Analysis of interatomic Contacts of Structural Units in PDB entry:
1S2N


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 1S2N entry

There are 2 chains in PDB entry 1S2N (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLN 1CYS 281
B
 SER 2ASP 274
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 1S2N. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
5 12Right-handed alpha
Helix 2
2
A
69 80Right-handed alpha
Helix 3
3
A
104 119Right-handed alpha
Helix 4
4
A
134 147Right-handed alpha
Helix 5
5
A
161 165Right-handed 310
Helix 6
6
A
218 237Right-handed alpha
Helix 7
7
A
241 253Right-handed alpha
Helix 8
8
A
277 281Right-handed 310
Helix 9
9
B
5 12Right-handed alpha
Helix 10
10
B
69 80Right-handed alpha
Helix 11
11
B
104 119Right-handed alpha
Helix 12
12
B
134 147Right-handed alpha
Helix 13
13
B
161 165Right-handed 310
Helix 14
14
B
218 237Right-handed alpha
Helix 15
15
B
241 253Right-handed alpha
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There are 6 sheets in PDB entry 1S2N. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

There are 7 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
51 56first strand
Strand 2
A
90 95parallel
Strand 3
A
32 37parallel
Strand 4
A
123 127parallel
Strand 5
A
150 154parallel
Strand 6
A
174 179parallel
Strand 7
A
197 200parallel
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There are 2 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
204 207first strand
Strand 2
A
213 216anti-parallel
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There are 2 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
254 255first strand
Strand 2
A
267 268anti-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
51 56first strand
Strand 2
B
90 95parallel
Strand 3
B
32 37parallel
Strand 4
B
123 127parallel
Strand 5
B
150 154parallel
Strand 6
B
174 179parallel
Strand 7
B
197 200parallel
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There are 2 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
204 207first strand
Strand 2
B
213 216anti-parallel
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There are 2 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
254 255first strand
Strand 2
B
267 268anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il