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


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 3CAS entry

There are 2 chains in PDB entry 3CAS (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ASP 2TYR 326
B
 ASP 2TYR 326
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 3CAS. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
35 48Right-handed alpha
Helix 2
2
A
55 59Right-handed 310
Helix 3
3
A
60 74Right-handed alpha
Helix 4
4
A
78 82Right-handed 310
Helix 5
5
A
89 93Right-handed 310
Helix 6
6
A
94 96Right-handed 310
Helix 7
7
A
97 110Right-handed alpha
Helix 8
8
A
146 160Right-handed alpha
Helix 9
9
A
172 181Right-handed alpha
Helix 10
10
A
202 212Right-handed alpha
Helix 11
11
A
237 240Right-handed 310
Helix 12
12
A
241 251Right-handed alpha
Helix 13
13
A
254 266Right-handed alpha
Helix 14
14
A
276 285Right-handed alpha
Helix 15
15
A
292 301Right-handed alpha
Helix 16
16
A
311 315Right-handed 310
Helix 17
17
B
35 48Right-handed alpha
Helix 18
18
B
55 59Right-handed 310
Helix 19
19
B
60 75Right-handed alpha
Helix 20
20
B
78 82Right-handed 310
Helix 21
21
B
89 93Right-handed 310
Helix 22
22
B
94 96Right-handed 310
Helix 23
23
B
97 110Right-handed alpha
Helix 24
24
B
146 160Right-handed alpha
Helix 25
25
B
172 181Right-handed alpha
Helix 26
26
B
202 212Right-handed alpha
Helix 27
27
B
237 240Right-handed 310
Helix 28
28
B
241 252Right-handed alpha
Helix 29
29
B
254 266Right-handed alpha
Helix 30
30
B
276 283Right-handed alpha
Helix 31
31
B
292 301Right-handed alpha
Helix 32
32
B
311 315Right-handed 310
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There are 4 sheets in PDB entry 3CAS. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 2 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
9 11first strand
Strand 2
A
17 19anti-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
A
23 24first strand
Strand 2
A
51 53parallel
Strand 3
A
83 88parallel
Strand 4
A
114 119parallel
Strand 5
A
163 169parallel
Strand 6
A
191 195parallel
Strand 7
A
215 219parallel
Strand 8
A
269 270parallel
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There are 2 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
9 11first strand
Strand 2
B
17 19anti-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
23 24first strand
Strand 2
B
51 53parallel
Strand 3
B
83 88parallel
Strand 4
B
114 119parallel
Strand 5
B
163 169parallel
Strand 6
B
191 195parallel
Strand 7
B
215 219parallel
Strand 8
B
269 270parallel
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