Analysis, comparison, visualization of contact residues & interfacial waters of antibody-antigen structures/models

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Structure 1s78: Insights into ErbB signaling from the structure of the ErbB2-pertuzumab complex
Heavy chain: blue color; Light chain: violet color; Antigen: salmon color; Contact residues: shown in sticks


Number of contact residues of heavy chain = 27
Contact residues of heavy chain have 11 Hbonds, 64 hydrophobic, 121 vdW, 2 ionic interactions with antigen, and 0 Hbonds with interfacial waters
No.
Contact Residues of Heavy Chain
Region Chothia
Secondary Structure
Solvent Accessibility
Number of Hbonds with Antigen
Number of Hydrophobic Interactions
Number of VdW Interactions
Number of Ionic Interactions
Number of Hbonds with Interfacial Waters
1
THR F 28
CDR-H1
Coil
Exposed
0
1
0
0
0
2
THR F 30
CDR-H1
Coil
Intermediate
1
0
2
0
0
3
ASP F 31
CDR-H1
Coil
Exposed
2
3
11
0
0
4
TYR F 32
CDR-H1
Coil
Intermediate
1
6
12
0
0
5
THR F 33
Framework
Strand
Intermediate
0
3
1
0
0
6
ASN F 52
CDR-H2
Strand
Exposed
1
0
5
0
0
7
PRO F 52A
CDR-H2
Strand
Buried
0
0
0
0
0
8
ASN F 53
CDR-H2
Coil
Exposed
3
1
15
0
0
9
SER F 54
CDR-H2
Coil
Exposed
0
0
9
0
0
10
GLY F 55
CDR-H2
Strand
Exposed
0
0
5
0
0
11
SER F 57
Framework
Strand
Intermediate
0
0
1
0
0
12
ILE F 58
Framework
Strand
Exposed
0
23
12
0
0
13
TYR F 59
Framework
Strand
Exposed
0
11
6
0
0
14
GLN F 61
Framework
Coil
Exposed
1
0
7
0
0
15
LYS F 64
Framework
Coil
Exposed
0
0
3
2
0
16
VAL F 71
Framework
Strand
Intermediate
0
0
1
0
0
17
ARG F 73
Framework
Coil
Exposed
0
0
5
0
0
18
SER F 74
Framework
Coil
Exposed
0
0
1
0
0
19
LYS F 75
Framework
Coil
Exposed
1
0
1
0
0
20
ARG F 94
Framework
Strand
Buried
0
0
1
0
0
21
LEU F 96
CDR-H3
Strand
Intermediate
0
10
7
0
0
22
GLY F 97
CDR-H3
Coil
Exposed
0
0
1
0
0
23
PRO F 98
CDR-H3
Coil
Exposed
0
6
9
0
0
24
SER F 99
CDR-H3
Coil
Exposed
0
0
0
0
0
25
TYR F 99B
CDR-H3
Strand
Exposed
1
0
5
0
0
26
ASP F 101
CDR-H3
Strand
Exposed
0
0
1
0
0
27
TYR F 102
CDR-H3
Coil
Exposed
0
0
0
0
0
Interactions of contact residues of heavy chain Structure of contact residues of heavy chain Detailed contact residues of heavy chain


Number of contact residues of light chain = 7
Contact residues of light chain have 0 Hbonds, 22 hydrophobic, 24 vdW, 0 ionic interactions with antigen, and 0 Hbonds with interfacial waters
No.
Contact Residues of Light Chain
Region Chothia
Secondary Structure
Solvent Accessibility
Number of Hbonds with Antigen
Number of Hydrophobic Interactions
Number of VdW Interactions
Number of Ionic Interactions
Number of Hbonds with Interfacial Waters
1
LEU E 46
Framework
Strand
Intermediate
0
0
0
0
0
2
TYR E 49
Framework
Coil
Exposed
0
0
8
0
0
3
SER E 50
CDR-L2
Coil
Intermediate
0
0
0
0
0
4
TYR E 53
CDR-L2
Coil
Exposed
0
7
11
0
0
5
TYR E 55
CDR-L2
Coil
Exposed
0
1
1
0
0
6
THR E 56
CDR-L2
Coil
Exposed
0
0
0
0
0
7
TYR E 94
CDR-L3
Coil
Exposed
0
14
4
0
0
Interactions of contact residues of light chain Structure of contact residues of light chain Detailed contact residues of light chain


Number of contact residues of antigen = 29
Contact residues of antigen have 11 Hbonds, 86 hydrophobic, 145 vdW, 2 ionic interactions with antibody, and 0 Hbonds with interfacial waters
No.
Contact Residues of Antigen
Interact with Antibody Chain
Secondary Structure
Solvent Accessibility
Number of Hbonds with Antibody
Number of Hydrophobic Interactions
Number of VdW Interactions
Number of Ionic Interactions
Number of Hbonds with Interfacial Waters
1
LYS B 128
Heavy
Coil
Exposed
0
0
1
0
0
2
GLN B 156
Heavy
Coil
Exposed
1
0
1
0
0
3
PHE B 236
Heavy
Coil
Intermediate
0
0
5
0
0
4
LEU B 244
Heavy
Strand
Exposed
0
0
0
0
0
5
HIS B 245
Heavy
Coil
Exposed
0
0
13
0
0
6
CYS B 246
Heavy
Coil
Buried
1
0
3
0
0
7
ALA B 248
Heavy
Coil
Exposed
0
0
2
0
0
8
TYR B 252
Heavy
Strand
Exposed
0
7
4
0
0
9
THR B 254
Heavy
Strand
Exposed
1
0
6
0
0
10
ASP B 255
Heavy & Light
Coil
Exposed
0
0
2
2
0
11
THR B 256
Light
Coil
Exposed
0
0
1
0
0
12
PHE B 257
Heavy & Light
Strand
Exposed
0
41
20
0
0
13
THR B 268
Heavy
Coil
Intermediate
1
1
4
0
0
14
GLY B 270
Heavy
Coil
Intermediate
0
0
0
0
0
15
THR B 284
Heavy
Coil
Buried
0
0
0
0
0
16
ASP B 285
Heavy
Coil
Exposed
0
1
1
0
0
17
VAL B 286
Heavy
Coil
Exposed
2
6
14
0
0
18
GLY B 287
Heavy
Strand
Intermediate
0
0
3
0
0
19
SER B 288
Heavy
Strand
Exposed
2
0
4
0
0
20
THR B 290
Heavy
Strand
Exposed
1
2
4
0
0
21
VAL B 292
Heavy
Coil
Exposed
0
0
0
0
0
22
PRO B 294
Heavy
Coil
Exposed
0
7
11
0
0
23
LEU B 295
Heavy & Light
Coil
Exposed
1
8
8
0
0
24
HIS B 296
Heavy & Light
Coil
Exposed
1
4
18
0
0
25
ASN B 297
Heavy
Strand
Intermediate
0
0
0
0
0
26
LYS B 311
Heavy
Strand
Exposed
0
2
6
0
0
27
SER B 313
Light
Coil
Exposed
0
0
0
0
0
28
LYS B 314
Light
Coil
Exposed
0
1
1
0
0
29
PRO B 315
Light
Coil
Exposed
0
6
13
0
0
Interactions of contact residues of antigen Structure of contact residues of antigen Detailed contact residues of antigen


Number of interfacial waters = 0