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 :
E04
Bonds between two atoms of the molecule
Total Number of Bonds: 66
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
O26
C20
O
C
doub
1.21
N
N
2
C20
C21
C
C
sing
1.51
N
N
3
C20
O19
C
O
sing
1.35
N
N
4
C21
C25
C
C
sing
1.53
N
N
5
C21
C24
C
C
sing
1.53
N
N
6
C21
C22
C
C
sing
1.53
N
N
7
C25
H251
C
H
sing
1.09
N
N
8
C25
H252
C
H
sing
1.09
N
N
9
C25
H253
C
H
sing
1.09
N
N
10
C24
H241
C
H
sing
1.09
N
N
11
C24
H242
C
H
sing
1.09
N
N
12
C24
H243
C
H
sing
1.09
N
N
13
C22
C23
C
C
sing
1.53
N
N
14
C22
H221
C
H
sing
1.09
N
N
15
C22
H222
C
H
sing
1.09
N
N
16
C23
C17
C
C
sing
1.53
N
N
17
C23
H231
C
H
sing
1.09
N
N
18
C23
H232
C
H
sing
1.09
N
N
19
C17
O19
C
O
sing
1.45
N
N
20
C17
C13
C
C
sing
1.52
N
N
21
C17
C16
C
C
sing
1.55
N
N
22
C13
C18
C
C
sing
1.53
N
N
23
C13
C14
C
C
sing
1.55
N
N
24
C13
C12
C
C
sing
1.52
N
N
25
C18
H181
C
H
sing
1.09
N
N
26
C18
H182
C
H
sing
1.09
N
N
27
C18
H183
C
H
sing
1.09
N
N
28
C14
C15
C
C
sing
1.53
N
N
29
C14
C8
C
C
sing
1.51
N
N
30
C14
H14
C
H
sing
1.09
N
N
31
C15
C16
C
C
sing
1.55
N
N
32
C15
H151
C
H
sing
1.09
N
N
33
C15
H152
C
H
sing
1.09
N
N
34
C16
H161
C
H
sing
1.09
N
N
35
C16
H162
C
H
sing
1.09
N
N
36
C8
C9
C
C
sing
1.53
N
N
37
C8
C7
C
C
sing
1.53
N
N
38
C8
H8
C
H
sing
1.09
N
N
39
C9
C11
C
C
sing
1.52
N
N
40
C9
C10
C
C
sing
1.5
N
N
41
C9
H9
C
H
sing
1.09
N
N
42
C11
C12
C
C
sing
1.54
N
N
43
C11
H111
C
H
sing
1.09
N
N
44
C11
H112
C
H
sing
1.09
N
N
45
C12
H121
C
H
sing
1.09
N
N
46
C12
H122
C
H
sing
1.09
N
N
47
C10
C1
C
C
doub
1.39
N
Y
48
C10
C5
C
C
sing
1.38
N
Y
49
C1
C2
C
C
sing
1.38
N
Y
50
C1
H1
C
H
sing
1.08
N
N
51
C2
C3
C
C
doub
1.4
N
Y
52
C2
H2
C
H
sing
1.08
N
N
53
C3
C27
C
C
sing
1.48
N
N
54
C3
C4
C
C
sing
1.39
N
Y
55
C27
O29
C
O
doub
1.22
N
N
56
C27
N28
C
N
sing
1.35
N
N
57
N28
H281
N
H
sing
0.97
N
N
58
N28
H282
N
H
sing
0.97
N
N
59
C4
C5
C
C
doub
1.39
N
Y
60
C4
H4
C
H
sing
1.08
N
N
61
C5
C6
C
C
sing
1.51
N
N
62
C6
C7
C
C
sing
1.53
N
N
63
C6
H61
C
H
sing
1.09
N
N
64
C6
H62
C
H
sing
1.09
N
N
65
C7
H71
C
H
sing
1.09
N
N
66
C7
H72
C
H
sing
1.09
N
N