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


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 4IRA entry

There is 1 chain in PDB entry 4IRA (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 12LEU 173
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 5 helices in PDB entry 4IRA. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
15 24Right-handed alpha
Helix 2
2
A
67 69Right-handed 310
Helix 3
3
A
70 77Right-handed alpha
Helix 4
4
A
88 96Right-handed alpha
Helix 5
5
A
102 108Right-handed alpha
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There are 3 sheets in PDB entry 4IRA. Click on sheet of interest to get list of strands forming it: A, B, C,

There are 3 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
28 29first strand
Strand 2
A
159 164anti-parallel
Strand 3
A
167 172anti-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
42 46first strand
Strand 2
A
31 35anti-parallel
Strand 3
A
78 83anti-parallel
Strand 4
A
127 139anti-parallel
Strand 5
A
142 154anti-parallel
Strand 6
A
58 64anti-parallel
Strand 7
A
49 53anti-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
112 113first strand
Strand 2
A
121 122anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il