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


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 4EPK entry

There are 2 chains in PDB entry 4EPK (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 3ASN 333
B
 PRO 4ASN 333
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 37 helices in PDB entry 4EPK. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
17 26Right-handed alpha
Helix 2
2
A
56 58Right-handed 310
Helix 3
3
A
59 70Right-handed alpha
Helix 4
4
A
81 84Right-handed 310
Helix 5
5
A
89 110Right-handed alpha
Helix 6
6
A
125 139Right-handed alpha
Helix 7
7
A
157 170Right-handed alpha
Helix 8
8
A
188 190Right-handed 310
Helix 9
9
A
191 196Right-handed alpha
Helix 10
10
A
196 213Right-handed alpha
Helix 11
11
A
213 218Right-handed alpha
Helix 12
12
A
228 231Right-handed 310
Helix 13
13
A
232 247Right-handed alpha
Helix 14
14
A
247 252Right-handed alpha
Helix 15
15
A
257 264Right-handed 310
Helix 16
16
A
273 285Right-handed alpha
Helix 17
17
A
305 310Right-handed alpha
Helix 18
18
A
314 323Right-handed alpha
Helix 19
19
A
323 330Right-handed alpha
Helix 20
20
B
17 25Right-handed alpha
Helix 21
21
B
54 58Right-handed 310
Helix 22
22
B
59 70Right-handed alpha
Helix 23
23
B
81 84Right-handed 310
Helix 24
24
B
89 109Right-handed alpha
Helix 25
25
B
125 140Right-handed alpha
Helix 26
26
B
157 171Right-handed alpha
Helix 27
27
B
191 196Right-handed alpha
Helix 28
28
B
196 213Right-handed alpha
Helix 29
29
B
214 218Right-handed 310
Helix 30
30
B
228 231Right-handed 310
Helix 31
31
B
232 247Right-handed alpha
Helix 32
32
B
247 252Right-handed alpha
Helix 33
33
B
257 265Right-handed 310
Helix 34
34
B
273 285Right-handed alpha
Helix 35
35
B
305 310Right-handed alpha
Helix 36
36
B
314 323Right-handed alpha
Helix 37
37
B
323 331Right-handed alpha
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There are 6 sheets in PDB entry 4EPK. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

There are 3 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
6 12first strand
Strand 2
A
74 79parallel
Strand 3
A
115 117parallel
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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
30 34first strand
Strand 2
A
40 45anti-parallel
Strand 3
A
48 54anti-parallel
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There are 5 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
144 147first strand
Strand 2
A
174 177parallel
Strand 3
A
224 226parallel
Strand 4
A
266 268parallel
Strand 5
A
289 290parallel
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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
149 150first strand
Strand 2
A
153 154anti-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
6 12first strand
Strand 2
B
74 79parallel
Strand 3
B
115 119parallel
Strand 4
B
143 147parallel
Strand 5
B
174 177parallel
Strand 6
B
224 226parallel
Strand 7
B
266 268parallel
Strand 8
B
289 290parallel
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There are 3 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
31 34first strand
Strand 2
B
41 44anti-parallel
Strand 3
B
49 52anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il