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


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 4XAP entry

There is 1 chain in PDB entry 4XAP (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 MET 1ILE 281
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 17 helices in PDB entry 4XAP. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
AA1
A
29 31Right-handed 310
Helix 2
AA2
A
32 46Right-handed alpha
Helix 3
AA3
A
60 70Right-handed alpha
Helix 4
AA4
A
73 77Right-handed 310
Helix 5
AA5
A
84 88Right-handed 310
Helix 6
AA6
A
89 105Right-handed alpha
Helix 7
AA7
A
121 135Right-handed alpha
Helix 8
AA8
A
147 157Right-handed alpha
Helix 9
AA9
A
159 163Right-handed 310
Helix 10
AB1
A
175 179Right-handed 310
Helix 11
AB2
A
180 188Right-handed alpha
Helix 12
AB3
A
198 205Right-handed 310
Helix 13
AB4
A
206 216Right-handed alpha
Helix 14
AB5
A
219 230Right-handed alpha
Helix 15
AB6
A
242 252Right-handed alpha
Helix 16
AB7
A
253 255Right-handed 310
Helix 17
AB8
A
258 269Right-handed alpha
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There are 2 sheets in PDB entry 4XAP. Click on sheet of interest to get list of strands forming it: AA1, AA2,

There are 2 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
7 9first strand
Strand 2
A
15 17anti-parallel
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There are 8 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
21 22first strand
Strand 2
A
50 52parallel
Strand 3
A
78 83parallel
Strand 4
A
111 114parallel
Strand 5
A
141 144parallel
Strand 6
A
166 169parallel
Strand 7
A
192 195parallel
Strand 8
A
234 236parallel
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