Analysis of interatomic Contacts of Structural Units in PDB entry:
1I4U


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 1I4U entry

There are 2 chains in PDB entry 1I4U (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ASP 1LEU 181
B
 LYS 2LEU 181
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 10 helices in PDB entry 1I4U. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
16 25Right-handed alpha
Helix 2
2
A
27 32Right-handed alpha
Helix 3
3
A
143 157Right-handed alpha
Helix 4
4
A
160 162Right-handed 310
Helix 5
5
A
174 179Right-handed alpha
Helix 6
6
B
16 25Right-handed alpha
Helix 7
7
B
27 32Right-handed alpha
Helix 8
8
B
143 157Right-handed alpha
Helix 9
9
B
160 162Right-handed 310
Helix 10
10
B
174 179Right-handed alpha
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There are 2 sheets in PDB entry 1I4U. Click on sheet of interest to get list of strands forming it: A, B,

There are 12 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
7 9first strand
Strand 2
A
128 137anti-parallel
Strand 3
A
33 41anti-parallel
Strand 4
A
48 58anti-parallel
Strand 5
A
63 71anti-parallel
Strand 6
A
76 85anti-parallel
Strand 7
A
93 97anti-parallel
Strand 8
A
102 110anti-parallel
Strand 9
A
115 123anti-parallel
Strand 10
A
128 137anti-parallel
Strand 11
A
33 41first strand
Strand 12
A
164 166anti-parallel
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There are 12 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
8 9first strand
Strand 2
B
128 137anti-parallel
Strand 3
B
33 41anti-parallel
Strand 4
B
48 58anti-parallel
Strand 5
B
63 71anti-parallel
Strand 6
B
76 85anti-parallel
Strand 7
B
93 97anti-parallel
Strand 8
B
102 110anti-parallel
Strand 9
B
115 123anti-parallel
Strand 10
B
128 137anti-parallel
Strand 11
B
33 41first strand
Strand 12
B
164 166anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il