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


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 1IST entry

There are 2 chains in PDB entry 1IST (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 2LEU 162
B
 SER 2LEU 162
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 1IST. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
23 27Right-handed 310
Helix 2
2
A
28 39Right-handed alpha
Helix 3
3
A
117 121Right-handed 310
Helix 4
4
A
133 140Right-handed alpha
Helix 5
5
A
141 144Right-handed 310
Helix 6
6
B
23 27Right-handed 310
Helix 7
7
B
28 39Right-handed alpha
Helix 8
8
B
117 121Right-handed 310
Helix 9
9
B
133 140Right-handed alpha
Helix 10
10
B
141 144Right-handed 310
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There are 2 sheets in PDB entry 1IST. 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
A
2 9first strand
Strand 2
A
14 22anti-parallel
Strand 3
A
125 132anti-parallel
Strand 4
A
94 99anti-parallel
Strand 5
A
109 114anti-parallel
Strand 6
A
59 62anti-parallel
Strand 7
A
48 54anti-parallel
Strand 8
A
153 162anti-parallel
Strand 9
A
2 9anti-parallel
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There are 9 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
2 9first strand
Strand 2
B
14 22anti-parallel
Strand 3
B
125 132anti-parallel
Strand 4
B
94 99anti-parallel
Strand 5
B
109 114anti-parallel
Strand 6
B
59 62anti-parallel
Strand 7
B
48 54anti-parallel
Strand 8
B
153 162anti-parallel
Strand 9
B
2 9anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il