Analysis of interatomic Contacts of Structural Units in PDB entry:
1S4N


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 1S4N entry

There are 2 chains in PDB entry 1S4N (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 LYS 104GLU 442
B
 THR 103GLU 442
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 45 helices in PDB entry 1S4N. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
105 111Right-handed alpha
Helix 2
2
A
112 114Right-handed 310
Helix 3
3
A
130 132Right-handed 310
Helix 4
4
A
133 148Right-handed alpha
Helix 5
5
A
165 176Right-handed alpha
Helix 6
6
A
186 190Right-handed 310
Helix 7
7
A
197 209Right-handed alpha
Helix 8
8
A
217 230Right-handed alpha
Helix 9
9
A
231 238Right-handed 310
Helix 10
10
A
259 267Right-handed alpha
Helix 11
11
A
280 284Right-handed 310
Helix 12
12
A
286 298Right-handed alpha
Helix 13
13
A
299 302Right-handed 310
Helix 14
14
A
307 312Right-handed alpha
Helix 15
15
A
333 337Right-handed alpha
Helix 16
16
A
338 352Right-handed alpha
Helix 17
17
A
352 357Right-handed alpha
Helix 18
18
A
360 373Right-handed alpha
Helix 19
19
A
374 376Right-handed 310
Helix 20
20
A
397 404Right-handed alpha
Helix 21
21
A
409 413Right-handed 310
Helix 22
22
A
421 430Right-handed alpha
Helix 23
23
A
436 442Right-handed 310
Helix 24
24
B
105 114Right-handed 310
Helix 25
25
B
130 132Right-handed 310
Helix 26
26
B
133 148Right-handed alpha
Helix 27
27
B
165 176Right-handed alpha
Helix 28
28
B
186 190Right-handed 310
Helix 29
29
B
197 209Right-handed alpha
Helix 30
30
B
217 230Right-handed alpha
Helix 31
31
B
231 238Right-handed 310
Helix 32
32
B
259 267Right-handed alpha
Helix 33
33
B
280 284Right-handed 310
Helix 34
34
B
286 298Right-handed alpha
Helix 35
35
B
299 302Right-handed 310
Helix 36
36
B
307 312Right-handed alpha
Helix 37
37
B
333 337Right-handed alpha
Helix 38
38
B
338 352Right-handed alpha
Helix 39
39
B
352 357Right-handed alpha
Helix 40
40
B
360 373Right-handed alpha
Helix 41
41
B
374 376Right-handed 310
Helix 42
42
B
397 404Right-handed alpha
Helix 43
43
B
409 413Right-handed 310
Helix 44
44
B
421 430Right-handed alpha
Helix 45
45
B
436 442Right-handed 310
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There are 6 sheets in PDB entry 1S4N. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

There are 7 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
180 184first strand
Strand 2
A
156 160parallel
Strand 3
A
123 128parallel
Strand 4
A
242 245parallel
Strand 5
A
329 332anti-parallel
Strand 6
A
271 273anti-parallel
Strand 7
A
378 380parallel
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There are 3 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
251 252first strand
Strand 2
A
386 388anti-parallel
Strand 3
A
391 393anti-parallel
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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
A
276 278first strand
Strand 2
A
322 324anti-parallel
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There are 7 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
180 184first strand
Strand 2
B
156 160parallel
Strand 3
B
123 128parallel
Strand 4
B
242 245parallel
Strand 5
B
329 332anti-parallel
Strand 6
B
271 273anti-parallel
Strand 7
B
378 380parallel
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There are 2 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
276 278first strand
Strand 2
B
322 324anti-parallel
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There are 2 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
386 388first strand
Strand 2
B
391 393anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il