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


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 3QEN entry

There are 2 chains in PDB entry 3QEN (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 19LEU 260
B
 THR 19LEU 260
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 27 helices in PDB entry 3QEN. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
33 42Right-handed alpha
Helix 2
2
A
43 45Right-handed 310
Helix 3
3
A
53 59Right-handed alpha
Helix 4
4
A
72 88Right-handed alpha
Helix 5
5
A
88 115Right-handed alpha
Helix 6
6
A
129 136Right-handed alpha
Helix 7
7
A
136 144Right-handed alpha
Helix 8
8
A
148 166Right-handed alpha
Helix 9
9
A
167 170Right-handed 310
Helix 10
10
A
181 193Right-handed alpha
Helix 11
11
A
194 199Right-handed alpha
Helix 12
12
A
201 216Right-handed alpha
Helix 13
13
A
225 231Right-handed 310
Helix 14
14
A
246 259Right-handed alpha
Helix 15
15
B
33 45Right-handed alpha
Helix 16
16
B
53 58Right-handed alpha
Helix 17
17
B
72 88Right-handed alpha
Helix 18
18
B
88 115Right-handed alpha
Helix 19
19
B
129 136Right-handed alpha
Helix 20
20
B
136 144Right-handed alpha
Helix 21
21
B
148 166Right-handed alpha
Helix 22
22
B
167 171Right-handed 310
Helix 23
23
B
181 193Right-handed alpha
Helix 24
24
B
195 200Right-handed 310
Helix 25
25
B
201 217Right-handed alpha
Helix 26
26
B
225 230Right-handed 310
Helix 27
27
B
246 260Right-handed alpha
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There are 2 sheets in PDB entry 3QEN. Click on sheet of interest to get list of strands forming it: A, B,

There are 5 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
48 51first strand
Strand 2
A
123 127parallel
Strand 3
A
22 27parallel
Strand 4
A
174 179parallel
Strand 5
A
233 237parallel
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There are 5 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
48 51first strand
Strand 2
B
123 127parallel
Strand 3
B
22 27parallel
Strand 4
B
174 179parallel
Strand 5
B
233 237parallel
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