Analysis of interatomic Contacts of Structural Units in PDB entry:
4IU2


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 4IU2 entry

There are 2 chains in PDB entry 4IU2 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 HIS 4PRO 212
B
 ASN 5GLU 242
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 14 helices in PDB entry 4IU2. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
44 49Right-handed alpha
Helix 2
2
A
94 97Right-handed 310
Helix 3
3
A
166 179Right-handed alpha
Helix 4
4
A
190 196Right-handed alpha
Helix 5
5
B
33 35Right-handed 310
Helix 6
6
B
71 74Right-handed 310
Helix 7
7
B
80 85Right-handed alpha
Helix 8
8
B
132 147Right-handed alpha
Helix 9
9
B
170 181Right-handed alpha
Helix 10
10
B
186 190Right-handed 310
Helix 11
11
B
195 199Right-handed 310
Helix 12
12
B
202 217Right-handed alpha
Helix 13
13
B
221 228Right-handed alpha
Helix 14
14
B
228 237Right-handed alpha
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There are 9 sheets in PDB entry 4IU2. 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
34 37first strand
Strand 2
A
52 60anti-parallel
Strand 3
A
125 133anti-parallel
Strand 4
A
80 82anti-parallel
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There are 4 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
34 37first strand
Strand 2
A
52 60anti-parallel
Strand 3
A
125 133anti-parallel
Strand 4
A
91 92anti-parallel
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There are 6 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
39 42first strand
Strand 2
A
203 207parallel
Strand 3
A
143 149anti-parallel
Strand 4
A
68 75anti-parallel
Strand 5
A
110 116anti-parallel
Strand 6
A
101 106anti-parallel
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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
39 42first strand
Strand 2
A
203 207parallel
Strand 3
A
143 149anti-parallel
Strand 4
A
68 75anti-parallel
Strand 5
A
159 161anti-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
152 153first strand
Strand 2
A
156 157anti-parallel
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There are 3 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
8 20first strand
Strand 2
B
37 51anti-parallel
Strand 3
B
57 64anti-parallel
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There are 3 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
8 20first strand
Strand 2
B
37 51anti-parallel
Strand 3
B
68 69anti-parallel
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There are 3 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
23 26first strand
Strand 2
B
114 120parallel
Strand 3
B
93 97anti-parallel
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There are 2 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
99 100first strand
Strand 2
B
103 104anti-parallel
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