Analysis of interatomic Contacts of Structural Units in PDB entry:
4QA9


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 4QA9 entry

There is 1 chain in PDB entry 4QA9 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER -2LEU 385
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 21 helices in PDB entry 4QA9. 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 22Right-handed alpha
Helix 2
2
A
38 52Right-handed alpha
Helix 3
3
A
54 64Right-handed alpha
Helix 4
4
A
101 104Right-handed 310
Helix 5
5
A
105 114Right-handed alpha
Helix 6
6
A
121 124Right-handed 310
Helix 7
7
A
136 140Right-handed 310
Helix 8
8
A
148 164Right-handed alpha
Helix 9
9
A
174 187Right-handed alpha
Helix 10
10
A
214 224Right-handed alpha
Helix 11
11
A
224 231Right-handed alpha
Helix 12
12
A
232 241Right-handed alpha
Helix 13
13
A
241 251Right-handed alpha
Helix 14
14
A
252 267Right-handed alpha
Helix 15
15
A
273 277Right-handed 310
Helix 16
16
A
279 294Right-handed alpha
Helix 17
17
A
295 306Right-handed alpha
Helix 18
18
A
307 310Right-handed 310
Helix 19
19
A
339 347Right-handed alpha
Helix 20
20
A
362 367Right-handed alpha
Helix 21
21
A
367 384Right-handed alpha
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There is 1 sheet ( A) in PDB entry 4QA9.

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
2 4first strand
Strand 2
A
67 72anti-parallel
Strand 3
A
75 82anti-parallel
Strand 4
A
126 131anti-parallel
Strand 5
A
90 95parallel
Strand 6
A
168 172parallel
Strand 7
A
191 196parallel
Strand 8
A
326 330parallel
Strand 9
A
350 355parallel
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