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


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 1NSA entry

There is 1 chain in PDB entry 1NSA (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PHE 7LEU 308
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 1NSA. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
20 32Right-handed alpha
Helix 2
2
A
43 45Right-handed 310
Helix 3
3
A
58 71Right-handed 310
Helix 4
4
A
82 88Right-handed alpha
Helix 5
5
A
15 28Right-handed alpha
Helix 6
6
A
74 89Right-handed alpha
Helix 7
7
A
94 102Right-handed alpha
Helix 8
8
A
113 121Right-handed alpha
Helix 9
9
A
143 145Right-handed 310
Helix 10
10
A
174 186Right-handed alpha
Helix 11
11
A
216 234Right-handed alpha
Helix 12
12
A
243 246Right-handed alpha
Helix 13
13
A
254 261Right-handed alpha
Helix 14
14
A
283 305Right-handed 310
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There are 2 sheets in PDB entry 1NSA. Click on sheet of interest to get list of strands forming it: A, B,

There are 4 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
74 79first strand
Strand 2
A
11 17anti-parallel
Strand 3
A
50 56anti-parallel
Strand 4
A
35 39anti-parallel
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There are 8 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
33 37first strand
Strand 2
A
48 52anti-parallel
Strand 3
A
104 108anti-parallel
Strand 4
A
61 65parallel
Strand 5
A
189 194parallel
Strand 6
A
265 270parallel
Strand 7
A
201 204anti-parallel
Strand 8
A
239 242parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il