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


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 4AHS entry

There are 2 chains in PDB entry 4AHS (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 57THR 210
B
 SER 57THR 210
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 14 helices in PDB entry 4AHS. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
93 108Right-handed alpha
Helix 2
2
A
117 123Right-handed alpha
Helix 3
3
A
123 134Right-handed alpha
Helix 4
4
A
145 166Right-handed alpha
Helix 5
5
A
167 169Right-handed 310
Helix 6
6
A
171 186Right-handed alpha
Helix 7
7
A
195 209Right-handed alpha
Helix 8
8
B
93 108Right-handed alpha
Helix 9
9
B
117 123Right-handed alpha
Helix 10
10
B
123 134Right-handed alpha
Helix 11
11
B
145 166Right-handed alpha
Helix 12
12
B
167 169Right-handed 310
Helix 13
13
B
171 186Right-handed alpha
Helix 14
14
B
195 209Right-handed alpha
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There are 2 sheets in PDB entry 4AHS. Click on sheet of interest to get list of strands forming it: AA, BA,

There are 5 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
84 89first strand
Strand 2
A
71 78anti-parallel
Strand 3
A
60 68anti-parallel
Strand 4
A
112 114parallel
Strand 5
A
136 138parallel
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There are 5 strands in BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
84 89first strand
Strand 2
B
71 78anti-parallel
Strand 3
B
60 68anti-parallel
Strand 4
B
112 114parallel
Strand 5
B
136 138parallel
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