Analysis of interatomic Contacts of Structural Units in PDB entry:
4X2O


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 4X2O entry

There are 3 chains in PDB entry 4X2O (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 364GLN 556
B
 SER 3TYR 183
C
 SER 30ALA 37
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 12 helices in PDB entry 4X2O. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA1
A
381 397Right-handed alpha
Helix 2
AA2
A
400 406Right-handed alpha
Helix 3
AA3
A
423 435Right-handed alpha
Helix 4
AA4
A
456 464Right-handed alpha
Helix 5
AA5
A
474 478Right-handed 310
Helix 6
AA6
B
4 21Right-handed alpha
Helix 7
AA7
B
25 32Right-handed 310
Helix 8
AA8
B
33 39Right-handed alpha
Helix 9
AA9
B
55 68Right-handed alpha
Helix 10
AB1
B
106 113Right-handed alpha
Helix 11
AB2
B
114 118Right-handed 310
Helix 12
AB3
B
158 163Right-handed alpha
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There are 3 sheets in PDB entry 4X2O. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3,

There are 7 strands in AA1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
375 376first strand
Strand 2
A
479 488parallel
Strand 3
A
498 513anti-parallel
Strand 4
A
518 532anti-parallel
Strand 5
A
541 555anti-parallel
Strand 6
A
411 416parallel
Strand 7
A
448 453anti-parallel
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There are 4 strands in AA2 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
375 376first strand
Strand 2
A
479 488parallel
Strand 3
A
498 513anti-parallel
Strand 4
A
466 468anti-parallel
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There are 6 strands in AA3 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
51 53first strand
Strand 2
B
45 48anti-parallel
Strand 3
B
173 183parallel
Strand 4
B
145 157anti-parallel
Strand 5
B
122 135anti-parallel
Strand 6
B
83 98anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il