Analysis of interatomic Contacts of Structural Units in PDB entry:
1ERN


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 1ERN entry

There are 2 chains in PDB entry 1ERN (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 10PRO 221
B
 LYS 10SER 222
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 10 helices in PDB entry 1ERN. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
12 18Right-handed alpha
Helix 2
2
A
50 52Right-handed 310
Helix 3
3
A
87 89Right-handed 310
Helix 4
4
A
115 117Right-handed 310
Helix 5
5
A
151 153Right-handed 310
Helix 6
6
B
11 19Right-handed alpha
Helix 7
7
B
50 52Right-handed 310
Helix 8
8
B
87 89Right-handed 310
Helix 9
9
B
115 117Right-handed 310
Helix 10
10
B
151 153Right-handed 310
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There are 8 sheets in PDB entry 1ERN. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

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
27 29first strand
Strand 2
A
37 43anti-parallel
Strand 3
A
78 84anti-parallel
Strand 4
A
70 72anti-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
53 58first strand
Strand 2
A
96 102anti-parallel
Strand 3
A
107 113anti-parallel
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There are 3 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
128 131first strand
Strand 2
A
138 141anti-parallel
Strand 3
A
180 183anti-parallel
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There are 4 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
168 174first strand
Strand 2
A
154 162anti-parallel
Strand 3
A
191 200anti-parallel
Strand 4
A
216 219anti-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
27 29first strand
Strand 2
B
37 42anti-parallel
Strand 3
B
79 84anti-parallel
Strand 4
B
70 73anti-parallel
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There are 4 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
65 67first strand
Strand 2
B
53 58anti-parallel
Strand 3
B
96 102anti-parallel
Strand 4
B
107 113anti-parallel
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There are 3 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
128 131first strand
Strand 2
B
137 141anti-parallel
Strand 3
B
182 184anti-parallel
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There are 4 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
168 172first strand
Strand 2
B
154 162anti-parallel
Strand 3
B
191 200anti-parallel
Strand 4
B
216 219anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il