Analysis of interatomic Contacts of Structural Units in PDB entry:
2O9A


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 2O9A entry

There are 4 chains in PDB entry 2O9A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY 1SER 182
B
 GLY 1MET 179
C
 GLY 1SER 182
D
 GLY 1ARG 180
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 24 helices in PDB entry 2O9A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
4 23Right-handed alpha
Helix 2
2
A
65 73Right-handed alpha
Helix 3
3
A
76 86Right-handed alpha
Helix 4
4
A
99 114Right-handed alpha
Helix 5
5
A
154 156Right-handed 310
Helix 6
6
A
157 180Right-handed alpha
Helix 7
7
B
4 23Right-handed alpha
Helix 8
8
B
65 73Right-handed alpha
Helix 9
9
B
76 88Right-handed alpha
Helix 10
10
B
99 114Right-handed alpha
Helix 11
11
B
154 156Right-handed 310
Helix 12
12
B
157 179Right-handed alpha
Helix 13
13
C
4 23Right-handed alpha
Helix 14
14
C
65 75Right-handed alpha
Helix 15
15
C
76 87Right-handed alpha
Helix 16
16
C
99 114Right-handed alpha
Helix 17
17
C
154 156Right-handed 310
Helix 18
18
C
157 181Right-handed alpha
Helix 19
19
D
4 23Right-handed alpha
Helix 20
20
D
65 73Right-handed alpha
Helix 21
21
D
76 88Right-handed alpha
Helix 22
22
D
99 114Right-handed alpha
Helix 23
23
D
154 156Right-handed 310
Helix 24
24
D
157 180Right-handed alpha
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There are 6 sheets in PDB entry 2O9A. 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
59 60first strand
Strand 2
A
37 44anti-parallel
Strand 3
A
25 32anti-parallel
Strand 4
A
140 149anti-parallel
Strand 5
A
126 134anti-parallel
Strand 6
A
116 119anti-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
50 52first strand
Strand 2
D
50 52anti-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
B
59 60first strand
Strand 2
B
37 44anti-parallel
Strand 3
B
25 32anti-parallel
Strand 4
B
140 149anti-parallel
Strand 5
B
126 134anti-parallel
Strand 6
B
116 119anti-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
50 52first strand
Strand 2
C
50 52anti-parallel
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There are 6 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
59 61first strand
Strand 2
C
37 44anti-parallel
Strand 3
C
25 31anti-parallel
Strand 4
C
140 149anti-parallel
Strand 5
C
126 134anti-parallel
Strand 6
C
116 119anti-parallel
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There are 6 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
59 60first strand
Strand 2
D
38 44anti-parallel
Strand 3
D
25 31anti-parallel
Strand 4
D
140 149anti-parallel
Strand 5
D
126 134anti-parallel
Strand 6
D
116 119anti-parallel
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