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


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 1KEQ entry

There are 2 chains in PDB entry 1KEQ (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY 25LEU 262
B
 GLY 25LEU 262
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 14 helices in PDB entry 1KEQ. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
34 36Right-handed 310
Helix 2
2
A
52 54Right-handed 310
Helix 3
3
A
130 135Right-handed alpha
Helix 4
4
A
154 162Right-handed alpha
Helix 5
5
A
163 167Right-handed 310
Helix 6
6
A
180 185Right-handed 310
Helix 7
7
A
219 227Right-handed alpha
Helix 8
8
B
34 36Right-handed 310
Helix 9
9
B
52 54Right-handed 310
Helix 10
10
B
130 135Right-handed alpha
Helix 11
11
B
154 162Right-handed alpha
Helix 12
12
B
163 168Right-handed 310
Helix 13
13
B
180 185Right-handed 310
Helix 14
14
B
219 227Right-handed alpha
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There are 4 sheets in PDB entry 1KEQ. Click on sheet of interest to get list of strands forming it: A1, A2, B1, B2,

There are 2 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
32 33first strand
Strand 2
A
108 109parallel
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There are 16 strands in A2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
173 175first strand
Strand 2
A
56 61anti-parallel
Strand 3
A
66 70anti-parallel
Strand 4
A
88 97anti-parallel
Strand 5
A
78 82anti-parallel
Strand 6
A
45 50anti-parallel
Strand 7
A
78 82anti-parallel
Strand 8
A
88 97anti-parallel
Strand 9
A
116 124anti-parallel
Strand 10
A
141 150anti-parallel
Strand 11
A
216 218parallel
Strand 12
A
141 150parallel
Strand 13
A
207 212parallel
Strand 14
A
191 196anti-parallel
Strand 15
A
256 258anti-parallel
Strand 16
A
38 40parallel
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There are 2 strands in B1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
32 33first strand
Strand 2
B
108 109parallel
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There are 16 strands in B2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
173 175first strand
Strand 2
B
56 61anti-parallel
Strand 3
B
66 70anti-parallel
Strand 4
B
88 97anti-parallel
Strand 5
B
78 82anti-parallel
Strand 6
B
45 50anti-parallel
Strand 7
B
78 82anti-parallel
Strand 8
B
88 97anti-parallel
Strand 9
B
116 124anti-parallel
Strand 10
B
141 150anti-parallel
Strand 11
B
216 218parallel
Strand 12
B
141 150parallel
Strand 13
B
207 212parallel
Strand 14
B
191 196anti-parallel
Strand 15
B
256 258anti-parallel
Strand 16
B
38 40parallel
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