Analysis of interatomic Contacts of Structural Units in PDB entry:
1CU4


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 1CU4 entry

There are 3 chains in PDB entry 1CU4 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
L
 ASP 1CYS 214
H
 LYS 3SER 213
P
 ALA 104ALA 113
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 9 helices in PDB entry 1CU4. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
L
79 83Right-handed 310
Helix 2
2
L
121 126Right-handed alpha
Helix 3
3
L
183 189Right-handed alpha
Helix 4
4
H
52 55Right-handed 310
Helix 5
5
H
61 64Right-handed 310
Helix 6
6
H
95 98Right-handed 310
Helix 7
7
H
153 155Right-handed 310
Helix 8
8
H
183 188Right-handed alpha
Helix 9
9
H
197 200Right-handed 310
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There are 10 sheets in PDB entry 1CU4. Click on sheet of interest to get list of strands forming it: A, B, B1, C, D, E, F, F1, G, H,

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
L
4 7first strand
Strand 2
L
19 25anti-parallel
Strand 3
L
70 75anti-parallel
Strand 4
L
62 67anti-parallel
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There are 6 strands in B sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
10 14first strand
Strand 2
L
102 106parallel
Strand 3
L
84 90anti-parallel
Strand 4
L
33 38anti-parallel
Strand 5
L
45 49anti-parallel
Strand 6
L
53 54anti-parallel
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There are 4 strands in B1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
L
10 14first strand
Strand 2
L
102 106parallel
Strand 3
L
84 90anti-parallel
Strand 4
L
96 97anti-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
L
114 118first strand
Strand 2
L
129 139anti-parallel
Strand 3
L
173 182anti-parallel
Strand 4
L
159 163anti-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
L
153 155first strand
Strand 2
L
145 150anti-parallel
Strand 3
L
191 198anti-parallel
Strand 4
L
201 210anti-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
H
4 6first strand
Strand 2
H
18 24anti-parallel
Strand 3
H
77 82anti-parallel
Strand 4
H
67 72anti-parallel
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There are 5 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
56 59first strand
Strand 2
H
45 52anti-parallel
Strand 3
H
34 39anti-parallel
Strand 4
H
88 94anti-parallel
Strand 5
H
99 100anti-parallel
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There are 6 strands in F1 sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
56 59first strand
Strand 2
H
45 52anti-parallel
Strand 3
H
34 39anti-parallel
Strand 4
H
88 94anti-parallel
Strand 5
H
104 108anti-parallel
Strand 6
H
10 12parallel
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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
H
117 121first strand
Strand 2
H
132 142anti-parallel
Strand 3
H
171 181anti-parallel
Strand 4
H
160 168anti-parallel
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There are 3 strands in H sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
H
148 151first strand
Strand 2
H
190 196anti-parallel
Strand 3
H
201 207anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il