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


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 3SIR entry

There are 4 chains in PDB entry 3SIR (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 1SER 256
B
 ALA 10SER 256
C
 ALA 10SER 256
D
 ALA 10GLN 259
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 3SIR. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
44 56Right-handed alpha
Helix 2
2
A
67 80Right-handed alpha
Helix 3
3
A
106 114Right-handed alpha
Helix 4
4
A
115 119Right-handed 310
Helix 5
5
A
123 127Right-handed 310
Helix 6
6
A
192 206Right-handed alpha
Helix 7
7
A
210 224Right-handed alpha
Helix 8
8
B
43 56Right-handed alpha
Helix 9
9
B
67 80Right-handed alpha
Helix 10
10
B
192 206Right-handed alpha
Helix 11
11
B
210 225Right-handed alpha
Helix 12
12
C
43 56Right-handed alpha
Helix 13
13
C
67 79Right-handed alpha
Helix 14
14
C
123 127Right-handed 310
Helix 15
15
C
192 206Right-handed alpha
Helix 16
16
C
210 224Right-handed alpha
Helix 17
17
D
44 56Right-handed alpha
Helix 18
18
D
69 80Right-handed alpha
Helix 19
19
D
123 127Right-handed 310
Helix 20
20
D
192 206Right-handed alpha
Helix 21
21
D
210 224Right-handed alpha
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There are 3 sheets in PDB entry 3SIR. Click on sheet of interest to get list of strands forming it: A, B, C,

There are 12 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
59 65first strand
Strand 2
A
19 28parallel
Strand 3
A
86 95parallel
Strand 4
A
131 138parallel
Strand 5
A
172 179parallel
Strand 6
A
244 247anti-parallel
Strand 7
B
244 247anti-parallel
Strand 8
B
172 178anti-parallel
Strand 9
B
131 137parallel
Strand 10
B
86 94parallel
Strand 11
B
19 26parallel
Strand 12
B
59 63parallel
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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
143 144first strand
Strand 2
A
164 165parallel
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There are 12 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
59 64first strand
Strand 2
C
22 27parallel
Strand 3
C
89 94parallel
Strand 4
C
131 138parallel
Strand 5
C
172 179parallel
Strand 6
C
244 247anti-parallel
Strand 7
D
245 247anti-parallel
Strand 8
D
172 178anti-parallel
Strand 9
D
131 137parallel
Strand 10
D
89 94parallel
Strand 11
D
22 27parallel
Strand 12
D
59 64parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il