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


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 4XAH entry

There are 4 chains in PDB entry 4XAH (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1LEU 80
A
 LEU 82GLN 177
B
 MET 1LEU 80
B
 LEU 82LEU 178
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 20 helices in PDB entry 4XAH. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA1
A
24 31Right-handed alpha
Helix 2
AA2
A
31 36Right-handed alpha
Helix 3
AA3
A
43 47Right-handed 310
Helix 4
AA4
A
49 67Right-handed alpha
Helix 5
AA5
A
73 83Right-handed alpha
Helix 6
AA6
A
87 96Right-handed alpha
Helix 7
AA7
A
117 129Right-handed alpha
Helix 8
AA8
A
137 145Right-handed alpha
Helix 9
AA9
A
146 154Right-handed alpha
Helix 10
AB1
A
164 177Right-handed alpha
Helix 11
AB2
B
24 30Right-handed alpha
Helix 12
AB3
B
31 37Right-handed alpha
Helix 13
AB4
B
43 47Right-handed 310
Helix 14
AB5
B
49 67Right-handed alpha
Helix 15
AB6
B
73 83Right-handed alpha
Helix 16
AB7
B
87 96Right-handed alpha
Helix 17
AB8
B
117 129Right-handed alpha
Helix 18
AB9
B
137 143Right-handed alpha
Helix 19
AC1
B
146 154Right-handed alpha
Helix 20
AC2
B
164 177Right-handed alpha
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There are 4 sheets in PDB entry 4XAH. Click on sheet of interest to get list of strands forming it: AA1, AA2, AA3, AA4,

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
2 4first strand
Strand 2
A
13 20anti-parallel
Strand 3
A
104 110anti-parallel
Strand 4
A
40 42anti-parallel
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There are 3 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
2 4first strand
Strand 2
A
13 20anti-parallel
Strand 3
A
132 134anti-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
B
2 6first strand
Strand 2
B
9 20anti-parallel
Strand 3
B
104 110anti-parallel
Strand 4
B
40 42anti-parallel
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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
B
2 6first strand
Strand 2
B
9 20anti-parallel
Strand 3
B
132 134anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il