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


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 4XPN entry

There are 4 chains in PDB entry 4XPN (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 4ALA 299
B
 ALA 553ALA 568
C
 SER 6ALA 299
D
 ARG 554LEU 567
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 22 helices in PDB entry 4XPN. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA1
A
8 18Right-handed alpha
Helix 2
AA2
A
31 49Right-handed alpha
Helix 3
AA3
A
68 80Right-handed alpha
Helix 4
AA4
A
99 114Right-handed alpha
Helix 5
AA5
A
127 132Right-handed alpha
Helix 6
AA6
A
135 144Right-handed alpha
Helix 7
AA7
A
145 157Right-handed alpha
Helix 8
AA8
A
183 188Right-handed alpha
Helix 9
AA9
A
199 207Right-handed alpha
Helix 10
AB1
A
228 239Right-handed alpha
Helix 11
AB2
A
271 275Right-handed 310
Helix 12
AB3
C
8 19Right-handed alpha
Helix 13
AB4
C
31 49Right-handed alpha
Helix 14
AB5
C
68 80Right-handed alpha
Helix 15
AB6
C
99 114Right-handed alpha
Helix 16
AB7
C
127 132Right-handed alpha
Helix 17
AB8
C
135 144Right-handed alpha
Helix 18
AB9
C
145 157Right-handed alpha
Helix 19
AC1
C
183 188Right-handed alpha
Helix 20
AC2
C
199 207Right-handed alpha
Helix 21
AC3
C
228 239Right-handed alpha
Helix 22
AC4
C
271 275Right-handed 310
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There are 8 sheets in PDB entry 4XPN. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4, AA5, AA6, AA7, AA8,

There are 6 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
52 55first strand
Strand 2
A
162 165parallel
Strand 3
A
169 172anti-parallel
Strand 4
A
243 246parallel
Strand 5
A
263 266parallel
Strand 6
A
255 258anti-parallel
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There are 6 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
118 120first strand
Strand 2
A
87 89parallel
Strand 3
A
59 62parallel
Strand 4
A
280 285anti-parallel
Strand 5
A
290 296anti-parallel
Strand 6
B
557 558parallel
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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
A
118 120first strand
Strand 2
A
87 89parallel
Strand 3
A
59 62parallel
Strand 4
A
280 285anti-parallel
Strand 5
A
290 296anti-parallel
Strand 6
B
563 565parallel
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There are 3 strands in AA4 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
208 209first strand
Strand 2
A
225 227parallel
Strand 3
A
216 218anti-parallel
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There are 6 strands in AA5 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
52 55first strand
Strand 2
C
162 165parallel
Strand 3
C
169 172anti-parallel
Strand 4
C
243 246parallel
Strand 5
C
263 266parallel
Strand 6
C
255 258anti-parallel
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There are 6 strands in AA6 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
C
118 120first strand
Strand 2
C
87 89parallel
Strand 3
C
59 62parallel
Strand 4
C
280 285anti-parallel
Strand 5
C
290 296anti-parallel
Strand 6
D
557 558parallel
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There are 6 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
118 120first strand
Strand 2
C
87 89parallel
Strand 3
C
59 62parallel
Strand 4
C
280 285anti-parallel
Strand 5
C
290 296anti-parallel
Strand 6
D
563 565parallel
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There are 3 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
208 209first strand
Strand 2
C
225 227parallel
Strand 3
C
216 218anti-parallel
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