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


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 3IRU entry

There are 2 chains in PDB entry 3IRU (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 HIS 0PRO 275
B
 HIS 0PRO 275
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 30 helices in PDB entry 3IRU. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
29 41Right-handed alpha
Helix 2
2
A
47 53Right-handed alpha
Helix 3
3
A
58 67Right-handed alpha
Helix 4
4
A
69 81Right-handed alpha
Helix 5
5
A
85 107Right-handed alpha
Helix 6
6
A
113 124Right-handed alpha
Helix 7
7
A
135 149Right-handed alpha
Helix 8
8
A
158 162Right-handed 310
Helix 9
9
A
169 180Right-handed alpha
Helix 10
10
A
183 185Right-handed 310
Helix 11
11
A
193 203Right-handed alpha
Helix 12
12
A
220 227Right-handed alpha
Helix 13
13
A
228 246Right-handed alpha
Helix 14
14
A
254 257Right-handed 310
Helix 15
15
A
258 271Right-handed alpha
Helix 16
16
B
29 41Right-handed alpha
Helix 17
17
B
47 53Right-handed alpha
Helix 18
18
B
58 69Right-handed alpha
Helix 19
19
B
69 81Right-handed alpha
Helix 20
20
B
85 107Right-handed alpha
Helix 21
21
B
113 123Right-handed alpha
Helix 22
22
B
135 149Right-handed alpha
Helix 23
23
B
158 162Right-handed 310
Helix 24
24
B
169 180Right-handed alpha
Helix 25
25
B
183 185Right-handed 310
Helix 26
26
B
193 203Right-handed alpha
Helix 27
27
B
220 227Right-handed alpha
Helix 28
28
B
228 246Right-handed alpha
Helix 29
29
B
254 257Right-handed 310
Helix 30
30
B
258 271Right-handed alpha
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There are 2 sheets in PDB entry 3IRU. Click on sheet of interest to get list of strands forming it: A, B,

There are 6 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
155 157first strand
Strand 2
A
127 131parallel
Strand 3
A
14 18parallel
Strand 4
A
187 191parallel
Strand 5
A
206 210parallel
Strand 6
A
250 252parallel
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There are 6 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
155 157first strand
Strand 2
B
127 131parallel
Strand 3
B
14 18parallel
Strand 4
B
187 191parallel
Strand 5
B
206 210parallel
Strand 6
B
250 252parallel
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