
SER
240
n
215
SER
240
E
ILE
241
n
216
ILE
241
E
ILE
242
n
217
ILE
242
E
GLN
243
n
218
GLN
243
E
MSU
1
n
1
MSU
1
I
ALA
2
n
2
ALA
2
I
ALA
3
n
3
ALA
3
I
PRO
4
n
4
PRO
4
I
ALA
5
n
5
ALV
5
I
0QE
6
n
6
0QE
6
I
author_defined_assembly
6
hexameric
I
ALV
5
(2S)-2-AMINOPROPANE-1,1-DIOL
B
ALV
5
ALA
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
-0.5000000000
0.8660254038
0.0000000000
-0.8660254038
-0.5000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
3_665
-x+y+1,-x+1,z
crystal symmetry operation
37.2650000000
64.5448733441
0.0000000000
-0.5000000000
-0.8660254038
0.0000000000
0.8660254038
-0.5000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
2_655
-y+1,x-y,z
crystal symmetry operation
74.5300000000
0.0000000000
0.0000000000
E
O
LEU
33
A
O
LEU
18
E
N
PHE
41
A
N
PHE
25
E
N
ILE
47
A
N
ILE
31
E
O
PHE
51
A
O
PHE
35
E
N
SER
54
A
N
SER
38
E
O
VAL
104
A
O
VAL
90
E
O
GLN
107
A
O
GLN
93
E
N
GLN
86
A
N
GLN
73
E
N
VAL
67
A
N
VAL
54
E
O
SER
32
A
O
SER
17
1
E
E
N
O
TYR
HOH
224
253
1.71
1
E
E
O
O
HOH
HOH
397
404
1.82
1
E
E
O
O
HOH
HOH
403
404
1.89
1
E
E
O
O
HOH
HOH
299
414
1.97
1
E
E
O
O
HOH
HOH
397
409
1.98
1
E
E
N
O
GLY
HOH
131
291
2.01
1
E
E
C
O
LEU
HOH
223
253
2.06
1
E
E
O
O
HOH
HOH
276
338
2.08
1
E
E
O
O
HOH
HOH
370
428
2.08
1
E
E
O
O
ALA
HOH
60
329
2.13
1
E
E
O
O
HOH
HOH
367
420
2.14
1
E
I
OG
O
SER
ALV
195
5
2.18
1
4.90
0.50
120.30
125.20
E
E
E
NE
CZ
NH1
ARG
ARG
ARG
20
20
20
N
1
-7.47
1.10
119.40
111.93
E
E
E
NH1
CZ
NH2
ARG
ARG
ARG
21
21
21
N
1
6.98
0.50
120.30
127.28
E
E
E
NE
CZ
NH2
ARG
ARG
ARG
21
21
21
N
1
15.01
2.00
110.90
125.91
E
E
E
CA
CB
CG2
ILE
ILE
ILE
47
47
47
N
1
11.23
1.60
110.90
122.13
E
E
E
CG1
CB
CG2
VAL
VAL
VAL
52
52
52
N
1
-14.95
2.20
111.50
96.55
E
E
E
N
CA
CB
VAL
VAL
VAL
59
59
59
N
1
10.58
1.60
110.90
121.48
E
E
E
CG1
CB
CG2
VAL
VAL
VAL
59
59
59
N
A
A
A
1
3.01
0.50
120.30
123.31
E
E
E
NE
CZ
NH2
ARG
ARG
ARG
65
65
65
N
1
5.40
0.50
120.30
125.70
E
E
E
NE
CZ
NH1
ARG
ARG
ARG
75
75
75
N
1
-3.01
0.50
120.30
117.29
E
E
E
NE
CZ
NH2
ARG
ARG
ARG
80
80
80
N
1
13.88
2.00
110.40
124.28
E
E
E
CB
CA
C
ASP
ASP
ASP
91
91
91
N
1
13.40
2.00
116.20
129.60
E
E
E
CA
C
N
ASP
ASP
GLY
91
91
92
Y
1
17.98
2.00
110.40
128.38
E
E
E
CB
CA
C
ARG
ARG
ARG
147
147
147
N
1
-3.66
0.50
120.30
116.64
E
E
E
NE
CZ
NH2
ARG
ARG
ARG
147
147
147
N
1
16.11
2.10
120.10
136.21
E
E
E
CA
C
O
ARG
ARG
ARG
147
147
147
N
1
25.15
2.50
121.70
146.85
E
E
E
C
N
CA
ARG
ASN
ASN
147
148
148
Y
1
10.57
1.50
110.90
121.47
E
E
E
CA
CB
CG1
VAL
VAL
VAL
154
154
154
N
1
13.57
1.50
110.90
124.47
E
E
E
CA
CB
CG1
VAL
VAL
VAL
200
200
200
N
1
-10.95
1.80
114.00
103.05
E
E
E
CA
CB
SG
CYS
CYS
CYS
220
220
220
N
1
25.49
2.70
111.00
136.49
E
E
E
N
CA
C
CYS
CYS
CYS
220
220
220
N
1
17.52
2.50
121.70
139.22
E
E
E
C
N
CA
CYS
ALA
ALA
220
221
221
Y
1
-16.58
2.70
111.20
94.62
E
E
E
CA
CB
OG
SER
SER
SER
222
222
222
N
1
E
E
N
CA
GLY
GLY
92
92
0.152
0.015
1.456
1.608
N
1
E
E
CD
OE1
GLU
GLU
157
157
-0.075
0.011
1.252
1.177
N
1
E
E
C
O
CYS
CYS
220
220
0.185
0.019
1.229
1.414
N
1
E
E
CA
CB
SER
SER
222
222
0.107
0.015
1.525
1.632
N
1
E
E
N
O
ALA
HOH
221
249
1.88
1_555
3_665
1
E
ARG
36
-110.46
-81.13
1
E
HIS
71
-133.69
-62.90
1
E
ASP
91
-119.57
-122.81
1
E
ARG
147
-112.98
65.17
1
E
ASN
148
177.39
127.27
1
E
ARG
149
86.03
125.11
1
E
SER
166
93.36
107.10
1
E
TYR
224
54.90
111.55
0.164
1.84
1
1.84
225
1892
0
0
1667
0.019
0.038
1.84
1HNE
1
refinement
PROLSQ
HUMAN NEUTROPHIL ELASTASE (HNE) (E.C.3.4.21.37) (ALSO REFERRED TO AS HUMAN LEUCOCYTE ELASTASE (HLE)) COMPLEX WITH METHOXYSUCCINYL-ALA-ALA-PRO-ALA CHLOROMETHYL KETONE (MSACK)
Structure of human neutrophil elastase in complex with a peptide chloromethyl ketone inhibitor at 1.84-angstroms resolution
1
N
N
2
N
N
3
N
N
3
N
N
E
ALA
55
A
ALA
39
HELX_P
E
VAL
59
A
VAL
43
5
1
5
E
ASN
62
A
ASN
47
HELX_P
E
ALA
64
A
ALA
50
5
2
4
A
E
PHE
234
A
PHE
209
HELX_P
E
GLN
243
A
GLN
218
1
3
10
disulf
2.016
E
CYS
42
A
SG
CYS
26
1_555
E
CYS
58
A
SG
CYS
42
1_555
disulf
1.992
E
CYS
136
A
SG
CYS
122
1_555
E
CYS
201
A
SG
CYS
179
1_555
disulf
1.998
E
CYS
168
A
SG
CYS
152
1_555
E
CYS
182
A
SG
CYS
158
1_555
disulf
2.035
E
CYS
191
A
SG
CYS
169
1_555
E
CYS
220
A
SG
CYS
194
1_555
covale
1.314
I
MSU
1
B
C1
MSU
1
1_555
I
ALA
2
B
N
ALA
2
1_555
covale
1.613
E
HIS
57
A
NE2
HIS
41
1_555
I
0QE
6
B
C1
0QE
6
1_555
covale
1.501
E
SER
195
A
OG
SER
173
1_555
I
ALV
5
B
C
ALV
5
1_555
covale
1.551
I
ALV
5
B
C
ALV
5
1_555
I
0QE
6
B
C1
0QE
6
1_555
covale
1.342
I
PRO
4
B
C
PRO
4
1_555
I
ALV
5
B
N
ALV
5
1_555
HYDROLASE/HYDROLASE INHIBITOR
HYDROLASE-HYDROLASE INHIBITOR COMPLEX
ELNE_HUMAN
UNP
1
1
P08246
MTLGRRLACLFLACVLPALLLGGTALASEIVGGRRARPHAWPFMVSLQLRGGHFCGATLIAPNFVMSAAHCVANVNVRAV
RVVLGAHNLSRREPTRQVFAVQRIFENGYDPVNLLNDIVILQLNGSATINANVQVAQLPAQGRRLGNGVQCLAMGWGLLG
RNRGIASVLQELNVTVVTSLCRRSNVCTLVRGRQAGVCFGDSGSPLVCNGLIHGIASFVRGGCASGLYPDAFAPVAQFVN
WIDSIIQRSEDNPCPHPRDPDPASRTH
1HNE
PDB
2
1HNE
(MSU)AAP(ALV)(0QE)
30
247
1HNE
16
243
P08246
E
1
1
218
1
6
1HNE
1
6
1HNE
I
2
1
6
1
ASN
CONFLICT
ASP
91
1HNE
E
P08246
UNP
107
78
7
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
E
MET
30
A
MET
15
E
GLN
34
A
GLN
19
E
HIS
40
A
HIS
24
E
ALA
48
A
ALA
32
E
PHE
51
A
PHE
35
E
SER
54
A
SER
38
E
VAL
104
A
VAL
90
E
LEU
108
A
LEU
94
E
GLN
81
A
GLN
68
E
GLU
90
A
GLU
77
E
MET
30
A
MET
15
E
GLN
34
A
GLN
19
BINDING SITE FOR CHAIN I OF METHOXYSUCCINYL-ALA-ALA-PRO-ALA CHLOROMETHYL KETONE
Software
12
E
HIS
57
A
HIS
41
12
1_555
E
PHE
192
A
PHE
170
12
3_665
E
GLY
193
A
GLY
171
12
1_555
E
SER
195
A
SER
173
12
1_555
E
SER
214
A
SER
188
12
1_555
E
PHE
215
A
PHE
189
12
1_555
E
VAL
216
A
VAL
190
12
1_555
E
GLY
218
A
GLY
192
12
1_555
E
TYR
224
A
TYR
199
12
1_555
I
HOH
108
D
HOH
12
1_555
I
HOH
148
D
HOH
12
1_555
I
HOH
502
D
HOH
12
1_555
173
P 63