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


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 1SIR entry

There is 1 chain in PDB entry 1SIR (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLU 3ALA 392
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 16 helices in PDB entry 1SIR. 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 16Right-handed 310
Helix 2
2
A
17 34Right-handed alpha
Helix 3
3
A
35 45Right-handed alpha
Helix 4
4
A
50 60Right-handed alpha
Helix 5
5
A
75 88Right-handed alpha
Helix 6
6
A
90 103Right-handed alpha
Helix 7
7
A
104 112Right-handed alpha
Helix 8
8
A
113 126Right-handed alpha
Helix 9
9
A
143 147Right-handed 310
Helix 10
10
A
172 175Right-handed 310
Helix 11
11
A
239 275Right-handed alpha
Helix 12
12
A
285 315Right-handed alpha
Helix 13
13
A
319 345Right-handed alpha
Helix 14
14
A
346 354Right-handed 310
Helix 15
15
A
355 367Right-handed alpha
Helix 16
16
A
374 386Right-handed alpha
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There are 4 sheets in PDB entry 1SIR. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 2 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
67 68first strand
Strand 2
A
71 72anti-parallel
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There are 6 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
131 134first strand
Strand 2
A
177 184parallel
Strand 3
A
150 154parallel
Strand 4
A
159 170anti-parallel
Strand 5
A
217 228anti-parallel
Strand 6
A
201 202anti-parallel
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There are 4 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
131 134first strand
Strand 2
A
177 184parallel
Strand 3
A
189 195anti-parallel
Strand 4
A
232 233anti-parallel
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There are 2 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
276 277first strand
Strand 2
A
280 281anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il