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


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 3IWG entry

There are 2 chains in PDB entry 3IWG (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PHE 2LYS 271
B
 LYS 3LYS 271
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 25 helices in PDB entry 3IWG. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
9 12Right-handed 310
Helix 2
2
A
13 24Right-handed alpha
Helix 3
3
A
29 35Right-handed alpha
Helix 4
4
A
36 40Right-handed 310
Helix 5
5
A
72 85Right-handed alpha
Helix 6
6
A
103 113Right-handed alpha
Helix 7
7
A
144 146Right-handed 310
Helix 8
8
A
147 160Right-handed alpha
Helix 9
9
A
162 176Right-handed alpha
Helix 10
10
A
213 216Right-handed 310
Helix 11
11
A
219 235Right-handed alpha
Helix 12
12
A
247 257Right-handed alpha
Helix 13
13
B
9 12Right-handed 310
Helix 14
14
B
13 23Right-handed alpha
Helix 15
15
B
29 35Right-handed alpha
Helix 16
16
B
35 40Right-handed alpha
Helix 17
17
B
72 85Right-handed alpha
Helix 18
18
B
103 113Right-handed alpha
Helix 19
19
B
128 131Right-handed 310
Helix 20
20
B
144 146Right-handed 310
Helix 21
21
B
147 160Right-handed alpha
Helix 22
22
B
162 177Right-handed alpha
Helix 23
23
B
213 216Right-handed 310
Helix 24
24
B
219 235Right-handed alpha
Helix 25
25
B
247 257Right-handed alpha
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There are 2 sheets in PDB entry 3IWG. Click on sheet of interest to get list of strands forming it: A, B,

There are 12 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
3 6first strand
Strand 2
A
41 47anti-parallel
Strand 3
A
50 57anti-parallel
Strand 4
A
62 68anti-parallel
Strand 5
A
96 100parallel
Strand 6
A
259 270anti-parallel
Strand 7
A
114 126anti-parallel
Strand 8
A
238 244anti-parallel
Strand 9
A
204 211parallel
Strand 10
A
187 196anti-parallel
Strand 11
A
179 184anti-parallel
Strand 12
A
141 142anti-parallel
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There are 12 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
4 6first strand
Strand 2
B
41 47anti-parallel
Strand 3
B
50 57anti-parallel
Strand 4
B
62 68anti-parallel
Strand 5
B
96 100parallel
Strand 6
B
259 270anti-parallel
Strand 7
B
114 126anti-parallel
Strand 8
B
238 244anti-parallel
Strand 9
B
204 211parallel
Strand 10
B
187 196anti-parallel
Strand 11
B
179 184anti-parallel
Strand 12
B
141 142anti-parallel
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