Analysis of interatomic Contacts of Structural Units in PDB entry:
1Q4S


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 1Q4S entry

There are 2 chains in PDB entry 1Q4S (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 10ASP 151
B
 GLY 12ASP 151
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 7 helices in PDB entry 1Q4S. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
25 28Right-handed 310
Helix 2
2
A
29 35Right-handed alpha
Helix 3
3
A
53 57Right-handed 310
Helix 4
4
A
64 85Right-handed alpha
Helix 5
5
B
29 35Right-handed alpha
Helix 6
6
B
53 57Right-handed 310
Helix 7
7
B
64 85Right-handed alpha
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There is 1 sheet ( A) in PDB entry 1Q4S.

There are 12 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
37 41first strand
Strand 2
A
45 51anti-parallel
Strand 3
A
108 118anti-parallel
Strand 4
A
122 130anti-parallel
Strand 5
A
136 148anti-parallel
Strand 6
A
89 100anti-parallel
Strand 7
B
89 100anti-parallel
Strand 8
B
136 148anti-parallel
Strand 9
B
122 130anti-parallel
Strand 10
B
108 118anti-parallel
Strand 11
B
45 51anti-parallel
Strand 12
B
37 41anti-parallel
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