0.018071
0.010433
0.000000
0.000000
0.020867
0.000000
0.000000
0.000000
0.006256
0.00000
0.00000
0.00000
Bilder, P.W.
Ding, H.
Newcomer, M.E.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
12
90.00
90.00
120.00
55.337
55.337
159.835
C3 H7 N O2
89.093
y
ALANINE
L-peptide linking
C6 H15 N4 O2 1
175.209
y
ARGININE
L-peptide linking
C4 H8 N2 O3
132.118
y
ASPARAGINE
L-peptide linking
C4 H7 N O4
133.103
y
ASPARTIC ACID
L-peptide linking
C3 H7 N O2 S
121.158
y
CYSTEINE
L-peptide linking
C5 H10 N2 O3
146.144
y
GLUTAMINE
L-peptide linking
C5 H9 N O4
147.129
y
GLUTAMIC ACID
L-peptide linking
C2 H5 N O2
75.067
y
GLYCINE
peptide linking
Hg 2
200.590
MERCURY (II) ION
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
C9 H11 N O3
181.189
y
TYROSINE
L-peptide linking
C5 H11 N O2
117.146
y
VALINE
L-peptide linking
N
1
N
N
N
2
S
C
N
3
N
C
N
4
N
O
N
5
N
C
N
6
N
O
N
7
N
H
N
8
N
H
N
9
N
H
N
10
N
H
N
11
N
H
N
12
N
H
N
13
N
H
N
14
N
N
N
15
S
C
N
16
N
C
N
17
N
O
N
18
N
C
N
19
N
C
N
20
N
C
N
21
N
N
N
22
N
C
N
23
N
N
N
24
N
N
N
25
N
O
N
26
N
H
N
27
N
H
N
28
N
H
N
29
N
H
N
30
N
H
N
31
N
H
N
32
N
H
N
33
N
H
N
34
N
H
N
35
N
H
N
36
N
H
N
37
N
H
N
38
N
H
N
39
N
H
N
40
N
H
N
41
N
N
N
42
S
C
N
43
N
C
N
44
N
O
N
45
N
C
N
46
N
C
N
47
N
O
N
48
N
N
N
49
N
O
N
50
N
H
N
51
N
H
N
52
N
H
N
53
N
H
N
54
N
H
N
55
N
H
N
56
N
H
N
57
N
H
N
58
N
N
N
59
S
C
N
60
N
C
N
61
N
O
N
62
N
C
N
63
N
C
N
64
N
O
N
65
N
O
N
66
N
O
N
67
N
H
N
68
N
H
N
69
N
H
N
70
N
H
N
71
N
H
N
72
N
H
N
73
N
H
N
74
N
N
N
75
R
C
N
76
N
C
N
77
N
O
N
78
N
C
N
79
N
S
N
80
N
O
N
81
N
H
N
82
N
H
N
83
N
H
N
84
N
H
N
85
N
H
N
86
N
H
N
87
N
H
N
88
N
N
N
89
S
C
N
90
N
C
N
91
N
O
N
92
N
C
N
93
N
C
N
94
N
C
N
95
N
O
N
96
N
N
N
97
N
O
N
98
N
H
N
99
N
H
N
100
N
H
N
101
N
H
N
102
N
H
N
103
N
H
N
104
N
H
N
105
N
H
N
106
N
H
N
107
N
H
N
108
N
N
N
109
S
C
N
110
N
C
N
111
N
O
N
112
N
C
N
113
N
C
N
114
N
C
N
115
N
O
N
116
N
O
N
117
N
O
N
118
N
H
N
119
N
H
N
120
N
H
N
121
N
H
N
122
N
H
N
123
N
H
N
124
N
H
N
125
N
H
N
126
N
H
N
127
N
N
N
128
N
C
N
129
N
C
N
130
N
O
N
131
N
O
N
132
N
H
N
133
N
H
N
134
N
H
N
135
N
H
N
136
N
H
N
137
N
HG
N
138
N
N
N
139
S
C
N
140
N
C
N
141
N
O
N
142
N
C
Y
143
N
C
Y
144
N
N
Y
145
N
C
Y
146
N
C
Y
147
N
N
N
148
N
O
N
149
N
H
N
150
N
H
N
151
N
H
N
152
N
H
N
153
N
H
N
154
N
H
N
155
N
H
N
156
N
H
N
157
N
H
N
158
N
H
N
159
N
O
N
160
N
H
N
161
N
H
N
162
N
N
N
163
S
C
N
164
N
C
N
165
N
O
N
166
S
C
N
167
N
C
N
168
N
C
N
169
N
C
N
170
N
O
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
N
N
185
S
C
N
186
N
C
N
187
N
O
N
188
N
C
N
189
N
C
N
190
N
C
N
191
N
C
N
192
N
O
N
193
N
H
N
194
N
H
N
195
N
H
N
196
N
H
N
197
N
H
N
198
N
H
N
199
N
H
N
200
N
H
N
201
N
H
N
202
N
H
N
203
N
H
N
204
N
H
N
205
N
H
N
206
N
N
N
207
S
C
N
208
N
C
N
209
N
O
N
210
N
C
N
211
N
C
N
212
N
C
N
213
N
C
N
214
N
N
N
215
N
O
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
N
N
232
S
C
N
233
N
C
N
234
N
O
N
235
N
C
N
236
N
C
N
237
N
S
N
238
N
C
N
239
N
O
N
240
N
H
N
241
N
H
N
242
N
H
N
243
N
H
N
244
N
H
N
245
N
H
N
246
N
H
N
247
N
H
N
248
N
H
N
249
N
H
N
250
N
H
N
251
N
N
N
252
S
C
N
253
N
C
N
254
N
O
N
255
N
C
Y
256
N
C
Y
257
N
C
Y
258
N
C
Y
259
N
C
Y
260
N
C
Y
261
N
C
N
262
N
O
N
263
N
H
N
264
N
H
N
265
N
H
N
266
N
H
N
267
N
H
N
268
N
H
N
269
N
H
N
270
N
H
N
271
N
H
N
272
N
H
N
273
N
H
N
274
N
N
N
275
S
C
N
276
N
C
N
277
N
O
N
278
N
C
N
279
N
C
N
280
N
C
N
281
N
O
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
O
N
297
N
O
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
N
N
306
S
C
N
307
N
C
N
308
N
O
N
309
R
C
N
310
N
O
N
311
N
C
N
312
N
O
N
313
N
H
N
314
N
H
N
315
N
H
N
316
N
H
N
317
N
H
N
318
N
H
N
319
N
H
N
320
N
H
N
321
N
H
N
322
N
N
N
323
S
C
N
324
N
C
N
325
N
O
N
326
N
C
Y
327
N
C
Y
328
N
C
Y
329
N
C
Y
330
N
C
Y
331
N
C
Y
332
N
C
N
333
N
O
N
334
N
O
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
H
N
346
N
N
N
347
S
C
N
348
N
C
N
349
N
O
N
350
N
C
N
351
N
C
N
352
N
C
N
353
N
O
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
H
N
363
N
H
N
364
N
H
N
1
N
sing
N
2
N
sing
N
3
N
sing
N
4
N
sing
N
5
N
sing
N
6
N
sing
N
7
N
doub
N
8
N
sing
N
9
N
sing
N
10
N
sing
N
11
N
sing
N
12
N
sing
N
13
N
sing
N
14
N
sing
N
15
N
sing
N
16
N
sing
N
17
N
sing
N
18
N
sing
N
19
N
doub
N
20
N
sing
N
21
N
sing
N
22
N
sing
N
23
N
sing
N
24
N
sing
N
25
N
sing
N
26
N
sing
N
27
N
sing
N
28
N
sing
N
29
N
sing
N
30
N
sing
N
31
N
sing
N
32
N
sing
N
33
N
doub
N
34
N
sing
N
35
N
sing
N
36
N
sing
N
37
N
sing
N
38
N
sing
N
39
N
sing
N
40
N
sing
N
41
N
sing
N
42
N
sing
N
43
N
sing
N
44
N
sing
N
45
N
doub
N
46
N
sing
N
47
N
sing
N
48
N
sing
N
49
N
sing
N
50
N
doub
N
51
N
sing
N
52
N
sing
N
53
N
sing
N
54
N
sing
N
55
N
sing
N
56
N
sing
N
57
N
sing
N
58
N
sing
N
59
N
sing
N
60
N
sing
N
61
N
doub
N
62
N
sing
N
63
N
sing
N
64
N
sing
N
65
N
sing
N
66
N
doub
N
67
N
sing
N
68
N
sing
N
69
N
sing
N
70
N
sing
N
71
N
sing
N
72
N
sing
N
73
N
sing
N
74
N
sing
N
75
N
sing
N
76
N
doub
N
77
N
sing
N
78
N
sing
N
79
N
sing
N
80
N
sing
N
81
N
sing
N
82
N
sing
N
83
N
sing
N
84
N
sing
N
85
N
sing
N
86
N
sing
N
87
N
sing
N
88
N
sing
N
89
N
doub
N
90
N
sing
N
91
N
sing
N
92
N
sing
N
93
N
sing
N
94
N
sing
N
95
N
sing
N
96
N
sing
N
97
N
doub
N
98
N
sing
N
99
N
sing
N
100
N
sing
N
101
N
sing
N
102
N
sing
N
103
N
sing
N
104
N
sing
N
105
N
sing
N
106
N
sing
N
107
N
sing
N
108
N
doub
N
109
N
sing
N
110
N
sing
N
111
N
sing
N
112
N
sing
N
113
N
sing
N
114
N
sing
N
115
N
sing
N
116
N
doub
N
117
N
sing
N
118
N
sing
N
119
N
sing
N
120
N
sing
N
121
N
sing
N
122
N
sing
N
123
N
sing
N
124
N
sing
N
125
N
sing
N
126
N
doub
N
127
N
sing
N
128
N
sing
N
129
N
sing
N
130
N
sing
N
131
N
sing
N
132
N
sing
N
133
N
sing
N
134
N
sing
N
135
N
doub
N
136
N
sing
N
137
N
sing
N
138
N
sing
N
139
N
sing
Y
140
N
sing
Y
141
N
doub
Y
142
N
doub
N
143
N
sing
Y
144
N
sing
N
145
N
sing
Y
146
N
sing
N
147
N
sing
N
148
N
sing
N
149
N
sing
N
150
N
sing
N
151
N
sing
N
152
N
sing
N
153
N
sing
N
154
N
sing
N
155
N
sing
N
156
N
sing
N
157
N
sing
N
158
N
doub
N
159
N
sing
N
160
N
sing
N
161
N
sing
N
162
N
sing
N
163
N
sing
N
164
N
sing
N
165
N
sing
N
166
N
sing
N
167
N
sing
N
168
N
sing
N
169
N
sing
N
170
N
sing
N
171
N
sing
N
172
N
sing
N
173
N
sing
N
174
N
sing
N
175
N
sing
N
176
N
sing
N
177
N
sing
N
178
N
sing
N
179
N
doub
N
180
N
sing
N
181
N
sing
N
182
N
sing
N
183
N
sing
N
184
N
sing
N
185
N
sing
N
186
N
sing
N
187
N
sing
N
188
N
sing
N
189
N
sing
N
190
N
sing
N
191
N
sing
N
192
N
sing
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
doub
N
201
N
sing
N
202
N
sing
N
203
N
sing
N
204
N
sing
N
205
N
sing
N
206
N
sing
N
207
N
sing
N
208
N
sing
N
209
N
sing
N
210
N
sing
N
211
N
sing
N
212
N
sing
N
213
N
sing
N
214
N
sing
N
215
N
sing
N
216
N
sing
N
217
N
sing
N
218
N
sing
N
219
N
sing
N
220
N
sing
N
221
N
sing
N
222
N
sing
N
223
N
sing
N
224
N
doub
N
225
N
sing
N
226
N
sing
N
227
N
sing
N
228
N
sing
N
229
N
sing
N
230
N
sing
N
231
N
sing
N
232
N
sing
N
233
N
sing
N
234
N
sing
N
235
N
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
doub
N
244
N
sing
N
245
N
sing
N
246
N
sing
N
247
N
sing
Y
248
N
doub
Y
249
N
sing
Y
250
N
sing
N
251
N
sing
Y
252
N
doub
N
253
N
sing
Y
254
N
doub
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
doub
N
267
N
sing
N
268
N
sing
N
269
N
sing
N
270
N
sing
N
271
N
sing
N
272
N
sing
N
273
N
sing
N
274
N
sing
N
275
N
sing
N
276
N
sing
N
277
N
sing
N
278
N
sing
N
279
N
sing
N
280
N
sing
N
281
N
sing
N
282
N
sing
N
283
N
doub
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
sing
N
294
N
sing
N
295
N
sing
N
296
N
doub
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
sing
N
336
N
doub
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
US
Biochemistry
BICHAW
0033
0006-2960
43
133
139
14705938
Crystal structure of the ancient, Fe-S scaffold IscA reveals a novel protein fold.
2004
10.2210/pdb1r94/pdb
pdb_00001r94
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
100.0
1
IMAGE PLATE
MARRESEARCH
OSMIC MIRRORS
SINGLE WAVELENGTH
M
x-ray
1
1.5418
1.0
1.5418
ROTATING ANODE
ENRAF-NONIUS FR591
12843.438
Protein yfhF
2
man
polymer
200.590
MERCURY (II) ION
2
syn
non-polymer
18.015
water
85
nat
water
no
no
MSITLSDSAAARVNTFLANRGKGFGLRLGVRTSGCSGMAYVLEFVDEPTPEDIVFEDKGVKVVVDGKSLQFLDGTQLDFV
KEGLNEGFKFTNPNVKDECGCGESFKLAAALDHHHHHH
MSITLSDSAAARVNTFLANRGKGFGLRLGVRTSGCSGMAYVLEFVDEPTPEDIVFEDKGVKVVVDGKSLQFLDGTQLDFV
KEGLNEGFKFTNPNVKDECGCGESFKLAAALDHHHHHH
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
Escherichia
Escherichia
sample
YFHF, B2528, C3053, Z3795, ECS3394, SF2575, S2747
562
Escherichia coli
562
Escherichia coli
1
2.75
55.27
8.00
dibasic ammonium phosphate, imidazole, pH 8.0, VAPOR DIFFUSION, HANGING DROP, temperature 298K, pH 8.00
298
software
chem_comp_atom
chem_comp_bond
database_2
struct_conn
struct_ncs_dom_lim
struct_ref_seq_dif
struct_site
repository
Initial release
Version format compliance
Version format compliance
Refinement description
Data collection
Database references
Derived calculations
Refinement description
1
0
2003-12-23
1
1
2008-04-29
1
2
2011-07-13
1
3
2017-10-11
1
4
2024-02-14
_software.classification
_software.name
_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.ptnr1_symmetry
_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_conn.ptnr2_symmetry
_struct_ncs_dom_lim.beg_auth_comp_id
_struct_ncs_dom_lim.end_auth_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
Crystal Structure of IscA (NATIVE)
RCSB
Y
RCSB
2003-10-28
REL
HG
MERCURY (II) ION
HOH
water
HG
1
2
HG
HG
119
A
HG
1
2
HG
HG
119
B
HOH
1
3
HOH
HOH
120
A
HOH
2
3
HOH
HOH
121
A
HOH
3
3
HOH
HOH
122
A
HOH
7
3
HOH
HOH
123
A
HOH
8
3
HOH
HOH
124
A
HOH
10
3
HOH
HOH
125
A
HOH
13
3
HOH
HOH
126
A
HOH
16
3
HOH
HOH
127
A
HOH
18
3
HOH
HOH
128
A
HOH
19
3
HOH
HOH
129
A
HOH
21
3
HOH
HOH
130
A
HOH
24
3
HOH
HOH
131
A
HOH
25
3
HOH
HOH
132
A
HOH
26
3
HOH
HOH
133
A
HOH
29
3
HOH
HOH
134
A
HOH
30
3
HOH
HOH
135
A
HOH
31
3
HOH
HOH
136
A
HOH
33
3
HOH
HOH
137
A
HOH
34
3
HOH
HOH
138
A
HOH
36
3
HOH
HOH
139
A
HOH
37
3
HOH
HOH
140
A
HOH
39
3
HOH
HOH
141
A
HOH
40
3
HOH
HOH
142
A
HOH
44
3
HOH
HOH
143
A
HOH
45
3
HOH
HOH
144
A
HOH
48
3
HOH
HOH
145
A
HOH
49
3
HOH
HOH
146
A
HOH
51
3
HOH
HOH
147
A
HOH
52
3
HOH
HOH
148
A
HOH
53
3
HOH
HOH
149
A
HOH
55
3
HOH
HOH
150
A
HOH
58
3
HOH
HOH
151
A
HOH
59
3
HOH
HOH
152
A
HOH
60
3
HOH
HOH
153
A
HOH
65
3
HOH
HOH
154
A
HOH
69
3
HOH
HOH
155
A
HOH
70
3
HOH
HOH
156
A
HOH
71
3
HOH
HOH
157
A
HOH
74
3
HOH
HOH
158
A
HOH
75
3
HOH
HOH
159
A
HOH
76
3
HOH
HOH
160
A
HOH
79
3
HOH
HOH
161
A
HOH
80
3
HOH
HOH
162
A
HOH
4
3
HOH
HOH
120
B
HOH
5
3
HOH
HOH
121
B
HOH
6
3
HOH
HOH
122
B
HOH
9
3
HOH
HOH
123
B
HOH
11
3
HOH
HOH
124
B
HOH
12
3
HOH
HOH
125
B
HOH
14
3
HOH
HOH
126
B
HOH
15
3
HOH
HOH
127
B
HOH
17
3
HOH
HOH
128
B
HOH
20
3
HOH
HOH
129
B
HOH
22
3
HOH
HOH
130
B
HOH
23
3
HOH
HOH
131
B
HOH
27
3
HOH
HOH
132
B
HOH
28
3
HOH
HOH
133
B
HOH
32
3
HOH
HOH
134
B
HOH
35
3
HOH
HOH
135
B
HOH
38
3
HOH
HOH
136
B
HOH
41
3
HOH
HOH
137
B
HOH
42
3
HOH
HOH
138
B
HOH
43
3
HOH
HOH
139
B
HOH
46
3
HOH
HOH
140
B
HOH
47
3
HOH
HOH
141
B
HOH
50
3
HOH
HOH
142
B
HOH
54
3
HOH
HOH
143
B
HOH
56
3
HOH
HOH
144
B
HOH
57
3
HOH
HOH
145
B
HOH
61
3
HOH
HOH
146
B
HOH
62
3
HOH
HOH
147
B
HOH
63
3
HOH
HOH
148
B
HOH
64
3
HOH
HOH
149
B
HOH
66
3
HOH
HOH
150
B
HOH
67
3
HOH
HOH
151
B
HOH
68
3
HOH
HOH
152
B
HOH
72
3
HOH
HOH
153
B
HOH
73
3
HOH
HOH
154
B
HOH
77
3
HOH
HOH
155
B
HOH
78
3
HOH
HOH
156
B
HOH
81
3
HOH
HOH
157
B
HOH
82
3
HOH
HOH
158
B
HOH
83
3
HOH
HOH
159
B
HOH
84
3
HOH
HOH
160
B
HOH
85
3
HOH
HOH
161
B
ALA
1
n
1
MET
1
A
SER
2
n
2
SER
2
A
ILE
3
n
3
ILE
3
A
THR
4
n
4
THR
4
A
LEU
5
n
5
LEU
5
A
SER
6
n
6
SER
6
A
ASP
7
n
7
ASP
7
A
SER
8
n
8
SER
8
A
ALA
9
n
9
ALA
9
A
ALA
10
n
10
ALA
10
A
ALA
11
n
11
ALA
11
A
ARG
12
n
12
ARG
12
A
VAL
13
n
13
VAL
13
A
ASN
14
n
14
ASN
14
A
THR
15
n
15
THR
15
A
PHE
16
n
16
PHE
16
A
LEU
17
n
17
LEU
17
A
ALA
18
n
18
ALA
18
A
ASN
19
n
19
ASN
19
A
ARG
20
n
20
ARG
20
A
GLY
21
n
21
GLY
21
A
LYS
22
n
22
LYS
22
A
GLY
23
n
23
GLY
23
A
PHE
24
n
24
PHE
24
A
GLY
25
n
25
GLY
25
A
LEU
26
n
26
LEU
26
A
ARG
27
n
27
ARG
27
A
LEU
28
n
28
LEU
28
A
GLY
29
n
29
GLY
29
A
VAL
30
n
30
VAL
30
A
ARG
31
n
31
ARG
31
A
THR
32
n
32
THR
32
A
SER
33
n
33
SER
33
A
GLY
34
n
34
GLY
34
A
CYS
35
n
35
CYS
35
A
SER
36
n
36
SER
36
A
GLY
37
n
37
GLY
37
A
MET
38
n
38
MET
38
A
ALA
39
n
39
ALA
39
A
TYR
40
n
40
TYR
40
A
VAL
41
n
41
VAL
41
A
LEU
42
n
42
LEU
42
A
GLU
43
n
43
GLU
43
A
PHE
44
n
44
PHE
44
A
VAL
45
n
45
VAL
45
A
ASP
46
n
46
ASP
46
A
GLU
47
n
47
GLU
47
A
PRO
48
n
48
PRO
48
A
THR
49
n
49
THR
49
A
PRO
50
n
50
PRO
50
A
GLU
51
n
51
GLU
51
A
ASP
52
n
52
ASP
52
A
ILE
53
n
53
ILE
53
A
VAL
54
n
54
VAL
54
A
PHE
55
n
55
PHE
55
A
GLU
56
n
56
GLU
56
A
ASP
57
n
57
ASP
57
A
LYS
58
n
58
LYS
58
A
GLY
59
n
59
GLY
59
A
VAL
60
n
60
VAL
60
A
LYS
61
n
61
LYS
61
A
VAL
62
n
62
VAL
62
A
VAL
63
n
63
VAL
63
A
VAL
64
n
64
VAL
64
A
ASP
65
n
65
ASP
65
A
GLY
66
n
66
GLY
66
A
LYS
67
n
67
LYS
67
A
SER
68
n
68
SER
68
A
LEU
69
n
69
LEU
69
A
GLN
70
n
70
GLN
70
A
PHE
71
n
71
PHE
71
A
LEU
72
n
72
LEU
72
A
ASP
73
n
73
ASP
73
A
GLY
74
n
74
GLY
74
A
THR
75
n
75
THR
75
A
GLN
76
n
76
GLN
76
A
LEU
77
n
77
LEU
77
A
ASP
78
n
78
ASP
78
A
PHE
79
n
79
PHE
79
A
VAL
80
n
80
VAL
80
A
LYS
81
n
81
LYS
81
A
GLU
82
n
82
GLU
82
A
GLY
83
n
83
GLY
83
A
LEU
84
n
84
LEU
84
A
ASN
85
n
85
ASN
85
A
GLU
86
n
86
GLU
86
A
GLY
87
n
87
GLY
87
A
PHE
88
n
88
PHE
88
A
LYS
89
n
89
LYS
89
A
PHE
90
n
90
PHE
90
A
THR
91
n
91
THR
91
A
ASN
92
n
92
ASN
92
A
PRO
93
n
93
PRO
93
A
ASN
94
n
94
ASN
94
A
VAL
95
n
95
VAL
95
A
LYS
96
n
96
LYS
96
A
ASP
97
n
97
ASP
97
A
n
98
98
A
n
99
99
A
n
100
100
A
n
101
101
A
n
102
102
A
n
103
103
A
n
104
104
A
n
105
105
A
n
106
106
A
n
107
107
A
n
108
108
A
n
109
109
A
n
110
110
A
n
111
111
A
n
112
112
A
n
113
113
A
n
114
114
A
n
115
115
A
n
116
116
A
n
117
117
A
n
118
118
A
ALA
1
n
1
MET
1
B
SER
2
n
2
SER
2
B
ILE
3
n
3
ILE
3
B
THR
4
n
4
THR
4
B
LEU
5
n
5
LEU
5
B
SER
6
n
6
SER
6
B
ASP
7
n
7
ASP
7
B
SER
8
n
8
SER
8
B
ALA
9
n
9
ALA
9
B
ALA
10
n
10
ALA
10
B
ALA
11
n
11
ALA
11
B
ARG
12
n
12
ARG
12
B
VAL
13
n
13
VAL
13
B
ASN
14
n
14
ASN
14
B
THR
15
n
15
THR
15
B
PHE
16
n
16
PHE
16
B
LEU
17
n
17
LEU
17
B
ALA
18
n
18
ALA
18
B
ASN
19
n
19
ASN
19
B
ARG
20
n
20
ARG
20
B
GLY
21
n
21
GLY
21
B
LYS
22
n
22
LYS
22
B
GLY
23
n
23
GLY
23
B
PHE
24
n
24
PHE
24
B
GLY
25
n
25
GLY
25
B
LEU
26
n
26
LEU
26
B
ARG
27
n
27
ARG
27
B
LEU
28
n
28
LEU
28
B
GLY
29
n
29
GLY
29
B
VAL
30
n
30
VAL
30
B
ARG
31
n
31
ARG
31
B
THR
32
n
32
THR
32
B
SER
33
n
33
SER
33
B
GLY
34
n
34
GLY
34
B
CYS
35
n
35
CYS
35
B
SER
36
n
36
SER
36
B
GLY
37
n
37
GLY
37
B
MET
38
n
38
MET
38
B
ALA
39
n
39
ALA
39
B
TYR
40
n
40
TYR
40
B
VAL
41
n
41
VAL
41
B
LEU
42
n
42
LEU
42
B
GLU
43
n
43
GLU
43
B
PHE
44
n
44
PHE
44
B
VAL
45
n
45
VAL
45
B
ASP
46
n
46
ASP
46
B
GLU
47
n
47
GLU
47
B
PRO
48
n
48
PRO
48
B
THR
49
n
49
THR
49
B
PRO
50
n
50
PRO
50
B
GLU
51
n
51
GLU
51
B
ASP
52
n
52
ASP
52
B
ILE
53
n
53
ILE
53
B
VAL
54
n
54
VAL
54
B
PHE
55
n
55
PHE
55
B
GLU
56
n
56
GLU
56
B
ASP
57
n
57
ASP
57
B
LYS
58
n
58
LYS
58
B
GLY
59
n
59
GLY
59
B
VAL
60
n
60
VAL
60
B
LYS
61
n
61
LYS
61
B
VAL
62
n
62
VAL
62
B
VAL
63
n
63
VAL
63
B
VAL
64
n
64
VAL
64
B
ASP
65
n
65
ASP
65
B
GLY
66
n
66
GLY
66
B
LYS
67
n
67
LYS
67
B
SER
68
n
68
SER
68
B
LEU
69
n
69
LEU
69
B
GLN
70
n
70
GLN
70
B
PHE
71
n
71
PHE
71
B
LEU
72
n
72
LEU
72
B
ASP
73
n
73
ASP
73
B
GLY
74
n
74
GLY
74
B
THR
75
n
75
THR
75
B
GLN
76
n
76
GLN
76
B
LEU
77
n
77
LEU
77
B
ASP
78
n
78
ASP
78
B
PHE
79
n
79
PHE
79
B
VAL
80
n
80
VAL
80
B
LYS
81
n
81
LYS
81
B
GLU
82
n
82
GLU
82
B
GLY
83
n
83
GLY
83
B
LEU
84
n
84
LEU
84
B
ASN
85
n
85
ASN
85
B
GLU
86
n
86
GLU
86
B
GLY
87
n
87
GLY
87
B
PHE
88
n
88
PHE
88
B
LYS
89
n
89
LYS
89
B
PHE
90
n
90
PHE
90
B
THR
91
n
91
THR
91
B
ASN
92
n
92
ASN
92
B
PRO
93
n
93
PRO
93
B
ASN
94
n
94
ASN
94
B
VAL
95
n
95
VAL
95
B
LYS
96
n
96
LYS
96
B
ASP
97
n
97
ASP
97
B
n
98
98
B
n
99
99
B
n
100
100
B
n
101
101
B
n
102
102
B
n
103
103
B
n
104
104
B
n
105
105
B
n
106
106
B
n
107
107
B
n
108
108
B
n
109
109
B
n
110
110
B
n
111
111
B
n
112
112
B
n
113
113
B
n
114
114
B
n
115
115
B
n
116
116
B
n
117
117
B
n
118
118
B
author_defined_assembly
4
tetrameric
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
-1.0000000000
0.0000000000
0.0000000000
0.0000000000
-1.0000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
4_775
-x+2,-y+2,z
crystal symmetry operation
55.3370000000
95.8464955384
0.0000000000
A
N
THR
4
A
N
THR
4
A
O
LEU
77
A
O
LEU
77
A
N
GLU
82
A
N
GLU
82
A
O
ASN
85
A
O
ASN
85
A
O
ALA
39
A
O
ALA
39
A
N
ARG
31
A
N
ARG
31
A
N
LEU
26
A
N
LEU
26
A
O
VAL
63
A
O
VAL
63
A
O
VAL
64
A
O
VAL
64
A
N
ILE
53
A
N
ILE
53
B
N
THR
4
B
N
THR
4
B
O
LEU
77
B
O
LEU
77
B
N
GLU
82
B
N
GLU
82
B
O
ASN
85
B
O
ASN
85
B
O
ALA
39
B
O
ALA
39
B
N
ARG
31
B
N
ARG
31
B
N
LEU
26
B
N
LEU
26
B
O
VAL
63
B
O
VAL
63
B
O
VAL
64
B
O
VAL
64
B
N
ILE
53
B
N
ILE
53
1
A
CG
MET
1
A
CG
MET
1
1
Y
1
A
SD
MET
1
A
SD
MET
1
1
Y
1
A
CE
MET
1
A
CE
MET
1
1
Y
1
B
CG
MET
1
B
CG
MET
1
1
Y
1
B
SD
MET
1
B
SD
MET
1
1
Y
1
B
CE
MET
1
B
CE
MET
1
1
Y
1
A
GLU
98
A
GLU
98
1
Y
1
A
CYS
99
A
CYS
99
1
Y
1
A
GLY
100
A
GLY
100
1
Y
1
A
CYS
101
A
CYS
101
1
Y
1
A
GLY
102
A
GLY
102
1
Y
1
A
GLU
103
A
GLU
103
1
Y
1
A
SER
104
A
SER
104
1
Y
1
A
PHE
105
A
PHE
105
1
Y
1
A
LYS
106
A
LYS
106
1
Y
1
A
LEU
107
A
LEU
107
1
Y
1
A
ALA
108
A
ALA
108
1
Y
1
A
ALA
109
A
ALA
109
1
Y
1
A
ALA
110
A
ALA
110
1
Y
1
A
LEU
111
A
LEU
111
1
Y
1
A
ASP
112
A
ASP
112
1
Y
1
A
HIS
113
A
HIS
113
1
Y
1
A
HIS
114
A
HIS
114
1
Y
1
A
HIS
115
A
HIS
115
1
Y
1
A
HIS
116
A
HIS
116
1
Y
1
A
HIS
117
A
HIS
117
1
Y
1
A
HIS
118
A
HIS
118
1
Y
1
B
GLU
98
B
GLU
98
1
Y
1
B
CYS
99
B
CYS
99
1
Y
1
B
GLY
100
B
GLY
100
1
Y
1
B
CYS
101
B
CYS
101
1
Y
1
B
GLY
102
B
GLY
102
1
Y
1
B
GLU
103
B
GLU
103
1
Y
1
B
SER
104
B
SER
104
1
Y
1
B
PHE
105
B
PHE
105
1
Y
1
B
LYS
106
B
LYS
106
1
Y
1
B
LEU
107
B
LEU
107
1
Y
1
B
ALA
108
B
ALA
108
1
Y
1
B
ALA
109
B
ALA
109
1
Y
1
B
ALA
110
B
ALA
110
1
Y
1
B
LEU
111
B
LEU
111
1
Y
1
B
ASP
112
B
ASP
112
1
Y
1
B
HIS
113
B
HIS
113
1
Y
1
B
HIS
114
B
HIS
114
1
Y
1
B
HIS
115
B
HIS
115
1
Y
1
B
HIS
116
B
HIS
116
1
Y
1
B
HIS
117
B
HIS
117
1
Y
1
B
HIS
118
B
HIS
118
1
Y
1
6.87
0.90
118.30
125.17
A
A
A
CB
CG
OD2
ASP
ASP
ASP
57
57
57
N
1
5.40
0.90
118.30
123.70
A
A
A
CB
CG
OD2
ASP
ASP
ASP
65
65
65
N
1
6.52
0.90
118.30
124.82
B
B
B
CB
CG
OD2
ASP
ASP
ASP
57
57
57
N
1
B
B
O
O
HOH
HOH
129
151
2.08
1_555
4_665
1
A
SER
2
-65.37
46.40
1
B
SER
2
-68.63
47.04
1
B
ASN
94
-78.65
21.20
43.78
-0.11000
-0.06000
0.00000
-0.11000
0.00000
0.17000
0.925
0.908
0.263
0.229
0.231
2.30
27.22
580
11110
5.000
95.2
7.381
0.172
RANDOM
1
THROUGHOUT
0.000
SIR
0.308
0.234
0.80
0.80
1.40
MAXIMUM LIKELIHOOD
BABINET MODEL WITH MASK
2.30
27.22
85
1557
2
0
1470
0.014
0.022
1492
1.514
1.968
2010
7.515
5.000
192
0.091
0.200
228
0.006
0.020
1128
0.219
0.200
556
0.198
0.200
82
0.180
0.200
79
0.249
0.200
14
0.919
1.500
952
1.756
2.000
1524
2.306
3.000
540
4.010
4.500
486
1
A
1
736
X-RAY DIFFRACTION
tight positional
0.02
0.05
2
A
1
736
X-RAY DIFFRACTION
tight thermal
0.06
0.50
0.391
0.304
2.36
32
696
20
44.2
2.300
500.000
1R94
12243
-3.000
0.063
1
38.0
5.6
99.4
2.30
2.40
5.5
0.457
5.3
99.1
refinement
REFMAC
5.1.24
data collection
MAR345
data scaling
SCALEPACK
phasing
CNS
Crystal Structure of IscA (MERCURY DERIVATIVE)
1
N
N
1
N
N
2
N
N
2
N
N
3
N
N
3
N
N
The biological assembly comprises two possible tetramers (A,B). tetramer A is generated from either monomer in asymmetric unit using the following symmetry operators: -x,-y, z and -y,x-y,z+2/3 and y,-x+y,z+2/3. Tetramer B is generated from the dimer in the asymmetric unit and the symmetry operator -x,-y,z.
A
SER
6
A
SER
6
HELX_P
A
GLY
21
A
GLY
21
1
1
16
A
SER
68
A
SER
68
HELX_P
A
ASP
73
A
ASP
73
1
2
6
B
SER
6
B
SER
6
HELX_P
B
GLY
21
B
GLY
21
1
3
16
B
SER
68
B
SER
68
HELX_P
B
ASP
73
B
ASP
73
1
4
6
metalc
2.808
A
CYS
35
A
SG
CYS
35
4_775
A
HG
119
C
HG
HG
1_555
metalc
2.773
B
CYS
35
B
SG
CYS
35
4_775
B
HG
119
D
HG
HG
1_555
METAL TRANSPORT
TETRAMERIC, BETA BARREL, IRON-SULFUR CLUSTER PROTEIN, PSEUDO-SYMMETRIC MOTIFS, METAL TRANSPORT
A
A
A
MET
1
A
MET
1
A
ASP
97
A
ASP
97
1
B
MET
1
B
MET
1
B
ASP
97
B
ASP
97
1
YFHF_ECOLI
UNP
1
1
P0AAC8
MSITLSDSAAARVNTFLANRGKGFGLRLGVRTSGCSGMAYVLEFVDEPTPEDIVFEDKGVKVVVDGKSLQFLDGTQLDFV
KEGLNEGFKFTNPNVKDECGCGESF
1
105
1R94
1
105
P0AAC8
A
1
1
105
1
105
1R94
1
105
P0AAC8
B
1
1
105
1
cloning artifact
LYS
106
1R94
A
P0AAC8
UNP
106
1
cloning artifact
LEU
107
1R94
A
P0AAC8
UNP
107
1
cloning artifact
ALA
108
1R94
A
P0AAC8
UNP
108
1
cloning artifact
ALA
109
1R94
A
P0AAC8
UNP
109
1
cloning artifact
ALA
110
1R94
A
P0AAC8
UNP
110
1
cloning artifact
LEU
111
1R94
A
P0AAC8
UNP
111
1
cloning artifact
ASP
112
1R94
A
P0AAC8
UNP
112
1
expression tag
HIS
113
1R94
A
P0AAC8
UNP
113
1
expression tag
HIS
114
1R94
A
P0AAC8
UNP
114
1
expression tag
HIS
115
1R94
A
P0AAC8
UNP
115
1
expression tag
HIS
116
1R94
A
P0AAC8
UNP
116
1
expression tag
HIS
117
1R94
A
P0AAC8
UNP
117
1
expression tag
HIS
118
1R94
A
P0AAC8
UNP
118
2
cloning artifact
LYS
106
1R94
B
P0AAC8
UNP
106
2
cloning artifact
LEU
107
1R94
B
P0AAC8
UNP
107
2
cloning artifact
ALA
108
1R94
B
P0AAC8
UNP
108
2
cloning artifact
ALA
109
1R94
B
P0AAC8
UNP
109
2
cloning artifact
ALA
110
1R94
B
P0AAC8
UNP
110
2
cloning artifact
LEU
111
1R94
B
P0AAC8
UNP
111
2
cloning artifact
ASP
112
1R94
B
P0AAC8
UNP
112
2
expression tag
HIS
113
1R94
B
P0AAC8
UNP
113
2
expression tag
HIS
114
1R94
B
P0AAC8
UNP
114
2
expression tag
HIS
115
1R94
B
P0AAC8
UNP
115
2
expression tag
HIS
116
1R94
B
P0AAC8
UNP
116
2
expression tag
HIS
117
1R94
B
P0AAC8
UNP
117
2
expression tag
HIS
118
1R94
B
P0AAC8
UNP
118
3
4
3
4
parallel
anti-parallel
anti-parallel
parallel
anti-parallel
parallel
anti-parallel
anti-parallel
parallel
anti-parallel
A
THR
4
A
THR
4
A
LEU
5
A
LEU
5
A
GLN
76
A
GLN
76
A
GLU
82
A
GLU
82
A
ASN
85
A
ASN
85
A
THR
91
A
THR
91
A
MET
38
A
MET
38
A
VAL
45
A
VAL
45
A
GLY
25
A
GLY
25
A
THR
32
A
THR
32
A
VAL
60
A
VAL
60
A
ASP
65
A
ASP
65
A
ASP
52
A
ASP
52
A
ASP
57
A
ASP
57
B
THR
4
B
THR
4
B
LEU
5
B
LEU
5
B
GLN
76
B
GLN
76
B
GLU
82
B
GLU
82
B
ASN
85
B
ASN
85
B
THR
91
B
THR
91
B
MET
38
B
MET
38
B
VAL
45
B
VAL
45
B
GLY
25
B
GLY
25
B
THR
32
B
THR
32
B
VAL
60
B
VAL
60
B
ASP
65
B
ASP
65
B
ASP
52
B
ASP
52
B
ASP
57
B
ASP
57
BINDING SITE FOR RESIDUE HG A 119
A
HG
119
Software
2
BINDING SITE FOR RESIDUE HG B 119
B
HG
119
Software
1
A
CYS
35
A
CYS
35
2
4_775
A
GLU
82
A
GLU
82
2
1_555
B
CYS
35
B
CYS
35
1
4_775
171
P 62