Analysis of interatomic Contacts of Structural Units in PDB entry:
4EC9


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 4EC9 entry


Note, this PDB entry contains modified residue(s) PHOSPHOTHREONINE (TPO) . This residue is treated as heterogroup (ligand) both in the PDB entry and in LPC/CSU analysis.

There are 3 chains in PDB entry 4EC9 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
SER 7TYR 185
A
ASN 187MET 327
B
ASN 9ARG 259
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 27 helices in PDB entry 4EC9. Click on helix of interest for CSU analysis.
Helix
number
Helix
ID
Chain
ID
Initial
residue
Terminal
residue
Helix class
Helix 1
1
A
60 73Right-handed alpha
Helix 2
2
A
110 116Right-handed alpha
Helix 3
3
A
122 143Right-handed alpha
Helix 4
4
A
151 153Right-handed 310
Helix 5
5
A
191 195Right-handed 310
Helix 6
6
A
196 201Right-handed alpha
Helix 7
7
A
208 225Right-handed alpha
Helix 8
8
A
233 246Right-handed alpha
Helix 9
9
A
255 259Right-handed 310
Helix 10
10
A
274 280Right-handed alpha
Helix 11
11
A
285 296Right-handed alpha
Helix 12
12
A
305 312Right-handed alpha
Helix 13
13
A
313 316Right-handed 310
Helix 14
14
B
15 21Right-handed alpha
Helix 15
15
B
24 28Right-handed 310
Helix 16
16
B
30 52Right-handed alpha
Helix 17
17
B
55 70Right-handed alpha
Helix 18
18
B
79 95Right-handed alpha
Helix 19
19
B
100 113Right-handed alpha
Helix 20
20
B
123 144Right-handed alpha
Helix 21
21
B
152 163Right-handed alpha
Helix 22
22
B
167 185Right-handed alpha
Helix 23
23
B
186 190Right-handed 310
Helix 24
24
B
192 208Right-handed alpha
Helix 25
25
B
220 225Right-handed 310
Helix 26
26
B
230 248Right-handed alpha
Helix 27
27
B
251 256Right-handed 310
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There are 3 sheets in PDB entry 4EC9. Click on sheet of interest to get list of strands forming it: A, B, C,

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
14 15first strand
Strand 2
A
81 86parallel
Strand 3
A
99 104anti-parallel
Strand 4
A
44 49anti-parallel
Strand 5
A
33 38anti-parallel
Strand 6
A
19 24anti-parallel
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There are 3 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
108 109first strand
Strand 2
A
155 157anti-parallel
Strand 3
A
163 165anti-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
145 146first strand
Strand 2
A
172 173anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il