0.023234
0.000000
0.009987
0.000000
0.014741
0.000000
0.000000
0.000000
0.021910
0.00000
0.00000
0.00000
Miller, D.J.
Ravikumar, K.
Shen, H.
Suh, J.-K.
Kerwin, S.M.
Robertus, J.D.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
2
90.00
113.26
90.00
43.040
67.840
49.680
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
C6 H6 N4 O2
166.137
5-AMINO-2-METHYL-6H-OXAZOLO[5,4-D]PYRIMIDIN-7-ONE
8-METHYL-9-OXOGUANINE
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
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
Y
250
N
N
Y
251
N
C
Y
252
N
N
Y
253
N
C
Y
254
N
C
Y
255
N
C
N
256
N
O
Y
257
N
N
Y
258
N
C
Y
259
N
O
N
260
N
C
N
261
N
N
N
262
N
H
N
263
N
H
N
264
N
H
N
265
N
H
N
266
N
H
N
267
N
H
N
268
N
N
N
269
S
C
N
270
N
C
N
271
N
O
N
272
N
C
Y
273
N
C
Y
274
N
C
Y
275
N
C
Y
276
N
C
Y
277
N
C
Y
278
N
C
N
279
N
O
N
280
N
H
N
281
N
H
N
282
N
H
N
283
N
H
N
284
N
H
N
285
N
H
N
286
N
H
N
287
N
H
N
288
N
H
N
289
N
H
N
290
N
H
N
291
N
N
N
292
S
C
N
293
N
C
N
294
N
O
N
295
N
C
N
296
N
C
N
297
N
C
N
298
N
O
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
H
N
308
N
N
N
309
S
C
N
310
N
C
N
311
N
O
N
312
N
C
N
313
N
O
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
N
N
323
S
C
N
324
N
C
N
325
N
O
N
326
R
C
N
327
N
O
N
328
N
C
N
329
N
O
N
330
N
H
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
H
N
339
N
N
N
340
S
C
N
341
N
C
N
342
N
O
N
343
N
C
Y
344
N
C
Y
345
N
C
Y
346
N
C
Y
347
N
N
Y
348
N
C
Y
349
N
C
Y
350
N
C
Y
351
N
C
Y
352
N
C
N
353
N
O
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
H
N
361
N
H
N
362
N
H
N
363
N
H
N
364
N
H
N
365
N
H
N
366
N
N
N
367
S
C
N
368
N
C
N
369
N
O
N
370
N
C
Y
371
N
C
Y
372
N
C
Y
373
N
C
Y
374
N
C
Y
375
N
C
Y
376
N
C
N
377
N
O
N
378
N
O
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
H
N
388
N
H
N
389
N
H
N
390
N
N
N
391
S
C
N
392
N
C
N
393
N
O
N
394
N
C
N
395
N
C
N
396
N
C
N
397
N
O
N
398
N
H
N
399
N
H
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
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
Y
237
N
sing
Y
238
N
sing
N
239
N
sing
Y
240
N
doub
N
241
N
sing
Y
242
N
sing
Y
243
N
doub
Y
244
N
sing
Y
245
N
sing
Y
246
N
sing
N
247
N
doub
Y
248
N
doub
Y
249
N
sing
N
250
N
sing
N
251
N
sing
N
252
N
sing
N
253
N
sing
N
254
N
sing
N
255
N
sing
N
256
N
sing
N
257
N
sing
N
258
N
sing
N
259
N
sing
N
260
N
sing
N
261
N
sing
N
262
N
doub
N
263
N
sing
N
264
N
sing
N
265
N
sing
N
266
N
sing
Y
267
N
doub
Y
268
N
sing
Y
269
N
sing
N
270
N
sing
Y
271
N
doub
N
272
N
sing
Y
273
N
doub
N
274
N
sing
Y
275
N
sing
N
276
N
sing
N
277
N
sing
N
278
N
sing
N
279
N
sing
N
280
N
sing
N
281
N
sing
N
282
N
sing
N
283
N
sing
N
284
N
sing
N
285
N
doub
N
286
N
sing
N
287
N
sing
N
288
N
sing
N
289
N
sing
N
290
N
sing
N
291
N
sing
N
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
doub
N
316
N
sing
N
317
N
sing
N
318
N
sing
N
319
N
sing
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
sing
N
327
N
sing
N
328
N
sing
N
329
N
sing
N
330
N
sing
N
331
N
doub
N
332
N
sing
N
333
N
sing
N
334
N
sing
N
335
N
sing
Y
336
N
doub
Y
337
N
sing
Y
338
N
sing
N
339
N
sing
Y
340
N
doub
Y
341
N
sing
Y
342
N
sing
N
343
N
sing
Y
344
N
sing
Y
345
N
doub
N
346
N
sing
Y
347
N
doub
N
348
N
sing
Y
349
N
sing
N
350
N
sing
N
351
N
sing
N
352
N
sing
N
353
N
sing
N
354
N
sing
N
355
N
sing
N
356
N
sing
N
357
N
sing
N
358
N
sing
N
359
N
doub
N
360
N
sing
N
361
N
sing
N
362
N
sing
N
363
N
sing
Y
364
N
doub
Y
365
N
sing
Y
366
N
sing
N
367
N
sing
Y
368
N
doub
N
369
N
sing
Y
370
N
doub
N
371
N
sing
Y
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
sing
N
381
N
sing
N
382
N
sing
N
383
N
doub
N
384
N
sing
N
385
N
sing
N
386
N
sing
N
387
N
sing
N
388
N
sing
N
389
N
sing
N
390
N
sing
N
391
N
sing
N
392
N
sing
N
393
N
sing
N
394
N
sing
US
J.Med.Chem.
JMCMAR
0151
0022-2623
45
90
98
10.1021/jm010186s
11754581
Structure-based design and characterization of novel platforms for ricin and shiga toxin inhibition.
2002
10.2210/pdb1il9/pdb
pdb_00001il9
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
173.0
1
IMAGE PLATE
2000-09-17
RIGAKU RAXIS IV
DOUBLE FOCUSSING MIRRORS (NI & PT) + NI FILTER
SINGLE WAVELENGTH
M
x-ray
1
1.5418
1.0
1.5418
ROTATING ANODE
RIGAKU RU200
29936.758
RICIN A CHAIN
3.2.2.22
1
man
polymer
CHEMICAL SYNTHESIS
166.137
5-AMINO-2-METHYL-6H-OXAZOLO[5,4-D]PYRIMIDIN-7-ONE
1
syn
non-polymer
18.015
water
16
nat
water
no
no
IFPKQYPIINFTTAGATVQSYTNFIRAVRGRLTTGADVRHEIPVLPNRVGLPINQRFILVELSNHAELSVTLALDVTNAY
VVGYRAGNSAYFFHPDNQEDAEAITHLFTDVQNRYTFAFGGNYDRLEQLAGNLRENIELGNGPLEEAISALYYYSTGGTQ
LPTLARSFIICIQMISEAARFQYIEGEMRTRIRYNRRSAPDPSVITLENSWGRLSTAIQESNQGAFASPIQLQRRNGSKF
SVYDVSILIPIIALMVYRCAPPPSSQF
IFPKQYPIINFTTAGATVQSYTNFIRAVRGRLTTGADVRHEIPVLPNRVGLPINQRFILVELSNHAELSVTLALDVTNAY
VVGYRAGNSAYFFHPDNQEDAEAITHLFTDVQNRYTFAFGGNYDRLEQLAGNLRENIELGNGPLEEAISALYYYSTGGTQ
LPTLARSFIICIQMISEAARFQYIEGEMRTRIRYNRRSAPDPSVITLENSWGRLSTAIQESNQGAFASPIQLQRRNGSKF
SVYDVSILIPIIALMVYRCAPPPSSQF
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
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
castor bean
Ricinus
Escherichia
sample
3988
Ricinus communis
562
Escherichia coli
1
2.22
44.71
VAPOR DIFFUSION, SITTING DROP
8.9
PEG 8000, TRIS-HCL, BETA-MERCAPTOETHANOL, EDTA, 8-METHYL-9-OXOGUANINE, pH 8.9, VAPOR DIFFUSION, SITTING DROP, temperature 277K
277
chem_comp_atom
chem_comp_bond
database_2
pdbx_initial_refinement_model
struct_site
entity
pdbx_entity_src_syn
repository
Initial release
Version format compliance
Version format compliance
Data collection
Database references
Derived calculations
Refinement description
Source and taxonomy
Structure summary
1
0
2002-01-16
1
1
2008-04-27
1
2
2011-07-13
1
3
2023-08-16
1
4
2024-03-13
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_struct_site.pdbx_auth_asym_id
_struct_site.pdbx_auth_comp_id
_struct_site.pdbx_auth_seq_id
_entity.details
STRUCTURE OF RECOMBINANT RICIN A CHAIN AT 2.3 A
RICIN A CHAIN (RECOMBINANT) COMPLEX WITH PTEROIC ACID
RICIN A CHAIN (RECOMBINANT) COMPLEX WITH NEOPTERIN
X-RAY ANALYSIS OF SUBSTRATE ANALOGS IN THE RICIN A-CHAIN ACTIVE SITE
STRUCTURE OF RICIN A CHAIN BOUND WITH INHIBITOR 7-DEAZAGUANINE
STRUCTURE OF RICIN A CHAIN BOUND WITH INHIBITOR 9-DEAZAGUANINE
STRUCTURE OF RICIN A CHAIN BOUND WITH INHIBITOR 2,5-DIAMINO-4,6-DIHYDROXYPYRIMIDINE
RCSB
Y
RCSB
2001-05-07
REL
REL
MOG
5-AMINO-2-METHYL-6H-OXAZOLO[5,4-D]PYRIMIDIN-7-ONE
HOH
water
1RTC
PDB ENTRY 1RTC
PDB
experimental model
MOG
301
2
MOG
MOG
301
A
HOH
1
3
HOH
HOH
302
A
HOH
2
3
HOH
HOH
303
A
HOH
3
3
HOH
HOH
304
A
HOH
4
3
HOH
HOH
305
A
HOH
5
3
HOH
HOH
306
A
HOH
6
3
HOH
HOH
307
A
HOH
7
3
HOH
HOH
308
A
HOH
8
3
HOH
HOH
309
A
HOH
9
3
HOH
HOH
310
A
HOH
10
3
HOH
HOH
311
A
HOH
11
3
HOH
HOH
312
A
HOH
12
3
HOH
HOH
313
A
HOH
13
3
HOH
HOH
314
A
HOH
14
3
HOH
HOH
315
A
HOH
15
3
HOH
HOH
316
A
HOH
16
3
HOH
HOH
317
A
ILE
1
n
1
ILE
1
A
PHE
2
n
2
PHE
2
A
PRO
3
n
3
PRO
3
A
LYS
4
n
4
LYS
4
A
GLN
5
n
5
GLN
5
A
TYR
6
n
6
TYR
6
A
PRO
7
n
7
PRO
7
A
ILE
8
n
8
ILE
8
A
ILE
9
n
9
ILE
9
A
ASN
10
n
10
ASN
10
A
PHE
11
n
11
PHE
11
A
THR
12
n
12
THR
12
A
THR
13
n
13
THR
13
A
ALA
14
n
14
ALA
14
A
GLY
15
n
15
GLY
15
A
ALA
16
n
16
ALA
16
A
THR
17
n
17
THR
17
A
VAL
18
n
18
VAL
18
A
GLN
19
n
19
GLN
19
A
SER
20
n
20
SER
20
A
TYR
21
n
21
TYR
21
A
THR
22
n
22
THR
22
A
ASN
23
n
23
ASN
23
A
PHE
24
n
24
PHE
24
A
ILE
25
n
25
ILE
25
A
ARG
26
n
26
ARG
26
A
ALA
27
n
27
ALA
27
A
VAL
28
n
28
VAL
28
A
ARG
29
n
29
ARG
29
A
GLY
30
n
30
GLY
30
A
ARG
31
n
31
ARG
31
A
LEU
32
n
32
LEU
32
A
THR
33
n
33
THR
33
A
THR
34
n
34
THR
34
A
GLY
35
n
35
GLY
35
A
ALA
36
n
36
ALA
36
A
ASP
37
n
37
ASP
37
A
VAL
38
n
38
VAL
38
A
ARG
39
n
39
ARG
39
A
HIS
40
n
40
HIS
40
A
GLU
41
n
41
GLU
41
A
ILE
42
n
42
ILE
42
A
PRO
43
n
43
PRO
43
A
VAL
44
n
44
VAL
44
A
LEU
45
n
45
LEU
45
A
PRO
46
n
46
PRO
46
A
ASN
47
n
47
ASN
47
A
ARG
48
n
48
ARG
48
A
VAL
49
n
49
VAL
49
A
GLY
50
n
50
GLY
50
A
LEU
51
n
51
LEU
51
A
PRO
52
n
52
PRO
52
A
ILE
53
n
53
ILE
53
A
ASN
54
n
54
ASN
54
A
GLN
55
n
55
GLN
55
A
ARG
56
n
56
ARG
56
A
PHE
57
n
57
PHE
57
A
ILE
58
n
58
ILE
58
A
LEU
59
n
59
LEU
59
A
VAL
60
n
60
VAL
60
A
GLU
61
n
61
GLU
61
A
LEU
62
n
62
LEU
62
A
SER
63
n
63
SER
63
A
ASN
64
n
64
ASN
64
A
HIS
65
n
65
HIS
65
A
ALA
66
n
66
ALA
66
A
GLU
67
n
67
GLU
67
A
LEU
68
n
68
LEU
68
A
SER
69
n
69
SER
69
A
VAL
70
n
70
VAL
70
A
THR
71
n
71
THR
71
A
LEU
72
n
72
LEU
72
A
ALA
73
n
73
ALA
73
A
LEU
74
n
74
LEU
74
A
ASP
75
n
75
ASP
75
A
VAL
76
n
76
VAL
76
A
THR
77
n
77
THR
77
A
ASN
78
n
78
ASN
78
A
ALA
79
n
79
ALA
79
A
TYR
80
n
80
TYR
80
A
VAL
81
n
81
VAL
81
A
VAL
82
n
82
VAL
82
A
GLY
83
n
83
GLY
83
A
TYR
84
n
84
TYR
84
A
ARG
85
n
85
ARG
85
A
ALA
86
n
86
ALA
86
A
GLY
87
n
87
GLY
87
A
ASN
88
n
88
ASN
88
A
SER
89
n
89
SER
89
A
ALA
90
n
90
ALA
90
A
TYR
91
n
91
TYR
91
A
PHE
92
n
92
PHE
92
A
PHE
93
n
93
PHE
93
A
HIS
94
n
94
HIS
94
A
PRO
95
n
95
PRO
95
A
ASP
96
n
96
ASP
96
A
ASN
97
n
97
ASN
97
A
GLN
98
n
98
GLN
98
A
GLU
99
n
99
GLU
99
A
ASP
100
n
100
ASP
100
A
ALA
101
n
101
ALA
101
A
GLU
102
n
102
GLU
102
A
ALA
103
n
103
ALA
103
A
ILE
104
n
104
ILE
104
A
THR
105
n
105
THR
105
A
HIS
106
n
106
HIS
106
A
LEU
107
n
107
LEU
107
A
PHE
108
n
108
PHE
108
A
THR
109
n
109
THR
109
A
ASP
110
n
110
ASP
110
A
VAL
111
n
111
VAL
111
A
GLN
112
n
112
GLN
112
A
ASN
113
n
113
ASN
113
A
ARG
114
n
114
ARG
114
A
TYR
115
n
115
TYR
115
A
THR
116
n
116
THR
116
A
PHE
117
n
117
PHE
117
A
ALA
118
n
118
ALA
118
A
PHE
119
n
119
PHE
119
A
GLY
120
n
120
GLY
120
A
GLY
121
n
121
GLY
121
A
ASN
122
n
122
ASN
122
A
TYR
123
n
123
TYR
123
A
ASP
124
n
124
ASP
124
A
ARG
125
n
125
ARG
125
A
LEU
126
n
126
LEU
126
A
GLU
127
n
127
GLU
127
A
GLN
128
n
128
GLN
128
A
LEU
129
n
129
LEU
129
A
ALA
130
n
130
ALA
130
A
GLY
131
n
131
GLY
131
A
ASN
132
n
132
ASN
132
A
LEU
133
n
133
LEU
133
A
ARG
134
n
134
ARG
134
A
GLU
135
n
135
GLU
135
A
ASN
136
n
136
ASN
136
A
ILE
137
n
137
ILE
137
A
GLU
138
n
138
GLU
138
A
LEU
139
n
139
LEU
139
A
GLY
140
n
140
GLY
140
A
ASN
141
n
141
ASN
141
A
GLY
142
n
142
GLY
142
A
PRO
143
n
143
PRO
143
A
LEU
144
n
144
LEU
144
A
GLU
145
n
145
GLU
145
A
GLU
146
n
146
GLU
146
A
ALA
147
n
147
ALA
147
A
ILE
148
n
148
ILE
148
A
SER
149
n
149
SER
149
A
ALA
150
n
150
ALA
150
A
LEU
151
n
151
LEU
151
A
TYR
152
n
152
TYR
152
A
TYR
153
n
153
TYR
153
A
TYR
154
n
154
TYR
154
A
SER
155
n
155
SER
155
A
THR
156
n
156
THR
156
A
GLY
157
n
157
GLY
157
A
GLY
158
n
158
GLY
158
A
THR
159
n
159
THR
159
A
GLN
160
n
160
GLN
160
A
LEU
161
n
161
LEU
161
A
PRO
162
n
162
PRO
162
A
THR
163
n
163
THR
163
A
LEU
164
n
164
LEU
164
A
ALA
165
n
165
ALA
165
A
ARG
166
n
166
ARG
166
A
SER
167
n
167
SER
167
A
PHE
168
n
168
PHE
168
A
ILE
169
n
169
ILE
169
A
ILE
170
n
170
ILE
170
A
CYS
171
n
171
CYS
171
A
ILE
172
n
172
ILE
172
A
GLN
173
n
173
GLN
173
A
MET
174
n
174
MET
174
A
ILE
175
n
175
ILE
175
A
SER
176
n
176
SER
176
A
GLU
177
n
177
GLU
177
A
ALA
178
n
178
ALA
178
A
ALA
179
n
179
ALA
179
A
ARG
180
n
180
ARG
180
A
PHE
181
n
181
PHE
181
A
GLN
182
n
182
GLN
182
A
TYR
183
n
183
TYR
183
A
ILE
184
n
184
ILE
184
A
GLU
185
n
185
GLU
185
A
GLY
186
n
186
GLY
186
A
GLU
187
n
187
GLU
187
A
MET
188
n
188
MET
188
A
ARG
189
n
189
ARG
189
A
THR
190
n
190
THR
190
A
ARG
191
n
191
ARG
191
A
ILE
192
n
192
ILE
192
A
ARG
193
n
193
ARG
193
A
TYR
194
n
194
TYR
194
A
ASN
195
n
195
ASN
195
A
ARG
196
n
196
ARG
196
A
ARG
197
n
197
ARG
197
A
SER
198
n
198
SER
198
A
ALA
199
n
199
ALA
199
A
PRO
200
n
200
PRO
200
A
ASP
201
n
201
ASP
201
A
PRO
202
n
202
PRO
202
A
SER
203
n
203
SER
203
A
VAL
204
n
204
VAL
204
A
ILE
205
n
205
ILE
205
A
THR
206
n
206
THR
206
A
LEU
207
n
207
LEU
207
A
GLU
208
n
208
GLU
208
A
ASN
209
n
209
ASN
209
A
SER
210
n
210
SER
210
A
TRP
211
n
211
TRP
211
A
GLY
212
n
212
GLY
212
A
ARG
213
n
213
ARG
213
A
LEU
214
n
214
LEU
214
A
SER
215
n
215
SER
215
A
THR
216
n
216
THR
216
A
ALA
217
n
217
ALA
217
A
ILE
218
n
218
ILE
218
A
GLN
219
n
219
GLN
219
A
GLU
220
n
220
GLU
220
A
SER
221
n
221
SER
221
A
ASN
222
n
222
ASN
222
A
GLN
223
n
223
GLN
223
A
GLY
224
n
224
GLY
224
A
ALA
225
n
225
ALA
225
A
PHE
226
n
226
PHE
226
A
ALA
227
n
227
ALA
227
A
SER
228
n
228
SER
228
A
PRO
229
n
229
PRO
229
A
ILE
230
n
230
ILE
230
A
GLN
231
n
231
GLN
231
A
LEU
232
n
232
LEU
232
A
GLN
233
n
233
GLN
233
A
ARG
234
n
234
ARG
234
A
ARG
235
n
235
ARG
235
A
ASN
236
n
236
ASN
236
A
GLY
237
n
237
GLY
237
A
SER
238
n
238
SER
238
A
LYS
239
n
239
LYS
239
A
PHE
240
n
240
PHE
240
A
SER
241
n
241
SER
241
A
VAL
242
n
242
VAL
242
A
TYR
243
n
243
TYR
243
A
ASP
244
n
244
ASP
244
A
VAL
245
n
245
VAL
245
A
SER
246
n
246
SER
246
A
ILE
247
n
247
ILE
247
A
LEU
248
n
248
LEU
248
A
ILE
249
n
249
ILE
249
A
PRO
250
n
250
PRO
250
A
ILE
251
n
251
ILE
251
A
ILE
252
n
252
ILE
252
A
ALA
253
n
253
ALA
253
A
LEU
254
n
254
LEU
254
A
MET
255
n
255
MET
255
A
VAL
256
n
256
VAL
256
A
TYR
257
n
257
TYR
257
A
ARG
258
n
258
ARG
258
A
CYS
259
n
259
CYS
259
A
ALA
260
n
260
ALA
260
A
PRO
261
n
261
PRO
261
A
PRO
262
n
262
PRO
262
A
PRO
263
n
263
PRO
263
A
SER
264
n
264
SER
264
A
SER
265
n
265
SER
265
A
GLN
266
n
266
GLN
266
A
PHE
267
n
267
PHE
267
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
A
N
ILE
9
A
N
ILE
9
A
O
LEU
59
A
O
LEU
59
A
N
LEU
62
A
N
LEU
62
A
O
VAL
70
A
O
VAL
70
A
O
ALA
73
A
O
ALA
73
A
N
VAL
82
A
N
VAL
82
A
N
ALA
86
A
N
ALA
86
A
O
SER
89
A
O
SER
89
A
N
ALA
90
A
N
ALA
90
A
O
ASN
113
A
O
ASN
113
A
N
ARG
39
A
N
ARG
39
A
O
ILE
42
A
O
ILE
42
A
N
LEU
232
A
N
LEU
232
A
O
PHE
240
A
O
PHE
240
1
A
CB
SER
264
A
CB
SER
264
1
Y
1
A
OG
SER
264
A
OG
SER
264
1
Y
1
A
PRO
3
-58.59
82.43
1
A
LYS
4
70.13
127.81
1
A
ALA
14
-115.86
-81.33
1
A
ALA
16
-59.56
88.33
1
A
ASP
37
58.92
87.26
1
A
GLU
41
73.99
-31.58
1
A
ASN
78
-166.27
21.79
1
A
THR
105
-73.22
47.99
1
A
HIS
106
-148.79
-25.46
1
A
TYR
123
-28.84
-56.80
1
A
THR
159
-104.85
-69.65
1
A
GLN
160
66.25
96.07
1
A
ILE
175
-107.80
-62.02
1
A
GLN
223
41.91
27.93
1
A
ILE
251
-93.02
-70.99
1
A
ARG
258
-105.72
-73.87
1
A
PRO
262
-69.27
-157.08
0.306
0.247
3.1
20.0
259
4348
6.0
RANDOM
1
THROUGHOUT
2.0
MOLECULAR REPLACEMENT
PDB ENTRY 1RTC
ENGH & HUBER
3.1
20.0
16
2140
12
0
2112
0.004
1.210
3.10
20.000
1IL9
5350
0.000
0.103
1
10.15000
2.820
95.6
0.1592
3.10
3.20
95.4
model building
X-PLOR
refinement
X-PLOR
3.851
data reduction
DENZO
data scaling
SCALEPACK
phasing
X-PLOR
STRUCTURE OF RICIN A CHAIN BOUND WITH INHIBITOR 8-METHYL-9-OXOGUANINE
1
N
N
2
N
N
3
N
N
A
THR
17
A
THR
17
HELX_P
A
THR
33
A
THR
33
1
1
17
A
PRO
52
A
PRO
52
HELX_P
A
GLN
55
A
GLN
55
5
2
4
A
ASN
97
A
ASN
97
HELX_P
A
THR
105
A
THR
105
1
3
9
A
ASN
122
A
ASN
122
HELX_P
A
GLY
131
A
GLY
131
1
4
10
A
LEU
133
A
LEU
133
HELX_P
A
ILE
137
A
ILE
137
5
5
5
A
GLY
140
A
GLY
140
HELX_P
A
TYR
154
A
TYR
154
1
6
15
A
GLN
160
A
GLN
160
HELX_P
A
PHE
181
A
PHE
181
1
7
22
A
PHE
181
A
PHE
181
HELX_P
A
TYR
194
A
TYR
194
1
8
14
A
ASP
201
A
ASP
201
HELX_P
A
SER
221
A
SER
221
1
9
21
A
VAL
245
A
VAL
245
HELX_P
A
ILE
249
A
ILE
249
1
10
5
HYDROLASE
STRUCTURE-BASED DESIGN, TOXIN-INHIBITOR COMPLEX, GLYCOSIDASE, HYDROLASE, RIBOSOME-INHIBITING PROTEIN
RICI_RICCO
UNP
1
36
P02879
IFPKQYPIINFTTAGATVQSYTNFIRAVRGRLTTGADVRHEIPVLPNRVGLPINQRFILVELSNHAELSVTLALDVTNAY
VVGYRAGNSAYFFHPDNQEDAEAITHLFTDVQNRYTFAFGGNYDRLEQLAGNLRENIELGNGPLEEAISALYYYSTGGTQ
LPTLARSFIICIQMISEAARFQYIEGEMRTRIRYNRRSAPDPSVITLENSWGRLSTAIQESNQGAFASPIQLQRRNGSKF
SVYDVSILIPIIALMVYRCAPPPSSQF
36
302
1IL9
1
267
P02879
A
1
1
267
6
2
2
parallel
anti-parallel
anti-parallel
anti-parallel
parallel
anti-parallel
anti-parallel
A
ILE
8
A
ILE
8
A
THR
12
A
THR
12
A
PHE
57
A
PHE
57
A
SER
63
A
SER
63
A
SER
69
A
SER
69
A
ASP
75
A
ASP
75
A
VAL
81
A
VAL
81
A
ALA
86
A
ALA
86
A
SER
89
A
SER
89
A
PHE
92
A
PHE
92
A
ASN
113
A
ASN
113
A
THR
116
A
THR
116
A
VAL
38
A
VAL
38
A
ARG
39
A
ARG
39
A
ILE
42
A
ILE
42
A
PRO
43
A
PRO
43
A
ALA
225
A
ALA
225
A
GLN
233
A
GLN
233
A
LYS
239
A
LYS
239
A
ASP
244
A
ASP
244
BINDING SITE FOR RESIDUE MOG A 301
A
MOG
301
Software
11
A
ALA
79
A
ALA
79
11
1_555
A
TYR
80
A
TYR
80
11
1_555
A
VAL
81
A
VAL
81
11
1_555
A
PHE
93
A
PHE
93
11
1_555
A
GLY
121
A
GLY
121
11
1_555
A
ASN
122
A
ASN
122
11
1_555
A
TYR
123
A
TYR
123
11
1_555
A
ILE
172
A
ILE
172
11
1_555
A
SER
176
A
SER
176
11
1_555
A
GLU
177
A
GLU
177
11
1_555
A
ARG
180
A
ARG
180
11
1_555
4
P 1 21 1