Analysis of interatomic Contacts of Structural Units in PDB entry:
3QK3


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 3QK3 entry

There are 3 chains in PDB entry 3QK3 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 23ASP 199
B
 SER 23ARG 198
C
 SER 23ARG 198
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 3QK3. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
31 35Right-handed 310
Helix 2
2
A
71 75Right-handed 310
Helix 3
3
A
88 93Right-handed alpha
Helix 4
4
A
138 143Right-handed 310
Helix 5
5
A
180 185Right-handed 310
Helix 6
6
B
31 35Right-handed 310
Helix 7
7
B
88 93Right-handed alpha
Helix 8
8
B
138 143Right-handed 310
Helix 9
9
B
180 185Right-handed 310
Helix 10
10
C
31 35Right-handed 310
Helix 11
11
C
47 51Right-handed 310
Helix 12
12
C
88 93Right-handed alpha
Helix 13
13
C
138 143Right-handed 310
Helix 14
14
C
180 185Right-handed 310
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There are 12 sheets in PDB entry 3QK3. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I, J, K, L,

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
38 41first strand
Strand 2
A
25 29anti-parallel
Strand 3
A
58 63anti-parallel
Strand 4
A
84 86anti-parallel
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There are 3 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
78 81first strand
Strand 2
A
66 69anti-parallel
Strand 3
A
103 106anti-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
A
125 132first strand
Strand 2
A
115 121anti-parallel
Strand 3
A
150 155anti-parallel
Strand 4
A
176 178anti-parallel
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There are 3 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
167 173first strand
Strand 2
A
158 163anti-parallel
Strand 3
A
193 196anti-parallel
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There are 4 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
38 41first strand
Strand 2
B
25 29anti-parallel
Strand 3
B
58 63anti-parallel
Strand 4
B
84 86anti-parallel
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There are 3 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
75 81first strand
Strand 2
B
66 71anti-parallel
Strand 3
B
103 106anti-parallel
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There are 4 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
125 132first strand
Strand 2
B
115 121anti-parallel
Strand 3
B
150 155anti-parallel
Strand 4
B
176 178anti-parallel
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There are 3 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
167 173first strand
Strand 2
B
158 163anti-parallel
Strand 3
B
193 196anti-parallel
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There are 4 strands in I sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
38 41first strand
Strand 2
C
25 29anti-parallel
Strand 3
C
58 63anti-parallel
Strand 4
C
84 86anti-parallel
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There are 3 strands in J sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
75 81first strand
Strand 2
C
66 71anti-parallel
Strand 3
C
103 106anti-parallel
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There are 4 strands in K sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
125 132first strand
Strand 2
C
115 121anti-parallel
Strand 3
C
150 155anti-parallel
Strand 4
C
176 178anti-parallel
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There are 3 strands in L sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
167 173first strand
Strand 2
C
158 163anti-parallel
Strand 3
C
193 196anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il