0.022730
-0.000000
0.000000
0.000000
0.018971
0.000000
0.000000
0.000000
0.012787
0.00000
0.00000
0.00000
Joshi, M.D.
Sidhu, G.
Nielsen, J.E.
Brayer, G.D.
Withers, S.G.
McIntosh, L.P.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
4
90
90
90
43.994
52.711
78.202
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
Biochemistry
BICHAW
0033
0006-2960
40
10115
10139
10.1021/bi0105429
11513590
Dissecting the electrostatic interactions and pH-dependent activity of a family 11 glycosidase.
2001
10.2210/pdb1hv1/pdb
pdb_00001hv1
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
1
IMAGE PLATE
1999-10-01
RIGAKU RAXIS IIC
graphite
SINGLE WAVELENGTH
M
x-ray
1
1.5418
1.0
1.5418
ROTATING ANODE
RIGAKU RU300
20351.955
ENDO-1,4-BETA-XYLANASE
3.2.1.8
Q127A_BCX
Q127A
1
man
polymer
18.015
water
177
nat
water
XYLANASE, 1,4-BETA-D-XYLAN XYLANOHYDROLASE
E.C.3.2.1.8
no
no
ASTDYWQNWTDGGGIVNAVNGSGGNYSVNWSNTGNFVVGKGWTTGSPFRTINYNAGVWAPNGNGYLTLYGWTRSPLIEYY
VVDSWGTYRPTGTYKGTVKSDGGTYDIYTTTRYNAPSIDGDRTTFTAYWSVRQSKRPTGSNATITFTNHVNAWKSHGMNL
GSNWAYQVMATEGYQSSGSSNVTVW
ASTDYWQNWTDGGGIVNAVNGSGGNYSVNWSNTGNFVVGKGWTTGSPFRTINYNAGVWAPNGNGYLTLYGWTRSPLIEYY
VVDSWGTYRPTGTYKGTVKSDGGTYDIYTTTRYNAPSIDGDRTTFTAYWSVRQSKRPTGSNATITFTNHVNAWKSHGMNL
GSNWAYQVMATEGYQSSGSSNVTVW
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
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
Bacillus
Escherichia
Escherichia coli
sample
1397
Bacillus circulans
511693
Escherichia coli BL21
BL21
PLASMID
PCW
1
2.23
44.77
VAPOR DIFFUSION, HANGING DROP
7.5
ammonimu sulphate, sodium chloride, TRIS, pH 7.5, VAPOR DIFFUSION, HANGING DROP at 298 K
298
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
2001-09-14
1
1
2008-04-27
1
2
2011-07-13
1
3
2021-10-27
1
4
2023-08-09
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_struct_ref_seq_dif.details
Xylanase (Inactive Form, Endo-b-1,4-Xylanase) (E.C.3.2.1.8) Mutant With Glu 172 Replaced By Cys (E172C) Complexed With Xylobiose
wildtype protein with 2-Deoxy-2-Fluoro-Xylobiose Covalently Bonded To Glu 78 Oe2
N35D Mutant of BCX
N35D Mutant of BCX with 2-Deoxy-2-Fluoro-Xylobiose Covalently Bonded To Glu 78 Oe2
RCSB
Y
RCSB
2001-01-05
REL
REL
HOH
water
1BCX
PDB ENTRY 1BCX
PDB
experimental model
HOH
200
2
HOH
HOH
200
A
HOH
201
2
HOH
HOH
201
A
HOH
202
2
HOH
HOH
202
A
HOH
203
2
HOH
HOH
203
A
HOH
204
2
HOH
HOH
204
A
HOH
205
2
HOH
HOH
205
A
HOH
206
2
HOH
HOH
206
A
HOH
207
2
HOH
HOH
207
A
HOH
208
2
HOH
HOH
208
A
HOH
209
2
HOH
HOH
209
A
HOH
210
2
HOH
HOH
210
A
HOH
211
2
HOH
HOH
211
A
HOH
212
2
HOH
HOH
212
A
HOH
213
2
HOH
HOH
213
A
HOH
214
2
HOH
HOH
214
A
HOH
215
2
HOH
HOH
215
A
HOH
216
2
HOH
HOH
216
A
HOH
217
2
HOH
HOH
217
A
HOH
218
2
HOH
HOH
218
A
HOH
219
2
HOH
HOH
219
A
HOH
220
2
HOH
HOH
220
A
HOH
221
2
HOH
HOH
221
A
HOH
222
2
HOH
HOH
222
A
HOH
223
2
HOH
HOH
223
A
HOH
224
2
HOH
HOH
224
A
HOH
225
2
HOH
HOH
225
A
HOH
226
2
HOH
HOH
226
A
HOH
227
2
HOH
HOH
227
A
HOH
228
2
HOH
HOH
228
A
HOH
229
2
HOH
HOH
229
A
HOH
230
2
HOH
HOH
230
A
HOH
231
2
HOH
HOH
231
A
HOH
232
2
HOH
HOH
232
A
HOH
233
2
HOH
HOH
233
A
HOH
234
2
HOH
HOH
234
A
HOH
235
2
HOH
HOH
235
A
HOH
236
2
HOH
HOH
236
A
HOH
237
2
HOH
HOH
237
A
HOH
238
2
HOH
HOH
238
A
HOH
239
2
HOH
HOH
239
A
HOH
240
2
HOH
HOH
240
A
HOH
241
2
HOH
HOH
241
A
HOH
242
2
HOH
HOH
242
A
HOH
243
2
HOH
HOH
243
A
HOH
244
2
HOH
HOH
244
A
HOH
245
2
HOH
HOH
245
A
HOH
246
2
HOH
HOH
246
A
HOH
247
2
HOH
HOH
247
A
HOH
248
2
HOH
HOH
248
A
HOH
249
2
HOH
HOH
249
A
HOH
250
2
HOH
HOH
250
A
HOH
251
2
HOH
HOH
251
A
HOH
252
2
HOH
HOH
252
A
HOH
253
2
HOH
HOH
253
A
HOH
254
2
HOH
HOH
254
A
HOH
255
2
HOH
HOH
255
A
HOH
256
2
HOH
HOH
256
A
HOH
257
2
HOH
HOH
257
A
HOH
258
2
HOH
HOH
258
A
HOH
259
2
HOH
HOH
259
A
HOH
260
2
HOH
HOH
260
A
HOH
261
2
HOH
HOH
261
A
HOH
262
2
HOH
HOH
262
A
HOH
263
2
HOH
HOH
263
A
HOH
264
2
HOH
HOH
264
A
HOH
265
2
HOH
HOH
265
A
HOH
266
2
HOH
HOH
266
A
HOH
267
2
HOH
HOH
267
A
HOH
268
2
HOH
HOH
268
A
HOH
269
2
HOH
HOH
269
A
HOH
270
2
HOH
HOH
270
A
HOH
271
2
HOH
HOH
271
A
HOH
272
2
HOH
HOH
272
A
HOH
273
2
HOH
HOH
273
A
HOH
274
2
HOH
HOH
274
A
HOH
275
2
HOH
HOH
275
A
HOH
276
2
HOH
HOH
276
A
HOH
277
2
HOH
HOH
277
A
HOH
278
2
HOH
HOH
278
A
HOH
279
2
HOH
HOH
279
A
HOH
280
2
HOH
HOH
280
A
HOH
281
2
HOH
HOH
281
A
HOH
282
2
HOH
HOH
282
A
HOH
283
2
HOH
HOH
283
A
HOH
284
2
HOH
HOH
284
A
HOH
285
2
HOH
HOH
285
A
HOH
286
2
HOH
HOH
286
A
HOH
287
2
HOH
HOH
287
A
HOH
288
2
HOH
HOH
288
A
HOH
289
2
HOH
HOH
289
A
HOH
290
2
HOH
HOH
290
A
HOH
291
2
HOH
HOH
291
A
HOH
292
2
HOH
HOH
292
A
HOH
293
2
HOH
HOH
293
A
HOH
294
2
HOH
HOH
294
A
HOH
295
2
HOH
HOH
295
A
HOH
296
2
HOH
HOH
296
A
HOH
297
2
HOH
HOH
297
A
HOH
298
2
HOH
HOH
298
A
HOH
299
2
HOH
HOH
299
A
HOH
300
2
HOH
HOH
300
A
HOH
301
2
HOH
HOH
301
A
HOH
302
2
HOH
HOH
302
A
HOH
303
2
HOH
HOH
303
A
HOH
304
2
HOH
HOH
304
A
HOH
305
2
HOH
HOH
305
A
HOH
306
2
HOH
HOH
306
A
HOH
307
2
HOH
HOH
307
A
HOH
308
2
HOH
HOH
308
A
HOH
309
2
HOH
HOH
309
A
HOH
310
2
HOH
HOH
310
A
HOH
311
2
HOH
HOH
311
A
HOH
312
2
HOH
HOH
312
A
HOH
313
2
HOH
HOH
313
A
HOH
314
2
HOH
HOH
314
A
HOH
315
2
HOH
HOH
315
A
HOH
316
2
HOH
HOH
316
A
HOH
317
2
HOH
HOH
317
A
HOH
318
2
HOH
HOH
318
A
HOH
319
2
HOH
HOH
319
A
HOH
320
2
HOH
HOH
320
A
HOH
321
2
HOH
HOH
321
A
HOH
322
2
HOH
HOH
322
A
HOH
323
2
HOH
HOH
323
A
HOH
324
2
HOH
HOH
324
A
HOH
325
2
HOH
HOH
325
A
HOH
326
2
HOH
HOH
326
A
HOH
327
2
HOH
HOH
327
A
HOH
328
2
HOH
HOH
328
A
HOH
329
2
HOH
HOH
329
A
HOH
330
2
HOH
HOH
330
A
HOH
331
2
HOH
HOH
331
A
HOH
332
2
HOH
HOH
332
A
HOH
333
2
HOH
HOH
333
A
HOH
334
2
HOH
HOH
334
A
HOH
335
2
HOH
HOH
335
A
HOH
336
2
HOH
HOH
336
A
HOH
337
2
HOH
HOH
337
A
HOH
338
2
HOH
HOH
338
A
HOH
339
2
HOH
HOH
339
A
HOH
340
2
HOH
HOH
340
A
HOH
341
2
HOH
HOH
341
A
HOH
342
2
HOH
HOH
342
A
HOH
343
2
HOH
HOH
343
A
HOH
344
2
HOH
HOH
344
A
HOH
345
2
HOH
HOH
345
A
HOH
346
2
HOH
HOH
346
A
HOH
347
2
HOH
HOH
347
A
HOH
348
2
HOH
HOH
348
A
HOH
349
2
HOH
HOH
349
A
HOH
350
2
HOH
HOH
350
A
HOH
351
2
HOH
HOH
351
A
HOH
352
2
HOH
HOH
352
A
HOH
353
2
HOH
HOH
353
A
HOH
354
2
HOH
HOH
354
A
HOH
355
2
HOH
HOH
355
A
HOH
356
2
HOH
HOH
356
A
HOH
357
2
HOH
HOH
357
A
HOH
358
2
HOH
HOH
358
A
HOH
359
2
HOH
HOH
359
A
HOH
360
2
HOH
HOH
360
A
HOH
361
2
HOH
HOH
361
A
HOH
362
2
HOH
HOH
362
A
HOH
363
2
HOH
HOH
363
A
HOH
364
2
HOH
HOH
364
A
HOH
365
2
HOH
HOH
365
A
HOH
366
2
HOH
HOH
366
A
HOH
367
2
HOH
HOH
367
A
HOH
368
2
HOH
HOH
368
A
HOH
369
2
HOH
HOH
369
A
HOH
370
2
HOH
HOH
370
A
HOH
371
2
HOH
HOH
371
A
HOH
372
2
HOH
HOH
372
A
HOH
373
2
HOH
HOH
373
A
HOH
374
2
HOH
HOH
374
A
HOH
375
2
HOH
HOH
375
A
HOH
376
2
HOH
HOH
376
A
ALA
1
n
1
ALA
1
A
SER
2
n
2
SER
2
A
THR
3
n
3
THR
3
A
ASP
4
n
4
ASP
4
A
TYR
5
n
5
TYR
5
A
TRP
6
n
6
TRP
6
A
GLN
7
n
7
GLN
7
A
ASN
8
n
8
ASN
8
A
TRP
9
n
9
TRP
9
A
THR
10
n
10
THR
10
A
ASP
11
n
11
ASP
11
A
GLY
12
n
12
GLY
12
A
GLY
13
n
13
GLY
13
A
GLY
14
n
14
GLY
14
A
ILE
15
n
15
ILE
15
A
VAL
16
n
16
VAL
16
A
ASN
17
n
17
ASN
17
A
ALA
18
n
18
ALA
18
A
VAL
19
n
19
VAL
19
A
ASN
20
n
20
ASN
20
A
GLY
21
n
21
GLY
21
A
SER
22
n
22
SER
22
A
GLY
23
n
23
GLY
23
A
GLY
24
n
24
GLY
24
A
ASN
25
n
25
ASN
25
A
TYR
26
n
26
TYR
26
A
SER
27
n
27
SER
27
A
VAL
28
n
28
VAL
28
A
ASN
29
n
29
ASN
29
A
TRP
30
n
30
TRP
30
A
SER
31
n
31
SER
31
A
ASN
32
n
32
ASN
32
A
THR
33
n
33
THR
33
A
GLY
34
n
34
GLY
34
A
ASN
35
n
35
ASN
35
A
PHE
36
n
36
PHE
36
A
VAL
37
n
37
VAL
37
A
VAL
38
n
38
VAL
38
A
GLY
39
n
39
GLY
39
A
LYS
40
n
40
LYS
40
A
GLY
41
n
41
GLY
41
A
TRP
42
n
42
TRP
42
A
THR
43
n
43
THR
43
A
THR
44
n
44
THR
44
A
GLY
45
n
45
GLY
45
A
SER
46
n
46
SER
46
A
PRO
47
n
47
PRO
47
A
PHE
48
n
48
PHE
48
A
ARG
49
n
49
ARG
49
A
THR
50
n
50
THR
50
A
ILE
51
n
51
ILE
51
A
ASN
52
n
52
ASN
52
A
TYR
53
n
53
TYR
53
A
ASN
54
n
54
ASN
54
A
ALA
55
n
55
ALA
55
A
GLY
56
n
56
GLY
56
A
VAL
57
n
57
VAL
57
A
TRP
58
n
58
TRP
58
A
ALA
59
n
59
ALA
59
A
PRO
60
n
60
PRO
60
A
ASN
61
n
61
ASN
61
A
GLY
62
n
62
GLY
62
A
ASN
63
n
63
ASN
63
A
GLY
64
n
64
GLY
64
A
TYR
65
n
65
TYR
65
A
LEU
66
n
66
LEU
66
A
THR
67
n
67
THR
67
A
LEU
68
n
68
LEU
68
A
TYR
69
n
69
TYR
69
A
GLY
70
n
70
GLY
70
A
TRP
71
n
71
TRP
71
A
THR
72
n
72
THR
72
A
ARG
73
n
73
ARG
73
A
SER
74
n
74
SER
74
A
PRO
75
n
75
PRO
75
A
LEU
76
n
76
LEU
76
A
ILE
77
n
77
ILE
77
A
GLU
78
n
78
GLU
78
A
TYR
79
n
79
TYR
79
A
TYR
80
n
80
TYR
80
A
VAL
81
n
81
VAL
81
A
VAL
82
n
82
VAL
82
A
ASP
83
n
83
ASP
83
A
SER
84
n
84
SER
84
A
TRP
85
n
85
TRP
85
A
GLY
86
n
86
GLY
86
A
THR
87
n
87
THR
87
A
TYR
88
n
88
TYR
88
A
ARG
89
n
89
ARG
89
A
PRO
90
n
90
PRO
90
A
THR
91
n
91
THR
91
A
GLY
92
n
92
GLY
92
A
THR
93
n
93
THR
93
A
TYR
94
n
94
TYR
94
A
LYS
95
n
95
LYS
95
A
GLY
96
n
96
GLY
96
A
THR
97
n
97
THR
97
A
VAL
98
n
98
VAL
98
A
LYS
99
n
99
LYS
99
A
SER
100
n
100
SER
100
A
ASP
101
n
101
ASP
101
A
GLY
102
n
102
GLY
102
A
GLY
103
n
103
GLY
103
A
THR
104
n
104
THR
104
A
TYR
105
n
105
TYR
105
A
ASP
106
n
106
ASP
106
A
ILE
107
n
107
ILE
107
A
TYR
108
n
108
TYR
108
A
THR
109
n
109
THR
109
A
THR
110
n
110
THR
110
A
THR
111
n
111
THR
111
A
ARG
112
n
112
ARG
112
A
TYR
113
n
113
TYR
113
A
ASN
114
n
114
ASN
114
A
ALA
115
n
115
ALA
115
A
PRO
116
n
116
PRO
116
A
SER
117
n
117
SER
117
A
ILE
118
n
118
ILE
118
A
ASP
119
n
119
ASP
119
A
GLY
120
n
120
GLY
120
A
ASP
121
n
121
ASP
121
A
ARG
122
n
122
ARG
122
A
THR
123
n
123
THR
123
A
THR
124
n
124
THR
124
A
PHE
125
n
125
PHE
125
A
THR
126
n
126
THR
126
A
ALA
127
n
127
ALA
127
A
TYR
128
n
128
TYR
128
A
TRP
129
n
129
TRP
129
A
SER
130
n
130
SER
130
A
VAL
131
n
131
VAL
131
A
ARG
132
n
132
ARG
132
A
GLN
133
n
133
GLN
133
A
SER
134
n
134
SER
134
A
LYS
135
n
135
LYS
135
A
ARG
136
n
136
ARG
136
A
PRO
137
n
137
PRO
137
A
THR
138
n
138
THR
138
A
GLY
139
n
139
GLY
139
A
SER
140
n
140
SER
140
A
ASN
141
n
141
ASN
141
A
ALA
142
n
142
ALA
142
A
THR
143
n
143
THR
143
A
ILE
144
n
144
ILE
144
A
THR
145
n
145
THR
145
A
PHE
146
n
146
PHE
146
A
THR
147
n
147
THR
147
A
ASN
148
n
148
ASN
148
A
HIS
149
n
149
HIS
149
A
VAL
150
n
150
VAL
150
A
ASN
151
n
151
ASN
151
A
ALA
152
n
152
ALA
152
A
TRP
153
n
153
TRP
153
A
LYS
154
n
154
LYS
154
A
SER
155
n
155
SER
155
A
HIS
156
n
156
HIS
156
A
GLY
157
n
157
GLY
157
A
MET
158
n
158
MET
158
A
ASN
159
n
159
ASN
159
A
LEU
160
n
160
LEU
160
A
GLY
161
n
161
GLY
161
A
SER
162
n
162
SER
162
A
ASN
163
n
163
ASN
163
A
TRP
164
n
164
TRP
164
A
ALA
165
n
165
ALA
165
A
TYR
166
n
166
TYR
166
A
GLN
167
n
167
GLN
167
A
VAL
168
n
168
VAL
168
A
MET
169
n
169
MET
169
A
ALA
170
n
170
ALA
170
A
THR
171
n
171
THR
171
A
GLU
172
n
172
GLU
172
A
GLY
173
n
173
GLY
173
A
TYR
174
n
174
TYR
174
A
GLN
175
n
175
GLN
175
A
SER
176
n
176
SER
176
A
SER
177
n
177
SER
177
A
GLY
178
n
178
GLY
178
A
SER
179
n
179
SER
179
A
SER
180
n
180
SER
180
A
ASN
181
n
181
ASN
181
A
VAL
182
n
182
VAL
182
A
THR
183
n
183
THR
183
A
VAL
184
n
184
VAL
184
A
TRP
185
n
185
TRP
185
A
author_defined_assembly
1
monomeric
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
O
TRP
9
A
O
TRP
9
A
N
VAL
37
A
N
VAL
37
A
N
TRP
42
A
N
TRP
42
A
O
GLN
167
A
O
GLN
167
A
O
GLU
172
A
O
GLU
172
A
N
TYR
65
A
N
TYR
65
A
O
THR
72
A
O
THR
72
A
N
ILE
77
A
N
ILE
77
A
N
GLU
78
A
N
GLU
78
A
O
THR
126
A
O
THR
126
A
O
VAL
131
A
O
VAL
131
A
N
ASP
106
A
N
ASP
106
A
O
THR
109
A
O
THR
109
A
N
THR
93
A
N
THR
93
A
N
VAL
19
A
N
VAL
19
A
O
SER
27
A
O
SER
27
A
O
TRP
30
A
O
TRP
30
A
N
GLY
178
A
N
GLY
178
A
O
TRP
185
A
O
TRP
185
A
N
ASN
52
A
N
ASN
52
A
O
TYR
53
A
O
TYR
53
A
N
ALA
142
A
N
ALA
142
1
-15.33
2.50
113.10
97.77
A
A
A
N
CA
C
GLY
GLY
GLY
34
34
34
N
1
A
ASN
61
-109.39
54.79
1
A
ASP
121
57.09
-170.74
1
A
ALA
165
-99.47
-158.72
0.1640000
0.1640000
1.8
10
15042
15042
1
0
MOLECULAR REPLACEMENT
PDB ENTRY 1BCX
1.8
10
177
1621
0
0
1444
0.009
0.911
0.1640000
10
15042
95
1.80
50
1HV1
17548
0
0
0.0540000
1
21.8
9.0
0.1150000
1.80
1.88
model building
X-PLOR
refinement
X-PLOR
3.851
data reduction
DENZO
data scaling
SCALEPACK
phasing
X-PLOR
DISSECTING ELECTROSTATIC INTERACTIONS AND THE PH-DEPENDENT ACTIVITY OF A FAMILY 11 GLYCOSIDASE
1
N
N
2
N
N
A
PHE
146
A
PHE
146
HELX_P
A
HIS
156
A
HIS
156
1
1
11
HYDROLASE
beta sheet, hydrolase
A
SER
74
A
SER
74
1
A
PRO
75
A
PRO
75
0.49
XYNA_BACCI
UNP
1
29
P09850
ASTDYWQNWTDGGGIVNAVNGSGGNYSVNWSNTGNFVVGKGWTTGSPFRTINYNAGVWAPNGNGYLTLYGWTRSPLIEYY
VVDSWGTYRPTGTYKGTVKSDGGTYDIYTTTRYNAPSIDGDRTTFTQYWSVRQSKRPTGSNATITFTNHVNAWKSHGMNL
GSNWAYQVMATEGYQSSGSSNVTVW
29
213
1HV1
1
185
P09850
A
1
1
185
1
GLN
engineered mutation
ALA
127
1HV1
A
P09850
UNP
155
127
8
5
anti-parallel
anti-parallel
anti-parallel
anti-parallel
parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
A
TYR
5
A
TYR
5
A
THR
10
A
THR
10
A
ASN
35
A
ASN
35
A
TRP
42
A
TRP
42
A
ASN
163
A
ASN
163
A
TYR
174
A
TYR
174
A
GLY
64
A
GLY
64
A
ARG
73
A
ARG
73
A
ILE
77
A
ILE
77
A
TRP
85
A
TRP
85
A
ARG
122
A
ARG
122
A
ARG
132
A
ARG
132
A
GLY
103
A
GLY
103
A
PRO
116
A
PRO
116
A
THR
93
A
THR
93
A
SER
100
A
SER
100
A
ILE
15
A
ILE
15
A
ASN
20
A
ASN
20
A
ASN
25
A
ASN
25
A
SER
31
A
SER
31
A
SER
177
A
SER
177
A
TRP
185
A
TRP
185
A
THR
50
A
THR
50
A
ASN
61
A
ASN
61
A
ALA
142
A
ALA
142
A
THR
145
A
THR
145
19
orthorhombic
P 21 21 21