Analysis of interatomic Contacts of Structural Units in PDB entry:
4K3R


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 4K3R entry

There are 3 chains in PDB entry 4K3R (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1ARG 365
B
 MET 1LEU 366
E
 GLN 0ALA 4
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 4K3R. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
7 19Right-handed alpha
Helix 2
2
A
27 30Right-handed 310
Helix 3
3
A
72 82Right-handed alpha
Helix 4
4
A
112 116Right-handed 310
Helix 5
5
A
131 143Right-handed alpha
Helix 6
6
A
144 146Right-handed 310
Helix 7
7
A
152 157Right-handed 310
Helix 8
8
A
196 206Right-handed alpha
Helix 9
9
A
243 248Right-handed alpha
Helix 10
10
A
260 272Right-handed alpha
Helix 11
11
A
321 331Right-handed alpha
Helix 12
12
B
7 18Right-handed alpha
Helix 13
13
B
27 30Right-handed 310
Helix 14
14
B
72 82Right-handed alpha
Helix 15
15
B
112 116Right-handed 310
Helix 16
16
B
132 143Right-handed alpha
Helix 17
17
B
144 146Right-handed 310
Helix 18
18
B
152 155Right-handed 310
Helix 19
19
B
197 207Right-handed alpha
Helix 20
20
B
243 248Right-handed alpha
Helix 21
21
B
260 272Right-handed alpha
Helix 22
22
B
321 332Right-handed alpha
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There are 6 sheets in PDB entry 4K3R. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

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
2 6first strand
Strand 2
A
87 93anti-parallel
Strand 3
A
96 101anti-parallel
Strand 4
A
104 109anti-parallel
Strand 5
B
301 307anti-parallel
Strand 6
B
289 295anti-parallel
Strand 7
B
280 286anti-parallel
Strand 8
B
315 320anti-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
66 71first strand
Strand 2
A
32 38anti-parallel
Strand 3
A
41 47anti-parallel
Strand 4
A
51 58anti-parallel
Strand 5
A
230 235anti-parallel
Strand 6
A
222 227anti-parallel
Strand 7
A
214 218anti-parallel
Strand 8
A
126 130anti-parallel
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There are 9 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
191 195first strand
Strand 2
A
158 163anti-parallel
Strand 3
A
166 172anti-parallel
Strand 4
A
176 183anti-parallel
Strand 5
A
357 361anti-parallel
Strand 6
A
347 351anti-parallel
Strand 7
A
335 340anti-parallel
Strand 8
A
254 259anti-parallel
Strand 9
A
309 311anti-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
A
315 320first strand
Strand 2
A
280 286anti-parallel
Strand 3
A
289 295anti-parallel
Strand 4
A
301 307anti-parallel
Strand 5
B
104 109anti-parallel
Strand 6
B
96 101anti-parallel
Strand 7
B
87 93anti-parallel
Strand 8
B
2 6anti-parallel
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There are 8 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
66 71first strand
Strand 2
B
32 38anti-parallel
Strand 3
B
41 47anti-parallel
Strand 4
B
51 58anti-parallel
Strand 5
B
230 235anti-parallel
Strand 6
B
222 227anti-parallel
Strand 7
B
213 218anti-parallel
Strand 8
B
126 131anti-parallel
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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
B
254 259first strand
Strand 2
B
335 340anti-parallel
Strand 3
B
347 351anti-parallel
Strand 4
B
357 361anti-parallel
Strand 5
B
177 196anti-parallel
Strand 6
B
157 172anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il