0.017779
0.000000
0.000000
0.000000
0.011893
0.000000
0.000000
0.000000
0.004778
0.00000
0.00000
0.00000
Karpowich, N.
Smith, P.C.
Hunt, J.F.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
16
90.00
90.00
90.00
56.247
84.082
209.297
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
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
US
J.BIOL.CHEM.
JBCHA3
0071
0021-9258
278
8429
8434
10.1074/jbc.M212239200
12468528
Crystal Structures of the BtuF Periplasmic-binding Protein for Vitamin B12 Suggest a Functionally Important Reduction in Protein Mobility upon Ligand Binding
2003
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
100
1
CCD
2002-10-15
BRANDEIS - B4
SINGLE WAVELENGTH
M
x-ray
1
0.95
1.0
X12C
NSLS
0.95
SYNCHROTRON
NSLS BEAMLINE X12C
28140.680
Vitamin B12 transport protein btuF
2
man
polymer
no
yes
APRVITLSPANTELAFAAGITPVGVSSYSDYPPQAQKIEQVSTWQG(MSE)NLERIVALKPDLVIAWRGGNAERQVDQLA
SLGIKV(MSE)WVDATSIEQIANALRQLAPWSPQPDKAEQAAQSLLDQYAQLKAQYADKPKKRVFLQFGINPPFTSGKES
IQNQVLEVCGGENIFKDSRVPWPQVSREQVLARSPQAIVITGGPDQIPKIKQYWGEQLKIPVIPLTSDWFERASPRIILA
AQQLCNALSQVDLEHHHHHH
APRVITLSPANTELAFAAGITPVGVSSYSDYPPQAQKIEQVSTWQGMNLERIVALKPDLVIAWRGGNAERQVDQLASLGI
KVMWVDATSIEQIANALRQLAPWSPQPDKAEQAAQSLLDQYAQLKAQYADKPKKRVFLQFGINPPFTSGKESIQNQVLEV
CGGENIFKDSRVPWPQVSREQVLARSPQAIVITGGPDQIPKIKQYWGEQLKIPVIPLTSDWFERASPRIILAAQQLCNAL
SQVDLEHHHHHH
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
n
n
n
n
n
n
n
n
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
562
Escherichia coli
469008
Escherichia coli BL21(DE3)
bL21(DE3)
PLASMID
PET24A
1
2.41
48.62
VAPOR DIFFUSION, HANGING DROP
4.6
acetate, PEG4000, (NH4)OAc, pH 4.6, VAPOR DIFFUSION, HANGING DROP, temperature 294K
294
repository
Initial release
Version format compliance
Version format compliance
1
0
2003-03-11
1
1
2008-04-28
1
2
2011-07-13
RCSB
Y
RCSB
2002-10-30
REL
REL
ALA
1
n
1
ALA
1
A
PRO
2
n
2
PRO
2
A
ARG
3
n
3
ARG
3
A
VAL
4
n
4
VAL
4
A
ILE
5
n
5
ILE
5
A
THR
6
n
6
THR
6
A
LEU
7
n
7
LEU
7
A
SER
8
n
8
SER
8
A
PRO
9
n
9
PRO
9
A
ALA
10
n
10
ALA
10
A
ASN
11
n
11
ASN
11
A
THR
12
n
12
THR
12
A
GLU
13
n
13
GLU
13
A
LEU
14
n
14
LEU
14
A
ALA
15
n
15
ALA
15
A
PHE
16
n
16
PHE
16
A
ALA
17
n
17
ALA
17
A
ALA
18
n
18
ALA
18
A
GLY
19
n
19
GLY
19
A
ILE
20
n
20
ILE
20
A
THR
21
n
21
THR
21
A
PRO
22
n
22
PRO
22
A
VAL
23
n
23
VAL
23
A
GLY
24
n
24
GLY
24
A
VAL
25
n
25
VAL
25
A
SER
26
n
26
SER
26
A
SER
27
n
27
SER
27
A
TYR
28
n
28
TYR
28
A
SER
29
n
29
SER
29
A
ASP
30
n
30
ASP
30
A
TYR
31
n
31
TYR
31
A
CPR
32
n
32
PRO
32
A
PRO
33
n
33
PRO
33
A
GLN
34
n
34
GLN
34
A
ALA
35
n
35
ALA
35
A
GLN
36
n
36
GLN
36
A
LYS
37
n
37
LYS
37
A
ILE
38
n
38
ILE
38
A
GLU
39
n
39
GLU
39
A
GLN
40
n
40
GLN
40
A
VAL
41
n
41
VAL
41
A
SER
42
n
42
SER
42
A
THR
43
n
43
THR
43
A
TRP
44
n
44
TRP
44
A
GLN
45
n
45
GLN
45
A
GLY
46
n
46
GLY
46
A
MSE
47
n
47
MSE
47
A
ASN
48
n
48
ASN
48
A
LEU
49
n
49
LEU
49
A
GLU
50
n
50
GLU
50
A
ARG
51
n
51
ARG
51
A
ILE
52
n
52
ILE
52
A
VAL
53
n
53
VAL
53
A
ALA
54
n
54
ALA
54
A
LEU
55
n
55
LEU
55
A
LYS
56
n
56
LYS
56
A
PRO
57
n
57
PRO
57
A
ASP
58
n
58
ASP
58
A
LEU
59
n
59
LEU
59
A
VAL
60
n
60
VAL
60
A
ILE
61
n
61
ILE
61
A
ALA
62
n
62
ALA
62
A
TRP
63
n
63
TRP
63
A
ARG
64
n
64
ARG
64
A
GLY
65
n
65
GLY
65
A
GLY
66
n
66
GLY
66
A
ASN
67
n
67
ASN
67
A
ALA
68
n
68
ALA
68
A
GLU
69
n
69
GLU
69
A
ARG
70
n
70
ARG
70
A
GLN
71
n
71
GLN
71
A
VAL
72
n
72
VAL
72
A
ASP
73
n
73
ASP
73
A
GLN
74
n
74
GLN
74
A
LEU
75
n
75
LEU
75
A
ALA
76
n
76
ALA
76
A
SER
77
n
77
SER
77
A
LEU
78
n
78
LEU
78
A
GLY
79
n
79
GLY
79
A
ILE
80
n
80
ILE
80
A
LYS
81
n
81
LYS
81
A
VAL
82
n
82
VAL
82
A
MSE
83
n
83
MSE
83
A
TRP
84
n
84
TRP
84
A
VAL
85
n
85
VAL
85
A
ASP
86
n
86
ASP
86
A
ALA
87
n
87
ALA
87
A
THR
88
n
88
THR
88
A
SER
89
n
89
SER
89
A
ILE
90
n
90
ILE
90
A
GLU
91
n
91
GLU
91
A
GLN
92
n
92
GLN
92
A
ILE
93
n
93
ILE
93
A
ALA
94
n
94
ALA
94
A
ASN
95
n
95
ASN
95
A
ALA
96
n
96
ALA
96
A
LEU
97
n
97
LEU
97
A
ARG
98
n
98
ARG
98
A
GLN
99
n
99
GLN
99
A
LEU
100
n
100
LEU
100
A
ALA
101
n
101
ALA
101
A
PRO
102
n
102
PRO
102
A
TRP
103
n
103
TRP
103
A
SER
104
n
104
SER
104
A
PRO
105
n
105
PRO
105
A
GLN
106
n
106
GLN
106
A
PRO
107
n
107
PRO
107
A
ASP
108
n
108
ASP
108
A
LYS
109
n
109
LYS
109
A
ALA
110
n
110
ALA
110
A
GLU
111
n
111
GLU
111
A
GLN
112
n
112
GLN
112
A
ALA
113
n
113
ALA
113
A
ALA
114
n
114
ALA
114
A
GLN
115
n
115
GLN
115
A
SER
116
n
116
SER
116
A
LEU
117
n
117
LEU
117
A
LEU
118
n
118
LEU
118
A
ASP
119
n
119
ASP
119
A
GLN
120
n
120
GLN
120
A
TYR
121
n
121
TYR
121
A
ALA
122
n
122
ALA
122
A
GLN
123
n
123
GLN
123
A
LEU
124
n
124
LEU
124
A
LYS
125
n
125
LYS
125
A
ALA
126
n
126
ALA
126
A
GLN
127
n
127
GLN
127
A
TYR
128
n
128
TYR
128
A
ALA
129
n
129
ALA
129
A
ASP
130
n
130
ASP
130
A
LYS
131
n
131
LYS
131
A
PRO
132
n
132
PRO
132
A
LYS
133
n
133
LYS
133
A
LYS
134
n
134
LYS
134
A
ARG
135
n
135
ARG
135
A
VAL
136
n
136
VAL
136
A
PHE
137
n
137
PHE
137
A
LEU
138
n
138
LEU
138
A
GLN
139
n
139
GLN
139
A
PHE
140
n
140
PHE
140
A
GLY
141
n
141
GLY
141
A
ILE
142
n
142
ILE
142
A
ASN
143
n
143
ASN
143
A
CPR
144
n
144
PRO
144
A
PRO
145
n
145
PRO
145
A
PHE
146
n
146
PHE
146
A
THR
147
n
147
THR
147
A
SER
148
n
148
SER
148
A
GLY
149
n
149
GLY
149
A
LYS
150
n
150
LYS
150
A
GLU
151
n
151
GLU
151
A
SER
152
n
152
SER
152
A
ILE
153
n
153
ILE
153
A
GLN
154
n
154
GLN
154
A
ASN
155
n
155
ASN
155
A
GLN
156
n
156
GLN
156
A
VAL
157
n
157
VAL
157
A
LEU
158
n
158
LEU
158
A
GLU
159
n
159
GLU
159
A
VAL
160
n
160
VAL
160
A
CYS
161
n
161
CYS
161
A
GLY
162
n
162
GLY
162
A
GLY
163
n
163
GLY
163
A
GLU
164
n
164
GLU
164
A
ASN
165
n
165
ASN
165
A
ILE
166
n
166
ILE
166
A
PHE
167
n
167
PHE
167
A
LYS
168
n
168
LYS
168
A
ASP
169
n
169
ASP
169
A
SER
170
n
170
SER
170
A
ARG
171
n
171
ARG
171
A
VAL
172
n
172
VAL
172
A
PRO
173
n
173
PRO
173
A
TRP
174
n
174
TRP
174
A
PRO
175
n
175
PRO
175
A
GLN
176
n
176
GLN
176
A
VAL
177
n
177
VAL
177
A
SER
178
n
178
SER
178
A
ARG
179
n
179
ARG
179
A
GLU
180
n
180
GLU
180
A
GLN
181
n
181
GLN
181
A
VAL
182
n
182
VAL
182
A
LEU
183
n
183
LEU
183
A
ALA
184
n
184
ALA
184
A
ARG
185
n
185
ARG
185
A
SER
186
n
186
SER
186
A
PRO
187
n
187
PRO
187
A
GLN
188
n
188
GLN
188
A
ALA
189
n
189
ALA
189
A
ILE
190
n
190
ILE
190
A
VAL
191
n
191
VAL
191
A
ILE
192
n
192
ILE
192
A
THR
193
n
193
THR
193
A
GLY
194
n
194
GLY
194
A
GLY
195
n
195
GLY
195
A
PRO
196
n
196
PRO
196
A
ASP
197
n
197
ASP
197
A
GLN
198
n
198
GLN
198
A
ILE
199
n
199
ILE
199
A
PRO
200
n
200
PRO
200
A
LYS
201
n
201
LYS
201
A
ILE
202
n
202
ILE
202
A
LYS
203
n
203
LYS
203
A
GLN
204
n
204
GLN
204
A
TYR
205
n
205
TYR
205
A
TRP
206
n
206
TRP
206
A
GLY
207
n
207
GLY
207
A
GLU
208
n
208
GLU
208
A
GLN
209
n
209
GLN
209
A
LEU
210
n
210
LEU
210
A
LYS
211
n
211
LYS
211
A
ILE
212
n
212
ILE
212
A
PRO
213
n
213
PRO
213
A
VAL
214
n
214
VAL
214
A
ILE
215
n
215
ILE
215
A
PRO
216
n
216
PRO
216
A
LEU
217
n
217
LEU
217
A
THR
218
n
218
THR
218
A
SER
219
n
219
SER
219
A
ASP
220
n
220
ASP
220
A
TRP
221
n
221
TRP
221
A
PHE
222
n
222
PHE
222
A
GLU
223
n
223
GLU
223
A
ARG
224
n
224
ARG
224
A
ALA
225
n
225
ALA
225
A
SER
226
n
226
SER
226
A
PRO
227
n
227
PRO
227
A
ARG
228
n
228
ARG
228
A
ILE
229
n
229
ILE
229
A
ILE
230
n
230
ILE
230
A
LEU
231
n
231
LEU
231
A
ALA
232
n
232
ALA
232
A
ALA
233
n
233
ALA
233
A
GLN
234
n
234
GLN
234
A
GLN
235
n
235
GLN
235
A
LEU
236
n
236
LEU
236
A
CYS
237
n
237
CYS
237
A
ASN
238
n
238
ASN
238
A
ALA
239
n
239
ALA
239
A
LEU
240
n
240
LEU
240
A
SER
241
n
241
SER
241
A
GLN
242
n
242
GLN
242
A
VAL
243
n
243
VAL
243
A
ASP
244
n
244
ASP
244
A
n
245
245
A
n
246
246
A
n
247
247
A
n
248
248
A
n
249
249
A
n
250
250
A
n
251
251
A
n
252
252
A
ALA
1001
n
1
ALA
1001
B
PRO
1002
n
2
PRO
1002
B
ARG
1003
n
3
ARG
1003
B
VAL
1004
n
4
VAL
1004
B
ILE
1005
n
5
ILE
1005
B
THR
1006
n
6
THR
1006
B
LEU
1007
n
7
LEU
1007
B
SER
1008
n
8
SER
1008
B
PRO
1009
n
9
PRO
1009
B
ALA
1010
n
10
ALA
1010
B
ASN
1011
n
11
ASN
1011
B
THR
1012
n
12
THR
1012
B
GLU
1013
n
13
GLU
1013
B
LEU
1014
n
14
LEU
1014
B
ALA
1015
n
15
ALA
1015
B
PHE
1016
n
16
PHE
1016
B
ALA
1017
n
17
ALA
1017
B
ALA
1018
n
18
ALA
1018
B
GLY
1019
n
19
GLY
1019
B
ILE
1020
n
20
ILE
1020
B
THR
1021
n
21
THR
1021
B
PRO
1022
n
22
PRO
1022
B
VAL
1023
n
23
VAL
1023
B
GLY
1024
n
24
GLY
1024
B
VAL
1025
n
25
VAL
1025
B
SER
1026
n
26
SER
1026
B
SER
1027
n
27
SER
1027
B
TYR
1028
n
28
TYR
1028
B
SER
1029
n
29
SER
1029
B
ASP
1030
n
30
ASP
1030
B
TYR
1031
n
31
TYR
1031
B
CPR
1032
n
32
PRO
1032
B
PRO
1033
n
33
PRO
1033
B
GLN
1034
n
34
GLN
1034
B
ALA
1035
n
35
ALA
1035
B
GLN
1036
n
36
GLN
1036
B
LYS
1037
n
37
LYS
1037
B
ILE
1038
n
38
ILE
1038
B
GLU
1039
n
39
GLU
1039
B
GLN
1040
n
40
GLN
1040
B
VAL
1041
n
41
VAL
1041
B
SER
1042
n
42
SER
1042
B
THR
1043
n
43
THR
1043
B
TRP
1044
n
44
TRP
1044
B
GLN
1045
n
45
GLN
1045
B
GLY
1046
n
46
GLY
1046
B
MSE
1047
n
47
MSE
1047
B
ASN
1048
n
48
ASN
1048
B
LEU
1049
n
49
LEU
1049
B
GLU
1050
n
50
GLU
1050
B
ARG
1051
n
51
ARG
1051
B
ILE
1052
n
52
ILE
1052
B
VAL
1053
n
53
VAL
1053
B
ALA
1054
n
54
ALA
1054
B
LEU
1055
n
55
LEU
1055
B
LYS
1056
n
56
LYS
1056
B
PRO
1057
n
57
PRO
1057
B
ASP
1058
n
58
ASP
1058
B
LEU
1059
n
59
LEU
1059
B
VAL
1060
n
60
VAL
1060
B
ILE
1061
n
61
ILE
1061
B
ALA
1062
n
62
ALA
1062
B
TRP
1063
n
63
TRP
1063
B
ARG
1064
n
64
ARG
1064
B
GLY
1065
n
65
GLY
1065
B
GLY
1066
n
66
GLY
1066
B
ASN
1067
n
67
ASN
1067
B
ALA
1068
n
68
ALA
1068
B
GLU
1069
n
69
GLU
1069
B
ARG
1070
n
70
ARG
1070
B
GLN
1071
n
71
GLN
1071
B
VAL
1072
n
72
VAL
1072
B
ASP
1073
n
73
ASP
1073
B
GLN
1074
n
74
GLN
1074
B
LEU
1075
n
75
LEU
1075
B
ALA
1076
n
76
ALA
1076
B
SER
1077
n
77
SER
1077
B
LEU
1078
n
78
LEU
1078
B
GLY
1079
n
79
GLY
1079
B
ILE
1080
n
80
ILE
1080
B
LYS
1081
n
81
LYS
1081
B
VAL
1082
n
82
VAL
1082
B
MSE
1083
n
83
MSE
1083
B
TRP
1084
n
84
TRP
1084
B
VAL
1085
n
85
VAL
1085
B
ASP
1086
n
86
ASP
1086
B
ALA
1087
n
87
ALA
1087
B
THR
1088
n
88
THR
1088
B
SER
1089
n
89
SER
1089
B
ILE
1090
n
90
ILE
1090
B
GLU
1091
n
91
GLU
1091
B
GLN
1092
n
92
GLN
1092
B
ILE
1093
n
93
ILE
1093
B
ALA
1094
n
94
ALA
1094
B
ASN
1095
n
95
ASN
1095
B
ALA
1096
n
96
ALA
1096
B
LEU
1097
n
97
LEU
1097
B
ARG
1098
n
98
ARG
1098
B
GLN
1099
n
99
GLN
1099
B
LEU
1100
n
100
LEU
1100
B
ALA
1101
n
101
ALA
1101
B
PRO
1102
n
102
PRO
1102
B
TRP
1103
n
103
TRP
1103
B
SER
1104
n
104
SER
1104
B
PRO
1105
n
105
PRO
1105
B
GLN
1106
n
106
GLN
1106
B
PRO
1107
n
107
PRO
1107
B
ASP
1108
n
108
ASP
1108
B
LYS
1109
n
109
LYS
1109
B
ALA
1110
n
110
ALA
1110
B
GLU
1111
n
111
GLU
1111
B
GLN
1112
n
112
GLN
1112
B
ALA
1113
n
113
ALA
1113
B
ALA
1114
n
114
ALA
1114
B
GLN
1115
n
115
GLN
1115
B
SER
1116
n
116
SER
1116
B
LEU
1117
n
117
LEU
1117
B
LEU
1118
n
118
LEU
1118
B
ASP
1119
n
119
ASP
1119
B
GLN
1120
n
120
GLN
1120
B
TYR
1121
n
121
TYR
1121
B
ALA
1122
n
122
ALA
1122
B
GLN
1123
n
123
GLN
1123
B
LEU
1124
n
124
LEU
1124
B
LYS
1125
n
125
LYS
1125
B
ALA
1126
n
126
ALA
1126
B
GLN
1127
n
127
GLN
1127
B
TYR
1128
n
128
TYR
1128
B
ALA
1129
n
129
ALA
1129
B
ASP
1130
n
130
ASP
1130
B
LYS
1131
n
131
LYS
1131
B
PRO
1132
n
132
PRO
1132
B
LYS
1133
n
133
LYS
1133
B
LYS
1134
n
134
LYS
1134
B
ARG
1135
n
135
ARG
1135
B
VAL
1136
n
136
VAL
1136
B
PHE
1137
n
137
PHE
1137
B
LEU
1138
n
138
LEU
1138
B
GLN
1139
n
139
GLN
1139
B
PHE
1140
n
140
PHE
1140
B
GLY
1141
n
141
GLY
1141
B
ILE
1142
n
142
ILE
1142
B
ASN
1143
n
143
ASN
1143
B
CPR
1144
n
144
PRO
1144
B
PRO
1145
n
145
PRO
1145
B
PHE
1146
n
146
PHE
1146
B
THR
1147
n
147
THR
1147
B
SER
1148
n
148
SER
1148
B
GLY
1149
n
149
GLY
1149
B
LYS
1150
n
150
LYS
1150
B
GLU
1151
n
151
GLU
1151
B
SER
1152
n
152
SER
1152
B
ILE
1153
n
153
ILE
1153
B
GLN
1154
n
154
GLN
1154
B
ASN
1155
n
155
ASN
1155
B
GLN
1156
n
156
GLN
1156
B
VAL
1157
n
157
VAL
1157
B
LEU
1158
n
158
LEU
1158
B
GLU
1159
n
159
GLU
1159
B
VAL
1160
n
160
VAL
1160
B
CYS
1161
n
161
CYS
1161
B
GLY
1162
n
162
GLY
1162
B
GLY
1163
n
163
GLY
1163
B
GLU
1164
n
164
GLU
1164
B
ASN
1165
n
165
ASN
1165
B
ILE
1166
n
166
ILE
1166
B
PHE
1167
n
167
PHE
1167
B
LYS
1168
n
168
LYS
1168
B
ASP
1169
n
169
ASP
1169
B
SER
1170
n
170
SER
1170
B
ARG
1171
n
171
ARG
1171
B
VAL
1172
n
172
VAL
1172
B
PRO
1173
n
173
PRO
1173
B
TRP
1174
n
174
TRP
1174
B
PRO
1175
n
175
PRO
1175
B
GLN
1176
n
176
GLN
1176
B
VAL
1177
n
177
VAL
1177
B
SER
1178
n
178
SER
1178
B
ARG
1179
n
179
ARG
1179
B
GLU
1180
n
180
GLU
1180
B
GLN
1181
n
181
GLN
1181
B
VAL
1182
n
182
VAL
1182
B
LEU
1183
n
183
LEU
1183
B
ALA
1184
n
184
ALA
1184
B
ARG
1185
n
185
ARG
1185
B
SER
1186
n
186
SER
1186
B
PRO
1187
n
187
PRO
1187
B
GLN
1188
n
188
GLN
1188
B
ALA
1189
n
189
ALA
1189
B
ILE
1190
n
190
ILE
1190
B
VAL
1191
n
191
VAL
1191
B
ILE
1192
n
192
ILE
1192
B
THR
1193
n
193
THR
1193
B
GLY
1194
n
194
GLY
1194
B
n
195
1195
B
n
196
1196
B
n
197
1197
B
n
198
1198
B
n
199
1199
B
n
200
1200
B
n
201
1201
B
n
202
1202
B
n
203
1203
B
n
204
1204
B
n
205
1205
B
n
206
1206
B
n
207
1207
B
n
208
1208
B
n
209
1209
B
n
210
1210
B
n
211
1211
B
ILE
1212
n
212
ILE
1212
B
PRO
1213
n
213
PRO
1213
B
VAL
1214
n
214
VAL
1214
B
ILE
1215
n
215
ILE
1215
B
PRO
1216
n
216
PRO
1216
B
LEU
1217
n
217
LEU
1217
B
THR
1218
n
218
THR
1218
B
SER
1219
n
219
SER
1219
B
ASP
1220
n
220
ASP
1220
B
TRP
1221
n
221
TRP
1221
B
PHE
1222
n
222
PHE
1222
B
GLU
1223
n
223
GLU
1223
B
ARG
1224
n
224
ARG
1224
B
ALA
1225
n
225
ALA
1225
B
SER
1226
n
226
SER
1226
B
PRO
1227
n
227
PRO
1227
B
ARG
1228
n
228
ARG
1228
B
ILE
1229
n
229
ILE
1229
B
ILE
1230
n
230
ILE
1230
B
LEU
1231
n
231
LEU
1231
B
ALA
1232
n
232
ALA
1232
B
ALA
1233
n
233
ALA
1233
B
GLN
1234
n
234
GLN
1234
B
GLN
1235
n
235
GLN
1235
B
LEU
1236
n
236
LEU
1236
B
CYS
1237
n
237
CYS
1237
B
ASN
1238
n
238
ASN
1238
B
ALA
1239
n
239
ALA
1239
B
LEU
1240
n
240
LEU
1240
B
SER
1241
n
241
SER
1241
B
GLN
1242
n
242
GLN
1242
B
VAL
1243
n
243
VAL
1243
B
ASP
1244
n
244
ASP
1244
B
n
245
1245
B
n
246
1246
B
n
247
1247
B
n
248
1248
B
n
249
1249
B
n
250
1250
B
n
251
1251
B
n
252
1252
B
author_and_software_defined_assembly
PISA
1
monomeric
author_defined_assembly
1
monomeric
A
MSE
47
SELENOMETHIONINE
A
MSE
47
MET
A
MSE
83
SELENOMETHIONINE
A
MSE
83
MET
B
MSE
1047
SELENOMETHIONINE
B
MSE
47
MET
B
MSE
1083
SELENOMETHIONINE
B
MSE
83
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
A
O
GLY
24
A
O
GLY
24
A
N
THR
6
A
N
THR
6
A
N
ILE
5
A
N
ILE
5
A
O
LEU
59
A
O
LEU
59
A
N
ALA
62
A
N
ALA
62
A
O
MSE
83
A
O
MSE
83
A
O
GLU
164
A
O
GLU
164
A
N
LYS
134
A
N
LYS
134
A
N
PHE
137
A
N
PHE
137
A
O
VAL
191
A
O
VAL
191
A
N
ILE
190
A
N
ILE
190
A
O
ILE
215
A
O
ILE
215
B
N
ILE
1005
B
N
ILE
5
B
O
ILE
1061
B
O
ILE
61
B
N
VAL
1060
B
N
VAL
60
B
O
MSE
1083
B
O
MSE
83
B
O
GLU
1164
B
O
GLU
164
B
N
VAL
1136
B
N
VAL
136
B
N
PHE
1137
B
N
PHE
137
B
O
VAL
1191
B
O
VAL
191
B
N
ILE
1190
B
N
ILE
190
B
O
ILE
1215
B
O
ILE
215
1
A
LEU
245
A
LEU
245
1
Y
1
A
GLU
246
A
GLU
246
1
Y
1
A
HIS
247
A
HIS
247
1
Y
1
A
HIS
248
A
HIS
248
1
Y
1
A
HIS
249
A
HIS
249
1
Y
1
A
HIS
250
A
HIS
250
1
Y
1
A
HIS
251
A
HIS
251
1
Y
1
A
HIS
252
A
HIS
252
1
Y
1
B
GLY
1195
B
GLY
195
1
Y
1
B
PRO
1196
B
PRO
196
1
Y
1
B
ASP
1197
B
ASP
197
1
Y
1
B
GLN
1198
B
GLN
198
1
Y
1
B
ILE
1199
B
ILE
199
1
Y
1
B
PRO
1200
B
PRO
200
1
Y
1
B
LYS
1201
B
LYS
201
1
Y
1
B
ILE
1202
B
ILE
202
1
Y
1
B
LYS
1203
B
LYS
203
1
Y
1
B
GLN
1204
B
GLN
204
1
Y
1
B
TYR
1205
B
TYR
205
1
Y
1
B
TRP
1206
B
TRP
206
1
Y
1
B
GLY
1207
B
GLY
207
1
Y
1
B
GLU
1208
B
GLU
208
1
Y
1
B
GLN
1209
B
GLN
209
1
Y
1
B
LEU
1210
B
LEU
210
1
Y
1
B
LYS
1211
B
LYS
211
1
Y
1
B
LEU
1245
B
LEU
245
1
Y
1
B
GLU
1246
B
GLU
246
1
Y
1
B
HIS
1247
B
HIS
247
1
Y
1
B
HIS
1248
B
HIS
248
1
Y
1
B
HIS
1249
B
HIS
249
1
Y
1
B
HIS
1250
B
HIS
250
1
Y
1
B
HIS
1251
B
HIS
251
1
Y
1
B
HIS
1252
B
HIS
252
1
Y
1
-20.64
2.20
120.60
99.96
B
B
B
C
N
CD
ASN
PRO
PRO
1143
1144
1144
Y
1
A
PRO
2
-37.16
132.43
1
A
LEU
7
-75.65
20.25
1
A
THR
43
-131.63
-145.63
1
A
MSE
47
89.78
113.62
1
A
ASP
86
-115.13
59.19
1
A
GLN
106
-176.55
98.74
1
A
LYS
131
-37.95
120.51
1
A
LYS
133
106.60
145.54
1
A
LYS
150
55.98
-80.34
1
A
SER
152
179.27
157.89
1
A
PHE
167
-79.08
33.28
1
A
GLN
176
-93.26
49.28
1
A
ALA
189
173.26
129.37
1
A
ASP
197
24.81
-104.07
1
A
ILE
199
-150.80
65.24
1
A
TRP
206
-95.15
55.49
1
A
GLU
208
-48.92
94.33
1
A
GLN
209
-172.86
-90.59
1
A
PRO
213
-33.24
130.56
1
A
ALA
225
-93.97
37.77
1
B
TYR
1028
-116.24
53.63
1
B
SER
1029
-91.97
58.65
1
B
THR
1043
-130.49
-131.02
1
B
MSE
1047
179.48
133.63
1
B
LYS
1056
35.07
73.06
1
B
ASN
1067
68.84
138.50
1
B
ALA
1068
40.44
72.32
1
B
LEU
1078
-69.51
4.20
1
B
ALA
1113
159.36
-40.12
1
B
ALA
1126
72.95
-38.22
1
B
PRO
1132
-61.52
7.69
1
B
LYS
1133
72.20
116.26
1
B
GLN
1139
-154.02
-116.21
1
B
PHE
1140
55.10
-164.51
1
B
PRO
1145
-93.34
-97.21
1
B
THR
1147
-140.50
-88.81
1
B
SER
1148
-166.36
-135.56
1
B
LYS
1150
74.17
-48.03
1
B
ASP
1169
-48.80
-14.63
1
B
SER
1186
82.00
59.83
1
B
ALA
1189
172.07
160.10
1
B
THR
1193
-82.09
44.59
1
B
SER
1219
-34.93
-108.32
1
B
TRP
1221
-132.25
-56.32
1
B
SER
1241
-67.55
16.59
PS_PARAM
PS_TOP
PARAM1
63.3
0.00
0.00
0.00
0.00
0.00
0.00
BULK SOLVENT MODEL USED
0.298
0.027
0.242
3.00
20.00
484
9684
5.0
12.7
RANDOM
1000000.00
0.010000
1
RESTRAINED
THROUGHOUT
1.0
MOLECULAR REPLACEMENT
Engh & Huber
0.77
0.95
3.50
0.14
3.00
20.00
0
3663
0
0
3663
0.009
1.3
24.0
1.38
0.53
0.069
0.508
3.14
59
945
8
5.9
10.5
56.6
3
20
1N4D
12293
1
data reduction
DENZO
data scaling
SCALEPACK
phasing
COMO
refinement
CNS
Vitamin B12 transport protein btuF
The Ligand-Free Structure of E coli BtuF, the Periplasmic Binding Protein for Vitamin B12
1
N
N
1
N
N
A
SER
8
A
SER
8
HELX_P
A
ALA
18
A
ALA
18
1
1
11
A
PRO
32
A
PRO
32
HELX_P
A
ILE
38
A
ILE
38
5
2
7
A
ASN
48
A
ASN
48
HELX_P
A
LYS
56
A
LYS
56
1
3
9
A
TRP
63
A
TRP
63
HELX_P
A
ASN
67
A
ASN
67
5
4
5
A
ALA
68
A
ALA
68
HELX_P
A
LEU
78
A
LEU
78
1
5
11
A
SER
89
A
SER
89
HELX_P
A
ALA
101
A
ALA
101
1
6
13
A
PRO
102
A
PRO
102
HELX_P
A
SER
104
A
SER
104
5
7
3
A
PRO
107
A
PRO
107
HELX_P
A
TYR
128
A
TYR
128
1
8
22
A
SER
152
A
SER
152
HELX_P
A
CYS
161
A
CYS
161
1
9
10
A
PHE
167
A
PHE
167
HELX_P
A
SER
170
A
SER
170
5
10
4
A
SER
178
A
SER
178
HELX_P
A
ARG
185
A
ARG
185
1
11
8
A
THR
218
A
THR
218
HELX_P
A
GLU
223
A
GLU
223
1
12
6
A
ARG
228
A
ARG
228
HELX_P
A
GLN
242
A
GLN
242
1
13
15
B
SER
1008
B
SER
8
HELX_P
B
ALA
1018
B
ALA
18
1
14
11
B
PRO
1032
B
PRO
32
HELX_P
B
ILE
1038
B
ILE
38
5
15
7
B
ASN
1048
B
ASN
48
HELX_P
B
LYS
1056
B
LYS
56
1
16
9
B
ALA
1068
B
ALA
68
HELX_P
B
LEU
1078
B
LEU
78
1
17
11
B
SER
1089
B
SER
89
HELX_P
B
LEU
1100
B
LEU
100
1
18
12
B
ALA
1101
B
ALA
101
HELX_P
B
SER
1104
B
SER
104
5
19
4
B
GLN
1106
B
GLN
106
HELX_P
B
LYS
1125
B
LYS
125
1
20
20
B
SER
1152
B
SER
152
HELX_P
B
CYS
1161
B
CYS
161
1
21
10
B
GLU
1180
B
GLU
180
HELX_P
B
SER
1186
B
SER
186
1
22
7
B
THR
1218
B
THR
218
HELX_P
B
GLU
1223
B
GLU
223
1
23
6
B
ARG
1228
B
ARG
228
HELX_P
B
SER
1241
B
SER
241
1
24
14
disulf
2.044
A
CYS
161
A
SG
CYS
161
1_555
A
CYS
237
A
SG
CYS
237
1_555
disulf
2.722
B
CYS
1161
B
SG
CYS
161
1_555
B
CYS
1237
B
SG
CYS
237
1_555
covale
1.327
A
GLY
46
A
C
GLY
46
1_555
A
MSE
47
A
N
MSE
47
1_555
covale
1.324
A
MSE
47
A
C
MSE
47
1_555
A
ASN
48
A
N
ASN
48
1_555
covale
1.325
A
VAL
82
A
C
VAL
82
1_555
A
MSE
83
A
N
MSE
83
1_555
covale
1.323
A
MSE
83
A
C
MSE
83
1_555
A
TRP
84
A
N
TRP
84
1_555
covale
1.330
B
GLY
1046
B
C
GLY
46
1_555
B
MSE
1047
B
N
MSE
47
1_555
covale
1.333
B
MSE
1047
B
C
MSE
47
1_555
B
ASN
1048
B
N
ASN
48
1_555
covale
1.319
B
VAL
1082
B
C
VAL
82
1_555
B
MSE
1083
B
N
MSE
83
1_555
covale
1.334
B
MSE
1083
B
C
MSE
83
1_555
B
TRP
1084
B
N
TRP
84
1_555
TRANSPORT PROTEIN
ABC transporter, Vitamin B12, periplasmic binding protein, transmembrane transport, TRANSPORT PROTEIN
A
TYR
31
A
TYR
31
1
A
PRO
32
A
PRO
32
-0.89
A
ASN
143
A
ASN
143
1
A
PRO
144
A
PRO
144
0.02
B
TYR
1031
B
TYR
31
1
B
PRO
1032
B
PRO
32
0.37
B
ASN
1143
B
ASN
143
1
B
PRO
1144
B
PRO
144
-0.21
BTUF_ECOLI
UNP
1
23
P37028
APRVITLSPANTELAFAAGITPVGVSSYSDYPPQAQKIEQVSTWQGMNLERIVALKPDLVIAWRGGNAERQVDQLASLGI
KVMWVDATSIEQIANALRQLAPWSPQPDKAEQAAQSLLDQYAQLKAQYADKPKKRVFLQFGINPPFTSGKESIQNQVLEV
CGGENIFKDSRVPWPQVSREQVLARSPQAIVITGGPDQIPKIKQYWGEQLKIPVIPLTSDWFERASPRIILAAQQLCNAL
SQVD
23
266
1N4D
1
244
P37028
A
1
1
244
23
266
1N4D
1001
1244
P37028
B
1
1
244
1
MET
MODIFIED RESIDUE
MSE
47
1N4D
A
P37028
UNP
69
47
1
MET
MODIFIED RESIDUE
MSE
83
1N4D
A
P37028
UNP
105
83
1
EXPRESSION TAG
LEU
245
1N4D
A
P37028
UNP
245
1
EXPRESSION TAG
GLU
246
1N4D
A
P37028
UNP
246
1
EXPRESSION TAG
HIS
247
1N4D
A
P37028
UNP
247
1
EXPRESSION TAG
HIS
248
1N4D
A
P37028
UNP
248
1
EXPRESSION TAG
HIS
249
1N4D
A
P37028
UNP
249
1
EXPRESSION TAG
HIS
250
1N4D
A
P37028
UNP
250
1
EXPRESSION TAG
HIS
251
1N4D
A
P37028
UNP
251
1
EXPRESSION TAG
HIS
252
1N4D
A
P37028
UNP
252
2
MET
MODIFIED RESIDUE
MSE
1047
1N4D
B
P37028
UNP
69
47
2
MET
MODIFIED RESIDUE
MSE
1083
1N4D
B
P37028
UNP
105
83
2
EXPRESSION TAG
LEU
1245
1N4D
B
P37028
UNP
245
2
EXPRESSION TAG
GLU
1246
1N4D
B
P37028
UNP
246
2
EXPRESSION TAG
HIS
1247
1N4D
B
P37028
UNP
247
2
EXPRESSION TAG
HIS
1248
1N4D
B
P37028
UNP
248
2
EXPRESSION TAG
HIS
1249
1N4D
B
P37028
UNP
249
2
EXPRESSION TAG
HIS
1250
1N4D
B
P37028
UNP
250
2
EXPRESSION TAG
HIS
1251
1N4D
B
P37028
UNP
251
2
EXPRESSION TAG
HIS
1252
1N4D
B
P37028
UNP
252
4
4
3
4
parallel
parallel
parallel
parallel
parallel
parallel
parallel
parallel
parallel
parallel
parallel
A
GLY
24
A
GLY
24
A
VAL
25
A
VAL
25
A
VAL
4
A
VAL
4
A
THR
6
A
THR
6
A
LEU
59
A
LEU
59
A
ALA
62
A
ALA
62
A
VAL
82
A
VAL
82
A
TRP
84
A
TRP
84
A
GLY
163
A
GLY
163
A
ASN
165
A
ASN
165
A
LYS
134
A
LYS
134
A
LEU
138
A
LEU
138
A
ILE
190
A
ILE
190
A
ILE
192
A
ILE
192
A
VAL
214
A
VAL
214
A
PRO
216
A
PRO
216
B
VAL
1004
B
VAL
4
B
THR
1006
B
THR
6
B
LEU
1059
B
LEU
59
B
ALA
1062
B
ALA
62
B
VAL
1082
B
VAL
82
B
TRP
1084
B
TRP
84
B
GLY
1163
B
GLY
163
B
ASN
1165
B
ASN
165
B
LYS
1134
B
LYS
134
B
LEU
1138
B
LEU
138
B
ILE
1190
B
ILE
190
B
ILE
1192
B
ILE
192
B
VAL
1214
B
VAL
214
B
PRO
1216
B
PRO
216
20
C 2 2 21