Analysis of interatomic Contacts of Structural Units in PDB entry:
1AHC


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 1AHC entry

There is 1 chain in PDB entry 1AHC (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ASP 1ILE 246
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 12 helices in PDB entry 1AHC. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
10 25Right-handed alpha
Helix 2
2
A
42 45Right-handed 310
Helix 3
3
A
85 93Right-handed alpha
Helix 4
4
A
110 119Right-handed alpha
Helix 5
5
A
121 125Right-handed 310
Helix 6
6
A
128 140Right-handed alpha
Helix 7
7
A
143 158Right-handed alpha
Helix 8
8
A
158 164Right-handed alpha
Helix 9
9
A
164 174Right-handed alpha
Helix 10
10
A
182 203Right-handed alpha
Helix 11
11
A
230 236Right-handed alpha
Helix 12
12
A
242 246Right-handed 310
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There are 3 sheets in PDB entry 1AHC. Click on sheet of interest to get list of strands forming it: A, B, C,

There are 6 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 5first strand
Strand 2
A
47 53parallel
Strand 3
A
59 65anti-parallel
Strand 4
A
71 76anti-parallel
Strand 5
A
79 82anti-parallel
Strand 6
A
101 104parallel
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There are 2 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
27 31first strand
Strand 2
A
34 37anti-parallel
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There are 2 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
208 216first strand
Strand 2
A
222 227anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il