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


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 1XRA entry

There is 1 chain in PDB entry 1XRA (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 ALA 1LYS 383
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 13 helices in PDB entry 1XRA. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
15 33Right-handed alpha
Helix 2
2
A
64 75Right-handed alpha
Helix 3
3
A
80 82Right-handed 310
Helix 4
4
A
111 113Right-handed 310
Helix 5
5
A
136 153Right-handed alpha
Helix 6
6
A
195 204Right-handed alpha
Helix 7
7
A
246 250Right-handed alpha
Helix 8
8
A
270 287Right-handed alpha
Helix 9
9
A
322 332Right-handed alpha
Helix 10
10
A
337 343Right-handed alpha
Helix 11
11
A
353 355Right-handed 310
Helix 12
12
A
366 368Right-handed 310
Helix 13
13
A
371 380Right-handed 310
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There are 3 sheets in PDB entry 1XRA. Click on sheet of interest to get list of strands forming it: A, B, C,

There are 4 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
4 10first strand
Strand 2
A
164 171anti-parallel
Strand 3
A
179 187anti-parallel
Strand 4
A
221 224parallel
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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
A
38 46first strand
Strand 2
A
49 57anti-parallel
Strand 3
A
90 98parallel
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There are 3 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
120 127first strand
Strand 2
A
293 300anti-parallel
Strand 3
A
309 314anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il