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


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 4PIQ entry

There are 2 chains in PDB entry 4PIQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 1LEU 204
B
 GLY 300TYR 310
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 4PIQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA1
A
4 15Right-handed alpha
Helix 2
AA2
A
47 51Right-handed 310
Helix 3
AA3
A
76 85Right-handed alpha
Helix 4
AA4
A
88 100Right-handed alpha
Helix 5
AA5
A
121 136Right-handed alpha
Helix 6
AA6
A
146 150Right-handed 310
Helix 7
AA7
A
156 158Right-handed 310
Helix 8
AA8
A
163 182Right-handed alpha
Helix 9
AA9
A
182 196Right-handed alpha
Helix 10
AB1
A
199 204Right-handed 310
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There are 2 sheets in PDB entry 4PIQ. Click on sheet of interest to get list of strands forming it: AA1, AA2,

There are 6 strands in AA1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
21 25first strand
Strand 2
A
39 44parallel
Strand 3
A
55 61anti-parallel
Strand 4
A
66 70anti-parallel
Strand 5
A
104 110parallel
Strand 6
B
303 309anti-parallel
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There are 2 strands in AA2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
112 113first strand
Strand 2
A
153 154anti-parallel
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