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


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 4XEP entry

There is 1 chain in PDB entry 4XEP (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA -1TRP 253
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 9 helices in PDB entry 4XEP. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA1
A
13 25Right-handed alpha
Helix 2
AA2
A
67 78Right-handed alpha
Helix 3
AA3
A
97 103Right-handed 310
Helix 4
AA4
A
104 112Right-handed alpha
Helix 5
AA5
A
130 148Right-handed alpha
Helix 6
AA6
A
164 168Right-handed 310
Helix 7
AA7
A
212 219Right-handed alpha
Helix 8
AA8
A
233 235Right-handed 310
Helix 9
AA9
A
236 248Right-handed alpha
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There are 3 sheets in PDB entry 4XEP. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3,

There are 9 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
53 55first strand
Strand 2
A
61 63anti-parallel
Strand 3
A
28 34parallel
Strand 4
A
2 6parallel
Strand 5
A
86 93parallel
Strand 6
A
120 125parallel
Strand 7
A
155 160parallel
Strand 8
A
222 227anti-parallel
Strand 9
A
171 173parallel
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There are 2 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
178 179first strand
Strand 2
A
205 207anti-parallel
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There are 2 strands in AA3 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
185 189first strand
Strand 2
A
195 199anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il