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 :
A2K
Bonds between two atoms of the molecule
Total Number of Bonds: 81
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
O33
C1
O
C
doub
1.21
N
N
2
C1
C4
C
C
sing
1.41
N
N
3
C1
C3
C
C
sing
1.51
N
N
4
C4
C20
C
C
doub
1.35
N
N
5
C20
C6
C
C
sing
1.51
N
N
6
C20
C19
C
C
sing
1.46
N
N
7
C6
C7
C
C
sing
1.53
N
N
8
C19
C5
C
C
sing
1.51
N
N
9
C19
C8
C
C
doub
1.33
N
N
10
C5
C3
C
C
sing
1.54
N
N
11
C8
C11
C
C
sing
1.52
N
N
12
C8
C9
C
C
sing
1.51
N
N
13
C11
C10
C
C
sing
1.54
N
N
14
C11
C21
C
C
sing
1.51
N
N
15
C10
C12
C
C
sing
1.52
N
N
16
C12
C16
C
C
sing
1.53
N
N
17
C12
C13
C
C
sing
1.55
N
N
18
C12
C15
C
C
sing
1.53
N
N
19
C13
C14
C
C
sing
1.53
N
N
20
C13
C9
C
C
sing
1.52
N
N
21
C14
C2
C
C
sing
1.55
N
N
22
C9
C7
C
C
sing
1.52
N
N
23
C15
C22
C
C
sing
1.51
N
N
24
C15
C2
C
C
sing
1.56
N
N
25
C22
O24
C
O
doub
1.21
N
N
26
C22
C23
C
C
sing
1.51
N
N
27
C23
C31
C
C
sing
1.53
N
N
28
C23
C30
C
C
sing
1.53
N
N
29
C31
C30
C
C
sing
1.53
N
N
30
C2
C39
C
C
sing
1.51
N
N
31
C39
C40
C
C
doub
1.31
N
N
32
C21
C29
C
C
sing
1.38
N
Y
33
C21
C25
C
C
doub
1.38
N
Y
34
C29
C28
C
C
doub
1.38
N
Y
35
C28
C27
C
C
sing
1.39
N
Y
36
C27
C26
C
C
doub
1.39
N
Y
37
C27
C32
C
C
sing
1.48
N
N
38
C26
C25
C
C
sing
1.38
N
Y
39
C32
C38
C
C
sing
1.39
N
Y
40
C32
C34
C
C
doub
1.4
N
Y
41
C38
N37
C
N
doub
1.32
N
Y
42
N37
C36
N
C
sing
1.32
N
Y
43
C36
C35
C
C
doub
1.38
N
Y
44
C35
C34
C
C
sing
1.39
N
Y
45
C4
H4
C
H
sing
1.08
N
N
46
C3
H31C
C
H
sing
1.09
N
N
47
C3
H32C
C
H
sing
1.09
N
N
48
C6
H61C
C
H
sing
1.09
N
N
49
C6
H62C
C
H
sing
1.09
N
N
50
C7
H71C
C
H
sing
1.09
N
N
51
C7
H72C
C
H
sing
1.09
N
N
52
C5
H51C
C
H
sing
1.09
N
N
53
C5
H52C
C
H
sing
1.09
N
N
54
C11
H11
C
H
sing
1.09
N
N
55
C9
H9
C
H
sing
1.09
N
N
56
C10
H101
C
H
sing
1.09
N
N
57
C10
H102
C
H
sing
1.09
N
N
58
C16
H161
C
H
sing
1.09
N
N
59
C16
H162
C
H
sing
1.09
N
N
60
C16
H163
C
H
sing
1.09
N
N
61
C13
H13
C
H
sing
1.09
N
N
62
C15
H15
C
H
sing
1.09
N
N
63
C14
H141
C
H
sing
1.09
N
N
64
C14
H142
C
H
sing
1.09
N
N
65
C2
H2
C
H
sing
1.09
N
N
66
C23
H23
C
H
sing
1.09
N
N
67
C31
H311
C
H
sing
1.09
N
N
68
C31
H312
C
H
sing
1.09
N
N
69
C30
H301
C
H
sing
1.09
N
N
70
C30
H302
C
H
sing
1.09
N
N
71
C39
H39
C
H
sing
1.08
N
N
72
C40
H401
C
H
sing
1.08
N
N
73
C40
H402
C
H
sing
1.08
N
N
74
C29
H29
C
H
sing
1.08
N
N
75
C25
H25
C
H
sing
1.08
N
N
76
C28
H28
C
H
sing
1.08
N
N
77
C26
H26
C
H
sing
1.08
N
N
78
C38
H38
C
H
sing
1.08
N
N
79
C34
H34
C
H
sing
1.08
N
N
80
C36
H36
C
H
sing
1.08
N
N
81
C35
H35
C
H
sing
1.08
N
N