Analysis of interatomic Contacts of Structural Units in PDB entry:
4PSI


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 4PSI entry


Note, this PDB entry contains modified residue(s) PHOSPHOSERINE (SEP) . This residue is treated as heterogroup (ligand) both in the PDB entry and in LPC/CSU analysis.

There are 6 chains in PDB entry 4PSI (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 37ILE 174
B
 ALA 37ILE 174
D
 ALA 26ASP 28
D
 ASP 30TYR 36
E
 LEU 27ASP 28
E
 ASP 30TYR 36
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 4 helices in PDB entry 4PSI. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
126 134Right-handed alpha
Helix 2
2
A
135 155Right-handed alpha
Helix 3
3
B
126 134Right-handed alpha
Helix 4
4
B
135 155Right-handed alpha
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There are 4 sheets in PDB entry 4PSI. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 4 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
40 43first strand
Strand 2
A
98 103parallel
Strand 3
A
116 125anti-parallel
Strand 4
A
107 110anti-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
40 43first strand
Strand 2
A
98 103parallel
Strand 3
A
116 125anti-parallel
Strand 4
A
64 72parallel
Strand 5
A
52 59anti-parallel
Strand 6
A
163 165anti-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
B
40 43first strand
Strand 2
B
98 103parallel
Strand 3
B
116 125anti-parallel
Strand 4
B
107 110anti-parallel
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There are 6 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
40 43first strand
Strand 2
B
98 103parallel
Strand 3
B
116 125anti-parallel
Strand 4
B
64 72parallel
Strand 5
B
52 59anti-parallel
Strand 6
B
163 165anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il