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


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 1SQI entry

There are 2 chains in PDB entry 1SQI (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY 8SER 366
B
 LYS 7SER 366
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 22 helices in PDB entry 1SQI. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
28 41Right-handed alpha
Helix 2
2
A
49 53Right-handed 310
Helix 3
3
A
79 90Right-handed alpha
Helix 4
4
A
102 114Right-handed alpha
Helix 5
5
A
169 173Right-handed 310
Helix 6
6
A
192 205Right-handed alpha
Helix 7
7
A
250 260Right-handed alpha
Helix 8
8
A
273 285Right-handed alpha
Helix 9
9
A
292 305Right-handed alpha
Helix 10
10
A
313 321Right-handed alpha
Helix 11
11
A
360 366Right-handed alpha
Helix 12
12
B
28 41Right-handed alpha
Helix 13
13
B
49 53Right-handed 310
Helix 14
14
B
79 90Right-handed alpha
Helix 15
15
B
102 114Right-handed alpha
Helix 16
16
B
169 173Right-handed 310
Helix 17
17
B
192 205Right-handed alpha
Helix 18
18
B
250 260Right-handed alpha
Helix 19
19
B
273 285Right-handed alpha
Helix 20
20
B
292 305Right-handed alpha
Helix 21
21
B
313 321Right-handed alpha
Helix 22
22
B
360 366Right-handed alpha
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There are 4 sheets in PDB entry 1SQI. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 8 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
43 48first strand
Strand 2
A
57 64anti-parallel
Strand 3
A
67 74anti-parallel
Strand 4
A
15 25parallel
Strand 5
A
92 101anti-parallel
Strand 6
A
143 150parallel
Strand 7
A
129 137anti-parallel
Strand 8
A
117 126anti-parallel
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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
207 209first strand
Strand 2
A
225 230anti-parallel
Strand 3
A
237 242anti-parallel
Strand 4
A
178 187parallel
Strand 5
A
263 271anti-parallel
Strand 6
A
347 354parallel
Strand 7
A
331 336anti-parallel
Strand 8
A
323 325anti-parallel
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There are 8 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
43 48first strand
Strand 2
B
57 64anti-parallel
Strand 3
B
67 74anti-parallel
Strand 4
B
15 25parallel
Strand 5
B
92 101anti-parallel
Strand 6
B
143 149parallel
Strand 7
B
129 137anti-parallel
Strand 8
B
117 126anti-parallel
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There are 8 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
207 208first strand
Strand 2
B
225 230anti-parallel
Strand 3
B
237 242anti-parallel
Strand 4
B
178 187parallel
Strand 5
B
263 271anti-parallel
Strand 6
B
347 354parallel
Strand 7
B
331 336anti-parallel
Strand 8
B
323 326anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il