Analysis of interatomic Contacts of Structural Units in PDB entry:
2ISQ


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 2ISQ entry

There are 2 chains in PDB entry 2ISQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 3ALA 322
B
 THR 900ILE 907
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 18 helices in PDB entry 2ISQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
8 13Right-handed 310
Helix 2
2
A
38 40Right-handed 310
Helix 3
3
A
45 60Right-handed alpha
Helix 4
4
A
76 90Right-handed alpha
Helix 5
5
A
103 112Right-handed alpha
Helix 6
6
A
120 122Right-handed 310
Helix 7
7
A
123 139Right-handed alpha
Helix 8
8
A
151 160Right-handed alpha
Helix 9
9
A
160 169Right-handed alpha
Helix 10
10
A
183 197Right-handed alpha
Helix 11
11
A
209 215Right-handed 310
Helix 12
12
A
236 240Right-handed 310
Helix 13
13
A
247 263Right-handed alpha
Helix 14
14
A
267 283Right-handed alpha
Helix 15
15
A
284 287Right-handed 310
Helix 16
16
A
298 303Right-handed 310
Helix 17
17
A
305 307Right-handed 310
Helix 18
18
A
308 318Right-handed alpha
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There are 2 sheets in PDB entry 2ISQ. Click on sheet of interest to get list of strands forming it: A, B,

There are 6 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
18 20first strand
Strand 2
A
31 36anti-parallel
Strand 3
A
290 295parallel
Strand 4
A
173 179parallel
Strand 5
A
201 207parallel
Strand 6
A
242 246parallel
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There are 4 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
115 119first strand
Strand 2
A
92 98parallel
Strand 3
A
69 73parallel
Strand 4
A
142 144parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il