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


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 1SSQ entry

There are 2 chains in PDB entry 1SSQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1SER 241
D
 MET 1ILE 257
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 17 helices in PDB entry 1SSQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
2 20Right-handed alpha
Helix 2
2
A
20 31Right-handed alpha
Helix 3
3
A
36 50Right-handed alpha
Helix 4
4
A
55 70Right-handed alpha
Helix 5
5
A
71 88Right-handed alpha
Helix 6
6
A
94 101Right-handed alpha
Helix 7
7
A
101 118Right-handed alpha
Helix 8
8
A
121 137Right-handed alpha
Helix 9
9
D
2 20Right-handed alpha
Helix 10
10
D
23 31Right-handed alpha
Helix 11
11
D
36 50Right-handed alpha
Helix 12
12
D
55 70Right-handed alpha
Helix 13
13
D
71 88Right-handed alpha
Helix 14
14
D
94 101Right-handed alpha
Helix 15
15
D
101 118Right-handed alpha
Helix 16
16
D
121 137Right-handed alpha
Helix 17
17
D
247 252Right-handed alpha
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There are 6 sheets in PDB entry 1SSQ. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

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
139 140first strand
Strand 2
A
159 160parallel
Strand 3
A
177 179parallel
Strand 4
A
203 205parallel
Strand 5
A
221 222parallel
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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
145 146first strand
Strand 2
A
165 166parallel
Strand 3
A
191 192parallel
Strand 4
A
209 210parallel
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There are 6 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
151 152first strand
Strand 2
A
171 172parallel
Strand 3
A
197 198parallel
Strand 4
A
215 216parallel
Strand 5
A
231 233parallel
Strand 6
A
238 239anti-parallel
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There are 5 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
139 140first strand
Strand 2
D
159 160parallel
Strand 3
D
177 179parallel
Strand 4
D
203 205parallel
Strand 5
D
221 222parallel
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There are 4 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
145 146first strand
Strand 2
D
165 166parallel
Strand 3
D
191 192parallel
Strand 4
D
209 210parallel
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There are 6 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
151 153first strand
Strand 2
D
171 173parallel
Strand 3
D
197 198parallel
Strand 4
D
215 216parallel
Strand 5
D
230 233parallel
Strand 6
D
238 242anti-parallel
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