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


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 2XTO entry

There are 2 chains in PDB entry 2XTO (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 SER 21ALA 255
B
 SER 21TYR 253
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 22 helices in PDB entry 2XTO. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
34 44Right-handed alpha
Helix 2
2
A
79 84Right-handed 310
Helix 3
3
A
90 103Right-handed alpha
Helix 4
4
A
119 134Right-handed alpha
Helix 5
5
A
136 139Right-handed 310
Helix 6
6
A
147 152Right-handed 310
Helix 7
7
A
155 162Right-handed alpha
Helix 8
8
A
165 175Right-handed alpha
Helix 9
9
A
188 210Right-handed alpha
Helix 10
10
A
216 222Right-handed alpha
Helix 11
11
A
235 254Right-handed alpha
Helix 12
12
B
34 44Right-handed alpha
Helix 13
13
B
79 84Right-handed 310
Helix 14
14
B
90 103Right-handed alpha
Helix 15
15
B
119 134Right-handed alpha
Helix 16
16
B
135 139Right-handed 310
Helix 17
17
B
147 152Right-handed 310
Helix 18
18
B
155 162Right-handed alpha
Helix 19
19
B
165 175Right-handed alpha
Helix 20
20
B
188 209Right-handed alpha
Helix 21
21
B
216 223Right-handed alpha
Helix 22
22
B
235 253Right-handed alpha
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There are 2 sheets in PDB entry 2XTO. Click on sheet of interest to get list of strands forming it: AA, BA,

There are 6 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
62 68first strand
Strand 2
A
71 77anti-parallel
Strand 3
A
23 28parallel
Strand 4
A
108 114parallel
Strand 5
A
141 146parallel
Strand 6
A
179 181parallel
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There are 6 strands in BA sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
62 68first strand
Strand 2
B
71 77anti-parallel
Strand 3
B
23 29parallel
Strand 4
B
108 114parallel
Strand 5
B
141 146parallel
Strand 6
B
179 181parallel
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