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


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 1IHS entry

There are 4 chains in PDB entry 1IHS (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
L
 GLY 1ASP 14
H
 ILE 16GLU 247
I
 PRO 2PRO 2
I
 GLN 67GLN 83
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 7 helices in PDB entry 1IHS. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
H1
L
14 14Right-handed alpha
Helix 2
H2
H
55 58Right-handed 310
Helix 3
H3
H
60 60Right-handed 310
Helix 4
H4
H
125 130Right-handed alpha
Helix 5
H5
H
164 170Right-handed alpha
Helix 6
H6
H
231 235Right-handed 310
Helix 7
H7
H
234 245Right-handed alpha
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There are 2 sheets in PDB entry 1IHS. Click on sheet of interest to get list of strands forming it: B1, B2,

There are 7 strands in B1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
29 36first strand
Strand 2
H
39 47anti-parallel
Strand 3
H
50 54parallel
Strand 4
H
103 109anti-parallel
Strand 5
H
81 91parallel
Strand 6
H
63 68anti-parallel
Strand 7
H
29 36first strand
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There are 7 strands in B2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
134 140first strand
Strand 2
H
156 163anti-parallel
Strand 3
H
179 184parallel
Strand 4
H
226 231anti-parallel
Strand 5
H
205 215parallel
Strand 6
H
199 203anti-parallel
Strand 7
H
134 140first strand
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