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


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 1USB entry

There are 2 chains in PDB entry 1USB (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 2ARG 221
B
 ALA 2PHE 220
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 24 helices in PDB entry 1USB. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
13 15Right-handed 310
Helix 2
2
A
16 26Right-handed alpha
Helix 3
3
A
37 47Right-handed alpha
Helix 4
4
A
67 79Right-handed alpha
Helix 5
5
A
85 108Right-handed alpha
Helix 6
6
A
116 131Right-handed alpha
Helix 7
7
A
131 144Right-handed alpha
Helix 8
8
A
154 171Right-handed alpha
Helix 9
9
A
178 190Right-handed alpha
Helix 10
10
A
191 199Right-handed alpha
Helix 11
11
A
209 220Right-handed alpha
Helix 12
12
B
13 15Right-handed 310
Helix 13
13
B
16 26Right-handed alpha
Helix 14
14
B
37 47Right-handed alpha
Helix 15
15
B
67 79Right-handed alpha
Helix 16
16
B
85 108Right-handed alpha
Helix 17
17
B
109 112Right-handed 310
Helix 18
18
B
113 115Right-handed 310
Helix 19
19
B
116 131Right-handed alpha
Helix 20
20
B
131 144Right-handed alpha
Helix 21
21
B
154 171Right-handed alpha
Helix 22
22
B
178 190Right-handed alpha
Helix 23
23
B
191 199Right-handed alpha
Helix 24
24
B
211 217Right-handed alpha
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There are 2 sheets in PDB entry 1USB. Click on sheet of interest to get list of strands forming it: AA, BA,

There are 4 strands in AA 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
6 9parallel
Strand 3
A
57 60anti-parallel
Strand 4
A
63 66anti-parallel
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There are 4 strands in BA 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
6 9parallel
Strand 3
B
57 60anti-parallel
Strand 4
B
63 66anti-parallel
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