Analysis of interatomic Contacts of Structural Units in PDB entry:
4I90


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 4I90 entry

There is 1 chain in PDB entry 4I90 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ASP 2LEU 303
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 12 helices in PDB entry 4I90. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
3 15Right-handed 310
Helix 2
2
A
20 24Right-handed 310
Helix 3
3
A
31 37Right-handed 310
Helix 4
4
A
39 47Right-handed alpha
Helix 5
5
A
52 59Right-handed alpha
Helix 6
6
A
89 103Right-handed alpha
Helix 7
7
A
125 134Right-handed alpha
Helix 8
8
A
137 141Right-handed 310
Helix 9
9
A
153 158Right-handed alpha
Helix 10
10
A
211 228Right-handed alpha
Helix 11
11
A
251 270Right-handed alpha
Helix 12
12
A
292 300Right-handed alpha
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There are 2 sheets in PDB entry 4I90. Click on sheet of interest to get list of strands forming it: A, B,

There are 5 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
83 88first strand
Strand 2
A
75 80anti-parallel
Strand 3
A
63 72anti-parallel
Strand 4
A
108 114parallel
Strand 5
A
161 165parallel
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There are 8 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
83 88first strand
Strand 2
A
75 80anti-parallel
Strand 3
A
63 72anti-parallel
Strand 4
A
26 29parallel
Strand 5
A
277 280parallel
Strand 6
A
234 239parallel
Strand 7
A
200 206parallel
Strand 8
A
189 195anti-parallel
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