0.012225
0.000000
0.000000
0.000000
0.013298
0.000000
0.000000
0.000000
0.026954
0.00000
0.00000
0.00000
CIS PROLINE - PRO 30
CIS PROLINE - PRO 202
HET ATOM ZN IS ESSENTIAL METAL ION.
THE RESIDUES DEFINING THE CAT SITE CONSTITUTE THE CATALYTIC ACTIVE SITE OF THE ENZYME. INHIBITOR IOD ANION BINDS TO ESSENTIAL ZN ION AND RENDERS THE ENZYME INACTIVE.
THE SIDE CHAINS OF RESIDUES LYS 10, ARG 173 AND GLU 221 SHOW VERY POOR ELECTRON DENSITY IN THE FOURIER MAPS.
Kumar, V.
Kannan, K.K.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
4
90.00
90.00
90.00
81.800
75.200
37.100
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
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
I -1
126.904
IODIDE ION
non-polymer
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
Zn 2
65.409
ZINC ION
non-polymer
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
N
N
138
S
C
N
139
N
C
N
140
N
O
N
141
N
C
Y
142
N
C
Y
143
N
N
Y
144
N
C
Y
145
N
C
Y
146
N
N
N
147
N
O
N
148
N
H
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
O
N
159
N
H
N
160
N
H
N
161
N
N
N
162
S
C
N
163
N
C
N
164
N
O
N
165
S
C
N
166
N
C
N
167
N
C
N
168
N
C
N
169
N
O
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
I
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
N
Y
331
N
C
Y
332
N
C
Y
333
N
C
Y
334
N
C
Y
335
N
C
N
336
N
O
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
H
N
347
N
H
N
348
N
H
N
349
N
N
N
350
S
C
N
351
N
C
N
352
N
O
N
353
N
C
Y
354
N
C
Y
355
N
C
Y
356
N
C
Y
357
N
C
Y
358
N
C
Y
359
N
C
N
360
N
O
N
361
N
O
N
362
N
H
N
363
N
H
N
364
N
H
N
365
N
H
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
N
N
374
S
C
N
375
N
C
N
376
N
O
N
377
N
C
N
378
N
C
N
379
N
C
N
380
N
O
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
H
N
390
N
H
N
391
N
H
N
392
N
ZN
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
Y
322
N
sing
Y
323
N
sing
N
324
N
sing
Y
325
N
sing
Y
326
N
doub
N
327
N
sing
Y
328
N
doub
N
329
N
sing
Y
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
sing
N
337
N
sing
N
338
N
sing
N
339
N
sing
N
340
N
doub
N
341
N
sing
N
342
N
sing
N
343
N
sing
N
344
N
sing
Y
345
N
doub
Y
346
N
sing
Y
347
N
sing
N
348
N
sing
Y
349
N
doub
N
350
N
sing
Y
351
N
doub
N
352
N
sing
Y
353
N
sing
N
354
N
sing
N
355
N
sing
N
356
N
sing
N
357
N
sing
N
358
N
sing
N
359
N
sing
N
360
N
sing
N
361
N
sing
N
362
N
sing
N
363
N
sing
N
364
N
doub
N
365
N
sing
N
366
N
sing
N
367
N
sing
N
368
N
sing
N
369
N
sing
N
370
N
sing
N
371
N
sing
N
372
N
sing
N
373
N
sing
N
374
N
sing
N
375
N
sing
DK
Acta Crystallogr.,Sect.D
ABCRE6
0766
0907-4449
50
731
738
10.1107/S0907444994001873
15299369
Differences in anionic inhibition of human carbonic anhydrase I revealed from the structures of iodide and gold cyanide inhibitor complexes.
1994
DK
Acta Crystallogr.,Sect.A
ACACEQ
0621
0108-7673
43
21
Human Carbonic Anhydrase I-Iodide Complex: Structure and Function
1987
10.2210/pdb1huh/pdb
pdb_00001huh
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
1
x-ray
1
1.0
28774.988
CARBONIC ANHYDRASE I
4.2.1.1
1
man
polymer
65.409
ZINC ION
1
syn
non-polymer
126.904
IODIDE ION
5
syn
non-polymer
18.015
water
253
nat
water
no
no
ASPDWGYDDKNGPEQWSKLYPIANGNNQSPVDIKTSETKHDTSLKPISVSYNPATAKEIINVGHSFHVNFEDNDNRSVLK
GGPFSDSYRLFQFHFHWGSTNEHGSEHTVDGVKYSAELHVAHWNSAKYSSLAEAASKADGLAVIGVLMKVGEANPKLQKV
LDALQAIKTKGKRAPFTNFDPSTLLPSSLDFWTYPGSLTHPPLYESVTWIICKESISVSSEQLAQFRSLLSNVEGDNAVP
MQHNNRPTQPLKGRTVRASF
ASPDWGYDDKNGPEQWSKLYPIANGNNQSPVDIKTSETKHDTSLKPISVSYNPATAKEIINVGHSFHVNFEDNDNRSVLK
GGPFSDSYRLFQFHFHWGSTNEHGSEHTVDGVKYSAELHVAHWNSAKYSSLAEAASKADGLAVIGVLMKVGEANPKLQKV
LDALQAIKTKGKRAPFTNFDPSTLLPSSLDFWTYPGSLTHPPLYESVTWIICKESISVSSEQLAQFRSLLSNVEGDNAVP
MQHNNRPTQPLKGRTVRASF
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
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
human
Homo
sample
9606
Homo sapiens
1.98
37.93
pdbx_database_status
struct_conf
struct_conf_type
chem_comp_atom
chem_comp_bond
database_2
pdbx_struct_conn_angle
struct_conn
struct_site
repository
Initial release
Version format compliance
Version format compliance
Derived calculations
Other
Data collection
Database references
Derived calculations
1
0
1994-04-30
1
1
2008-03-03
1
2
2011-07-13
1
3
2017-11-29
1
4
2024-02-07
_pdbx_database_status.process_site
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_pdbx_struct_conn_angle.ptnr1_auth_comp_id
_pdbx_struct_conn_angle.ptnr1_auth_seq_id
_pdbx_struct_conn_angle.ptnr1_label_asym_id
_pdbx_struct_conn_angle.ptnr1_label_atom_id
_pdbx_struct_conn_angle.ptnr1_label_comp_id
_pdbx_struct_conn_angle.ptnr1_label_seq_id
_pdbx_struct_conn_angle.ptnr3_auth_comp_id
_pdbx_struct_conn_angle.ptnr3_auth_seq_id
_pdbx_struct_conn_angle.ptnr3_label_asym_id
_pdbx_struct_conn_angle.ptnr3_label_atom_id
_pdbx_struct_conn_angle.ptnr3_label_comp_id
_pdbx_struct_conn_angle.ptnr3_label_seq_id
_pdbx_struct_conn_angle.value
_struct_conn.pdbx_dist_value
_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_site.pdbx_auth_asym_id
_struct_site.pdbx_auth_comp_id
_struct_site.pdbx_auth_seq_id
Y
BNL
1993-10-28
REL
REL
ZN
ZINC ION
IOD
IODIDE ION
HOH
water
THE RESIDUES DEFINING THE CAT SITE CONSTITUTE THE CATALYTIC ACTIVE SITE OF THE ENZYME. INHIBITOR IOD ANION BINDS TO ESSENTIAL ZN ION AND RENDERS THE ENZYME INACTIVE.
HET ATOM ZN IS ESSENTIAL METAL ION.
ON THE BASIS OF HUMAN CARBONIC ANHYDRASE - BICARBONATE
COMPLEX STRUCTURE (VINAY KUMAR AND K.K. KANNAN,
UNPUBLISHED RESULTS) AND REFINED STRUCTURE OF THE TITLE
COMPOUND, THE FOLLOWING SEQUENCE MODIFICATION IN THE
NATIVE HUMAN CARBONIC ANHYDRASE ATOMIC MODEL (PDB IDENT
CODE 2CAB, VERSION OF 10/84) HAVE BEEN MADE IN THE
SUBMITTED ATOMIC MODEL.
SEQUENCE NUMBER 74 75
RESIDUE TYPE ASP ASN
THESE CHANGES ARE CONSISTENT WITH THE KNOWN CHEMICAL
SEQUENCE OF HUMAN CARBONIC ANHYDRASE I ENZYME.
ZN
261
2
ZN
ZN
261
A
IOD
520
3
IOD
IOD
520
A
IOD
521
3
IOD
IOD
521
A
IOD
522
3
IOD
IOD
522
A
IOD
523
3
IOD
IOD
523
A
IOD
524
3
IOD
IOD
524
A
HOH
262
4
HOH
HOH
262
A
HOH
263
4
HOH
HOH
263
A
HOH
264
4
HOH
HOH
264
A
HOH
265
4
HOH
HOH
265
A
HOH
266
4
HOH
HOH
266
A
HOH
267
4
HOH
HOH
267
A
HOH
268
4
HOH
HOH
268
A
HOH
269
4
HOH
HOH
269
A
HOH
270
4
HOH
HOH
270
A
HOH
271
4
HOH
HOH
271
A
HOH
272
4
HOH
HOH
272
A
HOH
273
4
HOH
HOH
273
A
HOH
274
4
HOH
HOH
274
A
HOH
275
4
HOH
HOH
275
A
HOH
276
4
HOH
HOH
276
A
HOH
277
4
HOH
HOH
277
A
HOH
278
4
HOH
HOH
278
A
HOH
279
4
HOH
HOH
279
A
HOH
280
4
HOH
HOH
280
A
HOH
281
4
HOH
HOH
281
A
HOH
282
4
HOH
HOH
282
A
HOH
283
4
HOH
HOH
283
A
HOH
284
4
HOH
HOH
284
A
HOH
285
4
HOH
HOH
285
A
HOH
286
4
HOH
HOH
286
A
HOH
287
4
HOH
HOH
287
A
HOH
288
4
HOH
HOH
288
A
HOH
289
4
HOH
HOH
289
A
HOH
290
4
HOH
HOH
290
A
HOH
291
4
HOH
HOH
291
A
HOH
292
4
HOH
HOH
292
A
HOH
293
4
HOH
HOH
293
A
HOH
294
4
HOH
HOH
294
A
HOH
295
4
HOH
HOH
295
A
HOH
296
4
HOH
HOH
296
A
HOH
297
4
HOH
HOH
297
A
HOH
298
4
HOH
HOH
298
A
HOH
299
4
HOH
HOH
299
A
HOH
300
4
HOH
HOH
300
A
HOH
301
4
HOH
HOH
301
A
HOH
302
4
HOH
HOH
302
A
HOH
303
4
HOH
HOH
303
A
HOH
304
4
HOH
HOH
304
A
HOH
305
4
HOH
HOH
305
A
HOH
306
4
HOH
HOH
306
A
HOH
307
4
HOH
HOH
307
A
HOH
308
4
HOH
HOH
308
A
HOH
309
4
HOH
HOH
309
A
HOH
310
4
HOH
HOH
310
A
HOH
311
4
HOH
HOH
311
A
HOH
312
4
HOH
HOH
312
A
HOH
313
4
HOH
HOH
313
A
HOH
314
4
HOH
HOH
314
A
HOH
315
4
HOH
HOH
315
A
HOH
316
4
HOH
HOH
316
A
HOH
317
4
HOH
HOH
317
A
HOH
318
4
HOH
HOH
318
A
HOH
319
4
HOH
HOH
319
A
HOH
320
4
HOH
HOH
320
A
HOH
321
4
HOH
HOH
321
A
HOH
322
4
HOH
HOH
322
A
HOH
323
4
HOH
HOH
323
A
HOH
324
4
HOH
HOH
324
A
HOH
325
4
HOH
HOH
325
A
HOH
326
4
HOH
HOH
326
A
HOH
327
4
HOH
HOH
327
A
HOH
328
4
HOH
HOH
328
A
HOH
329
4
HOH
HOH
329
A
HOH
330
4
HOH
HOH
330
A
HOH
331
4
HOH
HOH
331
A
HOH
332
4
HOH
HOH
332
A
HOH
333
4
HOH
HOH
333
A
HOH
334
4
HOH
HOH
334
A
HOH
335
4
HOH
HOH
335
A
HOH
336
4
HOH
HOH
336
A
HOH
337
4
HOH
HOH
337
A
HOH
338
4
HOH
HOH
338
A
HOH
339
4
HOH
HOH
339
A
HOH
340
4
HOH
HOH
340
A
HOH
341
4
HOH
HOH
341
A
HOH
342
4
HOH
HOH
342
A
HOH
343
4
HOH
HOH
343
A
HOH
344
4
HOH
HOH
344
A
HOH
345
4
HOH
HOH
345
A
HOH
346
4
HOH
HOH
346
A
HOH
347
4
HOH
HOH
347
A
HOH
348
4
HOH
HOH
348
A
HOH
349
4
HOH
HOH
349
A
HOH
350
4
HOH
HOH
350
A
HOH
351
4
HOH
HOH
351
A
HOH
352
4
HOH
HOH
352
A
HOH
353
4
HOH
HOH
353
A
HOH
354
4
HOH
HOH
354
A
HOH
355
4
HOH
HOH
355
A
HOH
356
4
HOH
HOH
356
A
HOH
357
4
HOH
HOH
357
A
HOH
358
4
HOH
HOH
358
A
HOH
359
4
HOH
HOH
359
A
HOH
360
4
HOH
HOH
360
A
HOH
361
4
HOH
HOH
361
A
HOH
362
4
HOH
HOH
362
A
HOH
363
4
HOH
HOH
363
A
HOH
364
4
HOH
HOH
364
A
HOH
365
4
HOH
HOH
365
A
HOH
366
4
HOH
HOH
366
A
HOH
367
4
HOH
HOH
367
A
HOH
368
4
HOH
HOH
368
A
HOH
369
4
HOH
HOH
369
A
HOH
370
4
HOH
HOH
370
A
HOH
371
4
HOH
HOH
371
A
HOH
372
4
HOH
HOH
372
A
HOH
373
4
HOH
HOH
373
A
HOH
374
4
HOH
HOH
374
A
HOH
375
4
HOH
HOH
375
A
HOH
376
4
HOH
HOH
376
A
HOH
377
4
HOH
HOH
377
A
HOH
378
4
HOH
HOH
378
A
HOH
379
4
HOH
HOH
379
A
HOH
380
4
HOH
HOH
380
A
HOH
381
4
HOH
HOH
381
A
HOH
382
4
HOH
HOH
382
A
HOH
383
4
HOH
HOH
383
A
HOH
384
4
HOH
HOH
384
A
HOH
385
4
HOH
HOH
385
A
HOH
386
4
HOH
HOH
386
A
HOH
387
4
HOH
HOH
387
A
HOH
388
4
HOH
HOH
388
A
HOH
389
4
HOH
HOH
389
A
HOH
390
4
HOH
HOH
390
A
HOH
391
4
HOH
HOH
391
A
HOH
392
4
HOH
HOH
392
A
HOH
393
4
HOH
HOH
393
A
HOH
394
4
HOH
HOH
394
A
HOH
395
4
HOH
HOH
395
A
HOH
396
4
HOH
HOH
396
A
HOH
397
4
HOH
HOH
397
A
HOH
398
4
HOH
HOH
398
A
HOH
399
4
HOH
HOH
399
A
HOH
400
4
HOH
HOH
400
A
HOH
401
4
HOH
HOH
401
A
HOH
402
4
HOH
HOH
402
A
HOH
403
4
HOH
HOH
403
A
HOH
404
4
HOH
HOH
404
A
HOH
405
4
HOH
HOH
405
A
HOH
406
4
HOH
HOH
406
A
HOH
407
4
HOH
HOH
407
A
HOH
408
4
HOH
HOH
408
A
HOH
409
4
HOH
HOH
409
A
HOH
410
4
HOH
HOH
410
A
HOH
411
4
HOH
HOH
411
A
HOH
412
4
HOH
HOH
412
A
HOH
413
4
HOH
HOH
413
A
HOH
414
4
HOH
HOH
414
A
HOH
415
4
HOH
HOH
415
A
HOH
416
4
HOH
HOH
416
A
HOH
417
4
HOH
HOH
417
A
HOH
418
4
HOH
HOH
418
A
HOH
419
4
HOH
HOH
419
A
HOH
420
4
HOH
HOH
420
A
HOH
421
4
HOH
HOH
421
A
HOH
422
4
HOH
HOH
422
A
HOH
423
4
HOH
HOH
423
A
HOH
424
4
HOH
HOH
424
A
HOH
425
4
HOH
HOH
425
A
HOH
426
4
HOH
HOH
426
A
HOH
427
4
HOH
HOH
427
A
HOH
428
4
HOH
HOH
428
A
HOH
429
4
HOH
HOH
429
A
HOH
430
4
HOH
HOH
430
A
HOH
431
4
HOH
HOH
431
A
HOH
432
4
HOH
HOH
432
A
HOH
433
4
HOH
HOH
433
A
HOH
434
4
HOH
HOH
434
A
HOH
435
4
HOH
HOH
435
A
HOH
436
4
HOH
HOH
436
A
HOH
437
4
HOH
HOH
437
A
HOH
438
4
HOH
HOH
438
A
HOH
439
4
HOH
HOH
439
A
HOH
440
4
HOH
HOH
440
A
HOH
441
4
HOH
HOH
441
A
HOH
442
4
HOH
HOH
442
A
HOH
443
4
HOH
HOH
443
A
HOH
444
4
HOH
HOH
444
A
HOH
445
4
HOH
HOH
445
A
HOH
446
4
HOH
HOH
446
A
HOH
447
4
HOH
HOH
447
A
HOH
448
4
HOH
HOH
448
A
HOH
449
4
HOH
HOH
449
A
HOH
450
4
HOH
HOH
450
A
HOH
451
4
HOH
HOH
451
A
HOH
452
4
HOH
HOH
452
A
HOH
453
4
HOH
HOH
453
A
HOH
454
4
HOH
HOH
454
A
HOH
455
4
HOH
HOH
455
A
HOH
456
4
HOH
HOH
456
A
HOH
457
4
HOH
HOH
457
A
HOH
458
4
HOH
HOH
458
A
HOH
459
4
HOH
HOH
459
A
HOH
460
4
HOH
HOH
460
A
HOH
461
4
HOH
HOH
461
A
HOH
462
4
HOH
HOH
462
A
HOH
463
4
HOH
HOH
463
A
HOH
464
4
HOH
HOH
464
A
HOH
465
4
HOH
HOH
465
A
HOH
466
4
HOH
HOH
466
A
HOH
467
4
HOH
HOH
467
A
HOH
468
4
HOH
HOH
468
A
HOH
469
4
HOH
HOH
469
A
HOH
470
4
HOH
HOH
470
A
HOH
471
4
HOH
HOH
471
A
HOH
472
4
HOH
HOH
472
A
HOH
473
4
HOH
HOH
473
A
HOH
474
4
HOH
HOH
474
A
HOH
475
4
HOH
HOH
475
A
HOH
476
4
HOH
HOH
476
A
HOH
477
4
HOH
HOH
477
A
HOH
478
4
HOH
HOH
478
A
HOH
479
4
HOH
HOH
479
A
HOH
480
4
HOH
HOH
480
A
HOH
481
4
HOH
HOH
481
A
HOH
482
4
HOH
HOH
482
A
HOH
483
4
HOH
HOH
483
A
HOH
484
4
HOH
HOH
484
A
HOH
485
4
HOH
HOH
485
A
HOH
486
4
HOH
HOH
486
A
HOH
487
4
HOH
HOH
487
A
HOH
488
4
HOH
HOH
488
A
HOH
489
4
HOH
HOH
489
A
HOH
490
4
HOH
HOH
490
A
HOH
491
4
HOH
HOH
491
A
HOH
492
4
HOH
HOH
492
A
HOH
493
4
HOH
HOH
493
A
HOH
494
4
HOH
HOH
494
A
HOH
495
4
HOH
HOH
495
A
HOH
496
4
HOH
HOH
496
A
HOH
497
4
HOH
HOH
497
A
HOH
498
4
HOH
HOH
498
A
HOH
499
4
HOH
HOH
499
A
HOH
500
4
HOH
HOH
500
A
HOH
501
4
HOH
HOH
501
A
HOH
502
4
HOH
HOH
502
A
HOH
503
4
HOH
HOH
503
A
HOH
504
4
HOH
HOH
504
A
HOH
505
4
HOH
HOH
505
A
HOH
506
4
HOH
HOH
506
A
HOH
507
4
HOH
HOH
507
A
HOH
508
4
HOH
HOH
508
A
HOH
509
4
HOH
HOH
509
A
HOH
510
4
HOH
HOH
510
A
HOH
511
4
HOH
HOH
511
A
HOH
512
4
HOH
HOH
512
A
HOH
513
4
HOH
HOH
513
A
HOH
514
4
HOH
HOH
514
A
n
1
1
A
n
2
2
A
n
3
3
A
ASP
4
n
4
ASP
4
A
TRP
5
n
5
TRP
5
A
GLY
6
n
6
GLY
6
A
TYR
7
n
7
TYR
7
A
ASP
8
n
8
ASP
8
A
ASP
9
n
9
ASP
9
A
LYS
10
n
10
LYS
10
A
ASN
11
n
11
ASN
11
A
GLY
12
n
12
GLY
12
A
PRO
13
n
13
PRO
13
A
GLU
14
n
14
GLU
14
A
GLN
15
n
15
GLN
15
A
TRP
16
n
16
TRP
16
A
SER
17
n
17
SER
17
A
LYS
18
n
18
LYS
18
A
LEU
19
n
19
LEU
19
A
TYR
20
n
20
TYR
20
A
PRO
21
n
21
PRO
21
A
ILE
22
n
22
ILE
22
A
ALA
23
n
23
ALA
23
A
ASN
24
n
24
ASN
24
A
GLY
25
n
25
GLY
25
A
ASN
26
n
26
ASN
26
A
ASN
27
n
27
ASN
27
A
GLN
28
n
28
GLN
28
A
SER
29
n
29
SER
29
A
PRO
30
n
30
PRO
30
A
VAL
31
n
31
VAL
31
A
ASP
32
n
32
ASP
32
A
ILE
33
n
33
ILE
33
A
LYS
34
n
34
LYS
34
A
THR
35
n
35
THR
35
A
SER
36
n
36
SER
36
A
GLU
37
n
37
GLU
37
A
THR
38
n
38
THR
38
A
LYS
39
n
39
LYS
39
A
HIS
40
n
40
HIS
40
A
ASP
41
n
41
ASP
41
A
THR
42
n
42
THR
42
A
SER
43
n
43
SER
43
A
LEU
44
n
44
LEU
44
A
LYS
45
n
45
LYS
45
A
PRO
46
n
46
PRO
46
A
ILE
47
n
47
ILE
47
A
SER
48
n
48
SER
48
A
VAL
49
n
49
VAL
49
A
SER
50
n
50
SER
50
A
TYR
51
n
51
TYR
51
A
ASN
52
n
52
ASN
52
A
PRO
53
n
53
PRO
53
A
ALA
54
n
54
ALA
54
A
THR
55
n
55
THR
55
A
ALA
56
n
56
ALA
56
A
LYS
57
n
57
LYS
57
A
GLU
58
n
58
GLU
58
A
ILE
59
n
59
ILE
59
A
ILE
60
n
60
ILE
60
A
ASN
61
n
61
ASN
61
A
VAL
62
n
62
VAL
62
A
GLY
63
n
63
GLY
63
A
HIS
64
n
64
HIS
64
A
SER
65
n
65
SER
65
A
PHE
66
n
66
PHE
66
A
HIS
67
n
67
HIS
67
A
VAL
68
n
68
VAL
68
A
ASN
69
n
69
ASN
69
A
PHE
70
n
70
PHE
70
A
GLU
71
n
71
GLU
71
A
ASP
72
n
72
ASP
72
A
ASN
73
n
73
ASN
73
A
ASP
74
n
74
ASP
74
A
ASN
75
n
75
ASN
75
A
ARG
76
n
76
ARG
76
A
SER
77
n
77
SER
77
A
VAL
78
n
78
VAL
78
A
LEU
79
n
79
LEU
79
A
LYS
80
n
80
LYS
80
A
GLY
81
n
81
GLY
81
A
GLY
82
n
82
GLY
82
A
PRO
83
n
83
PRO
83
A
PHE
84
n
84
PHE
84
A
SER
85
n
85
SER
85
A
ASP
86
n
86
ASP
86
A
SER
87
n
87
SER
87
A
TYR
88
n
88
TYR
88
A
ARG
89
n
89
ARG
89
A
LEU
90
n
90
LEU
90
A
PHE
91
n
91
PHE
91
A
GLN
92
n
92
GLN
92
A
PHE
93
n
93
PHE
93
A
HIS
94
n
94
HIS
94
A
PHE
95
n
95
PHE
95
A
HIS
96
n
96
HIS
96
A
TRP
97
n
97
TRP
97
A
GLY
98
n
98
GLY
98
A
SER
99
n
99
SER
99
A
THR
100
n
100
THR
100
A
ASN
101
n
101
ASN
101
A
GLU
102
n
102
GLU
102
A
HIS
103
n
103
HIS
103
A
GLY
104
n
104
GLY
104
A
SER
105
n
105
SER
105
A
GLU
106
n
106
GLU
106
A
HIS
107
n
107
HIS
107
A
THR
108
n
108
THR
108
A
VAL
109
n
109
VAL
109
A
ASP
110
n
110
ASP
110
A
GLY
111
n
111
GLY
111
A
VAL
112
n
112
VAL
112
A
LYS
113
n
113
LYS
113
A
TYR
114
n
114
TYR
114
A
SER
115
n
115
SER
115
A
ALA
116
n
116
ALA
116
A
GLU
117
n
117
GLU
117
A
LEU
118
n
118
LEU
118
A
HIS
119
n
119
HIS
119
A
VAL
120
n
120
VAL
120
A
ALA
121
n
121
ALA
121
A
HIS
122
n
122
HIS
122
A
TRP
123
n
123
TRP
123
A
ASN
124
n
124
ASN
124
A
SER
125
n
125
SER
125
A
ALA
126
n
126
ALA
126
A
LYS
127
n
127
LYS
127
A
TYR
128
n
128
TYR
128
A
SER
129
n
129
SER
129
A
SER
130
n
130
SER
130
A
LEU
131
n
131
LEU
131
A
ALA
132
n
132
ALA
132
A
GLU
133
n
133
GLU
133
A
ALA
134
n
134
ALA
134
A
ALA
135
n
135
ALA
135
A
SER
136
n
136
SER
136
A
LYS
137
n
137
LYS
137
A
ALA
138
n
138
ALA
138
A
ASP
139
n
139
ASP
139
A
GLY
140
n
140
GLY
140
A
LEU
141
n
141
LEU
141
A
ALA
142
n
142
ALA
142
A
VAL
143
n
143
VAL
143
A
ILE
144
n
144
ILE
144
A
GLY
145
n
145
GLY
145
A
VAL
146
n
146
VAL
146
A
LEU
147
n
147
LEU
147
A
MET
148
n
148
MET
148
A
LYS
149
n
149
LYS
149
A
VAL
150
n
150
VAL
150
A
GLY
151
n
151
GLY
151
A
GLU
152
n
152
GLU
152
A
ALA
153
n
153
ALA
153
A
ASN
154
n
154
ASN
154
A
PRO
155
n
155
PRO
155
A
LYS
156
n
156
LYS
156
A
LEU
157
n
157
LEU
157
A
GLN
158
n
158
GLN
158
A
LYS
159
n
159
LYS
159
A
VAL
160
n
160
VAL
160
A
LEU
161
n
161
LEU
161
A
ASP
162
n
162
ASP
162
A
ALA
163
n
163
ALA
163
A
LEU
164
n
164
LEU
164
A
GLN
165
n
165
GLN
165
A
ALA
166
n
166
ALA
166
A
ILE
167
n
167
ILE
167
A
LYS
168
n
168
LYS
168
A
THR
169
n
169
THR
169
A
LYS
170
n
170
LYS
170
A
GLY
171
n
171
GLY
171
A
LYS
172
n
172
LYS
172
A
ARG
173
n
173
ARG
173
A
ALA
174
n
174
ALA
174
A
PRO
175
n
175
PRO
175
A
PHE
176
n
176
PHE
176
A
THR
177
n
177
THR
177
A
ASN
178
n
178
ASN
178
A
PHE
179
n
179
PHE
179
A
ASP
180
n
180
ASP
180
A
PRO
181
n
181
PRO
181
A
SER
182
n
182
SER
182
A
THR
183
n
183
THR
183
A
LEU
184
n
184
LEU
184
A
LEU
185
n
185
LEU
185
A
PRO
186
n
186
PRO
186
A
SER
187
n
187
SER
187
A
SER
188
n
188
SER
188
A
LEU
189
n
189
LEU
189
A
ASP
190
n
190
ASP
190
A
PHE
191
n
191
PHE
191
A
TRP
192
n
192
TRP
192
A
THR
193
n
193
THR
193
A
TYR
194
n
194
TYR
194
A
PRO
195
n
195
PRO
195
A
GLY
196
n
196
GLY
196
A
SER
197
n
197
SER
197
A
LEU
198
n
198
LEU
198
A
THR
199
n
199
THR
199
A
HIS
200
n
200
HIS
200
A
PRO
201
n
201
PRO
201
A
PRO
202
n
202
PRO
202
A
LEU
203
n
203
LEU
203
A
TYR
204
n
204
TYR
204
A
GLU
205
n
205
GLU
205
A
SER
206
n
206
SER
206
A
VAL
207
n
207
VAL
207
A
THR
208
n
208
THR
208
A
TRP
209
n
209
TRP
209
A
ILE
210
n
210
ILE
210
A
ILE
211
n
211
ILE
211
A
CYS
212
n
212
CYS
212
A
LYS
213
n
213
LYS
213
A
GLU
214
n
214
GLU
214
A
SER
215
n
215
SER
215
A
ILE
216
n
216
ILE
216
A
SER
217
n
217
SER
217
A
VAL
218
n
218
VAL
218
A
SER
219
n
219
SER
219
A
SER
220
n
220
SER
220
A
GLU
221
n
221
GLU
221
A
GLN
222
n
222
GLN
222
A
LEU
223
n
223
LEU
223
A
ALA
224
n
224
ALA
224
A
GLN
225
n
225
GLN
225
A
PHE
226
n
226
PHE
226
A
ARG
227
n
227
ARG
227
A
SER
228
n
228
SER
228
A
LEU
229
n
229
LEU
229
A
LEU
230
n
230
LEU
230
A
SER
231
n
231
SER
231
A
ASN
232
n
232
ASN
232
A
VAL
233
n
233
VAL
233
A
GLU
234
n
234
GLU
234
A
GLY
235
n
235
GLY
235
A
ASP
236
n
236
ASP
236
A
ASN
237
n
237
ASN
237
A
ALA
238
n
238
ALA
238
A
VAL
239
n
239
VAL
239
A
PRO
240
n
240
PRO
240
A
MET
241
n
241
MET
241
A
GLN
242
n
242
GLN
242
A
HIS
243
n
243
HIS
243
A
ASN
244
n
244
ASN
244
A
ASN
245
n
245
ASN
245
A
ARG
246
n
246
ARG
246
A
PRO
247
n
247
PRO
247
A
THR
248
n
248
THR
248
A
GLN
249
n
249
GLN
249
A
PRO
250
n
250
PRO
250
A
LEU
251
n
251
LEU
251
A
LYS
252
n
252
LYS
252
A
GLY
253
n
253
GLY
253
A
ARG
254
n
254
ARG
254
A
THR
255
n
255
THR
255
A
VAL
256
n
256
VAL
256
A
ARG
257
n
257
ARG
257
A
ALA
258
n
258
ALA
258
A
SER
259
n
259
SER
259
A
PHE
260
n
260
PHE
260
A
author_defined_assembly
1
monomeric
A
HIS
94
A
NE2
HIS
94
1_555
A
ZN
261
B
ZN
ZN
1_555
A
HIS
96
A
NE2
HIS
96
1_555
107.9
A
HIS
94
A
NE2
HIS
94
1_555
A
ZN
261
B
ZN
ZN
1_555
A
HIS
119
A
ND1
HIS
119
1_555
113.5
A
HIS
96
A
NE2
HIS
96
1_555
A
ZN
261
B
ZN
ZN
1_555
A
HIS
119
A
ND1
HIS
119
1_555
105.1
A
HIS
94
A
NE2
HIS
94
1_555
A
ZN
261
B
ZN
ZN
1_555
A
IOD
520
C
I
IOD
1_555
105.2
A
HIS
96
A
NE2
HIS
96
1_555
A
ZN
261
B
ZN
ZN
1_555
A
IOD
520
C
I
IOD
1_555
122.8
A
HIS
119
A
ND1
HIS
119
1_555
A
ZN
261
B
ZN
ZN
1_555
A
IOD
520
C
I
IOD
1_555
102.6
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
A
ALA
1
A
ALA
1
1
Y
1
A
SER
2
A
SER
2
1
Y
1
A
PRO
3
A
PRO
3
1
Y
1
A
A
OXT
O
PHE
HOH
260
349
2.11
1
A
A
OD2
O
ASP
HOH
139
270
2.11
1
A
A
O
O
HOH
HOH
271
277
2.17
1
A
A
NZ
O
LYS
HOH
113
347
2.18
1
A
A
NE2
OD1
GLN
ASP
158
162
2.18
1
A
A
OE1
O
GLU
HOH
102
296
2.19
1
A
A
O
O
GLY
HOH
151
285
2.19
1
12.07
1.90
113.70
125.77
A
A
A
CA
CB
CG
TRP
TRP
TRP
16
16
16
N
1
-12.22
2.00
110.40
98.18
A
A
A
CB
CA
C
ASP
ASP
ASP
74
74
74
N
1
-5.55
0.90
118.30
112.75
A
A
A
CB
CG
OD1
ASP
ASP
ASP
74
74
74
N
1
-3.52
0.50
120.30
116.78
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
76
76
76
N
1
7.51
0.90
118.30
125.81
A
A
A
CB
CG
OD1
ASP
ASP
ASP
110
110
110
N
1
12.29
2.00
118.30
130.59
A
A
A
CG
CD
OE2
GLU
GLU
GLU
117
117
117
N
1
10.12
1.60
122.70
132.82
A
A
A
O
C
N
VAL
VAL
ALA
120
120
121
Y
1
7.57
0.90
118.30
125.87
A
A
A
CB
CG
OD1
ASP
ASP
ASP
162
162
162
N
1
-5.56
0.90
118.30
112.74
A
A
A
CB
CG
OD2
ASP
ASP
ASP
162
162
162
N
1
3.93
0.50
120.30
124.23
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
173
173
173
N
1
-7.45
0.90
118.30
110.85
A
A
A
CB
CG
OD2
ASP
ASP
ASP
180
180
180
N
1
14.15
1.90
110.20
124.35
A
A
A
CB
CA
C
LEU
LEU
LEU
189
189
189
N
1
6.36
0.90
118.30
124.66
A
A
A
CB
CG
OD1
ASP
ASP
ASP
190
190
190
N
1
14.68
1.90
110.20
124.88
A
A
A
CB
CA
C
LEU
LEU
LEU
251
251
251
N
1
15.11
2.30
115.30
130.41
A
A
A
CA
CB
CG
LEU
LEU
LEU
251
251
251
N
1
A
A
OE2
O
GLU
HOH
221
339
2.16
1_555
4_555
1
A
LYS
57
-128.55
-79.18
1
A
ASN
75
-95.57
30.23
1
A
ALA
135
-39.43
-25.89
1
A
PRO
201
-37.04
136.11
1
A
VAL
218
-172.54
147.51
1
A
ASN
244
-142.31
41.89
THE POTENTIAL SOLVENT SITES WERE IDENTIFIED FROM FO-FC
MAP IF THE PEAK HEIGHTS WERE MORE THAN THREE TIMES THE
STANDARD DEVIATION OF THE MAP AND WERE WITHIN THE H-BONDING
DISTANCE TO A DONOR/ACCEPTOR ATOM. SOLVENTS WERE ADDED TO
THE COORDINATE LIST IF ELECTRON DENSITY WAS ALSO OBSERVED
IN (2FO - FC) MAP. IN ADDITION TO THE POSITIONAL AND
ISOTROPIC THERMAL PARAMETER, OCCUPANCY WAS ALSO REFINED FOR
THE SOLVENT MOLECULES. SOLVENTS WHICH REFINED TO HIGH
B-VALUE (>58 A**2), LOW OCCUPANCY (<30 PER CENT) WERE NOT
INCLUDED IN THE MODEL DURING SUBSEQUENT STAGES OF
REFINEMENT. THE SUBMITTED MODEL HAS 253 SOLVENT MOLECULES
OUT OF WHICH 55 SOLVENTS ARE WITH PARTIAL OXYGEN OCCUPANCY.
THE SIDE CHAINS OF RESIDUES LYS 10, ARG 173 AND GLU 221
SHOW VERY POOR ELECTRON DENSITY IN THE FOURIER MAPS.
0.1660000
2.2
8.0
9788
1
2.2
8.0
253
2275
6
0
2016
0.016
refinement
PROLSQ
DIFFERENCES IN ANIONIC INHIBITION OF HUMAN CARBONIC ANHYDRASE I REVEALED FROM THE STRUCTURES OF IODIDE AND GOLD CYANIDE INHIBITOR COMPLEXES
1
N
N
2
N
N
3
N
N
3
N
N
3
N
N
3
N
N
3
N
N
4
N
N
A
PRO
13
A
PRO
13
HELX_P
A
LYS
18
A
LYS
18
5
HA
6
A
PRO
21
A
PRO
21
HELX_P
A
ASN
24
A
ASN
24
5
HB
4
A
PRO
53
A
PRO
53
HELX_P
A
THR
55
A
THR
55
5
HC
3
A
LEU
131
A
LEU
131
HELX_P
A
ALA
134
A
ALA
134
1
HD
4
A
PRO
155
A
PRO
155
HELX_P
A
LEU
157
A
LEU
157
5
HE
3
A
GLN
158
A
GLN
158
HELX_P
A
ASP
162
A
ASP
162
1
HF
5
A
ALA
163
A
ALA
163
HELX_P
A
ILE
167
A
ILE
167
5
HG
5
A
PRO
181
A
PRO
181
HELX_P
A
LEU
184
A
LEU
184
5
HH
4
A
SER
219
A
SER
219
HELX_P
A
ARG
227
A
ARG
227
1
HI
9
metalc
1.961
A
HIS
94
A
NE2
HIS
94
1_555
A
ZN
261
B
ZN
ZN
1_555
metalc
1.935
A
HIS
96
A
NE2
HIS
96
1_555
A
ZN
261
B
ZN
ZN
1_555
metalc
1.907
A
HIS
119
A
ND1
HIS
119
1_555
A
ZN
261
B
ZN
ZN
1_555
metalc
2.740
A
ZN
261
B
ZN
ZN
1_555
A
IOD
520
C
I
IOD
1_555
LYASE(OXO-ACID)
LYASE(OXO-ACID)
A
SER
29
A
SER
29
1
A
PRO
30
A
PRO
30
-2.77
A
PRO
201
A
PRO
201
1
A
PRO
202
A
PRO
202
5.97
CAH1_HUMAN
UNP
1
1
P00915
ASPDWGYDDKNGPEQWSKLYPIANGNNQSPVDIKTSETKHDTSLKPISVSYNPATAKEIINVGHSFHVNFEDNDNRSVLK
GGPFSDSYRLFQFHFHWGSTNEHGSEHTVDGVKYSAELHVAHWNSAKYSSLAEAASKADGLAVIGVLMKVGEANPKLQKV
LDALQAIKTKGKRAPFTNFDPSTLLPSSLDFWTYPGSLTHPPLYESVTWIICKESISVSSEQLAQFRSLLSNVEGDNAVP
MQHNNRPTQPLKGRTVRASF
1
260
1HUH
1
260
P00915
A
1
1
260
10
7
3
parallel
anti-parallel
anti-parallel
parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
A
LYS
39
A
LYS
39
A
HIS
40
A
HIS
40
A
ARG
257
A
ARG
257
A
ALA
258
A
ALA
258
A
PHE
191
A
PHE
191
A
GLY
196
A
GLY
196
A
VAL
207
A
VAL
207
A
CYS
212
A
CYS
212
A
LEU
141
A
LEU
141
A
VAL
150
A
VAL
150
A
ALA
116
A
ALA
116
A
TRP
123
A
TRP
123
A
TYR
88
A
TYR
88
A
TRP
97
A
TRP
97
A
PHE
66
A
PHE
66
A
PHE
70
A
PHE
70
A
ALA
56
A
ALA
56
A
ASN
61
A
ASN
61
A
ARG
173
A
ARG
173
A
PRO
175
A
PRO
175
A
ILE
216
A
ILE
216
A
VAL
218
A
VAL
218
A
LEU
141
A
LEU
141
A
VAL
150
A
VAL
150
A
ALA
116
A
ALA
116
A
TRP
123
A
TRP
123
A
TYR
88
A
TYR
88
A
TRP
97
A
TRP
97
A
PHE
66
A
PHE
66
A
PHE
70
A
PHE
70
A
ALA
56
A
ALA
56
A
ASN
61
A
ASN
61
A
ARG
173
A
ARG
173
A
PRO
175
A
PRO
175
A
ILE
47
A
ILE
47
A
SER
50
A
SER
50
A
VAL
78
A
VAL
78
A
GLY
81
A
GLY
81
A
TYR
88
A
TYR
88
A
TRP
97
A
TRP
97
SUBSTRATE BINDING AND CATALYTIC SITE
Author
10
BINDING SITE FOR RESIDUE ZN A 261
A
ZN
261
Software
4
BINDING SITE FOR RESIDUE IOD A 520
A
IOD
520
Software
4
BINDING SITE FOR RESIDUE IOD A 521
A
IOD
521
Software
2
BINDING SITE FOR RESIDUE IOD A 522
A
IOD
522
Software
1
BINDING SITE FOR RESIDUE IOD A 523
A
IOD
523
Software
2
BINDING SITE FOR RESIDUE IOD A 524
A
IOD
524
Software
2
A
HIS
94
A
HIS
94
10
1_555
A
HIS
96
A
HIS
96
10
1_555
A
HIS
119
A
HIS
119
10
1_555
A
ALA
121
A
ALA
121
10
1_555
A
VAL
143
A
VAL
143
10
1_555
A
LEU
198
A
LEU
198
10
1_555
A
THR
199
A
THR
199
10
1_555
A
VAL
207
A
VAL
207
10
1_555
A
TRP
209
A
TRP
209
10
1_555
A
ZN
261
B
ZN
10
1_555
A
HIS
94
A
HIS
94
4
1_555
A
HIS
96
A
HIS
96
4
1_555
A
HIS
119
A
HIS
119
4
1_555
A
IOD
520
C
IOD
4
1_555
A
HIS
119
A
HIS
119
4
1_555
A
THR
199
A
THR
199
4
1_555
A
ZN
261
B
ZN
4
1_555
A
HOH
271
H
HOH
4
1_555
A
GLU
14
A
GLU
14
2
1_555
A
GLN
249
A
GLN
249
2
1_555
A
CYS
212
A
CYS
212
1
1_555
A
PRO
46
A
PRO
46
2
2_554
A
ASN
75
A
ASN
75
2
1_555
A
LYS
113
A
LYS
113
2
1_555
A
HOH
381
H
HOH
2
1_555
19
P 21 21 21