Analysis of interatomic Contacts of Structural Units in PDB entry:
2A9S


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 2A9S entry

There are 2 chains in PDB entry 2A9S (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1GLY 167
B
 MET 1GLN 165
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 14 helices in PDB entry 2A9S. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
5 23Right-handed alpha
Helix 2
2
A
35 42Right-handed alpha
Helix 3
3
A
46 49Right-handed 310
Helix 4
4
A
59 68Right-handed alpha
Helix 5
5
A
70 78Right-handed alpha
Helix 6
6
A
81 95Right-handed alpha
Helix 7
7
A
144 166Right-handed alpha
Helix 8
8
B
5 23Right-handed alpha
Helix 9
9
B
35 42Right-handed alpha
Helix 10
10
B
46 49Right-handed 310
Helix 11
11
B
59 68Right-handed alpha
Helix 12
12
B
70 78Right-handed alpha
Helix 13
13
B
81 95Right-handed alpha
Helix 14
14
B
144 165Right-handed alpha
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There is 1 sheet ( A) in PDB entry 2A9S.

There are 10 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
133 139first strand
Strand 2
A
121 128anti-parallel
Strand 3
A
100 106anti-parallel
Strand 4
A
26 30parallel
Strand 5
A
51 57parallel
Strand 6
B
51 56anti-parallel
Strand 7
B
26 31parallel
Strand 8
B
100 106parallel
Strand 9
B
121 128anti-parallel
Strand 10
B
133 139anti-parallel
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