0.010789
0.000000
0.000000
0.000000
0.010789
0.000000
0.000000
0.000000
0.010789
0.00000
0.00000
0.00000
Fedorov, A.A.
Kicska, G.A.
Fedorov, E.V.
Shi, W.
Tyler, P.C.
Furneaux, R.H.
Schramm, V.L.
Almo, S.C.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
12
90.00
90.00
90.00
92.683
92.683
92.683
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
C11 H14 N4 O4
266.253
1,4-DIDEOXY-4-AZA-1-(S)-(9-DEAZAHYPOXANTHIN-9-YL)-D-RIBITOL
Forodesine; Immucillin H
non-polymer
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
Mg 2
24.305
MAGNESIUM ION
non-polymer
C9 H11 N O2
165.189
y
PHENYLALANINE
L-peptide linking
O4 P -3
94.971
PHOSPHATE ION
non-polymer
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
O
N
184
N
C
N
185
R
C
N
186
N
N
N
187
R
C
N
188
N
O
N
189
S
C
N
190
N
O
N
191
S
C
Y
192
N
C
Y
193
N
C
Y
194
N
N
Y
195
N
C
N
196
N
C
N
197
N
O
N
198
N
N
N
199
N
C
N
200
N
N
Y
201
N
C
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
H
N
211
N
H
N
212
N
H
N
213
N
H
N
214
N
H
N
215
N
H
N
216
N
N
N
217
S
C
N
218
N
C
N
219
N
O
N
220
N
C
N
221
N
C
N
222
N
C
N
223
N
C
N
224
N
O
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
H
N
233
N
H
N
234
N
H
N
235
N
H
N
236
N
H
N
237
N
H
N
238
N
N
N
239
S
C
N
240
N
C
N
241
N
O
N
242
N
C
N
243
N
C
N
244
N
C
N
245
N
C
N
246
N
N
N
247
N
O
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
H
N
258
N
H
N
259
N
H
N
260
N
H
N
261
N
H
N
262
N
H
N
263
N
N
N
264
S
C
N
265
N
C
N
266
N
O
N
267
N
C
N
268
N
C
N
269
N
S
N
270
N
C
N
271
N
O
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
MG
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
P
N
308
N
O
N
309
N
O
N
310
N
O
N
311
N
O
N
312
N
N
N
313
S
C
N
314
N
C
N
315
N
O
N
316
N
C
N
317
N
C
N
318
N
C
N
319
N
O
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
H
N
327
N
H
N
328
N
H
N
329
N
N
N
330
S
C
N
331
N
C
N
332
N
O
N
333
N
C
N
334
N
O
N
335
N
O
N
336
N
H
N
337
N
H
N
338
N
H
N
339
N
H
N
340
N
H
N
341
N
H
N
342
N
H
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
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
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
Y
193
N
doub
Y
194
N
sing
Y
195
N
sing
N
196
N
sing
Y
197
N
sing
N
198
N
sing
N
199
N
sing
Y
200
N
doub
N
201
N
doub
N
202
N
sing
N
203
N
sing
N
204
N
doub
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
doub
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
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
doub
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
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
doub
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
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
doub
N
279
N
sing
N
280
N
sing
N
281
N
sing
N
282
N
sing
Y
283
N
doub
Y
284
N
sing
Y
285
N
sing
N
286
N
sing
Y
287
N
doub
N
288
N
sing
Y
289
N
doub
N
290
N
sing
Y
291
N
sing
N
292
N
sing
N
293
N
sing
N
294
N
sing
N
295
N
doub
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
doub
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
sing
N
320
N
sing
N
321
N
sing
N
322
N
doub
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
sing
N
332
N
sing
N
333
N
sing
N
334
N
sing
N
335
N
doub
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
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
doub
N
352
N
sing
N
353
N
sing
N
354
N
sing
N
355
N
sing
Y
356
N
doub
Y
357
N
sing
Y
358
N
sing
N
359
N
sing
Y
360
N
doub
Y
361
N
sing
Y
362
N
sing
N
363
N
sing
Y
364
N
sing
Y
365
N
doub
N
366
N
sing
Y
367
N
doub
N
368
N
sing
Y
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
doub
N
380
N
sing
N
381
N
sing
N
382
N
sing
N
383
N
sing
Y
384
N
doub
Y
385
N
sing
Y
386
N
sing
N
387
N
sing
Y
388
N
doub
N
389
N
sing
Y
390
N
doub
N
391
N
sing
Y
392
N
sing
N
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
doub
N
404
N
sing
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
US
Biochemistry
BICHAW
0033
0006-2960
40
853
860
10.1021/bi002499f
11170405
Transition state structure of purine nucleoside phosphorylase and principles of atomic motion in enzymatic catalysis.
2001
US
Biochemistry
BICHAW
0033
0006-2960
37
7135
7146
10.1021/bi9723919
9585525
Calf spleen purine nucleoside phosphorylase complexed with substrates and substrate analogues.
1998
10.2210/pdb1b8o/pdb
pdb_00001b8o
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
140
1
IMAGE PLATE
1998-08-15
MARRESEARCH
SINGLE WAVELENGTH
M
x-ray
1
1.04019
1.0
X9B
NSLS
1.04019
SYNCHROTRON
NSLS BEAMLINE X9B
COMPLEXED WITH TRANSITION-STATE ANALOGUE 1,4-DIDEOXY-1,4-IMINO-1-(S)-(9-DEAZAHYPOXANTHIN-9-YL)-D-RIBITOL
31687.113
PURINE NUCLEOSIDE PHOSPHORYLASE
2.4.2.1
1
nat
polymer
24.305
MAGNESIUM ION
1
syn
non-polymer
94.971
PHOSPHATE ION
1
syn
non-polymer
266.253
1,4-DIDEOXY-4-AZA-1-(S)-(9-DEAZAHYPOXANTHIN-9-YL)-D-RIBITOL
1
syn
non-polymer
18.015
water
197
nat
water
E.C.2.4.2.1
no
no
MQNGYTYEDYQDTAKWLLSHTEQRPQVAVICGSGLGGLVNKLTQAQTFDYSEIPNFPESTVPGHAGRLVFGILNGRACVM
MQGRFHMYEGYPFWKVTFPVRVFRLLGVETLVVTNAAGGLNPNFEVGDIMLIRDHINLPGFSGENPLRGPNEERFGVRFP
AMSDAYDRDMRQKAHSTWKQMGEQRELQEGTYVMLGGPNFETVAECRLLRNLGADAVGMSTVPEVIVARHCGLRVFGFSL
ITNKVIMDYESQGKANHEEVLEAGKQAAQKLEQFVSLLMASIPV
MQNGYTYEDYQDTAKWLLSHTEQRPQVAVICGSGLGGLVNKLTQAQTFDYSEIPNFPESTVPGHAGRLVFGILNGRACVM
MQGRFHMYEGYPFWKVTFPVRVFRLLGVETLVVTNAAGGLNPNFEVGDIMLIRDHINLPGFSGENPLRGPNEERFGVRFP
AMSDAYDRDMRQKAHSTWKQMGEQRELQEGTYVMLGGPNFETVAECRLLRNLGADAVGMSTVPEVIVARHCGLRVFGFSL
ITNKVIMDYESQGKANHEEVLEAGKQAAQKLEQFVSLLMASIPV
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
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
cattle
Bos
sample
9913
SPLEEN
Bos taurus
1
2.22
43
8.0
PEG-400, TRIS, MGCL2, K3PO4, pH 8.0
PEG-400
1
TRIS
1
MGCL2
1
K3PO4
1
citation
citation_author
atom_site
chem_comp
database_2
pdbx_struct_conn_angle
struct_conn
struct_site
chem_comp_atom
chem_comp_bond
pdbx_initial_refinement_model
repository
Initial release
Version format compliance
Derived calculations
Version format compliance
Data collection
Database references
Atomic model
Database references
Derived calculations
Structure summary
Data collection
Refinement description
1
0
1999-02-08
1
1
2008-04-26
1
2
2011-07-13
1
3
2019-10-30
2
0
2022-10-05
2
1
2023-09-20
_citation.page_last
_citation.pdbx_database_id_PubMed
_citation.title
_citation_author.name
_atom_site.B_iso_or_equiv
_atom_site.Cartn_x
_atom_site.Cartn_y
_atom_site.Cartn_z
_chem_comp.pdbx_synonyms
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_pdbx_struct_conn_angle.ptnr1_auth_seq_id
_pdbx_struct_conn_angle.ptnr3_auth_seq_id
_pdbx_struct_conn_angle.value
_struct_conn.pdbx_dist_value
_struct_conn.ptnr1_auth_comp_id
_struct_conn.ptnr1_auth_seq_id
_struct_conn.ptnr1_label_asym_id
_struct_conn.ptnr1_label_atom_id
_struct_conn.ptnr1_label_comp_id
_struct_conn.ptnr2_auth_comp_id
_struct_conn.ptnr2_auth_seq_id
_struct_conn.ptnr2_label_asym_id
_struct_conn.ptnr2_label_atom_id
_struct_conn.ptnr2_label_comp_id
_struct_site.pdbx_auth_asym_id
_struct_site.pdbx_auth_comp_id
_struct_site.pdbx_auth_seq_id
BNL
Y
RCSB
1999-02-02
REL
MG
MAGNESIUM ION
PO4
PHOSPHATE ION
IMH
1,4-DIDEOXY-4-AZA-1-(S)-(9-DEAZAHYPOXANTHIN-9-YL)-D-RIBITOL
HOH
water
1PBN
PDB ENTRY 1PBN
PDB
experimental model
MG
598
2
MG
MG
598
A
PO4
599
3
PO4
PO4
599
A
IMH
600
4
IMH
IMH
600
A
HOH
301
5
HOH
HOH
301
A
HOH
302
5
HOH
HOH
302
A
HOH
303
5
HOH
HOH
303
A
HOH
304
5
HOH
HOH
304
A
HOH
305
5
HOH
HOH
305
A
HOH
306
5
HOH
HOH
306
A
HOH
307
5
HOH
HOH
307
A
HOH
308
5
HOH
HOH
308
A
HOH
309
5
HOH
HOH
309
A
HOH
310
5
HOH
HOH
310
A
HOH
311
5
HOH
HOH
311
A
HOH
312
5
HOH
HOH
312
A
HOH
313
5
HOH
HOH
313
A
HOH
314
5
HOH
HOH
314
A
HOH
315
5
HOH
HOH
315
A
HOH
316
5
HOH
HOH
316
A
HOH
317
5
HOH
HOH
317
A
HOH
318
5
HOH
HOH
318
A
HOH
319
5
HOH
HOH
319
A
HOH
320
5
HOH
HOH
320
A
HOH
321
5
HOH
HOH
321
A
HOH
322
5
HOH
HOH
322
A
HOH
323
5
HOH
HOH
323
A
HOH
324
5
HOH
HOH
324
A
HOH
325
5
HOH
HOH
325
A
HOH
326
5
HOH
HOH
326
A
HOH
327
5
HOH
HOH
327
A
HOH
328
5
HOH
HOH
328
A
HOH
329
5
HOH
HOH
329
A
HOH
330
5
HOH
HOH
330
A
HOH
331
5
HOH
HOH
331
A
HOH
332
5
HOH
HOH
332
A
HOH
333
5
HOH
HOH
333
A
HOH
334
5
HOH
HOH
334
A
HOH
335
5
HOH
HOH
335
A
HOH
336
5
HOH
HOH
336
A
HOH
337
5
HOH
HOH
337
A
HOH
338
5
HOH
HOH
338
A
HOH
339
5
HOH
HOH
339
A
HOH
340
5
HOH
HOH
340
A
HOH
341
5
HOH
HOH
341
A
HOH
342
5
HOH
HOH
342
A
HOH
343
5
HOH
HOH
343
A
HOH
344
5
HOH
HOH
344
A
HOH
345
5
HOH
HOH
345
A
HOH
346
5
HOH
HOH
346
A
HOH
347
5
HOH
HOH
347
A
HOH
348
5
HOH
HOH
348
A
HOH
349
5
HOH
HOH
349
A
HOH
350
5
HOH
HOH
350
A
HOH
351
5
HOH
HOH
351
A
HOH
352
5
HOH
HOH
352
A
HOH
353
5
HOH
HOH
353
A
HOH
354
5
HOH
HOH
354
A
HOH
355
5
HOH
HOH
355
A
HOH
356
5
HOH
HOH
356
A
HOH
357
5
HOH
HOH
357
A
HOH
358
5
HOH
HOH
358
A
HOH
359
5
HOH
HOH
359
A
HOH
360
5
HOH
HOH
360
A
HOH
361
5
HOH
HOH
361
A
HOH
362
5
HOH
HOH
362
A
HOH
363
5
HOH
HOH
363
A
HOH
364
5
HOH
HOH
364
A
HOH
365
5
HOH
HOH
365
A
HOH
366
5
HOH
HOH
366
A
HOH
367
5
HOH
HOH
367
A
HOH
368
5
HOH
HOH
368
A
HOH
369
5
HOH
HOH
369
A
HOH
370
5
HOH
HOH
370
A
HOH
371
5
HOH
HOH
371
A
HOH
372
5
HOH
HOH
372
A
HOH
373
5
HOH
HOH
373
A
HOH
374
5
HOH
HOH
374
A
HOH
375
5
HOH
HOH
375
A
HOH
376
5
HOH
HOH
376
A
HOH
377
5
HOH
HOH
377
A
HOH
378
5
HOH
HOH
378
A
HOH
379
5
HOH
HOH
379
A
HOH
380
5
HOH
HOH
380
A
HOH
381
5
HOH
HOH
381
A
HOH
382
5
HOH
HOH
382
A
HOH
383
5
HOH
HOH
383
A
HOH
384
5
HOH
HOH
384
A
HOH
385
5
HOH
HOH
385
A
HOH
386
5
HOH
HOH
386
A
HOH
387
5
HOH
HOH
387
A
HOH
388
5
HOH
HOH
388
A
HOH
389
5
HOH
HOH
389
A
HOH
390
5
HOH
HOH
390
A
HOH
391
5
HOH
HOH
391
A
HOH
392
5
HOH
HOH
392
A
HOH
393
5
HOH
HOH
393
A
HOH
394
5
HOH
HOH
394
A
HOH
395
5
HOH
HOH
395
A
HOH
396
5
HOH
HOH
396
A
HOH
397
5
HOH
HOH
397
A
HOH
398
5
HOH
HOH
398
A
HOH
399
5
HOH
HOH
399
A
HOH
400
5
HOH
HOH
400
A
HOH
401
5
HOH
HOH
401
A
HOH
402
5
HOH
HOH
402
A
HOH
403
5
HOH
HOH
403
A
HOH
404
5
HOH
HOH
404
A
HOH
405
5
HOH
HOH
405
A
HOH
406
5
HOH
HOH
406
A
HOH
407
5
HOH
HOH
407
A
HOH
408
5
HOH
HOH
408
A
HOH
409
5
HOH
HOH
409
A
HOH
410
5
HOH
HOH
410
A
HOH
411
5
HOH
HOH
411
A
HOH
412
5
HOH
HOH
412
A
HOH
413
5
HOH
HOH
413
A
HOH
414
5
HOH
HOH
414
A
HOH
415
5
HOH
HOH
415
A
HOH
416
5
HOH
HOH
416
A
HOH
417
5
HOH
HOH
417
A
HOH
418
5
HOH
HOH
418
A
HOH
419
5
HOH
HOH
419
A
HOH
420
5
HOH
HOH
420
A
HOH
421
5
HOH
HOH
421
A
HOH
422
5
HOH
HOH
422
A
HOH
423
5
HOH
HOH
423
A
HOH
424
5
HOH
HOH
424
A
HOH
425
5
HOH
HOH
425
A
HOH
426
5
HOH
HOH
426
A
HOH
427
5
HOH
HOH
427
A
HOH
428
5
HOH
HOH
428
A
HOH
429
5
HOH
HOH
429
A
HOH
430
5
HOH
HOH
430
A
HOH
431
5
HOH
HOH
431
A
HOH
432
5
HOH
HOH
432
A
HOH
433
5
HOH
HOH
433
A
HOH
434
5
HOH
HOH
434
A
HOH
435
5
HOH
HOH
435
A
HOH
436
5
HOH
HOH
436
A
HOH
437
5
HOH
HOH
437
A
HOH
438
5
HOH
HOH
438
A
HOH
439
5
HOH
HOH
439
A
HOH
440
5
HOH
HOH
440
A
HOH
441
5
HOH
HOH
441
A
HOH
442
5
HOH
HOH
442
A
HOH
443
5
HOH
HOH
443
A
HOH
444
5
HOH
HOH
444
A
HOH
445
5
HOH
HOH
445
A
HOH
446
5
HOH
HOH
446
A
HOH
447
5
HOH
HOH
447
A
HOH
448
5
HOH
HOH
448
A
HOH
449
5
HOH
HOH
449
A
HOH
450
5
HOH
HOH
450
A
HOH
451
5
HOH
HOH
451
A
HOH
452
5
HOH
HOH
452
A
HOH
453
5
HOH
HOH
453
A
HOH
454
5
HOH
HOH
454
A
HOH
455
5
HOH
HOH
455
A
HOH
456
5
HOH
HOH
456
A
HOH
457
5
HOH
HOH
457
A
HOH
458
5
HOH
HOH
458
A
HOH
459
5
HOH
HOH
459
A
HOH
460
5
HOH
HOH
460
A
HOH
461
5
HOH
HOH
461
A
HOH
462
5
HOH
HOH
462
A
HOH
463
5
HOH
HOH
463
A
HOH
464
5
HOH
HOH
464
A
HOH
465
5
HOH
HOH
465
A
HOH
466
5
HOH
HOH
466
A
HOH
467
5
HOH
HOH
467
A
HOH
469
5
HOH
HOH
469
A
HOH
470
5
HOH
HOH
470
A
HOH
471
5
HOH
HOH
471
A
HOH
472
5
HOH
HOH
472
A
HOH
473
5
HOH
HOH
473
A
HOH
474
5
HOH
HOH
474
A
HOH
475
5
HOH
HOH
475
A
HOH
476
5
HOH
HOH
476
A
HOH
477
5
HOH
HOH
477
A
HOH
478
5
HOH
HOH
478
A
HOH
479
5
HOH
HOH
479
A
HOH
480
5
HOH
HOH
480
A
HOH
481
5
HOH
HOH
481
A
HOH
482
5
HOH
HOH
482
A
HOH
483
5
HOH
HOH
483
A
HOH
484
5
HOH
HOH
484
A
HOH
485
5
HOH
HOH
485
A
HOH
486
5
HOH
HOH
486
A
HOH
488
5
HOH
HOH
488
A
HOH
490
5
HOH
HOH
490
A
HOH
491
5
HOH
HOH
491
A
HOH
492
5
HOH
HOH
492
A
HOH
493
5
HOH
HOH
493
A
HOH
494
5
HOH
HOH
494
A
HOH
495
5
HOH
HOH
495
A
HOH
496
5
HOH
HOH
496
A
HOH
497
5
HOH
HOH
497
A
HOH
498
5
HOH
HOH
498
A
HOH
499
5
HOH
HOH
499
A
HOH
500
5
HOH
HOH
500
A
n
1
1
A
n
2
2
A
ASN
3
n
3
ASN
3
A
GLY
4
n
4
GLY
4
A
TYR
5
n
5
TYR
5
A
THR
6
n
6
THR
6
A
TYR
7
n
7
TYR
7
A
GLU
8
n
8
GLU
8
A
ASP
9
n
9
ASP
9
A
TYR
10
n
10
TYR
10
A
GLN
11
n
11
GLN
11
A
ASP
12
n
12
ASP
12
A
THR
13
n
13
THR
13
A
ALA
14
n
14
ALA
14
A
LYS
15
n
15
LYS
15
A
TRP
16
n
16
TRP
16
A
LEU
17
n
17
LEU
17
A
LEU
18
n
18
LEU
18
A
SER
19
n
19
SER
19
A
HIS
20
n
20
HIS
20
A
THR
21
n
21
THR
21
A
GLU
22
n
22
GLU
22
A
GLN
23
n
23
GLN
23
A
ARG
24
n
24
ARG
24
A
PRO
25
n
25
PRO
25
A
GLN
26
n
26
GLN
26
A
VAL
27
n
27
VAL
27
A
ALA
28
n
28
ALA
28
A
VAL
29
n
29
VAL
29
A
ILE
30
n
30
ILE
30
A
CYS
31
n
31
CYS
31
A
GLY
32
n
32
GLY
32
A
SER
33
n
33
SER
33
A
GLY
34
n
34
GLY
34
A
LEU
35
n
35
LEU
35
A
GLY
36
n
36
GLY
36
A
GLY
37
n
37
GLY
37
A
LEU
38
n
38
LEU
38
A
VAL
39
n
39
VAL
39
A
ASN
40
n
40
ASN
40
A
LYS
41
n
41
LYS
41
A
LEU
42
n
42
LEU
42
A
THR
43
n
43
THR
43
A
GLN
44
n
44
GLN
44
A
ALA
45
n
45
ALA
45
A
GLN
46
n
46
GLN
46
A
THR
47
n
47
THR
47
A
PHE
48
n
48
PHE
48
A
ASP
49
n
49
ASP
49
A
TYR
50
n
50
TYR
50
A
SER
51
n
51
SER
51
A
GLU
52
n
52
GLU
52
A
ILE
53
n
53
ILE
53
A
PRO
54
n
54
PRO
54
A
ASN
55
n
55
ASN
55
A
PHE
56
n
56
PHE
56
A
PRO
57
n
57
PRO
57
A
GLU
58
n
58
GLU
58
A
SER
59
n
59
SER
59
A
THR
60
n
60
THR
60
A
VAL
61
n
61
VAL
61
A
PRO
62
n
62
PRO
62
A
GLY
63
n
63
GLY
63
A
HIS
64
n
64
HIS
64
A
ALA
65
n
65
ALA
65
A
GLY
66
n
66
GLY
66
A
ARG
67
n
67
ARG
67
A
LEU
68
n
68
LEU
68
A
VAL
69
n
69
VAL
69
A
PHE
70
n
70
PHE
70
A
GLY
71
n
71
GLY
71
A
ILE
72
n
72
ILE
72
A
LEU
73
n
73
LEU
73
A
ASN
74
n
74
ASN
74
A
GLY
75
n
75
GLY
75
A
ARG
76
n
76
ARG
76
A
ALA
77
n
77
ALA
77
A
CYS
78
n
78
CYS
78
A
VAL
79
n
79
VAL
79
A
MET
80
n
80
MET
80
A
MET
81
n
81
MET
81
A
GLN
82
n
82
GLN
82
A
GLY
83
n
83
GLY
83
A
ARG
84
n
84
ARG
84
A
PHE
85
n
85
PHE
85
A
HIS
86
n
86
HIS
86
A
MET
87
n
87
MET
87
A
TYR
88
n
88
TYR
88
A
GLU
89
n
89
GLU
89
A
GLY
90
n
90
GLY
90
A
TYR
91
n
91
TYR
91
A
PRO
92
n
92
PRO
92
A
PHE
93
n
93
PHE
93
A
TRP
94
n
94
TRP
94
A
LYS
95
n
95
LYS
95
A
VAL
96
n
96
VAL
96
A
THR
97
n
97
THR
97
A
PHE
98
n
98
PHE
98
A
PRO
99
n
99
PRO
99
A
VAL
100
n
100
VAL
100
A
ARG
101
n
101
ARG
101
A
VAL
102
n
102
VAL
102
A
PHE
103
n
103
PHE
103
A
ARG
104
n
104
ARG
104
A
LEU
105
n
105
LEU
105
A
LEU
106
n
106
LEU
106
A
GLY
107
n
107
GLY
107
A
VAL
108
n
108
VAL
108
A
GLU
109
n
109
GLU
109
A
THR
110
n
110
THR
110
A
LEU
111
n
111
LEU
111
A
VAL
112
n
112
VAL
112
A
VAL
113
n
113
VAL
113
A
THR
114
n
114
THR
114
A
ASN
115
n
115
ASN
115
A
ALA
116
n
116
ALA
116
A
ALA
117
n
117
ALA
117
A
GLY
118
n
118
GLY
118
A
GLY
119
n
119
GLY
119
A
LEU
120
n
120
LEU
120
A
ASN
121
n
121
ASN
121
A
PRO
122
n
122
PRO
122
A
ASN
123
n
123
ASN
123
A
PHE
124
n
124
PHE
124
A
GLU
125
n
125
GLU
125
A
VAL
126
n
126
VAL
126
A
GLY
127
n
127
GLY
127
A
ASP
128
n
128
ASP
128
A
ILE
129
n
129
ILE
129
A
MET
130
n
130
MET
130
A
LEU
131
n
131
LEU
131
A
ILE
132
n
132
ILE
132
A
ARG
133
n
133
ARG
133
A
ASP
134
n
134
ASP
134
A
HIS
135
n
135
HIS
135
A
ILE
136
n
136
ILE
136
A
ASN
137
n
137
ASN
137
A
LEU
138
n
138
LEU
138
A
PRO
139
n
139
PRO
139
A
GLY
140
n
140
GLY
140
A
PHE
141
n
141
PHE
141
A
SER
142
n
142
SER
142
A
GLY
143
n
143
GLY
143
A
GLU
144
n
144
GLU
144
A
ASN
145
n
145
ASN
145
A
PRO
146
n
146
PRO
146
A
LEU
147
n
147
LEU
147
A
ARG
148
n
148
ARG
148
A
GLY
149
n
149
GLY
149
A
PRO
150
n
150
PRO
150
A
ASN
151
n
151
ASN
151
A
GLU
152
n
152
GLU
152
A
GLU
153
n
153
GLU
153
A
ARG
154
n
154
ARG
154
A
PHE
155
n
155
PHE
155
A
GLY
156
n
156
GLY
156
A
VAL
157
n
157
VAL
157
A
ARG
158
n
158
ARG
158
A
PHE
159
n
159
PHE
159
A
PRO
160
n
160
PRO
160
A
ALA
161
n
161
ALA
161
A
MET
162
n
162
MET
162
A
SER
163
n
163
SER
163
A
ASP
164
n
164
ASP
164
A
ALA
165
n
165
ALA
165
A
TYR
166
n
166
TYR
166
A
ASP
167
n
167
ASP
167
A
ARG
168
n
168
ARG
168
A
ASP
169
n
169
ASP
169
A
MET
170
n
170
MET
170
A
ARG
171
n
171
ARG
171
A
GLN
172
n
172
GLN
172
A
LYS
173
n
173
LYS
173
A
ALA
174
n
174
ALA
174
A
HIS
175
n
175
HIS
175
A
SER
176
n
176
SER
176
A
THR
177
n
177
THR
177
A
TRP
178
n
178
TRP
178
A
LYS
179
n
179
LYS
179
A
GLN
180
n
180
GLN
180
A
MET
181
n
181
MET
181
A
GLY
182
n
182
GLY
182
A
GLU
183
n
183
GLU
183
A
GLN
184
n
184
GLN
184
A
ARG
185
n
185
ARG
185
A
GLU
186
n
186
GLU
186
A
LEU
187
n
187
LEU
187
A
GLN
188
n
188
GLN
188
A
GLU
189
n
189
GLU
189
A
GLY
190
n
190
GLY
190
A
THR
191
n
191
THR
191
A
TYR
192
n
192
TYR
192
A
VAL
193
n
193
VAL
193
A
MET
194
n
194
MET
194
A
LEU
195
n
195
LEU
195
A
GLY
196
n
196
GLY
196
A
GLY
197
n
197
GLY
197
A
PRO
198
n
198
PRO
198
A
ASN
199
n
199
ASN
199
A
PHE
200
n
200
PHE
200
A
GLU
201
n
201
GLU
201
A
THR
202
n
202
THR
202
A
VAL
203
n
203
VAL
203
A
ALA
204
n
204
ALA
204
A
GLU
205
n
205
GLU
205
A
CYS
206
n
206
CYS
206
A
ARG
207
n
207
ARG
207
A
LEU
208
n
208
LEU
208
A
LEU
209
n
209
LEU
209
A
ARG
210
n
210
ARG
210
A
ASN
211
n
211
ASN
211
A
LEU
212
n
212
LEU
212
A
GLY
213
n
213
GLY
213
A
ALA
214
n
214
ALA
214
A
ASP
215
n
215
ASP
215
A
ALA
216
n
216
ALA
216
A
VAL
217
n
217
VAL
217
A
GLY
218
n
218
GLY
218
A
MET
219
n
219
MET
219
A
SER
220
n
220
SER
220
A
THR
221
n
221
THR
221
A
VAL
222
n
222
VAL
222
A
PRO
223
n
223
PRO
223
A
GLU
224
n
224
GLU
224
A
VAL
225
n
225
VAL
225
A
ILE
226
n
226
ILE
226
A
VAL
227
n
227
VAL
227
A
ALA
228
n
228
ALA
228
A
ARG
229
n
229
ARG
229
A
HIS
230
n
230
HIS
230
A
CYS
231
n
231
CYS
231
A
GLY
232
n
232
GLY
232
A
LEU
233
n
233
LEU
233
A
ARG
234
n
234
ARG
234
A
VAL
235
n
235
VAL
235
A
PHE
236
n
236
PHE
236
A
GLY
237
n
237
GLY
237
A
PHE
238
n
238
PHE
238
A
SER
239
n
239
SER
239
A
LEU
240
n
240
LEU
240
A
ILE
241
n
241
ILE
241
A
THR
242
n
242
THR
242
A
ASN
243
n
243
ASN
243
A
LYS
244
n
244
LYS
244
A
VAL
245
n
245
VAL
245
A
ILE
246
n
246
ILE
246
A
MET
247
n
247
MET
247
A
ASP
248
n
248
ASP
248
A
TYR
249
n
249
TYR
249
A
GLU
250
n
250
GLU
250
A
SER
251
n
251
SER
251
A
GLN
252
n
252
GLN
252
A
GLY
253
n
253
GLY
253
A
LYS
254
n
254
LYS
254
A
ALA
255
n
255
ALA
255
A
ASN
256
n
256
ASN
256
A
HIS
257
n
257
HIS
257
A
GLU
258
n
258
GLU
258
A
GLU
259
n
259
GLU
259
A
VAL
260
n
260
VAL
260
A
LEU
261
n
261
LEU
261
A
GLU
262
n
262
GLU
262
A
ALA
263
n
263
ALA
263
A
GLY
264
n
264
GLY
264
A
LYS
265
n
265
LYS
265
A
GLN
266
n
266
GLN
266
A
ALA
267
n
267
ALA
267
A
ALA
268
n
268
ALA
268
A
GLN
269
n
269
GLN
269
A
LYS
270
n
270
LYS
270
A
LEU
271
n
271
LEU
271
A
GLU
272
n
272
GLU
272
A
GLN
273
n
273
GLN
273
A
PHE
274
n
274
PHE
274
A
VAL
275
n
275
VAL
275
A
SER
276
n
276
SER
276
A
LEU
277
n
277
LEU
277
A
LEU
278
n
278
LEU
278
A
MET
279
n
279
MET
279
A
ALA
280
n
280
ALA
280
A
SER
281
n
281
SER
281
A
ILE
282
n
282
ILE
282
A
n
283
283
A
n
284
284
A
author_defined_assembly
1
monomeric
software_defined_assembly
PISA,PQS
3
trimeric
9680
-73
28320
A
HOH
319
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
A
HOH
326
E
O
HOH
1_555
171.6
A
HOH
319
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
A
HOH
328
E
O
HOH
1_555
96.9
A
HOH
326
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
A
HOH
328
E
O
HOH
1_555
90.1
A
HOH
319
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
A
HOH
329
E
O
HOH
1_555
88.9
A
HOH
326
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
A
HOH
329
E
O
HOH
1_555
84.7
A
HOH
328
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
A
HOH
329
E
O
HOH
1_555
170.9
A
HOH
319
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
A
HOH
342
E
O
HOH
1_555
84.4
A
HOH
326
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
A
HOH
342
E
O
HOH
1_555
89.8
A
HOH
328
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
A
HOH
342
E
O
HOH
1_555
101.5
A
HOH
329
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
A
HOH
342
E
O
HOH
1_555
86.0
A
HOH
319
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
A
HOH
348
E
O
HOH
1_555
95.8
A
HOH
326
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
A
HOH
348
E
O
HOH
1_555
89.2
A
HOH
328
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
A
HOH
348
E
O
HOH
1_555
85.9
A
HOH
329
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
A
HOH
348
E
O
HOH
1_555
86.5
A
HOH
342
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
A
HOH
348
E
O
HOH
1_555
172.5
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
0.0000000000
0.0000000000
-1.0000000000
1.0000000000
0.0000000000
0.0000000000
0.0000000000
-1.0000000000
0.0000000000
8_656
-z+1,x+1/2,-y+3/2
crystal symmetry operation
92.6830000000
46.3415000000
139.0245000000
0.0000000000
1.0000000000
0.0000000000
0.0000000000
0.0000000000
-1.0000000000
-1.0000000000
0.0000000000
0.0000000000
11_466
y-1/2,-z+3/2,-x+1
crystal symmetry operation
-46.3415000000
139.0245000000
92.6830000000
A
O
ALA
216
A
O
ALA
216
A
N
VAL
193
A
N
VAL
193
A
O
GLN
188
A
O
GLN
188
A
N
LEU
131
A
N
LEU
131
A
O
MET
130
A
O
MET
130
A
N
SER
239
A
N
SER
239
A
O
ARG
234
A
O
ARG
234
A
N
LEU
111
A
N
LEU
111
A
O
THR
110
A
O
THR
110
A
N
ALA
28
A
N
ALA
28
A
O
VAL
27
A
O
VAL
27
A
N
VAL
79
A
N
VAL
79
A
O
ARG
76
A
O
ARG
76
A
N
LEU
73
A
N
LEU
73
A
O
LEU
68
A
O
LEU
68
A
N
PHE
48
A
N
PHE
48
1
A
MET
1
A
MET
1
1
Y
1
A
GLN
2
A
GLN
2
1
Y
1
A
PRO
283
A
PRO
283
1
Y
1
A
VAL
284
A
VAL
284
1
Y
1
A
A
O
O
HOH
HOH
411
476
2.16
1
A
ASN
55
73.69
-5.97
1
A
PHE
159
-118.50
77.98
1
A
ASP
167
-35.67
117.22
1
A
THR
221
68.11
-58.12
PROTEIN_REP.PARAM
TOPHCSDX.PRO
PARAM11.DNA
TOPH11.DNA
17.4
0.2320000
0.1840000
1.5
8.0
39199
5.0
92.6
RANDOM
1
THROUGHOUT
2
MOLECULAR REPLACEMENT
PDB ENTRY 1PBN
1.5
8.0
197
2414
25
0
2192
0.007
1.3
25.4
0.75
0.2270000
0.2260000
1.57
4146
8
5.0
83.55
1.5
20.0
1B8O
42526
0.0600000
1
40
6
99.6
0.4100000
1.50
1.55
5.5
1
model building
X-PLOR
refinement
X-PLOR
3.851
data reduction
DENZO
data scaling
SCALEPACK
phasing
X-PLOR
PURINE NUCLEOSIDE PHOSPHORYLASE
1
N
N
2
N
N
3
N
N
4
N
N
5
N
N
A
TYR
7
A
TYR
7
HELX_P
A
HIS
20
A
HIS
20
1
1
14
A
GLY
36
A
GLY
36
HELX_P
A
VAL
39
A
VAL
39
5
2
4
A
TYR
50
A
TYR
50
HELX_P
A
GLU
52
A
GLU
52
5
3
3
A
MET
87
A
MET
87
HELX_P
A
GLU
89
A
GLU
89
5
4
3
A
PHE
93
A
PHE
93
HELX_P
A
VAL
96
A
VAL
96
1
5
4
A
PHE
98
A
PHE
98
HELX_P
A
LEU
106
A
LEU
106
1
6
9
A
LEU
138
A
LEU
138
HELX_P
A
SER
142
A
SER
142
1
7
5
A
ARG
168
A
ARG
168
HELX_P
A
MET
181
A
MET
181
1
8
14
A
VAL
203
A
VAL
203
HELX_P
A
ASN
211
A
ASN
211
1
9
9
A
VAL
222
A
VAL
222
HELX_P
A
HIS
230
A
HIS
230
1
10
9
A
HIS
257
A
HIS
257
HELX_P
A
ALA
280
A
ALA
280
1
11
24
metalc
2.275
A
HOH
319
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
metalc
2.234
A
HOH
326
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
metalc
2.251
A
HOH
328
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
metalc
2.287
A
HOH
329
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
metalc
2.289
A
HOH
342
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
metalc
2.350
A
HOH
348
E
O
HOH
1_555
A
MG
598
B
MG
MG
1_555
TRANSFERASE
PENTOSYLTRANSFERASE, PURINE NUCLEOSIDE PHOSPHORYLASE, TRANSFERASE
A
GLY
197
A
GLY
197
1
A
PRO
198
A
PRO
198
0.60
PNPH_BOVIN
UNP
1
P55859
1
284
1B8O
1
284
P55859
A
1
1
284
9
parallel
parallel
anti-parallel
parallel
parallel
parallel
anti-parallel
anti-parallel
A
ALA
216
A
ALA
216
A
GLY
218
A
GLY
218
A
GLN
188
A
GLN
188
A
MET
194
A
MET
194
A
ILE
129
A
ILE
129
A
ASN
137
A
ASN
137
A
ARG
234
A
ARG
234
A
LYS
244
A
LYS
244
A
THR
110
A
THR
110
A
GLY
119
A
GLY
119
A
VAL
27
A
VAL
27
A
CYS
31
A
CYS
31
A
ARG
76
A
ARG
76
A
GLN
82
A
GLN
82
A
ARG
67
A
ARG
67
A
LEU
73
A
LEU
73
A
GLN
46
A
GLN
46
A
ASP
49
A
ASP
49
BINDING SITE FOR RESIDUE MG A 598
A
MG
598
Software
6
BINDING SITE FOR RESIDUE PO4 A 599
A
PO4
599
Software
10
BINDING SITE FOR RESIDUE IMH A 600
A
IMH
600
Software
16
A
HOH
319
E
HOH
6
1_555
A
HOH
326
E
HOH
6
1_555
A
HOH
328
E
HOH
6
1_555
A
HOH
329
E
HOH
6
1_555
A
HOH
342
E
HOH
6
1_555
A
HOH
348
E
HOH
6
1_555
A
GLY
32
A
GLY
32
10
1_555
A
SER
33
A
SER
33
10
1_555
A
HIS
64
A
HIS
64
10
1_555
A
ARG
84
A
ARG
84
10
1_555
A
HIS
86
A
HIS
86
10
1_555
A
ASN
115
A
ASN
115
10
1_555
A
ALA
116
A
ALA
116
10
1_555
A
SER
220
A
SER
220
10
1_555
A
HOH
306
E
HOH
10
1_555
A
IMH
600
D
IMH
10
1_555
A
HIS
86
A
HIS
86
16
1_555
A
TYR
88
A
TYR
88
16
1_555
A
ALA
116
A
ALA
116
16
1_555
A
ALA
117
A
ALA
117
16
1_555
A
GLY
118
A
GLY
118
16
1_555
A
PHE
200
A
PHE
200
16
1_555
A
GLU
201
A
GLU
201
16
1_555
A
GLY
218
A
GLY
218
16
1_555
A
MET
219
A
MET
219
16
1_555
A
THR
242
A
THR
242
16
1_555
A
ASN
243
A
ASN
243
16
1_555
A
VAL
245
A
VAL
245
16
1_555
A
HIS
257
A
HIS
257
16
1_555
A
VAL
260
A
VAL
260
16
1_555
A
HOH
320
E
HOH
16
1_555
A
PO4
599
C
PO4
16
1_555
198
cubic
P 21 3