Analysis of interatomic Contacts of Structural Units in PDB entry:
1S2O


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 1S2O entry

There is 1 chain in PDB entry 1S2O (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1SER 244
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 13 helices in PDB entry 1S2O. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
17 30Right-handed alpha
Helix 2
2
A
31 33Right-handed 310
Helix 3
3
A
44 56Right-handed alpha
Helix 4
4
A
78 87Right-handed alpha
Helix 5
5
A
90 100Right-handed alpha
Helix 6
6
A
108 112Right-handed 310
Helix 7
7
A
127 139Right-handed alpha
Helix 8
8
A
162 174Right-handed alpha
Helix 9
9
A
177 179Right-handed 310
Helix 10
10
A
187 189Right-handed 310
Helix 11
11
A
190 195Right-handed alpha
Helix 12
12
A
207 218Right-handed alpha
Helix 13
13
A
228 240Right-handed alpha
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There are 2 sheets in PDB entry 1S2O. Click on sheet of interest to get list of strands forming it: A, B,

There are 8 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
76 77first strand
Strand 2
A
70 73anti-parallel
Strand 3
A
62 65anti-parallel
Strand 4
A
35 40parallel
Strand 5
A
4 8parallel
Strand 6
A
181 185parallel
Strand 7
A
199 202parallel
Strand 8
A
222 224parallel
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There are 4 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
104 106first strand
Strand 2
A
117 121anti-parallel
Strand 3
A
153 158anti-parallel
Strand 4
A
144 149anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il