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


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 1IRS entry

There are 3 chains in PDB entry 1IRS (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
MET 156ARG 267
B
LEU 489ALA 496
B
ARG 498SER 499
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 3 helices in PDB entry 1IRS. Click on helix of interest for CSU analysis.
Helix
number
Helix
ID
Chain
ID
Initial
residue
Terminal
residue
Helix class
Helix 1
1
A
173 176Right-handed alpha
Helix 2
2
A
245 262Right-handed alpha
Helix 3
3
B
495 497Right-handed 310
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There are 2 sheets in PDB entry 1IRS. Click on sheet of interest to get list of strands forming it: A, B,

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
162 167first strand
Strand 2
A
182 188anti-parallel
Strand 3
A
191 196anti-parallel
Strand 4
A
204 207anti-parallel
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There are 3 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
234 236first strand
Strand 2
A
220 225anti-parallel
Strand 3
A
211 217anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il