Analysis of interatomic Contacts of Structural Units in PDB entry:
1K3R


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 1K3R entry

There are 2 chains in PDB entry 1K3R (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1GLN 262
B
 MET 1ASP 264
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 15 helices in PDB entry 1K3R. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
20 38Right-handed alpha
Helix 2
2
A
53 66Right-handed alpha
Helix 3
3
A
67 75Right-handed alpha
Helix 4
4
A
78 87Right-handed 310
Helix 5
5
A
174 182Right-handed alpha
Helix 6
6
A
199 208Right-handed alpha
Helix 7
7
A
245 261Right-handed alpha
Helix 8
8
B
20 38Right-handed alpha
Helix 9
9
B
53 66Right-handed alpha
Helix 10
10
B
67 75Right-handed alpha
Helix 11
11
B
78 82Right-handed 310
Helix 12
12
B
83 87Right-handed 310
Helix 13
13
B
173 181Right-handed alpha
Helix 14
14
B
199 209Right-handed alpha
Helix 15
15
B
245 261Right-handed alpha
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There are 4 sheets in PDB entry 1K3R. 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
166 173first strand
Strand 2
A
42 47parallel
Strand 3
A
5 11parallel
Strand 4
A
212 216parallel
Strand 5
A
185 189parallel
Strand 6
A
231 233parallel
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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
A
105 113first strand
Strand 2
A
118 121anti-parallel
Strand 3
A
127 129anti-parallel
Strand 4
A
152 155parallel
Strand 5
A
139 146anti-parallel
Strand 6
A
105 113anti-parallel
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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
B
166 168first strand
Strand 2
B
42 46parallel
Strand 3
B
5 11parallel
Strand 4
B
212 216parallel
Strand 5
B
185 189parallel
Strand 6
B
231 233parallel
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There are 6 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
105 113first strand
Strand 2
B
118 121anti-parallel
Strand 3
B
126 129anti-parallel
Strand 4
B
152 155parallel
Strand 5
B
139 146anti-parallel
Strand 6
B
105 113anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il