Analysis of interatomic Contacts of Structural Units in PDB entry:
2I81


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 2I81 entry

There are 5 chains in PDB entry 2I81 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PRO 2THR 194
B
 THR 3LEU 195
C
 PRO 2THR 194
D
 THR 3TYR 166
E
 PRO 2ASP 168
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 36 helices in PDB entry 2I81. 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 32Right-handed 310
Helix 2
2
A
48 60Right-handed alpha
Helix 3
3
A
60 67Right-handed alpha
Helix 4
4
A
78 87Right-handed alpha
Helix 5
5
A
89 93Right-handed 310
Helix 6
6
A
108 114Right-handed alpha
Helix 7
7
A
149 167Right-handed alpha
Helix 8
8
A
187 192Right-handed alpha
Helix 9
9
B
29 32Right-handed 310
Helix 10
10
B
48 60Right-handed alpha
Helix 11
11
B
60 67Right-handed alpha
Helix 12
12
B
78 87Right-handed alpha
Helix 13
13
B
89 93Right-handed 310
Helix 14
14
B
108 114Right-handed alpha
Helix 15
15
B
149 167Right-handed alpha
Helix 16
16
B
184 193Right-handed alpha
Helix 17
17
C
29 32Right-handed 310
Helix 18
18
C
48 60Right-handed alpha
Helix 19
19
C
60 67Right-handed alpha
Helix 20
20
C
78 87Right-handed alpha
Helix 21
21
C
89 93Right-handed 310
Helix 22
22
C
108 114Right-handed alpha
Helix 23
23
C
149 167Right-handed alpha
Helix 24
24
C
187 192Right-handed alpha
Helix 25
25
D
49 60Right-handed alpha
Helix 26
26
D
60 67Right-handed alpha
Helix 27
27
D
78 88Right-handed alpha
Helix 28
28
D
89 93Right-handed 310
Helix 29
29
D
108 114Right-handed alpha
Helix 30
30
D
149 164Right-handed alpha
Helix 31
31
E
29 32Right-handed 310
Helix 32
32
E
49 60Right-handed alpha
Helix 33
33
E
60 67Right-handed alpha
Helix 34
34
E
78 88Right-handed alpha
Helix 35
35
E
108 114Right-handed alpha
Helix 36
36
E
149 158Right-handed alpha
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There are 8 sheets in PDB entry 2I81. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

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
23 27first strand
Strand 2
A
13 17anti-parallel
Strand 3
A
101 104anti-parallel
Strand 4
A
69 75parallel
Strand 5
A
36 41parallel
Strand 6
A
125 130anti-parallel
Strand 7
A
136 142anti-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
117 118first strand
Strand 2
A
122 123anti-parallel
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There are 14 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
23 27first strand
Strand 2
B
13 17anti-parallel
Strand 3
B
101 104anti-parallel
Strand 4
B
69 75parallel
Strand 5
B
36 41parallel
Strand 6
B
125 130anti-parallel
Strand 7
B
136 142anti-parallel
Strand 8
C
136 142anti-parallel
Strand 9
C
125 130anti-parallel
Strand 10
C
36 41anti-parallel
Strand 11
C
69 75parallel
Strand 12
C
101 104parallel
Strand 13
C
13 17anti-parallel
Strand 14
C
23 27anti-parallel
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There are 2 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
117 118first strand
Strand 2
B
122 123anti-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
C
117 118first strand
Strand 2
C
122 123anti-parallel
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There are 14 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
23 27first strand
Strand 2
D
13 17anti-parallel
Strand 3
D
101 104anti-parallel
Strand 4
D
69 75parallel
Strand 5
D
36 41parallel
Strand 6
D
125 130anti-parallel
Strand 7
D
136 142anti-parallel
Strand 8
E
136 142anti-parallel
Strand 9
E
125 130anti-parallel
Strand 10
E
36 41anti-parallel
Strand 11
E
69 75parallel
Strand 12
E
101 104parallel
Strand 13
E
13 17anti-parallel
Strand 14
E
23 27anti-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
D
117 118first strand
Strand 2
D
122 123anti-parallel
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There are 2 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
117 118first strand
Strand 2
E
122 123anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il