Analysis of interatomic Contacts of Structural Units in PDB entry:
2XS1


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 2XS1 entry

There are 2 chains in PDB entry 2XS1 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 2ARG 698
B
 GLU 42ASN 56
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 26 helices in PDB entry 2XS1. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
17 28Right-handed alpha
Helix 2
2
A
33 55Right-handed alpha
Helix 3
3
A
61 79Right-handed alpha
Helix 4
4
A
80 82Right-handed 310
Helix 5
5
A
115 137Right-handed alpha
Helix 6
6
A
142 171Right-handed alpha
Helix 7
7
A
176 179Right-handed 310
Helix 8
8
A
180 206Right-handed alpha
Helix 9
9
A
209 233Right-handed alpha
Helix 10
10
A
240 267Right-handed alpha
Helix 11
11
A
269 291Right-handed alpha
Helix 12
12
A
297 318Right-handed alpha
Helix 13
13
A
325 329Right-handed 310
Helix 14
14
A
360 399Right-handed alpha
Helix 15
15
A
402 407Right-handed alpha
Helix 16
16
A
414 427Right-handed alpha
Helix 17
17
A
429 472Right-handed alpha
Helix 18
18
A
480 515Right-handed alpha
Helix 19
19
A
516 524Right-handed alpha
Helix 20
20
A
526 533Right-handed alpha
Helix 21
21
A
540 544Right-handed 310
Helix 22
22
A
546 576Right-handed alpha
Helix 23
23
A
580 591Right-handed alpha
Helix 24
24
A
595 640Right-handed alpha
Helix 25
25
A
643 698Right-handed alpha
Helix 26
26
B
45 56Right-handed alpha
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There is 1 sheet ( AA) in PDB entry 2XS1.

There are 2 strands in AA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
93 96first strand
Strand 2
A
110 113anti-parallel
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