Analysis of interatomic Contacts of Structural Units in PDB entry:
1XB2


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 1XB2 entry

There are 2 chains in PDB entry 1XB2 (CSU analysis of residue contacts immediately below table)
Chain ID Initial residueTerminal residue
A
 PRO 56SER 452
B
 SER 56GLY 331
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 23 helices in PDB entry 1XB2. Click on helix of interest for CSU analysis.
Helix
number 		Helix
ID		Chain
ID		 Initial
residue		Terminal
residue		 Helix class
Helix 1
1
A
65 68Right-handed 310
Helix 2
2
A
69 81Right-handed alpha
Helix 3
3
A
129 140Right-handed alpha
Helix 4
4
A
160 171Right-handed alpha
Helix 5
5
A
188 206Right-handed alpha
Helix 6
6
A
219 225Right-handed alpha
Helix 7
7
A
232 247Right-handed alpha
Helix 8
8
A
330 334Right-handed 310
Helix 9
9
A
360 364Right-handed 310
Helix 10
10
A
443 448Right-handed alpha
Helix 11
11
B
56 71Right-handed alpha
Helix 12
12
B
73 84Right-handed alpha
Helix 13
13
B
87 111Right-handed alpha
Helix 14
14
B
138 143Right-handed alpha
Helix 15
15
B
144 163Right-handed alpha
Helix 16
16
B
178 184Right-handed alpha
Helix 17
17
B
194 207Right-handed alpha
Helix 18
18
B
258 261Right-handed 310
Helix 19
19
B
262 277Right-handed alpha
Helix 20
20
B
289 293Right-handed 310
Helix 21
21
B
295 299Right-handed 310
Helix 22
22
B
308 314Right-handed alpha
Helix 23
23
B
315 317Right-handed 310
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There are 7 sheets in PDB entry 1XB2. Click on sheet of interest to get list of strands forming it: A, B, C, D, E, F, G,

There are 6 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
113 116first strand
Strand 2
A
121 125anti-parallel
Strand 3
A
57 63parallel
Strand 4
A
146 152parallel
Strand 5
A
176 181parallel
Strand 6
A
215 218parallel
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There are 7 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
259 261first strand
Strand 2
A
339 341anti-parallel
Strand 3
A
289 293anti-parallel
Strand 4
A
299 308anti-parallel
Strand 5
A
321 326anti-parallel
Strand 6
A
272 278anti-parallel
Strand 7
A
264 268anti-parallel
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There are 5 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
259 261first strand
Strand 2
A
339 341anti-parallel
Strand 3
A
289 293anti-parallel
Strand 4
A
299 308anti-parallel
Strand 5
A
311 313anti-parallel
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There are 2 strands in D sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
283 285first strand
Strand 2
A
315 317anti-parallel
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There are 7 strands in E sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
A
349 358first strand
Strand 2
A
403 414anti-parallel
Strand 3
A
383 390anti-parallel
Strand 4
A
377 380anti-parallel
Strand 5
A
421 425anti-parallel
Strand 6
A
430 438anti-parallel
Strand 7
A
349 358anti-parallel
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There are 5 strands in F sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
173 177first strand
Strand 2
B
210 219anti-parallel
Strand 3
B
128 136anti-parallel
Strand 4
B
117 125anti-parallel
Strand 5
B
243 245anti-parallel
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There are 3 strands in G sheet. Click on strand of interest for CSU analysis.
Strand
number 		Chain
ID		 Initial
residue		Terminal
residue		 Strand sense
Strand 1
B
224 231first strand
Strand 2
B
247 254anti-parallel
Strand 3
B
319 327anti-parallel
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Please mail questions/suggestions concerning this page to Vladimir.Sobolev@weizmann. ac.il