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


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 1XNS entry

There are 4 chains in PDB entry 1XNS (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
C
 T 1 T 35
D
 A 2 T 35
A
 SER 20ASP 341
B
 SER 20ASP 341
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 36 helices in PDB entry 1XNS. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
20 33Right-handed alpha
Helix 2
2
A
34 37Right-handed 310
Helix 3
3
A
38 58Right-handed alpha
Helix 4
4
A
67 81Right-handed alpha
Helix 5
5
A
84 101Right-handed alpha
Helix 6
6
A
106 109Right-handed 310
Helix 7
7
A
110 127Right-handed alpha
Helix 8
8
A
138 150Right-handed alpha
Helix 9
9
A
154 171Right-handed alpha
Helix 10
10
A
173 180Right-handed alpha
Helix 11
11
A
181 183Right-handed 310
Helix 12
12
A
188 192Right-handed 310
Helix 13
13
A
214 229Right-handed alpha
Helix 14
14
A
257 274Right-handed alpha
Helix 15
15
A
289 302Right-handed alpha
Helix 16
16
A
305 313Right-handed alpha
Helix 17
17
A
318 325Right-handed alpha
Helix 18
18
A
328 332Right-handed 310
Helix 19
19
A
333 340Right-handed alpha
Helix 20
20
B
20 33Right-handed alpha
Helix 21
21
B
34 37Right-handed 310
Helix 22
22
B
38 59Right-handed alpha
Helix 23
23
B
67 81Right-handed alpha
Helix 24
24
B
84 103Right-handed alpha
Helix 25
25
B
106 109Right-handed 310
Helix 26
26
B
110 126Right-handed alpha
Helix 27
27
B
138 150Right-handed alpha
Helix 28
28
B
154 171Right-handed alpha
Helix 29
29
B
173 179Right-handed alpha
Helix 30
30
B
181 183Right-handed 310
Helix 31
31
B
214 229Right-handed alpha
Helix 32
32
B
257 274Right-handed alpha
Helix 33
33
B
289 302Right-handed alpha
Helix 34
34
B
305 313Right-handed alpha
Helix 35
35
B
318 323Right-handed alpha
Helix 36
36
B
333 340Right-handed alpha
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There are 3 sheets in PDB entry 1XNS. Click on sheet of interest to get list of strands forming it: A, B, C,

There are 2 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
185 186first strand
Strand 2
A
194 195anti-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
B
185 187first strand
Strand 2
B
193 199anti-parallel
Strand 3
B
204 212anti-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
B
241 242first strand
Strand 2
B
248 249anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il