0.010917
0.006303
0.000000
0.000000
0.012606
0.000000
0.000000
0.000000
0.003724
0.00000
0.00000
0.00000
Ohlendorf, D.H.
Tronrud, D.E.
Matthews, B.W.
http://mmcif.pdb.org/dictionaries/ascii/mmcif_pdbx.dic
72
90.00
90.00
120.00
91.600
91.600
268.500
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
O4 P -3
94.971
PHOSPHATE ION
non-polymer
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
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
P
N
260
N
O
N
261
N
O
N
262
N
O
N
263
N
O
N
264
N
N
N
265
S
C
N
266
N
C
N
267
N
O
N
268
N
C
N
269
N
C
N
270
N
C
N
271
N
O
N
272
N
H
N
273
N
H
N
274
N
H
N
275
N
H
N
276
N
H
N
277
N
H
N
278
N
H
N
279
N
H
N
280
N
H
N
281
N
N
N
282
S
C
N
283
N
C
N
284
N
O
N
285
N
C
N
286
N
O
N
287
N
O
N
288
N
H
N
289
N
H
N
290
N
H
N
291
N
H
N
292
N
H
N
293
N
H
N
294
N
H
N
295
N
N
N
296
S
C
N
297
N
C
N
298
N
O
N
299
R
C
N
300
N
O
N
301
N
C
N
302
N
O
N
303
N
H
N
304
N
H
N
305
N
H
N
306
N
H
N
307
N
H
N
308
N
H
N
309
N
H
N
310
N
H
N
311
N
H
N
312
N
N
N
313
S
C
N
314
N
C
N
315
N
O
N
316
N
C
Y
317
N
C
Y
318
N
C
Y
319
N
C
Y
320
N
C
Y
321
N
C
Y
322
N
C
N
323
N
O
N
324
N
O
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
H
N
335
N
H
N
336
N
N
N
337
S
C
N
338
N
C
N
339
N
O
N
340
N
C
N
341
N
C
N
342
N
C
N
343
N
O
N
344
N
H
N
345
N
H
N
346
N
H
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
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
doub
N
248
N
sing
N
249
N
sing
N
250
N
sing
N
251
N
sing
N
252
N
sing
N
253
N
sing
N
254
N
sing
N
255
N
sing
N
256
N
sing
N
257
N
doub
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
sing
N
271
N
sing
N
272
N
sing
N
273
N
sing
N
274
N
doub
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
sing
N
284
N
sing
N
285
N
sing
N
286
N
sing
N
287
N
doub
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
sing
N
300
N
sing
N
301
N
sing
N
302
N
sing
N
303
N
doub
N
304
N
sing
N
305
N
sing
N
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
doub
N
313
N
sing
Y
314
N
doub
N
315
N
sing
Y
316
N
sing
N
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
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
UK
J.Mol.Biol.
JMOBAK
0070
0022-2836
280
129
136
10.1006/jmbi.1998.1849
9653036
Refined structure of Cro repressor protein from bacteriophage lambda suggests both flexibility and plasticity.
1998
US
J.Biol.Chem.
JBCHA3
0071
0021-9258
261
8608
Different Interactions Used by Cro Repressor in Specific and Nonspecific DNA Binding
1986
SW
Chem.Scr.
CSRPB9
0184
0004-2056
26B
251
Use of Protein Sequence and Structure to Infer Distant Evolutionary Relationships
1986
New York : Wiley
US
Biological Macromolecules and Assemblies. V.2: Nucleic Acids and Interactive Proteins
BMASEJ
2184
0-471-87076-5
2
234
The Structure of Cro Repressor Protein
1985
US
J.Biomol.Struct.Dyn.
JBSDD6
0646
0739-1102
1
553
High Resolution Structural Studies of Cro Repressor Protein and Implications for DNA Recognition
1983
US
Science
SCIEAS
0038
0036-8075
221
1020
DNA-Binding Proteins
1983
UK
J.Mol.Biol.
JMOBAK
0070
0022-2836
169
757
Comparison of the Structures of Cro and Lambda Repressor Proteins from Bacteriophage Lambda
1983
UK
J.Mol.Biol.
JMOBAK
0070
0022-2836
168
903
Crystallographic Data for Complexes of the Cro Repressor with DNA
1983
US
Annu.Rev.Biophys.Bioeng.
ABPBBK
0923
0084-6589
12
259
Structural Studies of Protein-Nucleic Acid Interactions
1983
NE
Trends Biochem.Sci.
TBSCDB
0946
0968-0004
8
25
How Does Cro Repressor Recognize its DNA Target Sites?
1983
US
Cold Spring Harbor Symp.Quant.Biol.
CSHSAZ
0421
0091-7451
47
427
Cro Repressor Protein and its Interaction with DNA
1983
GW
J.Mol.Evol.
JMEVAU
0910
0022-2844
19
109
Many Gene-Regulatory Proteins Appear to Have a Similar Alpha-Helical Fold that Binds DNA and Evolved from a Common Precursor
1983
UK
Nature
NATUAS
0006
0028-0836
298
718
The Molecular Basis of DNA-Protein Recognition Inferred from the Structure of Cro Repressor
1982
US
Proc.Natl.Acad.Sci.USA
PNASA6
0040
0027-8424
79
3097
Structural Similarity in the DNA-Binding Domains of Catabolite Gene Activator and Cro Repressor Proteins
1982
US
Proc.Natl.Acad.Sci.USA
PNASA6
0040
0027-8424
79
1428
Structure of the DNA-Binding Region of Lac Repressor Inferred from its Homology with Cro Repressor
1982
UK
J.Mol.Biol.
JMOBAK
0070
0022-2836
159
745
Proposed Alpha-Helical Super-Secondary Structure Associated with Protein-DNA Recognition
1982
UK
Nature
NATUAS
0006
0028-0836
290
754
Structure of the Cro Repressor from Bacteriophage Lambda and its Interaction with DNA
1981
UK
J.Mol.Biol.
JMOBAK
0070
0022-2836
130
507
The Structure of a Repressor. Crystallographic Data for the Cro Regulatory Protein of Bacteriophage Lambda
1979
UK
Nature
NATUAS
0006
0028-0836
270
275
Amino Acid Sequence of Cro Regulatory Protein of Bacteriophage Lambda
1977
1
2
10.2210/pdb5cro/pdb
pdb_00005cro
1.000000
0.000000
0.000000
0.000000
1.000000
0.000000
0.000000
0.000000
1.000000
0.00000
0.00000
0.00000
290
1
FILM
FILM
NI FILTER
M
x-ray
1
1.5418
1.0
1.5418
ROTATING ANODE
ELLIOTT GX-21
WATER MOLECULES AND TWO PHOSPHATE RADICALS
7375.484
CRO REPRESSOR PROTEIN
4
nat
polymer
94.971
PHOSPHATE ION
2
syn
non-polymer
18.015
water
33
nat
water
no
no
MEQRITLKDYAMRFGQTKTAKDLGVYQSAINKAIHAGRKIFLTINADGSVYAEEVKPFPSNKKTTA
MEQRITLKDYAMRFGQTKTAKDLGVYQSAINKAIHAGRKIFLTINADGSVYAEEVKPFPSNKKTTA
O,A,B,C
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
Lambda-like viruses
sample
10710
Enterobacteria phage lambda
4
3.7
67.
THE DATA WERE COLLECTED IN THE EARLY 1980'S.
microdialysis or batch
7.5
CRYSTALS WERE OBTAINED IN THE PRESENCE OF ABOUT 1.2M PHOSPHATE BY MICRODIALYSIS OR BATCH TECHNIQUES., pH 7.5, microdialysis or batch
chem_comp_atom
chem_comp_bond
database_2
pdbx_database_status
struct_site
repository
Initial release
Version format compliance
Version format compliance
Data collection
Database references
Derived calculations
Other
1
0
1998-06-17
1
1
2008-03-25
1
2
2011-07-13
1
3
2024-03-06
_database_2.pdbx_DOI
_database_2.pdbx_database_accession
_pdbx_database_status.process_site
_struct_site.pdbx_auth_asym_id
_struct_site.pdbx_auth_comp_id
_struct_site.pdbx_auth_seq_id
1998-06-17
SPRSDE
Y
BNL
1998-04-17
REL
REL
PO4
PHOSPHATE ION
HOH
water
PO4
100
2
PO4
PO4
100
O
PO4
101
2
PO4
PO4
101
O
HOH
503
3
HOH
HOH
503
O
HOH
507
3
HOH
HOH
507
O
HOH
511
3
HOH
HOH
511
O
HOH
515
3
HOH
HOH
515
O
HOH
535
3
HOH
HOH
535
O
HOH
549
3
HOH
HOH
549
O
HOH
570
3
HOH
HOH
570
O
HOH
1002
3
HOH
HOH
1002
O
HOH
510
3
HOH
HOH
510
A
HOH
528
3
HOH
HOH
528
A
HOH
552
3
HOH
HOH
552
A
HOH
801
3
HOH
HOH
801
A
HOH
901
3
HOH
HOH
901
A
HOH
502
3
HOH
HOH
502
B
HOH
504
3
HOH
HOH
504
B
HOH
505
3
HOH
HOH
505
B
HOH
506
3
HOH
HOH
506
B
HOH
526
3
HOH
HOH
526
B
HOH
539
3
HOH
HOH
539
B
HOH
567
3
HOH
HOH
567
B
HOH
729
3
HOH
HOH
729
B
HOH
903
3
HOH
HOH
903
B
HOH
1001
3
HOH
HOH
1001
B
HOH
1003
3
HOH
HOH
1003
B
HOH
1008
3
HOH
HOH
1008
B
HOH
1009
3
HOH
HOH
1009
B
HOH
517
3
HOH
HOH
517
C
HOH
522
3
HOH
HOH
522
C
HOH
523
3
HOH
HOH
523
C
HOH
534
3
HOH
HOH
534
C
HOH
547
3
HOH
HOH
547
C
HOH
1004
3
HOH
HOH
1004
C
HOH
1006
3
HOH
HOH
1006
C
MET
1
n
1
MET
1
O
GLU
2
n
2
GLU
2
O
GLN
3
n
3
GLN
3
O
ARG
4
n
4
ARG
4
O
ILE
5
n
5
ILE
5
O
THR
6
n
6
THR
6
O
LEU
7
n
7
LEU
7
O
LYS
8
n
8
LYS
8
O
ASP
9
n
9
ASP
9
O
TYR
10
n
10
TYR
10
O
ALA
11
n
11
ALA
11
O
MET
12
n
12
MET
12
O
ARG
13
n
13
ARG
13
O
PHE
14
n
14
PHE
14
O
GLY
15
n
15
GLY
15
O
GLN
16
n
16
GLN
16
O
THR
17
n
17
THR
17
O
LYS
18
n
18
LYS
18
O
THR
19
n
19
THR
19
O
ALA
20
n
20
ALA
20
O
LYS
21
n
21
LYS
21
O
ASP
22
n
22
ASP
22
O
LEU
23
n
23
LEU
23
O
GLY
24
n
24
GLY
24
O
VAL
25
n
25
VAL
25
O
TYR
26
n
26
TYR
26
O
GLN
27
n
27
GLN
27
O
SER
28
n
28
SER
28
O
ALA
29
n
29
ALA
29
O
ILE
30
n
30
ILE
30
O
ASN
31
n
31
ASN
31
O
LYS
32
n
32
LYS
32
O
ALA
33
n
33
ALA
33
O
ILE
34
n
34
ILE
34
O
HIS
35
n
35
HIS
35
O
ALA
36
n
36
ALA
36
O
GLY
37
n
37
GLY
37
O
ARG
38
n
38
ARG
38
O
LYS
39
n
39
LYS
39
O
ILE
40
n
40
ILE
40
O
PHE
41
n
41
PHE
41
O
LEU
42
n
42
LEU
42
O
THR
43
n
43
THR
43
O
ILE
44
n
44
ILE
44
O
ASN
45
n
45
ASN
45
O
ALA
46
n
46
ALA
46
O
ASP
47
n
47
ASP
47
O
GLY
48
n
48
GLY
48
O
SER
49
n
49
SER
49
O
VAL
50
n
50
VAL
50
O
TYR
51
n
51
TYR
51
O
ALA
52
n
52
ALA
52
O
GLU
53
n
53
GLU
53
O
GLU
54
n
54
GLU
54
O
VAL
55
n
55
VAL
55
O
LYS
56
n
56
LYS
56
O
PRO
57
n
57
PRO
57
O
PHE
58
n
58
PHE
58
O
PRO
59
n
59
PRO
59
O
SER
60
n
60
SER
60
O
n
61
61
O
n
62
62
O
n
63
63
O
n
64
64
O
n
65
65
O
n
66
66
O
MET
1
n
1
MET
1
A
GLU
2
n
2
GLU
2
A
GLN
3
n
3
GLN
3
A
ARG
4
n
4
ARG
4
A
ILE
5
n
5
ILE
5
A
THR
6
n
6
THR
6
A
LEU
7
n
7
LEU
7
A
LYS
8
n
8
LYS
8
A
ASP
9
n
9
ASP
9
A
TYR
10
n
10
TYR
10
A
ALA
11
n
11
ALA
11
A
MET
12
n
12
MET
12
A
ARG
13
n
13
ARG
13
A
PHE
14
n
14
PHE
14
A
GLY
15
n
15
GLY
15
A
GLN
16
n
16
GLN
16
A
THR
17
n
17
THR
17
A
LYS
18
n
18
LYS
18
A
THR
19
n
19
THR
19
A
ALA
20
n
20
ALA
20
A
LYS
21
n
21
LYS
21
A
ASP
22
n
22
ASP
22
A
LEU
23
n
23
LEU
23
A
GLY
24
n
24
GLY
24
A
VAL
25
n
25
VAL
25
A
TYR
26
n
26
TYR
26
A
GLN
27
n
27
GLN
27
A
SER
28
n
28
SER
28
A
ALA
29
n
29
ALA
29
A
ILE
30
n
30
ILE
30
A
ASN
31
n
31
ASN
31
A
LYS
32
n
32
LYS
32
A
ALA
33
n
33
ALA
33
A
ILE
34
n
34
ILE
34
A
HIS
35
n
35
HIS
35
A
ALA
36
n
36
ALA
36
A
GLY
37
n
37
GLY
37
A
ARG
38
n
38
ARG
38
A
LYS
39
n
39
LYS
39
A
ILE
40
n
40
ILE
40
A
PHE
41
n
41
PHE
41
A
LEU
42
n
42
LEU
42
A
THR
43
n
43
THR
43
A
ILE
44
n
44
ILE
44
A
ASN
45
n
45
ASN
45
A
ALA
46
n
46
ALA
46
A
ASP
47
n
47
ASP
47
A
GLY
48
n
48
GLY
48
A
SER
49
n
49
SER
49
A
VAL
50
n
50
VAL
50
A
TYR
51
n
51
TYR
51
A
ALA
52
n
52
ALA
52
A
GLU
53
n
53
GLU
53
A
GLU
54
n
54
GLU
54
A
VAL
55
n
55
VAL
55
A
LYS
56
n
56
LYS
56
A
PRO
57
n
57
PRO
57
A
PHE
58
n
58
PHE
58
A
PRO
59
n
59
PRO
59
A
SER
60
n
60
SER
60
A
ASN
61
n
61
ASN
61
A
n
62
62
A
n
63
63
A
n
64
64
A
n
65
65
A
n
66
66
A
MET
1
n
1
MET
1
B
GLU
2
n
2
GLU
2
B
GLN
3
n
3
GLN
3
B
ARG
4
n
4
ARG
4
B
ILE
5
n
5
ILE
5
B
THR
6
n
6
THR
6
B
LEU
7
n
7
LEU
7
B
LYS
8
n
8
LYS
8
B
ASP
9
n
9
ASP
9
B
TYR
10
n
10
TYR
10
B
ALA
11
n
11
ALA
11
B
MET
12
n
12
MET
12
B
ARG
13
n
13
ARG
13
B
PHE
14
n
14
PHE
14
B
GLY
15
n
15
GLY
15
B
GLN
16
n
16
GLN
16
B
THR
17
n
17
THR
17
B
LYS
18
n
18
LYS
18
B
THR
19
n
19
THR
19
B
ALA
20
n
20
ALA
20
B
LYS
21
n
21
LYS
21
B
ASP
22
n
22
ASP
22
B
LEU
23
n
23
LEU
23
B
GLY
24
n
24
GLY
24
B
VAL
25
n
25
VAL
25
B
TYR
26
n
26
TYR
26
B
GLN
27
n
27
GLN
27
B
SER
28
n
28
SER
28
B
ALA
29
n
29
ALA
29
B
ILE
30
n
30
ILE
30
B
ASN
31
n
31
ASN
31
B
LYS
32
n
32
LYS
32
B
ALA
33
n
33
ALA
33
B
ILE
34
n
34
ILE
34
B
HIS
35
n
35
HIS
35
B
ALA
36
n
36
ALA
36
B
GLY
37
n
37
GLY
37
B
ARG
38
n
38
ARG
38
B
LYS
39
n
39
LYS
39
B
ILE
40
n
40
ILE
40
B
PHE
41
n
41
PHE
41
B
LEU
42
n
42
LEU
42
B
THR
43
n
43
THR
43
B
ILE
44
n
44
ILE
44
B
ASN
45
n
45
ASN
45
B
ALA
46
n
46
ALA
46
B
ASP
47
n
47
ASP
47
B
GLY
48
n
48
GLY
48
B
SER
49
n
49
SER
49
B
VAL
50
n
50
VAL
50
B
TYR
51
n
51
TYR
51
B
ALA
52
n
52
ALA
52
B
GLU
53
n
53
GLU
53
B
GLU
54
n
54
GLU
54
B
VAL
55
n
55
VAL
55
B
LYS
56
n
56
LYS
56
B
PRO
57
n
57
PRO
57
B
PHE
58
n
58
PHE
58
B
PRO
59
n
59
PRO
59
B
SER
60
n
60
SER
60
B
ASN
61
n
61
ASN
61
B
n
62
62
B
n
63
63
B
n
64
64
B
n
65
65
B
n
66
66
B
MET
1
n
1
MET
1
C
GLU
2
n
2
GLU
2
C
GLN
3
n
3
GLN
3
C
ARG
4
n
4
ARG
4
C
ILE
5
n
5
ILE
5
C
THR
6
n
6
THR
6
C
LEU
7
n
7
LEU
7
C
LYS
8
n
8
LYS
8
C
ASP
9
n
9
ASP
9
C
TYR
10
n
10
TYR
10
C
ALA
11
n
11
ALA
11
C
MET
12
n
12
MET
12
C
ARG
13
n
13
ARG
13
C
PHE
14
n
14
PHE
14
C
GLY
15
n
15
GLY
15
C
GLN
16
n
16
GLN
16
C
THR
17
n
17
THR
17
C
LYS
18
n
18
LYS
18
C
THR
19
n
19
THR
19
C
ALA
20
n
20
ALA
20
C
LYS
21
n
21
LYS
21
C
ASP
22
n
22
ASP
22
C
LEU
23
n
23
LEU
23
C
GLY
24
n
24
GLY
24
C
VAL
25
n
25
VAL
25
C
TYR
26
n
26
TYR
26
C
GLN
27
n
27
GLN
27
C
SER
28
n
28
SER
28
C
ALA
29
n
29
ALA
29
C
ILE
30
n
30
ILE
30
C
ASN
31
n
31
ASN
31
C
LYS
32
n
32
LYS
32
C
ALA
33
n
33
ALA
33
C
ILE
34
n
34
ILE
34
C
HIS
35
n
35
HIS
35
C
ALA
36
n
36
ALA
36
C
GLY
37
n
37
GLY
37
C
ARG
38
n
38
ARG
38
C
LYS
39
n
39
LYS
39
C
ILE
40
n
40
ILE
40
C
PHE
41
n
41
PHE
41
C
LEU
42
n
42
LEU
42
C
THR
43
n
43
THR
43
C
ILE
44
n
44
ILE
44
C
ASN
45
n
45
ASN
45
C
ALA
46
n
46
ALA
46
C
ASP
47
n
47
ASP
47
C
GLY
48
n
48
GLY
48
C
SER
49
n
49
SER
49
C
VAL
50
n
50
VAL
50
C
TYR
51
n
51
TYR
51
C
ALA
52
n
52
ALA
52
C
GLU
53
n
53
GLU
53
C
GLU
54
n
54
GLU
54
C
VAL
55
n
55
VAL
55
C
LYS
56
n
56
LYS
56
C
PRO
57
n
57
PRO
57
C
PHE
58
n
58
PHE
58
C
PRO
59
n
59
PRO
59
C
SER
60
n
60
SER
60
C
ASN
61
n
61
ASN
61
C
n
62
62
C
n
63
63
C
n
64
64
C
n
65
65
C
n
66
66
C
0.1930000
author_and_software_defined_assembly
PISA
2
dimeric
author_and_software_defined_assembly
PISA
2
dimeric
software_defined_assembly
PISA
24
24-meric
software_defined_assembly
PISA
4
tetrameric
1270
-9
7960
1280
-10
8010
44270
-175
66830
5510
-21
13000
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
-0.5000000000
-0.8660254038
0.0000000000
0.8660254038
-0.5000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
2_445
-y-1,x-y-1,z
crystal symmetry operation
-45.8000000000
-79.3279269867
0.0000000000
-0.5000000000
0.8660254038
0.0000000000
-0.8660254038
-0.5000000000
0.0000000000
0.0000000000
0.0000000000
1.0000000000
3_545
-x+y,-x-1,z
crystal symmetry operation
45.8000000000
-79.3279269867
0.0000000000
-0.5000000000
0.8660254038
0.0000000000
0.8660254038
0.5000000000
0.0000000000
0.0000000000
0.0000000000
-1.0000000000
16_544
y+1/3,x-1/3,-z-1/3
crystal symmetry operation
45.8000000000
-26.4426423289
-89.5000000000
1.0000000000
0.0000000000
0.0000000000
0.0000000000
-1.0000000000
0.0000000000
0.0000000000
0.0000000000
-1.0000000000
17_434
x-y-2/3,-y-4/3,-z-1/3
crystal symmetry operation
0.0000000000
-105.7705693155
-89.5000000000
-0.5000000000
-0.8660254038
0.0000000000
-0.8660254038
0.5000000000
0.0000000000
0.0000000000
0.0000000000
-1.0000000000
18_444
-x-2/3,-x+y-1/3,-z-1/3
crystal symmetry operation
-45.8000000000
-26.4426423289
-89.5000000000
O
O
GLN
3
A
O
GLN
3
O
N
ILE
44
A
N
ILE
44
O
O
PHE
41
A
O
PHE
41
O
N
GLU
53
A
N
GLU
53
A
O
GLN
3
B
O
GLN
3
A
N
ILE
44
B
N
ILE
44
A
O
PHE
41
B
O
PHE
41
A
N
GLU
53
B
N
GLU
53
B
O
GLN
3
C
O
GLN
3
B
N
ILE
44
C
N
ILE
44
B
O
PHE
41
C
O
PHE
41
B
N
GLU
53
C
N
GLU
53
C
O
GLN
3
D
O
GLN
3
C
N
ILE
44
D
N
ILE
44
C
O
PHE
41
D
O
PHE
41
C
N
GLU
53
D
N
GLU
53
1
O
PO4
100
E
PO4
1
A
O
ASN
61
B
O
ASN
61
1
Y
1
A
CB
ASN
61
B
CB
ASN
61
1
Y
1
A
CG
ASN
61
B
CG
ASN
61
1
Y
1
A
OD1
ASN
61
B
OD1
ASN
61
1
Y
1
A
ND2
ASN
61
B
ND2
ASN
61
1
Y
1
B
O
ASN
61
C
O
ASN
61
1
Y
1
B
CG
ASN
61
C
CG
ASN
61
1
Y
1
B
OD1
ASN
61
C
OD1
ASN
61
1
Y
1
B
ND2
ASN
61
C
ND2
ASN
61
1
Y
1
C
C
ASN
61
D
C
ASN
61
1
Y
1
C
O
ASN
61
D
O
ASN
61
1
Y
1
C
CB
ASN
61
D
CB
ASN
61
1
Y
1
C
CG
ASN
61
D
CG
ASN
61
1
Y
1
C
OD1
ASN
61
D
OD1
ASN
61
1
Y
1
C
ND2
ASN
61
D
ND2
ASN
61
1
Y
1
O
ASN
61
A
ASN
61
1
Y
1
O
LYS
62
A
LYS
62
1
Y
1
O
LYS
63
A
LYS
63
1
Y
1
O
THR
64
A
THR
64
1
Y
1
O
THR
65
A
THR
65
1
Y
1
O
ALA
66
A
ALA
66
1
Y
1
A
LYS
62
B
LYS
62
1
Y
1
A
LYS
63
B
LYS
63
1
Y
1
A
THR
64
B
THR
64
1
Y
1
A
THR
65
B
THR
65
1
Y
1
A
ALA
66
B
ALA
66
1
Y
1
B
LYS
62
C
LYS
62
1
Y
1
B
LYS
63
C
LYS
63
1
Y
1
B
THR
64
C
THR
64
1
Y
1
B
THR
65
C
THR
65
1
Y
1
B
ALA
66
C
ALA
66
1
Y
1
C
LYS
62
D
LYS
62
1
Y
1
C
LYS
63
D
LYS
63
1
Y
1
C
THR
64
D
THR
64
1
Y
1
C
THR
65
D
THR
65
1
Y
1
C
ALA
66
D
ALA
66
1
Y
1
-5.59
0.90
118.30
112.71
O
O
O
CB
CG
OD1
ASP
ASP
ASP
9
9
9
N
1
-12.49
1.80
110.60
98.11
O
O
O
N
CA
CB
TYR
TYR
TYR
10
10
10
N
1
-4.25
0.60
121.00
116.75
O
O
O
CB
CG
CD2
TYR
TYR
TYR
10
10
10
N
1
6.70
0.90
118.30
125.00
O
O
O
CB
CG
OD1
ASP
ASP
ASP
22
22
22
N
1
-7.25
0.90
118.30
111.05
O
O
O
CB
CG
OD2
ASP
ASP
ASP
22
22
22
N
1
4.69
0.50
120.30
124.99
O
O
O
NE
CZ
NH1
ARG
ARG
ARG
38
38
38
N
1
-7.08
0.90
118.30
111.22
O
O
O
CB
CG
OD1
ASP
ASP
ASP
47
47
47
N
1
-10.30
1.40
112.40
102.10
A
A
A
CA
CB
CG2
THR
THR
THR
6
6
6
N
1
5.59
0.90
118.30
123.89
A
A
A
CB
CG
OD1
ASP
ASP
ASP
9
9
9
N
1
-6.09
0.90
118.30
112.21
A
A
A
CB
CG
OD2
ASP
ASP
ASP
9
9
9
N
1
3.86
0.50
120.30
124.16
A
A
A
NE
CZ
NH1
ARG
ARG
ARG
13
13
13
N
1
-3.71
0.50
120.30
116.59
A
A
A
NE
CZ
NH2
ARG
ARG
ARG
13
13
13
N
1
5.64
0.90
118.30
123.94
A
A
A
CB
CG
OD1
ASP
ASP
ASP
22
22
22
N
1
-6.11
0.90
118.30
112.19
A
A
A
CB
CG
OD2
ASP
ASP
ASP
22
22
22
N
1
-6.99
0.90
118.30
111.31
A
A
A
CB
CG
OD1
ASP
ASP
ASP
47
47
47
N
1
6.58
0.90
118.30
124.88
A
A
A
CB
CG
OD2
ASP
ASP
ASP
47
47
47
N
1
4.41
0.50
120.30
124.71
B
B
B
NE
CZ
NH1
ARG
ARG
ARG
4
4
4
N
1
-5.10
0.50
120.30
115.20
B
B
B
NE
CZ
NH2
ARG
ARG
ARG
4
4
4
N
1
7.08
0.90
118.30
125.38
B
B
B
CB
CG
OD2
ASP
ASP
ASP
9
9
9
N
1
-13.07
2.00
110.40
97.33
B
B
B
CB
CA
C
PHE
PHE
PHE
14
14
14
N
1
-9.39
1.50
110.90
101.51
B
B
B
CA
CB
CG2
VAL
VAL
VAL
55
55
55
N
1
6.08
0.90
118.30
124.38
C
C
C
CB
CG
OD1
ASP
ASP
ASP
9
9
9
N
1
-13.02
2.00
110.40
97.38
C
C
C
CB
CA
C
MET
MET
MET
12
12
12
N
1
-9.71
1.40
112.40
102.69
C
C
C
CA
CB
CG2
THR
THR
THR
17
17
17
N
1
-9.91
0.90
118.30
108.39
C
C
C
CB
CG
OD1
ASP
ASP
ASP
22
22
22
N
1
-9.04
1.40
110.10
101.06
C
C
C
N
CA
CB
ALA
ALA
ALA
46
46
46
N
1
O
O
CD
OE2
GLU
GLU
2
2
0.085
0.011
1.252
1.337
N
1
O
O
CD
OE2
GLU
GLU
54
54
0.087
0.011
1.252
1.339
N
1
A
A
CD
OE2
GLU
GLU
2
2
0.113
0.011
1.252
1.365
N
1
A
A
CD
OE2
GLU
GLU
54
54
0.085
0.011
1.252
1.337
N
1
B
B
CD
OE1
GLU
GLU
2
2
0.102
0.011
1.252
1.354
N
1
C
C
CD
OE2
GLU
GLU
2
2
0.082
0.011
1.252
1.334
N
1
C
C
CD
OE1
GLU
GLU
53
53
0.067
0.011
1.252
1.319
N
1
C
C
CE
CE
MET
MET
12
12
2.00
1_555
4_555
1
A
SER
60
-74.71
-143.66
1
B
GLN
27
-21.97
-62.36
1
C
GLN
16
-37.47
-26.63
1
C
SER
60
170.60
74.87
0.1930000
2.3
20.
17141
17141
84.
1
TNT BCORREL V1.0
0.
MIR
TNT PROTGEO V1.0
BABINET SCALING
120.
0.749
2.3
20.
33
1940
10
0
1897
0.019
1937
0.8
3.271
2593
1.3
19.578
1168
0.
0
25.359
8
1.
0.008
44
2.
0.014
279
5.
7.323
1937
1.
0.021
35
10.
30.5
2.3
20.
5CRO
17141
0.
0.0960000
1
84.
model building
LYNN
TEN EYCK'S NEWREF
refinement
TNT
1
data reduction
OSCTST
data reduction
VENUS
data scaling
CCP4
(ROTAVATA)
data scaling
ODPROC
phasing
NEWREF
(LYNN TEN EYCK)
REFINED STRUCTURE OF CRO REPRESSOR PROTEIN FROM BACTERIOPHAGE LAMBDA
1
N
N
1
N
N
1
N
N
1
N
N
2
N
N
2
N
N
3
N
N
3
N
N
3
N
N
3
N
N
THE DIMER OF CRO THAT EXISTS IN SOLUTION IS PRESUMED TO BE
THE O-B DIMER WHICH IS GENERALLY USED AS THE MODEL OF THE
DIMER WHICH BINDS DNA.
O
LEU
7
A
LEU
7
HELX_P
O
LEU
23
A
LEU
23
1
1
17
O
GLN
27
A
GLN
27
HELX_P
O
HIS
35
A
HIS
35
1
2
9
A
LEU
7
B
LEU
7
HELX_P
A
LEU
23
B
LEU
23
1
3
17
A
GLN
27
B
GLN
27
HELX_P
A
HIS
35
B
HIS
35
1
4
9
B
LEU
7
C
LEU
7
HELX_P
B
ASP
22
C
ASP
22
1
5
16
B
GLN
27
C
GLN
27
HELX_P
B
HIS
35
C
HIS
35
1
6
9
C
LEU
7
D
LEU
7
HELX_P
C
PHE
14
D
PHE
14
1
7
8
C
GLN
16
D
GLN
16
HELX_P
C
ASP
22
D
ASP
22
1
8
7
C
GLN
27
D
GLN
27
HELX_P
C
ALA
36
D
ALA
36
1
9
10
GENE REGULATING PROTEIN
GENE REGULATING PROTEIN, TRANSCRIPTION REGULATION
O
PHE
58
A
PHE
58
1
O
PRO
59
A
PRO
59
-0.96
A
PHE
58
B
PHE
58
1
A
PRO
59
B
PRO
59
-2.81
B
PHE
58
C
PHE
58
1
B
PRO
59
C
PRO
59
-1.38
C
PHE
58
D
PHE
58
1
C
PRO
59
D
PRO
59
3.48
given
-0.993830
0.051600
-0.024070
0.053970
0.992290
-0.111600
0.018120
-0.112720
-0.993460
-27.08300
-1.73020
-48.90700
given
0.310920
-0.023960
0.950130
0.022810
-0.999210
-0.032660
0.950160
0.031830
-0.310130
10.47380
-73.83000
-14.84880
given
-0.310670
-0.123320
-0.942480
-0.087740
-0.983590
0.157630
-0.946460
0.131670
0.294750
-44.54910
-70.74680
-24.48760
RCRO_LAMBD
UNP
1
1
P03040
MEQRITLKDYAMRFGQTKTAKDLGVYQSAINKAIHAGRKIFLTINADGSVYAEEVKPFPSNKKTTA
1
66
5CRO
1
66
P03040
O
1
1
66
1
66
5CRO
1
66
P03040
A
1
1
66
1
66
5CRO
1
66
P03040
B
1
1
66
1
66
5CRO
1
66
P03040
C
1
1
66
3
3
3
3
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
anti-parallel
O
GLN
3
A
GLN
3
O
THR
6
A
THR
6
O
ILE
40
A
ILE
40
O
ILE
44
A
ILE
44
O
VAL
50
A
VAL
50
O
GLU
54
A
GLU
54
A
GLN
3
B
GLN
3
A
THR
6
B
THR
6
A
ILE
40
B
ILE
40
A
ILE
44
B
ILE
44
A
VAL
50
B
VAL
50
A
GLU
54
B
GLU
54
B
GLN
3
C
GLN
3
B
THR
6
C
THR
6
B
ILE
40
C
ILE
40
B
ILE
44
C
ILE
44
B
VAL
50
C
VAL
50
B
GLU
54
C
GLU
54
C
GLN
3
D
GLN
3
C
THR
6
D
THR
6
C
ILE
40
D
ILE
40
C
ILE
44
D
ILE
44
C
VAL
50
D
VAL
50
C
GLU
54
D
GLU
54
BINDING SITE FOR RESIDUE PO4 O 100
O
PO4
100
Software
11
BINDING SITE FOR RESIDUE PO4 O 101
O
PO4
101
Software
5
O
SER
28
A
SER
28
11
3_445
O
SER
28
A
SER
28
11
2_455
O
SER
28
A
SER
28
11
1_555
O
LYS
32
A
LYS
32
11
3_445
O
LYS
32
A
LYS
32
11
1_555
O
LYS
32
A
LYS
32
11
2_455
O
PO4
101
F
PO4
11
2_455
O
PO4
101
F
PO4
11
1_555
O
PO4
101
F
PO4
11
3_445
O
HOH
549
G
HOH
11
3_445
O
HOH
549
G
HOH
11
2_455
O
LYS
32
A
LYS
32
5
3_445
O
LYS
32
A
LYS
32
5
1_555
O
PO4
100
E
PO4
5
3_445
O
PO4
100
E
PO4
5
2_455
O
PO4
100
E
PO4
5
1_555
155
H 3 2