Analysis of interatomic Contacts of Structural Units in PDB entry:
3K4I


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 3K4I entry

There are 3 chains in PDB entry 3K4I (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PHE 7MSE 218
B
 TYR 9MSE 218
C
 SER 2TYR 220
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 25 helices in PDB entry 3K4I. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
13 21Right-handed alpha
Helix 2
2
A
24 35Right-handed alpha
Helix 3
3
A
76 81Right-handed 310
Helix 4
4
A
101 111Right-handed alpha
Helix 5
5
A
124 131Right-handed alpha
Helix 6
6
A
182 184Right-handed 310
Helix 7
7
A
185 209Right-handed alpha
Helix 8
8
A
212 218Right-handed alpha
Helix 9
9
B
13 21Right-handed alpha
Helix 10
10
B
24 35Right-handed alpha
Helix 11
11
B
76 81Right-handed 310
Helix 12
12
B
101 111Right-handed alpha
Helix 13
13
B
124 131Right-handed alpha
Helix 14
14
B
182 184Right-handed 310
Helix 15
15
B
185 209Right-handed alpha
Helix 16
16
B
212 218Right-handed alpha
Helix 17
17
C
13 20Right-handed alpha
Helix 18
18
C
21 23Right-handed 310
Helix 19
19
C
24 34Right-handed alpha
Helix 20
20
C
75 81Right-handed 310
Helix 21
21
C
101 111Right-handed alpha
Helix 22
22
C
124 131Right-handed alpha
Helix 23
23
C
182 184Right-handed 310
Helix 24
24
C
185 208Right-handed alpha
Helix 25
25
C
212 220Right-handed alpha
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There are 9 sheets in PDB entry 3K4I. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G, H, I,

There are 6 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
45 46first strand
Strand 2
A
135 137anti-parallel
Strand 3
A
115 119parallel
Strand 4
A
85 90parallel
Strand 5
A
53 64parallel
Strand 6
A
149 154anti-parallel
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There are 7 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
45 46first strand
Strand 2
A
135 137anti-parallel
Strand 3
A
115 119parallel
Strand 4
A
85 90parallel
Strand 5
A
53 64parallel
Strand 6
A
170 174anti-parallel
Strand 7
A
177 181anti-parallel
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There are 2 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
158 160first strand
Strand 2
A
163 165anti-parallel
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There are 6 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
45 46first strand
Strand 2
B
135 137anti-parallel
Strand 3
B
115 119parallel
Strand 4
B
85 90parallel
Strand 5
B
53 64parallel
Strand 6
B
149 154anti-parallel
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There are 7 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
45 46first strand
Strand 2
B
135 137anti-parallel
Strand 3
B
115 119parallel
Strand 4
B
85 90parallel
Strand 5
B
53 64parallel
Strand 6
B
170 174anti-parallel
Strand 7
B
177 181anti-parallel
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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
B
158 160first strand
Strand 2
B
163 165anti-parallel
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There are 6 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
45 46first strand
Strand 2
C
135 137anti-parallel
Strand 3
C
115 119parallel
Strand 4
C
85 90parallel
Strand 5
C
53 63parallel
Strand 6
C
150 154anti-parallel
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There are 7 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
45 46first strand
Strand 2
C
135 137anti-parallel
Strand 3
C
115 119parallel
Strand 4
C
85 90parallel
Strand 5
C
53 63parallel
Strand 6
C
170 174anti-parallel
Strand 7
C
177 181anti-parallel
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There are 2 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
158 160first strand
Strand 2
C
163 165anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il