Analysis of interatomic Contacts of Structural Units in PDB entry:
4IB2


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 4IB2 entry

There are 2 chains in PDB entry 4IB2 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 32GLU 278
B
 ALA 36GLU 278
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 4IB2. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
32 37Right-handed alpha
Helix 2
2
A
47 62Right-handed alpha
Helix 3
3
A
75 83Right-handed alpha
Helix 4
4
A
94 105Right-handed alpha
Helix 5
5
A
128 132Right-handed 310
Helix 6
6
A
143 157Right-handed alpha
Helix 7
7
A
166 170Right-handed 310
Helix 8
8
A
171 173Right-handed 310
Helix 9
9
A
188 196Right-handed 310
Helix 10
10
A
205 212Right-handed alpha
Helix 11
11
A
215 220Right-handed alpha
Helix 12
12
A
228 234Right-handed alpha
Helix 13
13
A
247 258Right-handed alpha
Helix 14
14
A
259 270Right-handed alpha
Helix 15
15
B
47 62Right-handed alpha
Helix 16
16
B
75 83Right-handed alpha
Helix 17
17
B
94 105Right-handed alpha
Helix 18
18
B
128 132Right-handed 310
Helix 19
19
B
143 157Right-handed alpha
Helix 20
20
B
166 170Right-handed 310
Helix 21
21
B
171 173Right-handed 310
Helix 22
22
B
188 196Right-handed 310
Helix 23
23
B
205 212Right-handed alpha
Helix 24
24
B
215 220Right-handed alpha
Helix 25
25
B
228 234Right-handed alpha
Helix 26
26
B
247 258Right-handed alpha
Helix 27
27
B
259 270Right-handed alpha
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There are 6 sheets in PDB entry 4IB2. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

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
65 70first strand
Strand 2
A
38 43parallel
Strand 3
A
88 93parallel
Strand 4
A
235 241anti-parallel
Strand 5
A
108 116anti-parallel
Strand 6
A
275 276anti-parallel
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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
A
183 187first strand
Strand 2
A
137 141parallel
Strand 3
A
201 204parallel
Strand 4
A
120 123anti-parallel
Strand 5
A
222 223anti-parallel
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There are 2 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
161 162first strand
Strand 2
A
175 177anti-parallel
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There are 6 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
65 70first strand
Strand 2
B
38 43parallel
Strand 3
B
88 93parallel
Strand 4
B
236 240anti-parallel
Strand 5
B
109 116anti-parallel
Strand 6
B
275 276anti-parallel
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There are 5 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
183 187first strand
Strand 2
B
137 141parallel
Strand 3
B
201 204parallel
Strand 4
B
120 123anti-parallel
Strand 5
B
222 223anti-parallel
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There are 2 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
161 162first strand
Strand 2
B
175 177anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il