Analysis of interatomic Contacts of Structural Units in PDB entry:
2B20


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 2B20 entry

There is 1 chain in PDB entry 2B20 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 3HIS 397
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 17 helices in PDB entry 2B20. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
8 14Right-handed alpha
Helix 2
2
A
56 60Right-handed 310
Helix 3
3
A
108 120Right-handed alpha
Helix 4
4
A
121 123Right-handed 310
Helix 5
5
A
201 208Right-handed alpha
Helix 6
6
A
211 221Right-handed alpha
Helix 7
7
A
236 244Right-handed alpha
Helix 8
8
A
247 257Right-handed alpha
Helix 9
9
A
257 266Right-handed alpha
Helix 10
10
A
271 274Right-handed 310
Helix 11
11
A
281 294Right-handed alpha
Helix 12
12
A
321 327Right-handed alpha
Helix 13
13
A
346 358Right-handed alpha
Helix 14
14
A
359 360Right-handed 310
Helix 15
15
A
361 364Right-handed 310
Helix 16
16
A
376 392Right-handed alpha
Helix 17
17
A
393 396Right-handed 310
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There are 3 sheets in PDB entry 2B20. Click on sheet of interest to get list of strands forming it: A, B, C,

There are 4 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
19 22first strand
Strand 2
A
27 35anti-parallel
Strand 3
A
76 84anti-parallel
Strand 4
A
69 70anti-parallel
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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
48 53first strand
Strand 2
A
88 96anti-parallel
Strand 3
A
140 145anti-parallel
Strand 4
A
132 134anti-parallel
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There are 8 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
166 172first strand
Strand 2
A
177 185anti-parallel
Strand 3
A
228 232anti-parallel
Strand 4
A
196 200parallel
Strand 5
A
276 280parallel
Strand 6
A
300 304parallel
Strand 7
A
336 342parallel
Strand 8
A
366 371parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il