Analysis of interatomic Contacts of Structural Units in PDB entry:
1S4U


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 1S4U entry

There is 1 chain in PDB entry 1S4U (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
X
 LYS 3ARG 392
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 5 helices in PDB entry 1S4U. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
X
50 53Right-handed 310
Helix 2
2
X
116 121Right-handed alpha
Helix 3
3
X
160 166Right-handed alpha
Helix 4
4
X
332 336Right-handed 310
Helix 5
5
X
338 342Right-handed 310
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There are 7 sheets in PDB entry 1S4U. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G,

There are 4 strands in A sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
X
7 11first strand
Strand 2
X
387 391anti-parallel
Strand 3
X
378 383anti-parallel
Strand 4
X
357 363anti-parallel
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There are 4 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
X
19 24first strand
Strand 2
X
28 33anti-parallel
Strand 3
X
37 42anti-parallel
Strand 4
X
55 59anti-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
X
65 75first strand
Strand 2
X
79 88anti-parallel
Strand 3
X
93 99anti-parallel
Strand 4
X
108 112anti-parallel
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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
X
124 130first strand
Strand 2
X
140 145anti-parallel
Strand 3
X
150 156anti-parallel
Strand 4
X
172 179anti-parallel
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There are 4 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
X
191 194first strand
Strand 2
X
199 203anti-parallel
Strand 3
X
209 213anti-parallel
Strand 4
X
219 223anti-parallel
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There are 4 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
X
236 241first strand
Strand 2
X
247 254anti-parallel
Strand 3
X
257 264anti-parallel
Strand 4
X
270 290anti-parallel
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There are 4 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
X
294 299first strand
Strand 2
X
305 310anti-parallel
Strand 3
X
314 319anti-parallel
Strand 4
X
324 330anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il