0.007060
0.004080
0.000000
0.000000
0.008150
0.000000
0.000000
0.000000
0.006130
0.00000
0.00000
0.00000
De Azevedo Jr., W.F.
Marangoni Dos Santos, D.
Canduri, F.
Santos, G.C.
Olivieri, J.R.
Silva, R.G.
Basso, L.A.
Palma, M.S.
Santos, D.S.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
18
90.00
90.00
120.00
141.630
141.630
163.160
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
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
N
N
251
S
C
N
252
N
C
N
253
N
O
N
254
N
C
Y
255
N
C
Y
256
N
C
Y
257
N
C
Y
258
N
C
Y
259
N
C
Y
260
N
C
N
261
N
O
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
H
N
269
N
H
N
270
N
H
N
271
N
H
N
272
N
H
N
273
N
N
N
274
S
C
N
275
N
C
N
276
N
O
N
277
N
C
N
278
N
C
N
279
N
C
N
280
N
O
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
N
N
291
S
C
N
292
N
C
N
293
N
O
N
294
N
C
N
295
N
O
N
296
N
O
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
S
N
305
N
O
N
306
N
O
N
307
N
O
N
308
N
O
N
309
N
N
N
310
S
C
N
311
N
C
N
312
N
O
N
313
R
C
N
314
N
O
N
315
N
C
N
316
N
O
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
H
N
325
N
H
N
326
N
N
N
327
S
C
N
328
N
C
N
329
N
O
N
330
N
C
Y
331
N
C
Y
332
N
C
Y
333
N
C
Y
334
N
N
Y
335
N
C
Y
336
N
C
Y
337
N
C
Y
338
N
C
Y
339
N
C
N
340
N
O
N
341
N
H
N
342
N
H
N
343
N
H
N
344
N
H
N
345
N
H
N
346
N
H
N
347
N
H
N
348
N
H
N
349
N
H
N
350
N
H
N
351
N
H
N
352
N
H
N
353
N
N
N
354
S
C
N
355
N
C
N
356
N
O
N
357
N
C
Y
358
N
C
Y
359
N
C
Y
360
N
C
Y
361
N
C
Y
362
N
C
Y
363
N
C
N
364
N
O
N
365
N
O
N
366
N
H
N
367
N
H
N
368
N
H
N
369
N
H
N
370
N
H
N
371
N
H
N
372
N
H
N
373
N
H
N
374
N
H
N
375
N
H
N
376
N
H
N
377
N
N
N
378
S
C
N
379
N
C
N
380
N
O
N
381
N
C
N
382
N
C
N
383
N
C
N
384
N
O
N
385
N
H
N
386
N
H
N
387
N
H
N
388
N
H
N
389
N
H
N
390
N
H
N
391
N
H
N
392
N
H
N
393
N
H
N
394
N
H
N
395
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
doub
N
244
N
sing
N
245
N
sing
N
246
N
sing
N
247
N
sing
Y
248
N
doub
Y
249
N
sing
Y
250
N
sing
N
251
N
sing
Y
252
N
doub
N
253
N
sing
Y
254
N
doub
N
255
N
sing
Y
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
sing
N
263
N
sing
N
264
N
sing
N
265
N
sing
N
266
N
doub
N
267
N
sing
N
268
N
sing
N
269
N
sing
N
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
sing
N
280
N
sing
N
281
N
sing
N
282
N
sing
N
283
N
doub
N
284
N
sing
N
285
N
sing
N
286
N
sing
N
287
N
sing
N
288
N
sing
N
289
N
sing
N
290
N
doub
N
291
N
doub
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
doub
N
301
N
sing
N
302
N
sing
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
doub
N
317
N
sing
N
318
N
sing
N
319
N
sing
N
320
N
sing
Y
321
N
doub
Y
322
N
sing
Y
323
N
sing
N
324
N
sing
Y
325
N
doub
Y
326
N
sing
Y
327
N
sing
N
328
N
sing
Y
329
N
sing
Y
330
N
doub
N
331
N
sing
Y
332
N
doub
N
333
N
sing
Y
334
N
sing
N
335
N
sing
N
336
N
sing
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
doub
N
345
N
sing
N
346
N
sing
N
347
N
sing
N
348
N
sing
Y
349
N
doub
Y
350
N
sing
Y
351
N
sing
N
352
N
sing
Y
353
N
doub
N
354
N
sing
Y
355
N
doub
N
356
N
sing
Y
357
N
sing
N
358
N
sing
N
359
N
sing
N
360
N
sing
N
361
N
sing
N
362
N
sing
N
363
N
sing
N
364
N
sing
N
365
N
sing
N
366
N
sing
N
367
N
sing
N
368
N
doub
N
369
N
sing
N
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
US
Biochem.Biophys.Res.Commun.
BBRCA9
0146
0006-291X
308
545
552
10.1016/S0006-291X(03)01431-1
12914785
Crystal structure of human purine nucleoside phosphorylase at 2.3A resolution.
2003
US
Proc.Natl.Acad.Sci.USA
PNASA6
0040
0027-8424
88
11540
11544
Application of Crystallographic and Modeling Methods in the Design of Purine Nucleoside Phosphorylase Inhibitors
1991
10.2210/pdb1m73/pdb
pdb_00001m73
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
104
1
IMAGE PLATE
2002-06-19
MARRESEARCH
GRAPHITE
SINGLE WAVELENGTH
M
x-ray
1
1.4538
1.0
D03B-MX1
LNLS
1.4538
1.4538
SYNCHROTRON
LNLS BEAMLINE D03B-MX1
32053.682
PURINE NUCLEOSIDE PHOSPHORYLASE
2.4.2.1
1
man
polymer
96.063
SULFATE ION
3
syn
non-polymer
18.015
water
68
nat
water
Inosine phosphorylase, PNP
no
no
ENGYTYEDYKNTAEWLLSHTKHRPQVAIICGSGLGGLTDKLTQAQIFDYSEIPNFPRSTVPGHAGRLVFGFLNGRACVMM
QGRFHMYEGYPLWKVTFPVRVFHLLGVDTLVVTNAAGGLNPKFEVGDIMLIRDHINLPGFSGQNPLRGPNDERFGDRFPA
MSDAYDRTMRQRALSTWKQMGEQRELQEGTYVMVAGPSFETVAECRVLQKLGADAVGMSTVPEVIVARHCGLRVFGFSLI
TNKVIMDYESLEKANHEEVLAAGKQAAQKLEQFVSILMASIPLPDKAS
ENGYTYEDYKNTAEWLLSHTKHRPQVAIICGSGLGGLTDKLTQAQIFDYSEIPNFPRSTVPGHAGRLVFGFLNGRACVMM
QGRFHMYEGYPLWKVTFPVRVFHLLGVDTLVVTNAAGGLNPKFEVGDIMLIRDHINLPGFSGQNPLRGPNDERFGDRFPA
MSDAYDRTMRQRALSTWKQMGEQRELQEGTYVMVAGPSFETVAECRVLQKLGADAVGMSTVPEVIVARHCGLRVFGFSLI
TNKVIMDYESLEKANHEEVLAAGKQAAQKLEQFVSILMASIPLPDKAS
E
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
n
n
n
n
n
n
n
human
Homo
Escherichia
sample
9606
Homo sapiens
562
Escherichia coli
plasmid
pET-23A+
1
4.92
75.0
VAPOR DIFFUSION, HANGING DROP
5.3
0.05M citrate buffer, 19% ammonium sulphate, pH 5.3, VAPOR DIFFUSION, HANGING DROP, temperature 298K
298
chem_comp_atom
chem_comp_bond
database_2
pdbx_initial_refinement_model
struct_site
repository
Initial release
Version format compliance
Derived calculations
Version format compliance
Data collection
Database references
Derived calculations
Refinement description
1
0
2003-09-16
1
1
2008-04-28
1
2
2011-07-13
1
3
2023-10-25
_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
1ULA contains Application of crystallographic and modeling methods in the design of purine nucleoside phosphorylase inhibitor
RCSB
Y
PDBJ
2002-07-18
REL
REL
SO4
SULFATE ION
HOH
water
1ULA
PDB
experimental model
SO4
291
2
SO4
SO4
291
E
SO4
292
2
SO4
SO4
292
E
SO4
290
2
SO4
SO4
290
E
HOH
293
3
HOH
HOH
293
E
HOH
294
3
HOH
HOH
294
E
HOH
295
3
HOH
HOH
295
E
HOH
296
3
HOH
HOH
296
E
HOH
297
3
HOH
HOH
297
E
HOH
298
3
HOH
HOH
298
E
HOH
299
3
HOH
HOH
299
E
HOH
300
3
HOH
HOH
300
E
HOH
301
3
HOH
HOH
301
E
HOH
302
3
HOH
HOH
302
E
HOH
303
3
HOH
HOH
303
E
HOH
304
3
HOH
HOH
304
E
HOH
305
3
HOH
HOH
305
E
HOH
306
3
HOH
HOH
306
E
HOH
307
3
HOH
HOH
307
E
HOH
308
3
HOH
HOH
308
E
HOH
309
3
HOH
HOH
309
E
HOH
310
3
HOH
HOH
310
E
HOH
311
3
HOH
HOH
311
E
HOH
312
3
HOH
HOH
312
E
HOH
313
3
HOH
HOH
313
E
HOH
314
3
HOH
HOH
314
E
HOH
315
3
HOH
HOH
315
E
HOH
316
3
HOH
HOH
316
E
HOH
317
3
HOH
HOH
317
E
HOH
318
3
HOH
HOH
318
E
HOH
319
3
HOH
HOH
319
E
HOH
320
3
HOH
HOH
320
E
HOH
321
3
HOH
HOH
321
E
HOH
322
3
HOH
HOH
322
E
HOH
323
3
HOH
HOH
323
E
HOH
324
3
HOH
HOH
324
E
HOH
325
3
HOH
HOH
325
E
HOH
326
3
HOH
HOH
326
E
HOH
327
3
HOH
HOH
327
E
HOH
328
3
HOH
HOH
328
E
HOH
329
3
HOH
HOH
329
E
HOH
330
3
HOH
HOH
330
E
HOH
331
3
HOH
HOH
331
E
HOH
332
3
HOH
HOH
332
E
HOH
333
3
HOH
HOH
333
E
HOH
334
3
HOH
HOH
334
E
HOH
335
3
HOH
HOH
335
E
HOH
336
3
HOH
HOH
336
E
HOH
337
3
HOH
HOH
337
E
HOH
338
3
HOH
HOH
338
E
HOH
339
3
HOH
HOH
339
E
HOH
340
3
HOH
HOH
340
E
HOH
341
3
HOH
HOH
341
E
HOH
342
3
HOH
HOH
342
E
HOH
343
3
HOH
HOH
343
E
HOH
344
3
HOH
HOH
344
E
HOH
345
3
HOH
HOH
345
E
HOH
346
3
HOH
HOH
346
E
HOH
347
3
HOH
HOH
347
E
HOH
348
3
HOH
HOH
348
E
HOH
349
3
HOH
HOH
349
E
HOH
350
3
HOH
HOH
350
E
HOH
351
3
HOH
HOH
351
E
HOH
352
3
HOH
HOH
352
E
HOH
353
3
HOH
HOH
353
E
HOH
354
3
HOH
HOH
354
E
HOH
355
3
HOH
HOH
355
E
HOH
356
3
HOH
HOH
356
E
HOH
357
3
HOH
HOH
357
E
HOH
358
3
HOH
HOH
358
E
HOH
359
3
HOH
HOH
359
E
HOH
360
3
HOH
HOH
360
E
GLU
2
n
1
GLU
2
E
ASN
3
n
2
ASN
3
E
GLY
4
n
3
GLY
4
E
TYR
5
n
4
TYR
5
E
THR
6
n
5
THR
6
E
TYR
7
n
6
TYR
7
E
GLU
8
n
7
GLU
8
E
ASP
9
n
8
ASP
9
E
TYR
10
n
9
TYR
10
E
LYS
11
n
10
LYS
11
E
ASN
12
n
11
ASN
12
E
THR
13
n
12
THR
13
E
ALA
14
n
13
ALA
14
E
GLU
15
n
14
GLU
15
E
TRP
16
n
15
TRP
16
E
LEU
17
n
16
LEU
17
E
LEU
18
n
17
LEU
18
E
SER
19
n
18
SER
19
E
HIS
20
n
19
HIS
20
E
THR
21
n
20
THR
21
E
LYS
22
n
21
LYS
22
E
HIS
23
n
22
HIS
23
E
ARG
24
n
23
ARG
24
E
PRO
25
n
24
PRO
25
E
GLN
26
n
25
GLN
26
E
VAL
27
n
26
VAL
27
E
ALA
28
n
27
ALA
28
E
ILE
29
n
28
ILE
29
E
ILE
30
n
29
ILE
30
E
CYS
31
n
30
CYS
31
E
GLY
32
n
31
GLY
32
E
SER
33
n
32
SER
33
E
GLY
34
n
33
GLY
34
E
LEU
35
n
34
LEU
35
E
GLY
36
n
35
GLY
36
E
GLY
37
n
36
GLY
37
E
LEU
38
n
37
LEU
38
E
THR
39
n
38
THR
39
E
ASP
40
n
39
ASP
40
E
LYS
41
n
40
LYS
41
E
LEU
42
n
41
LEU
42
E
THR
43
n
42
THR
43
E
GLN
44
n
43
GLN
44
E
ALA
45
n
44
ALA
45
E
GLN
46
n
45
GLN
46
E
ILE
47
n
46
ILE
47
E
PHE
48
n
47
PHE
48
E
ASP
49
n
48
ASP
49
E
TYR
50
n
49
TYR
50
E
SER
51
n
50
SER
51
E
GLU
52
n
51
GLU
52
E
ILE
53
n
52
ILE
53
E
PRO
54
n
53
PRO
54
E
ASN
55
n
54
ASN
55
E
PHE
56
n
55
PHE
56
E
PRO
57
n
56
PRO
57
E
ARG
58
n
57
ARG
58
E
SER
59
n
58
SER
59
E
THR
60
n
59
THR
60
E
VAL
61
n
60
VAL
61
E
PRO
62
n
61
PRO
62
E
GLY
63
n
62
GLY
63
E
HIS
64
n
63
HIS
64
E
ALA
65
n
64
ALA
65
E
GLY
66
n
65
GLY
66
E
ARG
67
n
66
ARG
67
E
LEU
68
n
67
LEU
68
E
VAL
69
n
68
VAL
69
E
PHE
70
n
69
PHE
70
E
GLY
71
n
70
GLY
71
E
PHE
72
n
71
PHE
72
E
LEU
73
n
72
LEU
73
E
ASN
74
n
73
ASN
74
E
GLY
75
n
74
GLY
75
E
ARG
76
n
75
ARG
76
E
ALA
77
n
76
ALA
77
E
CYS
78
n
77
CYS
78
E
VAL
79
n
78
VAL
79
E
MET
80
n
79
MET
80
E
MET
81
n
80
MET
81
E
GLN
82
n
81
GLN
82
E
GLY
83
n
82
GLY
83
E
ARG
84
n
83
ARG
84
E
PHE
85
n
84
PHE
85
E
HIS
86
n
85
HIS
86
E
MET
87
n
86
MET
87
E
TYR
88
n
87
TYR
88
E
GLU
89
n
88
GLU
89
E
GLY
90
n
89
GLY
90
E
TYR
91
n
90
TYR
91
E
PRO
92
n
91
PRO
92
E
LEU
93
n
92
LEU
93
E
TRP
94
n
93
TRP
94
E
LYS
95
n
94
LYS
95
E
VAL
96
n
95
VAL
96
E
THR
97
n
96
THR
97
E
PHE
98
n
97
PHE
98
E
PRO
99
n
98
PRO
99
E
VAL
100
n
99
VAL
100
E
ARG
101
n
100
ARG
101
E
VAL
102
n
101
VAL
102
E
PHE
103
n
102
PHE
103
E
HIS
104
n
103
HIS
104
E
LEU
105
n
104
LEU
105
E
LEU
106
n
105
LEU
106
E
GLY
107
n
106
GLY
107
E
VAL
108
n
107
VAL
108
E
ASP
109
n
108
ASP
109
E
THR
110
n
109
THR
110
E
LEU
111
n
110
LEU
111
E
VAL
112
n
111
VAL
112
E
VAL
113
n
112
VAL
113
E
THR
114
n
113
THR
114
E
ASN
115
n
114
ASN
115
E
ALA
116
n
115
ALA
116
E
ALA
117
n
116
ALA
117
E
GLY
118
n
117
GLY
118
E
GLY
119
n
118
GLY
119
E
LEU
120
n
119
LEU
120
E
ASN
121
n
120
ASN
121
E
PRO
122
n
121
PRO
122
E
LYS
123
n
122
LYS
123
E
PHE
124
n
123
PHE
124
E
GLU
125
n
124
GLU
125
E
VAL
126
n
125
VAL
126
E
GLY
127
n
126
GLY
127
E
ASP
128
n
127
ASP
128
E
ILE
129
n
128
ILE
129
E
MET
130
n
129
MET
130
E
LEU
131
n
130
LEU
131
E
ILE
132
n
131
ILE
132
E
ARG
133
n
132
ARG
133
E
ASP
134
n
133
ASP
134
E
HIS
135
n
134
HIS
135
E
ILE
136
n
135
ILE
136
E
ASN
137
n
136
ASN
137
E
LEU
138
n
137
LEU
138
E
PRO
139
n
138
PRO
139
E
GLY
140
n
139
GLY
140
E
PHE
141
n
140
PHE
141
E
SER
142
n
141
SER
142
E
GLY
143
n
142
GLY
143
E
GLN
144
n
143
GLN
144
E
ASN
145
n
144
ASN
145
E
PRO
146
n
145
PRO
146
E
LEU
147
n
146
LEU
147
E
ARG
148
n
147
ARG
148
E
GLY
149
n
148
GLY
149
E
PRO
150
n
149
PRO
150
E
ASN
151
n
150
ASN
151
E
ASP
152
n
151
ASP
152
E
GLU
153
n
152
GLU
153
E
ARG
154
n
153
ARG
154
E
PHE
155
n
154
PHE
155
E
GLY
156
n
155
GLY
156
E
ASP
157
n
156
ASP
157
E
ARG
158
n
157
ARG
158
E
PHE
159
n
158
PHE
159
E
PRO
160
n
159
PRO
160
E
ALA
161
n
160
ALA
161
E
MET
162
n
161
MET
162
E
SER
163
n
162
SER
163
E
ASP
164
n
163
ASP
164
E
ALA
165
n
164
ALA
165
E
TYR
166
n
165
TYR
166
E
ASP
167
n
166
ASP
167
E
ARG
168
n
167
ARG
168
E
THR
169
n
168
THR
169
E
MET
170
n
169
MET
170
E
ARG
171
n
170
ARG
171
E
GLN
172
n
171
GLN
172
E
ARG
173
n
172
ARG
173
E
ALA
174
n
173
ALA
174
E
LEU
175
n
174
LEU
175
E
SER
176
n
175
SER
176
E
THR
177
n
176
THR
177
E
TRP
178
n
177
TRP
178
E
LYS
179
n
178
LYS
179
E
GLN
180
n
179
GLN
180
E
MET
181
n
180
MET
181
E
GLY
182
n
181
GLY
182
E
GLU
183
n
182
GLU
183
E
GLN
184
n
183
GLN
184
E
ARG
185
n
184
ARG
185
E
GLU
186
n
185
GLU
186
E
LEU
187
n
186
LEU
187
E
GLN
188
n
187
GLN
188
E
GLU
189
n
188
GLU
189
E
GLY
190
n
189
GLY
190
E
THR
191
n
190
THR
191
E
TYR
192
n
191
TYR
192
E
VAL
193
n
192
VAL
193
E
MET
194
n
193
MET
194
E
VAL
195
n
194
VAL
195
E
ALA
196
n
195
ALA
196
E
GLY
197
n
196
GLY
197
E
PRO
198
n
197
PRO
198
E
SER
199
n
198
SER
199
E
PHE
200
n
199
PHE
200
E
GLU
201
n
200
GLU
201
E
THR
202
n
201
THR
202
E
VAL
203
n
202
VAL
203
E
ALA
204
n
203
ALA
204
E
GLU
205
n
204
GLU
205
E
CYS
206
n
205
CYS
206
E
ARG
207
n
206
ARG
207
E
VAL
208
n
207
VAL
208
E
LEU
209
n
208
LEU
209
E
GLN
210
n
209
GLN
210
E
LYS
211
n
210
LYS
211
E
LEU
212
n
211
LEU
212
E
GLY
213
n
212
GLY
213
E
ALA
214
n
213
ALA
214
E
ASP
215
n
214
ASP
215
E
ALA
216
n
215
ALA
216
E
VAL
217
n
216
VAL
217
E
GLY
218
n
217
GLY
218
E
MET
219
n
218
MET
219
E
SER
220
n
219
SER
220
E
THR
221
n
220
THR
221
E
VAL
222
n
221
VAL
222
E
PRO
223
n
222
PRO
223
E
GLU
224
n
223
GLU
224
E
VAL
225
n
224
VAL
225
E
ILE
226
n
225
ILE
226
E
VAL
227
n
226
VAL
227
E
ALA
228
n
227
ALA
228
E
ARG
229
n
228
ARG
229
E
HIS
230
n
229
HIS
230
E
CYS
231
n
230
CYS
231
E
GLY
232
n
231
GLY
232
E
LEU
233
n
232
LEU
233
E
ARG
234
n
233
ARG
234
E
VAL
235
n
234
VAL
235
E
PHE
236
n
235
PHE
236
E
GLY
237
n
236
GLY
237
E
PHE
238
n
237
PHE
238
E
SER
239
n
238
SER
239
E
LEU
240
n
239
LEU
240
E
ILE
241
n
240
ILE
241
E
THR
242
n
241
THR
242
E
ASN
243
n
242
ASN
243
E
LYS
244
n
243
LYS
244
E
VAL
245
n
244
VAL
245
E
ILE
246
n
245
ILE
246
E
MET
247
n
246
MET
247
E
ASP
248
n
247
ASP
248
E
TYR
249
n
248
TYR
249
E
GLU
250
n
249
GLU
250
E
SER
251
n
250
SER
251
E
LEU
252
n
251
LEU
252
E
GLU
253
n
252
GLU
253
E
LYS
254
n
253
LYS
254
E
ALA
255
n
254
ALA
255
E
ASN
256
n
255
ASN
256
E
HIS
257
n
256
HIS
257
E
GLU
258
n
257
GLU
258
E
GLU
259
n
258
GLU
259
E
VAL
260
n
259
VAL
260
E
LEU
261
n
260
LEU
261
E
ALA
262
n
261
ALA
262
E
ALA
263
n
262
ALA
263
E
GLY
264
n
263
GLY
264
E
LYS
265
n
264
LYS
265
E
GLN
266
n
265
GLN
266
E
ALA
267
n
266
ALA
267
E
ALA
268
n
267
ALA
268
E
GLN
269
n
268
GLN
269
E
LYS
270
n
269
LYS
270
E
LEU
271
n
270
LEU
271
E
GLU
272
n
271
GLU
272
E
GLN
273
n
272
GLN
273
E
PHE
274
n
273
PHE
274
E
VAL
275
n
274
VAL
275
E
SER
276
n
275
SER
276
E
ILE
277
n
276
ILE
277
E
LEU
278
n
277
LEU
278
E
MET
279
n
278
MET
279
E
ALA
280
n
279
ALA
280
E
SER
281
n
280
SER
281
E
ILE
282
n
281
ILE
282
E
PRO
283
n
282
PRO
283
E
LEU
284
n
283
LEU
284
E
PRO
285
n
284
PRO
285
E
ASP
286
n
285
ASP
286
E
LYS
287
n
286
LYS
287
E
ALA
288
n
287
ALA
288
E
SER
289
n
288
SER
289
E
author_and_software_defined_assembly
PISA,PQS
3
trimeric
8770
-180
31660
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
2_655
-y+1,x-y,z
crystal symmetry operation
141.6300000000
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
70.8150000000
122.6551779380
0.0000000000
E
O
PHE
48
A
O
PHE
47
E
N
LEU
68
A
N
LEU
67
E
O
LEU
73
A
O
LEU
72
E
N
ARG
76
A
N
ARG
75
E
O
ALA
77
A
O
ALA
76
E
N
VAL
27
A
N
VAL
26
E
N
ALA
28
A
N
ALA
27
E
O
THR
110
A
O
THR
109
E
N
GLY
118
A
N
GLY
117
E
O
VAL
217
A
O
VAL
216
E
N
ALA
216
A
N
ALA
215
E
O
THR
191
A
O
THR
190
E
N
GLN
188
A
N
GLN
187
E
O
ILE
129
A
O
ILE
128
E
N
ILE
132
A
N
ILE
131
E
O
GLY
237
A
O
GLY
236
E
O
ARG
234
A
O
ARG
233
E
N
LEU
111
A
N
LEU
110
1
10.08
1.50
119.30
129.38
E
E
E
C
N
CA
ILE
PRO
PRO
53
54
54
Y
1
E
ASN
3
-41.83
176.16
1
E
PRO
54
-18.47
-74.06
1
E
VAL
61
-134.11
-54.09
1
E
ASN
74
32.04
44.62
1
E
PHE
159
-117.04
69.30
1
E
GLN
184
-56.61
-78.67
1
E
ALA
196
-79.62
-154.02
1
E
SER
220
-155.22
-156.45
1
E
THR
221
71.24
-65.68
1
E
ASN
243
-179.06
142.43
1
E
TYR
249
-56.51
87.88
1
E
HIS
257
-138.78
-34.08
1
E
LEU
261
56.67
-143.70
1
E
LYS
265
-28.84
-65.05
1
E
ASP
286
-73.63
23.14
16.75
0.222
0.205
0.259
0.239
2.3
8.00
2588
25740
25740
10
87.6
RANDOM
2
2
1
THROUGHOUT
2
MOLECULAR REPLACEMENT
1ULA
Engh & Huber
0.26
8.0
2.3
8.00
68
2334
15
0
2251
0.009
1.48
25.18
1.332
2.3
24.25
1M73
26429
26429
2.000
2.000
0.087
1
1.842
94.13
0.197
2.3
2.4
1
87.6
data reduction
DENZO
data scaling
SCALEPACK
phasing
AMoRE
refinement
X-PLOR
CRYSTAL STRUCTURE OF HUMAN PNP AT 2.3A RESOLUTION
1
N
N
2
N
N
2
N
N
2
N
N
3
N
N
E
THR
6
A
THR
5
HELX_P
E
SER
19
A
SER
18
1
1
14
E
LEU
35
A
LEU
34
HELX_P
E
LEU
42
A
LEU
41
5
2
8
E
PRO
62
A
PRO
61
HELX_P
E
ALA
65
A
ALA
64
5
3
4
E
HIS
86
A
HIS
85
HELX_P
E
GLY
90
A
GLY
89
5
4
5
E
PRO
92
A
PRO
91
HELX_P
E
THR
97
A
THR
96
1
5
6
E
THR
97
A
THR
96
HELX_P
E
LEU
105
A
LEU
104
1
6
9
E
LEU
138
A
LEU
137
HELX_P
E
SER
142
A
SER
141
1
7
5
E
ASP
167
A
ASP
166
HELX_P
E
GLY
182
A
GLY
181
1
8
16
E
THR
202
A
THR
201
HELX_P
E
GLY
213
A
GLY
212
1
9
12
E
THR
221
A
THR
220
HELX_P
E
CYS
231
A
CYS
230
1
10
11
E
LEU
261
A
LEU
260
HELX_P
E
LEU
278
A
LEU
277
1
11
18
E
MET
279
A
MET
278
HELX_P
E
ILE
282
A
ILE
281
5
12
4
TRANSFERASE
Purine Nucleoside Phosphorylase, drug design, synchrotron, TRANSFERASE
PNPH_HUMAN
UNP
1
2
P00491
ENGYTYEDYKNTAEWLLSHTKHRPQVAIICGSGLGGLTDKLTQAQIFDYSEIPNFPRSTVPGHAGRLVFGFLNGRACVMM
QGRFHMYEGYPLWKVTFPVRVFHLLGVDTLVVTNAAGGLNPKFEVGDIMLIRDHINLPGFSGQNPLRGPNDERFGDRFPA
MSDAYDRTMRQRALSTWKQMGEQRELQEGTYVMVAGPSFETVAECRVLQKLGADAVGMSTVPEVIVARHCGLRVFGFSLI
TNKVIMDYESLEKANHEEVLAAGKQAAQKLEQFVSILMASIPLPDKAS
2
289
1M73
2
289
P00491
E
1
1
288
10
anti-parallel
anti-parallel
parallel
parallel
anti-parallel
parallel
parallel
anti-parallel
parallel
E
THR
43
A
THR
42
E
ASP
49
A
ASP
48
E
ARG
67
A
ARG
66
E
LEU
73
A
LEU
72
E
ARG
76
A
ARG
75
E
GLN
82
A
GLN
81
E
VAL
27
A
VAL
26
E
CYS
31
A
CYS
30
E
THR
110
A
THR
109
E
GLY
119
A
GLY
118
E
ALA
216
A
ALA
215
E
GLY
218
A
GLY
217
E
GLN
188
A
GLN
187
E
MET
194
A
MET
193
E
ILE
129
A
ILE
128
E
ASN
137
A
ASN
136
E
ARG
234
A
ARG
233
E
LYS
244
A
LYS
243
E
THR
110
A
THR
109
E
GLY
119
A
GLY
118
BINDING SITE FOR RESIDUE SO4 E 291
E
SO4
291
Software
6
BINDING SITE FOR RESIDUE SO4 E 292
E
SO4
292
Software
3
BINDING SITE FOR RESIDUE SO4 E 290
E
SO4
290
Software
8
E
GLY
32
A
GLY
31
6
1_555
E
GLY
34
A
GLY
33
6
1_555
E
LEU
35
A
LEU
34
6
1_555
E
GLY
36
A
GLY
35
6
1_555
E
GLN
82
A
GLN
81
6
1_555
E
HOH
356
E
HOH
6
1_555
E
PRO
92
A
PRO
91
3
1_555
E
GLN
144
A
GLN
143
3
1_555
E
ARG
148
A
ARG
147
3
3_665
E
GLY
32
A
GLY
31
8
1_555
E
SER
33
A
SER
32
8
1_555
E
ARG
84
A
ARG
83
8
1_555
E
HIS
86
A
HIS
85
8
1_555
E
THR
114
A
THR
113
8
1_555
E
ASN
115
A
ASN
114
8
1_555
E
ALA
116
A
ALA
115
8
1_555
E
SER
220
A
SER
219
8
1_555
155
H 3 2