Analysis of interatomic Contacts of Structural Units in PDB entry:
3OS4


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 3OS4 entry

There are 2 chains in PDB entry 3OS4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLN 3PRO 395
B
 ASP 4ALA 368
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 40 helices in PDB entry 3OS4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
16 30Right-handed alpha
Helix 2
2
A
47 49Right-handed 310
Helix 3
3
A
50 62Right-handed alpha
Helix 4
4
A
67 76Right-handed alpha
Helix 5
5
A
81 91Right-handed alpha
Helix 6
6
A
94 96Right-handed 310
Helix 7
7
A
115 119Right-handed alpha
Helix 8
8
A
121 138Right-handed alpha
Helix 9
9
A
142 161Right-handed alpha
Helix 10
10
A
181 196Right-handed alpha
Helix 11
11
A
204 212Right-handed alpha
Helix 12
12
A
220 228Right-handed alpha
Helix 13
13
A
233 235Right-handed 310
Helix 14
14
A
236 249Right-handed alpha
Helix 15
15
A
262 270Right-handed alpha
Helix 16
16
A
271 278Right-handed alpha
Helix 17
17
A
287 302Right-handed alpha
Helix 18
18
A
305 308Right-handed 310
Helix 19
19
A
318 330Right-handed alpha
Helix 20
20
A
340 345Right-handed alpha
Helix 21
21
A
381 392Right-handed alpha
Helix 22
22
B
16 30Right-handed alpha
Helix 23
23
B
47 49Right-handed 310
Helix 24
24
B
50 62Right-handed alpha
Helix 25
25
B
67 76Right-handed alpha
Helix 26
26
B
81 90Right-handed alpha
Helix 27
27
B
94 96Right-handed 310
Helix 28
28
B
115 119Right-handed alpha
Helix 29
29
B
121 138Right-handed alpha
Helix 30
30
B
142 162Right-handed alpha
Helix 31
31
B
181 196Right-handed alpha
Helix 32
32
B
204 212Right-handed alpha
Helix 33
33
B
220 231Right-handed alpha
Helix 34
34
B
236 249Right-handed alpha
Helix 35
35
B
262 270Right-handed alpha
Helix 36
36
B
271 278Right-handed alpha
Helix 37
37
B
287 303Right-handed alpha
Helix 38
38
B
305 308Right-handed 310
Helix 39
39
B
318 330Right-handed alpha
Helix 40
40
B
340 345Right-handed alpha
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There are 4 sheets in PDB entry 3OS4. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 5 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
98 103first strand
Strand 2
A
106 114anti-parallel
Strand 3
A
34 41anti-parallel
Strand 4
A
355 362anti-parallel
Strand 5
A
365 366anti-parallel
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There are 6 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
199 202first strand
Strand 2
A
171 173parallel
Strand 3
A
334 339parallel
Strand 4
A
310 313parallel
Strand 5
A
280 283parallel
Strand 6
A
255 257parallel
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There are 5 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
98 103first strand
Strand 2
B
106 114anti-parallel
Strand 3
B
34 41anti-parallel
Strand 4
B
355 362anti-parallel
Strand 5
B
365 366anti-parallel
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There are 6 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
199 202first strand
Strand 2
B
171 173parallel
Strand 3
B
334 339parallel
Strand 4
B
310 313parallel
Strand 5
B
280 283parallel
Strand 6
B
255 257parallel
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