Analysis of interatomic Contacts of Structural Units in PDB entry:
2I55


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 2I55 entry

There are 3 chains in PDB entry 2I55 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 4ASP 245
B
 LYS 4ASP 245
C
 LYS 4ASP 245
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 33 helices in PDB entry 2I55. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
23 36Right-handed alpha
Helix 2
2
A
47 56Right-handed alpha
Helix 3
3
A
58 63Right-handed alpha
Helix 4
4
A
85 91Right-handed alpha
Helix 5
5
A
91 108Right-handed alpha
Helix 6
6
A
136 151Right-handed alpha
Helix 7
7
A
151 164Right-handed alpha
Helix 8
8
A
165 167Right-handed 310
Helix 9
9
A
187 190Right-handed 310
Helix 10
10
A
191 196Right-handed alpha
Helix 11
11
A
197 199Right-handed 310
Helix 12
12
A
215 221Right-handed alpha
Helix 13
13
A
231 245Right-handed alpha
Helix 14
14
B
23 36Right-handed alpha
Helix 15
15
B
47 56Right-handed alpha
Helix 16
16
B
58 63Right-handed alpha
Helix 17
17
B
69 71Right-handed 310
Helix 18
18
B
85 107Right-handed alpha
Helix 19
19
B
136 151Right-handed alpha
Helix 20
20
B
151 164Right-handed alpha
Helix 21
21
B
165 167Right-handed 310
Helix 22
22
B
187 195Right-handed 310
Helix 23
23
B
215 220Right-handed alpha
Helix 24
24
B
231 243Right-handed alpha
Helix 25
25
C
23 36Right-handed alpha
Helix 26
26
C
47 56Right-handed alpha
Helix 27
27
C
57 62Right-handed 310
Helix 28
28
C
85 109Right-handed alpha
Helix 29
29
C
136 151Right-handed alpha
Helix 30
30
C
151 164Right-handed alpha
Helix 31
31
C
187 195Right-handed 310
Helix 32
32
C
215 221Right-handed alpha
Helix 33
33
C
231 245Right-handed alpha
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There are 6 sheets in PDB entry 2I55. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

There are 7 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
79 83first strand
Strand 2
A
73 76anti-parallel
Strand 3
A
65 68anti-parallel
Strand 4
A
39 44parallel
Strand 5
A
5 9parallel
Strand 6
A
201 206parallel
Strand 7
A
225 228parallel
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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
119 122first strand
Strand 2
A
125 128anti-parallel
Strand 3
A
179 183anti-parallel
Strand 4
A
169 173anti-parallel
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There are 7 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
79 83first strand
Strand 2
B
73 76anti-parallel
Strand 3
B
65 68anti-parallel
Strand 4
B
39 43parallel
Strand 5
B
5 9parallel
Strand 6
B
201 206parallel
Strand 7
B
225 228parallel
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There are 4 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
119 121first strand
Strand 2
B
126 128anti-parallel
Strand 3
B
179 183anti-parallel
Strand 4
B
169 172anti-parallel
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There are 7 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
79 83first strand
Strand 2
C
73 76anti-parallel
Strand 3
C
65 68anti-parallel
Strand 4
C
39 44parallel
Strand 5
C
6 10parallel
Strand 6
C
202 206parallel
Strand 7
C
225 228parallel
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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
C
119 121first strand
Strand 2
C
126 128anti-parallel
Strand 3
C
179 183anti-parallel
Strand 4
C
169 172anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il