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


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 1CQK entry

There are 2 chains in PDB entry 1CQK (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PRO 4HIS 104
B
 PRO 204HIS 304
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 6 helices in PDB entry 1CQK. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
15 19Right-handed 310
Helix 2
2
A
75 80Right-handed alpha
Helix 3
3
A
93 95Right-handed 310
Helix 4
4
B
215 219Right-handed 310
Helix 5
5
B
275 280Right-handed alpha
Helix 6
6
B
293 295Right-handed 310
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There are 6 sheets in PDB entry 1CQK. Click on sheet of interest to get list of strands forming it: A, A1, B, C, C1, 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
8 12first strand
Strand 2
A
23 33anti-parallel
Strand 3
A
65 74anti-parallel
Strand 4
A
52 54anti-parallel
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There are 4 strands in A1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
8 12first strand
Strand 2
A
23 33anti-parallel
Strand 3
A
65 74anti-parallel
Strand 4
A
58 59anti-parallel
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There are 4 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
47 48first strand
Strand 2
A
39 44anti-parallel
Strand 3
A
84 89anti-parallel
Strand 4
A
97 102anti-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
208 212first strand
Strand 2
B
223 233anti-parallel
Strand 3
B
265 274anti-parallel
Strand 4
B
252 254anti-parallel
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There are 4 strands in C1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
208 212first strand
Strand 2
B
223 233anti-parallel
Strand 3
B
265 274anti-parallel
Strand 4
B
258 259anti-parallel
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There are 4 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
247 248first strand
Strand 2
B
239 244anti-parallel
Strand 3
B
283 289anti-parallel
Strand 4
B
297 303anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il