Analysis of interatomic Contacts of Structural Units in PDB entry:
1X81


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 1X81 entry

There are 2 chains in PDB entry 1X81 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PHE 55ARG 369
B
 PRO 22LYS 418
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 1X81. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
93 109Right-handed alpha
Helix 2
2
A
113 127Right-handed alpha
Helix 3
3
A
130 144Right-handed alpha
Helix 4
4
A
149 162Right-handed alpha
Helix 5
5
A
166 180Right-handed alpha
Helix 6
6
A
185 193Right-handed alpha
Helix 7
7
A
199 213Right-handed alpha
Helix 8
8
A
218 230Right-handed alpha
Helix 9
9
A
235 248Right-handed alpha
Helix 10
10
A
252 268Right-handed alpha
Helix 11
11
A
274 283Right-handed alpha
Helix 12
12
A
288 293Right-handed 310
Helix 13
13
A
294 303Right-handed alpha
Helix 14
14
A
308 325Right-handed alpha
Helix 15
15
A
329 346Right-handed alpha
Helix 16
16
A
349 351Right-handed 310
Helix 17
17
A
352 368Right-handed alpha
Helix 18
18
B
23 34Right-handed 310
Helix 19
19
B
42 62Right-handed alpha
Helix 20
20
B
74 86Right-handed alpha
Helix 21
21
B
99 115Right-handed alpha
Helix 22
22
B
119 134Right-handed alpha
Helix 23
23
B
149 164Right-handed alpha
Helix 24
24
B
165 170Right-handed alpha
Helix 25
25
B
173 185Right-handed alpha
Helix 26
26
B
200 214Right-handed alpha
Helix 27
27
B
224 231Right-handed alpha
Helix 28
28
B
248 263Right-handed alpha
Helix 29
29
B
264 268Right-handed 310
Helix 30
30
B
269 281Right-handed alpha
Helix 31
31
B
304 306Right-handed 310
Helix 32
32
B
307 318Right-handed alpha
Helix 33
33
B
331 343Right-handed alpha
Helix 34
34
B
361 374Right-handed alpha
Helix 35
35
B
389 393Right-handed 310
Helix 36
36
B
404 416Right-handed alpha
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There is 1 sheet ( A) in PDB entry 1X81.

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
B
375 378first strand
Strand 2
B
381 384anti-parallel
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