Analysis of interatomic Contacts of Structural Units in PDB entry:
2R2A


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 2R2A entry

There are 2 chains in PDB entry 2R2A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MSE 1SER 191
B
 ALA 0GLU 190
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 23 helices in PDB entry 2R2A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
14 26Right-handed alpha
Helix 2
2
A
27 30Right-handed 310
Helix 3
3
A
73 78Right-handed alpha
Helix 4
4
A
79 84Right-handed 310
Helix 5
5
A
92 96Right-handed 310
Helix 6
6
A
107 112Right-handed alpha
Helix 7
7
A
113 116Right-handed 310
Helix 8
8
A
129 133Right-handed 310
Helix 9
9
A
134 139Right-handed alpha
Helix 10
10
A
170 174Right-handed 310
Helix 11
11
A
184 188Right-handed 310
Helix 12
12
B
14 26Right-handed alpha
Helix 13
13
B
27 30Right-handed 310
Helix 14
14
B
70 72Right-handed 310
Helix 15
15
B
73 78Right-handed alpha
Helix 16
16
B
79 84Right-handed 310
Helix 17
17
B
92 96Right-handed 310
Helix 18
18
B
107 112Right-handed alpha
Helix 19
19
B
113 119Right-handed 310
Helix 20
20
B
129 133Right-handed 310
Helix 21
21
B
134 140Right-handed alpha
Helix 22
22
B
170 174Right-handed 310
Helix 23
23
B
184 189Right-handed 310
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There are 2 sheets in PDB entry 2R2A. Click on sheet of interest to get list of strands forming it: A, B,

There are 9 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
69 70first strand
Strand 2
A
52 55parallel
Strand 3
A
40 42parallel
Strand 4
A
87 90parallel
Strand 5
A
122 127parallel
Strand 6
A
4 8parallel
Strand 7
A
141 149parallel
Strand 8
A
155 160anti-parallel
Strand 9
A
175 178anti-parallel
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There are 8 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
52 53first strand
Strand 2
B
40 42parallel
Strand 3
B
87 90parallel
Strand 4
B
122 127parallel
Strand 5
B
4 8parallel
Strand 6
B
141 149parallel
Strand 7
B
155 160anti-parallel
Strand 8
B
175 178anti-parallel
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