0.016294
0.000000
0.002619
0.000000
0.018278
0.000000
0.000000
0.000000
0.014089
0.00000
0.00000
0.00000
Wang, J.
Lad, L.
Poulos, T.L.
Ortiz de montellano, P.R.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
4
90.00
99.13
90.00
61.371
54.712
71.889
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
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
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
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
S
C
N
76
N
C
N
77
N
O
N
78
N
C
N
79
N
C
N
80
N
C
N
81
N
O
N
82
N
N
N
83
N
O
N
84
N
H
N
85
N
H
N
86
N
H
N
87
N
H
N
88
N
H
N
89
N
H
N
90
N
H
N
91
N
H
N
92
N
H
N
93
N
H
N
94
N
N
N
95
S
C
N
96
N
C
N
97
N
O
N
98
N
C
N
99
N
C
N
100
N
C
N
101
N
O
N
102
N
O
N
103
N
O
N
104
N
H
N
105
N
H
N
106
N
H
N
107
N
H
N
108
N
H
N
109
N
H
N
110
N
H
N
111
N
H
N
112
N
H
N
113
N
N
N
114
N
C
N
115
N
C
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
C
N
124
N
C
N
125
N
C
N
126
N
C
Y
127
N
C
Y
128
N
C
Y
129
N
C
Y
130
N
C
N
131
N
C
N
132
N
C
N
133
N
C
N
134
N
C
N
135
N
O
N
136
N
O
N
137
N
C
N
138
N
C
N
139
N
C
N
140
N
C
N
141
N
C
N
142
N
C
N
143
N
C
Y
144
N
C
Y
145
N
C
Y
146
N
C
Y
147
N
C
N
148
N
C
N
149
N
C
N
150
N
C
N
151
N
C
N
152
N
C
N
153
N
C
N
154
N
C
N
155
N
C
N
156
N
C
N
157
N
C
N
158
N
C
N
159
N
O
N
160
N
O
Y
161
N
N
N
162
N
N
Y
163
N
N
N
164
N
N
N
165
N
FE
N
166
N
H
N
167
N
H
N
168
N
H
N
169
N
H
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
H
N
184
N
H
N
185
N
H
N
186
N
H
N
187
N
H
N
188
N
H
N
189
N
H
N
190
N
H
N
191
N
H
N
192
N
H
N
193
N
H
N
194
N
H
N
195
N
H
N
196
N
H
N
197
N
H
N
198
N
N
N
199
S
C
N
200
N
C
N
201
N
O
N
202
N
C
Y
203
N
C
Y
204
N
N
Y
205
N
C
Y
206
N
C
Y
207
N
N
N
208
N
O
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
O
N
220
N
H
N
221
N
H
N
222
N
N
N
223
S
C
N
224
N
C
N
225
N
O
N
226
S
C
N
227
N
C
N
228
N
C
N
229
N
C
N
230
N
O
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
H
N
240
N
H
N
241
N
H
N
242
N
H
N
243
N
H
N
244
N
N
N
245
S
C
N
246
N
C
N
247
N
O
N
248
N
C
N
249
N
C
N
250
N
C
N
251
N
C
N
252
N
O
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
H
N
264
N
H
N
265
N
H
N
266
N
N
N
267
S
C
N
268
N
C
N
269
N
O
N
270
N
C
N
271
N
C
N
272
N
C
N
273
N
C
N
274
N
N
N
275
N
O
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
H
N
286
N
H
N
287
N
H
N
288
N
H
N
289
N
H
N
290
N
H
N
291
N
N
N
292
S
C
N
293
N
C
N
294
N
O
N
295
N
C
N
296
N
C
N
297
N
S
N
298
N
C
N
299
N
O
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
H
N
311
N
N
N
312
S
C
N
313
N
C
N
314
N
O
N
315
N
C
Y
316
N
C
Y
317
N
C
Y
318
N
C
Y
319
N
C
Y
320
N
C
Y
321
N
C
N
322
N
O
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
H
N
330
N
H
N
331
N
H
N
332
N
H
N
333
N
H
N
334
N
N
N
335
S
C
N
336
N
C
N
337
N
O
N
338
N
C
N
339
N
C
N
340
N
C
N
341
N
O
N
342
N
H
N
343
N
H
N
344
N
H
N
345
N
H
N
346
N
H
N
347
N
H
N
348
N
H
N
349
N
H
N
350
N
H
N
351
N
N
N
352
S
C
N
353
N
C
N
354
N
O
N
355
N
C
N
356
N
O
N
357
N
O
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
N
N
366
S
C
N
367
N
C
N
368
N
O
N
369
R
C
N
370
N
O
N
371
N
C
N
372
N
O
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
H
N
381
N
H
N
382
N
N
N
383
S
C
N
384
N
C
N
385
N
O
N
386
N
C
Y
387
N
C
Y
388
N
C
Y
389
N
C
Y
390
N
N
Y
391
N
C
Y
392
N
C
Y
393
N
C
Y
394
N
C
Y
395
N
C
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
H
N
405
N
H
N
406
N
H
N
407
N
H
N
408
N
H
N
409
N
N
N
410
S
C
N
411
N
C
N
412
N
O
N
413
N
C
Y
414
N
C
Y
415
N
C
Y
416
N
C
Y
417
N
C
Y
418
N
C
Y
419
N
C
N
420
N
O
N
421
N
O
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
430
N
H
N
431
N
H
N
432
N
H
N
433
N
N
N
434
S
C
N
435
N
C
N
436
N
O
N
437
N
C
N
438
N
C
N
439
N
C
N
440
N
O
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
H
N
449
N
H
N
450
N
H
N
451
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
doub
N
85
N
sing
N
86
N
sing
N
87
N
sing
N
88
N
sing
N
89
N
sing
N
90
N
sing
N
91
N
sing
N
92
N
sing
N
93
N
sing
N
94
N
sing
N
95
N
doub
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
doub
N
104
N
sing
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
doub
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
doub
N
121
N
sing
N
122
N
sing
N
123
N
doub
N
124
N
sing
N
125
N
doub
N
126
N
sing
N
127
N
sing
Y
128
N
doub
Y
129
N
sing
Y
130
N
sing
N
131
N
sing
Y
132
N
doub
N
133
N
sing
Y
134
N
sing
N
135
N
sing
N
136
N
sing
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
doub
N
149
N
sing
N
150
N
sing
N
151
N
sing
N
152
N
doub
N
153
N
sing
N
154
N
sing
N
155
N
sing
N
156
N
doub
N
157
N
sing
N
158
N
sing
N
159
N
sing
Y
160
N
sing
Y
161
N
sing
Y
162
N
doub
N
163
N
sing
Y
164
N
sing
N
165
N
sing
Y
166
N
sing
N
167
N
sing
N
168
N
sing
N
169
N
sing
N
170
N
doub
N
171
N
sing
N
172
N
sing
N
173
N
sing
N
174
N
sing
N
175
N
doub
N
176
N
doub
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
doub
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
doub
N
205
N
sing
N
206
N
sing
N
207
N
sing
N
208
N
sing
Y
209
N
sing
Y
210
N
doub
Y
211
N
doub
N
212
N
sing
Y
213
N
sing
N
214
N
sing
Y
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
doub
N
228
N
sing
N
229
N
sing
N
230
N
sing
N
231
N
sing
N
232
N
sing
N
233
N
sing
N
234
N
sing
N
235
N
sing
N
236
N
sing
N
237
N
sing
N
238
N
sing
N
239
N
sing
N
240
N
sing
N
241
N
sing
N
242
N
sing
N
243
N
sing
N
244
N
sing
N
245
N
sing
N
246
N
sing
N
247
N
sing
N
248
N
doub
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
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
doub
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
sing
N
290
N
sing
N
291
N
sing
N
292
N
sing
N
293
N
doub
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
N
311
N
sing
N
312
N
doub
N
313
N
sing
N
314
N
sing
N
315
N
sing
N
316
N
sing
Y
317
N
doub
Y
318
N
sing
Y
319
N
sing
N
320
N
sing
Y
321
N
doub
N
322
N
sing
Y
323
N
doub
N
324
N
sing
Y
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
sing
N
352
N
doub
N
353
N
sing
N
354
N
sing
N
355
N
sing
N
356
N
sing
N
357
N
sing
N
358
N
sing
N
359
N
sing
N
360
N
sing
N
361
N
sing
N
362
N
sing
N
363
N
sing
N
364
N
sing
N
365
N
doub
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
sing
N
375
N
sing
N
376
N
sing
N
377
N
sing
N
378
N
sing
N
379
N
sing
N
380
N
sing
N
381
N
doub
N
382
N
sing
N
383
N
sing
N
384
N
sing
N
385
N
sing
Y
386
N
doub
Y
387
N
sing
Y
388
N
sing
N
389
N
sing
Y
390
N
doub
Y
391
N
sing
Y
392
N
sing
N
393
N
sing
Y
394
N
sing
Y
395
N
doub
N
396
N
sing
Y
397
N
doub
N
398
N
sing
Y
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
N
408
N
sing
N
409
N
doub
N
410
N
sing
N
411
N
sing
N
412
N
sing
N
413
N
sing
Y
414
N
doub
Y
415
N
sing
Y
416
N
sing
N
417
N
sing
Y
418
N
doub
N
419
N
sing
Y
420
N
doub
N
421
N
sing
Y
422
N
sing
N
423
N
sing
N
424
N
sing
N
425
N
sing
N
426
N
sing
N
427
N
sing
N
428
N
sing
N
429
N
sing
N
430
N
sing
N
431
N
sing
N
432
N
sing
N
433
N
doub
N
434
N
sing
N
435
N
sing
N
436
N
sing
N
437
N
sing
N
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
US
J.Biol.Chem.
JBCHA3
0071
0021-9258
280
2797
2806
10.1074/jbc.M411229200
15525643
Regiospecificity determinants of human heme oxygenase: differential NADPH- and ascorbate-dependent heme cleavage by the R183E mutant.
2005
10.2210/pdb1xk2/pdb
pdb_00001xk2
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
1
IMAGE PLATE
2004-06-04
RIGAKU RAXIS IV
SINGLE WAVELENGTH
M
x-ray
1
1.53
1.0
1.53
ROTATING ANODE
RIGAKU
26870.535
Heme oxygenase 1
1.14.99.3
R183E
2
man
polymer
616.487
PROTOPORPHYRIN IX CONTAINING FE
2
syn
non-polymer
18.015
water
206
nat
water
HO-1
no
no
MERPQPDSMPQDLSEALKEATKEVHTQAENAEFMRNFQKGQVTRDGFKLVMASLYHIYVALEEEIERNKESPVFAPVYFP
EELHRKAALEQDLAFWYGPRWQEVIPYTPAMQRYVKRLHEVGRTEPELLVAHAYTRYLGDLSGGQVLKKIAQKALDLPSS
GEGLAFFTFPNIASATKFKQLYESRMNSLEMTPAVRQRVIEEAKTAFLLNIQLFEELQELLTHDTKDQSPSRA
MERPQPDSMPQDLSEALKEATKEVHTQAENAEFMRNFQKGQVTRDGFKLVMASLYHIYVALEEEIERNKESPVFAPVYFP
EELHRKAALEQDLAFWYGPRWQEVIPYTPAMQRYVKRLHEVGRTEPELLVAHAYTRYLGDLSGGQVLKKIAQKALDLPSS
GEGLAFFTFPNIASATKFKQLYESRMNSLEMTPAVRQRVIEEAKTAFLLNIQLFEELQELLTHDTKDQSPSRA
A,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
human
Homo
Escherichia
sample
HMOX1, HO1, HO
9606
Homo sapiens
562
Escherichia coli
1
2
44
VAPOR DIFFUSION, SITTING DROP
7.5
NH4SO4, hepes, hexanediol, pH 7.5, VAPOR DIFFUSION, SITTING DROP, temperature 293K
293
database_2
struct_conn
struct_ref_seq_dif
struct_site
chem_comp_atom
chem_comp_bond
repository
Initial release
Version format compliance
Version format compliance
Database references
Derived calculations
Data collection
1
0
2004-11-09
1
1
2008-04-30
1
2
2011-07-13
1
3
2021-10-20
1
4
2024-02-14
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_struct_conn.pdbx_dist_value
_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_ref_seq_dif.details
_struct_site.pdbx_auth_asym_id
_struct_site.pdbx_auth_comp_id
_struct_site.pdbx_auth_seq_id
RCSB
Y
RCSB
2004-09-26
REL
REL
HEM
PROTOPORPHYRIN IX CONTAINING FE
HOH
water
HEM
300
2
HEM
HEM
300
A
HEM
300
2
HEM
HEM
300
B
HOH
1
3
HOH
HOH
301
A
HOH
4
3
HOH
HOH
302
A
HOH
6
3
HOH
HOH
303
A
HOH
8
3
HOH
HOH
304
A
HOH
11
3
HOH
HOH
305
A
HOH
15
3
HOH
HOH
306
A
HOH
18
3
HOH
HOH
307
A
HOH
22
3
HOH
HOH
308
A
HOH
23
3
HOH
HOH
309
A
HOH
26
3
HOH
HOH
310
A
HOH
27
3
HOH
HOH
311
A
HOH
28
3
HOH
HOH
312
A
HOH
29
3
HOH
HOH
313
A
HOH
31
3
HOH
HOH
314
A
HOH
32
3
HOH
HOH
315
A
HOH
33
3
HOH
HOH
316
A
HOH
34
3
HOH
HOH
317
A
HOH
36
3
HOH
HOH
318
A
HOH
37
3
HOH
HOH
319
A
HOH
38
3
HOH
HOH
320
A
HOH
41
3
HOH
HOH
321
A
HOH
42
3
HOH
HOH
322
A
HOH
43
3
HOH
HOH
323
A
HOH
45
3
HOH
HOH
324
A
HOH
46
3
HOH
HOH
325
A
HOH
49
3
HOH
HOH
326
A
HOH
50
3
HOH
HOH
327
A
HOH
51
3
HOH
HOH
328
A
HOH
52
3
HOH
HOH
329
A
HOH
56
3
HOH
HOH
330
A
HOH
59
3
HOH
HOH
331
A
HOH
60
3
HOH
HOH
332
A
HOH
61
3
HOH
HOH
333
A
HOH
63
3
HOH
HOH
334
A
HOH
64
3
HOH
HOH
335
A
HOH
65
3
HOH
HOH
336
A
HOH
66
3
HOH
HOH
337
A
HOH
67
3
HOH
HOH
338
A
HOH
68
3
HOH
HOH
339
A
HOH
69
3
HOH
HOH
340
A
HOH
70
3
HOH
HOH
341
A
HOH
71
3
HOH
HOH
342
A
HOH
72
3
HOH
HOH
343
A
HOH
73
3
HOH
HOH
344
A
HOH
74
3
HOH
HOH
345
A
HOH
75
3
HOH
HOH
346
A
HOH
76
3
HOH
HOH
347
A
HOH
77
3
HOH
HOH
348
A
HOH
78
3
HOH
HOH
349
A
HOH
79
3
HOH
HOH
350
A
HOH
80
3
HOH
HOH
351
A
HOH
81
3
HOH
HOH
352
A
HOH
82
3
HOH
HOH
353
A
HOH
83
3
HOH
HOH
354
A
HOH
84
3
HOH
HOH
355
A
HOH
85
3
HOH
HOH
356
A
HOH
86
3
HOH
HOH
357
A
HOH
87
3
HOH
HOH
358
A
HOH
88
3
HOH
HOH
359
A
HOH
90
3
HOH
HOH
360
A
HOH
91
3
HOH
HOH
361
A
HOH
92
3
HOH
HOH
362
A
HOH
93
3
HOH
HOH
363
A
HOH
94
3
HOH
HOH
364
A
HOH
95
3
HOH
HOH
365
A
HOH
96
3
HOH
HOH
366
A
HOH
97
3
HOH
HOH
367
A
HOH
98
3
HOH
HOH
368
A
HOH
99
3
HOH
HOH
369
A
HOH
100
3
HOH
HOH
370
A
HOH
101
3
HOH
HOH
371
A
HOH
102
3
HOH
HOH
372
A
HOH
103
3
HOH
HOH
373
A
HOH
107
3
HOH
HOH
374
A
HOH
109
3
HOH
HOH
375
A
HOH
110
3
HOH
HOH
376
A
HOH
111
3
HOH
HOH
377
A
HOH
112
3
HOH
HOH
378
A
HOH
113
3
HOH
HOH
379
A
HOH
114
3
HOH
HOH
380
A
HOH
117
3
HOH
HOH
381
A
HOH
118
3
HOH
HOH
382
A
HOH
119
3
HOH
HOH
383
A
HOH
120
3
HOH
HOH
384
A
HOH
121
3
HOH
HOH
385
A
HOH
122
3
HOH
HOH
386
A
HOH
123
3
HOH
HOH
387
A
HOH
124
3
HOH
HOH
388
A
HOH
125
3
HOH
HOH
389
A
HOH
150
3
HOH
HOH
390
A
HOH
151
3
HOH
HOH
391
A
HOH
152
3
HOH
HOH
392
A
HOH
153
3
HOH
HOH
393
A
HOH
154
3
HOH
HOH
394
A
HOH
155
3
HOH
HOH
395
A
HOH
156
3
HOH
HOH
396
A
HOH
158
3
HOH
HOH
397
A
HOH
159
3
HOH
HOH
398
A
HOH
160
3
HOH
HOH
399
A
HOH
162
3
HOH
HOH
400
A
HOH
165
3
HOH
HOH
401
A
HOH
166
3
HOH
HOH
402
A
HOH
176
3
HOH
HOH
403
A
HOH
177
3
HOH
HOH
404
A
HOH
180
3
HOH
HOH
405
A
HOH
181
3
HOH
HOH
406
A
HOH
182
3
HOH
HOH
407
A
HOH
183
3
HOH
HOH
408
A
HOH
184
3
HOH
HOH
409
A
HOH
185
3
HOH
HOH
410
A
HOH
188
3
HOH
HOH
411
A
HOH
190
3
HOH
HOH
412
A
HOH
191
3
HOH
HOH
413
A
HOH
192
3
HOH
HOH
414
A
HOH
193
3
HOH
HOH
415
A
HOH
194
3
HOH
HOH
416
A
HOH
209
3
HOH
HOH
417
A
HOH
211
3
HOH
HOH
418
A
HOH
2
3
HOH
HOH
301
B
HOH
3
3
HOH
HOH
302
B
HOH
5
3
HOH
HOH
303
B
HOH
7
3
HOH
HOH
304
B
HOH
9
3
HOH
HOH
305
B
HOH
10
3
HOH
HOH
306
B
HOH
12
3
HOH
HOH
307
B
HOH
13
3
HOH
HOH
308
B
HOH
14
3
HOH
HOH
309
B
HOH
16
3
HOH
HOH
310
B
HOH
17
3
HOH
HOH
311
B
HOH
19
3
HOH
HOH
312
B
HOH
20
3
HOH
HOH
313
B
HOH
21
3
HOH
HOH
314
B
HOH
24
3
HOH
HOH
315
B
HOH
25
3
HOH
HOH
316
B
HOH
30
3
HOH
HOH
317
B
HOH
35
3
HOH
HOH
318
B
HOH
39
3
HOH
HOH
319
B
HOH
40
3
HOH
HOH
320
B
HOH
44
3
HOH
HOH
321
B
HOH
47
3
HOH
HOH
322
B
HOH
48
3
HOH
HOH
323
B
HOH
53
3
HOH
HOH
324
B
HOH
54
3
HOH
HOH
325
B
HOH
55
3
HOH
HOH
326
B
HOH
57
3
HOH
HOH
327
B
HOH
58
3
HOH
HOH
328
B
HOH
62
3
HOH
HOH
329
B
HOH
89
3
HOH
HOH
330
B
HOH
104
3
HOH
HOH
331
B
HOH
105
3
HOH
HOH
332
B
HOH
106
3
HOH
HOH
333
B
HOH
108
3
HOH
HOH
334
B
HOH
115
3
HOH
HOH
335
B
HOH
116
3
HOH
HOH
336
B
HOH
126
3
HOH
HOH
337
B
HOH
127
3
HOH
HOH
338
B
HOH
128
3
HOH
HOH
339
B
HOH
129
3
HOH
HOH
340
B
HOH
130
3
HOH
HOH
341
B
HOH
131
3
HOH
HOH
342
B
HOH
132
3
HOH
HOH
343
B
HOH
133
3
HOH
HOH
344
B
HOH
134
3
HOH
HOH
345
B
HOH
135
3
HOH
HOH
346
B
HOH
136
3
HOH
HOH
347
B
HOH
137
3
HOH
HOH
348
B
HOH
138
3
HOH
HOH
349
B
HOH
139
3
HOH
HOH
350
B
HOH
140
3
HOH
HOH
351
B
HOH
141
3
HOH
HOH
352
B
HOH
142
3
HOH
HOH
353
B
HOH
143
3
HOH
HOH
354
B
HOH
144
3
HOH
HOH
355
B
HOH
145
3
HOH
HOH
356
B
HOH
146
3
HOH
HOH
357
B
HOH
147
3
HOH
HOH
358
B
HOH
148
3
HOH
HOH
359
B
HOH
149
3
HOH
HOH
360
B
HOH
157
3
HOH
HOH
361
B
HOH
161
3
HOH
HOH
362
B
HOH
163
3
HOH
HOH
363
B
HOH
164
3
HOH
HOH
364
B
HOH
167
3
HOH
HOH
365
B
HOH
168
3
HOH
HOH
366
B
HOH
169
3
HOH
HOH
367
B
HOH
170
3
HOH
HOH
368
B
HOH
171
3
HOH
HOH
369
B
HOH
172
3
HOH
HOH
370
B
HOH
173
3
HOH
HOH
371
B
HOH
174
3
HOH
HOH
372
B
HOH
175
3
HOH
HOH
373
B
HOH
178
3
HOH
HOH
374
B
HOH
179
3
HOH
HOH
375
B
HOH
187
3
HOH
HOH
376
B
HOH
196
3
HOH
HOH
377
B
HOH
197
3
HOH
HOH
378
B
HOH
198
3
HOH
HOH
379
B
HOH
199
3
HOH
HOH
380
B
HOH
200
3
HOH
HOH
381
B
HOH
201
3
HOH
HOH
382
B
HOH
203
3
HOH
HOH
383
B
HOH
204
3
HOH
HOH
384
B
HOH
205
3
HOH
HOH
385
B
HOH
206
3
HOH
HOH
386
B
HOH
208
3
HOH
HOH
387
B
HOH
210
3
HOH
HOH
388
B
n
1
1
A
n
2
2
A
n
3
3
A
n
4
4
A
n
5
5
A
n
6
6
A
n
7
7
A
n
8
8
A
n
9
9
A
PRO
10
n
10
PRO
10
A
GLN
11
n
11
GLN
11
A
ASP
12
n
12
ASP
12
A
LEU
13
n
13
LEU
13
A
SER
14
n
14
SER
14
A
GLU
15
n
15
GLU
15
A
ALA
16
n
16
ALA
16
A
LEU
17
n
17
LEU
17
A
LYS
18
n
18
LYS
18
A
GLU
19
n
19
GLU
19
A
ALA
20
n
20
ALA
20
A
THR
21
n
21
THR
21
A
LYS
22
n
22
LYS
22
A
GLU
23
n
23
GLU
23
A
VAL
24
n
24
VAL
24
A
HIS
25
n
25
HIS
25
A
THR
26
n
26
THR
26
A
GLN
27
n
27
GLN
27
A
ALA
28
n
28
ALA
28
A
GLU
29
n
29
GLU
29
A
ASN
30
n
30
ASN
30
A
ALA
31
n
31
ALA
31
A
GLU
32
n
32
GLU
32
A
PHE
33
n
33
PHE
33
A
MET
34
n
34
MET
34
A
ARG
35
n
35
ARG
35
A
ASN
36
n
36
ASN
36
A
PHE
37
n
37
PHE
37
A
GLN
38
n
38
GLN
38
A
LYS
39
n
39
LYS
39
A
GLY
40
n
40
GLY
40
A
GLN
41
n
41
GLN
41
A
VAL
42
n
42
VAL
42
A
THR
43
n
43
THR
43
A
ARG
44
n
44
ARG
44
A
ASP
45
n
45
ASP
45
A
GLY
46
n
46
GLY
46
A
PHE
47
n
47
PHE
47
A
LYS
48
n
48
LYS
48
A
LEU
49
n
49
LEU
49
A
VAL
50
n
50
VAL
50
A
MET
51
n
51
MET
51
A
ALA
52
n
52
ALA
52
A
SER
53
n
53
SER
53
A
LEU
54
n
54
LEU
54
A
TYR
55
n
55
TYR
55
A
HIS
56
n
56
HIS
56
A
ILE
57
n
57
ILE
57
A
TYR
58
n
58
TYR
58
A
VAL
59
n
59
VAL
59
A
ALA
60
n
60
ALA
60
A
LEU
61
n
61
LEU
61
A
GLU
62
n
62
GLU
62
A
GLU
63
n
63
GLU
63
A
GLU
64
n
64
GLU
64
A
ILE
65
n
65
ILE
65
A
GLU
66
n
66
GLU
66
A
ARG
67
n
67
ARG
67
A
ASN
68
n
68
ASN
68
A
LYS
69
n
69
LYS
69
A
GLU
70
n
70
GLU
70
A
SER
71
n
71
SER
71
A
PRO
72
n
72
PRO
72
A
VAL
73
n
73
VAL
73
A
PHE
74
n
74
PHE
74
A
ALA
75
n
75
ALA
75
A
PRO
76
n
76
PRO
76
A
VAL
77
n
77
VAL
77
A
TYR
78
n
78
TYR
78
A
PHE
79
n
79
PHE
79
A
PRO
80
n
80
PRO
80
A
GLU
81
n
81
GLU
81
A
GLU
82
n
82
GLU
82
A
LEU
83
n
83
LEU
83
A
HIS
84
n
84
HIS
84
A
ARG
85
n
85
ARG
85
A
LYS
86
n
86
LYS
86
A
ALA
87
n
87
ALA
87
A
ALA
88
n
88
ALA
88
A
LEU
89
n
89
LEU
89
A
GLU
90
n
90
GLU
90
A
GLN
91
n
91
GLN
91
A
ASP
92
n
92
ASP
92
A
LEU
93
n
93
LEU
93
A
ALA
94
n
94
ALA
94
A
PHE
95
n
95
PHE
95
A
TRP
96
n
96
TRP
96
A
TYR
97
n
97
TYR
97
A
GLY
98
n
98
GLY
98
A
PRO
99
n
99
PRO
99
A
ARG
100
n
100
ARG
100
A
TRP
101
n
101
TRP
101
A
GLN
102
n
102
GLN
102
A
GLU
103
n
103
GLU
103
A
VAL
104
n
104
VAL
104
A
ILE
105
n
105
ILE
105
A
PRO
106
n
106
PRO
106
A
TYR
107
n
107
TYR
107
A
THR
108
n
108
THR
108
A
PRO
109
n
109
PRO
109
A
ALA
110
n
110
ALA
110
A
MET
111
n
111
MET
111
A
GLN
112
n
112
GLN
112
A
ARG
113
n
113
ARG
113
A
TYR
114
n
114
TYR
114
A
VAL
115
n
115
VAL
115
A
LYS
116
n
116
LYS
116
A
ARG
117
n
117
ARG
117
A
LEU
118
n
118
LEU
118
A
HIS
119
n
119
HIS
119
A
GLU
120
n
120
GLU
120
A
VAL
121
n
121
VAL
121
A
GLY
122
n
122
GLY
122
A
ARG
123
n
123
ARG
123
A
THR
124
n
124
THR
124
A
GLU
125
n
125
GLU
125
A
PRO
126
n
126
PRO
126
A
GLU
127
n
127
GLU
127
A
LEU
128
n
128
LEU
128
A
LEU
129
n
129
LEU
129
A
VAL
130
n
130
VAL
130
A
ALA
131
n
131
ALA
131
A
HIS
132
n
132
HIS
132
A
ALA
133
n
133
ALA
133
A
TYR
134
n
134
TYR
134
A
THR
135
n
135
THR
135
A
ARG
136
n
136
ARG
136
A
TYR
137
n
137
TYR
137
A
LEU
138
n
138
LEU
138
A
GLY
139
n
139
GLY
139
A
ASP
140
n
140
ASP
140
A
LEU
141
n
141
LEU
141
A
SER
142
n
142
SER
142
A
GLY
143
n
143
GLY
143
A
GLY
144
n
144
GLY
144
A
GLN
145
n
145
GLN
145
A
VAL
146
n
146
VAL
146
A
LEU
147
n
147
LEU
147
A
LYS
148
n
148
LYS
148
A
LYS
149
n
149
LYS
149
A
ILE
150
n
150
ILE
150
A
ALA
151
n
151
ALA
151
A
GLN
152
n
152
GLN
152
A
LYS
153
n
153
LYS
153
A
ALA
154
n
154
ALA
154
A
LEU
155
n
155
LEU
155
A
ASP
156
n
156
ASP
156
A
LEU
157
n
157
LEU
157
A
PRO
158
n
158
PRO
158
A
SER
159
n
159
SER
159
A
SER
160
n
160
SER
160
A
GLY
161
n
161
GLY
161
A
GLU
162
n
162
GLU
162
A
GLY
163
n
163
GLY
163
A
LEU
164
n
164
LEU
164
A
ALA
165
n
165
ALA
165
A
PHE
166
n
166
PHE
166
A
PHE
167
n
167
PHE
167
A
THR
168
n
168
THR
168
A
PHE
169
n
169
PHE
169
A
PRO
170
n
170
PRO
170
A
ASN
171
n
171
ASN
171
A
ILE
172
n
172
ILE
172
A
ALA
173
n
173
ALA
173
A
SER
174
n
174
SER
174
A
ALA
175
n
175
ALA
175
A
THR
176
n
176
THR
176
A
LYS
177
n
177
LYS
177
A
PHE
178
n
178
PHE
178
A
LYS
179
n
179
LYS
179
A
GLN
180
n
180
GLN
180
A
LEU
181
n
181
LEU
181
A
TYR
182
n
182
TYR
182
A
GLU
183
n
183
GLU
183
A
SER
184
n
184
SER
184
A
ARG
185
n
185
ARG
185
A
MET
186
n
186
MET
186
A
ASN
187
n
187
ASN
187
A
SER
188
n
188
SER
188
A
LEU
189
n
189
LEU
189
A
GLU
190
n
190
GLU
190
A
MET
191
n
191
MET
191
A
THR
192
n
192
THR
192
A
PRO
193
n
193
PRO
193
A
ALA
194
n
194
ALA
194
A
VAL
195
n
195
VAL
195
A
ARG
196
n
196
ARG
196
A
GLN
197
n
197
GLN
197
A
ARG
198
n
198
ARG
198
A
VAL
199
n
199
VAL
199
A
ILE
200
n
200
ILE
200
A
GLU
201
n
201
GLU
201
A
GLU
202
n
202
GLU
202
A
ALA
203
n
203
ALA
203
A
LYS
204
n
204
LYS
204
A
THR
205
n
205
THR
205
A
ALA
206
n
206
ALA
206
A
PHE
207
n
207
PHE
207
A
LEU
208
n
208
LEU
208
A
LEU
209
n
209
LEU
209
A
ASN
210
n
210
ASN
210
A
ILE
211
n
211
ILE
211
A
GLN
212
n
212
GLN
212
A
LEU
213
n
213
LEU
213
A
PHE
214
n
214
PHE
214
A
GLU
215
n
215
GLU
215
A
GLU
216
n
216
GLU
216
A
LEU
217
n
217
LEU
217
A
GLN
218
n
218
GLN
218
A
GLU
219
n
219
GLU
219
A
LEU
220
n
220
LEU
220
A
LEU
221
n
221
LEU
221
A
THR
222
n
222
THR
222
A
HIS
223
n
223
HIS
223
A
n
224
224
A
n
225
225
A
n
226
226
A
n
227
227
A
n
228
228
A
n
229
229
A
n
230
230
A
n
231
231
A
n
232
232
A
n
233
233
A
n
1
1
B
n
2
2
B
n
3
3
B
n
4
4
B
n
5
5
B
n
6
6
B
n
7
7
B
n
8
8
B
n
9
9
B
PRO
10
n
10
PRO
10
B
GLN
11
n
11
GLN
11
B
ASP
12
n
12
ASP
12
B
LEU
13
n
13
LEU
13
B
SER
14
n
14
SER
14
B
GLU
15
n
15
GLU
15
B
ALA
16
n
16
ALA
16
B
LEU
17
n
17
LEU
17
B
LYS
18
n
18
LYS
18
B
GLU
19
n
19
GLU
19
B
ALA
20
n
20
ALA
20
B
THR
21
n
21
THR
21
B
LYS
22
n
22
LYS
22
B
GLU
23
n
23
GLU
23
B
VAL
24
n
24
VAL
24
B
HIS
25
n
25
HIS
25
B
THR
26
n
26
THR
26
B
GLN
27
n
27
GLN
27
B
ALA
28
n
28
ALA
28
B
GLU
29
n
29
GLU
29
B
ASN
30
n
30
ASN
30
B
ALA
31
n
31
ALA
31
B
GLU
32
n
32
GLU
32
B
PHE
33
n
33
PHE
33
B
MET
34
n
34
MET
34
B
ARG
35
n
35
ARG
35
B
ASN
36
n
36
ASN
36
B
PHE
37
n
37
PHE
37
B
GLN
38
n
38
GLN
38
B
LYS
39
n
39
LYS
39
B
GLY
40
n
40
GLY
40
B
GLN
41
n
41
GLN
41
B
VAL
42
n
42
VAL
42
B
THR
43
n
43
THR
43
B
ARG
44
n
44
ARG
44
B
ASP
45
n
45
ASP
45
B
GLY
46
n
46
GLY
46
B
PHE
47
n
47
PHE
47
B
LYS
48
n
48
LYS
48
B
LEU
49
n
49
LEU
49
B
VAL
50
n
50
VAL
50
B
MET
51
n
51
MET
51
B
ALA
52
n
52
ALA
52
B
SER
53
n
53
SER
53
B
LEU
54
n
54
LEU
54
B
TYR
55
n
55
TYR
55
B
HIS
56
n
56
HIS
56
B
ILE
57
n
57
ILE
57
B
TYR
58
n
58
TYR
58
B
VAL
59
n
59
VAL
59
B
ALA
60
n
60
ALA
60
B
LEU
61
n
61
LEU
61
B
GLU
62
n
62
GLU
62
B
GLU
63
n
63
GLU
63
B
GLU
64
n
64
GLU
64
B
ILE
65
n
65
ILE
65
B
GLU
66
n
66
GLU
66
B
ARG
67
n
67
ARG
67
B
ASN
68
n
68
ASN
68
B
LYS
69
n
69
LYS
69
B
GLU
70
n
70
GLU
70
B
SER
71
n
71
SER
71
B
PRO
72
n
72
PRO
72
B
VAL
73
n
73
VAL
73
B
PHE
74
n
74
PHE
74
B
ALA
75
n
75
ALA
75
B
PRO
76
n
76
PRO
76
B
VAL
77
n
77
VAL
77
B
TYR
78
n
78
TYR
78
B
PHE
79
n
79
PHE
79
B
PRO
80
n
80
PRO
80
B
GLU
81
n
81
GLU
81
B
GLU
82
n
82
GLU
82
B
LEU
83
n
83
LEU
83
B
HIS
84
n
84
HIS
84
B
ARG
85
n
85
ARG
85
B
LYS
86
n
86
LYS
86
B
ALA
87
n
87
ALA
87
B
ALA
88
n
88
ALA
88
B
LEU
89
n
89
LEU
89
B
GLU
90
n
90
GLU
90
B
GLN
91
n
91
GLN
91
B
ASP
92
n
92
ASP
92
B
LEU
93
n
93
LEU
93
B
ALA
94
n
94
ALA
94
B
PHE
95
n
95
PHE
95
B
TRP
96
n
96
TRP
96
B
TYR
97
n
97
TYR
97
B
GLY
98
n
98
GLY
98
B
PRO
99
n
99
PRO
99
B
ARG
100
n
100
ARG
100
B
TRP
101
n
101
TRP
101
B
GLN
102
n
102
GLN
102
B
GLU
103
n
103
GLU
103
B
VAL
104
n
104
VAL
104
B
ILE
105
n
105
ILE
105
B
PRO
106
n
106
PRO
106
B
TYR
107
n
107
TYR
107
B
THR
108
n
108
THR
108
B
PRO
109
n
109
PRO
109
B
ALA
110
n
110
ALA
110
B
MET
111
n
111
MET
111
B
GLN
112
n
112
GLN
112
B
ARG
113
n
113
ARG
113
B
TYR
114
n
114
TYR
114
B
VAL
115
n
115
VAL
115
B
LYS
116
n
116
LYS
116
B
ARG
117
n
117
ARG
117
B
LEU
118
n
118
LEU
118
B
HIS
119
n
119
HIS
119
B
GLU
120
n
120
GLU
120
B
VAL
121
n
121
VAL
121
B
GLY
122
n
122
GLY
122
B
ARG
123
n
123
ARG
123
B
THR
124
n
124
THR
124
B
GLU
125
n
125
GLU
125
B
PRO
126
n
126
PRO
126
B
GLU
127
n
127
GLU
127
B
LEU
128
n
128
LEU
128
B
LEU
129
n
129
LEU
129
B
VAL
130
n
130
VAL
130
B
ALA
131
n
131
ALA
131
B
HIS
132
n
132
HIS
132
B
ALA
133
n
133
ALA
133
B
TYR
134
n
134
TYR
134
B
THR
135
n
135
THR
135
B
ARG
136
n
136
ARG
136
B
TYR
137
n
137
TYR
137
B
LEU
138
n
138
LEU
138
B
GLY
139
n
139
GLY
139
B
ASP
140
n
140
ASP
140
B
LEU
141
n
141
LEU
141
B
SER
142
n
142
SER
142
B
GLY
143
n
143
GLY
143
B
GLY
144
n
144
GLY
144
B
GLN
145
n
145
GLN
145
B
VAL
146
n
146
VAL
146
B
LEU
147
n
147
LEU
147
B
LYS
148
n
148
LYS
148
B
LYS
149
n
149
LYS
149
B
ILE
150
n
150
ILE
150
B
ALA
151
n
151
ALA
151
B
GLN
152
n
152
GLN
152
B
LYS
153
n
153
LYS
153
B
ALA
154
n
154
ALA
154
B
LEU
155
n
155
LEU
155
B
ASP
156
n
156
ASP
156
B
LEU
157
n
157
LEU
157
B
PRO
158
n
158
PRO
158
B
SER
159
n
159
SER
159
B
SER
160
n
160
SER
160
B
GLY
161
n
161
GLY
161
B
GLU
162
n
162
GLU
162
B
GLY
163
n
163
GLY
163
B
LEU
164
n
164
LEU
164
B
ALA
165
n
165
ALA
165
B
PHE
166
n
166
PHE
166
B
PHE
167
n
167
PHE
167
B
THR
168
n
168
THR
168
B
PHE
169
n
169
PHE
169
B
PRO
170
n
170
PRO
170
B
ASN
171
n
171
ASN
171
B
ILE
172
n
172
ILE
172
B
ALA
173
n
173
ALA
173
B
SER
174
n
174
SER
174
B
ALA
175
n
175
ALA
175
B
THR
176
n
176
THR
176
B
LYS
177
n
177
LYS
177
B
PHE
178
n
178
PHE
178
B
LYS
179
n
179
LYS
179
B
GLN
180
n
180
GLN
180
B
LEU
181
n
181
LEU
181
B
TYR
182
n
182
TYR
182
B
GLU
183
n
183
GLU
183
B
SER
184
n
184
SER
184
B
ARG
185
n
185
ARG
185
B
MET
186
n
186
MET
186
B
ASN
187
n
187
ASN
187
B
SER
188
n
188
SER
188
B
LEU
189
n
189
LEU
189
B
GLU
190
n
190
GLU
190
B
MET
191
n
191
MET
191
B
THR
192
n
192
THR
192
B
PRO
193
n
193
PRO
193
B
ALA
194
n
194
ALA
194
B
VAL
195
n
195
VAL
195
B
ARG
196
n
196
ARG
196
B
GLN
197
n
197
GLN
197
B
ARG
198
n
198
ARG
198
B
VAL
199
n
199
VAL
199
B
ILE
200
n
200
ILE
200
B
GLU
201
n
201
GLU
201
B
GLU
202
n
202
GLU
202
B
ALA
203
n
203
ALA
203
B
LYS
204
n
204
LYS
204
B
THR
205
n
205
THR
205
B
ALA
206
n
206
ALA
206
B
PHE
207
n
207
PHE
207
B
LEU
208
n
208
LEU
208
B
LEU
209
n
209
LEU
209
B
ASN
210
n
210
ASN
210
B
ILE
211
n
211
ILE
211
B
GLN
212
n
212
GLN
212
B
LEU
213
n
213
LEU
213
B
PHE
214
n
214
PHE
214
B
GLU
215
n
215
GLU
215
B
GLU
216
n
216
GLU
216
B
LEU
217
n
217
LEU
217
B
GLN
218
n
218
GLN
218
B
GLU
219
n
219
GLU
219
B
LEU
220
n
220
LEU
220
B
LEU
221
n
221
LEU
221
B
THR
222
n
222
THR
222
B
HIS
223
n
223
HIS
223
B
n
224
224
B
n
225
225
B
n
226
226
B
n
227
227
B
n
228
228
B
n
229
229
B
n
230
230
B
n
231
231
B
n
232
232
B
n
233
233
B
author_defined_assembly
1
monomeric
author_defined_assembly
1
monomeric
A
HIS
25
A
NE2
HIS
25
1_555
A
HEM
300
C
FE
HEM
1_555
A
HEM
300
C
NA
HEM
1_555
99.6
A
HIS
25
A
NE2
HIS
25
1_555
A
HEM
300
C
FE
HEM
1_555
A
HEM
300
C
NB
HEM
1_555
99.1
A
HEM
300
C
NA
HEM
1_555
A
HEM
300
C
FE
HEM
1_555
A
HEM
300
C
NB
HEM
1_555
90.4
A
HIS
25
A
NE2
HIS
25
1_555
A
HEM
300
C
FE
HEM
1_555
A
HEM
300
C
NC
HEM
1_555
95.6
A
HEM
300
C
NA
HEM
1_555
A
HEM
300
C
FE
HEM
1_555
A
HEM
300
C
NC
HEM
1_555
164.7
A
HEM
300
C
NB
HEM
1_555
A
HEM
300
C
FE
HEM
1_555
A
HEM
300
C
NC
HEM
1_555
88.5
A
HIS
25
A
NE2
HIS
25
1_555
A
HEM
300
C
FE
HEM
1_555
A
HEM
300
C
ND
HEM
1_555
85.2
A
HEM
300
C
NA
HEM
1_555
A
HEM
300
C
FE
HEM
1_555
A
HEM
300
C
ND
HEM
1_555
90.6
A
HEM
300
C
NB
HEM
1_555
A
HEM
300
C
FE
HEM
1_555
A
HEM
300
C
ND
HEM
1_555
175.4
A
HEM
300
C
NC
HEM
1_555
A
HEM
300
C
FE
HEM
1_555
A
HEM
300
C
ND
HEM
1_555
89.3
A
HIS
25
A
NE2
HIS
25
1_555
A
HEM
300
C
FE
HEM
1_555
A
HOH
417
E
O
HOH
1_555
162.5
A
HEM
300
C
NA
HEM
1_555
A
HEM
300
C
FE
HEM
1_555
A
HOH
417
E
O
HOH
1_555
96.7
A
HEM
300
C
NB
HEM
1_555
A
HEM
300
C
FE
HEM
1_555
A
HOH
417
E
O
HOH
1_555
87.2
A
HEM
300
C
NC
HEM
1_555
A
HEM
300
C
FE
HEM
1_555
A
HOH
417
E
O
HOH
1_555
68.1
A
HEM
300
C
ND
HEM
1_555
A
HEM
300
C
FE
HEM
1_555
A
HOH
417
E
O
HOH
1_555
88.2
B
HIS
25
B
NE2
HIS
25
1_555
B
HEM
300
D
FE
HEM
1_555
B
HEM
300
D
NA
HEM
1_555
89.0
B
HIS
25
B
NE2
HIS
25
1_555
B
HEM
300
D
FE
HEM
1_555
B
HEM
300
D
NB
HEM
1_555
102.3
B
HEM
300
D
NA
HEM
1_555
B
HEM
300
D
FE
HEM
1_555
B
HEM
300
D
NB
HEM
1_555
89.9
B
HIS
25
B
NE2
HIS
25
1_555
B
HEM
300
D
FE
HEM
1_555
B
HEM
300
D
NC
HEM
1_555
95.1
B
HEM
300
D
NA
HEM
1_555
B
HEM
300
D
FE
HEM
1_555
B
HEM
300
D
NC
HEM
1_555
175.9
B
HEM
300
D
NB
HEM
1_555
B
HEM
300
D
FE
HEM
1_555
B
HEM
300
D
NC
HEM
1_555
89.4
B
HIS
25
B
NE2
HIS
25
1_555
B
HEM
300
D
FE
HEM
1_555
B
HEM
300
D
ND
HEM
1_555
85.8
B
HEM
300
D
NA
HEM
1_555
B
HEM
300
D
FE
HEM
1_555
B
HEM
300
D
ND
HEM
1_555
89.5
B
HEM
300
D
NB
HEM
1_555
B
HEM
300
D
FE
HEM
1_555
B
HEM
300
D
ND
HEM
1_555
171.8
B
HEM
300
D
NC
HEM
1_555
B
HEM
300
D
FE
HEM
1_555
B
HEM
300
D
ND
HEM
1_555
90.7
B
HIS
25
B
NE2
HIS
25
1_555
B
HEM
300
D
FE
HEM
1_555
B
HOH
388
F
O
HOH
1_555
172.0
B
HEM
300
D
NA
HEM
1_555
B
HEM
300
D
FE
HEM
1_555
B
HOH
388
F
O
HOH
1_555
94.9
B
HEM
300
D
NB
HEM
1_555
B
HEM
300
D
FE
HEM
1_555
B
HOH
388
F
O
HOH
1_555
84.6
B
HEM
300
D
NC
HEM
1_555
B
HEM
300
D
FE
HEM
1_555
B
HOH
388
F
O
HOH
1_555
81.0
B
HEM
300
D
ND
HEM
1_555
B
HEM
300
D
FE
HEM
1_555
B
HOH
388
F
O
HOH
1_555
87.3
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
1
B
CD
GLU
23
B
CD
GLU
23
0
Y
1
B
OE1
GLU
23
B
OE1
GLU
23
0
Y
1
B
OE2
GLU
23
B
OE2
GLU
23
0
Y
1
A
MET
1
A
MET
1
1
Y
1
A
GLU
2
A
GLU
2
1
Y
1
A
ARG
3
A
ARG
3
1
Y
1
A
PRO
4
A
PRO
4
1
Y
1
A
GLN
5
A
GLN
5
1
Y
1
A
PRO
6
A
PRO
6
1
Y
1
A
ASP
7
A
ASP
7
1
Y
1
A
SER
8
A
SER
8
1
Y
1
A
MET
9
A
MET
9
1
Y
1
A
ASP
224
A
ASP
224
1
Y
1
A
THR
225
A
THR
225
1
Y
1
A
LYS
226
A
LYS
226
1
Y
1
A
ASP
227
A
ASP
227
1
Y
1
A
GLN
228
A
GLN
228
1
Y
1
A
SER
229
A
SER
229
1
Y
1
A
PRO
230
A
PRO
230
1
Y
1
A
SER
231
A
SER
231
1
Y
1
A
ARG
232
A
ARG
232
1
Y
1
A
ALA
233
A
ALA
233
1
Y
1
B
MET
1
B
MET
1
1
Y
1
B
GLU
2
B
GLU
2
1
Y
1
B
ARG
3
B
ARG
3
1
Y
1
B
PRO
4
B
PRO
4
1
Y
1
B
GLN
5
B
GLN
5
1
Y
1
B
PRO
6
B
PRO
6
1
Y
1
B
ASP
7
B
ASP
7
1
Y
1
B
SER
8
B
SER
8
1
Y
1
B
MET
9
B
MET
9
1
Y
1
B
ASP
224
B
ASP
224
1
Y
1
B
THR
225
B
THR
225
1
Y
1
B
LYS
226
B
LYS
226
1
Y
1
B
ASP
227
B
ASP
227
1
Y
1
B
GLN
228
B
GLN
228
1
Y
1
B
SER
229
B
SER
229
1
Y
1
B
PRO
230
B
PRO
230
1
Y
1
B
SER
231
B
SER
231
1
Y
1
B
ARG
232
B
ARG
232
1
Y
1
B
ALA
233
B
ALA
233
1
Y
1
A
LYS
39
-77.45
31.96
1
A
PHE
74
-133.82
-35.96
1
A
GLU
125
-147.80
54.13
1
A
ARG
136
-76.58
-72.35
1
A
ASP
156
38.05
50.86
1
A
PRO
158
-60.38
-146.10
1
A
SER
159
-141.00
53.02
1
B
PRO
72
-59.92
-8.90
1
B
PHE
74
-132.25
-41.30
1
B
ARG
136
-64.41
-72.16
1
B
THR
222
-101.54
-78.12
0.23
0.22
2.2
50
24132
1
2
MOLECULAR REPLACEMENT
2.2
50
206
3778
86
0
3486
0.006
2.0
50
1XK2
25306
2.0
2.0
1
99
2.0
2.2
99
data collection
HKL-2000
data scaling
SCALEPACK
refinement
CNS
data reduction
HKL-2000
phasing
CNS
NADPH- and Ascorbate-Supported Heme Oxygenase Reactions are Distinct. Regiospecificity of Heme Cleavage by the R183E Mutant
1
N
N
1
N
N
2
N
N
2
N
N
3
N
N
3
N
N
A
ASP
12
A
ASP
12
HELX_P
A
THR
21
A
THR
21
1
1
10
A
THR
21
A
THR
21
HELX_P
A
ALA
31
A
ALA
31
1
2
11
A
ALA
31
A
ALA
31
HELX_P
A
LYS
39
A
LYS
39
1
3
9
A
THR
43
A
THR
43
HELX_P
A
ASN
68
A
ASN
68
1
4
26
A
PHE
74
A
PHE
74
HELX_P
A
TYR
78
A
TYR
78
5
5
5
A
PHE
79
A
PHE
79
HELX_P
A
HIS
84
A
HIS
84
1
6
6
A
ARG
85
A
ARG
85
HELX_P
A
GLY
98
A
GLY
98
1
7
14
A
ARG
100
A
ARG
100
HELX_P
A
ILE
105
A
ILE
105
1
8
6
A
THR
108
A
THR
108
HELX_P
A
GLU
125
A
GLU
125
1
9
18
A
LEU
128
A
LEU
128
HELX_P
A
GLY
143
A
GLY
143
1
10
16
A
GLY
143
A
GLY
143
HELX_P
A
ASP
156
A
ASP
156
1
11
14
A
LEU
164
A
LEU
164
HELX_P
A
THR
168
A
THR
168
5
12
5
A
SER
174
A
SER
174
HELX_P
A
SER
188
A
SER
188
1
13
15
A
THR
192
A
THR
192
HELX_P
A
LEU
221
A
LEU
221
1
14
30
B
ASP
12
B
ASP
12
HELX_P
B
THR
21
B
THR
21
1
15
10
B
THR
21
B
THR
21
HELX_P
B
ALA
31
B
ALA
31
1
16
11
B
ALA
31
B
ALA
31
HELX_P
B
LYS
39
B
LYS
39
1
17
9
B
THR
43
B
THR
43
HELX_P
B
ASN
68
B
ASN
68
1
18
26
B
PHE
74
B
PHE
74
HELX_P
B
TYR
78
B
TYR
78
5
19
5
B
PHE
79
B
PHE
79
HELX_P
B
HIS
84
B
HIS
84
1
20
6
B
ARG
85
B
ARG
85
HELX_P
B
GLY
98
B
GLY
98
1
21
14
B
ARG
100
B
ARG
100
HELX_P
B
ILE
105
B
ILE
105
1
22
6
B
THR
108
B
THR
108
HELX_P
B
GLU
125
B
GLU
125
1
23
18
B
LEU
128
B
LEU
128
HELX_P
B
ASP
156
B
ASP
156
1
24
29
B
LEU
164
B
LEU
164
HELX_P
B
THR
168
B
THR
168
5
25
5
B
SER
174
B
SER
174
HELX_P
B
SER
188
B
SER
188
1
26
15
B
THR
192
B
THR
192
HELX_P
B
HIS
223
B
HIS
223
1
27
32
metalc
2.088
A
HIS
25
A
NE2
HIS
25
1_555
A
HEM
300
C
FE
HEM
1_555
metalc
1.954
A
HEM
300
C
FE
HEM
1_555
A
HOH
417
E
O
HOH
1_555
metalc
2.125
B
HIS
25
B
NE2
HIS
25
1_555
B
HEM
300
D
FE
HEM
1_555
metalc
2.070
B
HEM
300
D
FE
HEM
1_555
B
HOH
388
F
O
HOH
1_555
OXIDOREDUCTASE
heme, heme degradation, catalytic mechanism, OXIDOREDUCTASE
HMOX1_HUMAN
UNP
1
1
P09601
MERPQPDSMPQDLSEALKEATKEVHTQAENAEFMRNFQKGQVTRDGFKLVMASLYHIYVALEEEIERNKESPVFAPVYFP
EELHRKAALEQDLAFWYGPRWQEVIPYTPAMQRYVKRLHEVGRTEPELLVAHAYTRYLGDLSGGQVLKKIAQKALDLPSS
GEGLAFFTFPNIASATKFKQLYRSRMNSLEMTPAVRQRVIEEAKTAFLLNIQLFEELQELLTHDTKDQSPSRA
1
233
1XK2
1
233
P09601
A
1
1
233
1
233
1XK2
1
233
P09601
B
1
1
233
1
ARG
engineered mutation
GLU
183
1XK2
A
P09601
UNP
183
183
2
ARG
engineered mutation
GLU
183
1XK2
B
P09601
UNP
183
183
BINDING SITE FOR RESIDUE HEM A 300
A
HEM
300
Software
17
BINDING SITE FOR RESIDUE HEM B 300
B
HEM
300
Software
14
A
LYS
18
A
LYS
18
17
1_555
A
HIS
25
A
HIS
25
17
1_555
A
ALA
28
A
ALA
28
17
1_555
A
GLU
29
A
GLU
29
17
1_555
A
MET
34
A
MET
34
17
1_555
A
GLN
38
A
GLN
38
17
1_555
A
TYR
134
A
TYR
134
17
1_555
A
THR
135
A
THR
135
17
1_555
A
ARG
136
A
ARG
136
17
1_555
A
GLY
139
A
GLY
139
17
1_555
A
SER
142
A
SER
142
17
1_555
A
GLY
143
A
GLY
143
17
1_555
A
PHE
207
A
PHE
207
17
1_555
A
ASN
210
A
ASN
210
17
1_555
A
PHE
214
A
PHE
214
17
1_555
A
HOH
306
E
HOH
17
1_555
A
HOH
417
E
HOH
17
1_555
B
LYS
18
B
LYS
18
14
1_555
B
HIS
25
B
HIS
25
14
1_555
B
MET
34
B
MET
34
14
1_555
B
GLN
38
B
GLN
38
14
1_555
B
TYR
134
B
TYR
134
14
1_555
B
THR
135
B
THR
135
14
1_555
B
ARG
136
B
ARG
136
14
1_555
B
GLY
139
B
GLY
139
14
1_555
B
SER
142
B
SER
142
14
1_555
B
PHE
207
B
PHE
207
14
1_555
B
ASN
210
B
ASN
210
14
1_555
B
PHE
214
B
PHE
214
14
1_555
B
HOH
372
F
HOH
14
1_555
B
HOH
388
F
HOH
14
1_555
4
P 1 21 1