0.020342
0.000000
0.000000
0.000000
0.011716
0.000000
0.000000
0.000000
0.031536
0.00000
0.00000
0.00000
Hyde, J.
Braisted, A.C.
Randal, M.
Arkin, M.R.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
4
90.00
90.00
90.00
49.160
85.350
31.710
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
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
C14 H16 N2 O S
260.355
3-MERCAPTO-1-(1,3,4,9-TETRAHYDRO-B-CARBOLIN-2-YL)-PROPAN-1-ONE
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
O4 S -2
96.063
SULFATE ION
non-polymer
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
N
1
N
N
N
2
S
C
N
3
N
C
N
4
N
O
N
5
N
C
N
6
N
O
N
7
N
H
N
8
N
H
N
9
N
H
N
10
N
H
N
11
N
H
N
12
N
H
N
13
N
H
N
14
N
N
N
15
S
C
N
16
N
C
N
17
N
O
N
18
N
C
N
19
N
C
N
20
N
C
N
21
N
N
N
22
N
C
N
23
N
N
N
24
N
N
N
25
N
O
N
26
N
H
N
27
N
H
N
28
N
H
N
29
N
H
N
30
N
H
N
31
N
H
N
32
N
H
N
33
N
H
N
34
N
H
N
35
N
H
N
36
N
H
N
37
N
H
N
38
N
H
N
39
N
H
N
40
N
H
N
41
N
N
N
42
S
C
N
43
N
C
N
44
N
O
N
45
N
C
N
46
N
C
N
47
N
O
N
48
N
N
N
49
N
O
N
50
N
H
N
51
N
H
N
52
N
H
N
53
N
H
N
54
N
H
N
55
N
H
N
56
N
H
N
57
N
H
N
58
N
N
N
59
S
C
N
60
N
C
N
61
N
O
N
62
N
C
N
63
N
C
N
64
N
O
N
65
N
O
N
66
N
O
N
67
N
H
N
68
N
H
N
69
N
H
N
70
N
H
N
71
N
H
N
72
N
H
N
73
N
H
N
74
N
N
N
75
R
C
N
76
N
C
N
77
N
O
N
78
N
C
N
79
N
S
N
80
N
O
N
81
N
H
N
82
N
H
N
83
N
H
N
84
N
H
N
85
N
H
N
86
N
H
N
87
N
H
N
88
N
N
N
89
S
C
N
90
N
C
N
91
N
O
N
92
N
C
N
93
N
C
N
94
N
C
N
95
N
O
N
96
N
N
N
97
N
O
N
98
N
H
N
99
N
H
N
100
N
H
N
101
N
H
N
102
N
H
N
103
N
H
N
104
N
H
N
105
N
H
N
106
N
H
N
107
N
H
N
108
N
N
N
109
S
C
N
110
N
C
N
111
N
O
N
112
N
C
N
113
N
C
N
114
N
C
N
115
N
O
N
116
N
O
N
117
N
O
N
118
N
H
N
119
N
H
N
120
N
H
N
121
N
H
N
122
N
H
N
123
N
H
N
124
N
H
N
125
N
H
N
126
N
H
N
127
N
N
N
128
N
C
N
129
N
C
N
130
N
O
N
131
N
O
N
132
N
H
N
133
N
H
N
134
N
H
N
135
N
H
N
136
N
H
N
137
N
N
N
138
S
C
N
139
N
C
N
140
N
O
N
141
N
C
Y
142
N
C
Y
143
N
N
Y
144
N
C
Y
145
N
C
Y
146
N
N
N
147
N
O
N
148
N
H
N
149
N
H
N
150
N
H
N
151
N
H
N
152
N
H
N
153
N
H
N
154
N
H
N
155
N
H
N
156
N
H
N
157
N
H
N
158
N
O
N
159
N
H
N
160
N
H
N
161
N
N
N
162
S
C
N
163
N
C
N
164
N
O
N
165
S
C
N
166
N
C
N
167
N
C
N
168
N
C
N
169
N
O
N
170
N
H
N
171
N
H
N
172
N
H
N
173
N
H
N
174
N
H
N
175
N
H
N
176
N
H
N
177
N
H
N
178
N
H
N
179
N
H
N
180
N
H
N
181
N
H
N
182
N
H
N
183
N
N
N
184
S
C
N
185
N
C
N
186
N
O
N
187
N
C
N
188
N
C
N
189
N
C
N
190
N
C
N
191
N
O
N
192
N
H
N
193
N
H
N
194
N
H
N
195
N
H
N
196
N
H
N
197
N
H
N
198
N
H
N
199
N
H
N
200
N
H
N
201
N
H
N
202
N
H
N
203
N
H
N
204
N
H
N
205
N
N
N
206
S
C
N
207
N
C
N
208
N
O
N
209
N
C
N
210
N
C
N
211
N
C
N
212
N
C
N
213
N
N
N
214
N
O
N
215
N
H
N
216
N
H
N
217
N
H
N
218
N
H
N
219
N
H
N
220
N
H
N
221
N
H
N
222
N
H
N
223
N
H
N
224
N
H
N
225
N
H
N
226
N
H
N
227
N
H
N
228
N
H
N
229
N
H
N
230
N
N
N
231
S
C
N
232
N
C
N
233
N
O
N
234
N
C
N
235
N
C
N
236
N
S
N
237
N
C
N
238
N
O
N
239
N
H
N
240
N
H
N
241
N
H
N
242
N
H
N
243
N
H
N
244
N
H
N
245
N
H
N
246
N
H
N
247
N
H
N
248
N
H
N
249
N
H
N
250
N
S
N
251
N
C
N
252
N
C
N
253
N
C
N
254
N
O
N
255
N
N
N
256
N
C
N
257
N
C
Y
258
N
C
Y
259
N
C
N
260
N
C
Y
261
N
N
Y
262
N
C
Y
263
N
C
Y
264
N
C
Y
265
N
C
Y
266
N
C
Y
267
N
C
N
268
N
H
N
269
N
H
N
270
N
H
N
271
N
H
N
272
N
H
N
273
N
H
N
274
N
H
N
275
N
H
N
276
N
H
N
277
N
H
N
278
N
H
N
279
N
H
N
280
N
H
N
281
N
H
N
282
N
H
N
283
N
H
N
284
N
N
N
285
S
C
N
286
N
C
N
287
N
O
N
288
N
C
Y
289
N
C
Y
290
N
C
Y
291
N
C
Y
292
N
C
Y
293
N
C
Y
294
N
C
N
295
N
O
N
296
N
H
N
297
N
H
N
298
N
H
N
299
N
H
N
300
N
H
N
301
N
H
N
302
N
H
N
303
N
H
N
304
N
H
N
305
N
H
N
306
N
H
N
307
N
N
N
308
S
C
N
309
N
C
N
310
N
O
N
311
N
C
N
312
N
C
N
313
N
C
N
314
N
O
N
315
N
H
N
316
N
H
N
317
N
H
N
318
N
H
N
319
N
H
N
320
N
H
N
321
N
H
N
322
N
H
N
323
N
H
N
324
N
N
N
325
S
C
N
326
N
C
N
327
N
O
N
328
N
C
N
329
N
O
N
330
N
O
N
331
N
H
N
332
N
H
N
333
N
H
N
334
N
H
N
335
N
H
N
336
N
H
N
337
N
H
N
338
N
S
N
339
N
O
N
340
N
O
N
341
N
O
N
342
N
O
N
343
N
N
N
344
S
C
N
345
N
C
N
346
N
O
N
347
R
C
N
348
N
O
N
349
N
C
N
350
N
O
N
351
N
H
N
352
N
H
N
353
N
H
N
354
N
H
N
355
N
H
N
356
N
H
N
357
N
H
N
358
N
H
N
359
N
H
N
360
N
N
N
361
S
C
N
362
N
C
N
363
N
O
N
364
N
C
Y
365
N
C
Y
366
N
C
Y
367
N
C
Y
368
N
N
Y
369
N
C
Y
370
N
C
Y
371
N
C
Y
372
N
C
Y
373
N
C
N
374
N
O
N
375
N
H
N
376
N
H
N
377
N
H
N
378
N
H
N
379
N
H
N
380
N
H
N
381
N
H
N
382
N
H
N
383
N
H
N
384
N
H
N
385
N
H
N
386
N
H
N
387
N
N
N
388
S
C
N
389
N
C
N
390
N
O
N
391
N
C
Y
392
N
C
Y
393
N
C
Y
394
N
C
Y
395
N
C
Y
396
N
C
Y
397
N
C
N
398
N
O
N
399
N
O
N
400
N
H
N
401
N
H
N
402
N
H
N
403
N
H
N
404
N
H
N
405
N
H
N
406
N
H
N
407
N
H
N
408
N
H
N
409
N
H
N
410
N
H
N
411
N
N
N
412
S
C
N
413
N
C
N
414
N
O
N
415
N
C
N
416
N
C
N
417
N
C
N
418
N
O
N
419
N
H
N
420
N
H
N
421
N
H
N
422
N
H
N
423
N
H
N
424
N
H
N
425
N
H
N
426
N
H
N
427
N
H
N
428
N
H
N
429
N
H
N
1
N
sing
N
2
N
sing
N
3
N
sing
N
4
N
sing
N
5
N
sing
N
6
N
sing
N
7
N
doub
N
8
N
sing
N
9
N
sing
N
10
N
sing
N
11
N
sing
N
12
N
sing
N
13
N
sing
N
14
N
sing
N
15
N
sing
N
16
N
sing
N
17
N
sing
N
18
N
sing
N
19
N
doub
N
20
N
sing
N
21
N
sing
N
22
N
sing
N
23
N
sing
N
24
N
sing
N
25
N
sing
N
26
N
sing
N
27
N
sing
N
28
N
sing
N
29
N
sing
N
30
N
sing
N
31
N
sing
N
32
N
sing
N
33
N
doub
N
34
N
sing
N
35
N
sing
N
36
N
sing
N
37
N
sing
N
38
N
sing
N
39
N
sing
N
40
N
sing
N
41
N
sing
N
42
N
sing
N
43
N
sing
N
44
N
sing
N
45
N
doub
N
46
N
sing
N
47
N
sing
N
48
N
sing
N
49
N
sing
N
50
N
doub
N
51
N
sing
N
52
N
sing
N
53
N
sing
N
54
N
sing
N
55
N
sing
N
56
N
sing
N
57
N
sing
N
58
N
sing
N
59
N
sing
N
60
N
sing
N
61
N
doub
N
62
N
sing
N
63
N
sing
N
64
N
sing
N
65
N
sing
N
66
N
doub
N
67
N
sing
N
68
N
sing
N
69
N
sing
N
70
N
sing
N
71
N
sing
N
72
N
sing
N
73
N
sing
N
74
N
sing
N
75
N
sing
N
76
N
doub
N
77
N
sing
N
78
N
sing
N
79
N
sing
N
80
N
sing
N
81
N
sing
N
82
N
sing
N
83
N
sing
N
84
N
sing
N
85
N
sing
N
86
N
sing
N
87
N
sing
N
88
N
sing
N
89
N
doub
N
90
N
sing
N
91
N
sing
N
92
N
sing
N
93
N
sing
N
94
N
sing
N
95
N
sing
N
96
N
sing
N
97
N
doub
N
98
N
sing
N
99
N
sing
N
100
N
sing
N
101
N
sing
N
102
N
sing
N
103
N
sing
N
104
N
sing
N
105
N
sing
N
106
N
sing
N
107
N
sing
N
108
N
doub
N
109
N
sing
N
110
N
sing
N
111
N
sing
N
112
N
sing
N
113
N
sing
N
114
N
sing
N
115
N
sing
N
116
N
doub
N
117
N
sing
N
118
N
sing
N
119
N
sing
N
120
N
sing
N
121
N
sing
N
122
N
sing
N
123
N
sing
N
124
N
sing
N
125
N
sing
N
126
N
doub
N
127
N
sing
N
128
N
sing
N
129
N
sing
N
130
N
sing
N
131
N
sing
N
132
N
sing
N
133
N
sing
N
134
N
sing
N
135
N
doub
N
136
N
sing
N
137
N
sing
N
138
N
sing
N
139
N
sing
Y
140
N
sing
Y
141
N
doub
Y
142
N
doub
N
143
N
sing
Y
144
N
sing
N
145
N
sing
Y
146
N
sing
N
147
N
sing
N
148
N
sing
N
149
N
sing
N
150
N
sing
N
151
N
sing
N
152
N
sing
N
153
N
sing
N
154
N
sing
N
155
N
sing
N
156
N
sing
N
157
N
sing
N
158
N
doub
N
159
N
sing
N
160
N
sing
N
161
N
sing
N
162
N
sing
N
163
N
sing
N
164
N
sing
N
165
N
sing
N
166
N
sing
N
167
N
sing
N
168
N
sing
N
169
N
sing
N
170
N
sing
N
171
N
sing
N
172
N
sing
N
173
N
sing
N
174
N
sing
N
175
N
sing
N
176
N
sing
N
177
N
sing
N
178
N
sing
N
179
N
doub
N
180
N
sing
N
181
N
sing
N
182
N
sing
N
183
N
sing
N
184
N
sing
N
185
N
sing
N
186
N
sing
N
187
N
sing
N
188
N
sing
N
189
N
sing
N
190
N
sing
N
191
N
sing
N
192
N
sing
N
193
N
sing
N
194
N
sing
N
195
N
sing
N
196
N
sing
N
197
N
sing
N
198
N
sing
N
199
N
sing
N
200
N
doub
N
201
N
sing
N
202
N
sing
N
203
N
sing
N
204
N
sing
N
205
N
sing
N
206
N
sing
N
207
N
sing
N
208
N
sing
N
209
N
sing
N
210
N
sing
N
211
N
sing
N
212
N
sing
N
213
N
sing
N
214
N
sing
N
215
N
sing
N
216
N
sing
N
217
N
sing
N
218
N
sing
N
219
N
sing
N
220
N
sing
N
221
N
sing
N
222
N
sing
N
223
N
sing
N
224
N
doub
N
225
N
sing
N
226
N
sing
N
227
N
sing
N
228
N
sing
N
229
N
sing
N
230
N
sing
N
231
N
sing
N
232
N
sing
N
233
N
sing
N
234
N
sing
N
235
N
sing
N
236
N
sing
N
237
N
sing
N
238
N
sing
N
239
N
sing
N
240
N
sing
N
241
N
sing
N
242
N
sing
N
243
N
sing
N
244
N
sing
N
245
N
doub
N
246
N
sing
N
247
N
sing
N
248
N
sing
N
249
N
sing
N
250
N
sing
N
251
N
sing
N
252
N
sing
N
253
N
sing
N
254
N
sing
Y
255
N
doub
Y
256
N
sing
N
257
N
sing
Y
258
N
sing
N
259
N
sing
N
260
N
sing
Y
261
N
sing
N
262
N
sing
Y
263
N
doub
Y
264
N
sing
Y
265
N
sing
Y
266
N
doub
N
267
N
sing
Y
268
N
doub
N
269
N
sing
Y
270
N
sing
N
271
N
sing
N
272
N
sing
N
273
N
sing
N
274
N
sing
N
275
N
sing
N
276
N
sing
N
277
N
sing
N
278
N
sing
N
279
N
doub
N
280
N
sing
N
281
N
sing
N
282
N
sing
N
283
N
sing
Y
284
N
doub
Y
285
N
sing
Y
286
N
sing
N
287
N
sing
Y
288
N
doub
N
289
N
sing
Y
290
N
doub
N
291
N
sing
Y
292
N
sing
N
293
N
sing
N
294
N
sing
N
295
N
sing
N
296
N
sing
N
297
N
sing
N
298
N
sing
N
299
N
sing
N
300
N
sing
N
301
N
sing
N
302
N
doub
N
303
N
sing
N
304
N
sing
N
305
N
sing
N
306
N
sing
N
307
N
sing
N
308
N
sing
N
309
N
sing
N
310
N
sing
N
311
N
sing
N
312
N
sing
N
313
N
sing
N
314
N
sing
N
315
N
sing
N
316
N
sing
N
317
N
sing
N
318
N
sing
N
319
N
doub
N
320
N
sing
N
321
N
sing
N
322
N
sing
N
323
N
sing
N
324
N
sing
N
325
N
sing
N
326
N
doub
N
327
N
doub
N
328
N
sing
N
329
N
sing
N
330
N
sing
N
331
N
sing
N
332
N
sing
N
333
N
sing
N
334
N
sing
N
335
N
sing
N
336
N
doub
N
337
N
sing
N
338
N
sing
N
339
N
sing
N
340
N
sing
N
341
N
sing
N
342
N
sing
N
343
N
sing
N
344
N
sing
N
345
N
sing
N
346
N
sing
N
347
N
sing
N
348
N
sing
N
349
N
sing
N
350
N
sing
N
351
N
sing
N
352
N
doub
N
353
N
sing
N
354
N
sing
N
355
N
sing
N
356
N
sing
Y
357
N
doub
Y
358
N
sing
Y
359
N
sing
N
360
N
sing
Y
361
N
doub
Y
362
N
sing
Y
363
N
sing
N
364
N
sing
Y
365
N
sing
Y
366
N
doub
N
367
N
sing
Y
368
N
doub
N
369
N
sing
Y
370
N
sing
N
371
N
sing
N
372
N
sing
N
373
N
sing
N
374
N
sing
N
375
N
sing
N
376
N
sing
N
377
N
sing
N
378
N
sing
N
379
N
sing
N
380
N
doub
N
381
N
sing
N
382
N
sing
N
383
N
sing
N
384
N
sing
Y
385
N
doub
Y
386
N
sing
Y
387
N
sing
N
388
N
sing
Y
389
N
doub
N
390
N
sing
Y
391
N
doub
N
392
N
sing
Y
393
N
sing
N
394
N
sing
N
395
N
sing
N
396
N
sing
N
397
N
sing
N
398
N
sing
N
399
N
sing
N
400
N
sing
N
401
N
sing
N
402
N
sing
N
403
N
sing
N
404
N
doub
N
405
N
sing
N
406
N
sing
N
407
N
sing
N
408
N
sing
N
409
N
sing
N
410
N
sing
N
411
N
sing
N
412
N
sing
N
413
N
sing
N
414
N
sing
N
415
N
sing
US
Biochemistry
BICHAW
0033
0006-2960
42
6475
6483
10.1021/bi034138g
12767230
Discovery and characterization of cooperative ligand binding in the adaptive region of interleukin-2
2003
10.2210/pdb1nbp/pdb
pdb_00001nbp
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
2001-08-17
RIGAKU RAXIS IV
yale miorrors
SINGLE WAVELENGTH
M
x-ray
1
1.5418
1.0
1.5418
ROTATING ANODE
RIGAKU
15375.948
Interleukin-2
Y31C
1
man
polymer
96.063
SULFATE ION
1
syn
non-polymer
260.355
3-MERCAPTO-1-(1,3,4,9-TETRAHYDRO-B-CARBOLIN-2-YL)-PROPAN-1-ONE
1
syn
non-polymer
18.015
water
49
nat
water
IL-2, T-cell growth factor, TCGF, Aldesleukin
no
no
APTSSSTKKTQLQLEHLLLDLQMILNGINNCKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHL
RPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITFCQSIISTLT
APTSSSTKKTQLQLEHLLLDLQMILNGINNCKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHL
RPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITFCQSIISTLT
A
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
IL2
9606
Homo sapiens
511693
Escherichia coli BL21
BL21
plasmid
pRSET
1
2.19
43.34
VAPOR DIFFUSION, HANGING DROP
7.5
ammonium sulfate, PEG 8k, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 298K
298
software
database_2
struct_conn
struct_ref_seq_dif
struct_site
chem_comp_atom
chem_comp_bond
pdbx_initial_refinement_model
repository
Initial release
Version format compliance
Version format compliance
Refinement description
Database references
Derived calculations
Data collection
Refinement description
1
0
2002-12-18
1
1
2008-04-28
1
2
2011-07-13
1
3
2017-10-11
1
4
2021-10-27
1
5
2023-08-16
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_struct_conn.pdbx_leaving_atom_flag
_struct_ref_seq_dif.details
_struct_site.pdbx_auth_asym_id
_struct_site.pdbx_auth_comp_id
_struct_site.pdbx_auth_seq_id
RCSB
Y
RCSB
2002-12-03
REL
REL
SO4
SULFATE ION
MHC
3-MERCAPTO-1-(1,3,4,9-TETRAHYDRO-B-CARBOLIN-2-YL)-PROPAN-1-ONE
HOH
water
1M4A
PDB ENTRY 1M4A
PDB
experimental model
SUL
1
2
SO4
SO4
134
A
FRG
1
3
MHC
MHC
201
A
HOH
2
4
HOH
HOH
202
A
HOH
3
4
HOH
HOH
203
A
HOH
4
4
HOH
HOH
204
A
HOH
5
4
HOH
HOH
205
A
HOH
6
4
HOH
HOH
206
A
HOH
7
4
HOH
HOH
207
A
HOH
8
4
HOH
HOH
208
A
HOH
9
4
HOH
HOH
209
A
HOH
10
4
HOH
HOH
210
A
HOH
11
4
HOH
HOH
211
A
HOH
12
4
HOH
HOH
212
A
HOH
13
4
HOH
HOH
213
A
HOH
14
4
HOH
HOH
214
A
HOH
15
4
HOH
HOH
215
A
HOH
16
4
HOH
HOH
216
A
HOH
17
4
HOH
HOH
217
A
HOH
18
4
HOH
HOH
218
A
HOH
19
4
HOH
HOH
219
A
HOH
20
4
HOH
HOH
220
A
HOH
21
4
HOH
HOH
221
A
HOH
22
4
HOH
HOH
222
A
HOH
23
4
HOH
HOH
223
A
HOH
24
4
HOH
HOH
224
A
HOH
25
4
HOH
HOH
225
A
HOH
26
4
HOH
HOH
226
A
HOH
27
4
HOH
HOH
227
A
HOH
28
4
HOH
HOH
228
A
HOH
29
4
HOH
HOH
229
A
HOH
30
4
HOH
HOH
230
A
HOH
31
4
HOH
HOH
231
A
HOH
32
4
HOH
HOH
232
A
HOH
33
4
HOH
HOH
233
A
HOH
34
4
HOH
HOH
234
A
HOH
35
4
HOH
HOH
235
A
HOH
36
4
HOH
HOH
236
A
HOH
37
4
HOH
HOH
237
A
HOH
38
4
HOH
HOH
238
A
HOH
39
4
HOH
HOH
239
A
HOH
40
4
HOH
HOH
240
A
HOH
41
4
HOH
HOH
241
A
HOH
42
4
HOH
HOH
242
A
HOH
43
4
HOH
HOH
243
A
HOH
44
4
HOH
HOH
244
A
HOH
45
4
HOH
HOH
245
A
HOH
46
4
HOH
HOH
246
A
HOH
47
4
HOH
HOH
247
A
HOH
48
4
HOH
HOH
248
A
HOH
49
4
HOH
HOH
249
A
HOH
50
4
HOH
HOH
250
A
n
1
1
A
n
2
2
A
n
3
3
A
n
4
4
A
n
5
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
CYS
31
n
31
CYS
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
PHE
78
n
78
PHE
78
A
HIS
79
n
79
HIS
79
A
LEU
80
n
80
LEU
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
n
99
99
A
n
100
100
A
n
101
101
A
n
102
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
THR
133
n
133
THR
133
A
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
4
A
SER
4
1
Y
1
A
SER
5
A
SER
5
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
SER
99
A
SER
99
1
Y
1
A
GLU
100
A
GLU
100
1
Y
1
A
THR
101
A
THR
101
1
Y
1
A
THR
102
A
THR
102
1
Y
28.507
-1.03
0.00
0.00
1.10
0.00
-0.06
0.928
0.893
0.27734
0.22799
0.23034
0.23034
2.20
10.0
342
7042
6660
4.9
98.22
6.077
0.177
RANDOM
1
isotropic
THROUGHOUT
0
0
MOLECULAR REPLACEMENT
0.338
0.249
0.80
0.80
1.40
PDB ENTRY 1M4A
MAXIMUM LIKELIHOOD
MASK
2.20
10.0
49
1057
23
0
985
0.006
0.022
1025
1.191
2.009
1382
3.987
5.000
118
0.058
0.200
164
0.002
0.020
720
0.165
0.200
474
0.094
0.200
38
0.154
0.200
30
0.043
0.200
4
2.224
3.500
604
3.407
6.000
983
3.061
4.000
421
4.315
7.000
399
0.332
0.265
2.273
38
613
15
33
2.2
20.
1NBP
7096
0.0
0.0
0.069
0.069
1
17.5
3.1
98.2
0.253
2.20
2.28
5.5
715
0.253
3.1
96.9
data reduction
d*TREK
phasing
AMoRE
refinement
REFMAC
5.1.19
data scaling
d*TREK
Crystal Structure Of Human Interleukin-2 Y31C Covalently Modified At C31 With 3-Mercapto-1-(1,3,4,9-tetrahydro-B-carbolin-2-yl)-propan-1-one
1
N
N
2
N
N
3
N
N
4
N
N
A
SER
6
A
SER
6
HELX_P
A
ASN
29
A
ASN
29
1
1
24
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
SER
130
A
SER
130
1
7
18
disulf
2.029
A
CYS
58
A
SG
CYS
58
1_555
A
CYS
105
A
SG
CYS
105
1_555
covale
2.036
none
A
CYS
31
A
SG
CYS
31
1_555
A
MHC
201
C
S1
MHC
1_555
CYTOKINE
CYTOKINE, FOUR-HELIX BUNDLE, SMALL MOLECULE COMPLEX
IL2_HUMAN
UNP
1
21
P60568
APTSSSTKKTQLQLEHLLLDLQMILNGINNYKNPKLTRMLTFKFYMPKKATELKHLQCLEEELKPLEEVLNLAQSKNFHL
RPRDLISNINVIVLELKGSETTFMCEYADETATIVEFLNRWITFCQSIISTLT
21
153
1NBP
1
133
P60568
A
1
1
133
1
TYR
engineered mutation
CYS
31
1NBP
A
P60568
UNP
51
31
BINDING SITE FOR RESIDUE SO4 A 134
A
SO4
134
Software
4
BINDING SITE FOR RESIDUE MHC A 201
A
MHC
201
Software
8
A
LYS
49
A
LYS
49
4
1_555
A
LYS
54
A
LYS
54
4
1_555
A
HIS
55
A
HIS
55
4
1_555
A
THR
133
A
THR
133
4
2_565
A
GLY
27
A
GLY
27
8
1_555
A
CYS
31
A
CYS
31
8
1_555
A
LEU
70
A
LEU
70
8
1_555
A
ALA
73
A
ALA
73
8
1_555
A
GLN
74
A
GLN
74
8
1_555
A
PHE
78
A
PHE
78
8
1_555
A
PRO
82
A
PRO
82
8
1_555
A
LEU
85
A
LEU
85
8
1_555
18
P 21 21 2