Analysis of interatomic Contacts of Structural Units in PDB entry:
1AS4


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 1AS4 entry

There are 2 chains in PDB entry 1AS4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 GLY 25LEU 358
B
 GLY 361GLN 393
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 1AS4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
26 44Right-handed alpha
Helix 2
2
A
54 67Right-handed alpha
Helix 3
3
A
70 79Right-handed alpha
Helix 4
4
A
89 103Right-handed alpha
Helix 5
5
A
128 137Right-handed alpha
Helix 6
6
A
150 164Right-handed alpha
Helix 7
7
A
200 202Right-handed 310
Helix 8
8
A
260 266Right-handed alpha
Helix 9
9
A
269 278Right-handed alpha
Helix 10
10
A
300 306Right-handed alpha
Helix 11
11
A
310 312Right-handed 310
Helix 12
12
A
319 322Right-handed alpha
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There are 4 sheets in PDB entry 1AS4. Click on sheet of interest to get list of strands forming it: A, B, C, D,

There are 6 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
141 145first strand
Strand 2
A
111 121parallel
Strand 3
A
180 193anti-parallel
Strand 4
A
344 357anti-parallel
Strand 5
A
327 340anti-parallel
Strand 6
A
291 298anti-parallel
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There are 3 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
285 289first strand
Strand 2
A
214 224anti-parallel
Strand 3
A
204 211anti-parallel
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There are 4 strands in C sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
279 283first strand
Strand 2
A
226 232anti-parallel
Strand 3
A
237 243anti-parallel
Strand 4
A
249 255anti-parallel
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There are 2 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
370 374first strand
Strand 2
B
384 388anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il