Analysis of interatomic Contacts of Structural Units in PDB entry:
2X4A


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 2X4A entry

There is 1 chain in PDB entry 2X4A (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 359ILE 685
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 18 helices in PDB entry 2X4A. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
367 369Right-handed 310
Helix 2
2
A
370 378Right-handed alpha
Helix 3
3
A
378 392Right-handed alpha
Helix 4
4
A
436 443Right-handed 310
Helix 5
5
A
460 469Right-handed alpha
Helix 6
6
A
477 492Right-handed alpha
Helix 7
7
A
493 496Right-handed 310
Helix 8
8
A
498 511Right-handed alpha
Helix 9
9
A
513 524Right-handed alpha
Helix 10
10
A
525 539Right-handed alpha
Helix 11
11
A
545 557Right-handed alpha
Helix 12
12
A
562 574Right-handed alpha
Helix 13
13
A
574 584Right-handed alpha
Helix 14
14
A
594 604Right-handed alpha
Helix 15
15
A
617 634Right-handed alpha
Helix 16
16
A
638 641Right-handed 310
Helix 17
17
A
647 649Right-handed 310
Helix 18
18
A
650 660Right-handed alpha
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There are 4 sheets in PDB entry 2X4A. Click on sheet of interest to get list of strands forming it: AA, AB, AC, AD,

There are 4 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
398 402first strand
Strand 2
A
362 366parallel
Strand 3
A
410 415anti-parallel
Strand 4
A
418 424anti-parallel
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There are 4 strands in AB sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
447 451first strand
Strand 2
A
454 459anti-parallel
Strand 3
A
430 432anti-parallel
Strand 4
A
474 476anti-parallel
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There are 4 strands in AC sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
666 669first strand
Strand 2
A
643 646parallel
Strand 3
A
588 592parallel
Strand 4
A
679 684parallel
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There are 2 strands in AD sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
605 607first strand
Strand 2
A
612 614anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il