Analysis of interatomic Contacts of Structural Units in PDB entry:
1QK4


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 1QK4 entry

There are 4 chains in PDB entry 1QK4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1GLU 229
B
 MET 1GLU 229
C
 ALA 2GLU 229
D
 MET 1LYS 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
Back to top of page

There are 30 helices in PDB entry 1QK4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
5 9Right-handed 310
Helix 2
2
A
30 32Right-handed 310
Helix 3
3
A
48 67Right-handed alpha
Helix 4
4
A
81 99Right-handed alpha
Helix 5
5
A
133 138Right-handed 310
Helix 6
6
A
152 164Right-handed alpha
Helix 7
7
A
221 229Right-handed alpha
Helix 8
8
B
5 9Right-handed 310
Helix 9
9
B
30 32Right-handed 310
Helix 10
10
B
38 42Right-handed 310
Helix 11
11
B
48 67Right-handed alpha
Helix 12
12
B
81 99Right-handed alpha
Helix 13
13
B
133 138Right-handed 310
Helix 14
14
B
152 164Right-handed alpha
Helix 15
15
B
221 229Right-handed alpha
Helix 16
16
C
5 9Right-handed 310
Helix 17
17
C
30 32Right-handed 310
Helix 18
18
C
48 67Right-handed alpha
Helix 19
19
C
81 100Right-handed alpha
Helix 20
20
C
133 138Right-handed 310
Helix 21
21
C
152 166Right-handed alpha
Helix 22
22
C
221 229Right-handed alpha
Helix 23
23
D
5 9Right-handed 310
Helix 24
24
D
30 32Right-handed 310
Helix 25
25
D
38 42Right-handed 310
Helix 26
26
D
48 67Right-handed alpha
Helix 27
27
D
81 99Right-handed alpha
Helix 28
28
D
133 138Right-handed 310
Helix 29
29
D
152 164Right-handed alpha
Helix 30
30
D
221 229Right-handed alpha
Back to top of page

There are 8 sheets in PDB entry 1QK4. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H,

There are 5 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
126 131first strand
Strand 2
A
109 118anti-parallel
Strand 3
A
72 78parallel
Strand 4
A
141 146parallel
Strand 5
A
169 174parallel
Back to list of sheets
Back to top of page

There are 2 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
176 178first strand
Strand 2
A
193 195parallel
Back to list of sheets
Back to top of page

There are 5 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
126 131first strand
Strand 2
B
109 118anti-parallel
Strand 3
B
72 78parallel
Strand 4
B
141 146parallel
Strand 5
B
169 174parallel
Back to list of sheets
Back to top of page

There are 2 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
176 178first strand
Strand 2
B
193 195parallel
Back to list of sheets
Back to top of page

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
C
109 113first strand
Strand 2
C
72 77parallel
Strand 3
C
141 146parallel
Strand 4
C
169 174parallel
Back to list of sheets
Back to top of page

There are 2 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
176 179first strand
Strand 2
C
193 196parallel
Back to list of sheets
Back to top of page

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
D
109 114first strand
Strand 2
D
72 78parallel
Strand 3
D
141 146parallel
Strand 4
D
169 174parallel
Back to list of sheets
Back to top of page

There are 2 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
176 178first strand
Strand 2
D
193 195parallel
Back to list of sheets
Back to top of page
Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il