Analysis of interatomic Contacts of Structural Units in PDB entry:
3C20


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 3C20 entry

There are 2 chains in PDB entry 3C20 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 2LYS 470
B
 THR 2LYS 470
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 32 helices in PDB entry 3C20. 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 32Right-handed alpha
Helix 2
2
A
44 58Right-handed alpha
Helix 3
3
A
61 84Right-handed alpha
Helix 4
4
A
86 115Right-handed alpha
Helix 5
5
A
118 144Right-handed alpha
Helix 6
6
A
152 157Right-handed alpha
Helix 7
7
A
173 184Right-handed alpha
Helix 8
8
A
208 221Right-handed alpha
Helix 9
9
A
253 261Right-handed alpha
Helix 10
10
A
269 280Right-handed alpha
Helix 11
11
A
326 329Right-handed 310
Helix 12
12
A
333 345Right-handed alpha
Helix 13
13
A
369 381Right-handed alpha
Helix 14
14
A
412 415Right-handed 310
Helix 15
15
A
419 431Right-handed alpha
Helix 16
16
A
455 468Right-handed alpha
Helix 17
17
B
14 32Right-handed alpha
Helix 18
18
B
44 58Right-handed alpha
Helix 19
19
B
61 84Right-handed alpha
Helix 20
20
B
86 115Right-handed alpha
Helix 21
21
B
118 144Right-handed alpha
Helix 22
22
B
152 157Right-handed alpha
Helix 23
23
B
173 184Right-handed alpha
Helix 24
24
B
208 221Right-handed alpha
Helix 25
25
B
254 261Right-handed alpha
Helix 26
26
B
269 280Right-handed alpha
Helix 27
27
B
325 329Right-handed 310
Helix 28
28
B
333 345Right-handed alpha
Helix 29
29
B
369 381Right-handed alpha
Helix 30
30
B
412 415Right-handed 310
Helix 31
31
B
419 431Right-handed alpha
Helix 32
32
B
455 468Right-handed alpha
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There are 5 sheets in PDB entry 3C20. Click on sheet of interest to get list of strands forming it: A, B, C, D, E,

There are 8 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
150 151first strand
Strand 2
A
189 191parallel
Strand 3
A
35 39parallel
Strand 4
A
3 7parallel
Strand 5
A
225 230parallel
Strand 6
A
283 287parallel
Strand 7
A
296 298anti-parallel
Strand 8
A
251 252parallel
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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
169 172first strand
Strand 2
A
158 160anti-parallel
Strand 3
A
194 197parallel
Strand 4
A
202 204anti-parallel
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There are 13 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
311 324first strand
Strand 2
A
360 366anti-parallel
Strand 3
A
351 354anti-parallel
Strand 4
B
351 354anti-parallel
Strand 5
B
361 366anti-parallel
Strand 6
B
311 324anti-parallel
Strand 7
B
397 410anti-parallel
Strand 8
B
446 452anti-parallel
Strand 9
B
437 440anti-parallel
Strand 10
A
437 440anti-parallel
Strand 11
A
446 452anti-parallel
Strand 12
A
397 410anti-parallel
Strand 13
A
311 324anti-parallel
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There are 8 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
150 151first strand
Strand 2
B
189 191parallel
Strand 3
B
35 39parallel
Strand 4
B
3 7parallel
Strand 5
B
225 230parallel
Strand 6
B
283 287parallel
Strand 7
B
296 299anti-parallel
Strand 8
B
251 253parallel
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There are 4 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
169 172first strand
Strand 2
B
158 160anti-parallel
Strand 3
B
194 197parallel
Strand 4
B
202 204anti-parallel
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