Analysis of interatomic Contacts of Structural Units in PDB entry:
4COS


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 4COS entry

There is 1 chain in PDB entry 4COS (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ARG 86LEU 399
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 15 helices in PDB entry 4COS. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
111 116Right-handed 310
Helix 2
2
A
127 138Right-handed alpha
Helix 3
3
A
139 142Right-handed 310
Helix 4
4
A
143 148Right-handed alpha
Helix 5
5
A
150 166Right-handed alpha
Helix 6
6
A
170 174Right-handed 310
Helix 7
7
A
184 189Right-handed alpha
Helix 8
8
A
194 204Right-handed alpha
Helix 9
9
A
209 229Right-handed alpha
Helix 10
10
A
232 255Right-handed alpha
Helix 11
11
A
255 265Right-handed alpha
Helix 12
12
A
268 272Right-handed 310
Helix 13
13
A
335 358Right-handed alpha
Helix 14
14
A
374 378Right-handed 310
Helix 15
15
A
383 387Right-handed 310
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There are 2 sheets in PDB entry 4COS. Click on sheet of interest to get list of strands forming it: AA, AB,

There are 2 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
101 102first strand
Strand 2
A
109 110anti-parallel
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There are 5 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
313 317first strand
Strand 2
A
302 307anti-parallel
Strand 3
A
291 299anti-parallel
Strand 4
A
280 283anti-parallel
Strand 5
A
321 323anti-parallel
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