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


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 1QOS entry

There are 2 chains in PDB entry 1QOS (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 3GLU 239
B
 SER 3GLU 239
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 8 helices in PDB entry 1QOS. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
104 108Right-handed 310
Helix 2
2
A
176 178Right-handed 310
Helix 3
3
A
201 205Right-handed 310
Helix 4
4
A
220 224Right-handed 310
Helix 5
5
B
104 108Right-handed 310
Helix 6
6
B
176 178Right-handed 310
Helix 7
7
B
201 205Right-handed 310
Helix 8
8
B
220 224Right-handed 310
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There are 4 sheets in PDB entry 1QOS. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 6 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
6 10first strand
Strand 2
A
228 237anti-parallel
Strand 3
A
68 76anti-parallel
Strand 4
A
167 175anti-parallel
Strand 5
A
180 187anti-parallel
Strand 6
A
193 199anti-parallel
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There are 7 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
20 24first strand
Strand 2
A
46 52anti-parallel
Strand 3
A
210 218anti-parallel
Strand 4
A
87 94anti-parallel
Strand 5
A
123 128anti-parallel
Strand 6
A
144 149anti-parallel
Strand 7
A
156 159anti-parallel
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There are 6 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
6 10first strand
Strand 2
B
228 237anti-parallel
Strand 3
B
68 76anti-parallel
Strand 4
B
167 175anti-parallel
Strand 5
B
180 187anti-parallel
Strand 6
B
193 199anti-parallel
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There are 7 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
20 24first strand
Strand 2
B
46 52anti-parallel
Strand 3
B
210 218anti-parallel
Strand 4
B
87 94anti-parallel
Strand 5
B
123 128anti-parallel
Strand 6
B
144 149anti-parallel
Strand 7
B
156 159anti-parallel
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