Analysis of interatomic Contacts of Structural Units in PDB entry:
3ION


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 3ION entry

There is 1 chain in PDB entry 3ION (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
ARG 75THR 359
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 14 helices in PDB entry 3ION. Click on helix of interest for CSU analysis.
Helix
number
Helix
ID
Chain
ID
Initial
residue
Terminal
residue
Helix class
Helix 1
1
A
78 80Right-handed 310
Helix 2
2
A
115 121Right-handed alpha
Helix 3
3
A
123 137Right-handed alpha
Helix 4
4
A
166 175Right-handed alpha
Helix 5
5
A
178 199Right-handed alpha
Helix 6
6
A
245 249Right-handed 310
Helix 7
7
A
250 254Right-handed 310
Helix 8
8
A
260 278Right-handed alpha
Helix 9
9
A
286 297Right-handed alpha
Helix 10
10
A
306 315Right-handed alpha
Helix 11
11
A
327 331Right-handed 310
Helix 12
12
A
332 338Right-handed alpha
Helix 13
13
A
339 343Right-handed 310
Helix 14
14
A
346 353Right-handed 310
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There are 3 sheets in PDB entry 3ION. Click on sheet of interest to get list of strands forming it: A, B, C,

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
82 90first strand
Strand 2
A
94 101anti-parallel
Strand 3
A
107 114anti-parallel
Strand 4
A
154 159anti-parallel
Strand 5
A
145 150anti-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
201 202first strand
Strand 2
A
228 229anti-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
211 213first strand
Strand 2
A
219 221anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il