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


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 4ERN entry

There is 1 chain in PDB entry 4ERN (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ILE 502ALA 730
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 13 helices in PDB entry 4ERN. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
515 525Right-handed alpha
Helix 2
2
A
527 529Right-handed 310
Helix 3
3
A
530 537Right-handed alpha
Helix 4
4
A
537 553Right-handed alpha
Helix 5
5
A
564 575Right-handed alpha
Helix 6
6
A
585 599Right-handed alpha
Helix 7
7
A
609 612Right-handed 310
Helix 8
8
A
632 644Right-handed alpha
Helix 9
9
A
667 669Right-handed 310
Helix 10
10
A
670 683Right-handed alpha
Helix 11
11
A
695 699Right-handed 310
Helix 12
12
A
705 719Right-handed alpha
Helix 13
13
A
720 725Right-handed 310
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There is 1 sheet ( A) in PDB entry 4ERN.

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
579 580first strand
Strand 2
A
604 607parallel
Strand 3
A
558 561parallel
Strand 4
A
622 625parallel
Strand 5
A
657 664parallel
Strand 6
A
505 512parallel
Strand 7
A
686 690parallel
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