Analysis of interatomic Contacts of Structural Units in PDB entry:
1APU


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 1APU entry

There are 2 chains in PDB entry 1APU (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
E
 ALA 1ALA 323
I
 VAL 3VAL 2
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 10 helices in PDB entry 1APU. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
E
12 15Right-handed 310
Helix 2
2
E
58 63Right-handed alpha
Helix 3
3
E
109 115Right-handed alpha
Helix 4
4
E
126 130Right-handed 310
Helix 5
5
E
139 145Right-handed alpha
Helix 6
6
E
146 148Right-handed 310
Helix 7
7
E
171 175Right-handed 310
Helix 8
8
E
222 231Right-handed alpha
Helix 9
9
E
268 272Right-handed alpha
Helix 10
10
E
299 304Right-handed alpha
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There are 4 sheets in PDB entry 1APU. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 9 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
64 74first strand
Strand 2
E
80 92anti-parallel
Strand 3
E
17 23anti-parallel
Strand 4
E
4 10anti-parallel
Strand 5
E
163 167anti-parallel
Strand 6
E
152 156anti-parallel
Strand 7
E
306 311anti-parallel
Strand 8
E
316 321anti-parallel
Strand 9
E
180 183anti-parallel
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There are 13 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
64 74first strand
Strand 2
E
80 92anti-parallel
Strand 3
E
95 108anti-parallel
Strand 4
E
40 41parallel
Strand 5
E
120 123anti-parallel
Strand 6
E
26 33parallel
Strand 7
E
17 23anti-parallel
Strand 8
E
4 10anti-parallel
Strand 9
E
163 167anti-parallel
Strand 10
E
152 156anti-parallel
Strand 11
E
306 311anti-parallel
Strand 12
E
316 321anti-parallel
Strand 13
E
180 183anti-parallel
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There are 7 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
263 267first strand
Strand 2
E
256 260anti-parallel
Strand 3
E
192 200anti-parallel
Strand 4
E
203 212anti-parallel
Strand 5
E
296 298parallel
Strand 6
E
219 221anti-parallel
Strand 7
E
287 289parallel
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There are 4 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
E
237 239first strand
Strand 2
E
244 248anti-parallel
Strand 3
E
282 285anti-parallel
Strand 4
E
273 276anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il