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


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 4ECD entry

There are 2 chains in PDB entry 4ECD (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 0SER 389
B
 MET 1SER 389
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 18 helices in PDB entry 4ECD. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
29 40Right-handed alpha
Helix 2
2
A
140 159Right-handed alpha
Helix 3
3
A
182 184Right-handed 310
Helix 4
4
A
185 192Right-handed alpha
Helix 5
5
A
198 211Right-handed alpha
Helix 6
6
A
215 219Right-handed 310
Helix 7
7
A
243 254Right-handed alpha
Helix 8
8
A
347 372Right-handed alpha
Helix 9
9
A
375 387Right-handed alpha
Helix 10
10
B
29 42Right-handed alpha
Helix 11
11
B
140 159Right-handed alpha
Helix 12
12
B
182 184Right-handed 310
Helix 13
13
B
185 192Right-handed alpha
Helix 14
14
B
198 212Right-handed alpha
Helix 15
15
B
215 219Right-handed 310
Helix 16
16
B
243 254Right-handed alpha
Helix 17
17
B
347 372Right-handed alpha
Helix 18
18
B
375 388Right-handed alpha
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There are 7 sheets in PDB entry 4ECD. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G,

There are 4 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
3 7first strand
Strand 2
A
14 20anti-parallel
Strand 3
A
73 78anti-parallel
Strand 4
A
57 61anti-parallel
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There are 2 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
63 64first strand
Strand 2
A
67 68anti-parallel
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There are 10 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
172 173first strand
Strand 2
A
161 169anti-parallel
Strand 3
A
221 228anti-parallel
Strand 4
A
309 315anti-parallel
Strand 5
A
258 263anti-parallel
Strand 6
B
258 263anti-parallel
Strand 7
B
309 315anti-parallel
Strand 8
B
221 228anti-parallel
Strand 9
B
161 169anti-parallel
Strand 10
B
172 173anti-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
299 300first strand
Strand 2
A
303 304anti-parallel
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There are 4 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
3 7first strand
Strand 2
B
14 20anti-parallel
Strand 3
B
73 78anti-parallel
Strand 4
B
56 61anti-parallel
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There are 2 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
63 64first strand
Strand 2
B
67 68anti-parallel
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There are 2 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
299 300first strand
Strand 2
B
303 304anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il