Analysis of interatomic Contacts of Structural Units in PDB entry:
1Q4A


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 1Q4A entry

There are 2 chains in PDB entry 1Q4A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 2PHE 64
A
 VAL 68THR 230
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 7 helices in PDB entry 1Q4A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
4 9Right-handed 310
Helix 2
2
A
37 39Right-handed 310
Helix 3
3
A
56 61Right-handed 310
Helix 4
4
A
68 72Right-handed 310
Helix 5
5
A
75 81Right-handed 310
Helix 6
6
A
82 87Right-handed alpha
Helix 7
7
A
156 159Right-handed 310
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There is 1 sheet ( A) in PDB entry 1Q4A.

There are 12 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
12 22first strand
Strand 2
A
25 36anti-parallel
Strand 3
A
41 48anti-parallel
Strand 4
A
217 227anti-parallel
Strand 5
A
199 208anti-parallel
Strand 6
A
149 155anti-parallel
Strand 7
A
160 170anti-parallel
Strand 8
A
176 187anti-parallel
Strand 9
A
92 100anti-parallel
Strand 10
A
105 115anti-parallel
Strand 11
A
118 128anti-parallel
Strand 12
A
12 22parallel
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