Analysis of interatomic Contacts of Structural Units in PDB entry:
1N4O


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 1N4O entry

There are 2 chains in PDB entry 1N4O (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 THR 23GLY 291
B
 THR 18GLY 291
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 30 helices in PDB entry 1N4O. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
23 30Right-handed alpha
Helix 2
2
A
32 41Right-handed alpha
Helix 3
3
A
69 71Right-handed 310
Helix 4
4
A
72 87Right-handed alpha
Helix 5
5
A
88 92Right-handed 310
Helix 6
6
A
98 102Right-handed 310
Helix 7
7
A
108 113Right-handed 310
Helix 8
8
A
119 129Right-handed alpha
Helix 9
9
A
131 143Right-handed alpha
Helix 10
10
A
143 155Right-handed alpha
Helix 11
11
A
167 171Right-handed 310
Helix 12
12
A
182 195Right-handed alpha
Helix 13
13
A
200 213Right-handed alpha
Helix 14
14
A
220 225Right-handed alpha
Helix 15
15
A
271 291Right-handed alpha
Helix 16
16
B
23 30Right-handed alpha
Helix 17
17
B
32 41Right-handed alpha
Helix 18
18
B
69 71Right-handed 310
Helix 19
19
B
72 85Right-handed alpha
Helix 20
20
B
87 92Right-handed 310
Helix 21
21
B
98 102Right-handed 310
Helix 22
22
B
108 113Right-handed 310
Helix 23
23
B
119 129Right-handed alpha
Helix 24
24
B
132 143Right-handed alpha
Helix 25
25
B
144 155Right-handed alpha
Helix 26
26
B
167 171Right-handed 310
Helix 27
27
B
182 195Right-handed alpha
Helix 28
28
B
200 213Right-handed alpha
Helix 29
29
B
220 225Right-handed alpha
Helix 30
30
B
271 291Right-handed alpha
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There are 6 sheets in PDB entry 1N4O. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F,

There are 5 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
56 60first strand
Strand 2
A
43 50anti-parallel
Strand 3
A
259 266anti-parallel
Strand 4
A
243 252anti-parallel
Strand 5
A
229 237anti-parallel
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There are 2 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
66 67first strand
Strand 2
A
180 181anti-parallel
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There are 2 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
94 97first strand
Strand 2
A
115 118anti-parallel
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There are 5 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
56 60first strand
Strand 2
B
43 50anti-parallel
Strand 3
B
259 266anti-parallel
Strand 4
B
243 252anti-parallel
Strand 5
B
229 237anti-parallel
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There are 2 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
66 67first strand
Strand 2
B
180 181anti-parallel
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There are 2 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
94 96first strand
Strand 2
B
116 118anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il