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


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 1PSQ entry

There are 2 chains in PDB entry 1PSQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MSE 1LEU 163
B
 MSE 1LEU 163
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 10 helices in PDB entry 1PSQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
38 41Right-handed 310
Helix 2
2
A
55 69Right-handed alpha
Helix 3
3
A
84 96Right-handed alpha
Helix 4
4
A
109 115Right-handed alpha
Helix 5
5
A
152 163Right-handed alpha
Helix 6
6
B
36 41Right-handed 310
Helix 7
7
B
55 69Right-handed alpha
Helix 8
8
B
84 96Right-handed alpha
Helix 9
9
B
109 115Right-handed alpha
Helix 10
10
B
152 163Right-handed alpha
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There are 4 sheets in PDB entry 1PSQ. 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
26 28first strand
Strand 2
A
34 36anti-parallel
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There are 5 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
101 104first strand
Strand 2
A
75 81parallel
Strand 3
A
44 49parallel
Strand 4
A
128 132anti-parallel
Strand 5
A
138 143anti-parallel
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There are 2 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
2 4first strand
Strand 2
B
7 9anti-parallel
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There are 7 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
34 35first strand
Strand 2
B
27 29anti-parallel
Strand 3
B
101 104anti-parallel
Strand 4
B
75 81parallel
Strand 5
B
44 49parallel
Strand 6
B
128 132anti-parallel
Strand 7
B
138 143anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il