0.017109
0.000000
0.002654
0.000000
0.011519
0.000000
0.000000
0.000000
0.021493
0.00000
0.00000
0.00000
Korndoerfer, I.P.
Skerra, A.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
8
90.00
98.82
90.00
58.450
86.814
47.084
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
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
N
N
124
S
C
N
125
N
C
N
126
N
O
N
127
N
C
Y
128
N
C
Y
129
N
N
Y
130
N
C
Y
131
N
C
Y
132
N
N
N
133
N
O
N
134
N
H
N
135
N
H
N
136
N
H
N
137
N
H
N
138
N
H
N
139
N
H
N
140
N
H
N
141
N
H
N
142
N
H
N
143
N
H
N
144
N
O
N
145
N
H
N
146
N
H
N
147
N
N
N
148
S
C
N
149
N
C
N
150
N
O
N
151
S
C
N
152
N
C
N
153
N
C
N
154
N
C
N
155
N
O
N
156
N
H
N
157
N
H
N
158
N
H
N
159
N
H
N
160
N
H
N
161
N
H
N
162
N
H
N
163
N
H
N
164
N
H
N
165
N
H
N
166
N
H
N
167
N
H
N
168
N
H
N
169
N
N
N
170
S
C
N
171
N
C
N
172
N
O
N
173
N
C
N
174
N
C
N
175
N
C
N
176
N
C
N
177
N
O
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
N
N
192
S
C
N
193
N
C
N
194
N
O
N
195
N
C
N
196
N
C
N
197
N
C
N
198
N
C
N
199
N
N
N
200
N
O
N
201
N
H
N
202
N
H
N
203
N
H
N
204
N
H
N
205
N
H
N
206
N
H
N
207
N
H
N
208
N
H
N
209
N
H
N
210
N
H
N
211
N
H
N
212
N
H
N
213
N
H
N
214
N
H
N
215
N
H
N
216
N
N
N
217
S
C
N
218
N
C
N
219
N
O
N
220
N
C
N
221
N
C
N
222
N
S
N
223
N
C
N
224
N
O
N
225
N
H
N
226
N
H
N
227
N
H
N
228
N
H
N
229
N
H
N
230
N
H
N
231
N
H
N
232
N
H
N
233
N
H
N
234
N
H
N
235
N
H
N
236
N
N
N
237
S
C
N
238
N
C
N
239
N
O
N
240
N
C
Y
241
N
C
Y
242
N
C
Y
243
N
C
Y
244
N
C
Y
245
N
C
Y
246
N
C
N
247
N
O
N
248
N
H
N
249
N
H
N
250
N
H
N
251
N
H
N
252
N
H
N
253
N
H
N
254
N
H
N
255
N
H
N
256
N
H
N
257
N
H
N
258
N
H
N
259
N
N
N
260
S
C
N
261
N
C
N
262
N
O
N
263
N
C
N
264
N
C
N
265
N
C
N
266
N
O
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
H
N
275
N
H
N
276
N
N
N
277
S
C
N
278
N
C
N
279
N
O
N
280
N
C
N
281
N
O
N
282
N
O
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
N
N
291
S
C
N
292
N
C
N
293
N
O
N
294
R
C
N
295
N
O
N
296
N
C
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
H
N
306
N
H
N
307
N
N
N
308
S
C
N
309
N
C
N
310
N
O
N
311
N
C
Y
312
N
C
Y
313
N
C
Y
314
N
C
Y
315
N
N
Y
316
N
C
Y
317
N
C
Y
318
N
C
Y
319
N
C
Y
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
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
Y
339
N
C
Y
340
N
C
Y
341
N
C
Y
342
N
C
Y
343
N
C
Y
344
N
C
N
345
N
O
N
346
N
O
N
347
N
H
N
348
N
H
N
349
N
H
N
350
N
H
N
351
N
H
N
352
N
H
N
353
N
H
N
354
N
H
N
355
N
H
N
356
N
H
N
357
N
H
N
358
N
N
N
359
S
C
N
360
N
C
N
361
N
O
N
362
N
C
N
363
N
C
N
364
N
C
N
365
N
O
N
366
N
H
N
367
N
H
N
368
N
H
N
369
N
H
N
370
N
H
N
371
N
H
N
372
N
H
N
373
N
H
N
374
N
H
N
375
N
H
N
376
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
sing
N
118
N
sing
N
119
N
sing
N
120
N
sing
N
121
N
sing
N
122
N
doub
N
123
N
sing
N
124
N
sing
N
125
N
sing
N
126
N
sing
Y
127
N
sing
Y
128
N
doub
Y
129
N
doub
N
130
N
sing
Y
131
N
sing
N
132
N
sing
Y
133
N
sing
N
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
sing
N
145
N
doub
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
sing
N
155
N
sing
N
156
N
sing
N
157
N
sing
N
158
N
sing
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
doub
N
167
N
sing
N
168
N
sing
N
169
N
sing
N
170
N
sing
N
171
N
sing
N
172
N
sing
N
173
N
sing
N
174
N
sing
N
175
N
sing
N
176
N
sing
N
177
N
sing
N
178
N
sing
N
179
N
sing
N
180
N
sing
N
181
N
sing
N
182
N
sing
N
183
N
sing
N
184
N
sing
N
185
N
sing
N
186
N
sing
N
187
N
doub
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
sing
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
doub
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
sing
N
225
N
sing
N
226
N
sing
N
227
N
sing
N
228
N
sing
N
229
N
sing
N
230
N
doub
N
231
N
sing
N
232
N
sing
N
233
N
sing
N
234
N
sing
Y
235
N
doub
Y
236
N
sing
Y
237
N
sing
N
238
N
sing
Y
239
N
doub
N
240
N
sing
Y
241
N
doub
N
242
N
sing
Y
243
N
sing
N
244
N
sing
N
245
N
sing
N
246
N
sing
N
247
N
sing
N
248
N
sing
N
249
N
sing
N
250
N
sing
N
251
N
sing
N
252
N
sing
N
253
N
doub
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
sing
N
270
N
doub
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
sing
N
297
N
sing
N
298
N
sing
N
299
N
doub
N
300
N
sing
N
301
N
sing
N
302
N
sing
N
303
N
sing
Y
304
N
doub
Y
305
N
sing
Y
306
N
sing
N
307
N
sing
Y
308
N
doub
Y
309
N
sing
Y
310
N
sing
N
311
N
sing
Y
312
N
sing
Y
313
N
doub
N
314
N
sing
Y
315
N
doub
N
316
N
sing
Y
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
doub
N
328
N
sing
N
329
N
sing
N
330
N
sing
N
331
N
sing
Y
332
N
doub
Y
333
N
sing
Y
334
N
sing
N
335
N
sing
Y
336
N
doub
N
337
N
sing
Y
338
N
doub
N
339
N
sing
Y
340
N
sing
N
341
N
sing
N
342
N
sing
N
343
N
sing
N
344
N
sing
N
345
N
sing
N
346
N
sing
N
347
N
sing
N
348
N
sing
N
349
N
sing
N
350
N
sing
N
351
N
doub
N
352
N
sing
N
353
N
sing
N
354
N
sing
N
355
N
sing
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
US
Protein Sci.
PRCIEI
0795
0961-8368
11
883
893
10.1110/ps.4150102
11910031
Improved affinity of engineered streptavidin for the Strep-tag II peptide is due to a fixed open conformation of the lid-like loop at the binding site.
2002
10.2210/pdb1kl4/pdb
pdb_00001kl4
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
298.0
1
OSMIC MIRRORS
IMAGE PLATE
2001-07-17
MARRESEARCH
SINGLE WAVELENGTH
M
x-ray
1
1.5418
1.0
1.5418
ROTATING ANODE
RIGAKU RU300
13353.535
streptavidin
E44I,S45G,V47R
4
man
polymer
18.015
water
195
nat
water
no
no
MEAGITGTWYNQLGSTFIVTAGADGALTGTYIGARGNAESRYVLTGRYDSAPATDGSGTALGWTVAWKNNYRNAHSATTW
SGQYVGGAEARINTQWLLTSGTTEANAWKSTLVGHDTFTKVKPSAAS
MEAGITGTWYNQLGSTFIVTAGADGALTGTYIGARGNAESRYVLTGRYDSAPATDGSGTALGWTVAWKNNYRNAHSATTW
SGQYVGGAEARINTQWLLTSGTTEANAWKSTLVGHDTFTKVKPSAAS
A,B,C,D
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
Streptomyces
Escherichia
sample
1895
Streptomyces avidinii
562
Escherichia coli
plasmid
pSA1
1
2.2
44
VAPOR DIFFUSION, HANGING DROP
6.9
50 mM Na3PO4, 50 mM Na3-citrate, 30% PEG 600, pH 6.9, VAPOR DIFFUSION, HANGING DROP, temperature 293K
293
database_2
struct_ref_seq_dif
chem_comp_atom
chem_comp_bond
pdbx_initial_refinement_model
repository
Initial release
Version format compliance
Version format compliance
Database references
Data collection
Refinement description
1
0
2002-04-03
1
1
2008-04-27
1
2
2011-07-13
1
3
2021-10-27
1
4
2023-08-16
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_struct_ref_seq_dif.details
an engineered streptavidin with improved affinity for the strep-tag II peptide : apo-SAm1
an engineered streptavidin with improved affinity for the strep-tag II peptide : SAm1-StrepII
an engineered streptavidin with improved affinity for the strep-tag II peptide : : SAm2-StrepII
Complex Between wild-type Streptavidin and The Strep-Tag II Peptide
RCSB
Y
RCSB
2001-12-11
REL
REL
HOH
water
1SWU
PDB
experimental model
HOH
6
2
HOH
HOH
140
A
HOH
11
2
HOH
HOH
141
A
HOH
19
2
HOH
HOH
142
A
HOH
26
2
HOH
HOH
143
A
HOH
29
2
HOH
HOH
144
A
HOH
30
2
HOH
HOH
145
A
HOH
34
2
HOH
HOH
146
A
HOH
36
2
HOH
HOH
147
A
HOH
38
2
HOH
HOH
148
A
HOH
41
2
HOH
HOH
149
A
HOH
45
2
HOH
HOH
150
A
HOH
47
2
HOH
HOH
151
A
HOH
49
2
HOH
HOH
152
A
HOH
51
2
HOH
HOH
153
A
HOH
52
2
HOH
HOH
154
A
HOH
53
2
HOH
HOH
155
A
HOH
54
2
HOH
HOH
156
A
HOH
63
2
HOH
HOH
157
A
HOH
64
2
HOH
HOH
158
A
HOH
72
2
HOH
HOH
159
A
HOH
79
2
HOH
HOH
160
A
HOH
80
2
HOH
HOH
161
A
HOH
83
2
HOH
HOH
162
A
HOH
89
2
HOH
HOH
163
A
HOH
93
2
HOH
HOH
164
A
HOH
96
2
HOH
HOH
165
A
HOH
100
2
HOH
HOH
166
A
HOH
105
2
HOH
HOH
167
A
HOH
107
2
HOH
HOH
168
A
HOH
117
2
HOH
HOH
169
A
HOH
123
2
HOH
HOH
170
A
HOH
124
2
HOH
HOH
171
A
HOH
128
2
HOH
HOH
172
A
HOH
129
2
HOH
HOH
173
A
HOH
131
2
HOH
HOH
174
A
HOH
140
2
HOH
HOH
175
A
HOH
143
2
HOH
HOH
176
A
HOH
145
2
HOH
HOH
177
A
HOH
148
2
HOH
HOH
178
A
HOH
151
2
HOH
HOH
179
A
HOH
152
2
HOH
HOH
180
A
HOH
154
2
HOH
HOH
181
A
HOH
156
2
HOH
HOH
182
A
HOH
158
2
HOH
HOH
183
A
HOH
164
2
HOH
HOH
184
A
HOH
167
2
HOH
HOH
185
A
HOH
173
2
HOH
HOH
186
A
HOH
174
2
HOH
HOH
187
A
HOH
177
2
HOH
HOH
188
A
HOH
182
2
HOH
HOH
189
A
HOH
184
2
HOH
HOH
190
A
HOH
1
2
HOH
HOH
140
B
HOH
8
2
HOH
HOH
141
B
HOH
12
2
HOH
HOH
142
B
HOH
14
2
HOH
HOH
143
B
HOH
16
2
HOH
HOH
144
B
HOH
20
2
HOH
HOH
145
B
HOH
21
2
HOH
HOH
146
B
HOH
32
2
HOH
HOH
147
B
HOH
37
2
HOH
HOH
148
B
HOH
43
2
HOH
HOH
149
B
HOH
50
2
HOH
HOH
150
B
HOH
57
2
HOH
HOH
151
B
HOH
58
2
HOH
HOH
152
B
HOH
59
2
HOH
HOH
153
B
HOH
62
2
HOH
HOH
154
B
HOH
66
2
HOH
HOH
155
B
HOH
67
2
HOH
HOH
156
B
HOH
75
2
HOH
HOH
157
B
HOH
77
2
HOH
HOH
158
B
HOH
78
2
HOH
HOH
159
B
HOH
87
2
HOH
HOH
160
B
HOH
103
2
HOH
HOH
161
B
HOH
104
2
HOH
HOH
162
B
HOH
109
2
HOH
HOH
163
B
HOH
113
2
HOH
HOH
164
B
HOH
114
2
HOH
HOH
165
B
HOH
118
2
HOH
HOH
166
B
HOH
121
2
HOH
HOH
167
B
HOH
122
2
HOH
HOH
168
B
HOH
126
2
HOH
HOH
169
B
HOH
132
2
HOH
HOH
170
B
HOH
133
2
HOH
HOH
171
B
HOH
134
2
HOH
HOH
172
B
HOH
135
2
HOH
HOH
173
B
HOH
144
2
HOH
HOH
174
B
HOH
147
2
HOH
HOH
175
B
HOH
149
2
HOH
HOH
176
B
HOH
155
2
HOH
HOH
177
B
HOH
160
2
HOH
HOH
178
B
HOH
162
2
HOH
HOH
179
B
HOH
165
2
HOH
HOH
180
B
HOH
166
2
HOH
HOH
181
B
HOH
168
2
HOH
HOH
182
B
HOH
170
2
HOH
HOH
183
B
HOH
171
2
HOH
HOH
184
B
HOH
175
2
HOH
HOH
185
B
HOH
178
2
HOH
HOH
186
B
HOH
180
2
HOH
HOH
187
B
HOH
183
2
HOH
HOH
188
B
HOH
189
2
HOH
HOH
189
B
HOH
194
2
HOH
HOH
190
B
HOH
2
2
HOH
HOH
140
C
HOH
3
2
HOH
HOH
141
C
HOH
4
2
HOH
HOH
142
C
HOH
13
2
HOH
HOH
143
C
HOH
15
2
HOH
HOH
144
C
HOH
17
2
HOH
HOH
145
C
HOH
22
2
HOH
HOH
146
C
HOH
23
2
HOH
HOH
147
C
HOH
24
2
HOH
HOH
148
C
HOH
27
2
HOH
HOH
149
C
HOH
28
2
HOH
HOH
150
C
HOH
33
2
HOH
HOH
151
C
HOH
40
2
HOH
HOH
152
C
HOH
44
2
HOH
HOH
153
C
HOH
46
2
HOH
HOH
154
C
HOH
55
2
HOH
HOH
155
C
HOH
56
2
HOH
HOH
156
C
HOH
61
2
HOH
HOH
157
C
HOH
65
2
HOH
HOH
158
C
HOH
68
2
HOH
HOH
159
C
HOH
73
2
HOH
HOH
160
C
HOH
76
2
HOH
HOH
161
C
HOH
81
2
HOH
HOH
162
C
HOH
82
2
HOH
HOH
163
C
HOH
84
2
HOH
HOH
164
C
HOH
85
2
HOH
HOH
165
C
HOH
88
2
HOH
HOH
166
C
HOH
92
2
HOH
HOH
167
C
HOH
94
2
HOH
HOH
168
C
HOH
97
2
HOH
HOH
169
C
HOH
99
2
HOH
HOH
170
C
HOH
101
2
HOH
HOH
171
C
HOH
102
2
HOH
HOH
172
C
HOH
106
2
HOH
HOH
173
C
HOH
108
2
HOH
HOH
174
C
HOH
111
2
HOH
HOH
175
C
HOH
115
2
HOH
HOH
176
C
HOH
125
2
HOH
HOH
177
C
HOH
127
2
HOH
HOH
178
C
HOH
130
2
HOH
HOH
179
C
HOH
137
2
HOH
HOH
180
C
HOH
138
2
HOH
HOH
181
C
HOH
139
2
HOH
HOH
182
C
HOH
142
2
HOH
HOH
183
C
HOH
146
2
HOH
HOH
184
C
HOH
150
2
HOH
HOH
185
C
HOH
153
2
HOH
HOH
186
C
HOH
159
2
HOH
HOH
187
C
HOH
169
2
HOH
HOH
188
C
HOH
176
2
HOH
HOH
189
C
HOH
179
2
HOH
HOH
190
C
HOH
181
2
HOH
HOH
191
C
HOH
185
2
HOH
HOH
192
C
HOH
186
2
HOH
HOH
193
C
HOH
187
2
HOH
HOH
194
C
HOH
190
2
HOH
HOH
195
C
HOH
191
2
HOH
HOH
196
C
HOH
192
2
HOH
HOH
197
C
HOH
195
2
HOH
HOH
198
C
HOH
5
2
HOH
HOH
140
D
HOH
7
2
HOH
HOH
141
D
HOH
9
2
HOH
HOH
142
D
HOH
10
2
HOH
HOH
143
D
HOH
18
2
HOH
HOH
144
D
HOH
25
2
HOH
HOH
145
D
HOH
31
2
HOH
HOH
146
D
HOH
35
2
HOH
HOH
147
D
HOH
39
2
HOH
HOH
148
D
HOH
42
2
HOH
HOH
149
D
HOH
48
2
HOH
HOH
150
D
HOH
60
2
HOH
HOH
151
D
HOH
69
2
HOH
HOH
152
D
HOH
70
2
HOH
HOH
153
D
HOH
71
2
HOH
HOH
154
D
HOH
74
2
HOH
HOH
155
D
HOH
86
2
HOH
HOH
156
D
HOH
90
2
HOH
HOH
157
D
HOH
91
2
HOH
HOH
158
D
HOH
95
2
HOH
HOH
159
D
HOH
98
2
HOH
HOH
160
D
HOH
110
2
HOH
HOH
161
D
HOH
112
2
HOH
HOH
162
D
HOH
116
2
HOH
HOH
163
D
HOH
119
2
HOH
HOH
164
D
HOH
120
2
HOH
HOH
165
D
HOH
136
2
HOH
HOH
166
D
HOH
141
2
HOH
HOH
167
D
HOH
157
2
HOH
HOH
168
D
HOH
161
2
HOH
HOH
169
D
HOH
163
2
HOH
HOH
170
D
HOH
172
2
HOH
HOH
171
D
HOH
188
2
HOH
HOH
172
D
HOH
193
2
HOH
HOH
173
D
n
1
13
A
n
2
14
A
n
3
15
A
GLY
16
n
4
GLY
16
A
ILE
17
n
5
ILE
17
A
THR
18
n
6
THR
18
A
GLY
19
n
7
GLY
19
A
THR
20
n
8
THR
20
A
TRP
21
n
9
TRP
21
A
TYR
22
n
10
TYR
22
A
ASN
23
n
11
ASN
23
A
GLN
24
n
12
GLN
24
A
LEU
25
n
13
LEU
25
A
GLY
26
n
14
GLY
26
A
SER
27
n
15
SER
27
A
THR
28
n
16
THR
28
A
PHE
29
n
17
PHE
29
A
ILE
30
n
18
ILE
30
A
VAL
31
n
19
VAL
31
A
THR
32
n
20
THR
32
A
ALA
33
n
21
ALA
33
A
GLY
34
n
22
GLY
34
A
ALA
35
n
23
ALA
35
A
ASP
36
n
24
ASP
36
A
GLY
37
n
25
GLY
37
A
ALA
38
n
26
ALA
38
A
LEU
39
n
27
LEU
39
A
THR
40
n
28
THR
40
A
GLY
41
n
29
GLY
41
A
THR
42
n
30
THR
42
A
TYR
43
n
31
TYR
43
A
ILE
44
n
32
ILE
44
A
GLY
45
n
33
GLY
45
A
ALA
46
n
34
ALA
46
A
ARG
47
n
35
ARG
47
A
GLY
48
n
36
GLY
48
A
ASN
49
n
37
ASN
49
A
ALA
50
n
38
ALA
50
A
GLU
51
n
39
GLU
51
A
SER
52
n
40
SER
52
A
ARG
53
n
41
ARG
53
A
TYR
54
n
42
TYR
54
A
VAL
55
n
43
VAL
55
A
LEU
56
n
44
LEU
56
A
THR
57
n
45
THR
57
A
GLY
58
n
46
GLY
58
A
ARG
59
n
47
ARG
59
A
TYR
60
n
48
TYR
60
A
ASP
61
n
49
ASP
61
A
SER
62
n
50
SER
62
A
ALA
63
n
51
ALA
63
A
PRO
64
n
52
PRO
64
A
ALA
65
n
53
ALA
65
A
THR
66
n
54
THR
66
A
ASP
67
n
55
ASP
67
A
GLY
68
n
56
GLY
68
A
SER
69
n
57
SER
69
A
GLY
70
n
58
GLY
70
A
THR
71
n
59
THR
71
A
ALA
72
n
60
ALA
72
A
LEU
73
n
61
LEU
73
A
GLY
74
n
62
GLY
74
A
TRP
75
n
63
TRP
75
A
THR
76
n
64
THR
76
A
VAL
77
n
65
VAL
77
A
ALA
78
n
66
ALA
78
A
TRP
79
n
67
TRP
79
A
LYS
80
n
68
LYS
80
A
ASN
81
n
69
ASN
81
A
ASN
82
n
70
ASN
82
A
TYR
83
n
71
TYR
83
A
ARG
84
n
72
ARG
84
A
ASN
85
n
73
ASN
85
A
ALA
86
n
74
ALA
86
A
HIS
87
n
75
HIS
87
A
SER
88
n
76
SER
88
A
ALA
89
n
77
ALA
89
A
THR
90
n
78
THR
90
A
THR
91
n
79
THR
91
A
TRP
92
n
80
TRP
92
A
SER
93
n
81
SER
93
A
GLY
94
n
82
GLY
94
A
GLN
95
n
83
GLN
95
A
TYR
96
n
84
TYR
96
A
VAL
97
n
85
VAL
97
A
GLY
98
n
86
GLY
98
A
GLY
99
n
87
GLY
99
A
ALA
100
n
88
ALA
100
A
GLU
101
n
89
GLU
101
A
ALA
102
n
90
ALA
102
A
ARG
103
n
91
ARG
103
A
ILE
104
n
92
ILE
104
A
ASN
105
n
93
ASN
105
A
THR
106
n
94
THR
106
A
GLN
107
n
95
GLN
107
A
TRP
108
n
96
TRP
108
A
LEU
109
n
97
LEU
109
A
LEU
110
n
98
LEU
110
A
THR
111
n
99
THR
111
A
SER
112
n
100
SER
112
A
GLY
113
n
101
GLY
113
A
THR
114
n
102
THR
114
A
THR
115
n
103
THR
115
A
GLU
116
n
104
GLU
116
A
ALA
117
n
105
ALA
117
A
ASN
118
n
106
ASN
118
A
ALA
119
n
107
ALA
119
A
TRP
120
n
108
TRP
120
A
LYS
121
n
109
LYS
121
A
SER
122
n
110
SER
122
A
THR
123
n
111
THR
123
A
LEU
124
n
112
LEU
124
A
VAL
125
n
113
VAL
125
A
GLY
126
n
114
GLY
126
A
HIS
127
n
115
HIS
127
A
ASP
128
n
116
ASP
128
A
THR
129
n
117
THR
129
A
PHE
130
n
118
PHE
130
A
THR
131
n
119
THR
131
A
LYS
132
n
120
LYS
132
A
VAL
133
n
121
VAL
133
A
LYS
134
n
122
LYS
134
A
PRO
135
n
123
PRO
135
A
n
124
136
A
n
125
137
A
n
126
138
A
n
127
139
A
n
1
13
B
n
2
14
B
ALA
15
n
3
ALA
15
B
GLY
16
n
4
GLY
16
B
ILE
17
n
5
ILE
17
B
THR
18
n
6
THR
18
B
GLY
19
n
7
GLY
19
B
THR
20
n
8
THR
20
B
TRP
21
n
9
TRP
21
B
TYR
22
n
10
TYR
22
B
ASN
23
n
11
ASN
23
B
GLN
24
n
12
GLN
24
B
LEU
25
n
13
LEU
25
B
GLY
26
n
14
GLY
26
B
SER
27
n
15
SER
27
B
THR
28
n
16
THR
28
B
PHE
29
n
17
PHE
29
B
ILE
30
n
18
ILE
30
B
VAL
31
n
19
VAL
31
B
THR
32
n
20
THR
32
B
ALA
33
n
21
ALA
33
B
GLY
34
n
22
GLY
34
B
ALA
35
n
23
ALA
35
B
ASP
36
n
24
ASP
36
B
GLY
37
n
25
GLY
37
B
ALA
38
n
26
ALA
38
B
LEU
39
n
27
LEU
39
B
THR
40
n
28
THR
40
B
GLY
41
n
29
GLY
41
B
THR
42
n
30
THR
42
B
TYR
43
n
31
TYR
43
B
ILE
44
n
32
ILE
44
B
GLY
45
n
33
GLY
45
B
ALA
46
n
34
ALA
46
B
ARG
47
n
35
ARG
47
B
GLY
48
n
36
GLY
48
B
ASN
49
n
37
ASN
49
B
ALA
50
n
38
ALA
50
B
GLU
51
n
39
GLU
51
B
SER
52
n
40
SER
52
B
ARG
53
n
41
ARG
53
B
TYR
54
n
42
TYR
54
B
VAL
55
n
43
VAL
55
B
LEU
56
n
44
LEU
56
B
THR
57
n
45
THR
57
B
GLY
58
n
46
GLY
58
B
ARG
59
n
47
ARG
59
B
TYR
60
n
48
TYR
60
B
ASP
61
n
49
ASP
61
B
SER
62
n
50
SER
62
B
ALA
63
n
51
ALA
63
B
PRO
64
n
52
PRO
64
B
ALA
65
n
53
ALA
65
B
THR
66
n
54
THR
66
B
ASP
67
n
55
ASP
67
B
GLY
68
n
56
GLY
68
B
SER
69
n
57
SER
69
B
GLY
70
n
58
GLY
70
B
THR
71
n
59
THR
71
B
ALA
72
n
60
ALA
72
B
LEU
73
n
61
LEU
73
B
GLY
74
n
62
GLY
74
B
TRP
75
n
63
TRP
75
B
THR
76
n
64
THR
76
B
VAL
77
n
65
VAL
77
B
ALA
78
n
66
ALA
78
B
TRP
79
n
67
TRP
79
B
LYS
80
n
68
LYS
80
B
ASN
81
n
69
ASN
81
B
ASN
82
n
70
ASN
82
B
TYR
83
n
71
TYR
83
B
ARG
84
n
72
ARG
84
B
ASN
85
n
73
ASN
85
B
ALA
86
n
74
ALA
86
B
HIS
87
n
75
HIS
87
B
SER
88
n
76
SER
88
B
ALA
89
n
77
ALA
89
B
THR
90
n
78
THR
90
B
THR
91
n
79
THR
91
B
TRP
92
n
80
TRP
92
B
SER
93
n
81
SER
93
B
GLY
94
n
82
GLY
94
B
GLN
95
n
83
GLN
95
B
TYR
96
n
84
TYR
96
B
VAL
97
n
85
VAL
97
B
GLY
98
n
86
GLY
98
B
GLY
99
n
87
GLY
99
B
ALA
100
n
88
ALA
100
B
GLU
101
n
89
GLU
101
B
ALA
102
n
90
ALA
102
B
ARG
103
n
91
ARG
103
B
ILE
104
n
92
ILE
104
B
ASN
105
n
93
ASN
105
B
THR
106
n
94
THR
106
B
GLN
107
n
95
GLN
107
B
TRP
108
n
96
TRP
108
B
LEU
109
n
97
LEU
109
B
LEU
110
n
98
LEU
110
B
THR
111
n
99
THR
111
B
SER
112
n
100
SER
112
B
GLY
113
n
101
GLY
113
B
THR
114
n
102
THR
114
B
THR
115
n
103
THR
115
B
GLU
116
n
104
GLU
116
B
ALA
117
n
105
ALA
117
B
ASN
118
n
106
ASN
118
B
ALA
119
n
107
ALA
119
B
TRP
120
n
108
TRP
120
B
LYS
121
n
109
LYS
121
B
SER
122
n
110
SER
122
B
THR
123
n
111
THR
123
B
LEU
124
n
112
LEU
124
B
VAL
125
n
113
VAL
125
B
GLY
126
n
114
GLY
126
B
HIS
127
n
115
HIS
127
B
ASP
128
n
116
ASP
128
B
THR
129
n
117
THR
129
B
PHE
130
n
118
PHE
130
B
THR
131
n
119
THR
131
B
LYS
132
n
120
LYS
132
B
VAL
133
n
121
VAL
133
B
LYS
134
n
122
LYS
134
B
n
123
135
B
n
124
136
B
n
125
137
B
n
126
138
B
n
127
139
B
n
1
13
C
n
2
14
C
n
3
15
C
GLY
16
n
4
GLY
16
C
ILE
17
n
5
ILE
17
C
THR
18
n
6
THR
18
C
GLY
19
n
7
GLY
19
C
THR
20
n
8
THR
20
C
TRP
21
n
9
TRP
21
C
TYR
22
n
10
TYR
22
C
ASN
23
n
11
ASN
23
C
GLN
24
n
12
GLN
24
C
LEU
25
n
13
LEU
25
C
GLY
26
n
14
GLY
26
C
SER
27
n
15
SER
27
C
THR
28
n
16
THR
28
C
PHE
29
n
17
PHE
29
C
ILE
30
n
18
ILE
30
C
VAL
31
n
19
VAL
31
C
THR
32
n
20
THR
32
C
ALA
33
n
21
ALA
33
C
GLY
34
n
22
GLY
34
C
ALA
35
n
23
ALA
35
C
ASP
36
n
24
ASP
36
C
GLY
37
n
25
GLY
37
C
ALA
38
n
26
ALA
38
C
LEU
39
n
27
LEU
39
C
THR
40
n
28
THR
40
C
GLY
41
n
29
GLY
41
C
THR
42
n
30
THR
42
C
TYR
43
n
31
TYR
43
C
ILE
44
n
32
ILE
44
C
GLY
45
n
33
GLY
45
C
ALA
46
n
34
ALA
46
C
ARG
47
n
35
ARG
47
C
GLY
48
n
36
GLY
48
C
ASN
49
n
37
ASN
49
C
ALA
50
n
38
ALA
50
C
GLU
51
n
39
GLU
51
C
SER
52
n
40
SER
52
C
ARG
53
n
41
ARG
53
C
TYR
54
n
42
TYR
54
C
VAL
55
n
43
VAL
55
C
LEU
56
n
44
LEU
56
C
THR
57
n
45
THR
57
C
GLY
58
n
46
GLY
58
C
ARG
59
n
47
ARG
59
C
TYR
60
n
48
TYR
60
C
ASP
61
n
49
ASP
61
C
SER
62
n
50
SER
62
C
ALA
63
n
51
ALA
63
C
PRO
64
n
52
PRO
64
C
ALA
65
n
53
ALA
65
C
THR
66
n
54
THR
66
C
ASP
67
n
55
ASP
67
C
GLY
68
n
56
GLY
68
C
SER
69
n
57
SER
69
C
GLY
70
n
58
GLY
70
C
THR
71
n
59
THR
71
C
ALA
72
n
60
ALA
72
C
LEU
73
n
61
LEU
73
C
GLY
74
n
62
GLY
74
C
TRP
75
n
63
TRP
75
C
THR
76
n
64
THR
76
C
VAL
77
n
65
VAL
77
C
ALA
78
n
66
ALA
78
C
TRP
79
n
67
TRP
79
C
LYS
80
n
68
LYS
80
C
ASN
81
n
69
ASN
81
C
ASN
82
n
70
ASN
82
C
TYR
83
n
71
TYR
83
C
ARG
84
n
72
ARG
84
C
ASN
85
n
73
ASN
85
C
ALA
86
n
74
ALA
86
C
HIS
87
n
75
HIS
87
C
SER
88
n
76
SER
88
C
ALA
89
n
77
ALA
89
C
THR
90
n
78
THR
90
C
THR
91
n
79
THR
91
C
TRP
92
n
80
TRP
92
C
SER
93
n
81
SER
93
C
GLY
94
n
82
GLY
94
C
GLN
95
n
83
GLN
95
C
TYR
96
n
84
TYR
96
C
VAL
97
n
85
VAL
97
C
GLY
98
n
86
GLY
98
C
GLY
99
n
87
GLY
99
C
ALA
100
n
88
ALA
100
C
GLU
101
n
89
GLU
101
C
ALA
102
n
90
ALA
102
C
ARG
103
n
91
ARG
103
C
ILE
104
n
92
ILE
104
C
ASN
105
n
93
ASN
105
C
THR
106
n
94
THR
106
C
GLN
107
n
95
GLN
107
C
TRP
108
n
96
TRP
108
C
LEU
109
n
97
LEU
109
C
LEU
110
n
98
LEU
110
C
THR
111
n
99
THR
111
C
SER
112
n
100
SER
112
C
GLY
113
n
101
GLY
113
C
THR
114
n
102
THR
114
C
THR
115
n
103
THR
115
C
GLU
116
n
104
GLU
116
C
ALA
117
n
105
ALA
117
C
ASN
118
n
106
ASN
118
C
ALA
119
n
107
ALA
119
C
TRP
120
n
108
TRP
120
C
LYS
121
n
109
LYS
121
C
SER
122
n
110
SER
122
C
THR
123
n
111
THR
123
C
LEU
124
n
112
LEU
124
C
VAL
125
n
113
VAL
125
C
GLY
126
n
114
GLY
126
C
HIS
127
n
115
HIS
127
C
ASP
128
n
116
ASP
128
C
THR
129
n
117
THR
129
C
PHE
130
n
118
PHE
130
C
THR
131
n
119
THR
131
C
LYS
132
n
120
LYS
132
C
VAL
133
n
121
VAL
133
C
LYS
134
n
122
LYS
134
C
n
123
135
C
n
124
136
C
n
125
137
C
n
126
138
C
n
127
139
C
n
1
13
D
n
2
14
D
n
3
15
D
GLY
16
n
4
GLY
16
D
ILE
17
n
5
ILE
17
D
THR
18
n
6
THR
18
D
GLY
19
n
7
GLY
19
D
THR
20
n
8
THR
20
D
TRP
21
n
9
TRP
21
D
TYR
22
n
10
TYR
22
D
ASN
23
n
11
ASN
23
D
GLN
24
n
12
GLN
24
D
LEU
25
n
13
LEU
25
D
GLY
26
n
14
GLY
26
D
SER
27
n
15
SER
27
D
THR
28
n
16
THR
28
D
PHE
29
n
17
PHE
29
D
ILE
30
n
18
ILE
30
D
VAL
31
n
19
VAL
31
D
THR
32
n
20
THR
32
D
ALA
33
n
21
ALA
33
D
GLY
34
n
22
GLY
34
D
ALA
35
n
23
ALA
35
D
ASP
36
n
24
ASP
36
D
GLY
37
n
25
GLY
37
D
ALA
38
n
26
ALA
38
D
LEU
39
n
27
LEU
39
D
THR
40
n
28
THR
40
D
GLY
41
n
29
GLY
41
D
THR
42
n
30
THR
42
D
TYR
43
n
31
TYR
43
D
ILE
44
n
32
ILE
44
D
GLY
45
n
33
GLY
45
D
ALA
46
n
34
ALA
46
D
ARG
47
n
35
ARG
47
D
GLY
48
n
36
GLY
48
D
ASN
49
n
37
ASN
49
D
ALA
50
n
38
ALA
50
D
GLU
51
n
39
GLU
51
D
SER
52
n
40
SER
52
D
ARG
53
n
41
ARG
53
D
TYR
54
n
42
TYR
54
D
VAL
55
n
43
VAL
55
D
LEU
56
n
44
LEU
56
D
THR
57
n
45
THR
57
D
GLY
58
n
46
GLY
58
D
ARG
59
n
47
ARG
59
D
TYR
60
n
48
TYR
60
D
ASP
61
n
49
ASP
61
D
SER
62
n
50
SER
62
D
ALA
63
n
51
ALA
63
D
PRO
64
n
52
PRO
64
D
ALA
65
n
53
ALA
65
D
THR
66
n
54
THR
66
D
ASP
67
n
55
ASP
67
D
GLY
68
n
56
GLY
68
D
SER
69
n
57
SER
69
D
GLY
70
n
58
GLY
70
D
THR
71
n
59
THR
71
D
ALA
72
n
60
ALA
72
D
LEU
73
n
61
LEU
73
D
GLY
74
n
62
GLY
74
D
TRP
75
n
63
TRP
75
D
THR
76
n
64
THR
76
D
VAL
77
n
65
VAL
77
D
ALA
78
n
66
ALA
78
D
TRP
79
n
67
TRP
79
D
LYS
80
n
68
LYS
80
D
ASN
81
n
69
ASN
81
D
ASN
82
n
70
ASN
82
D
TYR
83
n
71
TYR
83
D
ARG
84
n
72
ARG
84
D
ASN
85
n
73
ASN
85
D
ALA
86
n
74
ALA
86
D
HIS
87
n
75
HIS
87
D
SER
88
n
76
SER
88
D
ALA
89
n
77
ALA
89
D
THR
90
n
78
THR
90
D
THR
91
n
79
THR
91
D
TRP
92
n
80
TRP
92
D
SER
93
n
81
SER
93
D
GLY
94
n
82
GLY
94
D
GLN
95
n
83
GLN
95
D
TYR
96
n
84
TYR
96
D
VAL
97
n
85
VAL
97
D
GLY
98
n
86
GLY
98
D
GLY
99
n
87
GLY
99
D
ALA
100
n
88
ALA
100
D
GLU
101
n
89
GLU
101
D
ALA
102
n
90
ALA
102
D
ARG
103
n
91
ARG
103
D
ILE
104
n
92
ILE
104
D
ASN
105
n
93
ASN
105
D
THR
106
n
94
THR
106
D
GLN
107
n
95
GLN
107
D
TRP
108
n
96
TRP
108
D
LEU
109
n
97
LEU
109
D
LEU
110
n
98
LEU
110
D
THR
111
n
99
THR
111
D
SER
112
n
100
SER
112
D
GLY
113
n
101
GLY
113
D
THR
114
n
102
THR
114
D
THR
115
n
103
THR
115
D
GLU
116
n
104
GLU
116
D
ALA
117
n
105
ALA
117
D
ASN
118
n
106
ASN
118
D
ALA
119
n
107
ALA
119
D
TRP
120
n
108
TRP
120
D
LYS
121
n
109
LYS
121
D
SER
122
n
110
SER
122
D
THR
123
n
111
THR
123
D
LEU
124
n
112
LEU
124
D
VAL
125
n
113
VAL
125
D
GLY
126
n
114
GLY
126
D
HIS
127
n
115
HIS
127
D
ASP
128
n
116
ASP
128
D
THR
129
n
117
THR
129
D
PHE
130
n
118
PHE
130
D
THR
131
n
119
THR
131
D
LYS
132
n
120
LYS
132
D
VAL
133
n
121
VAL
133
D
LYS
134
n
122
LYS
134
D
n
123
135
D
n
124
136
D
n
125
137
D
n
126
138
D
n
127
139
D
author_and_software_defined_assembly
PISA
4
tetrameric
8500
-54
20610
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
TRP
21
A
N
TRP
9
A
O
PHE
29
A
O
PHE
17
A
N
THR
28
A
N
THR
16
A
O
ILE
44
A
O
ILE
32
A
N
TYR
43
A
N
TYR
31
A
O
TYR
54
A
O
TYR
42
A
N
THR
57
A
N
THR
45
A
O
THR
76
A
O
THR
64
A
N
VAL
77
A
N
VAL
65
A
O
THR
90
A
O
THR
78
A
N
SER
93
A
N
SER
81
A
O
GLN
107
A
O
GLN
95
A
N
TRP
108
A
N
TRP
96
A
O
GLY
126
A
O
GLY
114
A
O
THR
131
A
O
THR
119
A
N
TYR
22
A
N
TYR
10
B
N
GLY
19
B
N
GLY
7
B
O
VAL
31
B
O
VAL
19
B
N
THR
28
B
N
THR
16
B
O
ILE
44
B
O
ILE
32
B
N
TYR
43
B
N
TYR
31
B
O
TYR
54
B
O
TYR
42
B
N
THR
57
B
N
THR
45
B
O
THR
76
B
O
THR
64
B
N
VAL
77
B
N
VAL
65
B
O
THR
90
B
O
THR
78
B
N
SER
93
B
N
SER
81
B
O
GLN
107
B
O
GLN
95
B
N
THR
106
B
N
THR
94
B
O
ASP
128
B
O
ASP
116
B
O
THR
131
B
O
THR
119
B
N
TYR
22
B
N
TYR
10
C
N
GLY
19
C
N
GLY
7
C
O
VAL
31
C
O
VAL
19
C
N
THR
28
C
N
THR
16
C
O
ILE
44
C
O
ILE
32
C
N
TYR
43
C
N
TYR
31
C
O
TYR
54
C
O
TYR
42
C
N
THR
57
C
N
THR
45
C
O
THR
76
C
O
THR
64
C
N
THR
71
C
N
THR
59
C
O
TYR
96
C
O
TYR
84
C
N
VAL
97
C
N
VAL
85
C
O
ARG
103
C
O
ARG
91
C
N
TRP
108
C
N
TRP
96
C
O
GLY
126
C
O
GLY
114
C
O
THR
131
C
O
THR
119
C
N
TYR
22
C
N
TYR
10
D
N
TRP
21
D
N
TRP
9
D
O
PHE
29
D
O
PHE
17
D
N
ILE
30
D
N
ILE
18
D
O
THR
42
D
O
THR
30
D
N
TYR
43
D
N
TYR
31
D
O
TYR
54
D
O
TYR
42
D
N
THR
57
D
N
THR
45
D
O
THR
76
D
O
THR
64
D
N
VAL
77
D
N
VAL
65
D
O
THR
90
D
O
THR
78
D
N
SER
93
D
N
SER
81
D
O
GLN
107
D
O
GLN
95
D
N
LEU
110
D
N
LEU
98
D
O
LEU
124
D
O
LEU
112
D
O
THR
131
D
O
THR
119
D
N
TYR
22
D
N
TYR
10
1
A
MET
13
A
MET
1
1
Y
1
A
GLU
14
A
GLU
2
1
Y
1
A
ALA
15
A
ALA
3
1
Y
1
A
SER
136
A
SER
124
1
Y
1
A
ALA
137
A
ALA
125
1
Y
1
A
ALA
138
A
ALA
126
1
Y
1
A
SER
139
A
SER
127
1
Y
1
B
MET
13
B
MET
1
1
Y
1
B
GLU
14
B
GLU
2
1
Y
1
B
PRO
135
B
PRO
123
1
Y
1
B
SER
136
B
SER
124
1
Y
1
B
ALA
137
B
ALA
125
1
Y
1
B
ALA
138
B
ALA
126
1
Y
1
B
SER
139
B
SER
127
1
Y
1
C
MET
13
C
MET
1
1
Y
1
C
GLU
14
C
GLU
2
1
Y
1
C
ALA
15
C
ALA
3
1
Y
1
C
PRO
135
C
PRO
123
1
Y
1
C
SER
136
C
SER
124
1
Y
1
C
ALA
137
C
ALA
125
1
Y
1
C
ALA
138
C
ALA
126
1
Y
1
C
SER
139
C
SER
127
1
Y
1
D
MET
13
D
MET
1
1
Y
1
D
GLU
14
D
GLU
2
1
Y
1
D
ALA
15
D
ALA
3
1
Y
1
D
PRO
135
D
PRO
123
1
Y
1
D
SER
136
D
SER
124
1
Y
1
D
ALA
137
D
ALA
125
1
Y
1
D
ALA
138
D
ALA
126
1
Y
1
D
SER
139
D
SER
127
1
Y
1
B
B
ND2
OE1
ASN
GLU
49
51
1.87
1
C
C
O
O
HOH
HOH
192
196
1.99
1
B
B
OH
O
TYR
HOH
43
185
2.01
1
B
C
O
O
HOH
HOH
190
188
2.08
1
5.89
0.90
118.30
124.19
A
A
A
CB
CG
OD2
ASP
ASP
ASP
36
36
36
N
1
-5.70
0.90
118.30
112.60
A
A
A
CB
CG
OD1
ASP
ASP
ASP
128
128
128
N
1
12.44
0.90
118.30
130.74
A
A
A
CB
CG
OD2
ASP
ASP
ASP
128
128
128
N
1
-9.75
1.20
123.30
113.55
B
B
B
OE1
CD
OE2
GLU
GLU
GLU
51
51
51
N
1
-3.04
0.50
120.30
117.26
B
B
B
NE
CZ
NH2
ARG
ARG
ARG
53
53
53
N
1
3.83
0.60
121.00
124.83
B
B
B
CB
CG
CD2
TYR
TYR
TYR
60
60
60
N
1
-4.86
0.50
120.30
115.44
B
B
B
NE
CZ
NH2
ARG
ARG
ARG
84
84
84
N
1
11.87
1.90
113.70
125.57
B
B
B
CA
CB
CG
TRP
TRP
TRP
92
92
92
N
1
6.45
0.90
118.30
124.75
C
C
C
CB
CG
OD2
ASP
ASP
ASP
36
36
36
N
1
-21.12
2.30
110.00
88.88
C
C
C
OG1
CB
CG2
THR
THR
THR
42
42
42
N
1
7.23
0.90
118.30
125.53
C
C
C
CB
CG
OD2
ASP
ASP
ASP
67
67
67
N
1
6.41
0.90
118.30
124.71
D
D
D
CB
CG
OD1
ASP
ASP
ASP
61
61
61
N
1
B
B
CB
CG
TRP
TRP
92
92
-0.115
0.018
1.498
1.383
N
1
A
B
O
NH1
ASN
ARG
82
47
2.14
1_555
1_556
1
B
TRP
79
-85.68
49.30
1
B
GLU
101
-113.15
58.77
1
C
ALA
46
-37.42
-38.88
1
C
GLU
101
-98.98
49.60
1
D
TRP
79
-83.75
49.81
1
D
ASN
81
-134.87
-159.16
1
D
GLU
101
77.46
48.27
23.310
-0.72
0.00
0.02
0.98
0.00
-0.26
0.2276000
0.1911000
0.1929000
1.70
20.52
2387
45559
5.0
93.85
3.252
0.109
RANDOM
1
0
FOURIER SYNTHESIS
0.119
0.116
1SWU
Engh & Huber
1.70
20.52
195
3775
0
0
3580
0.018
0.021
2.548
1.886
0.4400000
0.4000000
1.75
142
3245
89.47
1.7
20.52
1KL4
48419
-3.000
0.0070000
1
25.9
3.7
93.8
1.70
1.76
2.7
4604
0.5530000
3.44
89.7
refinement
CNS
refinement
REFMAC
data reduction
DENZO
data scaling
SCALEPACK
phasing
CNS
AN ENGINEERED STREPTAVIDIN WITH IMPROVED AFFINITY FOR THE STREP-TAG II PEPTIDE : apo-SAM2
1
N
N
1
N
N
1
N
N
1
N
N
2
N
N
2
N
N
2
N
N
2
N
N
the biological assembly is one of the tetramers in the asymmetric unit
A
ASN
49
A
ASN
37
HELX_P
A
GLU
51
A
GLU
39
5
1
3
A
THR
115
A
THR
103
HELX_P
A
LYS
121
A
LYS
109
5
2
7
B
ASN
49
B
ASN
37
HELX_P
B
GLU
51
B
GLU
39
5
3
3
B
THR
115
B
THR
103
HELX_P
B
LYS
121
B
LYS
109
5
4
7
C
ASN
49
C
ASN
37
HELX_P
C
GLU
51
C
GLU
39
5
5
3
C
THR
115
C
THR
103
HELX_P
C
LYS
121
C
LYS
109
5
6
7
D
ASN
49
D
ASN
37
HELX_P
D
GLU
51
D
GLU
39
5
7
3
D
THR
115
D
THR
103
HELX_P
D
LYS
121
D
LYS
109
5
8
7
PEPTIDE BINDING PROTEIN
BIOTIN, PROTEIN ENGINEERING, STREP-TAG, STREPTAVIDIN, PEPTIDE BINDING PROTEIN
SAV_STRAV
UNP
1
38
P22629
EAGITGTWYNQLGSTFIVTAGADGALTGTYESAVGNAESRYVLTGRYDSAPATDGSGTALGWTVAWKNNYRNAHSATTWS
GQYVGGAEARINTQWLLTSGTTEANAWKSTLVGHDTFTKVKPSAAS
38
163
1KL4
14
139
P22629
A
1
2
127
38
163
1KL4
14
139
P22629
B
1
2
127
38
163
1KL4
14
139
P22629
C
1
2
127
38
163
1KL4
14
139
P22629
D
1
2
127
1
initiating methionine
MET
13
1KL4
A
P22629
UNP
1
1
GLU
engineered mutation
ILE
44
1KL4
A
P22629
UNP
68
32
1
SER
engineered mutation
GLY
45
1KL4
A
P22629
UNP
69
33
1
VAL
engineered mutation
ARG
47
1KL4
A
P22629
UNP
71
35
2
initiating methionine
MET
13
1KL4
B
P22629
UNP
1
2
GLU
engineered mutation
ILE
44
1KL4
B
P22629
UNP
68
32
2
SER
engineered mutation
GLY
45
1KL4
B
P22629
UNP
69
33
2
VAL
engineered mutation
ARG
47
1KL4
B
P22629
UNP
71
35
3
initiating methionine
MET
13
1KL4
C
P22629
UNP
1
3
GLU
engineered mutation
ILE
44
1KL4
C
P22629
UNP
68
32
3
SER
engineered mutation
GLY
45
1KL4
C
P22629
UNP
69
33
3
VAL
engineered mutation
ARG
47
1KL4
C
P22629
UNP
71
35
4
initiating methionine
MET
13
1KL4
D
P22629
UNP
1
4
GLU
engineered mutation
ILE
44
1KL4
D
P22629
UNP
68
32
4
SER
engineered mutation
GLY
45
1KL4
D
P22629
UNP
69
33
4
VAL
engineered mutation
ARG
47
1KL4
D
P22629
UNP
71
35
9
9
9
9
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
A
GLY
19
A
GLY
7
A
ASN
23
A
ASN
11
A
THR
28
A
THR
16
A
ALA
33
A
ALA
21
A
ALA
38
A
ALA
26
A
ILE
44
A
ILE
32
A
ARG
53
A
ARG
41
A
TYR
60
A
TYR
48
A
THR
71
A
THR
59
A
LYS
80
A
LYS
68
A
ASN
85
A
ASN
73
A
VAL
97
A
VAL
85
A
ARG
103
A
ARG
91
A
SER
112
A
SER
100
A
THR
123
A
THR
111
A
THR
131
A
THR
119
A
GLY
19
A
GLY
7
A
ASN
23
A
ASN
11
B
GLY
19
B
GLY
7
B
TYR
22
B
TYR
10
B
THR
28
B
THR
16
B
ALA
33
B
ALA
21
B
ALA
38
B
ALA
26
B
ILE
44
B
ILE
32
B
ARG
53
B
ARG
41
B
TYR
60
B
TYR
48
B
THR
71
B
THR
59
B
LYS
80
B
LYS
68
B
ASN
85
B
ASN
73
B
VAL
97
B
VAL
85
B
ARG
103
B
ARG
91
B
SER
112
B
SER
100
B
THR
123
B
THR
111
B
THR
131
B
THR
119
B
GLY
19
B
GLY
7
B
TYR
22
B
TYR
10
C
GLY
19
C
GLY
7
C
TYR
22
C
TYR
10
C
THR
28
C
THR
16
C
ALA
33
C
ALA
21
C
ALA
38
C
ALA
26
C
ILE
44
C
ILE
32
C
ARG
53
C
ARG
41
C
TYR
60
C
TYR
48
C
THR
71
C
THR
59
C
LYS
80
C
LYS
68
C
ASN
85
C
ASN
73
C
VAL
97
C
VAL
85
C
ARG
103
C
ARG
91
C
SER
112
C
SER
100
C
THR
123
C
THR
111
C
THR
131
C
THR
119
C
GLY
19
C
GLY
7
C
TYR
22
C
TYR
10
D
GLY
19
D
GLY
7
D
ASN
23
D
ASN
11
D
THR
28
D
THR
16
D
ALA
33
D
ALA
21
D
ALA
38
D
ALA
26
D
ILE
44
D
ILE
32
D
ARG
53
D
ARG
41
D
TYR
60
D
TYR
48
D
THR
71
D
THR
59
D
LYS
80
D
LYS
68
D
ASN
85
D
ASN
73
D
VAL
97
D
VAL
85
D
ARG
103
D
ARG
91
D
SER
112
D
SER
100
D
THR
123
D
THR
111
D
THR
131
D
THR
119
D
GLY
19
D
GLY
7
D
ASN
23
D
ASN
11
4
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