Analysis of interatomic Contacts of Structural Units in PDB entry:
3AIO


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 3AIO entry

There are 4 chains in PDB entry 3AIO (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 21LYS 303
B
 ALA 21LYS 303
C
 ALA 21LYS 303
D
 ALA 21LYS 303
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 3AIO. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
22 35Right-handed alpha
Helix 2
2
A
89 101Right-handed alpha
Helix 3
3
A
118 134Right-handed alpha
Helix 4
4
A
135 139Right-handed 310
Helix 5
5
A
150 166Right-handed alpha
Helix 6
6
A
186 193Right-handed alpha
Helix 7
7
A
199 211Right-handed alpha
Helix 8
8
A
213 219Right-handed 310
Helix 9
9
A
223 227Right-handed 310
Helix 10
10
A
245 259Right-handed alpha
Helix 11
11
A
274 279Right-handed 310
Helix 12
12
A
282 302Right-handed alpha
Helix 13
13
B
22 35Right-handed alpha
Helix 14
14
B
85 101Right-handed alpha
Helix 15
15
B
118 134Right-handed alpha
Helix 16
16
B
135 139Right-handed 310
Helix 17
17
B
150 166Right-handed alpha
Helix 18
18
B
186 193Right-handed alpha
Helix 19
19
B
199 211Right-handed alpha
Helix 20
20
B
213 219Right-handed 310
Helix 21
21
B
223 227Right-handed 310
Helix 22
22
B
245 259Right-handed alpha
Helix 23
23
B
274 279Right-handed 310
Helix 24
24
B
282 302Right-handed alpha
Helix 25
25
C
22 36Right-handed alpha
Helix 26
26
C
89 101Right-handed alpha
Helix 27
27
C
118 134Right-handed alpha
Helix 28
28
C
135 139Right-handed 310
Helix 29
29
C
150 166Right-handed alpha
Helix 30
30
C
186 193Right-handed alpha
Helix 31
31
C
199 211Right-handed alpha
Helix 32
32
C
213 219Right-handed 310
Helix 33
33
C
223 227Right-handed 310
Helix 34
34
C
245 259Right-handed alpha
Helix 35
35
C
274 279Right-handed 310
Helix 36
36
C
282 302Right-handed alpha
Helix 37
37
D
22 35Right-handed alpha
Helix 38
38
D
89 101Right-handed alpha
Helix 39
39
D
118 134Right-handed alpha
Helix 40
40
D
135 139Right-handed 310
Helix 41
41
D
150 166Right-handed alpha
Helix 42
42
D
186 193Right-handed alpha
Helix 43
43
D
199 211Right-handed alpha
Helix 44
44
D
213 219Right-handed 310
Helix 45
45
D
223 227Right-handed 310
Helix 46
46
D
245 259Right-handed alpha
Helix 47
47
D
274 279Right-handed 310
Helix 48
48
D
282 302Right-handed alpha
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There are 2 sheets in PDB entry 3AIO. Click on sheet of interest to get list of strands forming it: A, B,

There are 16 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
44 51first strand
Strand 2
A
56 63anti-parallel
Strand 3
A
103 107anti-parallel
Strand 4
A
71 76parallel
Strand 5
A
143 149parallel
Strand 6
A
172 176parallel
Strand 7
A
235 242parallel
Strand 8
A
263 272parallel
Strand 9
D
263 272anti-parallel
Strand 10
D
235 242parallel
Strand 11
D
172 176parallel
Strand 12
D
143 149parallel
Strand 13
D
71 76parallel
Strand 14
D
103 107parallel
Strand 15
D
56 63anti-parallel
Strand 16
D
44 51anti-parallel
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There are 16 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
44 51first strand
Strand 2
B
56 63anti-parallel
Strand 3
B
103 107anti-parallel
Strand 4
B
71 76parallel
Strand 5
B
143 149parallel
Strand 6
B
172 176parallel
Strand 7
B
235 242parallel
Strand 8
B
263 272parallel
Strand 9
C
263 272anti-parallel
Strand 10
C
235 242parallel
Strand 11
C
172 176parallel
Strand 12
C
144 149parallel
Strand 13
C
72 76parallel
Strand 14
C
103 107parallel
Strand 15
C
56 63anti-parallel
Strand 16
C
44 51anti-parallel
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