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


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 4IWH entry

There are 2 chains in PDB entry 4IWH (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 HIS -2LEU 355
B
 MET 1LEU 355
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 37 helices in PDB entry 4IWH. 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 26Right-handed alpha
Helix 2
2
A
38 46Right-handed alpha
Helix 3
3
A
50 60Right-handed alpha
Helix 4
4
A
70 74Right-handed 310
Helix 5
5
A
77 82Right-handed 310
Helix 6
6
A
83 93Right-handed alpha
Helix 7
7
A
105 112Right-handed 310
Helix 8
8
A
115 120Right-handed alpha
Helix 9
9
A
132 136Right-handed 310
Helix 10
10
A
164 180Right-handed alpha
Helix 11
11
A
194 209Right-handed alpha
Helix 12
12
A
221 231Right-handed alpha
Helix 13
13
A
232 235Right-handed 310
Helix 14
14
A
241 257Right-handed alpha
Helix 15
15
A
258 261Right-handed 310
Helix 16
16
A
293 307Right-handed alpha
Helix 17
17
A
310 327Right-handed alpha
Helix 18
18
A
331 335Right-handed 310
Helix 19
19
A
343 355Right-handed alpha
Helix 20
20
B
10 25Right-handed alpha
Helix 21
21
B
38 46Right-handed alpha
Helix 22
22
B
50 60Right-handed alpha
Helix 23
23
B
70 74Right-handed 310
Helix 24
24
B
77 82Right-handed 310
Helix 25
25
B
83 93Right-handed alpha
Helix 26
26
B
105 112Right-handed 310
Helix 27
27
B
115 120Right-handed alpha
Helix 28
28
B
164 180Right-handed alpha
Helix 29
29
B
194 209Right-handed alpha
Helix 30
30
B
221 231Right-handed alpha
Helix 31
31
B
232 235Right-handed 310
Helix 32
32
B
241 257Right-handed alpha
Helix 33
33
B
258 261Right-handed 310
Helix 34
34
B
293 307Right-handed alpha
Helix 35
35
B
310 328Right-handed alpha
Helix 36
36
B
331 335Right-handed 310
Helix 37
37
B
343 354Right-handed alpha
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There are 5 sheets in PDB entry 4IWH. Click on sheet of interest to get list of strands forming it: A, B, C, D, E,

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
31 34first strand
Strand 2
A
2 8parallel
Strand 3
A
62 67parallel
Strand 4
A
273 277parallel
Strand 5
A
263 267anti-parallel
Strand 6
A
97 103anti-parallel
Strand 7
A
123 129anti-parallel
Strand 8
A
237 240parallel
Strand 9
A
184 189parallel
Strand 10
A
215 220parallel
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There are 4 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
141 144first strand
Strand 2
A
154 163anti-parallel
Strand 3
B
154 163anti-parallel
Strand 4
B
141 144anti-parallel
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There are 2 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
329 330first strand
Strand 2
A
340 341parallel
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There are 10 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
31 34first strand
Strand 2
B
2 8parallel
Strand 3
B
62 67parallel
Strand 4
B
273 277parallel
Strand 5
B
263 267anti-parallel
Strand 6
B
97 103anti-parallel
Strand 7
B
123 129anti-parallel
Strand 8
B
237 240parallel
Strand 9
B
184 189parallel
Strand 10
B
215 220parallel
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There are 2 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
329 330first strand
Strand 2
B
340 341parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il