Analysis of interatomic Contacts of Structural Units in PDB entry:
4S1K


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 4S1K entry

There is 1 chain in PDB entry 4S1K (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 2HIS 237
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 11 helices in PDB entry 4S1K. 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 19Right-handed alpha
Helix 2
2
A
20 22Right-handed 310
Helix 3
3
A
56 61Right-handed alpha
Helix 4
4
A
71 84Right-handed alpha
Helix 5
5
A
94 98Right-handed 310
Helix 6
6
A
132 136Right-handed 310
Helix 7
7
A
140 144Right-handed 310
Helix 8
8
A
145 149Right-handed 310
Helix 9
9
A
192 201Right-handed alpha
Helix 10
10
A
213 221Right-handed alpha
Helix 11
11
A
221 226Right-handed alpha
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There are 4 sheets in PDB entry 4S1K. Click on sheet of interest to get list of strands forming it: A, B, C, D,

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
150 152first strand
Strand 2
A
160 166anti-parallel
Strand 3
A
101 107anti-parallel
Strand 4
A
27 34anti-parallel
Strand 5
A
40 47anti-parallel
Strand 6
A
207 211anti-parallel
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There are 3 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
50 55first strand
Strand 2
A
173 179anti-parallel
Strand 3
A
116 120anti-parallel
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There are 2 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
64 65first strand
Strand 2
A
68 69anti-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
229 230first strand
Strand 2
A
236 237anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il