Analysis of interatomic Contacts of Structural Units in PDB entry:
4A2S


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 4A2S entry

There is 1 chain in PDB entry 4A2S (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PRO 2GLU 248
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 12 helices in PDB entry 4A2S. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
6 18Right-handed alpha
Helix 2
2
A
32 43Right-handed alpha
Helix 3
3
A
65 75Right-handed alpha
Helix 4
4
A
92 101Right-handed alpha
Helix 5
5
A
115 126Right-handed alpha
Helix 6
6
A
135 137Right-handed 310
Helix 7
7
A
138 152Right-handed alpha
Helix 8
8
A
162 172Right-handed alpha
Helix 9
9
A
190 200Right-handed alpha
Helix 10
10
A
215 225Right-handed alpha
Helix 11
11
A
233 239Right-handed alpha
Helix 12
12
A
241 248Right-handed alpha
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There is 1 sheet ( AA) in PDB entry 4A2S.

There are 9 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
48 52first strand
Strand 2
A
229 232parallel
Strand 3
A
206 210parallel
Strand 4
A
176 179parallel
Strand 5
A
157 160parallel
Strand 6
A
129 133parallel
Strand 7
A
107 110parallel
Strand 8
A
79 83parallel
Strand 9
A
48 52parallel
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