0.016113
0.000000
0.000000
0.000000
0.016113
0.000000
0.000000
0.000000
0.005750
0.00000
0.00000
0.00000
Safo, M.K.
Meadows, J.
Ko, T.-P.
Nakagawa, A.
Zapol, W.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
8
90.00
90.00
90.00
62.0636
62.0636
173.8816
C10 H9 N3 O2 S
235.262
5-[(2S)-2,3-dihydro-1,4-benzodioxin-2-yl]-2,4-dihydro-3H-1,2,4-triazole-3-thione
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
C O
28.010
CARBON MONOXIDE
non-polymer
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
C34 H32 Fe N4 O4
616.487
PROTOPORPHYRIN IX CONTAINING FE
HEME
non-polymer
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
LEUCINE
L-peptide linking
C6 H15 N2 O2 1
147.195
y
LYSINE
L-peptide linking
C7 H8
92.138
TOLUENE
non-polymer
C5 H11 N O2 S
149.211
y
METHIONINE
L-peptide linking
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
C
N
2
N
N
N
3
N
S
N
4
N
C
N
5
N
N
N
6
N
N
N
7
S
C
N
8
N
C
N
9
N
O
Y
10
N
C
Y
11
N
C
N
12
N
O
Y
13
N
C
Y
14
N
C
Y
15
N
C
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
N
N
27
S
C
N
28
N
C
N
29
N
O
N
30
N
C
N
31
N
O
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
N
N
40
S
C
N
41
N
C
N
42
N
O
N
43
N
C
N
44
N
C
N
45
N
C
N
46
N
N
N
47
N
C
N
48
N
N
N
49
N
N
N
50
N
O
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
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
N
N
67
S
C
N
68
N
C
N
69
N
O
N
70
N
C
N
71
N
C
N
72
N
O
N
73
N
N
N
74
N
O
N
75
N
H
N
76
N
H
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
N
N
84
S
C
N
85
N
C
N
86
N
O
N
87
N
C
N
88
N
C
N
89
N
O
N
90
N
O
N
91
N
O
N
92
N
H
N
93
N
H
N
94
N
H
N
95
N
H
N
96
N
H
N
97
N
H
N
98
N
H
N
99
N
C
N
100
N
O
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
C
N
165
N
C
N
166
N
C
N
167
N
C
Y
168
N
C
Y
169
N
C
Y
170
N
C
Y
171
N
C
N
172
N
C
N
173
N
C
N
174
N
C
N
175
N
C
N
176
N
O
N
177
N
O
N
178
N
C
N
179
N
C
N
180
N
C
N
181
N
C
N
182
N
C
N
183
N
C
N
184
N
C
Y
185
N
C
Y
186
N
C
Y
187
N
C
Y
188
N
C
N
189
N
C
N
190
N
C
N
191
N
C
N
192
N
C
N
193
N
C
N
194
N
C
N
195
N
C
N
196
N
C
N
197
N
C
N
198
N
C
N
199
N
C
N
200
N
O
N
201
N
O
Y
202
N
N
N
203
N
N
Y
204
N
N
N
205
N
N
N
206
N
FE
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
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
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
H
N
239
N
N
N
240
S
C
N
241
N
C
N
242
N
O
N
243
N
C
Y
244
N
C
Y
245
N
N
Y
246
N
C
Y
247
N
C
Y
248
N
N
N
249
N
O
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
O
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
C
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
H
N
284
N
H
N
285
N
N
N
286
S
C
N
287
N
C
N
288
N
O
N
289
N
C
N
290
N
C
N
291
N
C
N
292
N
C
N
293
N
N
N
294
N
O
N
295
N
H
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
H
N
308
N
H
N
309
N
H
N
310
N
C
Y
311
N
C
Y
312
N
C
Y
313
N
C
Y
314
N
C
Y
315
N
C
Y
316
N
C
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
N
N
326
S
C
N
327
N
C
N
328
N
O
N
329
N
C
N
330
N
C
N
331
N
S
N
332
N
C
N
333
N
O
N
334
N
H
N
335
N
H
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
H
N
344
N
H
N
345
N
N
N
346
S
C
N
347
N
C
N
348
N
O
N
349
N
C
Y
350
N
C
Y
351
N
C
Y
352
N
C
Y
353
N
C
Y
354
N
C
Y
355
N
C
N
356
N
O
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
H
N
367
N
H
N
368
N
P
N
369
N
O
N
370
N
O
N
371
N
O
N
372
N
O
N
373
N
N
N
374
S
C
N
375
N
C
N
376
N
O
N
377
N
C
N
378
N
C
N
379
N
C
N
380
N
O
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
O
N
396
N
O
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
R
C
N
409
N
O
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
N
N
422
S
C
N
423
N
C
N
424
N
O
N
425
N
C
Y
426
N
C
Y
427
N
C
Y
428
N
C
Y
429
N
N
Y
430
N
C
Y
431
N
C
Y
432
N
C
Y
433
N
C
Y
434
N
C
N
435
N
O
N
436
N
H
N
437
N
H
N
438
N
H
N
439
N
H
N
440
N
H
N
441
N
H
N
442
N
H
N
443
N
H
N
444
N
H
N
445
N
H
N
446
N
H
N
447
N
H
N
448
N
N
N
449
S
C
N
450
N
C
N
451
N
O
N
452
N
C
Y
453
N
C
Y
454
N
C
Y
455
N
C
Y
456
N
C
Y
457
N
C
Y
458
N
C
N
459
N
O
N
460
N
O
N
461
N
H
N
462
N
H
N
463
N
H
N
464
N
H
N
465
N
H
N
466
N
H
N
467
N
H
N
468
N
H
N
469
N
H
N
470
N
H
N
471
N
H
N
472
N
N
N
473
S
C
N
474
N
C
N
475
N
O
N
476
N
C
N
477
N
C
N
478
N
C
N
479
N
O
N
480
N
H
N
481
N
H
N
482
N
H
N
483
N
H
N
484
N
H
N
485
N
H
N
486
N
H
N
487
N
H
N
488
N
H
N
489
N
H
N
490
N
H
N
1
N
sing
N
2
N
sing
Y
3
N
doub
Y
4
N
sing
Y
5
N
sing
Y
6
N
doub
N
7
N
sing
N
8
N
sing
Y
9
N
doub
N
10
N
sing
Y
11
N
sing
N
12
N
sing
N
13
N
sing
N
14
N
doub
N
15
N
sing
N
16
N
sing
N
17
N
doub
N
18
N
sing
N
19
N
sing
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
sing
N
34
N
doub
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
sing
N
46
N
doub
N
47
N
sing
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
doub
N
61
N
sing
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
doub
N
73
N
sing
N
74
N
sing
N
75
N
sing
N
76
N
sing
N
77
N
doub
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
doub
N
89
N
sing
N
90
N
sing
N
91
N
sing
N
92
N
sing
N
93
N
doub
N
94
N
sing
N
95
N
sing
N
96
N
sing
N
97
N
trip
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
doub
N
159
N
sing
N
160
N
sing
N
161
N
doub
N
162
N
sing
N
163
N
sing
N
164
N
doub
N
165
N
sing
N
166
N
doub
N
167
N
sing
N
168
N
sing
Y
169
N
doub
Y
170
N
sing
Y
171
N
sing
N
172
N
sing
Y
173
N
doub
N
174
N
sing
Y
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
doub
N
186
N
sing
N
187
N
sing
N
188
N
sing
N
189
N
doub
N
190
N
sing
N
191
N
sing
N
192
N
sing
N
193
N
doub
N
194
N
sing
N
195
N
sing
N
196
N
sing
N
197
N
doub
N
198
N
sing
N
199
N
sing
N
200
N
sing
Y
201
N
sing
Y
202
N
sing
Y
203
N
doub
N
204
N
sing
Y
205
N
sing
N
206
N
sing
Y
207
N
sing
N
208
N
sing
N
209
N
sing
N
210
N
sing
N
211
N
doub
N
212
N
sing
N
213
N
sing
N
214
N
sing
N
215
N
sing
N
216
N
doub
N
217
N
doub
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
doub
N
232
N
sing
N
233
N
sing
N
234
N
sing
N
235
N
sing
N
236
N
sing
N
237
N
sing
N
238
N
sing
N
239
N
sing
N
240
N
sing
N
241
N
sing
N
242
N
sing
N
243
N
sing
N
244
N
sing
N
245
N
doub
N
246
N
sing
N
247
N
sing
N
248
N
sing
N
249
N
sing
Y
250
N
sing
Y
251
N
doub
Y
252
N
doub
N
253
N
sing
Y
254
N
sing
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
sing
N
267
N
sing
N
268
N
doub
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
sing
N
284
N
sing
N
285
N
sing
N
286
N
sing
N
287
N
sing
N
288
N
sing
N
289
N
doub
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
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
Y
311
N
doub
Y
312
N
sing
Y
313
N
sing
N
314
N
sing
Y
315
N
doub
N
316
N
sing
Y
317
N
sing
N
318
N
sing
Y
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
sing
N
345
N
sing
N
346
N
sing
N
347
N
doub
N
348
N
sing
N
349
N
sing
N
350
N
sing
N
351
N
sing
Y
352
N
doub
Y
353
N
sing
Y
354
N
sing
N
355
N
sing
Y
356
N
doub
N
357
N
sing
Y
358
N
doub
N
359
N
sing
Y
360
N
sing
N
361
N
sing
N
362
N
sing
N
363
N
sing
N
364
N
doub
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
sing
N
373
N
sing
N
374
N
doub
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
sing
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
doub
N
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
sing
N
404
N
doub
N
405
N
sing
N
406
N
sing
N
407
N
sing
N
408
N
sing
N
409
N
sing
N
410
N
sing
N
411
N
sing
N
412
N
sing
N
413
N
sing
N
414
N
sing
N
415
N
sing
N
416
N
sing
N
417
N
sing
N
418
N
sing
N
419
N
sing
N
420
N
doub
N
421
N
sing
N
422
N
sing
N
423
N
sing
N
424
N
sing
Y
425
N
doub
Y
426
N
sing
Y
427
N
sing
N
428
N
sing
Y
429
N
doub
Y
430
N
sing
Y
431
N
sing
N
432
N
sing
Y
433
N
sing
Y
434
N
doub
N
435
N
sing
Y
436
N
doub
N
437
N
sing
Y
438
N
sing
N
439
N
sing
N
440
N
sing
N
441
N
sing
N
442
N
sing
N
443
N
sing
N
444
N
sing
N
445
N
sing
N
446
N
sing
N
447
N
sing
N
448
N
doub
N
449
N
sing
N
450
N
sing
N
451
N
sing
N
452
N
sing
Y
453
N
doub
Y
454
N
sing
Y
455
N
sing
N
456
N
sing
Y
457
N
doub
N
458
N
sing
Y
459
N
doub
N
460
N
sing
Y
461
N
sing
N
462
N
sing
N
463
N
sing
N
464
N
sing
N
465
N
sing
N
466
N
sing
N
467
N
sing
N
468
N
sing
N
469
N
sing
N
470
N
sing
N
471
N
sing
N
472
N
doub
N
473
N
sing
N
474
N
sing
N
475
N
sing
N
476
N
sing
N
477
N
sing
N
478
N
sing
N
479
N
sing
N
480
N
sing
N
481
N
sing
N
482
N
sing
N
483
N
sing
US
Acs Chem.Biol.
1554-8929
9
2318
2325
10.1021/cb500230b
25061917
Identification of a Small Molecule that Increases Hemoglobin Oxygen Affinity and Reduces SS Erythrocyte Sickling.
2014
10.2210/pdb4ni0/pdb
pdb_00004ni0
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
100
1
IMAGE PLATE
2013-09-16
RIGAKU RAXIS IV++
graphite
SINGLE WAVELENGTH
M
x-ray
1
1.5418
1.0
1.5418
ROTATING ANODE
RIGAKU MICROMAX-007
15150.353
Hemoglobin subunit alpha
1
nat
polymer
15890.198
Hemoglobin subunit beta
1
nat
polymer
28.010
CARBON MONOXIDE
2
syn
non-polymer
616.487
PROTOPORPHYRIN IX CONTAINING FE
2
syn
non-polymer
235.262
5-[(2S)-2,3-dihydro-1,4-benzodioxin-2-yl]-2,4-dihydro-3H-1,2,4-triazole-3-thione
4
syn
non-polymer
92.138
TOLUENE
3
syn
non-polymer
94.971
PHOSPHATE ION
3
syn
non-polymer
18.015
water
158
nat
water
Alpha-globin, Hemoglobin alpha chain
Beta-globin, Hemoglobin beta chain, LVV-hemorphin-7, Spinorphin
no
no
VLSPADKTNVKAAWGKVGAHAGEYGAEALERMFLSFPTTKTYFPHFDLSHGSAQVKGHGKKVADALTNAVAHVDDMPNAL
SALSDLHAHKLRVDPVNFKLLSHCLLVTLAAHLPAEFTPAVHASLDKFLASVSTVLTSKYR
VLSPADKTNVKAAWGKVGAHAGEYGAEALERMFLSFPTTKTYFPHFDLSHGSAQVKGHGKKVADALTNAVAHVDDMPNAL
SALSDLHAHKLRVDPVNFKLLSHCLLVTLAAHLPAEFTPAVHASLDKFLASVSTVLTSKYR
A
polypeptide(L)
no
no
VHLTPEEKSAVTALWGKVNVDEVGGEALGRLLVVYPWTQRFFESFGDLSTPDAVMGNPKVKAHGKKVLGAFSDGLAHLDN
LKGTFATLSELHCDKLHVDPENFRLLGNVLVCVLAHHFGKEFTPPVQAAYQKVVAGVANALAHKYH
VHLTPEEKSAVTALWGKVNVDEVGGEALGRLLVVYPWTQRFFESFGDLSTPDAVMGNPKVKAHGKKVLGAFSDGLAHLDN
LKGTFATLSELHCDKLHVDPENFRLLGNVLVCVLAHHFGKEFTPPVQAAYQKVVAGVANALAHKYH
B
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
human
sample
9606
Homo sapiens
human
sample
9606
Homo sapiens
1
2.70
54.40
LIQUID DIFFUSION
6.8
20-30mg/mL protein, 3.0-3.4 M Sodium/potassium phosphate, pH 6.8, LIQUID DIFFUSION, temperature 298K
298
chem_comp_atom
chem_comp_bond
database_2
pdbx_initial_refinement_model
struct_conn
struct_conn_type
struct_site
repository
Initial release
Database references
Data collection
Database references
Derived calculations
Refinement description
1
0
2014-08-20
1
1
2014-10-29
1
2
2023-09-20
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_struct_conn.conn_type_id
_struct_conn.id
_struct_conn.pdbx_dist_value
_struct_conn.pdbx_leaving_atom_flag
_struct_conn.ptnr1_auth_asym_id
_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.ptnr1_label_seq_id
_struct_conn.ptnr2_auth_asym_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_conn_type.id
_struct_site.pdbx_auth_asym_id
_struct_site.pdbx_auth_comp_id
_struct_site.pdbx_auth_seq_id
Qauternary R CO-liganded hemoglobin structure in complex with a thiol containing compound
RCSB
Y
RCSB
2013-11-05
REL
REL
CMO
CARBON MONOXIDE
HEM
PROTOPORPHYRIN IX CONTAINING FE
2P3
5-[(2S)-2,3-dihydro-1,4-benzodioxin-2-yl]-2,4-dihydro-3H-1,2,4-triazole-3-thione
MBN
TOLUENE
PO4
PHOSPHATE ION
HOH
water
LIGAND 2P3 AND 2JX ARE RACEMIC MIXTURES OF COMPOUND 3-(2,3-DIHYDROBENZO[1,4]DIOXIN-2-YL)-3H-1,2,4-TRIAZOLE-5-THIOL. ONLY 2P3 ISOMERS WERE MODELED IN THIS STRUCTURE.
1YZI
PDB ENTRY 1YZI
PDB
experimental model
CMO
142
3
CMO
CMO
201
A
HEM
143
4
HEM
HEM
202
A
2JX
3
5
2P3
2P3
203
A
2JX
4
5
2P3
2P3
204
A
MBN
5
6
MBN
MBN
205
A
MBN
6
6
MBN
MBN
206
A
MBN
7
6
MBN
MBN
207
A
PO4
10
7
PO4
PO4
208
A
CMO
147
3
CMO
CMO
201
B
HEM
148
4
HEM
HEM
202
B
2JX
1
5
2P3
2P3
203
B
2JX
2
5
2P3
2P3
204
B
PO4
8
7
PO4
PO4
205
B
PO4
9
7
PO4
PO4
206
B
HOH
3
8
HOH
HOH
301
A
HOH
4
8
HOH
HOH
302
A
HOH
7
8
HOH
HOH
303
A
HOH
8
8
HOH
HOH
304
A
HOH
9
8
HOH
HOH
305
A
HOH
10
8
HOH
HOH
306
A
HOH
11
8
HOH
HOH
307
A
HOH
12
8
HOH
HOH
308
A
HOH
16
8
HOH
HOH
309
A
HOH
17
8
HOH
HOH
310
A
HOH
18
8
HOH
HOH
311
A
HOH
19
8
HOH
HOH
312
A
HOH
20
8
HOH
HOH
313
A
HOH
21
8
HOH
HOH
314
A
HOH
22
8
HOH
HOH
315
A
HOH
34
8
HOH
HOH
316
A
HOH
35
8
HOH
HOH
317
A
HOH
36
8
HOH
HOH
318
A
HOH
37
8
HOH
HOH
319
A
HOH
38
8
HOH
HOH
320
A
HOH
39
8
HOH
HOH
321
A
HOH
40
8
HOH
HOH
322
A
HOH
41
8
HOH
HOH
323
A
HOH
42
8
HOH
HOH
324
A
HOH
43
8
HOH
HOH
325
A
HOH
50
8
HOH
HOH
326
A
HOH
51
8
HOH
HOH
327
A
HOH
52
8
HOH
HOH
328
A
HOH
53
8
HOH
HOH
329
A
HOH
54
8
HOH
HOH
330
A
HOH
59
8
HOH
HOH
331
A
HOH
62
8
HOH
HOH
332
A
HOH
63
8
HOH
HOH
333
A
HOH
64
8
HOH
HOH
334
A
HOH
65
8
HOH
HOH
335
A
HOH
66
8
HOH
HOH
336
A
HOH
67
8
HOH
HOH
337
A
HOH
68
8
HOH
HOH
338
A
HOH
69
8
HOH
HOH
339
A
HOH
70
8
HOH
HOH
340
A
HOH
71
8
HOH
HOH
341
A
HOH
72
8
HOH
HOH
342
A
HOH
73
8
HOH
HOH
343
A
HOH
74
8
HOH
HOH
344
A
HOH
75
8
HOH
HOH
345
A
HOH
76
8
HOH
HOH
346
A
HOH
77
8
HOH
HOH
347
A
HOH
79
8
HOH
HOH
348
A
HOH
85
8
HOH
HOH
349
A
HOH
90
8
HOH
HOH
350
A
HOH
92
8
HOH
HOH
351
A
HOH
93
8
HOH
HOH
352
A
HOH
94
8
HOH
HOH
353
A
HOH
95
8
HOH
HOH
354
A
HOH
96
8
HOH
HOH
355
A
HOH
105
8
HOH
HOH
356
A
HOH
106
8
HOH
HOH
357
A
HOH
107
8
HOH
HOH
358
A
HOH
108
8
HOH
HOH
359
A
HOH
109
8
HOH
HOH
360
A
HOH
110
8
HOH
HOH
361
A
HOH
111
8
HOH
HOH
362
A
HOH
112
8
HOH
HOH
363
A
HOH
113
8
HOH
HOH
364
A
HOH
119
8
HOH
HOH
365
A
HOH
120
8
HOH
HOH
366
A
HOH
121
8
HOH
HOH
367
A
HOH
122
8
HOH
HOH
368
A
HOH
123
8
HOH
HOH
369
A
HOH
124
8
HOH
HOH
370
A
HOH
125
8
HOH
HOH
371
A
HOH
126
8
HOH
HOH
372
A
HOH
127
8
HOH
HOH
373
A
HOH
128
8
HOH
HOH
374
A
HOH
129
8
HOH
HOH
375
A
HOH
130
8
HOH
HOH
376
A
HOH
131
8
HOH
HOH
377
A
HOH
132
8
HOH
HOH
378
A
HOH
133
8
HOH
HOH
379
A
HOH
136
8
HOH
HOH
380
A
HOH
138
8
HOH
HOH
381
A
HOH
154
8
HOH
HOH
382
A
HOH
155
8
HOH
HOH
383
A
HOH
156
8
HOH
HOH
384
A
HOH
157
8
HOH
HOH
385
A
HOH
158
8
HOH
HOH
386
A
HOH
1
8
HOH
HOH
301
B
HOH
2
8
HOH
HOH
302
B
HOH
5
8
HOH
HOH
303
B
HOH
6
8
HOH
HOH
304
B
HOH
13
8
HOH
HOH
305
B
HOH
14
8
HOH
HOH
306
B
HOH
15
8
HOH
HOH
307
B
HOH
23
8
HOH
HOH
308
B
HOH
24
8
HOH
HOH
309
B
HOH
25
8
HOH
HOH
310
B
HOH
26
8
HOH
HOH
311
B
HOH
27
8
HOH
HOH
312
B
HOH
28
8
HOH
HOH
313
B
HOH
29
8
HOH
HOH
314
B
HOH
30
8
HOH
HOH
315
B
HOH
31
8
HOH
HOH
316
B
HOH
32
8
HOH
HOH
317
B
HOH
33
8
HOH
HOH
318
B
HOH
44
8
HOH
HOH
319
B
HOH
45
8
HOH
HOH
320
B
HOH
46
8
HOH
HOH
321
B
HOH
47
8
HOH
HOH
322
B
HOH
48
8
HOH
HOH
323
B
HOH
49
8
HOH
HOH
324
B
HOH
55
8
HOH
HOH
325
B
HOH
56
8
HOH
HOH
326
B
HOH
57
8
HOH
HOH
327
B
HOH
58
8
HOH
HOH
328
B
HOH
60
8
HOH
HOH
329
B
HOH
61
8
HOH
HOH
330
B
HOH
78
8
HOH
HOH
331
B
HOH
80
8
HOH
HOH
332
B
HOH
81
8
HOH
HOH
333
B
HOH
82
8
HOH
HOH
334
B
HOH
83
8
HOH
HOH
335
B
HOH
84
8
HOH
HOH
336
B
HOH
86
8
HOH
HOH
337
B
HOH
87
8
HOH
HOH
338
B
HOH
88
8
HOH
HOH
339
B
HOH
89
8
HOH
HOH
340
B
HOH
91
8
HOH
HOH
341
B
HOH
97
8
HOH
HOH
342
B
HOH
98
8
HOH
HOH
343
B
HOH
99
8
HOH
HOH
344
B
HOH
100
8
HOH
HOH
345
B
HOH
101
8
HOH
HOH
346
B
HOH
102
8
HOH
HOH
347
B
HOH
103
8
HOH
HOH
348
B
HOH
104
8
HOH
HOH
349
B
HOH
114
8
HOH
HOH
350
B
HOH
115
8
HOH
HOH
351
B
HOH
116
8
HOH
HOH
352
B
HOH
117
8
HOH
HOH
353
B
HOH
118
8
HOH
HOH
354
B
HOH
134
8
HOH
HOH
355
B
HOH
135
8
HOH
HOH
356
B
HOH
137
8
HOH
HOH
357
B
HOH
139
8
HOH
HOH
358
B
HOH
140
8
HOH
HOH
359
B
HOH
141
8
HOH
HOH
360
B
HOH
142
8
HOH
HOH
361
B
HOH
143
8
HOH
HOH
362
B
HOH
144
8
HOH
HOH
363
B
HOH
145
8
HOH
HOH
364
B
HOH
146
8
HOH
HOH
365
B
HOH
147
8
HOH
HOH
366
B
HOH
148
8
HOH
HOH
367
B
HOH
149
8
HOH
HOH
368
B
HOH
150
8
HOH
HOH
369
B
HOH
151
8
HOH
HOH
370
B
HOH
152
8
HOH
HOH
371
B
HOH
153
8
HOH
HOH
372
B
VAL
1
n
1
VAL
1
A
LEU
2
n
2
LEU
2
A
SER
3
n
3
SER
3
A
PRO
4
n
4
PRO
4
A
ALA
5
n
5
ALA
5
A
ASP
6
n
6
ASP
6
A
LYS
7
n
7
LYS
7
A
THR
8
n
8
THR
8
A
ASN
9
n
9
ASN
9
A
VAL
10
n
10
VAL
10
A
LYS
11
n
11
LYS
11
A
ALA
12
n
12
ALA
12
A
ALA
13
n
13
ALA
13
A
TRP
14
n
14
TRP
14
A
GLY
15
n
15
GLY
15
A
LYS
16
n
16
LYS
16
A
VAL
17
n
17
VAL
17
A
GLY
18
n
18
GLY
18
A
ALA
19
n
19
ALA
19
A
HIS
20
n
20
HIS
20
A
ALA
21
n
21
ALA
21
A
GLY
22
n
22
GLY
22
A
GLU
23
n
23
GLU
23
A
TYR
24
n
24
TYR
24
A
GLY
25
n
25
GLY
25
A
ALA
26
n
26
ALA
26
A
GLU
27
n
27
GLU
27
A
ALA
28
n
28
ALA
28
A
LEU
29
n
29
LEU
29
A
GLU
30
n
30
GLU
30
A
ARG
31
n
31
ARG
31
A
MET
32
n
32
MET
32
A
PHE
33
n
33
PHE
33
A
LEU
34
n
34
LEU
34
A
SER
35
n
35
SER
35
A
PHE
36
n
36
PHE
36
A
PRO
37
n
37
PRO
37
A
THR
38
n
38
THR
38
A
THR
39
n
39
THR
39
A
LYS
40
n
40
LYS
40
A
THR
41
n
41
THR
41
A
TYR
42
n
42
TYR
42
A
PHE
43
n
43
PHE
43
A
PRO
44
n
44
PRO
44
A
HIS
45
n
45
HIS
45
A
PHE
46
n
46
PHE
46
A
ASP
47
n
47
ASP
47
A
LEU
48
n
48
LEU
48
A
SER
49
n
49
SER
49
A
HIS
50
n
50
HIS
50
A
GLY
51
n
51
GLY
51
A
SER
52
n
52
SER
52
A
ALA
53
n
53
ALA
53
A
GLN
54
n
54
GLN
54
A
VAL
55
n
55
VAL
55
A
LYS
56
n
56
LYS
56
A
GLY
57
n
57
GLY
57
A
HIS
58
n
58
HIS
58
A
GLY
59
n
59
GLY
59
A
LYS
60
n
60
LYS
60
A
LYS
61
n
61
LYS
61
A
VAL
62
n
62
VAL
62
A
ALA
63
n
63
ALA
63
A
ASP
64
n
64
ASP
64
A
ALA
65
n
65
ALA
65
A
LEU
66
n
66
LEU
66
A
THR
67
n
67
THR
67
A
ASN
68
n
68
ASN
68
A
ALA
69
n
69
ALA
69
A
VAL
70
n
70
VAL
70
A
ALA
71
n
71
ALA
71
A
HIS
72
n
72
HIS
72
A
VAL
73
n
73
VAL
73
A
ASP
74
n
74
ASP
74
A
ASP
75
n
75
ASP
75
A
MET
76
n
76
MET
76
A
PRO
77
n
77
PRO
77
A
ASN
78
n
78
ASN
78
A
ALA
79
n
79
ALA
79
A
LEU
80
n
80
LEU
80
A
SER
81
n
81
SER
81
A
ALA
82
n
82
ALA
82
A
LEU
83
n
83
LEU
83
A
SER
84
n
84
SER
84
A
ASP
85
n
85
ASP
85
A
LEU
86
n
86
LEU
86
A
HIS
87
n
87
HIS
87
A
ALA
88
n
88
ALA
88
A
HIS
89
n
89
HIS
89
A
LYS
90
n
90
LYS
90
A
LEU
91
n
91
LEU
91
A
ARG
92
n
92
ARG
92
A
VAL
93
n
93
VAL
93
A
ASP
94
n
94
ASP
94
A
PRO
95
n
95
PRO
95
A
VAL
96
n
96
VAL
96
A
ASN
97
n
97
ASN
97
A
PHE
98
n
98
PHE
98
A
LYS
99
n
99
LYS
99
A
LEU
100
n
100
LEU
100
A
LEU
101
n
101
LEU
101
A
SER
102
n
102
SER
102
A
HIS
103
n
103
HIS
103
A
CYS
104
n
104
CYS
104
A
LEU
105
n
105
LEU
105
A
LEU
106
n
106
LEU
106
A
VAL
107
n
107
VAL
107
A
THR
108
n
108
THR
108
A
LEU
109
n
109
LEU
109
A
ALA
110
n
110
ALA
110
A
ALA
111
n
111
ALA
111
A
HIS
112
n
112
HIS
112
A
LEU
113
n
113
LEU
113
A
PRO
114
n
114
PRO
114
A
ALA
115
n
115
ALA
115
A
GLU
116
n
116
GLU
116
A
PHE
117
n
117
PHE
117
A
THR
118
n
118
THR
118
A
PRO
119
n
119
PRO
119
A
ALA
120
n
120
ALA
120
A
VAL
121
n
121
VAL
121
A
HIS
122
n
122
HIS
122
A
ALA
123
n
123
ALA
123
A
SER
124
n
124
SER
124
A
LEU
125
n
125
LEU
125
A
ASP
126
n
126
ASP
126
A
LYS
127
n
127
LYS
127
A
PHE
128
n
128
PHE
128
A
LEU
129
n
129
LEU
129
A
ALA
130
n
130
ALA
130
A
SER
131
n
131
SER
131
A
VAL
132
n
132
VAL
132
A
SER
133
n
133
SER
133
A
THR
134
n
134
THR
134
A
VAL
135
n
135
VAL
135
A
LEU
136
n
136
LEU
136
A
THR
137
n
137
THR
137
A
SER
138
n
138
SER
138
A
LYS
139
n
139
LYS
139
A
TYR
140
n
140
TYR
140
A
ARG
141
n
141
ARG
141
A
VAL
1
n
1
VAL
1
B
HIS
2
n
2
HIS
2
B
LEU
3
n
3
LEU
3
B
THR
4
n
4
THR
4
B
PRO
5
n
5
PRO
5
B
GLU
6
n
6
GLU
6
B
GLU
7
n
7
GLU
7
B
LYS
8
n
8
LYS
8
B
SER
9
n
9
SER
9
B
ALA
10
n
10
ALA
10
B
VAL
11
n
11
VAL
11
B
THR
12
n
12
THR
12
B
ALA
13
n
13
ALA
13
B
LEU
14
n
14
LEU
14
B
TRP
15
n
15
TRP
15
B
GLY
16
n
16
GLY
16
B
LYS
17
n
17
LYS
17
B
VAL
18
n
18
VAL
18
B
ASN
19
n
19
ASN
19
B
VAL
20
n
20
VAL
20
B
ASP
21
n
21
ASP
21
B
GLU
22
n
22
GLU
22
B
VAL
23
n
23
VAL
23
B
GLY
24
n
24
GLY
24
B
GLY
25
n
25
GLY
25
B
GLU
26
n
26
GLU
26
B
ALA
27
n
27
ALA
27
B
LEU
28
n
28
LEU
28
B
GLY
29
n
29
GLY
29
B
ARG
30
n
30
ARG
30
B
LEU
31
n
31
LEU
31
B
LEU
32
n
32
LEU
32
B
VAL
33
n
33
VAL
33
B
VAL
34
n
34
VAL
34
B
TYR
35
n
35
TYR
35
B
PRO
36
n
36
PRO
36
B
TRP
37
n
37
TRP
37
B
THR
38
n
38
THR
38
B
GLN
39
n
39
GLN
39
B
ARG
40
n
40
ARG
40
B
PHE
41
n
41
PHE
41
B
PHE
42
n
42
PHE
42
B
GLU
43
n
43
GLU
43
B
SER
44
n
44
SER
44
B
PHE
45
n
45
PHE
45
B
GLY
46
n
46
GLY
46
B
ASP
47
n
47
ASP
47
B
LEU
48
n
48
LEU
48
B
SER
49
n
49
SER
49
B
THR
50
n
50
THR
50
B
PRO
51
n
51
PRO
51
B
ASP
52
n
52
ASP
52
B
ALA
53
n
53
ALA
53
B
VAL
54
n
54
VAL
54
B
MET
55
n
55
MET
55
B
GLY
56
n
56
GLY
56
B
ASN
57
n
57
ASN
57
B
PRO
58
n
58
PRO
58
B
LYS
59
n
59
LYS
59
B
VAL
60
n
60
VAL
60
B
LYS
61
n
61
LYS
61
B
ALA
62
n
62
ALA
62
B
HIS
63
n
63
HIS
63
B
GLY
64
n
64
GLY
64
B
LYS
65
n
65
LYS
65
B
LYS
66
n
66
LYS
66
B
VAL
67
n
67
VAL
67
B
LEU
68
n
68
LEU
68
B
GLY
69
n
69
GLY
69
B
ALA
70
n
70
ALA
70
B
PHE
71
n
71
PHE
71
B
SER
72
n
72
SER
72
B
ASP
73
n
73
ASP
73
B
GLY
74
n
74
GLY
74
B
LEU
75
n
75
LEU
75
B
ALA
76
n
76
ALA
76
B
HIS
77
n
77
HIS
77
B
LEU
78
n
78
LEU
78
B
ASP
79
n
79
ASP
79
B
ASN
80
n
80
ASN
80
B
LEU
81
n
81
LEU
81
B
LYS
82
n
82
LYS
82
B
GLY
83
n
83
GLY
83
B
THR
84
n
84
THR
84
B
PHE
85
n
85
PHE
85
B
ALA
86
n
86
ALA
86
B
THR
87
n
87
THR
87
B
LEU
88
n
88
LEU
88
B
SER
89
n
89
SER
89
B
GLU
90
n
90
GLU
90
B
LEU
91
n
91
LEU
91
B
HIS
92
n
92
HIS
92
B
CYS
93
n
93
CYS
93
B
ASP
94
n
94
ASP
94
B
LYS
95
n
95
LYS
95
B
LEU
96
n
96
LEU
96
B
HIS
97
n
97
HIS
97
B
VAL
98
n
98
VAL
98
B
ASP
99
n
99
ASP
99
B
PRO
100
n
100
PRO
100
B
GLU
101
n
101
GLU
101
B
ASN
102
n
102
ASN
102
B
PHE
103
n
103
PHE
103
B
ARG
104
n
104
ARG
104
B
LEU
105
n
105
LEU
105
B
LEU
106
n
106
LEU
106
B
GLY
107
n
107
GLY
107
B
ASN
108
n
108
ASN
108
B
VAL
109
n
109
VAL
109
B
LEU
110
n
110
LEU
110
B
VAL
111
n
111
VAL
111
B
CYS
112
n
112
CYS
112
B
VAL
113
n
113
VAL
113
B
LEU
114
n
114
LEU
114
B
ALA
115
n
115
ALA
115
B
HIS
116
n
116
HIS
116
B
HIS
117
n
117
HIS
117
B
PHE
118
n
118
PHE
118
B
GLY
119
n
119
GLY
119
B
LYS
120
n
120
LYS
120
B
GLU
121
n
121
GLU
121
B
PHE
122
n
122
PHE
122
B
THR
123
n
123
THR
123
B
PRO
124
n
124
PRO
124
B
PRO
125
n
125
PRO
125
B
VAL
126
n
126
VAL
126
B
GLN
127
n
127
GLN
127
B
ALA
128
n
128
ALA
128
B
ALA
129
n
129
ALA
129
B
TYR
130
n
130
TYR
130
B
GLN
131
n
131
GLN
131
B
LYS
132
n
132
LYS
132
B
VAL
133
n
133
VAL
133
B
VAL
134
n
134
VAL
134
B
ALA
135
n
135
ALA
135
B
GLY
136
n
136
GLY
136
B
VAL
137
n
137
VAL
137
B
ALA
138
n
138
ALA
138
B
ASN
139
n
139
ASN
139
B
ALA
140
n
140
ALA
140
B
LEU
141
n
141
LEU
141
B
ALA
142
n
142
ALA
142
B
HIS
143
n
143
HIS
143
B
LYS
144
n
144
LYS
144
B
TYR
145
n
145
TYR
145
B
HIS
146
n
146
HIS
146
B
author_and_software_defined_assembly
PISA
4
tetrameric
7270
-26
24330
A
HIS
87
A
NE2
HIS
87
1_555
A
HEM
202
D
FE
HEM
1_555
A
HEM
202
D
NA
HEM
1_555
90.7
A
HIS
87
A
NE2
HIS
87
1_555
A
HEM
202
D
FE
HEM
1_555
A
HEM
202
D
NB
HEM
1_555
91.4
A
HEM
202
D
NA
HEM
1_555
A
HEM
202
D
FE
HEM
1_555
A
HEM
202
D
NB
HEM
1_555
92.8
A
HIS
87
A
NE2
HIS
87
1_555
A
HEM
202
D
FE
HEM
1_555
A
HEM
202
D
NC
HEM
1_555
98.5
A
HEM
202
D
NA
HEM
1_555
A
HEM
202
D
FE
HEM
1_555
A
HEM
202
D
NC
HEM
1_555
170.7
A
HEM
202
D
NB
HEM
1_555
A
HEM
202
D
FE
HEM
1_555
A
HEM
202
D
NC
HEM
1_555
87.8
A
HIS
87
A
NE2
HIS
87
1_555
A
HEM
202
D
FE
HEM
1_555
A
HEM
202
D
ND
HEM
1_555
92.5
A
HEM
202
D
NA
HEM
1_555
A
HEM
202
D
FE
HEM
1_555
A
HEM
202
D
ND
HEM
1_555
91.3
A
HEM
202
D
NB
HEM
1_555
A
HEM
202
D
FE
HEM
1_555
A
HEM
202
D
ND
HEM
1_555
174.4
A
HEM
202
D
NC
HEM
1_555
A
HEM
202
D
FE
HEM
1_555
A
HEM
202
D
ND
HEM
1_555
87.6
A
HIS
87
A
NE2
HIS
87
1_555
A
HEM
202
D
FE
HEM
1_555
A
CMO
201
C
C
CMO
1_555
176.3
A
HEM
202
D
NA
HEM
1_555
A
HEM
202
D
FE
HEM
1_555
A
CMO
201
C
C
CMO
1_555
89.6
A
HEM
202
D
NB
HEM
1_555
A
HEM
202
D
FE
HEM
1_555
A
CMO
201
C
C
CMO
1_555
84.9
A
HEM
202
D
NC
HEM
1_555
A
HEM
202
D
FE
HEM
1_555
A
CMO
201
C
C
CMO
1_555
81.2
A
HEM
202
D
ND
HEM
1_555
A
HEM
202
D
FE
HEM
1_555
A
CMO
201
C
C
CMO
1_555
91.2
B
HIS
92
B
NE2
HIS
92
1_555
B
HEM
202
L
FE
HEM
1_555
B
HEM
202
L
NA
HEM
1_555
84.1
B
HIS
92
B
NE2
HIS
92
1_555
B
HEM
202
L
FE
HEM
1_555
B
HEM
202
L
NB
HEM
1_555
83.7
B
HEM
202
L
NA
HEM
1_555
B
HEM
202
L
FE
HEM
1_555
B
HEM
202
L
NB
HEM
1_555
87.9
B
HIS
92
B
NE2
HIS
92
1_555
B
HEM
202
L
FE
HEM
1_555
B
HEM
202
L
NC
HEM
1_555
94.9
B
HEM
202
L
NA
HEM
1_555
B
HEM
202
L
FE
HEM
1_555
B
HEM
202
L
NC
HEM
1_555
178.8
B
HEM
202
L
NB
HEM
1_555
B
HEM
202
L
FE
HEM
1_555
B
HEM
202
L
NC
HEM
1_555
92.6
B
HIS
92
B
NE2
HIS
92
1_555
B
HEM
202
L
FE
HEM
1_555
B
HEM
202
L
ND
HEM
1_555
86.0
B
HEM
202
L
NA
HEM
1_555
B
HEM
202
L
FE
HEM
1_555
B
HEM
202
L
ND
HEM
1_555
89.8
B
HEM
202
L
NB
HEM
1_555
B
HEM
202
L
FE
HEM
1_555
B
HEM
202
L
ND
HEM
1_555
169.6
B
HEM
202
L
NC
HEM
1_555
B
HEM
202
L
FE
HEM
1_555
B
HEM
202
L
ND
HEM
1_555
89.5
B
HIS
92
B
NE2
HIS
92
1_555
B
HEM
202
L
FE
HEM
1_555
B
CMO
201
K
C
CMO
1_555
178.5
B
HEM
202
L
NA
HEM
1_555
B
HEM
202
L
FE
HEM
1_555
B
CMO
201
K
C
CMO
1_555
96.7
B
HEM
202
L
NB
HEM
1_555
B
HEM
202
L
FE
HEM
1_555
B
CMO
201
K
C
CMO
1_555
97.6
B
HEM
202
L
NC
HEM
1_555
B
HEM
202
L
FE
HEM
1_555
B
CMO
201
K
C
CMO
1_555
84.3
B
HEM
202
L
ND
HEM
1_555
B
HEM
202
L
FE
HEM
1_555
B
CMO
201
K
C
CMO
1_555
92.7
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
-1.0000000000
0.0000000000
-1.0000000000
0.0000000000
0.0000000000
0.0000000000
0.0000000000
-1.0000000000
8_665
-y+1,-x+1,-z+1/4
crystal symmetry operation
62.0636000000
62.0636000000
43.4704000000
1
A
HOH
301
Q
HOH
1
A
HOH
302
Q
HOH
1
B
HOH
301
R
HOH
1
B
HOH
302
R
HOH
1
B
HOH
303
R
HOH
1
B
HOH
311
R
HOH
1
A
A
O
O
HOH
HOH
339
371
2.17
1
B
B
NE2
NE2
HIS
HIS
143
143
2.06
1_555
8_665
1
A
PRO
37
-37.03
-32.35
1
A
THR
41
-66.63
4.47
1
A
HIS
45
-76.63
31.26
1
A
LEU
48
-69.94
15.90
1
A
SER
49
-58.21
170.40
1
A
HIS
50
-59.80
-93.95
1
A
SER
52
-37.70
141.65
1
A
HIS
72
-141.98
45.18
1
A
MET
76
-5.39
-58.25
1
A
ASN
78
-64.38
-77.24
1
A
ALA
79
-35.48
-22.38
1
B
ASN
19
-69.27
96.54
1
B
HIS
77
-147.28
55.38
1
B
ASP
79
-96.77
35.41
1
B
ASN
80
-164.72
18.28
1
B
HIS
97
77.06
36.22
1
B
PRO
100
-39.18
-28.41
47.2
2.84
0.00
0.00
2.84
0.00
-5.67
0.259
0.008
0.228
0.234
0.228
2.15
18.59
979
19071
19071
5.1
98.7
RANDOM
2325812.50
0.000000
1
RESTRAINED
THROUGHOUT
0.0
FOURIER SYNTHESIS
PDB ENTRY 1YZI
Engh & Huber
FLAT MODEL
84.9353
0.380658
0.32
0.29
5.00
0.46
0.46
2.15
18.59
158
2540
190
0
2192
0.013
2.0
18.9
1.39
1
NONE
1
X-RAY DIFFRACTION
0.376
0.038
0.392
2.23
99
1744
10
5.4
97.9
35.8
2.15
29.2
4NI0
19122
19122
0
0
0.095
1
14.9
10.8
98.6
0.45
2.15
2.18
5.4
1
11.2
97.9
data collection
CrystalClear
refinement
CNS
data reduction
d*TREK
data scaling
d*TREK
phasing
CNS
Quaternary R3 CO-liganded hemoglobin structure in complex with a thiol containing compound
1
N
N
2
N
N
3
N
N
4
N
N
5
N
N
5
N
N
6
N
N
6
N
N
6
N
N
7
N
N
3
N
N
4
N
N
5
N
N
5
N
N
7
N
N
7
N
N
8
N
N
8
N
N
A
SER
3
A
SER
3
HELX_P
A
GLY
18
A
GLY
18
1
1
16
A
HIS
20
A
HIS
20
HELX_P
A
PHE
36
A
PHE
36
1
2
17
A
PRO
37
A
PRO
37
HELX_P
A
PHE
43
A
PHE
43
5
3
7
A
SER
52
A
SER
52
HELX_P
A
ALA
71
A
ALA
71
1
4
20
A
LEU
80
A
LEU
80
HELX_P
A
HIS
89
A
HIS
89
1
5
10
A
PRO
95
A
PRO
95
HELX_P
A
LEU
113
A
LEU
113
1
6
19
A
THR
118
A
THR
118
HELX_P
A
THR
137
A
THR
137
1
7
20
A
SER
138
A
SER
138
HELX_P
A
ARG
141
A
ARG
141
5
8
4
B
THR
4
B
THR
4
HELX_P
B
LYS
17
B
LYS
17
1
9
14
B
GLU
22
B
GLU
22
HELX_P
B
TYR
35
B
TYR
35
1
10
14
B
PRO
36
B
PRO
36
HELX_P
B
GLY
46
B
GLY
46
5
11
11
B
THR
50
B
THR
50
HELX_P
B
ASN
57
B
ASN
57
1
12
8
B
ASN
57
B
ASN
57
HELX_P
B
HIS
77
B
HIS
77
1
13
21
B
ASN
80
B
ASN
80
HELX_P
B
PHE
85
B
PHE
85
1
14
6
B
PHE
85
B
PHE
85
HELX_P
B
ASP
94
B
ASP
94
1
15
10
B
ASP
99
B
ASP
99
HELX_P
B
GLY
119
B
GLY
119
1
16
21
B
LYS
120
B
LYS
120
HELX_P
B
PHE
122
B
PHE
122
5
17
3
B
THR
123
B
THR
123
HELX_P
B
LYS
144
B
LYS
144
1
18
22
covale
1.933
none
B
CYS
93
B
SG
CYS
93
1_555
B
2P3
203
M
S1
2P3
1_555
covale
1.781
none
B
CYS
112
B
SG
CYS
112
1_555
B
2P3
204
N
S1
2P3
1_555
metalc
1.987
A
HIS
87
A
NE2
HIS
87
1_555
A
HEM
202
D
FE
HEM
1_555
metalc
1.809
A
CMO
201
C
C
CMO
1_555
A
HEM
202
D
FE
HEM
1_555
metalc
2.077
B
HIS
92
B
NE2
HIS
92
1_555
B
HEM
202
L
FE
HEM
1_555
metalc
1.860
B
CMO
201
K
C
CMO
1_555
B
HEM
202
L
FE
HEM
1_555
OXYGEN TRANSPORT
allosteric, tetramer, oxygen transport, relaxed state, Tense state, globin fold, Red blood cell
HBA_HUMAN
UNP
1
2
P69905
VLSPADKTNVKAAWGKVGAHAGEYGAEALERMFLSFPTTKTYFPHFDLSHGSAQVKGHGKKVADALTNAVAHVDDMPNAL
SALSDLHAHKLRVDPVNFKLLSHCLLVTLAAHLPAEFTPAVHASLDKFLASVSTVLTSKYR
HBB_HUMAN
UNP
2
2
P68871
VHLTPEEKSAVTALWGKVNVDEVGGEALGRLLVVYPWTQRFFESFGDLSTPDAVMGNPKVKAHGKKVLGAFSDGLAHLDN
LKGTFATLSELHCDKLHVDPENFRLLGNVLVCVLAHHFGKEFTPPVQAAYQKVVAGVANALAHKYH
2
142
4NI0
1
141
P69905
A
1
1
141
2
147
4NI0
1
146
P68871
B
2
1
146
BINDING SITE FOR RESIDUE CMO A 201
A
CMO
201
Software
3
BINDING SITE FOR RESIDUE HEM A 202
A
HEM
202
Software
15
BINDING SITE FOR RESIDUE 2P3 A 203
A
2P3
203
Software
12
BINDING SITE FOR RESIDUE 2P3 A 204
A
2P3
204
Software
8
BINDING SITE FOR RESIDUE MBN A 205
A
MBN
205
Software
6
BINDING SITE FOR RESIDUE MBN A 206
A
MBN
206
Software
4
BINDING SITE FOR RESIDUE MBN A 207
A
MBN
207
Software
5
BINDING SITE FOR RESIDUE PO4 A 208
A
PO4
208
Software
6
BINDING SITE FOR RESIDUE CMO B 201
B
CMO
201
Software
3
BINDING SITE FOR RESIDUE HEM B 202
B
HEM
202
Software
16
BINDING SITE FOR RESIDUE 2P3 B 203
B
2P3
203
Software
10
BINDING SITE FOR RESIDUE 2P3 B 204
B
2P3
204
Software
11
BINDING SITE FOR RESIDUE PO4 B 205
B
PO4
205
Software
7
BINDING SITE FOR RESIDUE PO4 B 206
B
PO4
206
Software
4
A
HIS
58
A
HIS
58
3
1_555
A
VAL
62
A
VAL
62
3
1_555
A
HEM
202
D
HEM
3
1_555
A
TYR
42
A
TYR
42
15
1_555
A
PHE
43
A
PHE
43
15
1_555
A
PHE
46
A
PHE
46
15
1_555
A
HIS
58
A
HIS
58
15
1_555
A
LYS
61
A
LYS
61
15
1_555
A
LEU
86
A
LEU
86
15
1_555
A
HIS
87
A
HIS
87
15
1_555
A
LEU
91
A
LEU
91
15
1_555
A
VAL
93
A
VAL
93
15
1_555
A
ASN
97
A
ASN
97
15
1_555
A
PHE
98
A
PHE
98
15
1_555
A
LEU
101
A
LEU
101
15
1_555
A
LEU
136
A
LEU
136
15
1_555
A
CMO
201
C
CMO
15
1_555
A
HOH
382
Q
HOH
15
1_555
A
LYS
99
A
LYS
99
12
1_555
A
SER
102
A
SER
102
12
1_555
A
HIS
103
A
HIS
103
12
1_555
A
ASP
126
A
ASP
126
12
1_555
A
2P3
204
F
2P3
12
1_555
A
2P3
204
F
2P3
12
8_665
A
HOH
329
Q
HOH
12
1_555
A
HOH
355
Q
HOH
12
8_665
B
TYR
35
B
TYR
35
12
1_555
B
TRP
37
B
TRP
37
12
1_555
B
GLU
101
B
GLU
101
12
1_555
B
2P3
204
N
2P3
12
1_555
A
PRO
95
A
PRO
95
8
1_555
A
LYS
99
A
LYS
99
8
1_555
A
ALA
130
A
ALA
130
8
1_555
A
SER
133
A
SER
133
8
1_555
A
THR
137
A
THR
137
8
1_555
A
ARG
141
A
ARG
141
8
1_555
A
2P3
203
E
2P3
8
1_555
A
2P3
203
E
2P3
8
8_665
A
ALA
12
A
ALA
12
6
1_555
A
ALA
13
A
ALA
13
6
1_555
A
LYS
16
A
LYS
16
6
1_555
A
GLU
116
A
GLU
116
6
1_555
B
ASP
52
B
ASP
52
6
6_565
B
GLY
56
B
GLY
56
6
6_565
A
LEU
66
A
LEU
66
4
1_555
A
LEU
105
A
LEU
105
4
1_555
A
LEU
109
A
LEU
109
4
1_555
A
MBN
207
I
MBN
4
1_555
A
TRP
14
A
TRP
14
5
1_555
A
ALA
63
A
ALA
63
5
1_555
A
THR
67
A
THR
67
5
1_555
A
VAL
70
A
VAL
70
5
1_555
A
MBN
206
H
MBN
5
1_555
A
HIS
20
A
HIS
20
6
1_555
A
TYR
24
A
TYR
24
6
1_555
A
HIS
112
A
HIS
112
6
1_555
A
HOH
353
Q
HOH
6
1_555
A
HOH
365
Q
HOH
6
1_555
B
LYS
120
B
LYS
120
6
1_555
B
HIS
63
B
HIS
63
3
1_555
B
VAL
67
B
VAL
67
3
1_555
B
HEM
202
L
HEM
3
1_555
B
PHE
41
B
PHE
41
16
1_555
B
PHE
42
B
PHE
42
16
1_555
B
HIS
63
B
HIS
63
16
1_555
B
LYS
66
B
LYS
66
16
1_555
B
PHE
71
B
PHE
71
16
1_555
B
HIS
92
B
HIS
92
16
1_555
B
LEU
96
B
LEU
96
16
1_555
B
VAL
98
B
VAL
98
16
1_555
B
ASN
102
B
ASN
102
16
1_555
B
PHE
103
B
PHE
103
16
1_555
B
LEU
106
B
LEU
106
16
1_555
B
VAL
137
B
VAL
137
16
1_555
B
LEU
141
B
LEU
141
16
1_555
B
CMO
201
K
CMO
16
1_555
B
HOH
304
R
HOH
16
1_555
B
HOH
305
R
HOH
16
1_555
B
CYS
93
B
CYS
93
10
1_555
B
VAL
98
B
VAL
98
10
1_555
B
PRO
100
B
PRO
100
10
1_555
B
ARG
104
B
ARG
104
10
8_665
B
ALA
135
B
ALA
135
10
8_665
B
ALA
138
B
ALA
138
10
8_665
B
ASN
139
B
ASN
139
10
8_665
B
ALA
142
B
ALA
142
10
1_555
B
TYR
145
B
TYR
145
10
1_555
B
HOH
342
R
HOH
10
1_555
A
HIS
103
A
HIS
103
11
1_555
A
LEU
106
A
LEU
106
11
1_555
A
HIS
122
A
HIS
122
11
1_555
A
2P3
203
E
2P3
11
1_555
B
TYR
35
B
TYR
35
11
1_555
B
GLU
101
B
GLU
101
11
1_555
B
ARG
104
B
ARG
104
11
1_555
B
LEU
105
B
LEU
105
11
1_555
B
ASN
108
B
ASN
108
11
1_555
B
VAL
109
B
VAL
109
11
1_555
B
CYS
112
B
CYS
112
11
1_555
B
VAL
33
B
VAL
33
7
1_555
B
GLN
39
B
GLN
39
7
1_555
B
LEU
48
B
LEU
48
7
1_555
B
SER
49
B
SER
49
7
1_555
B
THR
50
B
THR
50
7
1_555
B
HOH
325
R
HOH
7
1_555
B
HOH
334
R
HOH
7
1_555
B
HIS
2
B
HIS
2
4
1_555
B
LYS
59
B
LYS
59
4
4_664
B
HIS
146
B
HIS
146
4
8_665
B
HOH
308
R
HOH
4
1_555
91
P 41 2 2