Analysis of interatomic Contacts of Structural Units in PDB entry:
1I3S


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 1I3S entry

There are 3 chains in PDB entry 1I3S (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 12ILE 298
B
 SER 12LYS 299
C
 SER 12LYS 299
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 1I3S. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
33 37Right-handed 310
Helix 2
2
A
61 77Right-handed alpha
Helix 3
3
A
108 114Right-handed alpha
Helix 4
4
A
114 122Right-handed alpha
Helix 5
5
A
126 137Right-handed alpha
Helix 6
6
A
137 142Right-handed alpha
Helix 7
7
A
206 217Right-handed alpha
Helix 8
8
B
32 37Right-handed alpha
Helix 9
9
B
61 77Right-handed alpha
Helix 10
10
B
108 114Right-handed alpha
Helix 11
11
B
114 122Right-handed alpha
Helix 12
12
B
126 137Right-handed alpha
Helix 13
13
B
137 142Right-handed alpha
Helix 14
14
B
206 216Right-handed alpha
Helix 15
15
C
33 37Right-handed 310
Helix 16
16
C
61 77Right-handed alpha
Helix 17
17
C
108 114Right-handed alpha
Helix 18
18
C
114 121Right-handed alpha
Helix 19
19
C
126 137Right-handed alpha
Helix 20
20
C
137 142Right-handed alpha
Helix 21
21
C
206 216Right-handed alpha
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There are 9 sheets in PDB entry 1I3S. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I,

There are 9 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
53 58first strand
Strand 2
A
167 171anti-parallel
Strand 3
A
25 31anti-parallel
Strand 4
A
14 22anti-parallel
Strand 5
A
192 201parallel
Strand 6
A
277 287anti-parallel
Strand 7
A
260 272anti-parallel
Strand 8
A
239 250anti-parallel
Strand 9
A
228 235anti-parallel
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There are 4 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
43 49first strand
Strand 2
A
149 155anti-parallel
Strand 3
A
101 107anti-parallel
Strand 4
A
94 97anti-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
177 180first strand
Strand 2
A
293 296anti-parallel
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There are 9 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
53 58first strand
Strand 2
B
167 171anti-parallel
Strand 3
B
26 31anti-parallel
Strand 4
B
14 20anti-parallel
Strand 5
B
192 201parallel
Strand 6
B
277 287anti-parallel
Strand 7
B
260 272anti-parallel
Strand 8
B
239 250anti-parallel
Strand 9
B
228 235anti-parallel
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There are 4 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
43 49first strand
Strand 2
B
149 155anti-parallel
Strand 3
B
101 107anti-parallel
Strand 4
B
94 97anti-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
177 180first strand
Strand 2
B
293 296anti-parallel
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There are 9 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
53 58first strand
Strand 2
C
167 171anti-parallel
Strand 3
C
26 31anti-parallel
Strand 4
C
14 20anti-parallel
Strand 5
C
192 201parallel
Strand 6
C
277 287anti-parallel
Strand 7
C
259 272anti-parallel
Strand 8
C
239 251anti-parallel
Strand 9
C
228 235anti-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
C
43 49first strand
Strand 2
C
149 155anti-parallel
Strand 3
C
101 107anti-parallel
Strand 4
C
94 97anti-parallel
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There are 2 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
177 180first strand
Strand 2
C
293 296anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il