Analysis of interatomic Contacts of Structural Units in PDB entry:
4CTK


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 4CTK entry

There are 2 chains in PDB entry 4CTK (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLU 7HIS 263
C
 GLU 7HIS 263
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 22 helices in PDB entry 4CTK. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
8 20Right-handed alpha
Helix 2
2
A
21 29Right-handed alpha
Helix 3
3
A
38 47Right-handed alpha
Helix 4
4
A
57 67Right-handed alpha
Helix 5
5
A
85 93Right-handed alpha
Helix 6
6
A
120 122Right-handed 310
Helix 7
7
A
131 135Right-handed 310
Helix 8
8
A
153 169Right-handed alpha
Helix 9
9
A
170 172Right-handed 310
Helix 10
10
A
186 201Right-handed alpha
Helix 11
11
A
226 241Right-handed alpha
Helix 12
12
C
8 20Right-handed alpha
Helix 13
13
C
21 29Right-handed alpha
Helix 14
14
C
38 47Right-handed alpha
Helix 15
15
C
57 67Right-handed alpha
Helix 16
16
C
85 93Right-handed alpha
Helix 17
17
C
120 122Right-handed 310
Helix 18
18
C
131 135Right-handed 310
Helix 19
19
C
153 169Right-handed alpha
Helix 20
20
C
170 172Right-handed 310
Helix 21
21
C
186 201Right-handed alpha
Helix 22
22
C
226 244Right-handed alpha
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There are 4 sheets in PDB entry 4CTK. Click on sheet of interest to get list of strands forming it: AA, AB, CA, CB,

There are 2 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
34 37first strand
Strand 2
A
250 253parallel
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There are 7 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
124 127first strand
Strand 2
A
97 103parallel
Strand 3
A
75 80parallel
Strand 4
A
142 145parallel
Strand 5
A
176 181parallel
Strand 6
A
217 220anti-parallel
Strand 7
A
203 205anti-parallel
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There are 2 strands in CA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
34 37first strand
Strand 2
C
250 253parallel
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There are 7 strands in CB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
124 127first strand
Strand 2
C
97 103parallel
Strand 3
C
75 80parallel
Strand 4
C
142 145parallel
Strand 5
C
176 181parallel
Strand 6
C
217 220anti-parallel
Strand 7
C
203 205anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il