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


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 1ISA entry

There are 2 chains in PDB entry 1ISA (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 1ALA 192
B
 SER 1ALA 192
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 1ISA. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
HA1
A
20 42Right-handed alpha
Helix 2
HA2
A
52 58Right-handed alpha
Helix 3
HA3
A
61 78Right-handed alpha
Helix 4
HA4
A
90 100Right-handed alpha
Helix 5
HA5
A
103 116Right-handed alpha
Helix 6
HA6
A
144 146Right-handed 310
Helix 7
HA7
A
170 178Right-handed alpha
Helix 8
HA8
A
183 190Right-handed alpha
Helix 9
HB1
B
20 42Right-handed alpha
Helix 10
HB2
B
52 58Right-handed alpha
Helix 11
HB3
B
61 78Right-handed alpha
Helix 12
HB4
B
90 100Right-handed alpha
Helix 13
HB5
B
103 116Right-handed alpha
Helix 14
HB6
B
144 146Right-handed 310
Helix 15
HB7
B
170 177Right-handed alpha
Helix 16
HB8
B
183 191Right-handed alpha
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There are 2 sheets in PDB entry 1ISA. Click on sheet of interest to get list of strands forming it: B1A, B1B,

There are 3 strands in B1A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
133 139first strand
Strand 2
A
121 127anti-parallel
Strand 3
A
150 156anti-parallel
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There are 3 strands in B1B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
133 139first strand
Strand 2
B
121 127anti-parallel
Strand 3
B
150 156anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il