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


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 4ECM entry

There is 1 chain in PDB entry 4ECM (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PHE -4ASN 243
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 12 helices in PDB entry 4ECM. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
11 15Right-handed 310
Helix 2
2
A
22 25Right-handed 310
Helix 3
3
A
33 44Right-handed alpha
Helix 4
4
A
57 66Right-handed alpha
Helix 5
5
A
68 72Right-handed 310
Helix 6
6
A
85 92Right-handed alpha
Helix 7
7
A
93 98Right-handed alpha
Helix 8
8
A
115 124Right-handed alpha
Helix 9
9
A
138 141Right-handed 310
Helix 10
10
A
177 183Right-handed alpha
Helix 11
11
A
194 205Right-handed alpha
Helix 12
12
A
222 233Right-handed alpha
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There are 4 sheets in PDB entry 4ECM. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 7 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
74 79first strand
Strand 2
A
48 53parallel
Strand 3
A
1 6parallel
Strand 4
A
101 106parallel
Strand 5
A
166 174anti-parallel
Strand 6
A
143 148anti-parallel
Strand 7
A
151 157anti-parallel
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There are 7 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
74 79first strand
Strand 2
A
48 53parallel
Strand 3
A
1 6parallel
Strand 4
A
101 106parallel
Strand 5
A
166 174anti-parallel
Strand 6
A
129 135anti-parallel
Strand 7
A
208 212parallel
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There are 2 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
27 28first strand
Strand 2
A
31 32anti-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
109 111first strand
Strand 2
A
217 219anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il