Analysis of interatomic Contacts of Structural Units in PDB entry:
1SN2


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 1SN2 entry

There are 4 chains in PDB entry 1SN2 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 CYS 10GLU 127
B
 CYS 10VAL 125
C
 PRO 11VAL 125
D
 CYS 10SER 123
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 6 helices in PDB entry 1SN2. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
74 82Right-handed alpha
Helix 2
2
B
60 64Right-handed 310
Helix 3
3
B
74 82Right-handed alpha
Helix 4
4
C
74 82Right-handed alpha
Helix 5
5
D
60 64Right-handed 310
Helix 6
6
D
74 83Right-handed alpha
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There are 4 sheets in PDB entry 1SN2. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 8 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
23 24first strand
Strand 2
A
12 18anti-parallel
Strand 3
A
105 112parallel
Strand 4
A
115 121anti-parallel
Strand 5
B
115 123anti-parallel
Strand 6
B
104 112anti-parallel
Strand 7
B
12 18parallel
Strand 8
B
23 24anti-parallel
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There are 8 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
41 48first strand
Strand 2
A
29 35anti-parallel
Strand 3
A
67 73anti-parallel
Strand 4
A
88 97anti-parallel
Strand 5
B
88 97anti-parallel
Strand 6
B
67 73anti-parallel
Strand 7
B
29 35anti-parallel
Strand 8
B
41 48anti-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
C
23 24first strand
Strand 2
C
12 18anti-parallel
Strand 3
C
105 112parallel
Strand 4
C
115 122anti-parallel
Strand 5
D
115 123anti-parallel
Strand 6
D
104 112anti-parallel
Strand 7
D
12 18parallel
Strand 8
D
23 24anti-parallel
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There are 8 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
41 48first strand
Strand 2
C
29 35anti-parallel
Strand 3
C
67 73anti-parallel
Strand 4
C
88 97anti-parallel
Strand 5
D
91 97anti-parallel
Strand 6
D
67 73anti-parallel
Strand 7
D
29 35anti-parallel
Strand 8
D
41 48anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il