Analysis of interatomic Contacts of Structural Units in PDB entry:
2I4S


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 2I4S entry

There are 2 chains in PDB entry 2I4S (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY -3PHE 305
B
 GLY -3PHE 305
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 2I4S. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
-3 217Right-handed alpha
Helix 2
2
A
220 224Right-handed alpha
Helix 3
3
A
247 254Right-handed alpha
Helix 4
4
A
273 283Right-handed alpha
Helix 5
5
B
-3 216Right-handed alpha
Helix 6
6
B
217 223Right-handed 310
Helix 7
7
B
247 253Right-handed alpha
Helix 8
8
B
274 283Right-handed alpha
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There are 4 sheets in PDB entry 2I4S. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 4 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
225 232first strand
Strand 2
A
235 243anti-parallel
Strand 3
A
260 264anti-parallel
Strand 4
A
267 268anti-parallel
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There are 5 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
225 232first strand
Strand 2
A
235 243anti-parallel
Strand 3
A
260 264anti-parallel
Strand 4
A
287 294anti-parallel
Strand 5
A
297 304anti-parallel
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There are 4 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
225 232first strand
Strand 2
B
235 243anti-parallel
Strand 3
B
260 264anti-parallel
Strand 4
B
267 268anti-parallel
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There are 5 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
225 232first strand
Strand 2
B
235 243anti-parallel
Strand 3
B
260 264anti-parallel
Strand 4
B
287 294anti-parallel
Strand 5
B
297 304anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il