Analysis of interatomic Contacts of Structural Units in PDB entry:
3A9L


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 3A9L entry

There are 2 chains in PDB entry 3A9L (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 4GLU 210
B
 THR 4GLU 210
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 22 helices in PDB entry 3A9L. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
9 17Right-handed alpha
Helix 2
2
A
47 60Right-handed alpha
Helix 3
3
A
73 78Right-handed 310
Helix 4
4
A
80 84Right-handed 310
Helix 5
5
A
86 95Right-handed alpha
Helix 6
6
A
119 133Right-handed alpha
Helix 7
7
A
151 156Right-handed 310
Helix 8
8
A
168 174Right-handed alpha
Helix 9
9
A
175 179Right-handed 310
Helix 10
10
A
181 185Right-handed 310
Helix 11
11
A
189 210Right-handed alpha
Helix 12
12
B
9 17Right-handed alpha
Helix 13
13
B
47 60Right-handed alpha
Helix 14
14
B
73 78Right-handed 310
Helix 15
15
B
80 84Right-handed 310
Helix 16
16
B
86 95Right-handed alpha
Helix 17
17
B
119 133Right-handed alpha
Helix 18
18
B
151 156Right-handed 310
Helix 19
19
B
168 173Right-handed alpha
Helix 20
20
B
174 179Right-handed 310
Helix 21
21
B
181 185Right-handed 310
Helix 22
22
B
189 208Right-handed alpha
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There is 1 sheet ( A) in PDB entry 3A9L.

There are 14 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
138 139first strand
Strand 2
A
113 116parallel
Strand 3
A
162 167anti-parallel
Strand 4
A
98 105parallel
Strand 5
A
34 42parallel
Strand 6
A
62 68parallel
Strand 7
A
23 29anti-parallel
Strand 8
B
23 29anti-parallel
Strand 9
B
62 68anti-parallel
Strand 10
B
34 42parallel
Strand 11
B
98 105parallel
Strand 12
B
162 167parallel
Strand 13
B
113 116anti-parallel
Strand 14
B
138 139parallel
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