Analysis of interatomic Contacts of Structural Units in PDB entry:
3AI9


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 3AI9 entry

There is 1 chain in PDB entry 3AI9 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
X
 GLY 1ILE 205
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 3AI9. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
X
18 22Right-handed 310
Helix 2
2
X
28 40Right-handed alpha
Helix 3
3
X
79 97Right-handed alpha
Helix 4
4
X
100 104Right-handed 310
Helix 5
5
X
118 129Right-handed alpha
Helix 6
6
X
144 146Right-handed 310
Helix 7
7
X
161 172Right-handed alpha
Helix 8
8
X
185 205Right-handed alpha
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There are 2 sheets in PDB entry 3AI9. Click on sheet of interest to get list of strands forming it: A, B,

There are 9 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
X
106 109first strand
Strand 2
X
112 115anti-parallel
Strand 3
X
64 69anti-parallel
Strand 4
X
50 56anti-parallel
Strand 5
X
2 8parallel
Strand 6
X
151 155parallel
Strand 7
X
132 136parallel
Strand 8
X
175 178parallel
Strand 9
X
141 142parallel
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There are 2 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
X
41 42first strand
Strand 2
X
45 46anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il