Analysis of interatomic Contacts of Structural Units in PDB entry:
2EX4


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 2EX4 entry

There are 2 chains in PDB entry 2EX4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ARG -1ARG 224
B
 ARG -1ARG 224
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 26 helices in PDB entry 2EX4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
1 6Right-handed alpha
Helix 2
2
A
8 22Right-handed alpha
Helix 3
3
A
26 31Right-handed alpha
Helix 4
4
A
34 36Right-handed 310
Helix 5
5
A
37 51Right-handed alpha
Helix 6
6
A
52 54Right-handed 310
Helix 7
7
A
74 80Right-handed alpha
Helix 8
8
A
94 105Right-handed alpha
Helix 9
9
A
106 110Right-handed 310
Helix 10
10
A
119 123Right-handed 310
Helix 11
11
A
138 142Right-handed 310
Helix 12
12
A
143 157Right-handed alpha
Helix 13
13
A
187 198Right-handed alpha
Helix 14
14
B
1 5Right-handed 310
Helix 15
15
B
8 22Right-handed alpha
Helix 16
16
B
26 31Right-handed alpha
Helix 17
17
B
34 36Right-handed 310
Helix 18
18
B
37 54Right-handed alpha
Helix 19
19
B
74 80Right-handed alpha
Helix 20
20
B
80 85Right-handed alpha
Helix 21
21
B
94 105Right-handed alpha
Helix 22
22
B
106 110Right-handed 310
Helix 23
23
B
119 123Right-handed 310
Helix 24
24
B
138 142Right-handed 310
Helix 25
25
B
143 157Right-handed alpha
Helix 26
26
B
188 198Right-handed alpha
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There are 4 sheets in PDB entry 2EX4. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 7 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
112 117first strand
Strand 2
A
87 92parallel
Strand 3
A
65 69parallel
Strand 4
A
130 136parallel
Strand 5
A
158 170parallel
Strand 6
A
217 224anti-parallel
Strand 7
A
201 207anti-parallel
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There are 2 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
175 178first strand
Strand 2
A
183 186anti-parallel
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There are 7 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
112 117first strand
Strand 2
B
87 92parallel
Strand 3
B
65 69parallel
Strand 4
B
130 136parallel
Strand 5
B
158 171parallel
Strand 6
B
183 187parallel
Strand 7
B
175 178anti-parallel
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There are 7 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
112 117first strand
Strand 2
B
87 92parallel
Strand 3
B
65 69parallel
Strand 4
B
130 136parallel
Strand 5
B
158 171parallel
Strand 6
B
217 224anti-parallel
Strand 7
B
201 207anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il