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


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 4XUN entry

There are 3 chains in PDB entry 4XUN (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 172THR 332
B
 ALA 172THR 332
C
 ALA 172THR 332
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 4XUN. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA1
A
225 228Right-handed 310
Helix 2
AA2
A
292 295Right-handed 310
Helix 3
AA3
A
310 314Right-handed 310
Helix 4
AA4
A
315 320Right-handed 310
Helix 5
AA5
B
225 228Right-handed 310
Helix 6
AA6
B
292 295Right-handed 310
Helix 7
AA7
B
310 314Right-handed 310
Helix 8
AA8
B
315 320Right-handed 310
Helix 9
AA9
C
225 228Right-handed 310
Helix 10
AB1
C
292 295Right-handed 310
Helix 11
AB2
C
310 314Right-handed 310
Helix 12
AB3
C
315 320Right-handed 310
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There are 9 sheets in PDB entry 4XUN. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8, AA9,

There are 4 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
174 176first strand
Strand 2
A
322 331anti-parallel
Strand 3
A
206 211anti-parallel
Strand 4
A
193 198anti-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
174 176first strand
Strand 2
A
322 331anti-parallel
Strand 3
A
233 241anti-parallel
Strand 4
A
282 289anti-parallel
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There are 4 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
221 223first strand
Strand 2
A
297 305anti-parallel
Strand 3
A
248 259anti-parallel
Strand 4
A
267 277anti-parallel
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There are 4 strands in AA4 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
174 176first strand
Strand 2
B
322 331anti-parallel
Strand 3
B
206 211anti-parallel
Strand 4
B
193 198anti-parallel
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There are 4 strands in AA5 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
174 176first strand
Strand 2
B
322 331anti-parallel
Strand 3
B
233 241anti-parallel
Strand 4
B
282 289anti-parallel
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There are 4 strands in AA6 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
221 223first strand
Strand 2
B
297 305anti-parallel
Strand 3
B
248 259anti-parallel
Strand 4
B
267 277anti-parallel
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There are 4 strands in AA7 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
174 176first strand
Strand 2
C
322 331anti-parallel
Strand 3
C
206 211anti-parallel
Strand 4
C
193 198anti-parallel
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There are 4 strands in AA8 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
174 176first strand
Strand 2
C
322 331anti-parallel
Strand 3
C
233 241anti-parallel
Strand 4
C
282 289anti-parallel
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There are 4 strands in AA9 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
221 223first strand
Strand 2
C
297 305anti-parallel
Strand 3
C
248 259anti-parallel
Strand 4
C
267 277anti-parallel
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