0.00719
0.00415
0.00000
0.00000
0.00830
0.00000
0.00000
0.00000
0.00623
0.00000
0.00000
0.00000
Dos Santos, D.M.
Canduri, F.
Pereira, J.H.
Vinicius Bertacine Dias, M.
Silva, R.G.
Mendes, M.A.
Palma, M.S.
Basso, L.A.
De Azevedo, W.F.
Santos, D.S.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
18
90.00
90.00
120.00
139.060
139.060
160.570
C8 H11 N5 O3
225.205
9-HYROXYETHOXYMETHYLGUANINE
non-polymer
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
C
N
2
N
O
N
3
N
C
N
4
N
O
N
5
N
C
Y
6
N
N
Y
7
N
C
Y
8
N
N
Y
9
N
C
N
10
N
C
N
11
N
O
N
12
N
N
N
13
N
C
N
14
N
N
N
15
N
N
Y
16
N
C
N
17
N
H
N
18
N
H
N
19
N
H
N
20
N
H
N
21
N
H
N
22
N
H
N
23
N
H
N
24
N
H
N
25
N
H
N
26
N
H
N
27
N
H
N
28
N
N
N
29
S
C
N
30
N
C
N
31
N
O
N
32
N
C
N
33
N
O
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
C
N
48
N
N
N
49
N
C
N
50
N
N
N
51
N
N
N
52
N
O
N
53
N
H
N
54
N
H
N
55
N
H
N
56
N
H
N
57
N
H
N
58
N
H
N
59
N
H
N
60
N
H
N
61
N
H
N
62
N
H
N
63
N
H
N
64
N
H
N
65
N
H
N
66
N
H
N
67
N
H
N
68
N
N
N
69
S
C
N
70
N
C
N
71
N
O
N
72
N
C
N
73
N
C
N
74
N
O
N
75
N
N
N
76
N
O
N
77
N
H
N
78
N
H
N
79
N
H
N
80
N
H
N
81
N
H
N
82
N
H
N
83
N
H
N
84
N
H
N
85
N
N
N
86
S
C
N
87
N
C
N
88
N
O
N
89
N
C
N
90
N
C
N
91
N
O
N
92
N
O
N
93
N
O
N
94
N
H
N
95
N
H
N
96
N
H
N
97
N
H
N
98
N
H
N
99
N
H
N
100
N
H
N
101
N
N
N
102
R
C
N
103
N
C
N
104
N
O
N
105
N
C
N
106
N
S
N
107
N
O
N
108
N
H
N
109
N
H
N
110
N
H
N
111
N
H
N
112
N
H
N
113
N
H
N
114
N
H
N
115
N
N
N
116
S
C
N
117
N
C
N
118
N
O
N
119
N
C
N
120
N
C
N
121
N
C
N
122
N
O
N
123
N
N
N
124
N
O
N
125
N
H
N
126
N
H
N
127
N
H
N
128
N
H
N
129
N
H
N
130
N
H
N
131
N
H
N
132
N
H
N
133
N
H
N
134
N
H
N
135
N
N
N
136
S
C
N
137
N
C
N
138
N
O
N
139
N
C
N
140
N
C
N
141
N
C
N
142
N
O
N
143
N
O
N
144
N
O
N
145
N
H
N
146
N
H
N
147
N
H
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
N
N
155
N
C
N
156
N
C
N
157
N
O
N
158
N
O
N
159
N
H
N
160
N
H
N
161
N
H
N
162
N
H
N
163
N
H
N
164
N
N
N
165
S
C
N
166
N
C
N
167
N
O
N
168
N
C
Y
169
N
C
Y
170
N
N
Y
171
N
C
Y
172
N
C
Y
173
N
N
N
174
N
O
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
H
N
184
N
H
N
185
N
O
N
186
N
H
N
187
N
H
N
188
N
N
N
189
S
C
N
190
N
C
N
191
N
O
N
192
S
C
N
193
N
C
N
194
N
C
N
195
N
C
N
196
N
O
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
H
N
206
N
H
N
207
N
H
N
208
N
H
N
209
N
H
N
210
N
N
N
211
S
C
N
212
N
C
N
213
N
O
N
214
N
C
N
215
N
C
N
216
N
C
N
217
N
C
N
218
N
O
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
H
N
231
N
H
N
232
N
N
N
233
S
C
N
234
N
C
N
235
N
O
N
236
N
C
N
237
N
C
N
238
N
C
N
239
N
C
N
240
N
N
N
241
N
O
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
H
N
251
N
H
N
252
N
H
N
253
N
H
N
254
N
H
N
255
N
H
N
256
N
H
N
257
N
N
N
258
S
C
N
259
N
C
N
260
N
O
N
261
N
C
N
262
N
C
N
263
N
S
N
264
N
C
N
265
N
O
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
H
N
274
N
H
N
275
N
H
N
276
N
H
N
277
N
N
N
278
S
C
N
279
N
C
N
280
N
O
N
281
N
C
Y
282
N
C
Y
283
N
C
Y
284
N
C
Y
285
N
C
Y
286
N
C
Y
287
N
C
N
288
N
O
N
289
N
H
N
290
N
H
N
291
N
H
N
292
N
H
N
293
N
H
N
294
N
H
N
295
N
H
N
296
N
H
N
297
N
H
N
298
N
H
N
299
N
H
N
300
N
N
N
301
S
C
N
302
N
C
N
303
N
O
N
304
N
C
N
305
N
C
N
306
N
C
N
307
N
O
N
308
N
H
N
309
N
H
N
310
N
H
N
311
N
H
N
312
N
H
N
313
N
H
N
314
N
H
N
315
N
H
N
316
N
H
N
317
N
N
N
318
S
C
N
319
N
C
N
320
N
O
N
321
N
C
N
322
N
O
N
323
N
O
N
324
N
H
N
325
N
H
N
326
N
H
N
327
N
H
N
328
N
H
N
329
N
H
N
330
N
H
N
331
N
S
N
332
N
O
N
333
N
O
N
334
N
O
N
335
N
O
N
336
N
N
N
337
S
C
N
338
N
C
N
339
N
O
N
340
R
C
N
341
N
O
N
342
N
C
N
343
N
O
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
N
Y
362
N
C
Y
363
N
C
Y
364
N
C
Y
365
N
C
Y
366
N
C
N
367
N
O
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
H
N
378
N
H
N
379
N
H
N
380
N
N
N
381
S
C
N
382
N
C
N
383
N
O
N
384
N
C
Y
385
N
C
Y
386
N
C
Y
387
N
C
Y
388
N
C
Y
389
N
C
Y
390
N
C
N
391
N
O
N
392
N
O
N
393
N
H
N
394
N
H
N
395
N
H
N
396
N
H
N
397
N
H
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
N
N
405
S
C
N
406
N
C
N
407
N
O
N
408
N
C
N
409
N
C
N
410
N
C
N
411
N
O
N
412
N
H
N
413
N
H
N
414
N
H
N
415
N
H
N
416
N
H
N
417
N
H
N
418
N
H
N
419
N
H
N
420
N
H
N
421
N
H
N
422
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
sing
N
8
N
sing
N
9
N
sing
N
10
N
sing
N
11
N
sing
N
12
N
sing
Y
13
N
sing
Y
14
N
sing
Y
15
N
doub
N
16
N
sing
Y
17
N
sing
N
18
N
sing
Y
19
N
doub
N
20
N
doub
N
21
N
sing
N
22
N
sing
N
23
N
sing
N
24
N
sing
N
25
N
doub
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
sing
N
34
N
sing
N
35
N
doub
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
sing
N
46
N
sing
N
47
N
doub
N
48
N
sing
N
49
N
sing
N
50
N
sing
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
sing
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
doub
N
74
N
sing
N
75
N
sing
N
76
N
sing
N
77
N
sing
N
78
N
doub
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
doub
N
95
N
sing
N
96
N
sing
N
97
N
sing
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
doub
N
105
N
sing
N
106
N
sing
N
107
N
sing
N
108
N
sing
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
sing
N
117
N
doub
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
doub
N
126
N
sing
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
sing
N
136
N
doub
N
137
N
sing
N
138
N
sing
N
139
N
sing
N
140
N
sing
N
141
N
sing
N
142
N
sing
N
143
N
sing
N
144
N
doub
N
145
N
sing
N
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
doub
N
155
N
sing
N
156
N
sing
N
157
N
sing
N
158
N
sing
N
159
N
sing
N
160
N
sing
N
161
N
sing
N
162
N
sing
N
163
N
doub
N
164
N
sing
N
165
N
sing
N
166
N
sing
N
167
N
sing
Y
168
N
sing
Y
169
N
doub
Y
170
N
doub
N
171
N
sing
Y
172
N
sing
N
173
N
sing
Y
174
N
sing
N
175
N
sing
N
176
N
sing
N
177
N
sing
N
178
N
sing
N
179
N
sing
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
doub
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
sing
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
doub
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
sing
N
225
N
sing
N
226
N
sing
N
227
N
sing
N
228
N
doub
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
sing
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
doub
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
sing
N
263
N
sing
N
264
N
sing
N
265
N
sing
N
266
N
sing
N
267
N
sing
N
268
N
sing
N
269
N
sing
N
270
N
sing
N
271
N
doub
N
272
N
sing
N
273
N
sing
N
274
N
sing
N
275
N
sing
Y
276
N
doub
Y
277
N
sing
Y
278
N
sing
N
279
N
sing
Y
280
N
doub
N
281
N
sing
Y
282
N
doub
N
283
N
sing
Y
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
sing
N
291
N
sing
N
292
N
sing
N
293
N
sing
N
294
N
doub
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
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
doub
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
doub
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
sing
N
327
N
sing
N
328
N
doub
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
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
Y
354
N
sing
Y
355
N
sing
N
356
N
sing
Y
357
N
sing
Y
358
N
doub
N
359
N
sing
Y
360
N
doub
N
361
N
sing
Y
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
sing
N
369
N
sing
N
370
N
sing
N
371
N
sing
N
372
N
doub
N
373
N
sing
N
374
N
sing
N
375
N
sing
N
376
N
sing
Y
377
N
doub
Y
378
N
sing
Y
379
N
sing
N
380
N
sing
Y
381
N
doub
N
382
N
sing
Y
383
N
doub
N
384
N
sing
Y
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
N
395
N
sing
N
396
N
doub
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
sing
N
405
N
sing
N
406
N
sing
N
407
N
sing
US
Biochem.Biophys.Res.Commun.
BBRCA9
0146
0006-291X
308
553
559
10.1016/S0006-291X(03)01433-5
12914786
Crystal structure of human purine nucleoside phosphorylase complexed with acyclovir.
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/pdb1pwy/pdb
pdb_00001pwy
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
104.0
1
CCD
2003-04-16
MARRESEARCH
GRAPHITE
SINGLE WAVELENGTH
M
x-ray
1
1.4310
1.0
1.431
1.0
D03B-MX1
LNLS
1.4310
1.431
SYNCHROTRON
LNLS BEAMLINE D03B-MX1
COMPLEXED WITH ACYCLOVIR
32053.682
Purine nucleoside phosphorylase
2.4.2.1
1
man
polymer
96.063
SULFATE ION
3
syn
non-polymer
225.205
9-HYROXYETHOXYMETHYLGUANINE
1
syn
non-polymer
18.015
water
43
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
PNP
9606
Homo sapiens
562
Escherichia coli
PLASMID
1
4.65
74.0
VAPOR DIFFUSION, HANGING DROP
5.30
17.5% AMMONIUM SULFATE, pH 5.30, VAPOR DIFFUSION, HANGING DROP, temperature 293K
293
citation_author
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
Database references
Data collection
Database references
Derived calculations
Refinement description
1
0
2004-03-23
1
1
2008-04-29
1
2
2011-07-13
1
3
2018-01-24
1
4
2023-08-16
_citation_author.name
_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
CRYSTAL STRUCTURE OF HUMAN PNP AT 2.3A RESOLUTION
CRYSTAL STRUCTURE OF HUMAN PNP COMPLEXED WITH IMMUCILLIN H
RCSB
Y
RCSB
2003-07-02
REL
REL
SO4
SULFATE ION
AC2
9-HYROXYETHOXYMETHYLGUANINE
HOH
water
1M73
PDB entry 1M73
PDB
experimental model
SO4
291
2
SO4
SO4
291
E
SO4
292
2
SO4
SO4
292
E
SO4
293
2
SO4
SO4
293
E
ACY
290
3
AC2
AC2
290
E
WAT
294
4
HOH
HOH
294
E
WAT
295
4
HOH
HOH
295
E
WAT
296
4
HOH
HOH
296
E
WAT
297
4
HOH
HOH
297
E
WAT
298
4
HOH
HOH
298
E
WAT
299
4
HOH
HOH
299
E
WAT
300
4
HOH
HOH
300
E
WAT
301
4
HOH
HOH
301
E
WAT
302
4
HOH
HOH
302
E
WAT
303
4
HOH
HOH
303
E
WAT
304
4
HOH
HOH
304
E
WAT
305
4
HOH
HOH
305
E
WAT
306
4
HOH
HOH
306
E
WAT
307
4
HOH
HOH
307
E
WAT
308
4
HOH
HOH
308
E
WAT
309
4
HOH
HOH
309
E
WAT
310
4
HOH
HOH
310
E
WAT
311
4
HOH
HOH
311
E
WAT
312
4
HOH
HOH
312
E
WAT
313
4
HOH
HOH
313
E
WAT
314
4
HOH
HOH
314
E
WAT
315
4
HOH
HOH
315
E
WAT
316
4
HOH
HOH
316
E
WAT
317
4
HOH
HOH
317
E
WAT
318
4
HOH
HOH
318
E
WAT
319
4
HOH
HOH
319
E
WAT
320
4
HOH
HOH
320
E
WAT
321
4
HOH
HOH
321
E
WAT
322
4
HOH
HOH
322
E
WAT
323
4
HOH
HOH
323
E
WAT
324
4
HOH
HOH
324
E
WAT
325
4
HOH
HOH
325
E
WAT
326
4
HOH
HOH
326
E
WAT
327
4
HOH
HOH
327
E
WAT
328
4
HOH
HOH
328
E
WAT
329
4
HOH
HOH
329
E
WAT
330
4
HOH
HOH
330
E
WAT
331
4
HOH
HOH
331
E
WAT
332
4
HOH
HOH
332
E
WAT
333
4
HOH
HOH
333
E
WAT
334
4
HOH
HOH
334
E
WAT
335
4
HOH
HOH
335
E
WAT
336
4
HOH
HOH
336
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
10920
-169
28720
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_665
-y+1,x-y+1,z
crystal symmetry operation
69.5300000000
120.4294926503
0.0000000000
-0.5000000000
0.8660254038
0.0000000000
-0.8660254038
-0.5000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
3_565
-x+y,-x+1,z
crystal symmetry operation
-69.5300000000
120.4294926503
0.0000000000
E
N
PHE
48
A
N
PHE
47
E
O
LEU
68
A
O
LEU
67
E
N
ARG
67
A
N
ARG
66
E
O
GLN
82
A
O
GLN
81
E
O
MET
81
A
O
MET
80
E
N
CYS
31
A
N
CYS
30
E
N
ALA
28
A
N
ALA
27
E
O
THR
110
A
O
THR
109
E
N
LEU
111
A
N
LEU
110
E
O
ARG
234
A
O
ARG
233
E
O
SER
239
A
O
SER
238
E
N
MET
130
A
N
MET
129
E
N
LEU
131
A
N
LEU
130
E
O
GLN
188
A
O
GLN
187
E
N
VAL
193
A
N
VAL
192
E
O
ALA
216
A
O
ALA
215
E
O
VAL
217
A
O
VAL
216
E
N
GLY
118
A
N
GLY
117
E
N
ALA
117
A
N
ALA
116
E
O
THR
242
A
O
THR
241
1
9.26
1.50
119.30
128.56
E
E
E
C
N
CA
GLY
PRO
PRO
197
198
198
Y
1
E
ASN
3
-46.31
173.49
1
E
SER
19
-65.72
17.20
1
E
PRO
54
-25.67
-54.59
1
E
THR
60
-98.44
-138.92
1
E
HIS
64
-74.95
40.91
1
E
ALA
65
171.24
68.32
1
E
PHE
72
-162.36
115.71
1
E
ASN
74
36.12
51.86
1
E
VAL
79
-163.45
95.71
1
E
TYR
88
-57.45
-1.80
1
E
ASN
115
-179.22
146.56
1
E
ARG
173
-75.75
28.98
1
E
ALA
174
-148.06
-37.98
1
E
GLN
180
-27.56
-64.02
1
E
GLN
184
67.81
-88.03
1
E
LEU
187
-55.17
105.51
1
E
SER
199
-32.09
152.87
1
E
GLU
201
-47.55
160.90
1
E
SER
220
179.83
-161.70
1
E
THR
221
73.29
-67.16
1
E
LEU
233
1.57
108.27
1
E
ILE
241
-57.68
104.75
1
E
SER
251
-88.16
-140.42
1
E
ALA
255
-154.66
46.53
1
E
LEU
261
-41.47
-17.35
1
E
LYS
265
-122.51
-135.09
1
E
LYS
287
99.64
-88.62
39.82
0.301
0.215
0.304
0.215
2.80
7.00
1251
12726
12508
10.000
91.51
RANDOM
1
THROUGHOUT
2.000
MOLECULAR REPLACEMENT
PDB entry 1M73
Engh & Huber
0.34
7.00
2.80
7.00
43
2325
31
0
2251
0.013
1.901
25.696
1.614
2.800
56.381
1PWY
50231
34461
2.0
2.000
0.071
1
7.5000
5.500
91.4
2.80
2.95
1.300
0.376
1
5.30
96.4
data reduction
MOSFLM
data scaling
SCALA
phasing
AMoRE
refinement
X-PLOR
data scaling
CCP4
(SCALA)
CRYSTAL STRUCTURE OF HUMAN PNP COMPLEXED WITH ACYCLOVIR
1
N
N
2
N
N
2
N
N
2
N
N
3
N
N
4
N
N
THE BIOLOGICAL ASSEMBLY IS A TRIMER GENERATED FROM THE MONOMER IN THE ASYMMETRIC UNIT
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
SER
51
A
SER
50
HELX_P
E
ILE
53
A
ILE
52
5
3
3
E
THR
60
A
THR
59
HELX_P
E
HIS
64
A
HIS
63
5
4
5
E
HIS
86
A
HIS
85
HELX_P
E
GLY
90
A
GLY
89
5
5
5
E
PRO
92
A
PRO
91
HELX_P
E
THR
97
A
THR
96
1
6
6
E
THR
97
A
THR
96
HELX_P
E
GLY
107
A
GLY
106
1
7
11
E
LEU
138
A
LEU
137
HELX_P
E
SER
142
A
SER
141
1
8
5
E
ASP
167
A
ASP
166
HELX_P
E
MET
181
A
MET
180
1
9
15
E
THR
202
A
THR
201
HELX_P
E
LEU
212
A
LEU
211
1
10
11
E
THR
221
A
THR
220
HELX_P
E
GLY
232
A
GLY
231
1
11
12
E
GLN
266
A
GLN
265
HELX_P
E
LEU
278
A
LEU
277
1
12
13
E
MET
279
A
MET
278
HELX_P
E
SER
281
A
SER
280
5
13
3
TRANSFERASE
PURINE NUCLEOSIDE PHOSPHORYLASE, DRUG DESIGN, SYNCHROTRON, ACYCLOVIR, TRANSFERASE
PNPH_HUMAN
UNP
1
2
P00491
ENGYTYEDYKNTAEWLLSHTKHRPQVAIICGSGLGGLTDKLTQAQIFDYSEIPNFPRSTVPGHAGRLVFGFLNGRACVMM
QGRFHMYEGYPLWKVTFPVRVFHLLGVDTLVVTNAAGGLNPKFEVGDIMLIRDHINLPGFSGQNPLRGPNDERFGDRFPA
MSDAYDRTMRQRALSTWKQMGEQRELQEGTYVMVAGPSFETVAECRVLQKLGADAVGMSTVPEVIVARHCGLRVFGFSLI
TNKVIMDYESLEKANHEEVLAAGKQAAQKLEQFVSILMASIPLPDKAS
2
289
1PWY
2
289
P00491
E
1
1
288
11
anti-parallel
anti-parallel
parallel
parallel
parallel
anti-parallel
parallel
parallel
anti-parallel
parallel
E
GLN
46
A
GLN
45
E
ASP
49
A
ASP
48
E
ARG
67
A
ARG
66
E
PHE
70
A
PHE
69
E
MET
80
A
MET
79
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
VAL
113
A
VAL
112
E
ARG
234
A
ARG
233
E
LYS
244
A
LYS
243
E
ILE
129
A
ILE
128
E
ASN
137
A
ASN
136
E
GLN
188
A
GLN
187
E
MET
194
A
MET
193
E
ALA
216
A
ALA
215
E
GLY
218
A
GLY
217
E
ALA
116
A
ALA
115
E
GLY
119
A
GLY
118
E
ARG
234
A
ARG
233
E
LYS
244
A
LYS
243
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 293
E
SO4
293
Software
8
BINDING SITE FOR RESIDUE AC2 E 290
E
AC2
290
Software
12
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
295
F
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_565
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
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
E
HOH
333
F
HOH
8
1_555
E
ALA
116
A
ALA
115
12
1_555
E
ALA
117
A
ALA
116
12
1_555
E
GLY
118
A
GLY
117
12
1_555
E
PHE
200
A
PHE
199
12
1_555
E
GLU
201
A
GLU
200
12
1_555
E
VAL
217
A
VAL
216
12
1_555
E
MET
219
A
MET
218
12
1_555
E
THR
242
A
THR
241
12
1_555
E
ASN
243
A
ASN
242
12
1_555
E
VAL
245
A
VAL
244
12
1_555
E
HIS
257
A
HIS
256
12
1_555
E
HOH
300
F
HOH
12
1_555
155
H 3 2