Analysis of interatomic Contacts of Structural Units in PDB entry:
3EX4


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 3EX4 entry

There is 1 chain in PDB entry 3EX4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 223GLY 479
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 13 helices in PDB entry 3EX4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
226 231Right-handed alpha
Helix 2
2
A
237 251Right-handed alpha
Helix 3
3
A
262 274Right-handed alpha
Helix 4
4
A
275 277Right-handed 310
Helix 5
5
A
283 287Right-handed 310
Helix 6
6
A
291 306Right-handed alpha
Helix 7
7
A
318 328Right-handed alpha
Helix 8
8
A
332 337Right-handed alpha
Helix 9
9
A
348 359Right-handed alpha
Helix 10
10
A
379 393Right-handed alpha
Helix 11
11
A
434 441Right-handed alpha
Helix 12
12
A
450 455Right-handed alpha
Helix 13
13
A
458 479Right-handed alpha
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There is 1 sheet ( A) in PDB entry 3EX4.

There are 9 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
254 257first strand
Strand 2
A
279 282parallel
Strand 3
A
308 315parallel
Strand 4
A
339 343parallel
Strand 5
A
364 368parallel
Strand 6
A
397 401parallel
Strand 7
A
413 416parallel
Strand 8
A
446 449parallel
Strand 9
A
254 257parallel
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