Analysis of interatomic Contacts of Structural Units in PDB entry:
4EC5


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 4EC5 entry

There are 2 chains in PDB entry 4EC5 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 41PRO 274
B
 HIS 52PRO 274
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 4EC5. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
62 74Right-handed alpha
Helix 2
2
A
96 111Right-handed alpha
Helix 3
3
A
155 164Right-handed alpha
Helix 4
4
A
165 167Right-handed 310
Helix 5
5
A
187 203Right-handed alpha
Helix 6
6
A
218 232Right-handed alpha
Helix 7
7
A
247 249Right-handed 310
Helix 8
8
A
257 272Right-handed alpha
Helix 9
9
B
62 74Right-handed alpha
Helix 10
10
B
96 111Right-handed alpha
Helix 11
11
B
155 164Right-handed alpha
Helix 12
12
B
165 167Right-handed 310
Helix 13
13
B
187 202Right-handed alpha
Helix 14
14
B
218 232Right-handed alpha
Helix 15
15
B
257 272Right-handed alpha
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There are 5 sheets in PDB entry 4EC5. Click on sheet of interest to get list of strands forming it: A, B, C, D, E,

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
42 44first strand
Strand 2
A
53 61anti-parallel
Strand 3
A
86 95anti-parallel
Strand 4
A
145 150parallel
Strand 5
A
181 186anti-parallel
Strand 6
A
172 176anti-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
77 79first strand
Strand 2
A
121 126parallel
Strand 3
A
113 118anti-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
A
242 246first strand
Strand 2
A
251 255anti-parallel
Strand 3
A
209 213anti-parallel
Strand 4
B
209 213anti-parallel
Strand 5
B
251 255anti-parallel
Strand 6
B
242 246anti-parallel
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There are 5 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
53 61first strand
Strand 2
B
86 95anti-parallel
Strand 3
B
145 150parallel
Strand 4
B
181 186anti-parallel
Strand 5
B
172 176anti-parallel
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There are 3 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
77 79first strand
Strand 2
B
121 126parallel
Strand 3
B
113 118anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il