Analysis of interatomic Contacts of Structural Units in PDB entry:
3A9I


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 3A9I entry

There is 1 chain in PDB entry 3A9I (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ARG 2ALA 376
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 18 helices in PDB entry 3A9I. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
12 17Right-handed 310
Helix 2
2
A
23 38Right-handed alpha
Helix 3
3
A
50 62Right-handed alpha
Helix 4
4
A
76 86Right-handed alpha
Helix 5
5
A
108 127Right-handed alpha
Helix 6
6
A
138 142Right-handed 310
Helix 7
7
A
143 155Right-handed alpha
Helix 8
8
A
156 158Right-handed 310
Helix 9
9
A
171 187Right-handed alpha
Helix 10
10
A
202 214Right-handed alpha
Helix 11
11
A
221 225Right-handed 310
Helix 12
12
A
233 245Right-handed alpha
Helix 13
13
A
245 253Right-handed alpha
Helix 14
14
A
254 256Right-handed 310
Helix 15
15
A
257 270Right-handed alpha
Helix 16
16
A
307 312Right-handed 310
Helix 17
17
A
341 358Right-handed alpha
Helix 18
18
A
362 375Right-handed alpha
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There is 1 sheet ( A) in PDB entry 3A9I.

There are 9 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
5 11first strand
Strand 2
A
41 44parallel
Strand 3
A
68 74parallel
Strand 4
A
90 95parallel
Strand 5
A
131 136parallel
Strand 6
A
160 165parallel
Strand 7
A
191 196parallel
Strand 8
A
217 220parallel
Strand 9
A
5 11parallel
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