Analysis of interatomic Contacts of Structural Units in PDB entry:
3IWN


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 3IWN entry

There are 4 chains in PDB entry 3IWN (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 C 1 G 93
B
 C 101 G 193
C
 THR 801LYS 891
D
 THR 901LYS 991
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 7 helices in PDB entry 3IWN. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
C
817 830Right-handed alpha
Helix 2
2
C
831 833Right-handed 310
Helix 3
3
C
856 867Right-handed alpha
Helix 4
4
D
917 930Right-handed alpha
Helix 5
5
D
931 933Right-handed 310
Helix 6
6
D
943 947Right-handed 310
Helix 7
7
D
956 968Right-handed alpha
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There are 4 sheets in PDB entry 3IWN. Click on sheet of interest to get list of strands forming it: A, B, C, D,

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
C
835 839first strand
Strand 2
C
849 854anti-parallel
Strand 3
C
806 810anti-parallel
Strand 4
C
878 881anti-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
C
871 872first strand
Strand 2
C
875 876anti-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
D
906 909first strand
Strand 2
D
950 954anti-parallel
Strand 3
D
935 939anti-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
D
971 972first strand
Strand 2
D
975 976anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il