Analysis of interatomic Contacts of Structural Units in PDB entry:
4IA4


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 4IA4 entry

There are 4 chains in PDB entry 4IA4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PRO 25ALA 267
B
 PHE 26ALA 266
C
 PRO 21ARG 265
D
 PHE 27LEU 264
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 45 helices in PDB entry 4IA4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
34 64Right-handed alpha
Helix 2
2
A
72 93Right-handed alpha
Helix 3
3
A
101 111Right-handed alpha
Helix 4
4
A
115 141Right-handed alpha
Helix 5
5
A
141 148Right-handed alpha
Helix 6
6
A
149 152Right-handed 310
Helix 7
7
A
160 183Right-handed alpha
Helix 8
8
A
198 218Right-handed alpha
Helix 9
9
A
222 234Right-handed alpha
Helix 10
10
A
235 242Right-handed alpha
Helix 11
11
A
243 262Right-handed alpha
Helix 12
12
B
38 64Right-handed alpha
Helix 13
13
B
72 97Right-handed alpha
Helix 14
14
B
101 111Right-handed alpha
Helix 15
15
B
115 141Right-handed alpha
Helix 16
16
B
141 148Right-handed alpha
Helix 17
17
B
149 152Right-handed 310
Helix 18
18
B
160 182Right-handed alpha
Helix 19
19
B
198 214Right-handed alpha
Helix 20
20
B
223 234Right-handed alpha
Helix 21
21
B
235 242Right-handed alpha
Helix 22
22
B
243 262Right-handed alpha
Helix 23
23
C
28 32Right-handed 310
Helix 24
24
C
34 64Right-handed alpha
Helix 25
25
C
72 93Right-handed alpha
Helix 26
26
C
101 111Right-handed alpha
Helix 27
27
C
115 139Right-handed alpha
Helix 28
28
C
141 148Right-handed alpha
Helix 29
29
C
149 152Right-handed 310
Helix 30
30
C
160 183Right-handed alpha
Helix 31
31
C
198 214Right-handed alpha
Helix 32
32
C
222 234Right-handed alpha
Helix 33
33
C
235 242Right-handed alpha
Helix 34
34
C
243 262Right-handed alpha
Helix 35
35
D
34 64Right-handed alpha
Helix 36
36
D
72 94Right-handed alpha
Helix 37
37
D
101 111Right-handed alpha
Helix 38
38
D
115 141Right-handed alpha
Helix 39
39
D
141 148Right-handed alpha
Helix 40
40
D
149 152Right-handed 310
Helix 41
41
D
160 182Right-handed alpha
Helix 42
42
D
198 218Right-handed alpha
Helix 43
43
D
222 234Right-handed alpha
Helix 44
44
D
235 242Right-handed alpha
Helix 45
45
D
243 263Right-handed alpha
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There are 2 sheets in PDB entry 4IA4. Click on sheet of interest to get list of strands forming it: A, B,

There are 2 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
183 188first strand
Strand 2
B
195 197anti-parallel
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There are 2 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
183 188first strand
Strand 2
D
195 197anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il