Analysis of interatomic Contacts of Structural Units in PDB entry:
3NH4


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 3NH4 entry

There is 1 chain in PDB entry 3NH4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 7ARG 309
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 10 helices in PDB entry 3NH4. 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
38 40Right-handed 310
Helix 3
3
A
54 61Right-handed alpha
Helix 4
4
A
68 72Right-handed 310
Helix 5
5
A
74 79Right-handed alpha
Helix 6
6
A
87 101Right-handed alpha
Helix 7
7
A
132 146Right-handed alpha
Helix 8
8
A
166 170Right-handed 310
Helix 9
9
A
187 210Right-handed alpha
Helix 10
10
A
284 288Right-handed 310
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There are 2 sheets in PDB entry 3NH4. Click on sheet of interest to get list of strands forming it: A, B,

There are 9 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
42 43first strand
Strand 2
A
46 52anti-parallel
Strand 3
A
14 18parallel
Strand 4
A
111 117parallel
Strand 5
A
172 179parallel
Strand 6
A
123 128anti-parallel
Strand 7
A
151 155parallel
Strand 8
A
217 228parallel
Strand 9
A
294 304anti-parallel
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There are 3 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
240 242first strand
Strand 2
A
259 263anti-parallel
Strand 3
A
268 270anti-parallel
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