Analysis of interatomic Contacts of Structural Units in PDB entry:
3A2S


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 3A2S entry

There is 1 chain in PDB entry 3A2S (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
X
 GLN 1PHE 341
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 6 helices in PDB entry 3A2S. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
X
97 103Right-handed alpha
Helix 2
2
X
104 106Right-handed 310
Helix 3
3
X
112 116Right-handed 310
Helix 4
4
X
123 128Right-handed 310
Helix 5
5
X
152 157Right-handed alpha
Helix 6
6
X
291 293Right-handed 310
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There are 2 sheets in PDB entry 3A2S. Click on sheet of interest to get list of strands forming it: A, B,

There are 18 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
X
33 38first strand
Strand 2
X
2 19anti-parallel
Strand 3
X
328 341anti-parallel
Strand 4
X
310 321anti-parallel
Strand 5
X
295 305anti-parallel
Strand 6
X
271 280anti-parallel
Strand 7
X
254 266anti-parallel
Strand 8
X
231 244anti-parallel
Strand 9
X
212 228anti-parallel
Strand 10
X
183 197anti-parallel
Strand 11
X
171 180anti-parallel
Strand 12
X
144 151anti-parallel
Strand 13
X
130 137anti-parallel
Strand 14
X
88 96anti-parallel
Strand 15
X
79 85anti-parallel
Strand 16
X
55 64anti-parallel
Strand 17
X
42 52anti-parallel
Strand 18
X
2 19anti-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
X
283 285first strand
Strand 2
X
288 290anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il