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


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 1IUN entry

There are 2 chains in PDB entry 1IUN (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 2ALA 273
B
 ALA 2LYS 277
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 29 helices in PDB entry 1IUN. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
39 45Right-handed alpha
Helix 2
2
A
46 53Right-handed alpha
Helix 3
3
A
77 92Right-handed alpha
Helix 4
4
A
103 116Right-handed alpha
Helix 5
5
A
136 144Right-handed alpha
Helix 6
6
A
148 160Right-handed alpha
Helix 7
7
A
162 166Right-handed 310
Helix 8
8
A
167 179Right-handed alpha
Helix 9
9
A
182 188Right-handed alpha
Helix 10
10
A
195 203Right-handed alpha
Helix 11
11
A
205 210Right-handed alpha
Helix 12
12
A
228 239Right-handed alpha
Helix 13
13
A
253 258Right-handed alpha
Helix 14
14
A
258 272Right-handed alpha
Helix 15
15
B
2 6Right-handed 310
Helix 16
16
B
39 45Right-handed alpha
Helix 17
17
B
47 53Right-handed alpha
Helix 18
18
B
77 92Right-handed alpha
Helix 19
19
B
103 116Right-handed alpha
Helix 20
20
B
136 144Right-handed alpha
Helix 21
21
B
148 160Right-handed alpha
Helix 22
22
B
162 166Right-handed 310
Helix 23
23
B
167 179Right-handed alpha
Helix 24
24
B
182 188Right-handed alpha
Helix 25
25
B
195 203Right-handed alpha
Helix 26
26
B
205 210Right-handed alpha
Helix 27
27
B
228 239Right-handed alpha
Helix 28
28
B
253 258Right-handed alpha
Helix 29
29
B
258 272Right-handed alpha
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There is 1 sheet ( A) in PDB entry 1IUN.

There are 16 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
8 12first strand
Strand 2
A
15 22anti-parallel
Strand 3
A
56 60anti-parallel
Strand 4
A
27 31parallel
Strand 5
A
97 102parallel
Strand 6
A
120 126parallel
Strand 7
A
216 221parallel
Strand 8
A
242 247parallel
Strand 9
B
242 247anti-parallel
Strand 10
B
216 221parallel
Strand 11
B
120 126parallel
Strand 12
B
97 102parallel
Strand 13
B
27 31parallel
Strand 14
B
56 60parallel
Strand 15
B
15 22anti-parallel
Strand 16
B
8 12anti-parallel
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