Analysis of interatomic Contacts of Structural Units in PDB entry:
1S4M


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 1S4M entry

There are 2 chains in PDB entry 1S4M (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1LYS 288
B
 MET 301PHE 589
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 21 helices in PDB entry 1S4M. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
12 30Right-handed alpha
Helix 2
2
A
41 46Right-handed 310
Helix 3
3
A
55 64Right-handed alpha
Helix 4
4
A
73 78Right-handed alpha
Helix 5
5
A
81 90Right-handed alpha
Helix 6
6
A
105 109Right-handed 310
Helix 7
7
A
111 118Right-handed alpha
Helix 8
8
A
136 146Right-handed alpha
Helix 9
9
A
152 157Right-handed alpha
Helix 10
10
A
205 207Right-handed 310
Helix 11
11
A
264 287Right-handed alpha
Helix 12
12
B
312 330Right-handed alpha
Helix 13
13
B
341 346Right-handed 310
Helix 14
14
B
355 364Right-handed alpha
Helix 15
15
B
373 380Right-handed alpha
Helix 16
16
B
381 390Right-handed alpha
Helix 17
17
B
405 409Right-handed 310
Helix 18
18
B
411 418Right-handed alpha
Helix 19
19
B
436 446Right-handed alpha
Helix 20
20
B
452 457Right-handed alpha
Helix 21
21
B
562 587Right-handed alpha
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There are 6 sheets in PDB entry 1S4M. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

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
69 72first strand
Strand 2
A
33 38parallel
Strand 3
A
2 6parallel
Strand 4
A
95 99parallel
Strand 5
A
121 125parallel
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There are 2 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
129 130first strand
Strand 2
A
133 134anti-parallel
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There are 7 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
161 166first strand
Strand 2
A
181 184anti-parallel
Strand 3
A
228 234anti-parallel
Strand 4
A
209 218anti-parallel
Strand 5
A
196 203anti-parallel
Strand 6
A
245 255anti-parallel
Strand 7
A
161 166anti-parallel
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There are 5 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
369 372first strand
Strand 2
B
333 338parallel
Strand 3
B
302 306parallel
Strand 4
B
395 399parallel
Strand 5
B
421 425parallel
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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
429 430first strand
Strand 2
B
433 434anti-parallel
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There are 7 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
461 466first strand
Strand 2
B
481 484anti-parallel
Strand 3
B
529 534anti-parallel
Strand 4
B
509 517anti-parallel
Strand 5
B
496 503anti-parallel
Strand 6
B
545 555anti-parallel
Strand 7
B
461 466anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il