Services
Research
Training
Industry
About us
Protein Data Bank
in Europe
Bringing Structure to Biology
Chemical Components in the PDB
pdbe.org/chem
Feedback
Share
Summary
Atoms
Bonds
In PDB Entries
Names
Descriptors
Complete Listing
Modify Search
Download Links
Molfile:
Ideal
Representative
PDB:
Ideal
Representative
Other:
mmCif
CML
Related compounds
Could not find any related compound in the PDB.
3D-Views
Ideal
Representative
PDB Links
PDB entries
PDBeChem : Chemical Bonds
Molecule :
BCB
Bonds between two atoms of the molecule
Total Number of Bonds: 146
50
10 per page
20 per page
Show all
Record
First Atom
Second Atom
First Element
Second Element
Bond Order Type
Bond Length
Bond Stereochemistry
Is Aromatic
1
MG
NA
MG
N
sing
1.91
N
N
2
MG
NB
MG
N
sing
1.89
N
N
3
MG
NC
MG
N
sing
1.91
N
N
4
MG
ND
MG
N
sing
1.89
N
N
5
CHA
C1A
C
C
sing
1.4
N
N
6
CHA
C4D
C
C
doub
1.41
N
N
7
CHA
CBD
C
C
sing
1.5
N
N
8
CHB
C4A
C
C
doub
1.38
N
N
9
CHB
C1B
C
C
sing
1.4
N
N
10
CHB
HHB
C
H
sing
1.08
N
N
11
CHC
C4B
C
C
sing
1.4
N
N
12
CHC
C1C
C
C
doub
1.39
N
N
13
CHC
HHC
C
H
sing
1.08
N
N
14
CHD
C4C
C
C
sing
1.41
N
N
15
CHD
C1D
C
C
doub
1.4
N
N
16
CHD
HHD
C
H
sing
1.08
N
N
17
NA
C1A
N
C
doub
1.34
N
N
18
NA
C4A
N
C
sing
1.34
N
N
19
C1A
C2A
C
C
sing
1.51
N
N
20
C2A
C3A
C
C
sing
1.56
N
N
21
C2A
CAA
C
C
sing
1.53
N
N
22
C2A
H2A
C
H
sing
1.09
N
N
23
C3A
C4A
C
C
sing
1.51
N
N
24
C3A
CMA
C
C
sing
1.53
N
N
25
C3A
H3A
C
H
sing
1.09
N
N
26
CMA
HMA1
C
H
sing
1.09
N
N
27
CMA
HMA2
C
H
sing
1.09
N
N
28
CMA
HMA3
C
H
sing
1.09
N
N
29
CAA
CBA
C
C
sing
1.53
N
N
30
CAA
HAA1
C
H
sing
1.09
N
N
31
CAA
HAA2
C
H
sing
1.09
N
N
32
CBA
CGA
C
C
sing
1.51
N
N
33
CBA
HBA1
C
H
sing
1.09
N
N
34
CBA
HBA2
C
H
sing
1.09
N
N
35
CGA
O1A
C
O
doub
1.21
N
N
36
CGA
O2A
C
O
sing
1.34
N
N
37
O2A
C1
O
C
sing
1.45
N
N
38
NB
C1B
N
C
sing
1.39
N
Y
39
NB
C4B
N
C
sing
1.38
N
Y
40
C1B
C2B
C
C
doub
1.38
N
Y
41
C2B
C3B
C
C
sing
1.42
N
Y
42
C2B
CMB
C
C
sing
1.51
N
N
43
C3B
C4B
C
C
doub
1.4
N
Y
44
C3B
CAB
C
C
sing
1.46
N
N
45
CMB
HMB1
C
H
sing
1.09
N
N
46
CMB
HMB2
C
H
sing
1.09
N
N
47
CMB
HMB3
C
H
sing
1.09
N
N
48
CAB
OBB
C
O
doub
1.21
N
N
49
CAB
CBB
C
C
sing
1.51
N
N
50
CBB
HBB1
C
H
sing
1.09
N
N
51
CBB
HBB2
C
H
sing
1.09
N
N
52
CBB
HBB3
C
H
sing
1.09
N
N
53
NC
C1C
N
C
sing
1.33
N
N
54
NC
C4C
N
C
doub
1.35
N
N
55
C1C
C2C
C
C
sing
1.51
N
N
56
C2C
C3C
C
C
sing
1.54
N
N
57
C2C
CMC
C
C
sing
1.53
N
N
58
C3C
C4C
C
C
sing
1.48
N
N
59
C3C
CAC
C
C
doub
1.33
E
N
60
CMC
HMC1
C
H
sing
1.09
N
N
61
CMC
HMC2
C
H
sing
1.09
N
N
62
CMC
HMC3
C
H
sing
1.09
N
N
63
CAC
CBC
C
C
sing
1.51
N
N
64
CAC
HAC1
C
H
sing
1.08
N
N
65
CBC
HBC1
C
H
sing
1.09
N
N
66
CBC
HBC2
C
H
sing
1.09
N
N
67
CBC
HBC3
C
H
sing
1.09
N
N
68
ND
C1D
N
C
sing
1.37
N
N
69
ND
C4D
N
C
sing
1.36
N
N
70
C1D
C2D
C
C
sing
1.39
N
N
71
C2D
C3D
C
C
doub
1.41
N
N
72
C2D
CMD
C
C
sing
1.51
N
N
73
C3D
C4D
C
C
sing
1.39
N
N
74
C3D
CAD
C
C
sing
1.47
N
N
75
CMD
HMD1
C
H
sing
1.09
N
N
76
CMD
HMD2
C
H
sing
1.09
N
N
77
CMD
HMD3
C
H
sing
1.09
N
N
78
CAD
OBD
C
O
doub
1.21
N
N
79
CAD
CBD
C
C
sing
1.53
N
N
80
CBD
CGD
C
C
sing
1.51
N
N
81
CBD
HBD
C
H
sing
1.09
N
N
82
CGD
O1D
C
O
doub
1.21
N
N
83
CGD
O2D
C
O
sing
1.34
N
N
84
O2D
CED
O
C
sing
1.45
N
N
85
CED
HED1
C
H
sing
1.09
N
N
86
CED
HED2
C
H
sing
1.09
N
N
87
CED
HED3
C
H
sing
1.09
N
N
88
C1
C2
C
C
sing
1.51
N
N
89
C1
H11
C
H
sing
1.09
N
N
90
C1
H12
C
H
sing
1.09
N
N
91
C2
C3
C
C
doub
1.31
E
N
92
C2
H2
C
H
sing
1.08
N
N
93
C3
C4
C
C
sing
1.51
N
N
94
C3
C5
C
C
sing
1.51
N
N
95
C4
H41
C
H
sing
1.09
N
N
96
C4
H42
C
H
sing
1.09
N
N
97
C4
H43
C
H
sing
1.09
N
N
98
C5
C6
C
C
sing
1.53
N
N
99
C5
H51
C
H
sing
1.09
N
N
100
C5
H52
C
H
sing
1.09
N
N
101
C6
C7
C
C
sing
1.53
N
N
102
C6
H61
C
H
sing
1.09
N
N
103
C6
H62
C
H
sing
1.09
N
N
104
C7
C8
C
C
sing
1.53
N
N
105
C7
H71
C
H
sing
1.09
N
N
106
C7
H72
C
H
sing
1.09
N
N
107
C8
C9
C
C
sing
1.53
N
N
108
C8
C10
C
C
sing
1.53
N
N
109
C8
H8
C
H
sing
1.09
N
N
110
C9
H91
C
H
sing
1.09
N
N
111
C9
H92
C
H
sing
1.09
N
N
112
C9
H93
C
H
sing
1.09
N
N
113
C10
C11
C
C
sing
1.53
N
N
114
C10
H101
C
H
sing
1.09
N
N
115
C10
H102
C
H
sing
1.09
N
N
116
C11
C12
C
C
sing
1.53
N
N
117
C11
H111
C
H
sing
1.09
N
N
118
C11
H112
C
H
sing
1.09
N
N
119
C12
C13
C
C
sing
1.53
N
N
120
C12
H121
C
H
sing
1.09
N
N
121
C12
H122
C
H
sing
1.09
N
N
122
C13
C14
C
C
sing
1.53
N
N
123
C13
C15
C
C
sing
1.53
N
N
124
C13
H13
C
H
sing
1.09
N
N
125
C14
H141
C
H
sing
1.09
N
N
126
C14
H142
C
H
sing
1.09
N
N
127
C14
H143
C
H
sing
1.09
N
N
128
C15
C16
C
C
sing
1.53
N
N
129
C15
H151
C
H
sing
1.09
N
N
130
C15
H152
C
H
sing
1.09
N
N
131
C16
C17
C
C
sing
1.53
N
N
132
C16
H161
C
H
sing
1.09
N
N
133
C16
H162
C
H
sing
1.09
N
N
134
C17
C18
C
C
sing
1.53
N
N
135
C17
H171
C
H
sing
1.09
N
N
136
C17
H172
C
H
sing
1.09
N
N
137
C18
C19
C
C
sing
1.53
N
N
138
C18
C20
C
C
sing
1.53
N
N
139
C18
H18
C
H
sing
1.09
N
N
140
C19
H191
C
H
sing
1.09
N
N
141
C19
H192
C
H
sing
1.09
N
N
142
C19
H193
C
H
sing
1.09
N
N
143
C20
H201
C
H
sing
1.09
N
N
144
C20
H202
C
H
sing
1.09
N
N
145
C20
H203
C
H
sing
1.09
N
N
146
C2C
H2C
C
H
sing
1.09
N
N