0.014408
0.000000
0.005735
0.000000
0.024727
0.000000
0.000000
0.000000
0.027460
0.00000
0.00000
0.00000
Gan, J.-H.
Wu, J.
Wang, Z.-Q.
Wang, Y.-H.
Huang, Z.-X.
Xia, Z.-X.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
4
90.00
111.70
90.00
69.404
40.441
39.196
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
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
Y
296
N
C
Y
297
N
C
Y
298
N
C
Y
299
N
C
Y
300
N
C
Y
301
N
C
N
302
N
O
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
H
N
312
N
H
N
313
N
H
N
314
N
N
N
315
S
C
N
316
N
C
N
317
N
O
N
318
N
C
N
319
N
C
N
320
N
C
N
321
N
O
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
H
N
330
N
H
N
331
N
N
N
332
S
C
N
333
N
C
N
334
N
O
N
335
N
C
N
336
N
O
N
337
N
O
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
R
C
N
350
N
O
N
351
N
C
N
352
N
O
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
H
N
361
N
H
N
362
N
N
N
363
S
C
N
364
N
C
N
365
N
O
N
366
N
C
Y
367
N
C
Y
368
N
C
Y
369
N
C
Y
370
N
N
Y
371
N
C
Y
372
N
C
Y
373
N
C
Y
374
N
C
Y
375
N
C
N
376
N
O
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
H
N
388
N
H
N
389
N
N
N
390
S
C
N
391
N
C
N
392
N
O
N
393
N
C
Y
394
N
C
Y
395
N
C
Y
396
N
C
Y
397
N
C
Y
398
N
C
Y
399
N
C
N
400
N
O
N
401
N
O
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
H
N
412
N
H
N
413
N
N
N
414
S
C
N
415
N
C
N
416
N
O
N
417
N
C
N
418
N
C
N
419
N
C
N
420
N
O
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
430
N
H
N
431
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
Y
298
N
doub
Y
299
N
sing
Y
300
N
sing
N
301
N
sing
Y
302
N
doub
N
303
N
sing
Y
304
N
doub
N
305
N
sing
Y
306
N
sing
N
307
N
sing
N
308
N
sing
N
309
N
sing
N
310
N
sing
N
311
N
sing
N
312
N
sing
N
313
N
sing
N
314
N
sing
N
315
N
sing
N
316
N
doub
N
317
N
sing
N
318
N
sing
N
319
N
sing
N
320
N
sing
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
sing
N
329
N
sing
N
330
N
sing
N
331
N
sing
N
332
N
sing
N
333
N
doub
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
doub
N
347
N
sing
N
348
N
sing
N
349
N
sing
N
350
N
sing
N
351
N
sing
N
352
N
sing
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
doub
N
363
N
sing
N
364
N
sing
N
365
N
sing
N
366
N
sing
Y
367
N
doub
Y
368
N
sing
Y
369
N
sing
N
370
N
sing
Y
371
N
doub
Y
372
N
sing
Y
373
N
sing
N
374
N
sing
Y
375
N
sing
Y
376
N
doub
N
377
N
sing
Y
378
N
doub
N
379
N
sing
Y
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
doub
N
391
N
sing
N
392
N
sing
N
393
N
sing
N
394
N
sing
Y
395
N
doub
Y
396
N
sing
Y
397
N
sing
N
398
N
sing
Y
399
N
doub
N
400
N
sing
Y
401
N
doub
N
402
N
sing
Y
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
sing
N
410
N
sing
N
411
N
sing
N
412
N
sing
N
413
N
sing
N
414
N
doub
N
415
N
sing
N
416
N
sing
N
417
N
sing
N
418
N
sing
N
419
N
sing
N
420
N
sing
N
421
N
sing
N
422
N
sing
N
423
N
sing
N
424
N
sing
N
425
N
sing
DK
Acta Crystallogr.,Sect.D
ABCRE6
0766
0907-4449
58
1298
1306
10.1107/S0907444902010016
12136141
Structures of V45E and V45Y mutants and structure comparison of a variety of cytochrome b5 mutants.
2002
10.2210/pdb1lr6/pdb
pdb_00001lr6
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
293.0
1
IMAGE PLATE
1999-11-10
MARRESEARCH
SINGLE WAVELENGTH
M
x-ray
1
1.5418
1.0
1.5418
SEALED TUBE
9539.423
cytochrome b5
trypsin-solubilized fragment of cytochrome b5
V45Y
1
man
polymer
616.487
PROTOPORPHYRIN IX CONTAINING FE
1
syn
non-polymer
18.015
water
90
nat
water
no
no
AVKYYTLEEIQKHNNSKSTWLILHYKVYDLTKFLEEHPGGEEYLREQAGGDATENFEDVGHSTDARELSKTFIIGELHPD
DR
AVKYYTLEEIQKHNNSKSTWLILHYKVYDLTKFLEEHPGGEEYLREQAGGDATENFEDVGHSTDARELSKTFIIGELHPD
DR
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
cattle
Bos
Escherichia
sample
9913
liver
Bos taurus
562
Escherichia coli
plasmid
pU19
1
2.68
54.07
VAPOR DIFFUSION, HANGING DROP
7.5
PHOSPHATE BUFFER, pH 7.5, VAPOR DIFFUSION, HANGING DROP, temperature 293.0K
293.0
database_2
struct_conn
struct_ref_seq_dif
struct_site
chem_comp_atom
chem_comp_bond
pdbx_initial_refinement_model
repository
Initial release
Version format compliance
Version format compliance
Database references
Derived calculations
Data collection
Refinement description
1
0
2002-09-04
1
1
2008-04-28
1
2
2011-07-13
1
3
2021-11-10
1
4
2023-10-25
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_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_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.ptnr2_label_seq_id
_struct_ref_seq_dif.details
_struct_site.pdbx_auth_asym_id
_struct_site.pdbx_auth_comp_id
_struct_site.pdbx_auth_seq_id
1EHB contains wild-type trypsin-solubilized fragment of cytochrome b5
1ES1 contains crystal structure of the same protein mutant V61H
1LQX contains crystal structure of the same protein mutant V45E
RCSB
Y
PDBJ
2002-05-15
REL
REL
HEM
PROTOPORPHYRIN IX CONTAINING FE
HOH
water
1EHB
PDB ENTRY 1EHB
PDB
experimental model
HEM
201
2
HEM
HEM
201
A
HOH
202
3
HOH
HOH
202
A
HOH
203
3
HOH
HOH
203
A
HOH
204
3
HOH
HOH
204
A
HOH
205
3
HOH
HOH
205
A
HOH
206
3
HOH
HOH
206
A
HOH
207
3
HOH
HOH
207
A
HOH
208
3
HOH
HOH
208
A
HOH
209
3
HOH
HOH
209
A
HOH
210
3
HOH
HOH
210
A
HOH
211
3
HOH
HOH
211
A
HOH
212
3
HOH
HOH
212
A
HOH
213
3
HOH
HOH
213
A
HOH
214
3
HOH
HOH
214
A
HOH
215
3
HOH
HOH
215
A
HOH
216
3
HOH
HOH
216
A
HOH
217
3
HOH
HOH
217
A
HOH
218
3
HOH
HOH
218
A
HOH
219
3
HOH
HOH
219
A
HOH
220
3
HOH
HOH
220
A
HOH
221
3
HOH
HOH
221
A
HOH
222
3
HOH
HOH
222
A
HOH
223
3
HOH
HOH
223
A
HOH
224
3
HOH
HOH
224
A
HOH
225
3
HOH
HOH
225
A
HOH
226
3
HOH
HOH
226
A
HOH
227
3
HOH
HOH
227
A
HOH
228
3
HOH
HOH
228
A
HOH
229
3
HOH
HOH
229
A
HOH
230
3
HOH
HOH
230
A
HOH
231
3
HOH
HOH
231
A
HOH
232
3
HOH
HOH
232
A
HOH
233
3
HOH
HOH
233
A
HOH
234
3
HOH
HOH
234
A
HOH
235
3
HOH
HOH
235
A
HOH
236
3
HOH
HOH
236
A
HOH
237
3
HOH
HOH
237
A
HOH
238
3
HOH
HOH
238
A
HOH
239
3
HOH
HOH
239
A
HOH
240
3
HOH
HOH
240
A
HOH
241
3
HOH
HOH
241
A
HOH
242
3
HOH
HOH
242
A
HOH
243
3
HOH
HOH
243
A
HOH
244
3
HOH
HOH
244
A
HOH
245
3
HOH
HOH
245
A
HOH
246
3
HOH
HOH
246
A
HOH
247
3
HOH
HOH
247
A
HOH
248
3
HOH
HOH
248
A
HOH
249
3
HOH
HOH
249
A
HOH
250
3
HOH
HOH
250
A
HOH
251
3
HOH
HOH
251
A
HOH
252
3
HOH
HOH
252
A
HOH
253
3
HOH
HOH
253
A
HOH
254
3
HOH
HOH
254
A
HOH
255
3
HOH
HOH
255
A
HOH
256
3
HOH
HOH
256
A
HOH
257
3
HOH
HOH
257
A
HOH
258
3
HOH
HOH
258
A
HOH
259
3
HOH
HOH
259
A
HOH
260
3
HOH
HOH
260
A
HOH
261
3
HOH
HOH
261
A
HOH
262
3
HOH
HOH
262
A
HOH
263
3
HOH
HOH
263
A
HOH
264
3
HOH
HOH
264
A
HOH
265
3
HOH
HOH
265
A
HOH
266
3
HOH
HOH
266
A
HOH
267
3
HOH
HOH
267
A
HOH
268
3
HOH
HOH
268
A
HOH
269
3
HOH
HOH
269
A
HOH
270
3
HOH
HOH
270
A
HOH
271
3
HOH
HOH
271
A
HOH
272
3
HOH
HOH
272
A
HOH
273
3
HOH
HOH
273
A
HOH
274
3
HOH
HOH
274
A
HOH
275
3
HOH
HOH
275
A
HOH
276
3
HOH
HOH
276
A
HOH
277
3
HOH
HOH
277
A
HOH
278
3
HOH
HOH
278
A
HOH
279
3
HOH
HOH
279
A
HOH
280
3
HOH
HOH
280
A
HOH
281
3
HOH
HOH
281
A
HOH
282
3
HOH
HOH
282
A
HOH
283
3
HOH
HOH
283
A
HOH
284
3
HOH
HOH
284
A
HOH
285
3
HOH
HOH
285
A
HOH
286
3
HOH
HOH
286
A
HOH
287
3
HOH
HOH
287
A
HOH
288
3
HOH
HOH
288
A
HOH
289
3
HOH
HOH
289
A
HOH
290
3
HOH
HOH
290
A
HOH
291
3
HOH
HOH
291
A
ALA
3
n
1
ALA
3
A
VAL
4
n
2
VAL
4
A
LYS
5
n
3
LYS
5
A
TYR
6
n
4
TYR
6
A
TYR
7
n
5
TYR
7
A
THR
8
n
6
THR
8
A
LEU
9
n
7
LEU
9
A
GLU
10
n
8
GLU
10
A
GLU
11
n
9
GLU
11
A
ILE
12
n
10
ILE
12
A
GLN
13
n
11
GLN
13
A
LYS
14
n
12
LYS
14
A
HIS
15
n
13
HIS
15
A
ASN
16
n
14
ASN
16
A
ASN
17
n
15
ASN
17
A
SER
18
n
16
SER
18
A
LYS
19
n
17
LYS
19
A
SER
20
n
18
SER
20
A
THR
21
n
19
THR
21
A
TRP
22
n
20
TRP
22
A
LEU
23
n
21
LEU
23
A
ILE
24
n
22
ILE
24
A
LEU
25
n
23
LEU
25
A
HIS
26
n
24
HIS
26
A
TYR
27
n
25
TYR
27
A
LYS
28
n
26
LYS
28
A
VAL
29
n
27
VAL
29
A
TYR
30
n
28
TYR
30
A
ASP
31
n
29
ASP
31
A
LEU
32
n
30
LEU
32
A
THR
33
n
31
THR
33
A
LYS
34
n
32
LYS
34
A
PHE
35
n
33
PHE
35
A
LEU
36
n
34
LEU
36
A
GLU
37
n
35
GLU
37
A
GLU
38
n
36
GLU
38
A
HIS
39
n
37
HIS
39
A
PRO
40
n
38
PRO
40
A
GLY
41
n
39
GLY
41
A
GLY
42
n
40
GLY
42
A
GLU
43
n
41
GLU
43
A
GLU
44
n
42
GLU
44
A
TYR
45
n
43
TYR
45
A
LEU
46
n
44
LEU
46
A
ARG
47
n
45
ARG
47
A
GLU
48
n
46
GLU
48
A
GLN
49
n
47
GLN
49
A
ALA
50
n
48
ALA
50
A
GLY
51
n
49
GLY
51
A
GLY
52
n
50
GLY
52
A
ASP
53
n
51
ASP
53
A
ALA
54
n
52
ALA
54
A
THR
55
n
53
THR
55
A
GLU
56
n
54
GLU
56
A
ASN
57
n
55
ASN
57
A
PHE
58
n
56
PHE
58
A
GLU
59
n
57
GLU
59
A
ASP
60
n
58
ASP
60
A
VAL
61
n
59
VAL
61
A
GLY
62
n
60
GLY
62
A
HIS
63
n
61
HIS
63
A
SER
64
n
62
SER
64
A
THR
65
n
63
THR
65
A
ASP
66
n
64
ASP
66
A
ALA
67
n
65
ALA
67
A
ARG
68
n
66
ARG
68
A
GLU
69
n
67
GLU
69
A
LEU
70
n
68
LEU
70
A
SER
71
n
69
SER
71
A
LYS
72
n
70
LYS
72
A
THR
73
n
71
THR
73
A
PHE
74
n
72
PHE
74
A
ILE
75
n
73
ILE
75
A
ILE
76
n
74
ILE
76
A
GLY
77
n
75
GLY
77
A
GLU
78
n
76
GLU
78
A
LEU
79
n
77
LEU
79
A
HIS
80
n
78
HIS
80
A
PRO
81
n
79
PRO
81
A
ASP
82
n
80
ASP
82
A
ASP
83
n
81
ASP
83
A
ARG
84
n
82
ARG
84
A
author_defined_assembly
1
monomeric
A
HIS
39
A
NE2
HIS
37
1_555
A
HEM
201
B
FE
HEM
1_555
A
HEM
201
B
NA
HEM
1_555
91.3
A
HIS
39
A
NE2
HIS
37
1_555
A
HEM
201
B
FE
HEM
1_555
A
HEM
201
B
NB
HEM
1_555
95.0
A
HEM
201
B
NA
HEM
1_555
A
HEM
201
B
FE
HEM
1_555
A
HEM
201
B
NB
HEM
1_555
88.2
A
HIS
39
A
NE2
HIS
37
1_555
A
HEM
201
B
FE
HEM
1_555
A
HEM
201
B
NC
HEM
1_555
89.5
A
HEM
201
B
NA
HEM
1_555
A
HEM
201
B
FE
HEM
1_555
A
HEM
201
B
NC
HEM
1_555
178.9
A
HEM
201
B
NB
HEM
1_555
A
HEM
201
B
FE
HEM
1_555
A
HEM
201
B
NC
HEM
1_555
91.0
A
HIS
39
A
NE2
HIS
37
1_555
A
HEM
201
B
FE
HEM
1_555
A
HEM
201
B
ND
HEM
1_555
86.0
A
HEM
201
B
NA
HEM
1_555
A
HEM
201
B
FE
HEM
1_555
A
HEM
201
B
ND
HEM
1_555
92.2
A
HEM
201
B
NB
HEM
1_555
A
HEM
201
B
FE
HEM
1_555
A
HEM
201
B
ND
HEM
1_555
178.9
A
HEM
201
B
NC
HEM
1_555
A
HEM
201
B
FE
HEM
1_555
A
HEM
201
B
ND
HEM
1_555
88.5
A
HIS
39
A
NE2
HIS
37
1_555
A
HEM
201
B
FE
HEM
1_555
A
HIS
63
A
NE2
HIS
61
1_555
175.3
A
HEM
201
B
NA
HEM
1_555
A
HEM
201
B
FE
HEM
1_555
A
HIS
63
A
NE2
HIS
61
1_555
91.3
A
HEM
201
B
NB
HEM
1_555
A
HEM
201
B
FE
HEM
1_555
A
HIS
63
A
NE2
HIS
61
1_555
88.9
A
HEM
201
B
NC
HEM
1_555
A
HEM
201
B
FE
HEM
1_555
A
HIS
63
A
NE2
HIS
61
1_555
87.9
A
HEM
201
B
ND
HEM
1_555
A
HEM
201
B
FE
HEM
1_555
A
HIS
63
A
NE2
HIS
61
1_555
90.1
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
A
N
TYR
7
A
N
TYR
5
A
O
GLU
78
A
O
GLU
76
A
O
GLY
77
A
O
GLY
75
A
N
VAL
29
A
N
VAL
27
A
N
TYR
30
A
N
TYR
28
A
O
LEU
23
A
O
LEU
21
A
N
ILE
24
A
N
ILE
22
A
O
GLY
52
A
O
GLY
50
1
A
ASN
16
-146.85
50.99
PROTEIN_REP.PARAM
PROTEIN.TOP
WATER_REP.PARAM
WATER.TOP
29.1
11.38
0.00
2.22
-5.80
0.00
-5.58
0.2360000
0.008
0.1910000
0.1960000
0.1910000
1.90
22.82
782
7336
10.7
90.6
RANDOM
1
RESTRAINED
THROUGHOUT
0.0
0.0
FOURIER SYNTHESIS
PDB ENTRY 1EHB
FLAT MODEL
66.6757
0.402579
0.27
0.19
1.90
22.82
90
808
43
0
675
0.008
1.2
22.3
0.99
0.2740000
0.035
0.2890000
1.97
62
513
10
10.8
71.7
16.0
1.90
22.82
1LR6
7563
0.0620000
1
3.1
93.5
0.1940000
1.9
1.94
6.1
1
2.3
76.3
refinement
CNS
data reduction
DENZO
data scaling
SCALEPACK
phasing
CNS
Crystal structure of V45Y mutant of cytochrome b5
1
N
N
2
N
N
3
N
N
A
THR
8
A
THR
6
HELX_P
A
HIS
15
A
HIS
13
1
1
8
A
LEU
32
A
LEU
30
HELX_P
A
HIS
39
A
HIS
37
1
2
8
A
GLU
43
A
GLU
41
HELX_P
A
ALA
50
A
ALA
48
1
3
8
A
ALA
54
A
ALA
52
HELX_P
A
VAL
61
A
VAL
59
1
4
8
A
SER
64
A
SER
62
HELX_P
A
ILE
75
A
ILE
73
1
5
12
A
HIS
80
A
HIS
78
HELX_P
A
ARG
84
A
ARG
82
5
6
5
metalc
2.118
A
HIS
39
A
NE2
HIS
37
1_555
A
HEM
201
B
FE
HEM
1_555
metalc
2.092
A
HIS
63
A
NE2
HIS
61
1_555
A
HEM
201
B
FE
HEM
1_555
ELECTRON TRANSPORT
CYTOCHROME B5, TRYPSIN-SOLUBILIZED FRAGMENT, MUTANT V45Y, ELECTRON TRANSPORT
CYB5_BOVIN
UNP
1
7
P00171
AVKYYTLEEIQKHNNSKSTWLILHYKVYDLTKFLEEHPGGEEVLREQAGGDATENFEDVGHSTDARELSKTFIIGELHPD
DR
7
88
1LR6
3
84
P00171
A
1
1
82
1
VAL
engineered mutation
TYR
45
1LR6
A
P00171
UNP
49
43
5
parallel
anti-parallel
anti-parallel
anti-parallel
A
LYS
5
A
LYS
3
A
TYR
7
A
TYR
5
A
PHE
74
A
PHE
72
A
HIS
80
A
HIS
78
A
TYR
27
A
TYR
25
A
LEU
32
A
LEU
30
A
THR
21
A
THR
19
A
LEU
25
A
LEU
23
A
GLY
51
A
GLY
49
A
ALA
54
A
ALA
52
BINDING SITE FOR RESIDUE HEM A 201
A
HEM
201
Software
15
A
LEU
32
A
LEU
30
15
1_555
A
PHE
35
A
PHE
33
15
1_555
A
HIS
39
A
HIS
37
15
1_555
A
PRO
40
A
PRO
38
15
1_555
A
GLY
41
A
GLY
39
15
1_555
A
TYR
45
A
TYR
43
15
1_555
A
LEU
46
A
LEU
44
15
1_555
A
GLN
49
A
GLN
47
15
1_555
A
ASN
57
A
ASN
55
15
1_555
A
PHE
58
A
PHE
56
15
1_555
A
HIS
63
A
HIS
61
15
1_555
A
SER
64
A
SER
62
15
1_555
A
ALA
67
A
ALA
65
15
1_555
A
SER
71
A
SER
69
15
1_555
A
HOH
265
C
HOH
15
1_555
5
C 1 2 1