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


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 1ISF entry

There are 2 chains in PDB entry 1ISF (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 31 helices in PDB entry 1ISF. 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
27 31Right-handed 310
Helix 3
3
A
34 43Right-handed alpha
Helix 4
4
A
44 47Right-handed 310
Helix 5
5
A
54 57Right-handed 310
Helix 6
6
A
58 66Right-handed alpha
Helix 7
7
A
80 89Right-handed alpha
Helix 8
8
A
96 99Right-handed 310
Helix 9
9
A
100 105Right-handed alpha
Helix 10
10
A
134 150Right-handed alpha
Helix 11
11
A
172 177Right-handed alpha
Helix 12
12
A
178 182Right-handed 310
Helix 13
13
A
183 185Right-handed 310
Helix 14
14
A
209 221Right-handed alpha
Helix 15
15
A
231 240Right-handed alpha
Helix 16
16
B
10 24Right-handed alpha
Helix 17
17
B
25 26Right-handed 310
Helix 18
18
B
27 31Right-handed 310
Helix 19
19
B
34 47Right-handed alpha
Helix 20
20
B
54 57Right-handed 310
Helix 21
21
B
58 66Right-handed alpha
Helix 22
22
B
80 89Right-handed alpha
Helix 23
23
B
96 99Right-handed 310
Helix 24
24
B
100 105Right-handed alpha
Helix 25
25
B
134 150Right-handed alpha
Helix 26
26
B
172 178Right-handed alpha
Helix 27
27
B
179 182Right-handed 310
Helix 28
28
B
183 185Right-handed 310
Helix 29
29
B
209 221Right-handed alpha
Helix 30
30
B
231 240Right-handed alpha
Helix 31
31
B
245 249Right-handed 310
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There are 3 sheets in PDB entry 1ISF. 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 78first 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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