Analysis of interatomic Contacts of Structural Units in PDB entry:
1S3K


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 1S3K entry

There are 2 chains in PDB entry 1S3K (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
L
 ASP 1ARG 216
H
 GLU 1PRO 219
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 9 helices in PDB entry 1S3K. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
L
84 88Right-handed 310
Helix 2
2
L
126 131Right-handed alpha
Helix 3
3
L
188 192Right-handed alpha
Helix 4
4
H
28 32Right-handed 310
Helix 5
5
H
74 76Right-handed 310
Helix 6
6
H
87 91Right-handed 310
Helix 7
7
H
162 164Right-handed 310
Helix 8
8
H
193 195Right-handed 310
Helix 9
9
H
207 210Right-handed 310
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There are 11 sheets in PDB entry 1S3K. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K,

There are 4 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
4 7first strand
Strand 2
L
19 25anti-parallel
Strand 3
L
75 80anti-parallel
Strand 4
L
67 72anti-parallel
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There are 6 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
10 14first strand
Strand 2
L
107 112parallel
Strand 3
L
89 95anti-parallel
Strand 4
L
38 43anti-parallel
Strand 5
L
50 54anti-parallel
Strand 6
L
58 59anti-parallel
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There are 4 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
10 14first strand
Strand 2
L
107 112parallel
Strand 3
L
89 95anti-parallel
Strand 4
L
102 103anti-parallel
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There are 4 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
119 123first strand
Strand 2
L
134 144anti-parallel
Strand 3
L
178 187anti-parallel
Strand 4
L
164 168anti-parallel
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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
L
158 159first strand
Strand 2
L
150 155anti-parallel
Strand 3
L
196 202anti-parallel
Strand 4
L
210 215anti-parallel
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There are 4 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
3 7first strand
Strand 2
H
18 25anti-parallel
Strand 3
H
78 83anti-parallel
Strand 4
H
68 73anti-parallel
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There are 6 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
11 12first strand
Strand 2
H
113 117parallel
Strand 3
H
92 100anti-parallel
Strand 4
H
34 39anti-parallel
Strand 5
H
45 51anti-parallel
Strand 6
H
58 59anti-parallel
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There are 4 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
11 12first strand
Strand 2
H
113 117parallel
Strand 3
H
92 100anti-parallel
Strand 4
H
104 109anti-parallel
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There are 4 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
126 130first strand
Strand 2
H
141 151anti-parallel
Strand 3
H
182 191anti-parallel
Strand 4
H
169 171anti-parallel
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There are 4 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
126 130first strand
Strand 2
H
141 151anti-parallel
Strand 3
H
182 191anti-parallel
Strand 4
H
175 176anti-parallel
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There are 3 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
157 160first strand
Strand 2
H
200 206anti-parallel
Strand 3
H
211 217anti-parallel
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