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


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 1CHI entry

There are 2 chains in PDB entry 1CHI (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR -5PRO 71
A
 LYS 73GLU 103
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 1CHI. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
NT
A
2 14Right-handed alpha
Helix 2
50
A
49 55Right-handed alpha
Helix 3
60
A
60 70Right-handed alpha
Helix 4
70
A
70 75Right-handed alpha
Helix 5
CT
A
87 102Right-handed alpha
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There is 1 sheet ( S1) in PDB entry 1CHI.

There are 2 strands in S1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
37 40first strand
Strand 2
A
57 59anti-parallel
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