Analysis of interatomic Contacts of Structural Units in PDB entry:
1AH4


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 1AH4 entry

There is 1 chain in PDB entry 1AH4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 2TYR 315
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 15 helices in PDB entry 1AH4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
24 37Right-handed alpha
Helix 2
2
A
46 48Right-handed 310
Helix 3
3
A
51 63Right-handed alpha
Helix 4
4
A
69 71Right-handed 310
Helix 5
5
A
80 82Right-handed 310
Helix 6
6
A
85 99Right-handed 310
Helix 7
7
A
137 150Right-handed alpha
Helix 8
8
A
166 170Right-handed alpha
Helix 9
9
A
193 202Right-handed alpha
Helix 10
10
A
227 229Right-handed 310
Helix 11
11
A
231 240Right-handed alpha
Helix 12
12
A
244 254Right-handed alpha
Helix 13
13
A
266 273Right-handed alpha
Helix 14
14
A
282 291Right-handed alpha
Helix 15
15
A
301 303Right-handed 310
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There are 3 sheets in PDB entry 1AH4. Click on sheet of interest to get list of strands forming it: A, B, C,

There are 2 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
3 5first strand
Strand 2
A
11 13anti-parallel
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There are 4 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
41 43first strand
Strand 2
A
73 78parallel
Strand 3
A
106 109parallel
Strand 4
A
156 158parallel
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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
181 185first strand
Strand 2
A
205 209parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il