Analysis of interatomic Contacts of Structural Units in PDB entry:
4S3I


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 4S3I entry

There are 2 chains in PDB entry 4S3I (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1LEU 374
B
 MET 1LEU 374
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 24 helices in PDB entry 4S3I. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
6 18Right-handed alpha
Helix 2
2
A
19 21Right-handed 310
Helix 3
3
A
28 30Right-handed 310
Helix 4
4
A
72 81Right-handed alpha
Helix 5
5
A
111 115Right-handed 310
Helix 6
6
A
132 142Right-handed alpha
Helix 7
7
A
143 145Right-handed 310
Helix 8
8
A
152 154Right-handed 310
Helix 9
9
A
201 211Right-handed alpha
Helix 10
10
A
244 248Right-handed 310
Helix 11
11
A
261 272Right-handed alpha
Helix 12
12
A
322 331Right-handed alpha
Helix 13
13
B
6 18Right-handed alpha
Helix 14
14
B
19 21Right-handed 310
Helix 15
15
B
28 30Right-handed 310
Helix 16
16
B
72 81Right-handed alpha
Helix 17
17
B
111 115Right-handed 310
Helix 18
18
B
132 142Right-handed alpha
Helix 19
19
B
143 145Right-handed 310
Helix 20
20
B
152 154Right-handed 310
Helix 21
21
B
201 211Right-handed alpha
Helix 22
22
B
244 248Right-handed 310
Helix 23
23
B
261 272Right-handed alpha
Helix 24
24
B
322 331Right-handed alpha
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There are 8 sheets in PDB entry 4S3I. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

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
61 64first strand
Strand 2
A
2 5anti-parallel
Strand 3
A
87 92anti-parallel
Strand 4
A
95 100anti-parallel
Strand 5
A
103 108anti-parallel
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There are 9 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
66 71first strand
Strand 2
A
32 38anti-parallel
Strand 3
A
41 47anti-parallel
Strand 4
A
51 58anti-parallel
Strand 5
A
231 236anti-parallel
Strand 6
A
223 227anti-parallel
Strand 7
A
215 219anti-parallel
Strand 8
A
125 129anti-parallel
Strand 9
A
188 190anti-parallel
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There are 8 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
194 200first strand
Strand 2
A
156 162anti-parallel
Strand 3
A
167 173anti-parallel
Strand 4
A
177 183anti-parallel
Strand 5
A
366 369anti-parallel
Strand 6
A
348 352anti-parallel
Strand 7
A
336 341anti-parallel
Strand 8
A
255 260anti-parallel
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There are 4 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
301 305first strand
Strand 2
A
286 291anti-parallel
Strand 3
A
277 282anti-parallel
Strand 4
A
316 321anti-parallel
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There are 5 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
61 64first strand
Strand 2
B
2 5anti-parallel
Strand 3
B
87 92anti-parallel
Strand 4
B
95 100anti-parallel
Strand 5
B
103 108anti-parallel
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There are 9 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
66 71first strand
Strand 2
B
32 38anti-parallel
Strand 3
B
41 47anti-parallel
Strand 4
B
51 58anti-parallel
Strand 5
B
231 236anti-parallel
Strand 6
B
223 227anti-parallel
Strand 7
B
215 219anti-parallel
Strand 8
B
125 129anti-parallel
Strand 9
B
189 190anti-parallel
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There are 8 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
194 200first strand
Strand 2
B
156 162anti-parallel
Strand 3
B
167 173anti-parallel
Strand 4
B
177 183anti-parallel
Strand 5
B
366 369anti-parallel
Strand 6
B
348 352anti-parallel
Strand 7
B
336 341anti-parallel
Strand 8
B
255 260anti-parallel
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There are 4 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
301 305first strand
Strand 2
B
286 291anti-parallel
Strand 3
B
277 283anti-parallel
Strand 4
B
316 321anti-parallel
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