Analysis of interatomic Contacts of Structural Units in PDB entry:
4AP9


Contacts of Structural Units (CSU) are derived with the CSU software (Sobolev V., Sorokine A., Prilusky J., Abola E.E. and Edelman M. (1999) Automated analysis of interatomic contacts in proteins. Bioinformatics, 15, 327-332).
For CSU analysis of other PDB entry

This page provides analyses of contacts formed by:
For analysis of ligand-protein contacts, use: 3D structure can be seen in additional window with STING software for 4AP9 entry

There are 4 chains in PDB entry 4AP9 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY -6LYS 193
B
 GLY -6LYS 193
C
 GLY -6LYS 193
D
 GLY -6LYS 193
Residue contacts

1. List of contacts for up to 10 consecutive residues:
Chain ID from residue number to residue number


2. Detailed analyses of contacts for any single residue:
Residue number chain ID
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There are 48 helices in PDB entry 4AP9. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
-2 2Right-handed 310
Helix 2
2
A
17 27Right-handed alpha
Helix 3
3
A
28 40Right-handed alpha
Helix 4
4
A
44 56Right-handed alpha
Helix 5
5
A
60 67Right-handed alpha
Helix 6
6
A
68 71Right-handed 310
Helix 7
7
A
74 87Right-handed alpha
Helix 8
8
A
102 106Right-handed 310
Helix 9
9
A
133 139Right-handed alpha
Helix 10
10
A
140 142Right-handed 310
Helix 11
11
A
155 162Right-handed alpha
Helix 12
12
A
181 191Right-handed alpha
Helix 13
13
B
-2 2Right-handed 310
Helix 14
14
B
17 27Right-handed alpha
Helix 15
15
B
28 40Right-handed alpha
Helix 16
16
B
44 57Right-handed alpha
Helix 17
17
B
60 66Right-handed alpha
Helix 18
18
B
67 71Right-handed 310
Helix 19
19
B
74 87Right-handed alpha
Helix 20
20
B
102 106Right-handed 310
Helix 21
21
B
133 138Right-handed alpha
Helix 22
22
B
139 142Right-handed 310
Helix 23
23
B
155 160Right-handed alpha
Helix 24
24
B
181 191Right-handed alpha
Helix 25
25
C
-2 2Right-handed 310
Helix 26
26
C
17 27Right-handed alpha
Helix 27
27
C
28 40Right-handed alpha
Helix 28
28
C
44 56Right-handed alpha
Helix 29
29
C
60 67Right-handed alpha
Helix 30
30
C
68 71Right-handed 310
Helix 31
31
C
74 87Right-handed alpha
Helix 32
32
C
102 106Right-handed 310
Helix 33
33
C
133 139Right-handed alpha
Helix 34
34
C
140 142Right-handed 310
Helix 35
35
C
155 162Right-handed alpha
Helix 36
36
C
181 191Right-handed alpha
Helix 37
37
D
-2 2Right-handed 310
Helix 38
38
D
17 27Right-handed alpha
Helix 39
39
D
28 40Right-handed alpha
Helix 40
40
D
44 57Right-handed alpha
Helix 41
41
D
60 67Right-handed alpha
Helix 42
42
D
68 71Right-handed 310
Helix 43
43
D
74 87Right-handed alpha
Helix 44
44
D
102 106Right-handed 310
Helix 45
45
D
133 139Right-handed alpha
Helix 46
46
D
140 142Right-handed 310
Helix 47
47
D
155 162Right-handed alpha
Helix 48
48
D
181 192Right-handed alpha
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There are 4 sheets in PDB entry 4AP9. Click on sheet of interest to get list of strands forming it: AA, AB, CA, CB,

There are 8 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
-4 -3first strand
Strand 2
B
123 128parallel
Strand 3
B
111 120anti-parallel
Strand 4
B
90 98parallel
Strand 5
B
4 8parallel
Strand 6
B
146 150parallel
Strand 7
B
164 168parallel
Strand 8
B
177 179parallel
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There are 8 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
177 179first strand
Strand 2
A
164 168parallel
Strand 3
A
146 150parallel
Strand 4
A
4 8parallel
Strand 5
A
90 98parallel
Strand 6
A
111 120parallel
Strand 7
A
123 128anti-parallel
Strand 8
B
-5 -3parallel
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There are 8 strands in CA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
-4 -3first strand
Strand 2
D
123 128parallel
Strand 3
D
111 120anti-parallel
Strand 4
D
90 98parallel
Strand 5
D
4 8parallel
Strand 6
D
146 150parallel
Strand 7
D
164 168parallel
Strand 8
D
177 179parallel
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There are 8 strands in CB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
177 179first strand
Strand 2
C
164 168parallel
Strand 3
C
146 150parallel
Strand 4
C
4 8parallel
Strand 5
C
90 98parallel
Strand 6
C
111 120parallel
Strand 7
C
123 128anti-parallel
Strand 8
D
-5 -3parallel
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