Analysis of interatomic Contacts of Structural Units in PDB entry:
2X4I


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 2X4I entry

There are 4 chains in PDB entry 2X4I (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ASN 2VAL 113
B
 ASN 2VAL 113
C
 ASN 2ASP 114
D
 ASN 2ASP 114
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 16 helices in PDB entry 2X4I. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
11 14Right-handed 310
Helix 2
2
A
28 37Right-handed alpha
Helix 3
3
A
47 59Right-handed alpha
Helix 4
4
A
93 104Right-handed alpha
Helix 5
5
B
11 14Right-handed 310
Helix 6
6
B
28 37Right-handed alpha
Helix 7
7
B
47 59Right-handed alpha
Helix 8
8
B
93 103Right-handed alpha
Helix 9
9
C
11 14Right-handed 310
Helix 10
10
C
28 37Right-handed alpha
Helix 11
11
C
47 58Right-handed alpha
Helix 12
12
C
93 99Right-handed alpha
Helix 13
13
D
11 14Right-handed 310
Helix 14
14
D
28 37Right-handed alpha
Helix 15
15
D
47 59Right-handed alpha
Helix 16
16
D
95 103Right-handed alpha
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There are 2 sheets in PDB entry 2X4I. Click on sheet of interest to get list of strands forming it: AA, CA,

There are 10 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
41 43first strand
Strand 2
A
4 7parallel
Strand 3
A
76 82parallel
Strand 4
A
106 112anti-parallel
Strand 5
A
20 27anti-parallel
Strand 6
B
20 27anti-parallel
Strand 7
B
107 112anti-parallel
Strand 8
B
76 81anti-parallel
Strand 9
B
4 7parallel
Strand 10
B
42 43parallel
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There are 10 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
42 43first strand
Strand 2
C
4 7parallel
Strand 3
C
76 81parallel
Strand 4
C
107 114anti-parallel
Strand 5
C
20 27anti-parallel
Strand 6
D
20 27anti-parallel
Strand 7
D
107 113anti-parallel
Strand 8
D
76 81anti-parallel
Strand 9
D
4 7parallel
Strand 10
D
41 43parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il