Analysis of interatomic Contacts of Structural Units in PDB entry:
1SQ1


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 1SQ1 entry

There is 1 chain in PDB entry 1SQ1 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MSE 1GLY 360
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 1SQ1. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
15 19Right-handed 310
Helix 2
2
A
35 46Right-handed alpha
Helix 3
3
A
127 144Right-handed alpha
Helix 4
4
A
164 168Right-handed 310
Helix 5
5
A
169 176Right-handed alpha
Helix 6
6
A
185 199Right-handed alpha
Helix 7
7
A
225 236Right-handed alpha
Helix 8
8
A
247 254Right-handed 310
Helix 9
9
A
255 260Right-handed alpha
Helix 10
10
A
324 347Right-handed alpha
Helix 11
11
A
348 350Right-handed 310
Helix 12
12
A
351 359Right-handed alpha
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There are 4 sheets in PDB entry 1SQ1. Click on sheet of interest to get list of strands forming it: A, B, C, D,

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
3 4first strand
Strand 2
A
9 13anti-parallel
Strand 3
A
21 26anti-parallel
Strand 4
A
78 82anti-parallel
Strand 5
A
62 64anti-parallel
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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
A
68 69first strand
Strand 2
A
72 73anti-parallel
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There are 5 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
159 160first strand
Strand 2
A
148 156anti-parallel
Strand 3
A
205 212anti-parallel
Strand 4
A
286 292anti-parallel
Strand 5
A
240 245anti-parallel
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There are 2 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
276 277first strand
Strand 2
A
280 281anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il