0.019814
0.000000
0.000000
0.000000
0.017235
0.000000
0.000000
0.000000
0.010743
0.00000
0.00000
0.00000
Arkin, M.A.
Randal, M.
DeLano, W.L.
Hyde, J.
Luong, T.N.
Oslob, J.D.
Raphael, D.R.
Taylor, L.
Wang, J.
McDowell, R.S.
Wells, J.A.
Braisted, A.C.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
8
90.00
90.00
90.00
50.470
58.020
93.080
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
C3 H7 N O2 S
121.158
y
CYSTEINE
L-peptide linking
C26 H30 N4 O3
446.541
2-[3-METHYL-4-(N-METHYL-GUANIDINO)-BUTYRYLAMINO]-3-(4-PHENYLETHYNYL-PHENYL)-PROPIONIC ACID METHYL ESTER
(R)-N-[2-[1-(AMINOIMINOMETHYL)-3-PIPERIDINYL]-1-OXOETHYL]-4-(PHENYLETHYNYL)-L-PHENYLALANINE METHYL ESTER
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
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
100
1603
1608
10.1073/pnas.252756299
12582206
Binding of small molecules to an adaptive
protein-protein interface
2003
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
mirrors
IMAGE PLATE
2000-02-23
RIGAKU RAXIS IV
yale mirrors
SINGLE WAVELENGTH
M
x-ray
1
1.5418
1.0
1.5418
ROTATING ANODE
RIGAKU
15435.979
interleukin-2
2
man
polymer
446.541
2-[3-METHYL-4-(N-METHYL-GUANIDINO)-BUTYRYLAMINO]-3-(4-PHENYLETHYNYL-PHENYL)-PROPIONIC ACID METHYL ESTER
2
syn
non-polymer
18.015
water
214
nat
water
IL-2, T-CELL GROWTH FACTOR, TCGF, ALDESLEUKIN
no
no
APTSSSTKKTQLQLEHLLLDLQMILNGINNYKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHL
RPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITFCQSIISTLT
APTSSSTKKTQLQLEHLLLDLQMILNGINNYKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHL
RPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITFCQSIISTLT
A,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
human
Homo
Escherichia
Escherichia coli
sample
9606
Homo sapiens
511693
Escherichia coli BL21
BL21
plasmid
pRSET
1
2.21
44.25
VAPOR DIFFUSION, HANGING DROP
7.0
pH 7.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K
298
software
repository
Initial release
Version format compliance
Version format compliance
Refinement description
1
0
2002-07-31
1
1
2008-04-28
1
2
2011-07-13
1
3
2017-10-11
1m47 is the Crystal Structure of Human Interleukin-2
1m49 is the crystal structure of human interleukin-2 complexed with SP-1985
1m4a is the crystal structure of human interleukin-2 Y31C covalently modified at C31 with (1H-Indol-3-yl)-(2-mercapto-ethoxyimino)-acetic acid
1m4b is the crystal structure of human interleukin-2 K43C covalently modified at C43 with 2-[2-(2-Cyclohexyl-2-guanidino-acetylamino)-acetylamino]-N-(3-mercapto-propyl)-propionamide
1M4C is the crystal structure of human interleukin-2
RCSB
Y
RCSB
2002-07-02
REL
REL
FRG
2-[3-METHYL-4-(N-METHYL-GUANIDINO)-BUTYRYLAMINO]-3-(4-PHENYLETHYNYL-PHENYL)-PROPIONIC ACID METHYL ESTER
HOH
water
FRG
301
2
FRG
FRG
301
A
FRG
302
2
FRG
FRG
302
B
HOH
1
3
HOH
HOH
302
A
HOH
4
3
HOH
HOH
303
A
HOH
6
3
HOH
HOH
304
A
HOH
7
3
HOH
HOH
305
A
HOH
9
3
HOH
HOH
306
A
HOH
11
3
HOH
HOH
307
A
HOH
12
3
HOH
HOH
308
A
HOH
13
3
HOH
HOH
309
A
HOH
14
3
HOH
HOH
310
A
HOH
16
3
HOH
HOH
311
A
HOH
17
3
HOH
HOH
312
A
HOH
18
3
HOH
HOH
313
A
HOH
19
3
HOH
HOH
314
A
HOH
20
3
HOH
HOH
315
A
HOH
21
3
HOH
HOH
316
A
HOH
23
3
HOH
HOH
317
A
HOH
24
3
HOH
HOH
318
A
HOH
29
3
HOH
HOH
319
A
HOH
31
3
HOH
HOH
320
A
HOH
33
3
HOH
HOH
321
A
HOH
34
3
HOH
HOH
322
A
HOH
36
3
HOH
HOH
323
A
HOH
37
3
HOH
HOH
324
A
HOH
38
3
HOH
HOH
325
A
HOH
39
3
HOH
HOH
326
A
HOH
40
3
HOH
HOH
327
A
HOH
41
3
HOH
HOH
328
A
HOH
42
3
HOH
HOH
329
A
HOH
44
3
HOH
HOH
330
A
HOH
46
3
HOH
HOH
331
A
HOH
47
3
HOH
HOH
332
A
HOH
49
3
HOH
HOH
333
A
HOH
50
3
HOH
HOH
334
A
HOH
54
3
HOH
HOH
335
A
HOH
55
3
HOH
HOH
336
A
HOH
56
3
HOH
HOH
337
A
HOH
57
3
HOH
HOH
338
A
HOH
58
3
HOH
HOH
339
A
HOH
61
3
HOH
HOH
340
A
HOH
63
3
HOH
HOH
341
A
HOH
64
3
HOH
HOH
342
A
HOH
65
3
HOH
HOH
343
A
HOH
67
3
HOH
HOH
344
A
HOH
68
3
HOH
HOH
345
A
HOH
70
3
HOH
HOH
346
A
HOH
72
3
HOH
HOH
347
A
HOH
75
3
HOH
HOH
348
A
HOH
81
3
HOH
HOH
349
A
HOH
83
3
HOH
HOH
350
A
HOH
86
3
HOH
HOH
351
A
HOH
89
3
HOH
HOH
352
A
HOH
91
3
HOH
HOH
353
A
HOH
92
3
HOH
HOH
354
A
HOH
93
3
HOH
HOH
355
A
HOH
97
3
HOH
HOH
356
A
HOH
99
3
HOH
HOH
357
A
HOH
100
3
HOH
HOH
358
A
HOH
101
3
HOH
HOH
359
A
HOH
102
3
HOH
HOH
360
A
HOH
103
3
HOH
HOH
361
A
HOH
104
3
HOH
HOH
362
A
HOH
105
3
HOH
HOH
363
A
HOH
106
3
HOH
HOH
364
A
HOH
107
3
HOH
HOH
365
A
HOH
108
3
HOH
HOH
366
A
HOH
110
3
HOH
HOH
367
A
HOH
114
3
HOH
HOH
368
A
HOH
116
3
HOH
HOH
369
A
HOH
117
3
HOH
HOH
370
A
HOH
118
3
HOH
HOH
371
A
HOH
120
3
HOH
HOH
372
A
HOH
121
3
HOH
HOH
373
A
HOH
123
3
HOH
HOH
374
A
HOH
130
3
HOH
HOH
375
A
HOH
131
3
HOH
HOH
376
A
HOH
136
3
HOH
HOH
377
A
HOH
138
3
HOH
HOH
378
A
HOH
139
3
HOH
HOH
379
A
HOH
140
3
HOH
HOH
380
A
HOH
142
3
HOH
HOH
381
A
HOH
143
3
HOH
HOH
382
A
HOH
144
3
HOH
HOH
383
A
HOH
147
3
HOH
HOH
384
A
HOH
148
3
HOH
HOH
385
A
HOH
154
3
HOH
HOH
386
A
HOH
155
3
HOH
HOH
387
A
HOH
157
3
HOH
HOH
388
A
HOH
158
3
HOH
HOH
389
A
HOH
159
3
HOH
HOH
390
A
HOH
160
3
HOH
HOH
391
A
HOH
161
3
HOH
HOH
392
A
HOH
163
3
HOH
HOH
393
A
HOH
165
3
HOH
HOH
394
A
HOH
167
3
HOH
HOH
395
A
HOH
169
3
HOH
HOH
396
A
HOH
170
3
HOH
HOH
397
A
HOH
171
3
HOH
HOH
398
A
HOH
173
3
HOH
HOH
399
A
HOH
176
3
HOH
HOH
400
A
HOH
180
3
HOH
HOH
401
A
HOH
182
3
HOH
HOH
402
A
HOH
183
3
HOH
HOH
403
A
HOH
185
3
HOH
HOH
404
A
HOH
189
3
HOH
HOH
405
A
HOH
192
3
HOH
HOH
406
A
HOH
193
3
HOH
HOH
407
A
HOH
195
3
HOH
HOH
408
A
HOH
197
3
HOH
HOH
409
A
HOH
199
3
HOH
HOH
410
A
HOH
203
3
HOH
HOH
411
A
HOH
204
3
HOH
HOH
412
A
HOH
208
3
HOH
HOH
413
A
HOH
214
3
HOH
HOH
414
A
HOH
2
3
HOH
HOH
303
B
HOH
3
3
HOH
HOH
304
B
HOH
5
3
HOH
HOH
305
B
HOH
8
3
HOH
HOH
306
B
HOH
10
3
HOH
HOH
307
B
HOH
15
3
HOH
HOH
308
B
HOH
22
3
HOH
HOH
309
B
HOH
25
3
HOH
HOH
310
B
HOH
26
3
HOH
HOH
311
B
HOH
27
3
HOH
HOH
312
B
HOH
28
3
HOH
HOH
313
B
HOH
30
3
HOH
HOH
314
B
HOH
32
3
HOH
HOH
315
B
HOH
35
3
HOH
HOH
316
B
HOH
43
3
HOH
HOH
317
B
HOH
45
3
HOH
HOH
318
B
HOH
48
3
HOH
HOH
319
B
HOH
51
3
HOH
HOH
320
B
HOH
52
3
HOH
HOH
321
B
HOH
53
3
HOH
HOH
322
B
HOH
59
3
HOH
HOH
323
B
HOH
60
3
HOH
HOH
324
B
HOH
62
3
HOH
HOH
325
B
HOH
66
3
HOH
HOH
326
B
HOH
69
3
HOH
HOH
327
B
HOH
71
3
HOH
HOH
328
B
HOH
73
3
HOH
HOH
329
B
HOH
74
3
HOH
HOH
330
B
HOH
76
3
HOH
HOH
331
B
HOH
77
3
HOH
HOH
332
B
HOH
78
3
HOH
HOH
333
B
HOH
79
3
HOH
HOH
334
B
HOH
80
3
HOH
HOH
335
B
HOH
82
3
HOH
HOH
336
B
HOH
84
3
HOH
HOH
337
B
HOH
85
3
HOH
HOH
338
B
HOH
87
3
HOH
HOH
339
B
HOH
88
3
HOH
HOH
340
B
HOH
90
3
HOH
HOH
341
B
HOH
94
3
HOH
HOH
342
B
HOH
95
3
HOH
HOH
343
B
HOH
96
3
HOH
HOH
344
B
HOH
98
3
HOH
HOH
345
B
HOH
109
3
HOH
HOH
346
B
HOH
111
3
HOH
HOH
347
B
HOH
112
3
HOH
HOH
348
B
HOH
113
3
HOH
HOH
349
B
HOH
115
3
HOH
HOH
350
B
HOH
119
3
HOH
HOH
351
B
HOH
122
3
HOH
HOH
352
B
HOH
124
3
HOH
HOH
353
B
HOH
125
3
HOH
HOH
354
B
HOH
126
3
HOH
HOH
355
B
HOH
127
3
HOH
HOH
356
B
HOH
128
3
HOH
HOH
357
B
HOH
129
3
HOH
HOH
358
B
HOH
132
3
HOH
HOH
359
B
HOH
133
3
HOH
HOH
360
B
HOH
134
3
HOH
HOH
361
B
HOH
135
3
HOH
HOH
362
B
HOH
137
3
HOH
HOH
363
B
HOH
141
3
HOH
HOH
364
B
HOH
145
3
HOH
HOH
365
B
HOH
146
3
HOH
HOH
366
B
HOH
149
3
HOH
HOH
367
B
HOH
150
3
HOH
HOH
368
B
HOH
151
3
HOH
HOH
369
B
HOH
152
3
HOH
HOH
370
B
HOH
153
3
HOH
HOH
371
B
HOH
156
3
HOH
HOH
372
B
HOH
162
3
HOH
HOH
373
B
HOH
164
3
HOH
HOH
374
B
HOH
166
3
HOH
HOH
375
B
HOH
168
3
HOH
HOH
376
B
HOH
172
3
HOH
HOH
377
B
HOH
174
3
HOH
HOH
378
B
HOH
175
3
HOH
HOH
379
B
HOH
177
3
HOH
HOH
380
B
HOH
178
3
HOH
HOH
381
B
HOH
179
3
HOH
HOH
382
B
HOH
181
3
HOH
HOH
383
B
HOH
184
3
HOH
HOH
384
B
HOH
186
3
HOH
HOH
385
B
HOH
187
3
HOH
HOH
386
B
HOH
188
3
HOH
HOH
387
B
HOH
190
3
HOH
HOH
388
B
HOH
191
3
HOH
HOH
389
B
HOH
194
3
HOH
HOH
390
B
HOH
196
3
HOH
HOH
391
B
HOH
198
3
HOH
HOH
392
B
HOH
200
3
HOH
HOH
393
B
HOH
201
3
HOH
HOH
394
B
HOH
202
3
HOH
HOH
395
B
HOH
205
3
HOH
HOH
396
B
HOH
206
3
HOH
HOH
397
B
HOH
207
3
HOH
HOH
398
B
HOH
209
3
HOH
HOH
399
B
HOH
210
3
HOH
HOH
400
B
HOH
211
3
HOH
HOH
401
B
HOH
212
3
HOH
HOH
402
B
HOH
213
3
HOH
HOH
403
B
n
1
1
A
n
2
2
A
n
3
3
A
SER
4
n
4
SER
4
A
SER
5
n
5
SER
5
A
SER
6
n
6
SER
6
A
THR
7
n
7
THR
7
A
LYS
8
n
8
LYS
8
A
LYS
9
n
9
LYS
9
A
THR
10
n
10
THR
10
A
GLN
11
n
11
GLN
11
A
LEU
12
n
12
LEU
12
A
GLN
13
n
13
GLN
13
A
LEU
14
n
14
LEU
14
A
GLU
15
n
15
GLU
15
A
HIS
16
n
16
HIS
16
A
LEU
17
n
17
LEU
17
A
LEU
18
n
18
LEU
18
A
LEU
19
n
19
LEU
19
A
ASP
20
n
20
ASP
20
A
LEU
21
n
21
LEU
21
A
GLN
22
n
22
GLN
22
A
MET
23
n
23
MET
23
A
ILE
24
n
24
ILE
24
A
LEU
25
n
25
LEU
25
A
ASN
26
n
26
ASN
26
A
GLY
27
n
27
GLY
27
A
ILE
28
n
28
ILE
28
A
ASN
29
n
29
ASN
29
A
ASN
30
n
30
ASN
30
A
TYR
31
n
31
TYR
31
A
LYS
32
n
32
LYS
32
A
ASN
33
n
33
ASN
33
A
PRO
34
n
34
PRO
34
A
LYS
35
n
35
LYS
35
A
LEU
36
n
36
LEU
36
A
THR
37
n
37
THR
37
A
ARG
38
n
38
ARG
38
A
MET
39
n
39
MET
39
A
LEU
40
n
40
LEU
40
A
THR
41
n
41
THR
41
A
PHE
42
n
42
PHE
42
A
LYS
43
n
43
LYS
43
A
PHE
44
n
44
PHE
44
A
TYR
45
n
45
TYR
45
A
MET
46
n
46
MET
46
A
PRO
47
n
47
PRO
47
A
LYS
48
n
48
LYS
48
A
LYS
49
n
49
LYS
49
A
ALA
50
n
50
ALA
50
A
THR
51
n
51
THR
51
A
GLU
52
n
52
GLU
52
A
LEU
53
n
53
LEU
53
A
LYS
54
n
54
LYS
54
A
HIS
55
n
55
HIS
55
A
LEU
56
n
56
LEU
56
A
GLN
57
n
57
GLN
57
A
CYS
58
n
58
CYS
58
A
LEU
59
n
59
LEU
59
A
GLU
60
n
60
GLU
60
A
GLU
61
n
61
GLU
61
A
GLU
62
n
62
GLU
62
A
LEU
63
n
63
LEU
63
A
LYS
64
n
64
LYS
64
A
PRO
65
n
65
PRO
65
A
LEU
66
n
66
LEU
66
A
GLU
67
n
67
GLU
67
A
GLU
68
n
68
GLU
68
A
VAL
69
n
69
VAL
69
A
LEU
70
n
70
LEU
70
A
ASN
71
n
71
ASN
71
A
LEU
72
n
72
LEU
72
A
ALA
73
n
73
ALA
73
A
GLN
74
n
74
GLN
74
A
n
75
75
A
n
76
76
A
n
77
77
A
n
78
78
A
n
79
79
A
n
80
80
A
ALA
81
n
81
ARG
81
A
PRO
82
n
82
PRO
82
A
ARG
83
n
83
ARG
83
A
ASP
84
n
84
ASP
84
A
LEU
85
n
85
LEU
85
A
ILE
86
n
86
ILE
86
A
SER
87
n
87
SER
87
A
ASN
88
n
88
ASN
88
A
ILE
89
n
89
ILE
89
A
ASN
90
n
90
ASN
90
A
VAL
91
n
91
VAL
91
A
ILE
92
n
92
ILE
92
A
VAL
93
n
93
VAL
93
A
LEU
94
n
94
LEU
94
A
GLU
95
n
95
GLU
95
A
LEU
96
n
96
LEU
96
A
LYS
97
n
97
LYS
97
A
GLY
98
n
98
GLY
98
A
SER
99
n
99
SER
99
A
GLU
100
n
100
GLU
100
A
THR
101
n
101
THR
101
A
THR
102
n
102
THR
102
A
PHE
103
n
103
PHE
103
A
MET
104
n
104
MET
104
A
CYS
105
n
105
CYS
105
A
GLU
106
n
106
GLU
106
A
TYR
107
n
107
TYR
107
A
ALA
108
n
108
ALA
108
A
ASP
109
n
109
ASP
109
A
GLU
110
n
110
GLU
110
A
THR
111
n
111
THR
111
A
ALA
112
n
112
ALA
112
A
THR
113
n
113
THR
113
A
ILE
114
n
114
ILE
114
A
VAL
115
n
115
VAL
115
A
GLU
116
n
116
GLU
116
A
PHE
117
n
117
PHE
117
A
LEU
118
n
118
LEU
118
A
ASN
119
n
119
ASN
119
A
ARG
120
n
120
ARG
120
A
TRP
121
n
121
TRP
121
A
ILE
122
n
122
ILE
122
A
THR
123
n
123
THR
123
A
PHE
124
n
124
PHE
124
A
CYS
125
n
125
CYS
125
A
GLN
126
n
126
GLN
126
A
SER
127
n
127
SER
127
A
ILE
128
n
128
ILE
128
A
ILE
129
n
129
ILE
129
A
SER
130
n
130
SER
130
A
THR
131
n
131
THR
131
A
LEU
132
n
132
LEU
132
A
n
133
133
A
n
1
1
B
n
2
2
B
n
3
3
B
SER
4
n
4
SER
4
B
SER
5
n
5
SER
5
B
SER
6
n
6
SER
6
B
THR
7
n
7
THR
7
B
LYS
8
n
8
LYS
8
B
LYS
9
n
9
LYS
9
B
THR
10
n
10
THR
10
B
GLN
11
n
11
GLN
11
B
LEU
12
n
12
LEU
12
B
GLN
13
n
13
GLN
13
B
LEU
14
n
14
LEU
14
B
GLU
15
n
15
GLU
15
B
HIS
16
n
16
HIS
16
B
LEU
17
n
17
LEU
17
B
LEU
18
n
18
LEU
18
B
LEU
19
n
19
LEU
19
B
ASP
20
n
20
ASP
20
B
LEU
21
n
21
LEU
21
B
GLN
22
n
22
GLN
22
B
MET
23
n
23
MET
23
B
ILE
24
n
24
ILE
24
B
LEU
25
n
25
LEU
25
B
ASN
26
n
26
ASN
26
B
GLY
27
n
27
GLY
27
B
ILE
28
n
28
ILE
28
B
ASN
29
n
29
ASN
29
B
ASN
30
n
30
ASN
30
B
TYR
31
n
31
TYR
31
B
LYS
32
n
32
LYS
32
B
ASN
33
n
33
ASN
33
B
PRO
34
n
34
PRO
34
B
LYS
35
n
35
LYS
35
B
LEU
36
n
36
LEU
36
B
THR
37
n
37
THR
37
B
ARG
38
n
38
ARG
38
B
MET
39
n
39
MET
39
B
LEU
40
n
40
LEU
40
B
THR
41
n
41
THR
41
B
PHE
42
n
42
PHE
42
B
LYS
43
n
43
LYS
43
B
PHE
44
n
44
PHE
44
B
TYR
45
n
45
TYR
45
B
MET
46
n
46
MET
46
B
PRO
47
n
47
PRO
47
B
LYS
48
n
48
LYS
48
B
LYS
49
n
49
LYS
49
B
ALA
50
n
50
ALA
50
B
THR
51
n
51
THR
51
B
GLU
52
n
52
GLU
52
B
LEU
53
n
53
LEU
53
B
LYS
54
n
54
LYS
54
B
HIS
55
n
55
HIS
55
B
LEU
56
n
56
LEU
56
B
GLN
57
n
57
GLN
57
B
CYS
58
n
58
CYS
58
B
LEU
59
n
59
LEU
59
B
GLU
60
n
60
GLU
60
B
GLU
61
n
61
GLU
61
B
GLU
62
n
62
GLU
62
B
LEU
63
n
63
LEU
63
B
LYS
64
n
64
LYS
64
B
PRO
65
n
65
PRO
65
B
LEU
66
n
66
LEU
66
B
GLU
67
n
67
GLU
67
B
GLU
68
n
68
GLU
68
B
VAL
69
n
69
VAL
69
B
LEU
70
n
70
LEU
70
B
ASN
71
n
71
ASN
71
B
LEU
72
n
72
LEU
72
B
ALA
73
n
73
ALA
73
B
GLN
74
n
74
GLN
74
B
SER
75
n
75
SER
75
B
LYS
76
n
76
LYS
76
B
ASN
77
n
77
ASN
77
B
PHE
78
n
78
PHE
78
B
n
79
79
B
n
80
80
B
n
81
81
B
n
82
82
B
ARG
83
n
83
ARG
83
B
ASP
84
n
84
ASP
84
B
LEU
85
n
85
LEU
85
B
ILE
86
n
86
ILE
86
B
SER
87
n
87
SER
87
B
ASN
88
n
88
ASN
88
B
ILE
89
n
89
ILE
89
B
ASN
90
n
90
ASN
90
B
VAL
91
n
91
VAL
91
B
ILE
92
n
92
ILE
92
B
VAL
93
n
93
VAL
93
B
LEU
94
n
94
LEU
94
B
GLU
95
n
95
GLU
95
B
LEU
96
n
96
LEU
96
B
LYS
97
n
97
LYS
97
B
GLY
98
n
98
GLY
98
B
SER
99
n
99
SER
99
B
GLU
100
n
100
GLU
100
B
THR
101
n
101
THR
101
B
THR
102
n
102
THR
102
B
PHE
103
n
103
PHE
103
B
MET
104
n
104
MET
104
B
CYS
105
n
105
CYS
105
B
GLU
106
n
106
GLU
106
B
TYR
107
n
107
TYR
107
B
ALA
108
n
108
ALA
108
B
ASP
109
n
109
ASP
109
B
GLU
110
n
110
GLU
110
B
THR
111
n
111
THR
111
B
ALA
112
n
112
ALA
112
B
THR
113
n
113
THR
113
B
ILE
114
n
114
ILE
114
B
VAL
115
n
115
VAL
115
B
GLU
116
n
116
GLU
116
B
PHE
117
n
117
PHE
117
B
LEU
118
n
118
LEU
118
B
ASN
119
n
119
ASN
119
B
ARG
120
n
120
ARG
120
B
TRP
121
n
121
TRP
121
B
ILE
122
n
122
ILE
122
B
THR
123
n
123
THR
123
B
PHE
124
n
124
PHE
124
B
CYS
125
n
125
CYS
125
B
GLN
126
n
126
GLN
126
B
SER
127
n
127
SER
127
B
ILE
128
n
128
ILE
128
B
ILE
129
n
129
ILE
129
B
SER
130
n
130
SER
130
B
THR
131
n
131
THR
131
B
LEU
132
n
132
LEU
132
B
THR
133
n
133
THR
133
B
author_defined_assembly
1
monomeric
author_defined_assembly
1
monomeric
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
A
CG
ARG
81
A
CG
ARG
81
1
Y
1
A
CD
ARG
81
A
CD
ARG
81
1
Y
1
A
NE
ARG
81
A
NE
ARG
81
1
Y
1
A
CZ
ARG
81
A
CZ
ARG
81
1
Y
1
A
NH1
ARG
81
A
NH1
ARG
81
1
Y
1
A
NH2
ARG
81
A
NH2
ARG
81
1
Y
1
A
ALA
1
A
ALA
1
1
Y
1
A
PRO
2
A
PRO
2
1
Y
1
A
THR
3
A
THR
3
1
Y
1
A
SER
75
A
SER
75
1
Y
1
A
LYS
76
A
LYS
76
1
Y
1
A
ASN
77
A
ASN
77
1
Y
1
A
PHE
78
A
PHE
78
1
Y
1
A
HIS
79
A
HIS
79
1
Y
1
A
LEU
80
A
LEU
80
1
Y
1
A
THR
133
A
THR
133
1
Y
1
B
ALA
1
B
ALA
1
1
Y
1
B
PRO
2
B
PRO
2
1
Y
1
B
THR
3
B
THR
3
1
Y
1
B
HIS
79
B
HIS
79
1
Y
1
B
LEU
80
B
LEU
80
1
Y
1
B
ARG
81
B
ARG
81
1
Y
1
B
PRO
82
B
PRO
82
1
Y
1
B
B
NH2
CD2
ARG
TYR
83
107
1.78
1_555
3_555
1
A
A
NH2
OE1
ARG
GLU
83
110
2.14
1_555
4_455
1
A
ALA
73
-104.29
46.03
1
B
ASP
84
-107.73
62.51
1
B
LEU
132
-108.53
61.76
33.028
0.84
0.00
0.00
0.71
0.00
-1.55
0.954
0.903
0.26891
0.19716
0.20046
0.20046
1.95
10.00
974
19081
19081
4.9
98.41
RANDOM
1
isotropic
THROUGHOUT
0
0
MOLECULAR REPLACEMENT
0.190
0.186
0.80
0.80
1.40
MAXIMUM LIKELIHOOD
MASK
1.95
10.00
214
2305
66
0
2025
0.008
0.022
2125
1.422
2.016
2864
2.778
5.000
245
0.121
0.200
342
0.005
0.020
1501
0.220
0.200
1082
0.112
0.200
121
0.341
0.200
89
0.286
0.200
20
3.259
2.500
1244
5.027
5.000
2030
3.744
2.500
881
5.354
5.000
834
0.389
0.303
2.016
95
1751
1846
15
94.3
23.7
1.95
10.0
1M48
20214
20214
0
0
0.059
0.059
1
11.4
2.65
98.1
0.357
1.95
2.016
3.1
1846
0.357
2.4
94.3
data reduction
d*TREK
phasing
AMoRE
refinement
REFMAC
5.1.19
data scaling
d*TREK
interleukin-2
Crystal Structure of Human IL-2 Complexed with (R)-N-[2-[1-(Aminoiminomethyl)-3-piperidinyl]-1-oxoethyl]-4-(phenylethynyl)-L-phenylalanine methyl ester
1
N
N
1
N
N
2
N
N
2
N
N
3
N
N
3
N
N
A
SER
5
A
SER
5
HELX_P
A
ASN
29
A
ASN
29
1
1
25
A
LYS
32
A
LYS
32
HELX_P
A
LEU
40
A
LEU
40
1
2
9
A
GLU
52
A
GLU
52
HELX_P
A
HIS
55
A
HIS
55
5
3
4
A
LEU
56
A
LEU
56
HELX_P
A
GLU
61
A
GLU
61
1
4
6
A
GLU
62
A
GLU
62
HELX_P
A
ALA
73
A
ALA
73
1
5
12
A
ARG
81
A
ARG
81
HELX_P
A
GLY
98
A
GLY
98
1
6
18
A
THR
113
A
THR
113
HELX_P
A
THR
131
A
THR
131
1
7
19
B
SER
4
B
SER
4
HELX_P
B
ASN
30
B
ASN
30
1
8
27
B
PRO
34
B
PRO
34
HELX_P
B
LEU
40
B
LEU
40
1
9
7
B
GLU
52
B
GLU
52
HELX_P
B
HIS
55
B
HIS
55
5
10
4
B
LEU
56
B
LEU
56
HELX_P
B
GLU
61
B
GLU
61
1
11
6
B
GLU
62
B
GLU
62
HELX_P
B
SER
75
B
SER
75
1
12
14
B
ASP
84
B
ASP
84
HELX_P
B
GLY
98
B
GLY
98
1
13
15
B
THR
113
B
THR
113
HELX_P
B
LEU
132
B
LEU
132
1
14
20
disulf
2.066
A
CYS
58
A
SG
CYS
58
1_555
A
CYS
105
A
SG
CYS
105
1_555
disulf
2.036
B
CYS
58
B
SG
CYS
58
1_555
B
CYS
105
B
SG
CYS
105
1_555
CYTOKINE
interleukin-2, four-helix bundle, small molecule complex, CYTOKINE
IL2_HUMAN
UNP
1
21
P60568
APTSSSTKKTQLQLEHLLLDLQMILNGINNYKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHL
RPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITFCQSIISTLT
21
153
1M48
1
133
P60568
A
1
1
133
21
153
1M48
1
133
P60568
B
1
1
133
BINDING SITE FOR RESIDUE FRG A 301
Software
16
BINDING SITE FOR RESIDUE FRG B 302
Software
20
A
LYS
35
A
LYS
35
16
1_555
A
ARG
38
A
ARG
38
16
1_555
A
MET
39
A
MET
39
16
1_555
A
THR
41
A
THR
41
16
1_555
A
PHE
42
A
PHE
42
16
1_555
A
LYS
43
A
LYS
43
16
1_555
A
PHE
44
A
PHE
44
16
1_555
A
TYR
45
A
TYR
45
16
1_555
A
THR
51
A
THR
51
16
4_455
A
GLU
62
A
GLU
62
16
1_555
A
PRO
65
A
PRO
65
16
1_555
A
LEU
72
A
LEU
72
16
1_555
A
ALA
73
A
ALA
73
16
1_555
A
SER
127
A
SER
127
16
4_455
A
HOH
307
E
HOH
16
4_455
A
HOH
357
E
HOH
16
1_555
A
GLU
60
A
GLU
60
20
3_545
A
LYS
64
A
LYS
64
20
3_545
A
GLU
67
A
GLU
67
20
3_545
A
ARG
83
A
ARG
83
20
3_545
A
ILE
86
A
ILE
86
20
3_545
A
SER
87
A
SER
87
20
3_545
A
ASN
90
A
ASN
90
20
3_545
A
VAL
91
A
VAL
91
20
3_545
B
LYS
35
B
LYS
35
20
1_555
B
THR
41
B
THR
41
20
1_555
B
PHE
42
B
PHE
42
20
1_555
B
LYS
43
B
LYS
43
20
1_555
B
PHE
44
B
PHE
44
20
1_555
B
TYR
45
B
TYR
45
20
1_555
B
GLU
62
B
GLU
62
20
1_555
B
PRO
65
B
PRO
65
20
1_555
B
LEU
72
B
LEU
72
20
1_555
B
HOH
335
F
HOH
20
1_555
B
HOH
336
F
HOH
20
1_555
B
HOH
375
F
HOH
20
1_555
19
P 21 21 21