Analysis of interatomic Contacts of Structural Units in PDB entry:
2IRU


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 2IRU entry

There are 2 chains in PDB entry 2IRU (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 6ASP 291
B
 GLN 10ASP 291
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 15 helices in PDB entry 2IRU. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
28 48Right-handed alpha
Helix 2
2
A
98 108Right-handed alpha
Helix 3
3
A
148 165Right-handed alpha
Helix 4
4
A
191 210Right-handed alpha
Helix 5
5
A
219 223Right-handed 310
Helix 6
6
A
231 235Right-handed 310
Helix 7
7
A
259 264Right-handed alpha
Helix 8
8
A
273 284Right-handed alpha
Helix 9
9
B
28 48Right-handed alpha
Helix 10
10
B
98 108Right-handed alpha
Helix 11
11
B
148 166Right-handed alpha
Helix 12
12
B
191 210Right-handed alpha
Helix 13
13
B
231 235Right-handed 310
Helix 14
14
B
259 265Right-handed alpha
Helix 15
15
B
272 284Right-handed alpha
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There are 9 sheets in PDB entry 2IRU. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I,

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
66 68first strand
Strand 2
A
53 56anti-parallel
Strand 3
A
112 115anti-parallel
Strand 4
A
240 241anti-parallel
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There are 2 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
80 84first strand
Strand 2
A
91 95anti-parallel
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There are 4 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
118 122first strand
Strand 2
A
129 143anti-parallel
Strand 3
A
227 230anti-parallel
Strand 4
A
214 215parallel
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There are 5 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
118 122first strand
Strand 2
A
129 143anti-parallel
Strand 3
A
180 190anti-parallel
Strand 4
A
171 174anti-parallel
Strand 5
A
256 257anti-parallel
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There are 2 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
253 254first strand
Strand 2
A
271 272anti-parallel
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There are 4 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
66 68first strand
Strand 2
B
53 56anti-parallel
Strand 3
B
112 115anti-parallel
Strand 4
B
240 241anti-parallel
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There are 2 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
80 85first strand
Strand 2
B
90 95anti-parallel
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There are 4 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
118 122first strand
Strand 2
B
129 143anti-parallel
Strand 3
B
227 230anti-parallel
Strand 4
B
214 215parallel
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There are 5 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
118 122first strand
Strand 2
B
129 143anti-parallel
Strand 3
B
180 190anti-parallel
Strand 4
B
171 174anti-parallel
Strand 5
B
256 257anti-parallel
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