Analysis of interatomic Contacts of Structural Units in PDB entry:
1EX4


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 1EX4 entry

There are 2 chains in PDB entry 1EX4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 56ASP 270
B
 ASP 55ASP 270
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 15 helices in PDB entry 1EX4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
56 58Right-handed 310
Helix 2
2
A
95 108Right-handed alpha
Helix 3
3
A
118 123Right-handed alpha
Helix 4
4
A
123 131Right-handed alpha
Helix 5
5
A
148 166Right-handed alpha
Helix 6
6
A
167 169Right-handed 310
Helix 7
7
A
172 186Right-handed alpha
Helix 8
8
A
195 209Right-handed alpha
Helix 9
9
A
210 222Right-handed alpha
Helix 10
10
B
95 108Right-handed alpha
Helix 11
11
B
118 123Right-handed alpha
Helix 12
12
B
123 133Right-handed alpha
Helix 13
13
B
150 167Right-handed alpha
Helix 14
14
B
171 186Right-handed alpha
Helix 15
15
B
195 222Right-handed alpha
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There are 5 sheets in PDB entry 1EX4. Click on sheet of interest to get list of strands forming it: A, B, C, D, E,

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
84 87first strand
Strand 2
A
71 77anti-parallel
Strand 3
A
60 68anti-parallel
Strand 4
A
112 115parallel
Strand 5
A
136 137parallel
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There are 5 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
257 261first strand
Strand 2
A
248 252anti-parallel
Strand 3
A
236 244anti-parallel
Strand 4
A
224 227anti-parallel
Strand 5
A
265 267anti-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
B
60 62first strand
Strand 2
B
112 114parallel
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There are 3 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
64 68first strand
Strand 2
B
71 78anti-parallel
Strand 3
B
83 89anti-parallel
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There are 5 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
257 261first strand
Strand 2
B
248 252anti-parallel
Strand 3
B
236 245anti-parallel
Strand 4
B
223 227anti-parallel
Strand 5
B
265 269anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il