Analysis of interatomic Contacts of Structural Units in PDB entry:
1ISG


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 1ISG entry

There are 2 chains in PDB entry 1ISG (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 TRP 2LYS 251
B
 TRP 2LYS 251
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 1ISG. 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
34 43Right-handed alpha
Helix 3
3
A
44 48Right-handed 310
Helix 4
4
A
54 57Right-handed 310
Helix 5
5
A
58 66Right-handed alpha
Helix 6
6
A
80 89Right-handed alpha
Helix 7
7
A
96 99Right-handed 310
Helix 8
8
A
100 105Right-handed alpha
Helix 9
9
A
134 150Right-handed alpha
Helix 10
10
A
172 178Right-handed alpha
Helix 11
11
A
183 185Right-handed 310
Helix 12
12
A
209 221Right-handed alpha
Helix 13
13
A
231 240Right-handed alpha
Helix 14
14
A
245 249Right-handed 310
Helix 15
15
B
10 25Right-handed alpha
Helix 16
16
B
26 26Right-handed 310
Helix 17
17
B
27 31Right-handed 310
Helix 18
18
B
34 47Right-handed alpha
Helix 19
19
B
54 57Right-handed 310
Helix 20
20
B
58 66Right-handed alpha
Helix 21
21
B
80 89Right-handed alpha
Helix 22
22
B
96 99Right-handed 310
Helix 23
23
B
100 105Right-handed alpha
Helix 24
24
B
134 150Right-handed alpha
Helix 25
25
B
172 178Right-handed alpha
Helix 26
26
B
179 182Right-handed 310
Helix 27
27
B
183 185Right-handed 310
Helix 28
28
B
209 222Right-handed alpha
Helix 29
29
B
231 240Right-handed alpha
Helix 30
30
B
245 249Right-handed 310
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There are 3 sheets in PDB entry 1ISG. Click on sheet of interest to get list of strands forming it: A, B, C,

There are 4 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
75 77first strand
Strand 2
A
153 160parallel
Strand 3
A
187 195parallel
Strand 4
A
225 229parallel
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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
B
4 5first strand
Strand 2
B
124 125anti-parallel
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There are 4 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
75 77first strand
Strand 2
B
153 160parallel
Strand 3
B
187 195parallel
Strand 4
B
225 229parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il