Analysis of interatomic Contacts of Structural Units in PDB entry:
3A4U


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 3A4U entry

There are 2 chains in PDB entry 3A4U (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LEU 41THR 268
B
 GLU 66LYS 143
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 3A4U. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
48 51Right-handed 310
Helix 2
2
A
177 181Right-handed 310
Helix 3
3
A
182 186Right-handed 310
Helix 4
4
B
68 80Right-handed alpha
Helix 5
5
B
90 96Right-handed alpha
Helix 6
6
B
113 129Right-handed alpha
Helix 7
7
B
137 143Right-handed alpha
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There are 4 sheets in PDB entry 3A4U. 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
A
43 46first strand
Strand 2
A
256 268anti-parallel
Strand 3
A
80 83anti-parallel
Strand 4
A
74 75anti-parallel
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There are 6 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
52 53first strand
Strand 2
A
256 268anti-parallel
Strand 3
A
103 113anti-parallel
Strand 4
A
201 208anti-parallel
Strand 5
A
211 217anti-parallel
Strand 6
A
228 233anti-parallel
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There are 7 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
67 71first strand
Strand 2
A
90 95anti-parallel
Strand 3
A
243 249anti-parallel
Strand 4
A
122 128anti-parallel
Strand 5
A
145 152anti-parallel
Strand 6
A
164 171anti-parallel
Strand 7
A
188 191anti-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
B
88 89first strand
Strand 2
B
135 136anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il