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


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 3IEX entry

There are 3 chains in PDB entry 3IEX (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 4ASP 287
B
 SER 4ASP 287
C
 SER 4ASP 287
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 30 helices in PDB entry 3IEX. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
8 23Right-handed alpha
Helix 2
2
A
53 55Right-handed 310
Helix 3
3
A
88 92Right-handed 310
Helix 4
4
A
94 109Right-handed alpha
Helix 5
5
A
140 144Right-handed alpha
Helix 6
6
A
169 183Right-handed alpha
Helix 7
7
A
185 187Right-handed 310
Helix 8
8
A
204 214Right-handed alpha
Helix 9
9
A
223 233Right-handed alpha
Helix 10
10
A
258 284Right-handed alpha
Helix 11
11
B
8 23Right-handed alpha
Helix 12
12
B
53 55Right-handed 310
Helix 13
13
B
88 92Right-handed 310
Helix 14
14
B
94 109Right-handed alpha
Helix 15
15
B
140 144Right-handed alpha
Helix 16
16
B
169 183Right-handed alpha
Helix 17
17
B
204 214Right-handed alpha
Helix 18
18
B
223 233Right-handed alpha
Helix 19
19
B
266 284Right-handed alpha
Helix 20
20
C
8 23Right-handed alpha
Helix 21
21
C
37 44Right-handed alpha
Helix 22
22
C
53 55Right-handed 310
Helix 23
23
C
88 92Right-handed 310
Helix 24
24
C
94 109Right-handed alpha
Helix 25
25
C
140 144Right-handed alpha
Helix 26
26
C
169 183Right-handed alpha
Helix 27
27
C
185 187Right-handed 310
Helix 28
28
C
204 214Right-handed alpha
Helix 29
29
C
223 233Right-handed alpha
Helix 30
30
C
258 284Right-handed alpha
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There are 4 sheets in PDB entry 3IEX. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 10 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
45 51first strand
Strand 2
A
69 75anti-parallel
Strand 3
A
78 84anti-parallel
Strand 4
A
29 32parallel
Strand 5
A
112 121parallel
Strand 6
A
236 246parallel
Strand 7
A
131 139anti-parallel
Strand 8
A
189 196parallel
Strand 9
A
218 220parallel
Strand 10
A
112 121anti-parallel
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There are 10 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
45 51first strand
Strand 2
B
69 75anti-parallel
Strand 3
B
78 84anti-parallel
Strand 4
B
29 32parallel
Strand 5
B
112 121parallel
Strand 6
B
236 246parallel
Strand 7
B
131 139anti-parallel
Strand 8
B
189 196parallel
Strand 9
B
218 220parallel
Strand 10
B
112 121anti-parallel
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There are 10 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
45 51first strand
Strand 2
C
69 75anti-parallel
Strand 3
C
78 84anti-parallel
Strand 4
C
29 32parallel
Strand 5
C
112 121parallel
Strand 6
C
236 246parallel
Strand 7
C
131 139anti-parallel
Strand 8
C
189 196parallel
Strand 9
C
218 220parallel
Strand 10
C
112 121anti-parallel
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There are 2 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
62 63first strand
Strand 2
C
66 67anti-parallel
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