.012309
.000000
.000000
.000000
.012309
.000000
.000000
.000000
.006168
.00000
.00000
.00000
Cronk, J.D.
Endrizzi, J.A.
Cronk, M.R.
O'Neill, J.W.
Zhang, K.Y.J.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
16
90.00
90.00
90.00
81.244
81.244
162.137
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
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
C5 H11 N O2 Se
196.106
n
SELENOMETHIONINE
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
US
Protein Sci.
PRCIEI
0795
0961-8368
10
911
922
10.1110/ps.46301
11316870
Crystal structure of E. coli beta-carbonic anhydrase, an enzyme with an unusual pH-dependent activity.
2001
DK
Acta Crystallogr.,Sect.D
ABCRE6
0766
0907-4449
52
1176
1179
10.1107/S0907444900008519
Cloning, crystallization and preliminary characterization of a beta carbonic anhydrase from Escherichia coli
2000
1.000000
.000000
.000000
.000000
1.000000
.000000
.000000
.000000
1.000000
.00000
.00000
.00000
100
1
CCD
1999-11-08
ADSC QUANTUM 4
Double crystal
MAD
M
x-ray
1
0.96112
1.0
0.97950
1.0
0.97970
1.0
1.07812
1.0
1.28109
1.0
5.0.2
ALS
0.96112,0.97950,0.97970,1.07812,1.28109
SYNCHROTRON
ALS BEAMLINE 5.0.2
25365.254
CARBONIC ANHYDRASE
4.2.1.1
2
man
polymer
65.409
ZINC ION
2
syn
non-polymer
18.015
water
87
nat
water
no
yes
(MSE)KDIDTLISNNALWSK(MSE)LVEEDPGFFEKLAQAQKPRFLWIGCSDSRVPAERLTGLEPGELFVHRNVANLVIH
TDLNCLSVVQYAVDVLEVEHIIICGHYGCGGVQAAVENPELGLINNWLLHIRDIWFKHSSLLGE(MSE)PQERRLDTLCE
LNV(MSE)EQVYNLGHSTI(MSE)QSAWKRGQKVTIHGWAYGIHDGLLRDLDVTATNRETLEQRYRHGISNLKLKHANHK
MKDIDTLISNNALWSKMLVEEDPGFFEKLAQAQKPRFLWIGCSDSRVPAERLTGLEPGELFVHRNVANLVIHTDLNCLSV
VQYAVDVLEVEHIIICGHYGCGGVQAAVENPELGLINNWLLHIRDIWFKHSSLLGEMPQERRLDTLCELNVMEQVYNLGH
STIMQSAWKRGQKVTIHGWAYGIHDGLLRDLDVTATNRETLEQRYRHGISNLKLKHANHK
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
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
n
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
Escherichia coli
sample
YADF
562
Escherichia coli
511693
Escherichia coli BL21
BL21
PLASMID
PET3A
1
2.64
51.6
VAPOR DIFFUSION, HANGING DROP
6.5
ammonium sulfate, PEG 400, MES pH 6.5, VAPOR DIFFUSION, HANGING DROP, temperature 293K
293
repository
Initial release
Version format compliance
Derived calculations
Version format compliance
1
0
2001-05-09
1
1
2008-04-27
1
2
2011-07-13
CRYSTAL STRUCTURE OF E. COLI BETA CARBONIC ANHYDRASE (ECCA) IN A DIFFERENT SPACE GROUP, P42212, SOLVED TO 2.0A RESOLUTION
DENSITY FOR THE FOLLOWING ATOMS WITHIN THE MAIN CHAIN
IS RELATIVELY WEAK AND LIKELY REFLECTS INCREASED LOCAL
CONFORMATIONAL FLEXIBILITY OF THE MAIN CHAIN IN THIS
REGION.
ALA A 32 CA
GLN B 31 C
GLN B 31 O
ALA B 32 CA
ALA B 32 O
DENSITY FOR THE SIDE CHAINS OF THE LISTED RESIDUES IS
RELATIVELY POORLY DEFINED. THE MODEL REPRESENTS
THE MOST PROBABLE CONFORMATIONS FOR THESE RESIDUES
BASED ON THE OBSERVED DENSITY.
LYS A 16
GLU A 27
LYS A 28
GLN A 31
ARG A 36
GLN A 139
GLU A 140
ARG A 198
GLU A 199
LYS A 213
LEU A 214
LYS A 215
LYS B 2
LEU B 13
LYS B 16
GLU B 20
GLU B 21
LYS B 28
ARG B 36
GLU B 140
ARG B 141
LYS B 173
ARG B 206
ASN B 211
LEU B 212
LYS B 213
LEU B 214
LYS B 215
RCSB
Y
RCSB
2001-03-02
REL
ZN
ZINC ION
HOH
water
ZN
301
2
ZN
ZN
301
A
ZN
302
2
ZN
ZN
302
B
HOH
2
3
HOH
HOH
302
A
HOH
4
3
HOH
HOH
303
A
HOH
5
3
HOH
HOH
304
A
HOH
6
3
HOH
HOH
305
A
HOH
7
3
HOH
HOH
306
A
HOH
8
3
HOH
HOH
307
A
HOH
10
3
HOH
HOH
308
A
HOH
11
3
HOH
HOH
309
A
HOH
12
3
HOH
HOH
310
A
HOH
13
3
HOH
HOH
311
A
HOH
15
3
HOH
HOH
312
A
HOH
18
3
HOH
HOH
313
A
HOH
19
3
HOH
HOH
314
A
HOH
21
3
HOH
HOH
315
A
HOH
22
3
HOH
HOH
316
A
HOH
23
3
HOH
HOH
317
A
HOH
25
3
HOH
HOH
318
A
HOH
26
3
HOH
HOH
319
A
HOH
32
3
HOH
HOH
320
A
HOH
33
3
HOH
HOH
321
A
HOH
34
3
HOH
HOH
322
A
HOH
40
3
HOH
HOH
323
A
HOH
42
3
HOH
HOH
324
A
HOH
43
3
HOH
HOH
325
A
HOH
46
3
HOH
HOH
326
A
HOH
48
3
HOH
HOH
327
A
HOH
50
3
HOH
HOH
328
A
HOH
52
3
HOH
HOH
329
A
HOH
53
3
HOH
HOH
330
A
HOH
54
3
HOH
HOH
331
A
HOH
57
3
HOH
HOH
332
A
HOH
58
3
HOH
HOH
333
A
HOH
60
3
HOH
HOH
334
A
HOH
61
3
HOH
HOH
335
A
HOH
64
3
HOH
HOH
336
A
HOH
66
3
HOH
HOH
337
A
HOH
67
3
HOH
HOH
338
A
HOH
68
3
HOH
HOH
339
A
HOH
69
3
HOH
HOH
340
A
HOH
70
3
HOH
HOH
341
A
HOH
71
3
HOH
HOH
342
A
HOH
75
3
HOH
HOH
343
A
HOH
76
3
HOH
HOH
344
A
HOH
77
3
HOH
HOH
345
A
HOH
82
3
HOH
HOH
346
A
HOH
83
3
HOH
HOH
347
A
HOH
84
3
HOH
HOH
348
A
HOH
85
3
HOH
HOH
349
A
HOH
86
3
HOH
HOH
350
A
HOH
87
3
HOH
HOH
351
A
HOH
1
3
HOH
HOH
303
B
HOH
3
3
HOH
HOH
304
B
HOH
9
3
HOH
HOH
305
B
HOH
14
3
HOH
HOH
306
B
HOH
16
3
HOH
HOH
307
B
HOH
17
3
HOH
HOH
308
B
HOH
20
3
HOH
HOH
309
B
HOH
24
3
HOH
HOH
310
B
HOH
27
3
HOH
HOH
311
B
HOH
28
3
HOH
HOH
312
B
HOH
29
3
HOH
HOH
313
B
HOH
30
3
HOH
HOH
314
B
HOH
31
3
HOH
HOH
315
B
HOH
35
3
HOH
HOH
316
B
HOH
36
3
HOH
HOH
317
B
HOH
37
3
HOH
HOH
318
B
HOH
38
3
HOH
HOH
319
B
HOH
39
3
HOH
HOH
320
B
HOH
41
3
HOH
HOH
321
B
HOH
44
3
HOH
HOH
322
B
HOH
45
3
HOH
HOH
323
B
HOH
47
3
HOH
HOH
324
B
HOH
49
3
HOH
HOH
325
B
HOH
51
3
HOH
HOH
326
B
HOH
55
3
HOH
HOH
327
B
HOH
56
3
HOH
HOH
328
B
HOH
59
3
HOH
HOH
329
B
HOH
62
3
HOH
HOH
330
B
HOH
63
3
HOH
HOH
331
B
HOH
65
3
HOH
HOH
332
B
HOH
72
3
HOH
HOH
333
B
HOH
73
3
HOH
HOH
334
B
HOH
74
3
HOH
HOH
335
B
HOH
78
3
HOH
HOH
336
B
HOH
79
3
HOH
HOH
337
B
HOH
80
3
HOH
HOH
338
B
HOH
81
3
HOH
HOH
339
B
n
1
1
A
n
2
2
A
ASP
3
n
3
ASP
3
A
ILE
4
n
4
ILE
4
A
ASP
5
n
5
ASP
5
A
THR
6
n
6
THR
6
A
LEU
7
n
7
LEU
7
A
ILE
8
n
8
ILE
8
A
SER
9
n
9
SER
9
A
ASN
10
n
10
ASN
10
A
ASN
11
n
11
ASN
11
A
ALA
12
n
12
ALA
12
A
LEU
13
n
13
LEU
13
A
TRP
14
n
14
TRP
14
A
SER
15
n
15
SER
15
A
LYS
16
n
16
LYS
16
A
MSE
17
n
17
MSE
17
A
LEU
18
n
18
LEU
18
A
VAL
19
n
19
VAL
19
A
GLU
20
n
20
GLU
20
A
GLU
21
n
21
GLU
21
A
ASP
22
n
22
ASP
22
A
PRO
23
n
23
PRO
23
A
GLY
24
n
24
GLY
24
A
PHE
25
n
25
PHE
25
A
PHE
26
n
26
PHE
26
A
GLU
27
n
27
GLU
27
A
LYS
28
n
28
LYS
28
A
LEU
29
n
29
LEU
29
A
ALA
30
n
30
ALA
30
A
GLN
31
n
31
GLN
31
A
ALA
32
n
32
ALA
32
A
GLN
33
n
33
GLN
33
A
LYS
34
n
34
LYS
34
A
PRO
35
n
35
PRO
35
A
ARG
36
n
36
ARG
36
A
PHE
37
n
37
PHE
37
A
LEU
38
n
38
LEU
38
A
TRP
39
n
39
TRP
39
A
ILE
40
n
40
ILE
40
A
GLY
41
n
41
GLY
41
A
CYS
42
n
42
CYS
42
A
SER
43
n
43
SER
43
A
ASP
44
n
44
ASP
44
A
SER
45
n
45
SER
45
A
ARG
46
n
46
ARG
46
A
VAL
47
n
47
VAL
47
A
PRO
48
n
48
PRO
48
A
ALA
49
n
49
ALA
49
A
GLU
50
n
50
GLU
50
A
ARG
51
n
51
ARG
51
A
LEU
52
n
52
LEU
52
A
THR
53
n
53
THR
53
A
GLY
54
n
54
GLY
54
A
LEU
55
n
55
LEU
55
A
GLU
56
n
56
GLU
56
A
PRO
57
n
57
PRO
57
A
GLY
58
n
58
GLY
58
A
GLU
59
n
59
GLU
59
A
LEU
60
n
60
LEU
60
A
PHE
61
n
61
PHE
61
A
VAL
62
n
62
VAL
62
A
HIS
63
n
63
HIS
63
A
ARG
64
n
64
ARG
64
A
ASN
65
n
65
ASN
65
A
VAL
66
n
66
VAL
66
A
ALA
67
n
67
ALA
67
A
ASN
68
n
68
ASN
68
A
LEU
69
n
69
LEU
69
A
VAL
70
n
70
VAL
70
A
ILE
71
n
71
ILE
71
A
HIS
72
n
72
HIS
72
A
THR
73
n
73
THR
73
A
ASP
74
n
74
ASP
74
A
LEU
75
n
75
LEU
75
A
ASN
76
n
76
ASN
76
A
CYS
77
n
77
CYS
77
A
LEU
78
n
78
LEU
78
A
SER
79
n
79
SER
79
A
VAL
80
n
80
VAL
80
A
VAL
81
n
81
VAL
81
A
GLN
82
n
82
GLN
82
A
TYR
83
n
83
TYR
83
A
ALA
84
n
84
ALA
84
A
VAL
85
n
85
VAL
85
A
ASP
86
n
86
ASP
86
A
VAL
87
n
87
VAL
87
A
LEU
88
n
88
LEU
88
A
GLU
89
n
89
GLU
89
A
VAL
90
n
90
VAL
90
A
GLU
91
n
91
GLU
91
A
HIS
92
n
92
HIS
92
A
ILE
93
n
93
ILE
93
A
ILE
94
n
94
ILE
94
A
ILE
95
n
95
ILE
95
A
CYS
96
n
96
CYS
96
A
GLY
97
n
97
GLY
97
A
HIS
98
n
98
HIS
98
A
TYR
99
n
99
TYR
99
A
GLY
100
n
100
GLY
100
A
CYS
101
n
101
CYS
101
A
GLY
102
n
102
GLY
102
A
GLY
103
n
103
GLY
103
A
VAL
104
n
104
VAL
104
A
GLN
105
n
105
GLN
105
A
ALA
106
n
106
ALA
106
A
ALA
107
n
107
ALA
107
A
VAL
108
n
108
VAL
108
A
GLU
109
n
109
GLU
109
A
ASN
110
n
110
ASN
110
A
PRO
111
n
111
PRO
111
A
GLU
112
n
112
GLU
112
A
LEU
113
n
113
LEU
113
A
GLY
114
n
114
GLY
114
A
LEU
115
n
115
LEU
115
A
ILE
116
n
116
ILE
116
A
ASN
117
n
117
ASN
117
A
ASN
118
n
118
ASN
118
A
TRP
119
n
119
TRP
119
A
LEU
120
n
120
LEU
120
A
LEU
121
n
121
LEU
121
A
HIS
122
n
122
HIS
122
A
ILE
123
n
123
ILE
123
A
ARG
124
n
124
ARG
124
A
ASP
125
n
125
ASP
125
A
ILE
126
n
126
ILE
126
A
TRP
127
n
127
TRP
127
A
PHE
128
n
128
PHE
128
A
LYS
129
n
129
LYS
129
A
HIS
130
n
130
HIS
130
A
SER
131
n
131
SER
131
A
SER
132
n
132
SER
132
A
LEU
133
n
133
LEU
133
A
LEU
134
n
134
LEU
134
A
GLY
135
n
135
GLY
135
A
GLU
136
n
136
GLU
136
A
MSE
137
n
137
MSE
137
A
PRO
138
n
138
PRO
138
A
GLN
139
n
139
GLN
139
A
GLU
140
n
140
GLU
140
A
ARG
141
n
141
ARG
141
A
ARG
142
n
142
ARG
142
A
LEU
143
n
143
LEU
143
A
ASP
144
n
144
ASP
144
A
THR
145
n
145
THR
145
A
LEU
146
n
146
LEU
146
A
CYS
147
n
147
CYS
147
A
GLU
148
n
148
GLU
148
A
LEU
149
n
149
LEU
149
A
ASN
150
n
150
ASN
150
A
VAL
151
n
151
VAL
151
A
MSE
152
n
152
MSE
152
A
GLU
153
n
153
GLU
153
A
GLN
154
n
154
GLN
154
A
VAL
155
n
155
VAL
155
A
TYR
156
n
156
TYR
156
A
ASN
157
n
157
ASN
157
A
LEU
158
n
158
LEU
158
A
GLY
159
n
159
GLY
159
A
HIS
160
n
160
HIS
160
A
SER
161
n
161
SER
161
A
THR
162
n
162
THR
162
A
ILE
163
n
163
ILE
163
A
MSE
164
n
164
MSE
164
A
GLN
165
n
165
GLN
165
A
SER
166
n
166
SER
166
A
ALA
167
n
167
ALA
167
A
TRP
168
n
168
TRP
168
A
LYS
169
n
169
LYS
169
A
ARG
170
n
170
ARG
170
A
GLY
171
n
171
GLY
171
A
GLN
172
n
172
GLN
172
A
LYS
173
n
173
LYS
173
A
VAL
174
n
174
VAL
174
A
THR
175
n
175
THR
175
A
ILE
176
n
176
ILE
176
A
HIS
177
n
177
HIS
177
A
GLY
178
n
178
GLY
178
A
TRP
179
n
179
TRP
179
A
ALA
180
n
180
ALA
180
A
TYR
181
n
181
TYR
181
A
GLY
182
n
182
GLY
182
A
ILE
183
n
183
ILE
183
A
HIS
184
n
184
HIS
184
A
ASP
185
n
185
ASP
185
A
GLY
186
n
186
GLY
186
A
LEU
187
n
187
LEU
187
A
LEU
188
n
188
LEU
188
A
ARG
189
n
189
ARG
189
A
ASP
190
n
190
ASP
190
A
LEU
191
n
191
LEU
191
A
ASP
192
n
192
ASP
192
A
VAL
193
n
193
VAL
193
A
THR
194
n
194
THR
194
A
ALA
195
n
195
ALA
195
A
THR
196
n
196
THR
196
A
ASN
197
n
197
ASN
197
A
ARG
198
n
198
ARG
198
A
GLU
199
n
199
GLU
199
A
THR
200
n
200
THR
200
A
LEU
201
n
201
LEU
201
A
GLU
202
n
202
GLU
202
A
GLN
203
n
203
GLN
203
A
ARG
204
n
204
ARG
204
A
TYR
205
n
205
TYR
205
A
ARG
206
n
206
ARG
206
A
HIS
207
n
207
HIS
207
A
GLY
208
n
208
GLY
208
A
ILE
209
n
209
ILE
209
A
SER
210
n
210
SER
210
A
ASN
211
n
211
ASN
211
A
LEU
212
n
212
LEU
212
A
LYS
213
n
213
LYS
213
A
LEU
214
n
214
LEU
214
A
LYS
215
n
215
LYS
215
A
n
216
216
A
n
217
217
A
n
218
218
A
n
219
219
A
n
220
220
A
n
1
1
B
LYS
2
n
2
LYS
2
B
ASP
3
n
3
ASP
3
B
ILE
4
n
4
ILE
4
B
ASP
5
n
5
ASP
5
B
THR
6
n
6
THR
6
B
LEU
7
n
7
LEU
7
B
ILE
8
n
8
ILE
8
B
SER
9
n
9
SER
9
B
ASN
10
n
10
ASN
10
B
ASN
11
n
11
ASN
11
B
ALA
12
n
12
ALA
12
B
LEU
13
n
13
LEU
13
B
TRP
14
n
14
TRP
14
B
SER
15
n
15
SER
15
B
LYS
16
n
16
LYS
16
B
MSE
17
n
17
MSE
17
B
LEU
18
n
18
LEU
18
B
VAL
19
n
19
VAL
19
B
GLU
20
n
20
GLU
20
B
GLU
21
n
21
GLU
21
B
ASP
22
n
22
ASP
22
B
PRO
23
n
23
PRO
23
B
GLY
24
n
24
GLY
24
B
PHE
25
n
25
PHE
25
B
PHE
26
n
26
PHE
26
B
GLU
27
n
27
GLU
27
B
LYS
28
n
28
LYS
28
B
LEU
29
n
29
LEU
29
B
ALA
30
n
30
ALA
30
B
GLN
31
n
31
GLN
31
B
ALA
32
n
32
ALA
32
B
GLN
33
n
33
GLN
33
B
LYS
34
n
34
LYS
34
B
PRO
35
n
35
PRO
35
B
ARG
36
n
36
ARG
36
B
PHE
37
n
37
PHE
37
B
LEU
38
n
38
LEU
38
B
TRP
39
n
39
TRP
39
B
ILE
40
n
40
ILE
40
B
GLY
41
n
41
GLY
41
B
CYS
42
n
42
CYS
42
B
SER
43
n
43
SER
43
B
ASP
44
n
44
ASP
44
B
SER
45
n
45
SER
45
B
ARG
46
n
46
ARG
46
B
VAL
47
n
47
VAL
47
B
PRO
48
n
48
PRO
48
B
ALA
49
n
49
ALA
49
B
GLU
50
n
50
GLU
50
B
ARG
51
n
51
ARG
51
B
LEU
52
n
52
LEU
52
B
THR
53
n
53
THR
53
B
GLY
54
n
54
GLY
54
B
LEU
55
n
55
LEU
55
B
GLU
56
n
56
GLU
56
B
PRO
57
n
57
PRO
57
B
GLY
58
n
58
GLY
58
B
GLU
59
n
59
GLU
59
B
LEU
60
n
60
LEU
60
B
PHE
61
n
61
PHE
61
B
VAL
62
n
62
VAL
62
B
HIS
63
n
63
HIS
63
B
ARG
64
n
64
ARG
64
B
ASN
65
n
65
ASN
65
B
VAL
66
n
66
VAL
66
B
ALA
67
n
67
ALA
67
B
ASN
68
n
68
ASN
68
B
LEU
69
n
69
LEU
69
B
VAL
70
n
70
VAL
70
B
ILE
71
n
71
ILE
71
B
HIS
72
n
72
HIS
72
B
THR
73
n
73
THR
73
B
ASP
74
n
74
ASP
74
B
LEU
75
n
75
LEU
75
B
ASN
76
n
76
ASN
76
B
CYS
77
n
77
CYS
77
B
LEU
78
n
78
LEU
78
B
SER
79
n
79
SER
79
B
VAL
80
n
80
VAL
80
B
VAL
81
n
81
VAL
81
B
GLN
82
n
82
GLN
82
B
TYR
83
n
83
TYR
83
B
ALA
84
n
84
ALA
84
B
VAL
85
n
85
VAL
85
B
ASP
86
n
86
ASP
86
B
VAL
87
n
87
VAL
87
B
LEU
88
n
88
LEU
88
B
GLU
89
n
89
GLU
89
B
VAL
90
n
90
VAL
90
B
GLU
91
n
91
GLU
91
B
HIS
92
n
92
HIS
92
B
ILE
93
n
93
ILE
93
B
ILE
94
n
94
ILE
94
B
ILE
95
n
95
ILE
95
B
CYS
96
n
96
CYS
96
B
GLY
97
n
97
GLY
97
B
HIS
98
n
98
HIS
98
B
TYR
99
n
99
TYR
99
B
GLY
100
n
100
GLY
100
B
CYS
101
n
101
CYS
101
B
GLY
102
n
102
GLY
102
B
GLY
103
n
103
GLY
103
B
VAL
104
n
104
VAL
104
B
GLN
105
n
105
GLN
105
B
ALA
106
n
106
ALA
106
B
ALA
107
n
107
ALA
107
B
VAL
108
n
108
VAL
108
B
GLU
109
n
109
GLU
109
B
ASN
110
n
110
ASN
110
B
PRO
111
n
111
PRO
111
B
GLU
112
n
112
GLU
112
B
LEU
113
n
113
LEU
113
B
GLY
114
n
114
GLY
114
B
LEU
115
n
115
LEU
115
B
ILE
116
n
116
ILE
116
B
ASN
117
n
117
ASN
117
B
ASN
118
n
118
ASN
118
B
TRP
119
n
119
TRP
119
B
LEU
120
n
120
LEU
120
B
LEU
121
n
121
LEU
121
B
HIS
122
n
122
HIS
122
B
ILE
123
n
123
ILE
123
B
ARG
124
n
124
ARG
124
B
ASP
125
n
125
ASP
125
B
ILE
126
n
126
ILE
126
B
TRP
127
n
127
TRP
127
B
PHE
128
n
128
PHE
128
B
LYS
129
n
129
LYS
129
B
HIS
130
n
130
HIS
130
B
SER
131
n
131
SER
131
B
SER
132
n
132
SER
132
B
LEU
133
n
133
LEU
133
B
LEU
134
n
134
LEU
134
B
GLY
135
n
135
GLY
135
B
GLU
136
n
136
GLU
136
B
MSE
137
n
137
MSE
137
B
PRO
138
n
138
PRO
138
B
GLN
139
n
139
GLN
139
B
GLU
140
n
140
GLU
140
B
ARG
141
n
141
ARG
141
B
ARG
142
n
142
ARG
142
B
LEU
143
n
143
LEU
143
B
ASP
144
n
144
ASP
144
B
THR
145
n
145
THR
145
B
LEU
146
n
146
LEU
146
B
CYS
147
n
147
CYS
147
B
GLU
148
n
148
GLU
148
B
LEU
149
n
149
LEU
149
B
ASN
150
n
150
ASN
150
B
VAL
151
n
151
VAL
151
B
MSE
152
n
152
MSE
152
B
GLU
153
n
153
GLU
153
B
GLN
154
n
154
GLN
154
B
VAL
155
n
155
VAL
155
B
TYR
156
n
156
TYR
156
B
ASN
157
n
157
ASN
157
B
LEU
158
n
158
LEU
158
B
GLY
159
n
159
GLY
159
B
HIS
160
n
160
HIS
160
B
SER
161
n
161
SER
161
B
THR
162
n
162
THR
162
B
ILE
163
n
163
ILE
163
B
MSE
164
n
164
MSE
164
B
GLN
165
n
165
GLN
165
B
SER
166
n
166
SER
166
B
ALA
167
n
167
ALA
167
B
TRP
168
n
168
TRP
168
B
LYS
169
n
169
LYS
169
B
ARG
170
n
170
ARG
170
B
GLY
171
n
171
GLY
171
B
GLN
172
n
172
GLN
172
B
LYS
173
n
173
LYS
173
B
VAL
174
n
174
VAL
174
B
THR
175
n
175
THR
175
B
ILE
176
n
176
ILE
176
B
HIS
177
n
177
HIS
177
B
GLY
178
n
178
GLY
178
B
TRP
179
n
179
TRP
179
B
ALA
180
n
180
ALA
180
B
TYR
181
n
181
TYR
181
B
GLY
182
n
182
GLY
182
B
ILE
183
n
183
ILE
183
B
HIS
184
n
184
HIS
184
B
ASP
185
n
185
ASP
185
B
GLY
186
n
186
GLY
186
B
LEU
187
n
187
LEU
187
B
LEU
188
n
188
LEU
188
B
ARG
189
n
189
ARG
189
B
ASP
190
n
190
ASP
190
B
LEU
191
n
191
LEU
191
B
ASP
192
n
192
ASP
192
B
VAL
193
n
193
VAL
193
B
THR
194
n
194
THR
194
B
ALA
195
n
195
ALA
195
B
THR
196
n
196
THR
196
B
ASN
197
n
197
ASN
197
B
ARG
198
n
198
ARG
198
B
GLU
199
n
199
GLU
199
B
THR
200
n
200
THR
200
B
LEU
201
n
201
LEU
201
B
GLU
202
n
202
GLU
202
B
GLN
203
n
203
GLN
203
B
ARG
204
n
204
ARG
204
B
TYR
205
n
205
TYR
205
B
ARG
206
n
206
ARG
206
B
HIS
207
n
207
HIS
207
B
GLY
208
n
208
GLY
208
B
ILE
209
n
209
ILE
209
B
SER
210
n
210
SER
210
B
ASN
211
n
211
ASN
211
B
LEU
212
n
212
LEU
212
B
LYS
213
n
213
LYS
213
B
LEU
214
n
214
LEU
214
B
LYS
215
n
215
LYS
215
B
n
216
216
B
n
217
217
B
n
218
218
B
n
219
219
B
n
220
220
B
author_and_software_defined_assembly
PISA,PQS
4
tetrameric
15040
-97
33700
A
CYS
101
A
SG
CYS
101
1_555
A
ZN
301
C
ZN
ZN
1_555
A
ASP
44
A
OD2
ASP
44
1_555
111.4
A
CYS
101
A
SG
CYS
101
1_555
A
ZN
301
C
ZN
ZN
1_555
A
CYS
42
A
SG
CYS
42
1_555
117.8
A
ASP
44
A
OD2
ASP
44
1_555
A
ZN
301
C
ZN
ZN
1_555
A
CYS
42
A
SG
CYS
42
1_555
100.2
A
CYS
101
A
SG
CYS
101
1_555
A
ZN
301
C
ZN
ZN
1_555
A
HIS
98
A
NE2
HIS
98
1_555
106.0
A
ASP
44
A
OD2
ASP
44
1_555
A
ZN
301
C
ZN
ZN
1_555
A
HIS
98
A
NE2
HIS
98
1_555
104.8
A
CYS
42
A
SG
CYS
42
1_555
A
ZN
301
C
ZN
ZN
1_555
A
HIS
98
A
NE2
HIS
98
1_555
116.0
B
CYS
42
B
SG
CYS
42
1_555
B
ZN
302
D
ZN
ZN
1_555
B
HIS
98
B
NE2
HIS
98
1_555
112.5
B
CYS
42
B
SG
CYS
42
1_555
B
ZN
302
D
ZN
ZN
1_555
B
CYS
101
B
SG
CYS
101
1_555
115.7
B
HIS
98
B
NE2
HIS
98
1_555
B
ZN
302
D
ZN
ZN
1_555
B
CYS
101
B
SG
CYS
101
1_555
107.0
B
CYS
42
B
SG
CYS
42
1_555
B
ZN
302
D
ZN
ZN
1_555
B
ASP
44
B
OD2
ASP
44
1_555
98.9
B
HIS
98
B
NE2
HIS
98
1_555
B
ZN
302
D
ZN
ZN
1_555
B
ASP
44
B
OD2
ASP
44
1_555
107.7
B
CYS
101
B
SG
CYS
101
1_555
B
ZN
302
D
ZN
ZN
1_555
B
ASP
44
B
OD2
ASP
44
1_555
114.8
A
MSE
17
SELENOMETHIONINE
A
MSE
17
MET
A
MSE
137
SELENOMETHIONINE
A
MSE
137
MET
A
MSE
152
SELENOMETHIONINE
A
MSE
152
MET
A
MSE
164
SELENOMETHIONINE
A
MSE
164
MET
B
MSE
17
SELENOMETHIONINE
B
MSE
17
MET
B
MSE
137
SELENOMETHIONINE
B
MSE
137
MET
B
MSE
152
SELENOMETHIONINE
B
MSE
152
MET
B
MSE
164
SELENOMETHIONINE
B
MSE
164
MET
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
6_555
x,-y,-z+1/2
crystal symmetry operation
0.0000000000
0.0000000000
81.0685000000
A
N
PHE
61
A
N
PHE
61
A
O
PHE
37
A
O
PHE
37
A
N
LEU
38
A
N
LEU
38
A
O
HIS
92
A
O
HIS
92
A
N
ILE
93
A
N
ILE
93
A
O
THR
175
A
O
THR
175
A
O
ALA
180
A
O
ALA
180
A
N
ARG
189
A
N
ARG
189
B
N
PHE
61
B
N
PHE
61
B
O
PHE
37
B
O
PHE
37
B
N
LEU
38
B
N
LEU
38
B
O
HIS
92
B
O
HIS
92
B
N
ILE
93
B
N
ILE
93
B
O
THR
175
B
O
THR
175
B
O
ALA
180
B
O
ALA
180
B
N
ARG
189
B
N
ARG
189
1
A
MSE
1
A
MSE
1
1
Y
1
A
LYS
2
A
LYS
2
1
Y
1
A
HIS
216
A
HIS
216
1
Y
1
A
ALA
217
A
ALA
217
1
Y
1
A
ASN
218
A
ASN
218
1
Y
1
A
HIS
219
A
HIS
219
1
Y
1
A
LYS
220
A
LYS
220
1
Y
1
B
MSE
1
B
MSE
1
1
Y
1
B
HIS
216
B
HIS
216
1
Y
1
B
ALA
217
B
ALA
217
1
Y
1
B
ASN
218
B
ASN
218
1
Y
1
B
HIS
219
B
HIS
219
1
Y
1
B
LYS
220
B
LYS
220
1
Y
1
A
GLN
31
-64.03
80.94
1
A
ALA
32
-32.22
101.67
1
A
SER
45
35.78
58.04
1
A
ASN
68
39.17
62.36
1
A
MSE
137
-171.48
144.79
1
A
GLN
139
-49.98
-17.34
1
A
ASP
185
-152.27
-7.59
1
B
ASN
68
39.60
58.12
1
B
GLU
136
-87.20
35.77
1
B
ASP
185
-150.49
-9.11
1
B
ASP
192
29.45
74.03
PROTEIN_REP.PARAM
PROTEIN.TOP
WATER_REP.PARAM
ION.PARAM
42.4
4.85
.00
.00
4.85
.00
-9.70
0.2430000
.005
0.2120000
0.2120000
2.20
39.36
2848
30767
28191
10.1
99.3
RANDOM
2423088.66
.00
1
RESTRAINED
THROUGHOUT
0
0
MAD
Engh & Huber
FLAT MODEL
46.96
.3548
.31
.26
5.00
.18
.16
2.20
39.36
87
3510
2
0
3421
.005
1.1
20.3
.67
0.2650000
.012
0.2360000
2.34
476
4083
4559
6
10.4
98.7
23.8
2.13
45
1I6O
30857
237761
0.0
0.0
0.0540000
1
25.2
7.7
99.0
0.2550000
2.13
2.25
4186
1
6.5
94.5
refinement
CNS
data reduction
MOSFLM
data scaling
CCP4
(SCALA)
phasing
CNS
PUTATIVE CARBONIC ANHYDRASE (E.C.4.2.1.1)
CRYSTAL STRUCTURE OF E. COLI BETA CARBONIC ANHYDRASE (ECCA)
1
N
N
1
N
N
2
N
N
2
N
N
3
N
N
3
N
N
A
ASP
3
A
ASP
3
HELX_P
A
ASP
22
A
ASP
22
1
1
20
A
GLY
24
A
GLY
24
HELX_P
A
GLN
31
A
GLN
31
1
2
8
A
PRO
48
A
PRO
48
HELX_P
A
GLY
54
A
GLY
54
1
3
7
A
ASP
74
A
ASP
74
HELX_P
A
VAL
87
A
VAL
87
1
4
14
A
CYS
101
A
CYS
101
HELX_P
A
ASN
110
A
ASN
110
1
5
10
A
LEU
115
A
LEU
115
HELX_P
A
HIS
130
A
HIS
130
1
6
16
A
HIS
130
A
HIS
130
HELX_P
A
GLU
136
A
GLU
136
1
7
7
A
ARG
141
A
ARG
141
HELX_P
A
SER
161
A
SER
161
1
8
21
A
SER
161
A
SER
161
HELX_P
A
ARG
170
A
ARG
170
1
9
10
A
ASN
197
A
ASN
197
HELX_P
A
LYS
213
A
LYS
213
1
10
17
B
ASP
3
B
ASP
3
HELX_P
B
VAL
19
B
VAL
19
1
11
17
B
PRO
23
B
PRO
23
HELX_P
B
ALA
30
B
ALA
30
1
12
8
B
PRO
48
B
PRO
48
HELX_P
B
GLY
54
B
GLY
54
1
13
7
B
ASP
74
B
ASP
74
HELX_P
B
VAL
87
B
VAL
87
1
14
14
B
CYS
101
B
CYS
101
HELX_P
B
ASN
110
B
ASN
110
1
15
10
B
LEU
115
B
LEU
115
HELX_P
B
HIS
130
B
HIS
130
1
16
16
B
HIS
130
B
HIS
130
HELX_P
B
GLU
136
B
GLU
136
1
17
7
B
PRO
138
B
PRO
138
HELX_P
B
GLU
140
B
GLU
140
5
18
3
B
ARG
141
B
ARG
141
HELX_P
B
SER
161
B
SER
161
1
19
21
B
SER
161
B
SER
161
HELX_P
B
ARG
170
B
ARG
170
1
20
10
B
ASN
197
B
ASN
197
HELX_P
B
LYS
215
B
LYS
215
1
21
19
covale
1.328
A
LYS
16
A
C
LYS
16
1_555
A
MSE
17
A
N
MSE
17
1_555
covale
1.332
A
MSE
17
A
C
MSE
17
1_555
A
LEU
18
A
N
LEU
18
1_555
covale
1.327
A
GLU
136
A
C
GLU
136
1_555
A
MSE
137
A
N
MSE
137
1_555
covale
1.344
A
MSE
137
A
C
MSE
137
1_555
A
PRO
138
A
N
PRO
138
1_555
covale
1.329
A
VAL
151
A
C
VAL
151
1_555
A
MSE
152
A
N
MSE
152
1_555
covale
1.333
A
MSE
152
A
C
MSE
152
1_555
A
GLU
153
A
N
GLU
153
1_555
covale
1.330
A
ILE
163
A
C
ILE
163
1_555
A
MSE
164
A
N
MSE
164
1_555
covale
1.329
A
MSE
164
A
C
MSE
164
1_555
A
GLN
165
A
N
GLN
165
1_555
metalc
2.387
A
ZN
301
C
ZN
ZN
1_555
A
CYS
101
A
SG
CYS
101
1_555
metalc
2.184
A
ZN
301
C
ZN
ZN
1_555
A
ASP
44
A
OD2
ASP
44
1_555
metalc
2.339
A
ZN
301
C
ZN
ZN
1_555
A
CYS
42
A
SG
CYS
42
1_555
metalc
2.181
A
ZN
301
C
ZN
ZN
1_555
A
HIS
98
A
NE2
HIS
98
1_555
covale
1.330
B
LYS
16
B
C
LYS
16
1_555
B
MSE
17
B
N
MSE
17
1_555
covale
1.326
B
MSE
17
B
C
MSE
17
1_555
B
LEU
18
B
N
LEU
18
1_555
covale
1.330
B
GLU
136
B
C
GLU
136
1_555
B
MSE
137
B
N
MSE
137
1_555
covale
1.340
B
MSE
137
B
C
MSE
137
1_555
B
PRO
138
B
N
PRO
138
1_555
covale
1.329
B
VAL
151
B
C
VAL
151
1_555
B
MSE
152
B
N
MSE
152
1_555
covale
1.331
B
MSE
152
B
C
MSE
152
1_555
B
GLU
153
B
N
GLU
153
1_555
covale
1.330
B
ILE
163
B
C
ILE
163
1_555
B
MSE
164
B
N
MSE
164
1_555
covale
1.328
B
MSE
164
B
C
MSE
164
1_555
B
GLN
165
B
N
GLN
165
1_555
metalc
2.452
B
ZN
302
D
ZN
ZN
1_555
B
CYS
42
B
SG
CYS
42
1_555
metalc
2.223
B
ZN
302
D
ZN
ZN
1_555
B
HIS
98
B
NE2
HIS
98
1_555
metalc
2.388
B
ZN
302
D
ZN
ZN
1_555
B
CYS
101
B
SG
CYS
101
1_555
metalc
2.123
B
ZN
302
D
ZN
ZN
1_555
B
ASP
44
B
OD2
ASP
44
1_555
LYASE
carbonic anhydrase, metalloenzyme, zinc coordination, pH-dependent activity, MAD phasing, LYASE
CAN_ECOLI
UNP
1
1
P61517
MKDIDTLISNNALWSKMLVEEDPGFFEKLAQAQKPRFLWIGCSDSRVPAERLTGLEPGELFVHRNVANLVIHTDLNCLSV
VQYAVDVLEVEHIIICGHYGCGGVQAAVENPELGLINNWLLHIRDIWFKHSSLLGEMPQERRLDTLCELNVMEQVYNLGH
STIMQSAWKRGQKVTIHGWAYGIHDGLLRDLDVTATNRETLEQRYRHGISNLKLKHANHK
1
220
1I6O
1
220
P61517
A
1
1
220
1
220
1I6O
1
220
P61517
B
1
1
220
1
MET
MODIFIED RESIDUE
MSE
1
1I6O
A
P61517
UNP
1
1
1
MET
MODIFIED RESIDUE
MSE
17
1I6O
A
P61517
UNP
17
17
1
MET
MODIFIED RESIDUE
MSE
137
1I6O
A
P61517
UNP
137
137
1
MET
MODIFIED RESIDUE
MSE
152
1I6O
A
P61517
UNP
152
152
1
MET
MODIFIED RESIDUE
MSE
164
1I6O
A
P61517
UNP
164
164
2
MET
MODIFIED RESIDUE
MSE
1
1I6O
B
P61517
UNP
1
1
2
MET
MODIFIED RESIDUE
MSE
17
1I6O
B
P61517
UNP
17
17
2
MET
MODIFIED RESIDUE
MSE
137
1I6O
B
P61517
UNP
137
137
2
MET
MODIFIED RESIDUE
MSE
152
1I6O
B
P61517
UNP
152
152
2
MET
MODIFIED RESIDUE
MSE
164
1I6O
B
P61517
UNP
164
164
5
5
parallel
parallel
parallel
anti-parallel
parallel
parallel
parallel
anti-parallel
A
LEU
60
A
LEU
60
A
ASN
65
A
ASN
65
A
PHE
37
A
PHE
37
A
CYS
42
A
CYS
42
A
HIS
92
A
HIS
92
A
HIS
98
A
HIS
98
A
THR
175
A
THR
175
A
TYR
181
A
TYR
181
A
LEU
188
A
LEU
188
A
ASP
190
A
ASP
190
B
LEU
60
B
LEU
60
B
ASN
65
B
ASN
65
B
PHE
37
B
PHE
37
B
CYS
42
B
CYS
42
B
HIS
92
B
HIS
92
B
HIS
98
B
HIS
98
B
THR
175
B
THR
175
B
TYR
181
B
TYR
181
B
ARG
189
B
ARG
189
B
ASP
190
B
ASP
190
BINDING SITE FOR RESIDUE ZN A 301
Software
4
BINDING SITE FOR RESIDUE ZN B 302
Software
4
A
CYS
42
A
CYS
42
4
1_555
A
ASP
44
A
ASP
44
4
1_555
A
HIS
98
A
HIS
98
4
1_555
A
CYS
101
A
CYS
101
4
1_555
B
CYS
42
B
CYS
42
4
1_555
B
ASP
44
B
ASP
44
4
1_555
B
HIS
98
B
HIS
98
4
1_555
B
CYS
101
B
CYS
101
4
1_555
95
P 43 2 2