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


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 3IWM entry

There are 8 chains in PDB entry 3IWM (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 1SER 301
B
 SER 1SER 301
C
 SER 1CYS 300
D
 SER 1CYS 300
H
 ALA 2LEU 4
F
 ALA 2LEU 4
G
 ALA 2LEU 4
E
 ALA 2LEU 4
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 32 helices in PDB entry 3IWM. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
10 15Right-handed alpha
Helix 2
2
A
41 43Right-handed 310
Helix 3
3
A
53 59Right-handed alpha
Helix 4
4
A
201 214Right-handed alpha
Helix 5
5
A
226 237Right-handed alpha
Helix 6
6
A
243 257Right-handed alpha
Helix 7
7
A
260 269Right-handed alpha
Helix 8
8
A
270 275Right-handed alpha
Helix 9
9
A
292 299Right-handed alpha
Helix 10
10
B
10 15Right-handed alpha
Helix 11
11
B
53 58Right-handed alpha
Helix 12
12
B
200 213Right-handed alpha
Helix 13
13
B
226 237Right-handed alpha
Helix 14
14
B
243 257Right-handed alpha
Helix 15
15
B
260 273Right-handed alpha
Helix 16
16
B
280 284Right-handed 310
Helix 17
17
B
292 300Right-handed alpha
Helix 18
18
C
10 15Right-handed alpha
Helix 19
19
C
62 66Right-handed 310
Helix 20
20
C
200 214Right-handed alpha
Helix 21
21
C
217 221Right-handed 310
Helix 22
22
C
230 232Right-handed 310
Helix 23
23
C
233 238Right-handed alpha
Helix 24
24
C
243 258Right-handed alpha
Helix 25
25
C
260 273Right-handed alpha
Helix 26
26
C
294 300Right-handed alpha
Helix 27
27
D
10 15Right-handed alpha
Helix 28
28
D
200 214Right-handed alpha
Helix 29
29
D
226 235Right-handed alpha
Helix 30
30
D
243 258Right-handed alpha
Helix 31
31
D
260 275Right-handed alpha
Helix 32
32
D
292 299Right-handed alpha
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There are 13 sheets in PDB entry 3IWM. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L, M,

There are 5 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
17 21first strand
Strand 2
A
26 32anti-parallel
Strand 3
A
35 39anti-parallel
Strand 4
A
86 87anti-parallel
Strand 5
A
82 83anti-parallel
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There are 5 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
101 102first strand
Strand 2
A
156 163parallel
Strand 3
A
148 153anti-parallel
Strand 4
A
111 118anti-parallel
Strand 5
A
121 129anti-parallel
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There are 3 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
101 102first strand
Strand 2
A
156 163parallel
Strand 3
A
174 175anti-parallel
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There are 7 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
17 21first strand
Strand 2
B
26 32anti-parallel
Strand 3
B
35 37anti-parallel
Strand 4
B
87 91anti-parallel
Strand 5
B
73 82anti-parallel
Strand 6
B
67 70anti-parallel
Strand 7
B
17 21anti-parallel
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There are 3 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
100 103first strand
Strand 2
B
156 159parallel
Strand 3
B
152 153anti-parallel
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There are 5 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
121 128first strand
Strand 2
B
112 118anti-parallel
Strand 3
B
148 150anti-parallel
Strand 4
B
161 165anti-parallel
Strand 5
B
173 175anti-parallel
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There are 7 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
73 75first strand
Strand 2
C
67 70anti-parallel
Strand 3
C
17 21anti-parallel
Strand 4
C
26 32anti-parallel
Strand 5
C
35 37anti-parallel
Strand 6
C
86 90anti-parallel
Strand 7
C
80 83anti-parallel
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There are 5 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
101 103first strand
Strand 2
C
157 166parallel
Strand 3
C
148 151anti-parallel
Strand 4
C
111 118anti-parallel
Strand 5
C
121 129anti-parallel
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There are 3 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
101 103first strand
Strand 2
C
157 166parallel
Strand 3
C
172 175anti-parallel
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There are 2 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
17 18first strand
Strand 2
D
29 30anti-parallel
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There are 2 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
21 22first strand
Strand 2
D
25 26anti-parallel
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There are 2 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
69 70first strand
Strand 2
D
73 74anti-parallel
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There are 5 strands in M sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
122 126first strand
Strand 2
D
113 117anti-parallel
Strand 3
D
148 150anti-parallel
Strand 4
D
161 165anti-parallel
Strand 5
D
173 175anti-parallel
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