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


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 2CAH entry

There are 2 chains in PDB entry 2CAH (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 4ARG 52
A
 HIS 54LEU 478
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 19 helices in PDB entry 2CAH. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
34 45Right-handed alpha
Helix 2
2
A
77 79Right-handed 310
Helix 3
3
A
137 147Right-handed 310
Helix 4
4
A
158 167Right-handed alpha
Helix 5
5
A
169 179Right-handed 310
Helix 6
6
A
181 183Right-handed 310
Helix 7
7
A
226 235Right-handed alpha
Helix 8
8
A
239 249Right-handed alpha
Helix 9
9
A
265 269Right-handed 310
Helix 10
10
A
304 307Right-handed alpha
Helix 11
11
A
328 344Right-handed alpha
Helix 12
12
A
349 351Right-handed 310
Helix 13
13
A
353 355Right-handed 310
Helix 14
14
A
394 396Right-handed 310
Helix 15
15
A
412 414Right-handed 310
Helix 16
16
A
420 428Right-handed alpha
Helix 17
17
A
431 447Right-handed alpha
Helix 18
18
A
450 463Right-handed alpha
Helix 19
19
A
465 476Right-handed alpha
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There is 1 sheet ( A) in PDB entry 2CAH.

There are 8 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
120 127first strand
Strand 2
A
110 117anti-parallel
Strand 3
A
85 93anti-parallel
Strand 4
A
57 66anti-parallel
Strand 5
A
290 299anti-parallel
Strand 6
A
255 264anti-parallel
Strand 7
A
208 217anti-parallel
Strand 8
A
199 202anti-parallel
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