Analysis of interatomic Contacts of Structural Units in PDB entry:
4A25


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 4A25 entry

There are 4 chains in PDB entry 4A25 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 2ARG 168
B
 THR 2ARG 170
C
 THR 2ARG 170
D
 THR 3ARG 168
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 28 helices in PDB entry 4A25. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
3 11Right-handed alpha
Helix 2
2
A
23 50Right-handed alpha
Helix 3
3
A
55 84Right-handed alpha
Helix 4
4
A
91 96Right-handed alpha
Helix 5
5
A
110 139Right-handed alpha
Helix 6
6
A
139 162Right-handed alpha
Helix 7
7
A
163 165Right-handed 310
Helix 8
8
B
3 11Right-handed alpha
Helix 9
9
B
23 50Right-handed alpha
Helix 10
10
B
55 84Right-handed alpha
Helix 11
11
B
91 96Right-handed alpha
Helix 12
12
B
110 139Right-handed alpha
Helix 13
13
B
139 162Right-handed alpha
Helix 14
14
B
163 165Right-handed 310
Helix 15
15
C
3 11Right-handed alpha
Helix 16
16
C
23 50Right-handed alpha
Helix 17
17
C
55 84Right-handed alpha
Helix 18
18
C
91 96Right-handed alpha
Helix 19
19
C
110 139Right-handed alpha
Helix 20
20
C
139 162Right-handed alpha
Helix 21
21
C
163 165Right-handed 310
Helix 22
22
D
3 11Right-handed alpha
Helix 23
23
D
23 50Right-handed alpha
Helix 24
24
D
55 84Right-handed alpha
Helix 25
25
D
91 96Right-handed alpha
Helix 26
26
D
110 139Right-handed alpha
Helix 27
27
D
139 162Right-handed alpha
Helix 28
28
D
163 165Right-handed 310
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There are 4 sheets in PDB entry 4A25. Click on sheet of interest to get list of strands forming it: AA, BA, CA, A,

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
51 52first strand
Strand 2
A
108 109parallel
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There are 2 strands in BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
51 52first strand
Strand 2
B
108 109parallel
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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
51 52first strand
Strand 2
C
108 109parallel
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There are 2 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
D
51 52first strand
Strand 2
D
108 109parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il