Analysis of interatomic Contacts of Structural Units in PDB entry:
4IA3


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 4IA3 entry

There are 2 chains in PDB entry 4IA3 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 HIS 154VAL 452
B
 LYS 687GLN 696
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 13 helices in PDB entry 4IA3. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
157 173Right-handed alpha
Helix 2
2
A
179 185Right-handed 310
Helix 3
3
A
254 274Right-handed alpha
Helix 4
4
A
283 304Right-handed alpha
Helix 5
5
A
318 320Right-handed 310
Helix 6
6
A
324 330Right-handed alpha
Helix 7
7
A
334 351Right-handed alpha
Helix 8
8
A
354 367Right-handed alpha
Helix 9
9
A
376 399Right-handed alpha
Helix 10
10
A
404 433Right-handed alpha
Helix 11
11
A
433 438Right-handed alpha
Helix 12
12
A
441 448Right-handed alpha
Helix 13
13
B
688 695Right-handed alpha
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There is 1 sheet ( A) in PDB entry 4IA3.

There are 3 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
307 308first strand
Strand 2
A
313 315anti-parallel
Strand 3
A
322 323anti-parallel
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